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authorDenys Dmytriyenko <denis@denix.org>2009-03-17 14:32:59 -0400
committerDenys Dmytriyenko <denis@denix.org>2009-03-17 14:32:59 -0400
commit709c4d66e0b107ca606941b988bad717c0b45d9b (patch)
tree37ee08b1eb308f3b2b6426d5793545c38396b838 /recipes/linux/linux-mtx-1-2.4.27/01-mtd-2004-01-27.diff
parentfa6cd5a3b993f16c27de4ff82b42684516d433ba (diff)
downloadopenembedded-709c4d66e0b107ca606941b988bad717c0b45d9b.tar.gz
rename packages/ to recipes/ per earlier agreement
See links below for more details: http://thread.gmane.org/gmane.comp.handhelds.openembedded/21326 http://thread.gmane.org/gmane.comp.handhelds.openembedded/21816 Signed-off-by: Denys Dmytriyenko <denis@denix.org> Acked-by: Mike Westerhof <mwester@dls.net> Acked-by: Philip Balister <philip@balister.org> Acked-by: Khem Raj <raj.khem@gmail.com> Acked-by: Marcin Juszkiewicz <hrw@openembedded.org> Acked-by: Koen Kooi <koen@openembedded.org> Acked-by: Frans Meulenbroeks <fransmeulenbroeks@gmail.com>
Diffstat (limited to 'recipes/linux/linux-mtx-1-2.4.27/01-mtd-2004-01-27.diff')
-rw-r--r--recipes/linux/linux-mtx-1-2.4.27/01-mtd-2004-01-27.diff51503
1 files changed, 51503 insertions, 0 deletions
diff --git a/recipes/linux/linux-mtx-1-2.4.27/01-mtd-2004-01-27.diff b/recipes/linux/linux-mtx-1-2.4.27/01-mtd-2004-01-27.diff
new file mode 100644
index 0000000000..6c3b3b9acb
--- /dev/null
+++ b/recipes/linux/linux-mtx-1-2.4.27/01-mtd-2004-01-27.diff
@@ -0,0 +1,51503 @@
+diff -Nurb linux-mips-2.4.27/drivers/mtd/Config.in linux/drivers/mtd/Config.in
+--- linux-mips-2.4.27/drivers/mtd/Config.in 2003-02-26 01:53:49.000000000 +0100
++++ linux/drivers/mtd/Config.in 2004-11-19 10:25:11.607244176 +0100
+@@ -1,5 +1,5 @@
+
+-# $Id: Config.in,v 1.74 2002/04/23 13:52:14 mag Exp $
++# $Id: Config.in,v 1.75 2003/05/23 11:38:29 dwmw2 Exp $
+
+ mainmenu_option next_comment
+ comment 'Memory Technology Devices (MTD)'
+@@ -30,6 +30,7 @@
+ if [ "$CONFIG_NFTL" = "y" -o "$CONFIG_NFTL" = "m" ]; then
+ bool ' Write support for NFTL (BETA)' CONFIG_NFTL_RW
+ fi
++ dep_tristate ' INFTL (Inverse NAND Flash Translation Layer) support' CONFIG_INFTL $CONFIG_MTD
+
+ source drivers/mtd/chips/Config.in
+
+diff -Nurb linux-mips-2.4.27/drivers/mtd/Makefile linux/drivers/mtd/Makefile
+--- linux-mips-2.4.27/drivers/mtd/Makefile 2003-02-26 01:53:49.000000000 +0100
++++ linux/drivers/mtd/Makefile 2004-11-19 10:25:11.608244024 +0100
+@@ -1,30 +1,7 @@
+ #
+ # Makefile for the memory technology device drivers.
+ #
+-# Note! Dependencies are done automagically by 'make dep', which also
+-# removes any old dependencies. DON'T put your own dependencies here
+-# unless it's something special (ie not a .c file).
+-#
+-# Note 2! The CFLAGS definitions are now inherited from the
+-# parent makes..
+-#
+-# $Id: Makefile,v 1.65 2002/03/22 07:10:34 dwmw2 Exp $
+-
+-
+-obj-y += chips/chipslink.o maps/mapslink.o \
+- devices/devlink.o nand/nandlink.o
+-obj-m :=
+-obj-n :=
+-obj- :=
+-
+-O_TARGET := mtdlink.o
+-
+-export-objs := mtdcore.o mtdpart.o redboot.o cmdlinepart.o afs.o mtdconcat.o
+-list-multi := nftl.o
+-
+-mod-subdirs :=
+-subdir-y := chips maps devices nand
+-subdir-m := $(subdir-y)
++# $Id: Makefile.common,v 1.2 2003/05/23 11:38:29 dwmw2 Exp $
+
+ # *** BIG UGLY NOTE ***
+ #
+@@ -52,15 +29,44 @@
+
+ # 'Users' - code which presents functionality to userspace.
+ obj-$(CONFIG_MTD_CHAR) += mtdchar.o
+-obj-$(CONFIG_MTD_BLOCK) += mtdblock.o
+-obj-$(CONFIG_MTD_BLOCK_RO) += mtdblock_ro.o
+-obj-$(CONFIG_FTL) += ftl.o
+-obj-$(CONFIG_NFTL) += nftl.o
++obj-$(CONFIG_MTD_BLOCK) += mtdblock.o mtd_blkdevs.o
++obj-$(CONFIG_MTD_BLOCK_RO) += mtdblock_ro.o mtd_blkdevs.o
++obj-$(CONFIG_FTL) += ftl.o mtd_blkdevs.o
++obj-$(CONFIG_NFTL) += nftl.o mtd_blkdevs.o
++obj-$(CONFIG_INFTL) += inftl.o mtd_blkdevs.o
+
+ nftl-objs := nftlcore.o nftlmount.o
++inftl-objs := inftlcore.o inftlmount.o
++
++ifeq ($(PATCHLEVEL),4)
++
++export-objs := mtdcore.o mtdpart.o redboot.o cmdlinepart.o afs.o \
++ mtdconcat.o mtd_blkdevs-24.o
++
++mtd_blkdevs-objs := mtd_blkdevs-24.o
++
++obj-y += chips/chipslink.o maps/mapslink.o \
++ devices/devlink.o nand/nandlink.o
++
++O_TARGET := mtdlink.o
++
++list-multi := nftl.o inftl.o mtd_blkdevs.o
++
++mod-subdirs :=
++subdir-y := chips maps devices nand
++subdir-m := $(subdir-y)
+
+ include $(TOPDIR)/Rules.make
+
+ nftl.o: $(nftl-objs)
+ $(LD) -r -o $@ $(nftl-objs)
+
++inftl.o: $(inftl-objs)
++ $(LD) -r -o $@ $(inftl-objs)
++
++mtd_blkdevs.o: $(mtd_blkdevs-objs)
++ $(LD) -r -o $@ $(mtd_blkdevs-objs)
++
++else
++obj-y += chips/ maps/ devices/ nand/
++endif
+diff -Nurb linux-mips-2.4.27/drivers/mtd/afs.c linux/drivers/mtd/afs.c
+--- linux-mips-2.4.27/drivers/mtd/afs.c 2003-02-26 01:53:49.000000000 +0100
++++ linux/drivers/mtd/afs.c 2004-11-19 10:25:11.610243720 +0100
+@@ -21,7 +21,7 @@
+ This is access code for flashes using ARM's flash partitioning
+ standards.
+
+- $Id: afs.c,v 1.8 2002/05/04 08:49:09 rmk Exp $
++ $Id: afs.c,v 1.12 2003/06/13 15:31:06 rmk Exp $
+
+ ======================================================================*/
+
+@@ -76,17 +76,19 @@
+ return ret;
+ }
+
++ ret = 1;
++
+ /*
+ * Does it contain the magic number?
+ */
+ if (fs.signature != 0xa0ffff9f)
+- ret = 1;
++ ret = 0;
+
+ /*
+ * Don't touch the SIB.
+ */
+ if (fs.type == 2)
+- ret = 1;
++ ret = 0;
+
+ *iis_start = fs.image_info_base & mask;
+ *img_start = fs.image_start & mask;
+@@ -96,14 +98,14 @@
+ * be located after the footer structure.
+ */
+ if (*iis_start >= ptr)
+- ret = 1;
++ ret = 0;
+
+ /*
+ * Check the start of this image. The image
+ * data can not be located after this block.
+ */
+ if (*img_start > off)
+- ret = 1;
++ ret = 0;
+
+ return ret;
+ }
+@@ -125,7 +127,9 @@
+ return ret;
+ }
+
+-int parse_afs_partitions(struct mtd_info *mtd, struct mtd_partition **pparts)
++static int parse_afs_partitions(struct mtd_info *mtd,
++ struct mtd_partition **pparts,
++ unsigned long origin)
+ {
+ struct mtd_partition *parts;
+ u_int mask, off, idx, sz;
+@@ -150,7 +154,7 @@
+ ret = afs_read_footer(mtd, &img_ptr, &iis_ptr, off, mask);
+ if (ret < 0)
+ break;
+- if (ret == 1)
++ if (ret == 0)
+ continue;
+
+ ret = afs_read_iis(mtd, &iis, iis_ptr);
+@@ -183,7 +187,7 @@
+ ret = afs_read_footer(mtd, &img_ptr, &iis_ptr, off, mask);
+ if (ret < 0)
+ break;
+- if (ret == 1)
++ if (ret == 0)
+ continue;
+
+ /* Read the image info block */
+@@ -227,7 +231,25 @@
+ return idx ? idx : ret;
+ }
+
+-EXPORT_SYMBOL(parse_afs_partitions);
++static struct mtd_part_parser afs_parser = {
++ .owner = THIS_MODULE,
++ .parse_fn = parse_afs_partitions,
++ .name = "afs",
++};
++
++static int __init afs_parser_init(void)
++{
++ return register_mtd_parser(&afs_parser);
++}
++
++static void __exit afs_parser_exit(void)
++{
++ deregister_mtd_parser(&afs_parser);
++}
++
++module_init(afs_parser_init);
++module_exit(afs_parser_exit);
++
+
+ MODULE_AUTHOR("ARM Ltd");
+ MODULE_DESCRIPTION("ARM Firmware Suite partition parser");
+diff -Nurb linux-mips-2.4.27/drivers/mtd/chips/Config.in linux/drivers/mtd/chips/Config.in
+--- linux-mips-2.4.27/drivers/mtd/chips/Config.in 2003-02-26 01:53:49.000000000 +0100
++++ linux/drivers/mtd/chips/Config.in 2004-11-19 10:25:11.712228216 +0100
+@@ -1,6 +1,6 @@
+ # drivers/mtd/chips/Config.in
+
+-# $Id: Config.in,v 1.16 2002/09/03 13:30:43 joern Exp $
++# $Id: Config.in,v 1.17 2003/09/25 14:40:34 thayne Exp $
+
+ mainmenu_option next_comment
+
+@@ -11,13 +11,12 @@
+
+ if [ "$CONFIG_MTD_CFI" = "y" -o "$CONFIG_MTD_JEDECPROBE" = "y" ]; then
+ define_bool CONFIG_MTD_GEN_PROBE y
+-else
+- if [ "$CONFIG_MTD_CFI" = "m" -o "$CONFIG_MTD_JEDECPROBE" = "m" ]; then
++elif [ "$CONFIG_MTD_CFI" = "m" -o "$CONFIG_MTD_JEDECPROBE" = "m" ]; then
+ define_bool CONFIG_MTD_GEN_PROBE m
+- else
++else
+ define_bool CONFIG_MTD_GEN_PROBE n
+- fi
+ fi
++
+ if [ "$CONFIG_MTD_GEN_PROBE" = "y" -o "$CONFIG_MTD_GEN_PROBE" = "m" ]; then
+ bool ' Flash chip driver advanced configuration options' CONFIG_MTD_CFI_ADV_OPTIONS
+ if [ "$CONFIG_MTD_CFI_ADV_OPTIONS" = "y" ]; then
+@@ -44,8 +43,27 @@
+ fi
+ dep_tristate ' Support for Intel/Sharp flash chips' CONFIG_MTD_CFI_INTELEXT $CONFIG_MTD_GEN_PROBE
+ dep_tristate ' Support for AMD/Fujitsu flash chips' CONFIG_MTD_CFI_AMDSTD $CONFIG_MTD_GEN_PROBE
++if [ "$CONFIG_MTD_CFI_AMDSTD" = "y" -o "$CONFIG_MTD_CFI_AMDSTD" = "m" ]; then
++ bool ' Retry failed commands (erase/program)' CONFIG_MTD_CFI_AMDSTD_RETRY n
++ if [ "$CONFIG_MTD_CFI_AMDSTD_RETRY" = "y" ]; then
++ int ' Max retries of failed commands (erase/program)' CONFIG_MTD_CFI_AMDSTD_RETRY_MAX 0
++ fi
++fi
++
+ dep_tristate ' Support for ST (Advanced Architecture) flash chips' CONFIG_MTD_CFI_STAA $CONFIG_MTD_GEN_PROBE
+
++if [ "$CONFIG_MTD_CFI_INTELEXT" = "y" \
++ -o "$CONFIG_MTD_CFI_AMDSTD" = "y" \
++ -o "$CONFIG_MTD_CFI_STAA" = "y" ]; then
++ define_bool CONFIG_MTD_CFI_UTIL y
++elif [ "$CONFIG_MTD_CFI_INTELEXT" = "m" \
++ -o "$CONFIG_MTD_CFI_AMDSTD" = "m" \
++ -o "$CONFIG_MTD_CFI_STAA" = "m" ]; then
++ define_bool CONFIG_MTD_CFI_UTIL m
++else
++ define_bool CONFIG_MTD_CFI_UTIL n
++fi
++
+ dep_tristate ' Support for RAM chips in bus mapping' CONFIG_MTD_RAM $CONFIG_MTD
+ dep_tristate ' Support for ROM chips in bus mapping' CONFIG_MTD_ROM $CONFIG_MTD
+ dep_tristate ' Support for absent chips in bus mapping' CONFIG_MTD_ABSENT $CONFIG_MTD
+diff -Nurb linux-mips-2.4.27/drivers/mtd/chips/Makefile linux/drivers/mtd/chips/Makefile
+--- linux-mips-2.4.27/drivers/mtd/chips/Makefile 2003-07-05 05:23:38.000000000 +0200
++++ linux/drivers/mtd/chips/Makefile 2004-11-19 10:25:11.714227912 +0100
+@@ -1,11 +1,12 @@
+ #
+ # linux/drivers/chips/Makefile
+ #
+-# $Id: Makefile,v 1.8 2002/01/10 20:27:40 eric Exp $
++# $Id: Makefile.common,v 1.3 2003/09/25 14:40:34 thayne Exp $
+
++ifeq ($(PATCHLEVEL),4)
+ O_TARGET := chipslink.o
+-
+-export-objs := chipreg.o gen_probe.o
++export-objs := chipreg.o gen_probe.o cfi_util.o
++endif
+
+ # *** BIG UGLY NOTE ***
+ #
+@@ -17,6 +18,7 @@
+ obj-$(CONFIG_MTD) += chipreg.o
+ obj-$(CONFIG_MTD_AMDSTD) += amd_flash.o
+ obj-$(CONFIG_MTD_CFI) += cfi_probe.o
++obj-$(CONFIG_MTD_CFI_UTIL) += cfi_util.o
+ obj-$(CONFIG_MTD_CFI_STAA) += cfi_cmdset_0020.o
+ obj-$(CONFIG_MTD_CFI_AMDSTD) += cfi_cmdset_0002.o
+ obj-$(CONFIG_MTD_CFI_INTELEXT) += cfi_cmdset_0001.o
+@@ -28,4 +30,4 @@
+ obj-$(CONFIG_MTD_SHARP) += sharp.o
+ obj-$(CONFIG_MTD_ABSENT) += map_absent.o
+
+-include $(TOPDIR)/Rules.make
++-include $(TOPDIR)/Rules.make
+diff -Nurb linux-mips-2.4.27/drivers/mtd/chips/amd_flash.c linux/drivers/mtd/chips/amd_flash.c
+--- linux-mips-2.4.27/drivers/mtd/chips/amd_flash.c 2003-02-26 01:53:49.000000000 +0100
++++ linux/drivers/mtd/chips/amd_flash.c 2004-11-19 10:25:11.722226696 +0100
+@@ -3,7 +3,7 @@
+ *
+ * Author: Jonas Holmberg <jonas.holmberg@axis.com>
+ *
+- * $Id: amd_flash.c,v 1.19 2003/01/24 13:30:11 dwmw2 Exp $
++ * $Id: amd_flash.c,v 1.23 2003/06/12 09:24:13 dwmw2 Exp $
+ *
+ * Copyright (c) 2001 Axis Communications AB
+ *
+@@ -19,6 +19,7 @@
+ #include <linux/slab.h>
+ #include <linux/delay.h>
+ #include <linux/interrupt.h>
++#include <linux/init.h>
+ #include <linux/mtd/map.h>
+ #include <linux/mtd/mtd.h>
+ #include <linux/mtd/flashchip.h>
+@@ -125,10 +126,10 @@
+
+
+ static struct mtd_chip_driver amd_flash_chipdrv = {
+- probe: amd_flash_probe,
+- destroy: amd_flash_destroy,
+- name: "amd_flash",
+- module: THIS_MODULE
++ .probe = amd_flash_probe,
++ .destroy = amd_flash_destroy,
++ .name = "amd_flash",
++ .module = THIS_MODULE
+ };
+
+
+@@ -140,11 +141,11 @@
+ static inline __u32 wide_read(struct map_info *map, __u32 addr)
+ {
+ if (map->buswidth == 1) {
+- return map->read8(map, addr);
++ return map_read8(map, addr);
+ } else if (map->buswidth == 2) {
+- return map->read16(map, addr);
++ return map_read16(map, addr);
+ } else if (map->buswidth == 4) {
+- return map->read32(map, addr);
++ return map_read32(map, addr);
+ }
+
+ return 0;
+@@ -153,11 +154,11 @@
+ static inline void wide_write(struct map_info *map, __u32 val, __u32 addr)
+ {
+ if (map->buswidth == 1) {
+- map->write8(map, val, addr);
++ map_write8(map, val, addr);
+ } else if (map->buswidth == 2) {
+- map->write16(map, val, addr);
++ map_write16(map, val, addr);
+ } else if (map->buswidth == 4) {
+- map->write32(map, val, addr);
++ map_write32(map, val, addr);
+ }
+ }
+
+@@ -424,231 +425,228 @@
+
+ static struct mtd_info *amd_flash_probe(struct map_info *map)
+ {
+- /* Keep this table on the stack so that it gets deallocated after the
+- * probe is done.
+- */
+- const struct amd_flash_info table[] = {
++ static const struct amd_flash_info table[] = {
+ {
+- mfr_id: MANUFACTURER_AMD,
+- dev_id: AM29LV160DT,
+- name: "AMD AM29LV160DT",
+- size: 0x00200000,
+- numeraseregions: 4,
+- regions: {
+- { offset: 0x000000, erasesize: 0x10000, numblocks: 31 },
+- { offset: 0x1F0000, erasesize: 0x08000, numblocks: 1 },
+- { offset: 0x1F8000, erasesize: 0x02000, numblocks: 2 },
+- { offset: 0x1FC000, erasesize: 0x04000, numblocks: 1 }
++ .mfr_id = MANUFACTURER_AMD,
++ .dev_id = AM29LV160DT,
++ .name = "AMD AM29LV160DT",
++ .size = 0x00200000,
++ .numeraseregions = 4,
++ .regions = {
++ { .offset = 0x000000, .erasesize = 0x10000, .numblocks = 31 },
++ { .offset = 0x1F0000, .erasesize = 0x08000, .numblocks = 1 },
++ { .offset = 0x1F8000, .erasesize = 0x02000, .numblocks = 2 },
++ { .offset = 0x1FC000, .erasesize = 0x04000, .numblocks = 1 }
+ }
+ }, {
+- mfr_id: MANUFACTURER_AMD,
+- dev_id: AM29LV160DB,
+- name: "AMD AM29LV160DB",
+- size: 0x00200000,
+- numeraseregions: 4,
+- regions: {
+- { offset: 0x000000, erasesize: 0x04000, numblocks: 1 },
+- { offset: 0x004000, erasesize: 0x02000, numblocks: 2 },
+- { offset: 0x008000, erasesize: 0x08000, numblocks: 1 },
+- { offset: 0x010000, erasesize: 0x10000, numblocks: 31 }
++ .mfr_id = MANUFACTURER_AMD,
++ .dev_id = AM29LV160DB,
++ .name = "AMD AM29LV160DB",
++ .size = 0x00200000,
++ .numeraseregions = 4,
++ .regions = {
++ { .offset = 0x000000, .erasesize = 0x04000, .numblocks = 1 },
++ { .offset = 0x004000, .erasesize = 0x02000, .numblocks = 2 },
++ { .offset = 0x008000, .erasesize = 0x08000, .numblocks = 1 },
++ { .offset = 0x010000, .erasesize = 0x10000, .numblocks = 31 }
+ }
+ }, {
+- mfr_id: MANUFACTURER_TOSHIBA,
+- dev_id: TC58FVT160,
+- name: "Toshiba TC58FVT160",
+- size: 0x00200000,
+- numeraseregions: 4,
+- regions: {
+- { offset: 0x000000, erasesize: 0x10000, numblocks: 31 },
+- { offset: 0x1F0000, erasesize: 0x08000, numblocks: 1 },
+- { offset: 0x1F8000, erasesize: 0x02000, numblocks: 2 },
+- { offset: 0x1FC000, erasesize: 0x04000, numblocks: 1 }
++ .mfr_id = MANUFACTURER_TOSHIBA,
++ .dev_id = TC58FVT160,
++ .name = "Toshiba TC58FVT160",
++ .size = 0x00200000,
++ .numeraseregions = 4,
++ .regions = {
++ { .offset = 0x000000, .erasesize = 0x10000, .numblocks = 31 },
++ { .offset = 0x1F0000, .erasesize = 0x08000, .numblocks = 1 },
++ { .offset = 0x1F8000, .erasesize = 0x02000, .numblocks = 2 },
++ { .offset = 0x1FC000, .erasesize = 0x04000, .numblocks = 1 }
+ }
+ }, {
+- mfr_id: MANUFACTURER_FUJITSU,
+- dev_id: MBM29LV160TE,
+- name: "Fujitsu MBM29LV160TE",
+- size: 0x00200000,
+- numeraseregions: 4,
+- regions: {
+- { offset: 0x000000, erasesize: 0x10000, numblocks: 31 },
+- { offset: 0x1F0000, erasesize: 0x08000, numblocks: 1 },
+- { offset: 0x1F8000, erasesize: 0x02000, numblocks: 2 },
+- { offset: 0x1FC000, erasesize: 0x04000, numblocks: 1 }
++ .mfr_id = MANUFACTURER_FUJITSU,
++ .dev_id = MBM29LV160TE,
++ .name = "Fujitsu MBM29LV160TE",
++ .size = 0x00200000,
++ .numeraseregions = 4,
++ .regions = {
++ { .offset = 0x000000, .erasesize = 0x10000, .numblocks = 31 },
++ { .offset = 0x1F0000, .erasesize = 0x08000, .numblocks = 1 },
++ { .offset = 0x1F8000, .erasesize = 0x02000, .numblocks = 2 },
++ { .offset = 0x1FC000, .erasesize = 0x04000, .numblocks = 1 }
+ }
+ }, {
+- mfr_id: MANUFACTURER_TOSHIBA,
+- dev_id: TC58FVB160,
+- name: "Toshiba TC58FVB160",
+- size: 0x00200000,
+- numeraseregions: 4,
+- regions: {
+- { offset: 0x000000, erasesize: 0x04000, numblocks: 1 },
+- { offset: 0x004000, erasesize: 0x02000, numblocks: 2 },
+- { offset: 0x008000, erasesize: 0x08000, numblocks: 1 },
+- { offset: 0x010000, erasesize: 0x10000, numblocks: 31 }
++ .mfr_id = MANUFACTURER_TOSHIBA,
++ .dev_id = TC58FVB160,
++ .name = "Toshiba TC58FVB160",
++ .size = 0x00200000,
++ .numeraseregions = 4,
++ .regions = {
++ { .offset = 0x000000, .erasesize = 0x04000, .numblocks = 1 },
++ { .offset = 0x004000, .erasesize = 0x02000, .numblocks = 2 },
++ { .offset = 0x008000, .erasesize = 0x08000, .numblocks = 1 },
++ { .offset = 0x010000, .erasesize = 0x10000, .numblocks = 31 }
+ }
+ }, {
+- mfr_id: MANUFACTURER_FUJITSU,
+- dev_id: MBM29LV160BE,
+- name: "Fujitsu MBM29LV160BE",
+- size: 0x00200000,
+- numeraseregions: 4,
+- regions: {
+- { offset: 0x000000, erasesize: 0x04000, numblocks: 1 },
+- { offset: 0x004000, erasesize: 0x02000, numblocks: 2 },
+- { offset: 0x008000, erasesize: 0x08000, numblocks: 1 },
+- { offset: 0x010000, erasesize: 0x10000, numblocks: 31 }
++ .mfr_id = MANUFACTURER_FUJITSU,
++ .dev_id = MBM29LV160BE,
++ .name = "Fujitsu MBM29LV160BE",
++ .size = 0x00200000,
++ .numeraseregions = 4,
++ .regions = {
++ { .offset = 0x000000, .erasesize = 0x04000, .numblocks = 1 },
++ { .offset = 0x004000, .erasesize = 0x02000, .numblocks = 2 },
++ { .offset = 0x008000, .erasesize = 0x08000, .numblocks = 1 },
++ { .offset = 0x010000, .erasesize = 0x10000, .numblocks = 31 }
+ }
+ }, {
+- mfr_id: MANUFACTURER_AMD,
+- dev_id: AM29LV800BB,
+- name: "AMD AM29LV800BB",
+- size: 0x00100000,
+- numeraseregions: 4,
+- regions: {
+- { offset: 0x000000, erasesize: 0x04000, numblocks: 1 },
+- { offset: 0x004000, erasesize: 0x02000, numblocks: 2 },
+- { offset: 0x008000, erasesize: 0x08000, numblocks: 1 },
+- { offset: 0x010000, erasesize: 0x10000, numblocks: 15 }
++ .mfr_id = MANUFACTURER_AMD,
++ .dev_id = AM29LV800BB,
++ .name = "AMD AM29LV800BB",
++ .size = 0x00100000,
++ .numeraseregions = 4,
++ .regions = {
++ { .offset = 0x000000, .erasesize = 0x04000, .numblocks = 1 },
++ { .offset = 0x004000, .erasesize = 0x02000, .numblocks = 2 },
++ { .offset = 0x008000, .erasesize = 0x08000, .numblocks = 1 },
++ { .offset = 0x010000, .erasesize = 0x10000, .numblocks = 15 }
+ }
+ }, {
+- mfr_id: MANUFACTURER_AMD,
+- dev_id: AM29F800BB,
+- name: "AMD AM29F800BB",
+- size: 0x00100000,
+- numeraseregions: 4,
+- regions: {
+- { offset: 0x000000, erasesize: 0x04000, numblocks: 1 },
+- { offset: 0x004000, erasesize: 0x02000, numblocks: 2 },
+- { offset: 0x008000, erasesize: 0x08000, numblocks: 1 },
+- { offset: 0x010000, erasesize: 0x10000, numblocks: 15 }
++ .mfr_id = MANUFACTURER_AMD,
++ .dev_id = AM29F800BB,
++ .name = "AMD AM29F800BB",
++ .size = 0x00100000,
++ .numeraseregions = 4,
++ .regions = {
++ { .offset = 0x000000, .erasesize = 0x04000, .numblocks = 1 },
++ { .offset = 0x004000, .erasesize = 0x02000, .numblocks = 2 },
++ { .offset = 0x008000, .erasesize = 0x08000, .numblocks = 1 },
++ { .offset = 0x010000, .erasesize = 0x10000, .numblocks = 15 }
+ }
+ }, {
+- mfr_id: MANUFACTURER_AMD,
+- dev_id: AM29LV800BT,
+- name: "AMD AM29LV800BT",
+- size: 0x00100000,
+- numeraseregions: 4,
+- regions: {
+- { offset: 0x000000, erasesize: 0x10000, numblocks: 15 },
+- { offset: 0x0F0000, erasesize: 0x08000, numblocks: 1 },
+- { offset: 0x0F8000, erasesize: 0x02000, numblocks: 2 },
+- { offset: 0x0FC000, erasesize: 0x04000, numblocks: 1 }
++ .mfr_id = MANUFACTURER_AMD,
++ .dev_id = AM29LV800BT,
++ .name = "AMD AM29LV800BT",
++ .size = 0x00100000,
++ .numeraseregions = 4,
++ .regions = {
++ { .offset = 0x000000, .erasesize = 0x10000, .numblocks = 15 },
++ { .offset = 0x0F0000, .erasesize = 0x08000, .numblocks = 1 },
++ { .offset = 0x0F8000, .erasesize = 0x02000, .numblocks = 2 },
++ { .offset = 0x0FC000, .erasesize = 0x04000, .numblocks = 1 }
+ }
+ }, {
+- mfr_id: MANUFACTURER_AMD,
+- dev_id: AM29F800BT,
+- name: "AMD AM29F800BT",
+- size: 0x00100000,
+- numeraseregions: 4,
+- regions: {
+- { offset: 0x000000, erasesize: 0x10000, numblocks: 15 },
+- { offset: 0x0F0000, erasesize: 0x08000, numblocks: 1 },
+- { offset: 0x0F8000, erasesize: 0x02000, numblocks: 2 },
+- { offset: 0x0FC000, erasesize: 0x04000, numblocks: 1 }
++ .mfr_id = MANUFACTURER_AMD,
++ .dev_id = AM29F800BT,
++ .name = "AMD AM29F800BT",
++ .size = 0x00100000,
++ .numeraseregions = 4,
++ .regions = {
++ { .offset = 0x000000, .erasesize = 0x10000, .numblocks = 15 },
++ { .offset = 0x0F0000, .erasesize = 0x08000, .numblocks = 1 },
++ { .offset = 0x0F8000, .erasesize = 0x02000, .numblocks = 2 },
++ { .offset = 0x0FC000, .erasesize = 0x04000, .numblocks = 1 }
+ }
+ }, {
+- mfr_id: MANUFACTURER_AMD,
+- dev_id: AM29LV800BB,
+- name: "AMD AM29LV800BB",
+- size: 0x00100000,
+- numeraseregions: 4,
+- regions: {
+- { offset: 0x000000, erasesize: 0x10000, numblocks: 15 },
+- { offset: 0x0F0000, erasesize: 0x08000, numblocks: 1 },
+- { offset: 0x0F8000, erasesize: 0x02000, numblocks: 2 },
+- { offset: 0x0FC000, erasesize: 0x04000, numblocks: 1 }
++ .mfr_id = MANUFACTURER_AMD,
++ .dev_id = AM29LV800BB,
++ .name = "AMD AM29LV800BB",
++ .size = 0x00100000,
++ .numeraseregions = 4,
++ .regions = {
++ { .offset = 0x000000, .erasesize = 0x10000, .numblocks = 15 },
++ { .offset = 0x0F0000, .erasesize = 0x08000, .numblocks = 1 },
++ { .offset = 0x0F8000, .erasesize = 0x02000, .numblocks = 2 },
++ { .offset = 0x0FC000, .erasesize = 0x04000, .numblocks = 1 }
+ }
+ }, {
+- mfr_id: MANUFACTURER_FUJITSU,
+- dev_id: MBM29LV800BB,
+- name: "Fujitsu MBM29LV800BB",
+- size: 0x00100000,
+- numeraseregions: 4,
+- regions: {
+- { offset: 0x000000, erasesize: 0x04000, numblocks: 1 },
+- { offset: 0x004000, erasesize: 0x02000, numblocks: 2 },
+- { offset: 0x008000, erasesize: 0x08000, numblocks: 1 },
+- { offset: 0x010000, erasesize: 0x10000, numblocks: 15 }
++ .mfr_id = MANUFACTURER_FUJITSU,
++ .dev_id = MBM29LV800BB,
++ .name = "Fujitsu MBM29LV800BB",
++ .size = 0x00100000,
++ .numeraseregions = 4,
++ .regions = {
++ { .offset = 0x000000, .erasesize = 0x04000, .numblocks = 1 },
++ { .offset = 0x004000, .erasesize = 0x02000, .numblocks = 2 },
++ { .offset = 0x008000, .erasesize = 0x08000, .numblocks = 1 },
++ { .offset = 0x010000, .erasesize = 0x10000, .numblocks = 15 }
+ }
+ }, {
+- mfr_id: MANUFACTURER_ST,
+- dev_id: M29W800T,
+- name: "ST M29W800T",
+- size: 0x00100000,
+- numeraseregions: 4,
+- regions: {
+- { offset: 0x000000, erasesize: 0x10000, numblocks: 15 },
+- { offset: 0x0F0000, erasesize: 0x08000, numblocks: 1 },
+- { offset: 0x0F8000, erasesize: 0x02000, numblocks: 2 },
+- { offset: 0x0FC000, erasesize: 0x04000, numblocks: 1 }
++ .mfr_id = MANUFACTURER_ST,
++ .dev_id = M29W800T,
++ .name = "ST M29W800T",
++ .size = 0x00100000,
++ .numeraseregions = 4,
++ .regions = {
++ { .offset = 0x000000, .erasesize = 0x10000, .numblocks = 15 },
++ { .offset = 0x0F0000, .erasesize = 0x08000, .numblocks = 1 },
++ { .offset = 0x0F8000, .erasesize = 0x02000, .numblocks = 2 },
++ { .offset = 0x0FC000, .erasesize = 0x04000, .numblocks = 1 }
+ }
+ }, {
+- mfr_id: MANUFACTURER_ST,
+- dev_id: M29W160DT,
+- name: "ST M29W160DT",
+- size: 0x00200000,
+- numeraseregions: 4,
+- regions: {
+- { offset: 0x000000, erasesize: 0x10000, numblocks: 31 },
+- { offset: 0x1F0000, erasesize: 0x08000, numblocks: 1 },
+- { offset: 0x1F8000, erasesize: 0x02000, numblocks: 2 },
+- { offset: 0x1FC000, erasesize: 0x04000, numblocks: 1 }
++ .mfr_id = MANUFACTURER_ST,
++ .dev_id = M29W160DT,
++ .name = "ST M29W160DT",
++ .size = 0x00200000,
++ .numeraseregions = 4,
++ .regions = {
++ { .offset = 0x000000, .erasesize = 0x10000, .numblocks = 31 },
++ { .offset = 0x1F0000, .erasesize = 0x08000, .numblocks = 1 },
++ { .offset = 0x1F8000, .erasesize = 0x02000, .numblocks = 2 },
++ { .offset = 0x1FC000, .erasesize = 0x04000, .numblocks = 1 }
+ }
+ }, {
+- mfr_id: MANUFACTURER_ST,
+- dev_id: M29W160DB,
+- name: "ST M29W160DB",
+- size: 0x00200000,
+- numeraseregions: 4,
+- regions: {
+- { offset: 0x000000, erasesize: 0x04000, numblocks: 1 },
+- { offset: 0x004000, erasesize: 0x02000, numblocks: 2 },
+- { offset: 0x008000, erasesize: 0x08000, numblocks: 1 },
+- { offset: 0x010000, erasesize: 0x10000, numblocks: 31 }
++ .mfr_id = MANUFACTURER_ST,
++ .dev_id = M29W160DB,
++ .name = "ST M29W160DB",
++ .size = 0x00200000,
++ .numeraseregions = 4,
++ .regions = {
++ { .offset = 0x000000, .erasesize = 0x04000, .numblocks = 1 },
++ { .offset = 0x004000, .erasesize = 0x02000, .numblocks = 2 },
++ { .offset = 0x008000, .erasesize = 0x08000, .numblocks = 1 },
++ { .offset = 0x010000, .erasesize = 0x10000, .numblocks = 31 }
+ }
+ }, {
+- mfr_id: MANUFACTURER_AMD,
+- dev_id: AM29BDS323D,
+- name: "AMD AM29BDS323D",
+- size: 0x00400000,
+- numeraseregions: 3,
+- regions: {
+- { offset: 0x000000, erasesize: 0x10000, numblocks: 48 },
+- { offset: 0x300000, erasesize: 0x10000, numblocks: 15 },
+- { offset: 0x3f0000, erasesize: 0x02000, numblocks: 8 },
++ .mfr_id = MANUFACTURER_AMD,
++ .dev_id = AM29BDS323D,
++ .name = "AMD AM29BDS323D",
++ .size = 0x00400000,
++ .numeraseregions = 3,
++ .regions = {
++ { .offset = 0x000000, .erasesize = 0x10000, .numblocks = 48 },
++ { .offset = 0x300000, .erasesize = 0x10000, .numblocks = 15 },
++ { .offset = 0x3f0000, .erasesize = 0x02000, .numblocks = 8 },
+ }
+ }, {
+- mfr_id: MANUFACTURER_AMD,
+- dev_id: AM29BDS643D,
+- name: "AMD AM29BDS643D",
+- size: 0x00800000,
+- numeraseregions: 3,
+- regions: {
+- { offset: 0x000000, erasesize: 0x10000, numblocks: 96 },
+- { offset: 0x600000, erasesize: 0x10000, numblocks: 31 },
+- { offset: 0x7f0000, erasesize: 0x02000, numblocks: 8 },
++ .mfr_id = MANUFACTURER_AMD,
++ .dev_id = AM29BDS643D,
++ .name = "AMD AM29BDS643D",
++ .size = 0x00800000,
++ .numeraseregions = 3,
++ .regions = {
++ { .offset = 0x000000, .erasesize = 0x10000, .numblocks = 96 },
++ { .offset = 0x600000, .erasesize = 0x10000, .numblocks = 31 },
++ { .offset = 0x7f0000, .erasesize = 0x02000, .numblocks = 8 },
+ }
+ }, {
+- mfr_id: MANUFACTURER_ATMEL,
+- dev_id: AT49xV16x,
+- name: "Atmel AT49xV16x",
+- size: 0x00200000,
+- numeraseregions: 2,
+- regions: {
+- { offset: 0x000000, erasesize: 0x02000, numblocks: 8 },
+- { offset: 0x010000, erasesize: 0x10000, numblocks: 31 }
++ .mfr_id = MANUFACTURER_ATMEL,
++ .dev_id = AT49xV16x,
++ .name = "Atmel AT49xV16x",
++ .size = 0x00200000,
++ .numeraseregions = 2,
++ .regions = {
++ { .offset = 0x000000, .erasesize = 0x02000, .numblocks = 8 },
++ { .offset = 0x010000, .erasesize = 0x10000, .numblocks = 31 }
+ }
+ }, {
+- mfr_id: MANUFACTURER_ATMEL,
+- dev_id: AT49xV16xT,
+- name: "Atmel AT49xV16xT",
+- size: 0x00200000,
+- numeraseregions: 2,
+- regions: {
+- { offset: 0x000000, erasesize: 0x10000, numblocks: 31 },
+- { offset: 0x1F0000, erasesize: 0x02000, numblocks: 8 }
++ .mfr_id = MANUFACTURER_ATMEL,
++ .dev_id = AT49xV16xT,
++ .name = "Atmel AT49xV16xT",
++ .size = 0x00200000,
++ .numeraseregions = 2,
++ .regions = {
++ { .offset = 0x000000, .erasesize = 0x10000, .numblocks = 31 },
++ { .offset = 0x1F0000, .erasesize = 0x02000, .numblocks = 8 }
+ }
+ }
+ };
+@@ -822,7 +820,7 @@
+
+ chip->state = FL_READY;
+
+- map->copy_from(map, buf, adr, len);
++ map_copy_from(map, buf, adr, len);
+
+ wake_up(&chip->wq);
+ spin_unlock_bh(chip->mutex);
+@@ -984,7 +982,7 @@
+ u_char tmp_buf[4];
+ __u32 datum;
+
+- map->copy_from(map, tmp_buf,
++ map_copy_from(map, tmp_buf,
+ bus_ofs + private->chips[chipnum].start,
+ map->buswidth);
+ while (len && i < map->buswidth)
+@@ -1057,7 +1055,7 @@
+ u_char tmp_buf[2];
+ __u32 datum;
+
+- map->copy_from(map, tmp_buf,
++ map_copy_from(map, tmp_buf,
+ ofs + private->chips[chipnum].start,
+ map->buswidth);
+ while (len--) {
+@@ -1178,7 +1176,7 @@
+ __u8 verify;
+
+ for (address = adr; address < (adr + size); address++) {
+- if ((verify = map->read8(map, address)) != 0xFF) {
++ if ((verify = map_read8(map, address)) != 0xFF) {
+ error = 1;
+ break;
+ }
+diff -Nurb linux-mips-2.4.27/drivers/mtd/chips/cfi_cmdset_0001.c linux/drivers/mtd/chips/cfi_cmdset_0001.c
+--- linux-mips-2.4.27/drivers/mtd/chips/cfi_cmdset_0001.c 2003-07-05 05:23:38.000000000 +0200
++++ linux/drivers/mtd/chips/cfi_cmdset_0001.c 2004-11-19 10:25:11.733225024 +0100
+@@ -4,7 +4,7 @@
+ *
+ * (C) 2000 Red Hat. GPL'd
+ *
+- * $Id: cfi_cmdset_0001.c,v 1.114 2003/03/18 12:28:40 dwmw2 Exp $
++ * $Id: cfi_cmdset_0001.c,v 1.132 2003/11/04 19:34:22 thayne Exp $
+ *
+ *
+ * 10/10/2000 Nicolas Pitre <nico@cam.org>
+@@ -21,6 +21,7 @@
+ #include <linux/types.h>
+ #include <linux/kernel.h>
+ #include <linux/sched.h>
++#include <linux/init.h>
+ #include <asm/io.h>
+ #include <asm/byteorder.h>
+
+@@ -29,10 +30,14 @@
+ #include <linux/delay.h>
+ #include <linux/interrupt.h>
+ #include <linux/mtd/map.h>
+-#include <linux/mtd/cfi.h>
++#include <linux/mtd/mtd.h>
+ #include <linux/mtd/compatmac.h>
++#include <linux/mtd/cfi.h>
++
++/* #define CMDSET0001_DISABLE_ERASE_SUSPEND_ON_WRITE */
+
+-// debugging, turns off buffer write mode #define FORCE_WORD_WRITE
++// debugging, turns off buffer write mode if set to 1
++#define FORCE_WORD_WRITE 0
+
+ static int cfi_intelext_read (struct mtd_info *, loff_t, size_t, size_t *, u_char *);
+ static int cfi_intelext_read_user_prot_reg (struct mtd_info *, loff_t, size_t, size_t *, u_char *);
+@@ -52,16 +57,21 @@
+
+ static struct mtd_info *cfi_intelext_setup (struct map_info *);
+
+-static int do_point (struct mtd_info *mtd, loff_t from, size_t len,
++static int cfi_intelext_point (struct mtd_info *mtd, loff_t from, size_t len,
+ size_t *retlen, u_char **mtdbuf);
+-static void do_unpoint (struct mtd_info *mtd, u_char *addr, loff_t from,
++static void cfi_intelext_unpoint (struct mtd_info *mtd, u_char *addr, loff_t from,
+ size_t len);
+
++
++/*
++ * *********** SETUP AND PROBE BITS ***********
++ */
++
+ static struct mtd_chip_driver cfi_intelext_chipdrv = {
+- probe: NULL, /* Not usable directly */
+- destroy: cfi_intelext_destroy,
+- name: "cfi_cmdset_0001",
+- module: THIS_MODULE
++ .probe = NULL, /* Not usable directly */
++ .destroy = cfi_intelext_destroy,
++ .name = "cfi_cmdset_0001",
++ .module = THIS_MODULE
+ };
+
+ /* #define DEBUG_LOCK_BITS */
+@@ -102,13 +112,63 @@
+ }
+
+ printk(" Vcc Logic Supply Optimum Program/Erase Voltage: %d.%d V\n",
+- extp->VccOptimal >> 8, extp->VccOptimal & 0xf);
++ extp->VccOptimal >> 4, extp->VccOptimal & 0xf);
+ if (extp->VppOptimal)
+ printk(" Vpp Programming Supply Optimum Program/Erase Voltage: %d.%d V\n",
+- extp->VppOptimal >> 8, extp->VppOptimal & 0xf);
++ extp->VppOptimal >> 4, extp->VppOptimal & 0xf);
+ }
+ #endif
+
++#ifdef CMDSET0001_DISABLE_ERASE_SUSPEND_ON_WRITE
++/* Some Intel Strata Flash prior to FPO revision C has bugs in this area */
++static void fixup_intel_strataflash(struct map_info *map, void* param)
++{
++ struct cfi_private *cfi = map->fldrv_priv;
++ struct cfi_pri_amdstd *extp = cfi->cmdset_priv;
++
++ printk(KERN_WARNING "cfi_cmdset_0001: Suspend "
++ "erase on write disabled.\n");
++ extp->SuspendCmdSupport &= ~1;
++}
++#endif
++
++static void fixup_st_m28w320ct(struct map_info *map, void* param)
++{
++ struct cfi_private *cfi = map->fldrv_priv;
++
++ cfi->cfiq->BufWriteTimeoutTyp = 0; /* Not supported */
++ cfi->cfiq->BufWriteTimeoutMax = 0; /* Not supported */
++}
++
++static void fixup_st_m28w320cb(struct map_info *map, void* param)
++{
++ struct cfi_private *cfi = map->fldrv_priv;
++
++ /* Note this is done after the region info is endian swapped */
++ cfi->cfiq->EraseRegionInfo[1] =
++ (cfi->cfiq->EraseRegionInfo[1] & 0xffff0000) | 0x3e;
++};
++
++static struct cfi_fixup fixup_table[] = {
++#ifdef CMDSET0001_DISABLE_ERASE_SUSPEND_ON_WRITE
++ {
++ CFI_MFR_ANY, CFI_ID_ANY,
++ fixup_intel_strataflash, NULL
++ },
++#endif
++ {
++ 0x0020, /* STMicroelectronics */
++ 0x00ba, /* M28W320CT */
++ fixup_st_m28w320ct, NULL
++ }, {
++ 0x0020, /* STMicroelectronics */
++ 0x00bb, /* M28W320CB */
++ fixup_st_m28w320cb, NULL
++ }, {
++ 0, 0, NULL, NULL
++ }
++};
++
+ /* This routine is made available to other mtd code via
+ * inter_module_register. It must only be accessed through
+ * inter_module_get which will bump the use count of this module. The
+@@ -120,7 +180,6 @@
+ {
+ struct cfi_private *cfi = map->fldrv_priv;
+ int i;
+- __u32 base = cfi->chips[0].start;
+
+ if (cfi->cfi_mode == CFI_MODE_CFI) {
+ /*
+@@ -130,59 +189,29 @@
+ */
+ __u16 adr = primary?cfi->cfiq->P_ADR:cfi->cfiq->A_ADR;
+ struct cfi_pri_intelext *extp;
+- int ofs_factor = cfi->interleave * cfi->device_type;
+-
+- //printk(" Intel/Sharp Extended Query Table at 0x%4.4X\n", adr);
+- if (!adr)
+- return NULL;
+
+- /* Switch it into Query Mode */
+- cfi_send_gen_cmd(0x98, 0x55, base, map, cfi, cfi->device_type, NULL);
+-
+- extp = kmalloc(sizeof(*extp), GFP_KERNEL);
+- if (!extp) {
+- printk(KERN_ERR "Failed to allocate memory\n");
++ extp = (struct cfi_pri_intelext*)cfi_read_pri(map, adr, sizeof(*extp), "Intel/Sharp");
++ if (!extp)
+ return NULL;
+- }
+-
+- /* Read in the Extended Query Table */
+- for (i=0; i<sizeof(*extp); i++) {
+- ((unsigned char *)extp)[i] =
+- cfi_read_query(map, (base+((adr+i)*ofs_factor)));
+- }
+-
+- if (extp->MajorVersion != '1' ||
+- (extp->MinorVersion < '0' || extp->MinorVersion > '3')) {
+- printk(KERN_WARNING " Unknown IntelExt Extended Query "
+- "version %c.%c.\n", extp->MajorVersion,
+- extp->MinorVersion);
+- kfree(extp);
+- return NULL;
+- }
+
+ /* Do some byteswapping if necessary */
+ extp->FeatureSupport = le32_to_cpu(extp->FeatureSupport);
+ extp->BlkStatusRegMask = le16_to_cpu(extp->BlkStatusRegMask);
+ extp->ProtRegAddr = le16_to_cpu(extp->ProtRegAddr);
+
++ /* Install our own private info structure */
++ cfi->cmdset_priv = extp;
++
++ cfi_fixup(map, fixup_table);
++
+ #ifdef DEBUG_CFI_FEATURES
+ /* Tell the user about it in lots of lovely detail */
+ cfi_tell_features(extp);
+ #endif
+
+ if(extp->SuspendCmdSupport & 1) {
+-//#define CMDSET0001_DISABLE_ERASE_SUSPEND_ON_WRITE
+-#ifdef CMDSET0001_DISABLE_ERASE_SUSPEND_ON_WRITE
+-/* Some Intel Strata Flash prior to FPO revision C has bugs in this area */
+- printk(KERN_WARNING "cfi_cmdset_0001: Suspend "
+- "erase on write disabled.\n");
+- extp->SuspendCmdSupport &= ~1;
+-#else
+ printk(KERN_NOTICE "cfi_cmdset_0001: Erase suspend on write enabled\n");
+-#endif
+ }
+- /* Install our own private info structure */
+- cfi->cmdset_priv = extp;
+ }
+
+ for (i=0; i< cfi->numchips; i++) {
+@@ -194,8 +223,6 @@
+
+ map->fldrv = &cfi_intelext_chipdrv;
+
+- /* Make sure it's in read mode */
+- cfi_send_gen_cmd(0xff, 0x55, base, map, cfi, cfi->device_type, NULL);
+ return cfi_intelext_setup(map);
+ }
+
+@@ -261,20 +288,16 @@
+ mtd->erase = cfi_intelext_erase_varsize;
+ mtd->read = cfi_intelext_read;
+
+- if(map->point && map->unpoint){
+- mtd->point = do_point;
+- mtd->unpoint = do_unpoint;
++ if (map_is_linear(map)) {
++ mtd->point = cfi_intelext_point;
++ mtd->unpoint = cfi_intelext_unpoint;
+ }
+
+-#ifndef FORCE_WORD_WRITE
+- if ( cfi->cfiq->BufWriteTimeoutTyp ) {
+- printk("Using buffer write method\n" );
++ if ( cfi->cfiq->BufWriteTimeoutTyp && !FORCE_WORD_WRITE) {
++ printk(KERN_INFO "Using buffer write method\n" );
+ mtd->write = cfi_intelext_write_buffers;
+ } else {
+-#else
+- {
+-#endif
+- printk("Using word write method\n" );
++ printk(KERN_INFO "Using word write method\n" );
+ mtd->write = cfi_intelext_write_words;
+ }
+ mtd->read_user_prot_reg = cfi_intelext_read_user_prot_reg;
+@@ -286,8 +309,8 @@
+ mtd->resume = cfi_intelext_resume;
+ mtd->flags = MTD_CAP_NORFLASH;
+ map->fldrv = &cfi_intelext_chipdrv;
+- MOD_INC_USE_COUNT;
+ mtd->name = map->name;
++ __module_get(THIS_MODULE);
+ return mtd;
+
+ setup_err:
+@@ -301,78 +324,170 @@
+ return NULL;
+ }
+
+-static int do_point_onechip (struct map_info *map, struct flchip *chip, loff_t adr, size_t len)
++/*
++ * *********** CHIP ACCESS FUNCTIONS ***********
++ */
++
++static int get_chip(struct map_info *map, struct flchip *chip, unsigned long adr, int mode)
+ {
+- cfi_word status, status_OK;
+- unsigned long timeo;
+ DECLARE_WAITQUEUE(wait, current);
+- unsigned long cmd_addr;
+ struct cfi_private *cfi = map->fldrv_priv;
++ cfi_word status, status_OK = CMD(0x80);
++ unsigned long timeo;
++ struct cfi_pri_intelext *cfip = (struct cfi_pri_intelext *)cfi->cmdset_priv;
+
+- adr += chip->start;
+-
+- /* Ensure cmd read/writes are aligned. */
+- cmd_addr = adr & ~(CFIDEV_BUSWIDTH-1);
+-
+- /* Let's determine this according to the interleave only once */
+- status_OK = CMD(0x80);
+-
++ resettime:
+ timeo = jiffies + HZ;
+ retry:
+- spin_lock(chip->mutex);
+-
+- /* Check that the chip's ready to talk to us.
+- * If it's in FL_ERASING state, suspend it and make it talk now.
+- */
+ switch (chip->state) {
+
+- case FL_READY:
+- case FL_POINT:
++ case FL_STATUS:
++ for (;;) {
++ status = cfi_read(map, adr);
++ if ((status & status_OK) == status_OK)
+ break;
+
++ if (time_after(jiffies, timeo)) {
++ printk(KERN_ERR "Waiting for chip to be ready timed out. Status %llx\n",
++ (long long)status);
++ spin_unlock(chip->mutex);
++ return -EIO;
++ }
++ spin_unlock(chip->mutex);
++ cfi_udelay(1);
++ spin_lock(chip->mutex);
++ /* Someone else might have been playing with it. */
++ goto retry;
++ }
++
++ case FL_READY:
+ case FL_CFI_QUERY:
+ case FL_JEDEC_QUERY:
+- cfi_write(map, CMD(0x70), cmd_addr);
+- chip->state = FL_STATUS;
++ return 0;
+
+- case FL_STATUS:
+- status = cfi_read(map, cmd_addr);
+- if ((status & status_OK) == status_OK) {
+- cfi_write(map, CMD(0xff), cmd_addr);
+- chip->state = FL_READY;
++ case FL_ERASING:
++ if (!(cfip->FeatureSupport & 2) ||
++ !(mode == FL_READY || mode == FL_POINT ||
++ (mode == FL_WRITING && (cfip->SuspendCmdSupport & 1))))
++ goto sleep;
++
++
++ /* Erase suspend */
++ cfi_write(map, CMD(0xB0), adr);
++
++ /* If the flash has finished erasing, then 'erase suspend'
++ * appears to make some (28F320) flash devices switch to
++ * 'read' mode. Make sure that we switch to 'read status'
++ * mode so we get the right data. --rmk
++ */
++ cfi_write(map, CMD(0x70), adr);
++ chip->oldstate = FL_ERASING;
++ chip->state = FL_ERASE_SUSPENDING;
++ chip->erase_suspended = 1;
++ for (;;) {
++ status = cfi_read(map, adr);
++ if ((status & status_OK) == status_OK)
+ break;
+- }
+
+- /* Urgh. Chip not yet ready to talk to us. */
+ if (time_after(jiffies, timeo)) {
+- spin_unlock(chip->mutex);
+- printk(KERN_ERR "waiting for chip to be ready timed out in read. WSM status = %llx\n", (__u64)status);
++ /* Urgh. Resume and pretend we weren't here. */
++ cfi_write(map, CMD(0xd0), adr);
++ /* Make sure we're in 'read status' mode if it had finished */
++ cfi_write(map, CMD(0x70), adr);
++ chip->state = FL_ERASING;
++ chip->oldstate = FL_READY;
++ printk(KERN_ERR "Chip not ready after erase "
++ "suspended: status = 0x%x\n", status);
+ return -EIO;
+ }
+
+- /* Latency issues. Drop the lock, wait a while and retry */
+ spin_unlock(chip->mutex);
+ cfi_udelay(1);
+- goto retry;
++ spin_lock(chip->mutex);
++ /* Nobody will touch it while it's in state FL_ERASE_SUSPENDING.
++ So we can just loop here. */
++ }
++ chip->state = FL_STATUS;
++ return 0;
++
++ case FL_POINT:
++ /* Only if there's no operation suspended... */
++ if (mode == FL_READY && chip->oldstate == FL_READY)
++ return 0;
+
+ default:
+- /* Stick ourselves on a wait queue to be woken when
+- someone changes the status */
++ sleep:
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ add_wait_queue(&chip->wq, &wait);
+ spin_unlock(chip->mutex);
+ schedule();
+ remove_wait_queue(&chip->wq, &wait);
+- timeo = jiffies + HZ;
+- goto retry;
++ spin_lock(chip->mutex);
++ goto resettime;
+ }
++}
++
++static void put_chip(struct map_info *map, struct flchip *chip, unsigned long adr)
++{
++ struct cfi_private *cfi = map->fldrv_priv;
++
++ switch(chip->oldstate) {
++ case FL_ERASING:
++ chip->state = chip->oldstate;
++ /* What if one interleaved chip has finished and the
++ other hasn't? The old code would leave the finished
++ one in READY mode. That's bad, and caused -EROFS
++ errors to be returned from do_erase_oneblock because
++ that's the only bit it checked for at the time.
++ As the state machine appears to explicitly allow
++ sending the 0x70 (Read Status) command to an erasing
++ chip and expecting it to be ignored, that's what we
++ do. */
++ cfi_write(map, CMD(0xd0), adr);
++ cfi_write(map, CMD(0x70), adr);
++ chip->oldstate = FL_READY;
++ chip->state = FL_ERASING;
++ break;
++
++ case FL_READY:
++ case FL_STATUS:
++ /* We should really make set_vpp() count, rather than doing this */
++ DISABLE_VPP(map);
++ break;
++ default:
++ printk(KERN_ERR "put_chip() called with oldstate %d!!\n", chip->oldstate);
++ }
++ wake_up(&chip->wq);
++}
++
++static int do_point_onechip (struct map_info *map, struct flchip *chip, loff_t adr, size_t len)
++{
++ unsigned long cmd_addr;
++ struct cfi_private *cfi = map->fldrv_priv;
++ int ret = 0;
++
++ adr += chip->start;
++
++ /* Ensure cmd read/writes are aligned. */
++ cmd_addr = adr & ~(CFIDEV_BUSWIDTH-1);
++
++ spin_lock(chip->mutex);
++
++ ret = get_chip(map, chip, cmd_addr, FL_POINT);
++
++ if (!ret) {
++ if (chip->state != FL_POINT && chip->state != FL_READY)
++ cfi_write(map, CMD(0xff), cmd_addr);
+
+ chip->state = FL_POINT;
+ chip->ref_point_counter++;
++ }
+ spin_unlock(chip->mutex);
+- return 0;
++
++ return ret;
+ }
+-static int do_point (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char **mtdbuf)
++
++static int cfi_intelext_point (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char **mtdbuf)
+ {
+ struct map_info *map = mtd->priv;
+ struct cfi_private *cfi = map->fldrv_priv;
+@@ -380,12 +495,10 @@
+ int chipnum;
+ int ret = 0;
+
+- if (from + len > mtd->size)
++ if (!map->virt || (from + len > mtd->size))
+ return -EINVAL;
+
+- *mtdbuf = map->point(map, from, len);
+- if(*mtdbuf == NULL)
+- return -EINVAL; /* can not point this region */
++ *mtdbuf = (void *)map->virt + from;
+ *retlen = 0;
+
+ /* Now lock the chip(s) to POINT state */
+@@ -418,14 +531,13 @@
+ return 0;
+ }
+
+-static void do_unpoint (struct mtd_info *mtd, u_char *addr, loff_t from, size_t len)
++static void cfi_intelext_unpoint (struct mtd_info *mtd, u_char *addr, loff_t from, size_t len)
+ {
+ struct map_info *map = mtd->priv;
+ struct cfi_private *cfi = map->fldrv_priv;
+ unsigned long ofs;
+ int chipnum;
+
+- map->unpoint(map, addr, from, len);
+ /* Now unlock the chip(s) POINT state */
+
+ /* ofs: offset within the first chip that the first read should start */
+@@ -446,13 +558,14 @@
+ thislen = len;
+
+ spin_lock(chip->mutex);
+- if(chip->state == FL_POINT){
++ if (chip->state == FL_POINT) {
+ chip->ref_point_counter--;
+ if(chip->ref_point_counter == 0)
+ chip->state = FL_READY;
+ } else
+- printk("Warning: unpoint called on non pointed region\n"); /* Should this give an error? */
+- wake_up(&chip->wq);
++ printk(KERN_ERR "Warning: unpoint called on non pointed region\n"); /* Should this give an error? */
++
++ put_chip(map, chip, chip->start);
+ spin_unlock(chip->mutex);
+
+ len -= thislen;
+@@ -463,136 +576,32 @@
+
+ static inline int do_read_onechip(struct map_info *map, struct flchip *chip, loff_t adr, size_t len, u_char *buf)
+ {
+- cfi_word status, status_OK;
+- unsigned long timeo;
+- DECLARE_WAITQUEUE(wait, current);
+- int suspended = 0;
+ unsigned long cmd_addr;
+ struct cfi_private *cfi = map->fldrv_priv;
++ int ret;
+
+ adr += chip->start;
+
+ /* Ensure cmd read/writes are aligned. */
+ cmd_addr = adr & ~(CFIDEV_BUSWIDTH-1);
+
+- /* Let's determine this according to the interleave only once */
+- status_OK = CMD(0x80);
+-
+- timeo = jiffies + HZ;
+- retry:
+ spin_lock(chip->mutex);
+-
+- /* Check that the chip's ready to talk to us.
+- * If it's in FL_ERASING state, suspend it and make it talk now.
+- */
+- switch (chip->state) {
+- case FL_ERASING:
+- if (!cfi->cmdset_priv ||
+- !(((struct cfi_pri_intelext *)cfi->cmdset_priv)->FeatureSupport & 2))
+- goto sleep; /* We don't support erase suspend */
+-
+- cfi_write (map, CMD(0xb0), cmd_addr);
+- /* If the flash has finished erasing, then 'erase suspend'
+- * appears to make some (28F320) flash devices switch to
+- * 'read' mode. Make sure that we switch to 'read status'
+- * mode so we get the right data. --rmk
+- */
+- cfi_write(map, CMD(0x70), cmd_addr);
+- chip->oldstate = FL_ERASING;
+- chip->state = FL_ERASE_SUSPENDING;
+- // printk("Erase suspending at 0x%lx\n", cmd_addr);
+- for (;;) {
+- status = cfi_read(map, cmd_addr);
+- if ((status & status_OK) == status_OK)
+- break;
+-
+- if (time_after(jiffies, timeo)) {
+- /* Urgh */
+- cfi_write(map, CMD(0xd0), cmd_addr);
+- /* make sure we're in 'read status' mode */
+- cfi_write(map, CMD(0x70), cmd_addr);
+- chip->state = FL_ERASING;
+- spin_unlock(chip->mutex);
+- printk(KERN_ERR "Chip not ready after erase "
+- "suspended: status = 0x%llx\n", (__u64)status);
+- return -EIO;
+- }
+-
++ ret = get_chip(map, chip, cmd_addr, FL_READY);
++ if (ret) {
+ spin_unlock(chip->mutex);
+- cfi_udelay(1);
+- spin_lock(chip->mutex);
++ return ret;
+ }
+
+- suspended = 1;
++ if (chip->state != FL_POINT && chip->state != FL_READY) {
+ cfi_write(map, CMD(0xff), cmd_addr);
+- chip->state = FL_READY;
+- break;
+-
+-#if 0
+- case FL_WRITING:
+- /* Not quite yet */
+-#endif
+-
+- case FL_READY:
+- case FL_POINT:
+- break;
+-
+- case FL_CFI_QUERY:
+- case FL_JEDEC_QUERY:
+- cfi_write(map, CMD(0x70), cmd_addr);
+- chip->state = FL_STATUS;
+
+- case FL_STATUS:
+- status = cfi_read(map, cmd_addr);
+- if ((status & status_OK) == status_OK) {
+- cfi_write(map, CMD(0xff), cmd_addr);
+ chip->state = FL_READY;
+- break;
+ }
+
+- /* Urgh. Chip not yet ready to talk to us. */
+- if (time_after(jiffies, timeo)) {
+- spin_unlock(chip->mutex);
+- printk(KERN_ERR "waiting for chip to be ready timed out in read. WSM status = %llx\n", (__u64)status);
+- return -EIO;
+- }
++ map_copy_from(map, buf, adr, len);
+
+- /* Latency issues. Drop the lock, wait a while and retry */
+- spin_unlock(chip->mutex);
+- cfi_udelay(1);
+- goto retry;
++ put_chip(map, chip, cmd_addr);
+
+- default:
+- sleep:
+- /* Stick ourselves on a wait queue to be woken when
+- someone changes the status */
+- set_current_state(TASK_UNINTERRUPTIBLE);
+- add_wait_queue(&chip->wq, &wait);
+- spin_unlock(chip->mutex);
+- schedule();
+- remove_wait_queue(&chip->wq, &wait);
+- timeo = jiffies + HZ;
+- goto retry;
+- }
+-
+- map->copy_from(map, buf, adr, len);
+-
+- if (suspended) {
+- chip->state = chip->oldstate;
+- /* What if one interleaved chip has finished and the
+- other hasn't? The old code would leave the finished
+- one in READY mode. That's bad, and caused -EROFS
+- errors to be returned from do_erase_oneblock because
+- that's the only bit it checked for at the time.
+- As the state machine appears to explicitly allow
+- sending the 0x70 (Read Status) command to an erasing
+- chip and expecting it to be ignored, that's what we
+- do. */
+- cfi_write(map, CMD(0xd0), cmd_addr);
+- cfi_write(map, CMD(0x70), cmd_addr);
+- }
+-
+- wake_up(&chip->wq);
+ spin_unlock(chip->mutex);
+ return 0;
+ }
+@@ -640,70 +649,52 @@
+ {
+ struct map_info *map = mtd->priv;
+ struct cfi_private *cfi = map->fldrv_priv;
+- struct cfi_pri_intelext *extp=cfi->cmdset_priv;
+- int ofs_factor = cfi->interleave * cfi->device_type;
+- int count=len;
++ struct cfi_pri_intelext *extp = cfi->cmdset_priv;
+ struct flchip *chip;
+- int chip_num,offst;
+- unsigned long timeo;
+- DECLARE_WAITQUEUE(wait, current);
++ int ofs_factor = cfi->interleave * cfi->device_type;
++ int count = len;
++ int chip_num, offst;
++ int ret;
+
+- chip=0;
+- /* Calculate which chip & protection register offset we need */
+- chip_num=((unsigned int)from/reg_sz);
+- offst=from-(reg_sz*chip_num)+base_offst;
++ chip_num = ((unsigned int)from/reg_sz);
++ offst = from - (reg_sz*chip_num)+base_offst;
+
+- while(count){
++ while (count) {
++ /* Calculate which chip & protection register offset we need */
+
+- if(chip_num>=cfi->numchips)
++ if (chip_num >= cfi->numchips)
+ goto out;
+
+- /* Make sure that the chip is in the right state */
++ chip = &cfi->chips[chip_num];
+
+- timeo = jiffies + HZ;
+- chip=&cfi->chips[chip_num];
+- retry:
+ spin_lock(chip->mutex);
+-
+- switch (chip->state) {
+- case FL_READY:
+- case FL_STATUS:
+- case FL_CFI_QUERY:
+- case FL_JEDEC_QUERY:
+- break;
+-
+- default:
+- /* Stick ourselves on a wait queue to be woken when
+- someone changes the status */
+- set_current_state(TASK_UNINTERRUPTIBLE);
+- add_wait_queue(&chip->wq, &wait);
++ ret = get_chip(map, chip, chip->start, FL_JEDEC_QUERY);
++ if (ret) {
+ spin_unlock(chip->mutex);
+- schedule();
+- remove_wait_queue(&chip->wq, &wait);
+- timeo = jiffies + HZ;
+- goto retry;
++ return (len-count)?:ret;
+ }
+
+- /* Now read the data required from this flash */
++ if (chip->state != FL_JEDEC_QUERY) {
++ cfi_write(map, CMD(0x90), chip->start);
++ chip->state = FL_JEDEC_QUERY;
++ }
+
+- cfi_send_gen_cmd(0x90, 0x55,chip->start, map, cfi, cfi->device_type, NULL);
+- while(count && ((offst-base_offst)<reg_sz)){
+- *buf=map->read8(map,(chip->start+((extp->ProtRegAddr+1)*ofs_factor)+offst));
++ while (count && ((offst-base_offst) < reg_sz)) {
++ *buf = map_read8(map,(chip->start+((extp->ProtRegAddr+1)*ofs_factor)+offst));
+ buf++;
+ offst++;
+ count--;
+ }
+
+- chip->state=FL_CFI_QUERY;
++ put_chip(map, chip, chip->start);
+ spin_unlock(chip->mutex);
++
+ /* Move on to the next chip */
+ chip_num++;
+- offst=base_offst;
+-
++ offst = base_offst;
+ }
+
+ out:
+- wake_up(&chip->wq);
+ return len-count;
+ }
+
+@@ -749,103 +740,20 @@
+ static int do_write_oneword(struct map_info *map, struct flchip *chip, unsigned long adr, cfi_word datum)
+ {
+ struct cfi_private *cfi = map->fldrv_priv;
+- struct cfi_pri_intelext *extp = cfi->cmdset_priv;
+- cfi_word status, status_OK;
+- unsigned long timeo;
+- DECLARE_WAITQUEUE(wait, current);
+- int z, suspended=0, ret=0;
+-
+- adr += chip->start;
+-
+- /* Let's determine this according to the interleave only once */
+- status_OK = CMD(0x80);
+-
+- timeo = jiffies + HZ;
+- retry:
+- spin_lock(chip->mutex);
+-
+- /* Check that the chip's ready to talk to us.
+- * Later, we can actually think about interrupting it
+- * if it's in FL_ERASING state.
+- * Not just yet, though.
+- */
+- switch (chip->state) {
+- case FL_READY:
+- break;
+-
+- case FL_CFI_QUERY:
+- case FL_JEDEC_QUERY:
+- cfi_write(map, CMD(0x70), adr);
+- chip->state = FL_STATUS;
+-
+- case FL_STATUS:
+- status = cfi_read(map, adr);
+- if ((status & status_OK) == status_OK)
+- break;
+-
+- /* Urgh. Chip not yet ready to talk to us. */
+- if (time_after(jiffies, timeo)) {
+- spin_unlock(chip->mutex);
+- printk(KERN_ERR "waiting for chip to be ready timed out in read\n");
+- return -EIO;
+- }
+-
+- /* Latency issues. Drop the lock, wait a while and retry */
+- spin_unlock(chip->mutex);
+- cfi_udelay(1);
+- goto retry;
+-
+- case FL_ERASING:
+- if (!extp ||
+- !((extp->FeatureSupport & 2) && (extp->SuspendCmdSupport & 1)))
+- goto sleep; /* We don't support erase suspend */
+-
+- cfi_write (map, CMD(0xb0), adr);
+-
+- /* If the flash has finished erasing, then 'erase suspend'
+- * appears to make some (28F320) flash devices switch to
+- * 'read' mode. Make sure that we switch to 'read status'
+- * mode so we get the right data. --rmk
+- */
+- cfi_write(map, CMD(0x70), adr);
+- chip->oldstate = FL_ERASING;
+- chip->state = FL_ERASE_SUSPENDING;
+- for (;;) {
+- status = cfi_read(map, adr);
+- if ((status & status_OK) == status_OK)
+- break;
++ cfi_word status, status_OK;
++ unsigned long timeo;
++ int z, ret=0;
+
+- if (time_after(jiffies, timeo)) {
+- /* Urgh */
+- cfi_write(map, CMD(0xd0), adr);
+- /* make sure we're in 'read status' mode */
+- cfi_write(map, CMD(0x70), adr);
+- chip->state = FL_ERASING;
+- spin_unlock(chip->mutex);
+- printk(KERN_ERR "Chip not ready after erase "
+- "suspended: status = 0x%x\n", status);
+- return -EIO;
+- }
++ adr += chip->start;
+
+- spin_unlock(chip->mutex);
+- cfi_udelay(1);
+- spin_lock(chip->mutex);
+- }
+- suspended = 1;
+- chip->state = FL_STATUS;
+- break;
++ /* Let's determine this according to the interleave only once */
++ status_OK = CMD(0x80);
+
+- default:
+- sleep:
+- /* Stick ourselves on a wait queue to be woken when
+- someone changes the status */
+- set_current_state(TASK_UNINTERRUPTIBLE);
+- add_wait_queue(&chip->wq, &wait);
++ spin_lock(chip->mutex);
++ ret = get_chip(map, chip, adr, FL_WRITING);
++ if (ret) {
+ spin_unlock(chip->mutex);
+- schedule();
+- remove_wait_queue(&chip->wq, &wait);
+- timeo = jiffies + HZ;
+- goto retry;
++ return ret;
+ }
+
+ ENABLE_VPP(map);
+@@ -862,6 +770,8 @@
+ for (;;) {
+ if (chip->state != FL_WRITING) {
+ /* Someone's suspended the write. Sleep */
++ DECLARE_WAITQUEUE(wait, current);
++
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ add_wait_queue(&chip->wq, &wait);
+ spin_unlock(chip->mutex);
+@@ -879,7 +789,6 @@
+ /* OK Still waiting */
+ if (time_after(jiffies, timeo)) {
+ chip->state = FL_STATUS;
+- DISABLE_VPP(map);
+ printk(KERN_ERR "waiting for chip to be ready timed out in word write\n");
+ ret = -EIO;
+ goto out;
+@@ -908,27 +817,11 @@
+ /* put back into read status register mode */
+ cfi_write(map, CMD(0x70), adr);
+ ret = -EROFS;
+- goto out;
+ }
+ out:
+- if (suspended) {
+- chip->state = chip->oldstate;
+- /* What if one interleaved chip has finished and the
+- other hasn't? The old code would leave the finished
+- one in READY mode. That's bad, and caused -EROFS
+- errors to be returned from do_erase_oneblock because
+- that's the only bit it checked for at the time.
+- As the state machine appears to explicitly allow
+- sending the 0x70 (Read Status) command to an erasing
+- chip and expecting it to be ignored, that's what we
+- do. */
+- cfi_write(map, CMD(0xd0), adr);
+- cfi_write(map, CMD(0x70), adr);
+- } else
+- DISABLE_VPP(map); /* must not clear the VPP if there is a suspended erase to be resumed */
+-
+- wake_up(&chip->wq);
++ put_chip(map, chip, adr);
+ spin_unlock(chip->mutex);
++
+ return ret;
+ }
+
+@@ -1059,11 +952,9 @@
+ unsigned long adr, const u_char *buf, int len)
+ {
+ struct cfi_private *cfi = map->fldrv_priv;
+- struct cfi_pri_intelext *extp = cfi->cmdset_priv;
+ cfi_word status, status_OK;
+ unsigned long cmd_adr, timeo;
+- DECLARE_WAITQUEUE(wait, current);
+- int wbufsize, z, suspended=0, ret=0;
++ int wbufsize, z, ret=0, bytes, words;
+
+ wbufsize = CFIDEV_INTERLEAVE << cfi->cfiq->MaxBufWriteSize;
+ adr += chip->start;
+@@ -1072,91 +963,18 @@
+ /* Let's determine this according to the interleave only once */
+ status_OK = CMD(0x80);
+
+- timeo = jiffies + HZ;
+- retry:
+ spin_lock(chip->mutex);
+-
+- /* Check that the chip's ready to talk to us.
+- * Later, we can actually think about interrupting it
+- * if it's in FL_ERASING state.
+- * Not just yet, though.
+- */
+- switch (chip->state) {
+- case FL_READY:
+- case FL_CFI_QUERY:
+- case FL_JEDEC_QUERY:
+- cfi_write(map, CMD(0x70), cmd_adr);
+- chip->state = FL_STATUS;
+-
+- case FL_STATUS:
+- status = cfi_read(map, cmd_adr);
+- if ((status & status_OK) == status_OK)
+- break;
+- /* Urgh. Chip not yet ready to talk to us. */
+- if (time_after(jiffies, timeo)) {
++ ret = get_chip(map, chip, cmd_adr, FL_WRITING);
++ if (ret) {
+ spin_unlock(chip->mutex);
+- printk(KERN_ERR "waiting for chip to be ready timed out in buffer write\n");
+- return -EIO;
++ return ret;
+ }
+
+- /* Latency issues. Drop the lock, wait a while and retry */
+- spin_unlock(chip->mutex);
+- cfi_udelay(1);
+- goto retry;
+-
+- case FL_ERASING:
+- if (!extp ||
+- !((extp->FeatureSupport & 2) && (extp->SuspendCmdSupport & 1)))
+- goto sleep; /* We don't support erase suspend */
+-
+- cfi_write (map, CMD(0xb0), adr);
+-
+- /* If the flash has finished erasing, then 'erase suspend'
+- * appears to make some (28F320) flash devices switch to
+- * 'read' mode. Make sure that we switch to 'read status'
+- * mode so we get the right data. --rmk
+- */
+- cfi_write(map, CMD(0x70), adr);
+- chip->oldstate = FL_ERASING;
+- chip->state = FL_ERASE_SUSPENDING;
+- for (;;) {
+- status = cfi_read(map, adr);
+- if ((status & status_OK) == status_OK)
+- break;
+-
+- if (time_after(jiffies, timeo)) {
+- /* Urgh */
+- cfi_write(map, CMD(0xd0), adr);
+- /* make sure we're in 'read status' mode */
+- cfi_write(map, CMD(0x70), adr);
+- chip->state = FL_ERASING;
+- spin_unlock(chip->mutex);
+- printk(KERN_ERR "Chip not ready after erase "
+- "suspended: status = 0x%x\n", status);
+- return -EIO;
+- }
++ if (chip->state != FL_STATUS)
++ cfi_write(map, CMD(0x70), cmd_adr);
+
+- spin_unlock(chip->mutex);
+- cfi_udelay(1);
+- spin_lock(chip->mutex);
+- }
+- suspended = 1;
+- chip->state = FL_STATUS;
+- break;
++ status = cfi_read(map, cmd_adr);
+
+- default:
+- sleep:
+- /* Stick ourselves on a wait queue to be woken when
+- someone changes the status */
+- set_current_state(TASK_UNINTERRUPTIBLE);
+- add_wait_queue(&chip->wq, &wait);
+- spin_unlock(chip->mutex);
+- schedule();
+- remove_wait_queue(&chip->wq, &wait);
+- timeo = jiffies + HZ;
+- goto retry;
+- }
+- /* We know we're now in FL_STATUS mode, and 'status' is current */
+ /* §4.8 of the 28FxxxJ3A datasheet says "Any time SR.4 and/or SR.5 is set
+ [...], the device will not accept any more Write to Buffer commands".
+ So we must check here and reset those bits if they're set. Otherwise
+@@ -1185,7 +1003,6 @@
+ /* Argh. Not ready for write to buffer */
+ cfi_write(map, CMD(0x70), cmd_adr);
+ chip->state = FL_STATUS;
+- DISABLE_VPP(map);
+ printk(KERN_ERR "Chip not ready for buffer write. Xstatus = %llx, status = %llx\n", (__u64)status, (__u64)cfi_read(map, cmd_adr));
+ /* Odd. Clear status bits */
+ cfi_write(map, CMD(0x50), cmd_adr);
+@@ -1196,20 +1013,42 @@
+ }
+
+ /* Write length of data to come */
+- cfi_write(map, CMD(len/CFIDEV_BUSWIDTH-1), cmd_adr );
++ bytes = len & (CFIDEV_BUSWIDTH-1);
++ words = len / CFIDEV_BUSWIDTH;
++ cfi_write(map, CMD(words - !bytes), cmd_adr );
+
+ /* Write data */
+- for (z = 0; z < len; z += CFIDEV_BUSWIDTH) {
++ z = 0;
++ while(z < words * CFIDEV_BUSWIDTH) {
+ if (cfi_buswidth_is_1()) {
+- map->write8 (map, *((__u8*)buf)++, adr+z);
++ map_write8 (map, *((__u8*)buf)++, adr+z);
+ } else if (cfi_buswidth_is_2()) {
+- map->write16 (map, *((__u16*)buf)++, adr+z);
++ map_write16 (map, *((__u16*)buf)++, adr+z);
+ } else if (cfi_buswidth_is_4()) {
+- map->write32 (map, *((__u32*)buf)++, adr+z);
++ map_write32 (map, *((__u32*)buf)++, adr+z);
+ } else if (cfi_buswidth_is_8()) {
+- map->write64 (map, *((__u64*)buf)++, adr+z);
++ map_write64 (map, *((__u64*)buf)++, adr+z);
++ } else {
++ ret = -EINVAL;
++ goto out;
++ }
++ z += CFIDEV_BUSWIDTH;
++ }
++ if (bytes) {
++ int i = 0, n = 0;
++ u_char tmp_buf[8], *tmp_p = tmp_buf;
++
++ while (bytes--)
++ tmp_buf[i++] = buf[n++];
++ while (i < CFIDEV_BUSWIDTH)
++ tmp_buf[i++] = 0xff;
++ if (cfi_buswidth_is_2()) {
++ map_write16 (map, *((__u16*)tmp_p)++, adr+z);
++ } else if (cfi_buswidth_is_4()) {
++ map_write32 (map, *((__u32*)tmp_p)++, adr+z);
++ } else if (cfi_buswidth_is_8()) {
++ map_write64 (map, *((__u64*)tmp_p)++, adr+z);
+ } else {
+- DISABLE_VPP(map);
+ ret = -EINVAL;
+ goto out;
+ }
+@@ -1227,6 +1066,7 @@
+ for (;;) {
+ if (chip->state != FL_WRITING) {
+ /* Someone's suspended the write. Sleep */
++ DECLARE_WAITQUEUE(wait, current);
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ add_wait_queue(&chip->wq, &wait);
+ spin_unlock(chip->mutex);
+@@ -1244,7 +1084,6 @@
+ /* OK Still waiting */
+ if (time_after(jiffies, timeo)) {
+ chip->state = FL_STATUS;
+- DISABLE_VPP(map);
+ printk(KERN_ERR "waiting for chip to be ready timed out in bufwrite\n");
+ ret = -EIO;
+ goto out;
+@@ -1266,6 +1105,7 @@
+
+ /* Done and happy. */
+ chip->state = FL_STATUS;
++
+ /* check for lock bit */
+ if (status & CMD(0x02)) {
+ /* clear status */
+@@ -1273,26 +1113,10 @@
+ /* put back into read status register mode */
+ cfi_write(map, CMD(0x70), adr);
+ ret = -EROFS;
+- goto out;
+ }
+- out:
+- if (suspended) {
+- chip->state = chip->oldstate;
+- /* What if one interleaved chip has finished and the
+- other hasn't? The old code would leave the finished
+- one in READY mode. That's bad, and caused -EROFS
+- errors to be returned from do_erase_oneblock because
+- that's the only bit it checked for at the time.
+- As the state machine appears to explicitly allow
+- sending the 0x70 (Read Status) command to an erasing
+- chip and expecting it to be ignored, that's what we
+- do. */
+- cfi_write(map, CMD(0xd0), adr);
+- cfi_write(map, CMD(0x70), adr);
+- } else
+- DISABLE_VPP(map); /* must not clear the VPP if there is a suspended erase to be resumed */
+
+- wake_up(&chip->wq);
++ out:
++ put_chip(map, chip, cmd_adr);
+ spin_unlock(chip->mutex);
+ return ret;
+ }
+@@ -1336,12 +1160,12 @@
+ }
+
+ /* Write buffer is worth it only if more than one word to write... */
+- while(len > CFIDEV_BUSWIDTH) {
++ while(len) {
+ /* We must not cross write block boundaries */
+ int size = wbufsize - (ofs & (wbufsize-1));
+
+ if (size > len)
+- size = len & ~(CFIDEV_BUSWIDTH-1);
++ size = len;
+ ret = do_write_buffer(map, &cfi->chips[chipnum],
+ ofs, buf, size);
+ if (ret)
+@@ -1359,17 +1183,6 @@
+ return 0;
+ }
+ }
+-
+- /* ... and write the remaining bytes */
+- if (len > 0) {
+- size_t local_retlen;
+- ret = cfi_intelext_write_words(mtd, ofs + (chipnum << cfi->chipshift),
+- len, &local_retlen, buf);
+- if (ret)
+- return ret;
+- (*retlen) += local_retlen;
+- }
+-
+ return 0;
+ }
+
+@@ -1479,45 +1292,12 @@
+ /* Let's determine this according to the interleave only once */
+ status_OK = CMD(0x80);
+
+- timeo = jiffies + HZ;
+-retry:
++ retry:
+ spin_lock(chip->mutex);
+-
+- /* Check that the chip's ready to talk to us. */
+- switch (chip->state) {
+- case FL_CFI_QUERY:
+- case FL_JEDEC_QUERY:
+- case FL_READY:
+- cfi_write(map, CMD(0x70), adr);
+- chip->state = FL_STATUS;
+-
+- case FL_STATUS:
+- status = cfi_read(map, adr);
+- if ((status & status_OK) == status_OK)
+- break;
+-
+- /* Urgh. Chip not yet ready to talk to us. */
+- if (time_after(jiffies, timeo)) {
+- spin_unlock(chip->mutex);
+- printk(KERN_ERR "waiting for chip to be ready timed out in erase\n");
+- return -EIO;
+- }
+-
+- /* Latency issues. Drop the lock, wait a while and retry */
+- spin_unlock(chip->mutex);
+- cfi_udelay(1);
+- goto retry;
+-
+- default:
+- /* Stick ourselves on a wait queue to be woken when
+- someone changes the status */
+- set_current_state(TASK_UNINTERRUPTIBLE);
+- add_wait_queue(&chip->wq, &wait);
++ ret = get_chip(map, chip, adr, FL_ERASING);
++ if (ret) {
+ spin_unlock(chip->mutex);
+- schedule();
+- remove_wait_queue(&chip->wq, &wait);
+- timeo = jiffies + HZ;
+- goto retry;
++ return ret;
+ }
+
+ ENABLE_VPP(map);
+@@ -1528,7 +1308,7 @@
+ cfi_write(map, CMD(0x20), adr);
+ cfi_write(map, CMD(0xD0), adr);
+ chip->state = FL_ERASING;
+- chip->oldstate = 0;
++ chip->erase_suspended = 0;
+
+ spin_unlock(chip->mutex);
+ set_current_state(TASK_UNINTERRUPTIBLE);
+@@ -1550,11 +1330,11 @@
+ spin_lock(chip->mutex);
+ continue;
+ }
+- if (chip->oldstate) {
++ if (chip->erase_suspended) {
+ /* This erase was suspended and resumed.
+ Adjust the timeout */
+ timeo = jiffies + (HZ*20); /* FIXME */
+- chip->oldstate = 0;
++ chip->erase_suspended = 0;
+ }
+
+ status = cfi_read(map, adr);
+@@ -1658,39 +1438,22 @@
+ int i;
+ struct flchip *chip;
+ int ret = 0;
+- DECLARE_WAITQUEUE(wait, current);
+
+ for (i=0; !ret && i<cfi->numchips; i++) {
+ chip = &cfi->chips[i];
+
+- retry:
+ spin_lock(chip->mutex);
++ ret = get_chip(map, chip, chip->start, FL_SYNCING);
+
+- switch(chip->state) {
+- case FL_READY:
+- case FL_STATUS:
+- case FL_CFI_QUERY:
+- case FL_JEDEC_QUERY:
++ if (!ret) {
+ chip->oldstate = chip->state;
+ chip->state = FL_SYNCING;
+ /* No need to wake_up() on this state change -
+ * as the whole point is that nobody can do anything
+ * with the chip now anyway.
+ */
+- case FL_SYNCING:
+- spin_unlock(chip->mutex);
+- break;
+-
+- default:
+- /* Not an idle state */
+- add_wait_queue(&chip->wq, &wait);
+-
+- spin_unlock(chip->mutex);
+- schedule();
+- remove_wait_queue(&chip->wq, &wait);
+-
+- goto retry;
+ }
++ spin_unlock(chip->mutex);
+ }
+
+ /* Unlock the chips again */
+@@ -1731,52 +1494,18 @@
+ struct cfi_private *cfi = map->fldrv_priv;
+ cfi_word status, status_OK;
+ unsigned long timeo = jiffies + HZ;
+- DECLARE_WAITQUEUE(wait, current);
++ int ret;
+
+ adr += chip->start;
+
+ /* Let's determine this according to the interleave only once */
+ status_OK = CMD(0x80);
+
+- timeo = jiffies + HZ;
+-retry:
+ spin_lock(chip->mutex);
+-
+- /* Check that the chip's ready to talk to us. */
+- switch (chip->state) {
+- case FL_CFI_QUERY:
+- case FL_JEDEC_QUERY:
+- case FL_READY:
+- cfi_write(map, CMD(0x70), adr);
+- chip->state = FL_STATUS;
+-
+- case FL_STATUS:
+- status = cfi_read(map, adr);
+- if ((status & status_OK) == status_OK)
+- break;
+-
+- /* Urgh. Chip not yet ready to talk to us. */
+- if (time_after(jiffies, timeo)) {
+- spin_unlock(chip->mutex);
+- printk(KERN_ERR "%s: waiting for chip to be ready timed out\n", __FUNCTION__);
+- return -EIO;
+- }
+-
+- /* Latency issues. Drop the lock, wait a while and retry */
+- spin_unlock(chip->mutex);
+- cfi_udelay(1);
+- goto retry;
+-
+- default:
+- /* Stick ourselves on a wait queue to be woken when
+- someone changes the status */
+- set_current_state(TASK_UNINTERRUPTIBLE);
+- add_wait_queue(&chip->wq, &wait);
++ ret = get_chip(map, chip, adr, FL_LOCKING);
++ if (ret) {
+ spin_unlock(chip->mutex);
+- schedule();
+- remove_wait_queue(&chip->wq, &wait);
+- timeo = jiffies + HZ;
+- goto retry;
++ return ret;
+ }
+
+ ENABLE_VPP(map);
+@@ -1823,8 +1552,7 @@
+
+ /* Done and happy. */
+ chip->state = FL_STATUS;
+- DISABLE_VPP(map);
+- wake_up(&chip->wq);
++ put_chip(map, chip, adr);
+ spin_unlock(chip->mutex);
+ return 0;
+ }
+@@ -1889,22 +1617,23 @@
+
+ spin_lock(chip->mutex);
+
+- switch(chip->state) {
++ switch (chip->state) {
+ case FL_READY:
+ case FL_STATUS:
+ case FL_CFI_QUERY:
+ case FL_JEDEC_QUERY:
++ if (chip->oldstate == FL_READY) {
+ chip->oldstate = chip->state;
+ chip->state = FL_PM_SUSPENDED;
+ /* No need to wake_up() on this state change -
+ * as the whole point is that nobody can do anything
+ * with the chip now anyway.
+ */
+- case FL_PM_SUSPENDED:
++ }
+ break;
+-
+ default:
+ ret = -EAGAIN;
++ case FL_PM_SUSPENDED:
+ break;
+ }
+ spin_unlock(chip->mutex);
+diff -Nurb linux-mips-2.4.27/drivers/mtd/chips/cfi_cmdset_0002.c linux/drivers/mtd/chips/cfi_cmdset_0002.c
+--- linux-mips-2.4.27/drivers/mtd/chips/cfi_cmdset_0002.c 2003-02-26 01:53:49.000000000 +0100
++++ linux/drivers/mtd/chips/cfi_cmdset_0002.c 2004-11-19 10:25:11.745223200 +0100
+@@ -6,16 +6,22 @@
+ *
+ * 2_by_8 routines added by Simon Munton
+ *
++ * 4_by_16 work by Carolyn J. Smith
++ *
++ * Occasionally maintained by Thayne Harbaugh tharbaugh at lnxi dot com
++ *
+ * This code is GPL
+ *
+- * $Id: cfi_cmdset_0002.c,v 1.62 2003/01/24 23:30:13 dwmw2 Exp $
++ * $Id: cfi_cmdset_0002.c,v 1.94 2004/01/27 10:16:20 dvrabel Exp $
+ *
+ */
+
++#include <linux/config.h>
+ #include <linux/module.h>
+ #include <linux/types.h>
+ #include <linux/kernel.h>
+ #include <linux/sched.h>
++#include <linux/init.h>
+ #include <asm/io.h>
+ #include <asm/byteorder.h>
+
+@@ -23,16 +29,50 @@
+ #include <linux/slab.h>
+ #include <linux/delay.h>
+ #include <linux/interrupt.h>
++#include <linux/mtd/compatmac.h>
+ #include <linux/mtd/map.h>
++#include <linux/mtd/mtd.h>
+ #include <linux/mtd/cfi.h>
+
+ #define AMD_BOOTLOC_BUG
++#define FORCE_WORD_WRITE 0
++
++
++/*
++ * This is an attempt to coalesce the retry logic in one place - that way
++ * there aren't #ifdefs scattered throughout.
++ */
++#ifdef CONFIG_MTD_CFI_AMDSTD_RETRY
++
++#ifndef CONFIG_MTD_CFI_AMDSTD_RETRY_MAX
++#define CONFIG_MTD_CFI_AMDSTD_RETRY_MAX 0
++#endif
++
++#define RETRY_CMD_LABEL retry_cmd: do {} while (0)
++#define HANDLE_WACKY_STATE() handle_wacky_state(__func__, retry_cmd_cnt, adr, datum, prev_oldstatus, prev_status, oldstatus, status)
++static int retry_cmd_max = CONFIG_MTD_CFI_AMDSTD_RETRY_MAX;
++#define DECLARE_RETRY_CMD_CNT() int retry_cmd_cnt = 0
++#ifdef CONFIG_MTD_CFI_AMDSTD_RETRY
++#define CHECK_RETRIES() do { if (++retry_cmd_cnt <= retry_cmd_max) goto retry_cmd; } while (0)
++#endif
++
++#else
++
++#define RETRY_CMD_LABEL do {} while (0)
++#define HANDLE_WACKY_STATE() handle_wacky_state(__func__, adr, datum, prev_oldstatus, prev_status, oldstatus, status)
++#define DECLARE_RETRY_CMD_CNT()
++#define CHECK_RETRIES()
++
++#endif /* !defined(CONFIG_MTD_CFI_AMDSTD_RETRY) */
++
+
+ static int cfi_amdstd_read (struct mtd_info *, loff_t, size_t, size_t *, u_char *);
+-static int cfi_amdstd_write(struct mtd_info *, loff_t, size_t, size_t *, const u_char *);
++static int cfi_amdstd_write_words(struct mtd_info *, loff_t, size_t, size_t *, const u_char *);
++static int cfi_amdstd_write_buffers(struct mtd_info *, loff_t, size_t, size_t *, const u_char *);
+ static int cfi_amdstd_erase_chip(struct mtd_info *, struct erase_info *);
+-static int cfi_amdstd_erase_onesize(struct mtd_info *, struct erase_info *);
+ static int cfi_amdstd_erase_varsize(struct mtd_info *, struct erase_info *);
++static int cfi_amdstd_lock_varsize(struct mtd_info *, loff_t, size_t);
++static int cfi_amdstd_unlock_varsize(struct mtd_info *, loff_t, size_t);
+ static void cfi_amdstd_sync (struct mtd_info *);
+ static int cfi_amdstd_suspend (struct mtd_info *);
+ static void cfi_amdstd_resume (struct mtd_info *);
+@@ -45,55 +85,136 @@
+
+
+ static struct mtd_chip_driver cfi_amdstd_chipdrv = {
+- probe: NULL, /* Not usable directly */
+- destroy: cfi_amdstd_destroy,
+- name: "cfi_cmdset_0002",
+- module: THIS_MODULE
++ .probe = NULL, /* Not usable directly */
++ .destroy = cfi_amdstd_destroy,
++ .name = "cfi_cmdset_0002",
++ .module = THIS_MODULE
+ };
+
+-struct mtd_info *cfi_cmdset_0002(struct map_info *map, int primary)
++
++/* #define DEBUG_LOCK_BITS */
++/* #define DEBUG_CFI_FEATURES */
++
++
++#ifdef DEBUG_CFI_FEATURES
++static void cfi_tell_features(struct cfi_pri_amdstd *extp)
+ {
+- struct cfi_private *cfi = map->fldrv_priv;
+- unsigned char bootloc;
+- int ofs_factor = cfi->interleave * cfi->device_type;
+- int i;
+- __u8 major, minor;
+- __u32 base = cfi->chips[0].start;
++ const char* erase_suspend[3] = {
++ "Not supported", "Read only", "Read/write"
++ };
++ const char* top_bottom[6] = {
++ "No WP", "8x8KiB sectors at top & bottom, no WP",
++ "Bottom boot", "Top boot",
++ "Uniform, Bottom WP", "Uniform, Top WP"
++ };
++
++ printk(" Silicon revision: %d\n", extp->SiliconRevision >> 1);
++ printk(" Address sensitive unlock: %s\n",
++ (extp->SiliconRevision & 1) ? "Not required" : "Required");
+
+- if (cfi->cfi_mode==CFI_MODE_CFI){
+- __u16 adr = primary?cfi->cfiq->P_ADR:cfi->cfiq->A_ADR;
++ if (extp->EraseSuspend < ARRAY_SIZE(erase_suspend))
++ printk(" Erase Suspend: %s\n", erase_suspend[extp->EraseSuspend]);
++ else
++ printk(" Erase Suspend: Unknown value %d\n", extp->EraseSuspend);
+
+- cfi_send_gen_cmd(0x98, 0x55, base, map, cfi, cfi->device_type, NULL);
++ if (extp->BlkProt == 0)
++ printk(" Block protection: Not supported\n");
++ else
++ printk(" Block protection: %d sectors per group\n", extp->BlkProt);
++
++
++ printk(" Temporary block unprotect: %s\n",
++ extp->TmpBlkUnprotect ? "Supported" : "Not supported");
++ printk(" Block protect/unprotect scheme: %d\n", extp->BlkProtUnprot);
++ printk(" Number of simultaneous operations: %d\n", extp->SimultaneousOps);
++ printk(" Burst mode: %s\n",
++ extp->BurstMode ? "Supported" : "Not supported");
++ if (extp->PageMode == 0)
++ printk(" Page mode: Not supported\n");
++ else
++ printk(" Page mode: %d word page\n", extp->PageMode << 2);
+
+- major = cfi_read_query(map, base + (adr+3)*ofs_factor);
+- minor = cfi_read_query(map, base + (adr+4)*ofs_factor);
++ printk(" Vpp Supply Minimum Program/Erase Voltage: %d.%d V\n",
++ extp->VppMin >> 4, extp->VppMin & 0xf);
++ printk(" Vpp Supply Maximum Program/Erase Voltage: %d.%d V\n",
++ extp->VppMax >> 4, extp->VppMax & 0xf);
+
+- printk(KERN_NOTICE " Amd/Fujitsu Extended Query Table v%c.%c at 0x%4.4X\n",
+- major, minor, adr);
+- cfi_send_gen_cmd(0xf0, 0x55, base, map, cfi, cfi->device_type, NULL);
+-
+- cfi_send_gen_cmd(0xaa, 0x555, base, map, cfi, cfi->device_type, NULL);
+- cfi_send_gen_cmd(0x55, 0x2aa, base, map, cfi, cfi->device_type, NULL);
+- cfi_send_gen_cmd(0x90, 0x555, base, map, cfi, cfi->device_type, NULL);
+- cfi->mfr = cfi_read_query(map, base);
+- cfi->id = cfi_read_query(map, base + ofs_factor);
++ if (extp->TopBottom < ARRAY_SIZE(top_bottom))
++ printk(" Top/Bottom Boot Block: %s\n", top_bottom[extp->TopBottom]);
++ else
++ printk(" Top/Bottom Boot Block: Unknown value %d\n", extp->TopBottom);
++}
++#endif
+
+- /* Wheee. Bring me the head of someone at AMD. */
+ #ifdef AMD_BOOTLOC_BUG
++/* Wheee. Bring me the head of someone at AMD. */
++static void fixup_amd_bootblock(struct map_info *map, void* param)
++{
++ struct cfi_private *cfi = map->fldrv_priv;
++ struct cfi_pri_amdstd *extp = cfi->cmdset_priv;
++ __u8 major = extp->MajorVersion;
++ __u8 minor = extp->MinorVersion;
++
+ if (((major << 8) | minor) < 0x3131) {
+ /* CFI version 1.0 => don't trust bootloc */
+ if (cfi->id & 0x80) {
+ printk(KERN_WARNING "%s: JEDEC Device ID is 0x%02X. Assuming broken CFI table.\n", map->name, cfi->id);
+- bootloc = 3; /* top boot */
++ extp->TopBottom = 3; /* top boot */
+ } else {
+- bootloc = 2; /* bottom boot */
++ extp->TopBottom = 2; /* bottom boot */
+ }
+- } else
++ }
++}
+ #endif
++
++static struct cfi_fixup fixup_table[] = {
++#ifdef AMD_BOOTLOC_BUG
+ {
+- cfi_send_gen_cmd(0x98, 0x55, base, map, cfi, cfi->device_type, NULL);
+- bootloc = cfi_read_query(map, base + (adr+15)*ofs_factor);
++ 0x0001, /* AMD */
++ CFI_ID_ANY,
++ fixup_amd_bootblock, NULL
++ },
++#endif
++ { 0, 0, NULL, NULL }
++};
++
++
++struct mtd_info *cfi_cmdset_0002(struct map_info *map, int primary)
++{
++ struct cfi_private *cfi = map->fldrv_priv;
++ unsigned char bootloc;
++ int i;
++
++ if (cfi->cfi_mode==CFI_MODE_CFI){
++ /*
++ * It's a real CFI chip, not one for which the probe
++ * routine faked a CFI structure. So we read the feature
++ * table from it.
++ */
++ __u16 adr = primary?cfi->cfiq->P_ADR:cfi->cfiq->A_ADR;
++ struct cfi_pri_amdstd *extp;
++
++ extp = (struct cfi_pri_amdstd*)cfi_read_pri(map, adr, sizeof(*extp), "Amd/Fujitsu");
++ if (!extp)
++ return NULL;
++
++ /* Install our own private info structure */
++ cfi->cmdset_priv = extp;
++
++ cfi_fixup(map, fixup_table);
++
++#ifdef DEBUG_CFI_FEATURES
++ /* Tell the user about it in lots of lovely detail */
++ cfi_tell_features(extp);
++#endif
++
++ bootloc = extp->TopBottom;
++ if ((bootloc != 2) && (bootloc != 3)) {
++ printk(KERN_WARNING "%s: CFI does not contain boot "
++ "bank location. Assuming top.\n", map->name);
++ bootloc = 2;
+ }
++
+ if (bootloc == 3 && cfi->cfiq->NumEraseRegions > 1) {
+ printk(KERN_WARNING "%s: Swapping erase regions for broken CFI table.\n", map->name);
+
+@@ -106,6 +227,11 @@
+ cfi->cfiq->EraseRegionInfo[j] = swap;
+ }
+ }
++ /*
++ * These might already be setup (more correctly) by
++ * jedec_probe.c - still need it for cfi_probe.c path.
++ */
++ if ( ! (cfi->addr_unlock1 && cfi->addr_unlock2) ) {
+ switch (cfi->device_type) {
+ case CFI_DEVICETYPE_X8:
+ cfi->addr_unlock1 = 0x555;
+@@ -125,9 +251,13 @@
+ cfi->addr_unlock2 = 0xaaa;
+ break;
+ default:
+- printk(KERN_NOTICE "Eep. Unknown cfi_cmdset_0002 device type %d\n", cfi->device_type);
++ printk(KERN_WARNING
++ "MTD %s(): Unsupported device type %d\n",
++ __func__, cfi->device_type);
+ return NULL;
+ }
++ }
++
+ } /* CFI mode */
+
+ for (i=0; i< cfi->numchips; i++) {
+@@ -138,15 +268,17 @@
+
+ map->fldrv = &cfi_amdstd_chipdrv;
+
+- cfi_send_gen_cmd(0xf0, 0x55, base, map, cfi, cfi->device_type, NULL);
+ return cfi_amdstd_setup(map);
+ }
+
++
+ static struct mtd_info *cfi_amdstd_setup(struct map_info *map)
+ {
+ struct cfi_private *cfi = map->fldrv_priv;
+ struct mtd_info *mtd;
+ unsigned long devsize = (1<<cfi->cfiq->DevSize) * cfi->interleave;
++ unsigned long offset = 0;
++ int i,j;
+
+ mtd = kmalloc(sizeof(*mtd), GFP_KERNEL);
+ printk(KERN_NOTICE "number of %s chips: %d\n",
+@@ -163,15 +295,9 @@
+ /* Also select the correct geometry setup too */
+ mtd->size = devsize * cfi->numchips;
+
+- if (cfi->cfiq->NumEraseRegions == 1) {
+- /* No need to muck about with multiple erase sizes */
+- mtd->erasesize = ((cfi->cfiq->EraseRegionInfo[0] >> 8) & ~0xff) * cfi->interleave;
+- } else {
+- unsigned long offset = 0;
+- int i,j;
+-
+ mtd->numeraseregions = cfi->cfiq->NumEraseRegions * cfi->numchips;
+- mtd->eraseregions = kmalloc(sizeof(struct mtd_erase_region_info) * mtd->numeraseregions, GFP_KERNEL);
++ mtd->eraseregions = kmalloc(sizeof(struct mtd_erase_region_info)
++ * mtd->numeraseregions, GFP_KERNEL);
+ if (!mtd->eraseregions) {
+ printk(KERN_WARNING "Failed to allocate memory for MTD erase region info\n");
+ goto setup_err;
+@@ -206,39 +332,52 @@
+ mtd->eraseregions[i].numblocks);
+ }
+ #endif
+- }
+
+ switch (CFIDEV_BUSWIDTH)
+ {
+ case 1:
+ case 2:
+ case 4:
+-#if 1
+- if (mtd->numeraseregions > 1)
+- mtd->erase = cfi_amdstd_erase_varsize;
+- else
++#ifdef CFI_WORD_64
++ case 8:
+ #endif
+- if (((cfi->cfiq->EraseRegionInfo[0] & 0xffff) + 1) == 1)
++ if (mtd->numeraseregions == 1
++ && ((cfi->cfiq->EraseRegionInfo[0] & 0xffff) + 1) == 1) {
+ mtd->erase = cfi_amdstd_erase_chip;
+- else
+- mtd->erase = cfi_amdstd_erase_onesize;
++ } else {
++ mtd->erase = cfi_amdstd_erase_varsize;
++ mtd->lock = cfi_amdstd_lock_varsize;
++ mtd->unlock = cfi_amdstd_unlock_varsize;
++ }
++
++ if ( cfi->cfiq->BufWriteTimeoutTyp && !FORCE_WORD_WRITE) {
++ DEBUG(MTD_DEBUG_LEVEL1, "Using buffer write method\n" );
++ mtd->write = cfi_amdstd_write_buffers;
++ } else {
++ DEBUG(MTD_DEBUG_LEVEL1, "Using word write method\n" );
++ mtd->write = cfi_amdstd_write_words;
++ }
++
+ mtd->read = cfi_amdstd_read;
+- mtd->write = cfi_amdstd_write;
+ break;
+
+ default:
+- printk(KERN_WARNING "Unsupported buswidth\n");
++ printk(KERN_WARNING "MTD %s(): Unsupported buswidth %d\n",
++ __func__, CFIDEV_BUSWIDTH);
+ goto setup_err;
+ break;
+ }
+ if (cfi->fast_prog) {
+- /* In cfi_amdstd_write() we frob the protection stuff
++ /* In cfi_amdstd_write_words() we frob the protection stuff
+ without paying any attention to the state machine.
+ This upsets in-progress erases. So we turn this flag
+ off for now till the code gets fixed. */
+ printk(KERN_NOTICE "cfi_cmdset_0002: Disabling fast programming due to code brokenness.\n");
+ cfi->fast_prog = 0;
+ }
++ /* FIXME: erase-suspend-program is broken. See
++ http://lists.infradead.org/pipermail/linux-mtd/2003-December/009001.html */
++ printk(KERN_NOTICE "cfi_cmdset_0002: Disabling erase-suspend-program due to code brokenness.\n");
+
+
+ /* does this chip have a secsi area? */
+@@ -266,7 +405,7 @@
+ mtd->flags = MTD_CAP_NORFLASH;
+ map->fldrv = &cfi_amdstd_chipdrv;
+ mtd->name = map->name;
+- MOD_INC_USE_COUNT;
++ __module_get(THIS_MODULE);
+ return mtd;
+
+ setup_err:
+@@ -280,46 +419,210 @@
+ return NULL;
+ }
+
+-static inline int do_read_onechip(struct map_info *map, struct flchip *chip, loff_t adr, size_t len, u_char *buf)
++
++/* This is more work to coalesce the retry #ifdefs in one location */
++static inline void handle_wacky_state(const char *func,
++#ifdef CONFIG_MTD_CFI_AMDSTD_RETRY
++ int retry_cmd_cnt,
++#endif
++ unsigned long adr,
++ cfi_word datum,
++ cfi_word prev_oldstatus,
++ cfi_word prev_status,
++ cfi_word oldstatus,
++ cfi_word status)
++{
++#ifdef CONFIG_MTD_CFI_AMDSTD_RETRY
++ if ( retry_cmd_cnt == retry_cmd_max ) {
++#endif
++ printk(KERN_WARNING
++ "MTD %s(): Wacky! Unable to decode failure status\n"
++ "Possible buggy device - try "
++#ifdef CONFIG_MTD_CFI_AMDSTD_RETRY
++ "increasing retry_cmd_max from %d\n"
++#else
++ "enabling CONFIG_MTD_CFI_AMDSTD_RETRY\n"
++ "in your kernel config and setting driver retry_cmd_max\n"
++#endif
++ , func
++#ifdef CONFIG_MTD_CFI_AMDSTD_RETRY
++ , retry_cmd_max
++#endif
++ );
++
++ printk(KERN_WARNING
++ "MTD %s(): 0x%.8lx(0x%.8x): 0x%.8x 0x%.8x 0x%.8x 0x%.8x\n",
++ func, adr, datum,
++ prev_oldstatus, prev_status,
++ oldstatus, status);
++#ifdef CONFIG_MTD_CFI_AMDSTD_RETRY
++ }
++#endif
++}
++
++
++static int get_chip(struct map_info *map, struct flchip *chip, unsigned long adr, int mode)
+ {
+ DECLARE_WAITQUEUE(wait, current);
+- unsigned long timeo = jiffies + HZ;
++ struct cfi_private *cfi = map->fldrv_priv;
++ cfi_word status, oldstatus;
++ cfi_word dq6 = CMD(1<<6);
++ cfi_word dq2 = CMD(1<<2);
++ unsigned long timeo;
++ struct cfi_pri_amdstd *cfip = (struct cfi_pri_amdstd *)cfi->cmdset_priv;
+
++ resettime:
++ timeo = jiffies + HZ;
+ retry:
++ switch (chip->state) {
++
++ case FL_STATUS:
++ for (;;) {
++ oldstatus = cfi_read(map, adr);
++ status = cfi_read(map, adr);
++ if (((oldstatus ^ status) & (dq6 | dq2)) == 0)
++ break;
++
++ if (time_after(jiffies, timeo)) {
++ printk(KERN_ERR "Waiting for chip to be ready timed out. Status %llx\n",
++ (long long)status);
++ cfi_spin_unlock(chip->mutex);
++ return -EIO;
++ }
++ cfi_spin_unlock(chip->mutex);
++ cfi_udelay(1);
+ cfi_spin_lock(chip->mutex);
++ /* Someone else might have been playing with it. */
++ goto retry;
++ }
+
+- if (chip->state != FL_READY){
+-#if 0
+- printk(KERN_DEBUG "Waiting for chip to read, status = %d\n", chip->state);
+-#endif
+- set_current_state(TASK_UNINTERRUPTIBLE);
+- add_wait_queue(&chip->wq, &wait);
++ case FL_READY:
++ case FL_CFI_QUERY:
++ case FL_JEDEC_QUERY:
++ return 0;
++
++ case FL_ERASING:
++ if (mode == FL_WRITING) /* FIXME: Erase-suspend-program appears broken. */
++ goto sleep;
++
++ if (!(mode == FL_READY || mode == FL_POINT
++ || (mode == FL_WRITING && (cfip->EraseSuspend & 0x2))
++ || (mode == FL_WRITING && (cfip->EraseSuspend & 0x1))))
++ goto sleep;
++
++ oldstatus = cfi_read(map, adr);
++ status = cfi_read(map, adr);
++ if ((oldstatus ^ status) & dq2) {
++ printk(KERN_ERR "Can't suspend erase -- block in progress\n");
++ goto sleep;
++ }
++
++ /* Erase suspend */
++ /* FIXME - is there a way to verify suspend? */
++ cfi_write(map, CMD(0xB0), chip->in_progress_block_addr);
++ chip->oldstate = FL_ERASING;
++ chip->state = FL_ERASE_SUSPENDING;
++ chip->erase_suspended = 1;
++ for (;;) {
++ oldstatus = cfi_read(map, chip->in_progress_block_addr);
++ status = cfi_read(map, chip->in_progress_block_addr);
++ if (((oldstatus ^ status) & dq6) == 0)
++ break;
++
++ if (time_after(jiffies, timeo)) {
++ /* Urgh. Resume and pretend we weren't here. */
++ /* FIXME - is there a way to verify resume? */
++ cfi_write(map, CMD(0x30), chip->in_progress_block_addr);
++ chip->state = FL_ERASING;
++ chip->oldstate = FL_READY;
++ printk(KERN_ERR "Chip not ready after erase "
++ "suspended: status = 0x%x\n", status);
++ return -EIO;
++ }
+
+ cfi_spin_unlock(chip->mutex);
++ cfi_udelay(1);
++ cfi_spin_lock(chip->mutex);
++ /* Nobody will touch it while it's in state FL_ERASE_SUSPENDING.
++ So we can just loop here. */
++ }
++ chip->state = FL_READY;
++ return 0;
++
++ case FL_POINT:
++ /* Only if there's no operation suspended... */
++ if (mode == FL_READY && chip->oldstate == FL_READY)
++ return 0;
+
++ default:
++ sleep:
++ set_current_state(TASK_UNINTERRUPTIBLE);
++ add_wait_queue(&chip->wq, &wait);
++ cfi_spin_unlock(chip->mutex);
+ schedule();
+ remove_wait_queue(&chip->wq, &wait);
+-#if 0
+- if(signal_pending(current))
+- return -EINTR;
+-#endif
+- timeo = jiffies + HZ;
++ cfi_spin_lock(chip->mutex);
++ goto resettime;
++ }
++}
+
+- goto retry;
++
++static void put_chip(struct map_info *map, struct flchip *chip, unsigned long adr)
++{
++ struct cfi_private *cfi = map->fldrv_priv;
++
++ switch(chip->oldstate) {
++ case FL_ERASING:
++ chip->state = chip->oldstate;
++ cfi_write(map, CMD(0x30), chip->in_progress_block_addr);
++ chip->oldstate = FL_READY;
++ chip->state = FL_ERASING;
++ break;
++
++ case FL_READY:
++ case FL_STATUS:
++ /* We should really make set_vpp() count, rather than doing this */
++ DISABLE_VPP(map);
++ break;
++ default:
++ printk(KERN_ERR "MTD: put_chip() called with oldstate %d!!\n", chip->oldstate);
+ }
++ wake_up(&chip->wq);
++}
++
++
++static inline int do_read_onechip(struct map_info *map, struct flchip *chip, loff_t adr, size_t len, u_char *buf)
++{
++ unsigned long cmd_addr;
++ struct cfi_private *cfi = map->fldrv_priv;
++ int ret;
+
+ adr += chip->start;
+
++ /* Ensure cmd read/writes are aligned. */
++ cmd_addr = adr & ~(CFIDEV_BUSWIDTH-1);
++
++ cfi_spin_lock(chip->mutex);
++ ret = get_chip(map, chip, cmd_addr, FL_READY);
++ if (ret) {
++ cfi_spin_unlock(chip->mutex);
++ return ret;
++ }
++
++ if (chip->state != FL_POINT && chip->state != FL_READY) {
++ cfi_write(map, CMD(0xf0), cmd_addr);
+ chip->state = FL_READY;
++ }
+
+- map->copy_from(map, buf, adr, len);
++ map_copy_from(map, buf, adr, len);
+
+- wake_up(&chip->wq);
+- cfi_spin_unlock(chip->mutex);
++ put_chip(map, chip, cmd_addr);
+
++ cfi_spin_unlock(chip->mutex);
+ return 0;
+ }
+
++
+ static int cfi_amdstd_read (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf)
+ {
+ struct map_info *map = mtd->priv;
+@@ -361,6 +664,7 @@
+ return ret;
+ }
+
++
+ static inline int do_read_secsi_onechip(struct map_info *map, struct flchip *chip, loff_t adr, size_t len, u_char *buf)
+ {
+ DECLARE_WAITQUEUE(wait, current);
+@@ -394,12 +698,14 @@
+
+ chip->state = FL_READY;
+
++ /* should these be CFI_DEVICETYPE_X8 instead of cfi->device_type? */
+ cfi_send_gen_cmd(0xAA, cfi->addr_unlock1, chip->start, map, cfi, cfi->device_type, NULL);
+ cfi_send_gen_cmd(0x55, cfi->addr_unlock2, chip->start, map, cfi, cfi->device_type, NULL);
+ cfi_send_gen_cmd(0x88, cfi->addr_unlock1, chip->start, map, cfi, cfi->device_type, NULL);
+
+- map->copy_from(map, buf, adr, len);
++ map_copy_from(map, buf, adr, len);
+
++ /* should these be CFI_DEVICETYPE_X8 instead of cfi->device_type? */
+ cfi_send_gen_cmd(0xAA, cfi->addr_unlock1, chip->start, map, cfi, cfi->device_type, NULL);
+ cfi_send_gen_cmd(0x55, cfi->addr_unlock2, chip->start, map, cfi, cfi->device_type, NULL);
+ cfi_send_gen_cmd(0x90, cfi->addr_unlock1, chip->start, map, cfi, cfi->device_type, NULL);
+@@ -454,125 +760,241 @@
+ return ret;
+ }
+
+-static int do_write_oneword(struct map_info *map, struct flchip *chip, unsigned long adr, __u32 datum, int fast)
++
++static int do_write_oneword(struct map_info *map, struct flchip *chip, unsigned long adr, cfi_word datum, int fast)
+ {
+- unsigned long timeo = jiffies + HZ;
+- unsigned int oldstatus, status;
+- unsigned int dq6, dq5;
+ struct cfi_private *cfi = map->fldrv_priv;
+- DECLARE_WAITQUEUE(wait, current);
++ unsigned long timeo = jiffies + HZ;
++ cfi_word oldstatus, status, prev_oldstatus, prev_status;
++ cfi_word dq6 = CMD(1<<6);
++ /*
++ * We use a 1ms + 1 jiffies generic timeout for writes (most devices
++ * have a max write time of a few hundreds usec). However, we should
++ * use the maximum timeout value given by the chip at probe time
++ * instead. Unfortunately, struct flchip does have a field for
++ * maximum timeout, only for typical which can be far too short
++ * depending of the conditions. The ' + 1' is to avoid having a
++ * timeout of 0 jiffies if HZ is smaller than 1000.
++ */
++ unsigned long uWriteTimeout = ( HZ / 1000 ) + 1;
+ int ret = 0;
++ int ta = 0;
++ DECLARE_RETRY_CMD_CNT();
+
+- retry:
+- cfi_spin_lock(chip->mutex);
+-
+- if (chip->state != FL_READY) {
+-#if 0
+- printk(KERN_DEBUG "Waiting for chip to write, status = %d\n", chip->state);
+-#endif
+- set_current_state(TASK_UNINTERRUPTIBLE);
+- add_wait_queue(&chip->wq, &wait);
++ adr += chip->start;
+
++ cfi_spin_lock(chip->mutex);
++ ret = get_chip(map, chip, adr, FL_WRITING);
++ if (ret) {
+ cfi_spin_unlock(chip->mutex);
+-
+- schedule();
+- remove_wait_queue(&chip->wq, &wait);
+-#if 0
+- printk(KERN_DEBUG "Wake up to write:\n");
+- if(signal_pending(current))
+- return -EINTR;
+-#endif
+- timeo = jiffies + HZ;
+-
+- goto retry;
++ return ret;
+ }
+
+- chip->state = FL_WRITING;
++ RETRY_CMD_LABEL;
++ DEBUG( MTD_DEBUG_LEVEL3, "MTD %s(): WRITE 0x%.8lx(0x%.8x)\n",
++ __func__, adr, datum );
++
++ /*
++ * Check for a NOP for the case when the datum to write is already
++ * present - it saves time and works around buggy chips that corrupt
++ * data at other locations when 0xff is written to a location that
++ * already contains 0xff.
++ */
++ status = cfi_read(map, adr);
++ if (status == datum) {
++ DEBUG( MTD_DEBUG_LEVEL3, "MTD %s(): NOP 0x%.8x == 0x%.8x\n",
++ __func__, status, datum );
++ goto op_done;
++ }
+
+- adr += chip->start;
+ ENABLE_VPP(map);
+ if (fast) { /* Unlock bypass */
+ cfi_send_gen_cmd(0xA0, 0, chip->start, map, cfi, cfi->device_type, NULL);
+- }
+- else {
++ } else {
++ /*
++ * The CFI_DEVICETYPE_X8 argument is needed even when
++ * cfi->device_type != CFI_DEVICETYPE_X8. The addresses for
++ * command sequences don't scale even when the device is
++ * wider. This is the case for many of the cfi_send_gen_cmd()
++ * below. I'm not sure, however, why some use
++ * cfi->device_type.
++ */
+ cfi_send_gen_cmd(0xAA, cfi->addr_unlock1, chip->start, map, cfi, CFI_DEVICETYPE_X8, NULL);
+ cfi_send_gen_cmd(0x55, cfi->addr_unlock2, chip->start, map, cfi, CFI_DEVICETYPE_X8, NULL);
+ cfi_send_gen_cmd(0xA0, cfi->addr_unlock1, chip->start, map, cfi, CFI_DEVICETYPE_X8, NULL);
+ }
+-
+ cfi_write(map, datum, adr);
++ chip->state = FL_WRITING;
+
+ cfi_spin_unlock(chip->mutex);
+ cfi_udelay(chip->word_write_time);
+ cfi_spin_lock(chip->mutex);
+
+- /* Polling toggle bits instead of reading back many times
+- This ensures that write operation is really completed,
+- or tells us why it failed. */
+- dq6 = CMD(1<<6);
+- dq5 = CMD(1<<5);
+- timeo = jiffies + (HZ/1000); /* setting timeout to 1ms for now */
++ /*
++ * Polling toggle bits instead of reading back many times This ensures
++ * that write operation is really completed, or tells us why it
++ * failed.
++ *
++ * It may appear that the polling and decoding of error state might be
++ * simplified. Don't do it unless you really know what you are doing.
++ *
++ * You must remember that JESD21-C 3.5.3 states that the status must
++ * be read back an _additional_ two times before a failure is
++ * determined. This is because these devices have internal state
++ * machines that are asynchronous to the external data bus. During an
++ * erase or write the read-back status of the polling bits might be
++ * transitioning internaly when the external read-back occurs. This
++ * means that the bits aren't in the final state and they might appear
++ * to report an error as they are in a transient state: dq7 is
++ * asynchronous with dq6 and other status bits.
++ *
++ * This asynchronous behaviour can cause infrequent errors that will
++ * usually disappear the next time an erase or write happens (Try
++ * tracking those errors down!). To ensure that the bits are not in
++ * transition, the location must be read-back two more times and
++ * compared against what was written - BOTH reads MUST match what was
++ * written. Don't think this can be simplified to only the last read
++ * matching the datum written: status bits *can* match the datum
++ * written.
++ *
++ * If the final comparison fails, error state can *then* be decoded.
++ *
++ * - Thayne Harbaugh
++ */
++ /* See comment above for timeout value. */
++ timeo = jiffies + uWriteTimeout;
++ for (;;) {
++ if (chip->state != FL_WRITING) {
++ /* Someone's suspended the write. Sleep */
++ DECLARE_WAITQUEUE(wait, current);
++
++ set_current_state(TASK_UNINTERRUPTIBLE);
++ add_wait_queue(&chip->wq, &wait);
++ cfi_spin_unlock(chip->mutex);
++ schedule();
++ remove_wait_queue(&chip->wq, &wait);
++ timeo = jiffies + (HZ / 2); /* FIXME */
++ cfi_spin_lock(chip->mutex);
++ continue;
++ }
+
+ oldstatus = cfi_read(map, adr);
+ status = cfi_read(map, adr);
++ DEBUG( MTD_DEBUG_LEVEL3, "MTD %s(): Check 0x%.8x 0x%.8x\n",
++ __func__, oldstatus, status );
+
+- while( (status & dq6) != (oldstatus & dq6) &&
+- (status & dq5) != dq5 &&
+- !time_after(jiffies, timeo) ) {
++ /*
++ * This only checks if dq6 is still toggling and that our
++ * timer hasn't expired. We purposefully ignore the chip's
++ * internal timer that will assert dq5 and leave dq6 toggling.
++ * This is done for a variety of reasons:
++ *
++ * 1) Not all chips support dq5.
++ *
++ * 2) Dealing with asynchronous status bit and data updates
++ * and reading a device two more times creates _messy_ logic
++ * when trying to deal with interleaved devices - some may be
++ * changing while others are still busy.
++ *
++ * 3) Checking dq5 only helps to optimize an error case that
++ * should at worst be infrequent and at best non-existent.
++ *
++ * If our timeout occurs _then_ we will check dq5 to see if
++ * the device also had an internal timeout.
++ */
++ if ( (((status ^ oldstatus) & dq6) == 0)
++ || ( ta = time_after(jiffies, timeo)) )
++ break;
+
+- if (need_resched()) {
++ /* Latency issues. Drop the lock, wait a while and retry */
+ cfi_spin_unlock(chip->mutex);
+- yield();
++ cfi_udelay(1);
+ cfi_spin_lock(chip->mutex);
+- } else
+- udelay(1);
+-
+- oldstatus = cfi_read( map, adr );
+- status = cfi_read( map, adr );
+ }
+
+- if( (status & dq6) != (oldstatus & dq6) ) {
+- /* The erasing didn't stop?? */
+- if( (status & dq5) == dq5 ) {
+- /* When DQ5 raises, we must check once again
+- if DQ6 is toggling. If not, the erase has been
+- completed OK. If not, reset chip. */
++ /*
++ * Something kicked us out of the read-back loop. We'll check success
++ * befor checking failure. Even though dq6 might be true data, it is
++ * unkown if all of the other bits have changed to true data due to
++ * the asynchronous nature of the internal state machine. We will
++ * read two more times and use this to either verify that the write
++ * completed successfully or that something really went wrong. BOTH
++ * reads must match what was written - this certifies that bits aren't
++ * still changing and that the status bits erroneously match the datum
++ * that was written.
++ */
++ prev_oldstatus = oldstatus;
++ prev_status = status;
+ oldstatus = cfi_read(map, adr);
+ status = cfi_read(map, adr);
++ DEBUG( MTD_DEBUG_LEVEL3, "MTD %s(): Check 0x%.8x 0x%.8x\n",
++ __func__, oldstatus, status );
+
+- if ( (oldstatus & 0x00FF) == (status & 0x00FF) ) {
+- printk(KERN_WARNING "Warning: DQ5 raised while program operation was in progress, however operation completed OK\n" );
++ if ( oldstatus == datum && status == datum ) {
++ /* success - do nothing */
++ goto op_done;
++ }
++
++ if ( ta ) {
++ /* Only check dq5 on the chips that are still toggling. */
++ cfi_word dq5mask = ( ( status ^ oldstatus ) & dq6 ) >> 1;
++ if ( status & dq5mask ) {
++ /* dq5 asserted - decode interleave chips */
++ printk( KERN_WARNING
++ "MTD %s(): FLASH internal timeout: 0x%.8x 0x%.8x 0x%8x\n",
++ __func__,
++ status & dq5mask, status, datum );
+ } else {
+- /* DQ5 is active so we can do a reset and stop the erase */
+- cfi_write(map, CMD(0xF0), chip->start);
+- printk(KERN_WARNING "Internal flash device timeout occurred or write operation was performed while flash was programming.\n" );
++ printk( KERN_WARNING
++ "MTD %s(): Software timed out during write.\n",
++ __func__ );
++ }
++ goto op_failed;
+ }
+- } else {
+- printk(KERN_WARNING "Waiting for write to complete timed out in do_write_oneword.");
+
++ /*
++ * If we get to here then it means that something
++ * is wrong and it's not a timeout. Something
++ * is seriously wacky! Dump some debug info.
++ */
++ /*
++ * Found a clue about the chips that reach this state.
++ * Some flash chips (SST >cough<)
++ * are horribly broken. They do not ignore traffic that is
++ * destined to other devices. This happens because some solutions
++ * are on shared busses, the erase and program sequences have
++ * have multiple commands, and the sequence is interspersed with
++ * commands destined to other devices. A good flash chip will
++ * examine the command and destination address and will ignore
++ * commands that are for other devices.
++ */
++ HANDLE_WACKY_STATE();
++
++ op_failed:
++ /* reset on all failures. */
++ cfi_write( map, CMD(0xF0), chip->start );
++ /* FIXME - should have reset delay before continuing */
++ CHECK_RETRIES();
++ ret = -EIO;
++
++ op_done:
+ chip->state = FL_READY;
+- wake_up(&chip->wq);
+- cfi_spin_unlock(chip->mutex);
+- DISABLE_VPP(map);
+- ret = -EIO;
+- }
+- }
+-
+- DISABLE_VPP(map);
+- chip->state = FL_READY;
+- wake_up(&chip->wq);
++ put_chip(map, chip, adr);
+ cfi_spin_unlock(chip->mutex);
+
+ return ret;
+ }
+
+-static int cfi_amdstd_write (struct mtd_info *mtd, loff_t to , size_t len, size_t *retlen, const u_char *buf)
++
++static int cfi_amdstd_write_words(struct mtd_info *mtd, loff_t to, size_t len,
++ size_t *retlen, const u_char *buf)
+ {
+ struct map_info *map = mtd->priv;
+ struct cfi_private *cfi = map->fldrv_priv;
+ int ret = 0;
+ int chipnum;
+ unsigned long ofs, chipstart;
++ DECLARE_WAITQUEUE(wait, current);
+
+ *retlen = 0;
+ if (!len)
+@@ -587,19 +1009,52 @@
+ unsigned long bus_ofs = ofs & ~(CFIDEV_BUSWIDTH-1);
+ int i = ofs - bus_ofs;
+ int n = 0;
+- u_char tmp_buf[4];
+- __u32 datum;
++ u_char tmp_buf[8];
++ cfi_word datum;
++
++ retry:
++ cfi_spin_lock(cfi->chips[chipnum].mutex);
++
++ if (cfi->chips[chipnum].state != FL_READY) {
++#if 0
++ printk(KERN_DEBUG "Waiting for chip to write, status = %d\n", cfi->chips[chipnum].state);
++#endif
++ set_current_state(TASK_UNINTERRUPTIBLE);
++ add_wait_queue(&cfi->chips[chipnum].wq, &wait);
++
++ cfi_spin_unlock(cfi->chips[chipnum].mutex);
++
++ schedule();
++ remove_wait_queue(&cfi->chips[chipnum].wq, &wait);
++#if 0
++ if(signal_pending(current))
++ return -EINTR;
++#endif
++ goto retry;
++ }
++
++ map_copy_from(map, tmp_buf, bus_ofs + cfi->chips[chipnum].start, CFIDEV_BUSWIDTH);
+
+- map->copy_from(map, tmp_buf, bus_ofs + cfi->chips[chipnum].start, CFIDEV_BUSWIDTH);
+- while (len && i < CFIDEV_BUSWIDTH)
+- tmp_buf[i++] = buf[n++], len--;
++ cfi_spin_unlock(cfi->chips[chipnum].mutex);
++
++ while (len && i < CFIDEV_BUSWIDTH) {
++ tmp_buf[i++] = buf[n++];
++ len--;
++ }
+
++ /* already know that buswidth > 1 */
+ if (cfi_buswidth_is_2()) {
+ datum = *(__u16*)tmp_buf;
+ } else if (cfi_buswidth_is_4()) {
+ datum = *(__u32*)tmp_buf;
++#ifdef CFI_WORD_64
++ } else if (cfi_buswidth_is_8()) {
++ datum = *(__u64*)tmp_buf;
++#endif
+ } else {
+- return -EINVAL; /* should never happen, but be safe */
++ printk(KERN_WARNING "MTD %s(): Unsupported buswidth %d\n",
++ __func__, CFIDEV_BUSWIDTH);
++ return -EINVAL;
+ }
+
+ ret = do_write_oneword(map, &cfi->chips[chipnum],
+@@ -628,7 +1083,7 @@
+
+ /* We are now aligned, write as much as possible */
+ while(len >= CFIDEV_BUSWIDTH) {
+- __u32 datum;
++ cfi_word datum;
+
+ if (cfi_buswidth_is_1()) {
+ datum = *(__u8*)buf;
+@@ -636,7 +1091,13 @@
+ datum = *(__u16*)buf;
+ } else if (cfi_buswidth_is_4()) {
+ datum = *(__u32*)buf;
++#ifdef CFI_WORD_64
++ } else if (cfi_buswidth_is_8()) {
++ datum = *(__u64*)buf;
++#endif
+ } else {
++ printk(KERN_WARNING "MTD %s(): Unsupported buswidth %d\n",
++ __func__, CFIDEV_BUSWIDTH);
+ return -EINVAL;
+ }
+ ret = do_write_oneword(map, &cfi->chips[chipnum],
+@@ -685,10 +1146,34 @@
+ /* Write the trailing bytes if any */
+ if (len & (CFIDEV_BUSWIDTH-1)) {
+ int i = 0, n = 0;
+- u_char tmp_buf[4];
+- __u32 datum;
++ u_char tmp_buf[8];
++ cfi_word datum;
++
++ retry1:
++ cfi_spin_lock(cfi->chips[chipnum].mutex);
++
++ if (cfi->chips[chipnum].state != FL_READY) {
++#if 0
++ printk(KERN_DEBUG "Waiting for chip to write, status = %d\n", cfi->chips[chipnum].state);
++#endif
++ set_current_state(TASK_UNINTERRUPTIBLE);
++ add_wait_queue(&cfi->chips[chipnum].wq, &wait);
++
++ cfi_spin_unlock(cfi->chips[chipnum].mutex);
++
++ schedule();
++ remove_wait_queue(&cfi->chips[chipnum].wq, &wait);
++#if 0
++ if(signal_pending(current))
++ return -EINTR;
++#endif
++ goto retry1;
++ }
++
++ map_copy_from(map, tmp_buf, ofs + cfi->chips[chipnum].start, CFIDEV_BUSWIDTH);
++
++ cfi_spin_unlock(cfi->chips[chipnum].mutex);
+
+- map->copy_from(map, tmp_buf, ofs + cfi->chips[chipnum].start, CFIDEV_BUSWIDTH);
+ while (len--)
+ tmp_buf[i++] = buf[n++];
+
+@@ -696,8 +1181,14 @@
+ datum = *(__u16*)tmp_buf;
+ } else if (cfi_buswidth_is_4()) {
+ datum = *(__u32*)tmp_buf;
++#ifdef CFI_WORD_64
++ } else if (cfi_buswidth_is_8()) {
++ datum = *(__u64*)tmp_buf;
++#endif
+ } else {
+- return -EINVAL; /* should never happen, but be safe */
++ printk(KERN_WARNING "MTD %s(): Unsupported buswidth %d\n",
++ __func__, CFIDEV_BUSWIDTH);
++ return -EINVAL;
+ }
+
+ ret = do_write_oneword(map, &cfi->chips[chipnum],
+@@ -711,289 +1202,446 @@
+ return 0;
+ }
+
+-static inline int do_erase_chip(struct map_info *map, struct flchip *chip)
++
++/*
++ * FIXME: interleaved mode not tested, and probably not supported!
++ */
++static inline int do_write_buffer(struct map_info *map, struct flchip *chip,
++ unsigned long adr, const u_char *buf, int len)
+ {
+- unsigned int oldstatus, status;
+- unsigned int dq6, dq5;
+- unsigned long timeo = jiffies + HZ;
+- unsigned int adr;
+ struct cfi_private *cfi = map->fldrv_priv;
+- DECLARE_WAITQUEUE(wait, current);
+-
+- retry:
+- cfi_spin_lock(chip->mutex);
++ unsigned long timeo = jiffies + HZ;
++ cfi_word oldstatus, status, prev_oldstatus, prev_status;
++ cfi_word dq6 = CMD(1<<6);
++ /* see comments in do_write_oneword() regarding uWriteTimeo. */
++ static unsigned long uWriteTimeout = ( HZ / 1000 ) + 1;
++ int ret = -EIO;
++ int ta = 0;
++ unsigned long cmd_adr;
++ int z, bytes, words;
++ cfi_word datum;
++ DECLARE_RETRY_CMD_CNT();
+
+- if (chip->state != FL_READY){
+- set_current_state(TASK_UNINTERRUPTIBLE);
+- add_wait_queue(&chip->wq, &wait);
++ adr += chip->start;
++ cmd_adr = adr;
+
++ cfi_spin_lock(chip->mutex);
++ ret = get_chip(map, chip, adr, FL_WRITING);
++ if (ret) {
+ cfi_spin_unlock(chip->mutex);
++ return ret;
++ }
+
+- schedule();
+- remove_wait_queue(&chip->wq, &wait);
+-#if 0
+- if(signal_pending(current))
+- return -EINTR;
++ if (cfi_buswidth_is_1()) {
++ datum = *(__u8*)buf;
++ } else if (cfi_buswidth_is_2()) {
++ datum = *(__u16*)buf;
++ } else if (cfi_buswidth_is_4()) {
++ datum = *(__u32*)buf;
++#ifdef CFI_WORD_64
++ } else if (cfi_buswidth_is_8()) {
++ datum = *(__u64*)buf;
+ #endif
+- timeo = jiffies + HZ;
+-
+- goto retry;
++ } else {
++ printk(KERN_WARNING "MTD %s(): Unsupported buswidth %d\n",
++ __func__, CFIDEV_BUSWIDTH);
++ return -EINVAL;
+ }
+
+- chip->state = FL_ERASING;
++ RETRY_CMD_LABEL;
++ DEBUG( MTD_DEBUG_LEVEL3, "MTD %s(): WRITE 0x%.8lx(0x%.8x)\n",
++ __func__, adr, datum );
+
+- /* Handle devices with one erase region, that only implement
+- * the chip erase command.
+- */
+ ENABLE_VPP(map);
+ cfi_send_gen_cmd(0xAA, cfi->addr_unlock1, chip->start, map, cfi, CFI_DEVICETYPE_X8, NULL);
+ cfi_send_gen_cmd(0x55, cfi->addr_unlock2, chip->start, map, cfi, CFI_DEVICETYPE_X8, NULL);
+- cfi_send_gen_cmd(0x80, cfi->addr_unlock1, chip->start, map, cfi, CFI_DEVICETYPE_X8, NULL);
+- cfi_send_gen_cmd(0xAA, cfi->addr_unlock1, chip->start, map, cfi, CFI_DEVICETYPE_X8, NULL);
+- cfi_send_gen_cmd(0x55, cfi->addr_unlock2, chip->start, map, cfi, CFI_DEVICETYPE_X8, NULL);
+- cfi_send_gen_cmd(0x10, cfi->addr_unlock1, chip->start, map, cfi, CFI_DEVICETYPE_X8, NULL);
+- timeo = jiffies + (HZ*20);
+- adr = cfi->addr_unlock1;
++ //cfi_send_gen_cmd(0xA0, cfi->addr_unlock1, chip->start, map, cfi, CFI_DEVICETYPE_X8, NULL);
+
+- /* Wait for the end of programing/erasure by using the toggle method.
+- * As long as there is a programming procedure going on, bit 6 of the last
+- * written byte is toggling it's state with each consectuve read.
+- * The toggling stops as soon as the procedure is completed.
+- *
+- * If the process has gone on for too long on the chip bit 5 gets.
+- * After bit5 is set you can kill the operation by sending a reset
+- * command to the chip.
+- */
+- dq6 = CMD(1<<6);
+- dq5 = CMD(1<<5);
++ /* Write Buffer Load */
++ cfi_write(map, CMD(0x25), cmd_adr);
+
+- oldstatus = cfi_read(map, adr);
+- status = cfi_read(map, adr);
+- while( ((status & dq6) != (oldstatus & dq6)) &&
+- ((status & dq5) != dq5) &&
+- !time_after(jiffies, timeo)) {
+- int wait_reps;
++ chip->state = FL_WRITING_TO_BUFFER;
++
++ /* Write length of data to come */
++ bytes = len & (CFIDEV_BUSWIDTH-1);
++ words = len / CFIDEV_BUSWIDTH;
++ cfi_write(map, CMD(words - !bytes), cmd_adr );
++ /* Write data */
++ z = 0;
++ while(z < words * CFIDEV_BUSWIDTH) {
++ if (cfi_buswidth_is_1()) {
++ datum = *((__u8*)buf);
++ map_write8 (map, *((__u8*)buf)++, adr+z);
++ } else if (cfi_buswidth_is_2()) {
++ datum = *((__u16*)buf);
++ map_write16 (map, *((__u16*)buf)++, adr+z);
++ } else if (cfi_buswidth_is_4()) {
++ datum = *((__u32*)buf);
++ map_write32 (map, *((__u32*)buf)++, adr+z);
++#ifdef CFI_WORD_64
++ } else if (cfi_buswidth_is_8()) {
++ datum = *((__u64*)buf);
++ map_write64 (map, *((__u64*)buf)++, adr+z);
++#endif
++ } else {
++ printk(KERN_WARNING "MTD %s(): Unsupported buswidth %d\n",
++ __func__, CFIDEV_BUSWIDTH);
++ ret = -EINVAL;
++ goto op_failed;
++ }
++ z += CFIDEV_BUSWIDTH;
++ }
++ if (bytes) {
++ int i = 0, n = 0;
++ u_char tmp_buf[8], *tmp_p = tmp_buf;
++
++ while (bytes--)
++ tmp_buf[i++] = buf[n++];
++ while (i < CFIDEV_BUSWIDTH)
++ tmp_buf[i++] = 0xff;
++ if (cfi_buswidth_is_2()) {
++ datum = *((__u16*)tmp_p);
++ map_write16 (map, *((__u16*)tmp_p)++, adr+z);
++ } else if (cfi_buswidth_is_4()) {
++ datum = *((__u32*)tmp_p);
++ map_write32 (map, *((__u32*)tmp_p)++, adr+z);
++#ifdef CFI_WORD_64
++ } else if (cfi_buswidth_is_8()) {
++ datum = *((__u64*)tmp_p);
++ map_write64 (map, *((__u64*)tmp_p)++, adr+z);
++#endif
++ } else {
++ printk(KERN_WARNING "MTD %s(): Unsupported buswidth %d\n",
++ __func__, CFIDEV_BUSWIDTH);
++ ret = -EINVAL;
++ goto op_failed;
++ }
++ } else if (words > 0) {
++ z -= CFIDEV_BUSWIDTH;
++ }
++
++ adr += z;
++
++ /* Write Buffer Program Confirm: GO GO GO */
++ cfi_write(map, CMD(0x29), cmd_adr);
++ chip->state = FL_WRITING;
+
+- /* an initial short sleep */
+ cfi_spin_unlock(chip->mutex);
+- schedule_timeout(HZ/100);
++ cfi_udelay(chip->buffer_write_time);
+ cfi_spin_lock(chip->mutex);
+
+- if (chip->state != FL_ERASING) {
+- /* Someone's suspended the erase. Sleep */
++ timeo = jiffies + uWriteTimeout;
++
++ for (;;) {
++ if (chip->state != FL_WRITING) {
++ /* Someone's suspended the write. Sleep */
++ DECLARE_WAITQUEUE(wait, current);
++
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ add_wait_queue(&chip->wq, &wait);
+-
+ cfi_spin_unlock(chip->mutex);
+- printk("erase suspended. Sleeping\n");
+-
+ schedule();
+ remove_wait_queue(&chip->wq, &wait);
+-#if 0
+- if (signal_pending(current))
+- return -EINTR;
+-#endif
+- timeo = jiffies + (HZ*2); /* FIXME */
++ timeo = jiffies + (HZ / 2); /* FIXME */
+ cfi_spin_lock(chip->mutex);
+ continue;
+ }
+
+- /* Busy wait for 1/10 of a milisecond */
+- for(wait_reps = 0;
+- (wait_reps < 100) &&
+- ((status & dq6) != (oldstatus & dq6)) &&
+- ((status & dq5) != dq5);
+- wait_reps++) {
++ oldstatus = cfi_read(map, adr);
++ status = cfi_read(map, adr);
++ DEBUG( MTD_DEBUG_LEVEL3, "MTD %s(): Check 0x%.8x 0x%.8x\n",
++ __func__, oldstatus, status );
++
++ /* See comments in do_write_oneword() about checking status */
++ if ( (((status ^ oldstatus) & dq6) == 0)
++ || ( ta = time_after(jiffies, timeo)) ) {
++ break;
++ }
+
+ /* Latency issues. Drop the lock, wait a while and retry */
+ cfi_spin_unlock(chip->mutex);
+-
+ cfi_udelay(1);
+-
+ cfi_spin_lock(chip->mutex);
+- oldstatus = cfi_read(map, adr);
+- status = cfi_read(map, adr);
+ }
++
++ /* See comments in do_write_oneword() about "two more checks" */
++ prev_oldstatus = oldstatus;
++ prev_status = status;
+ oldstatus = cfi_read(map, adr);
+ status = cfi_read(map, adr);
++ DEBUG( MTD_DEBUG_LEVEL3, "MTD %s(): Check 0x%.8x 0x%.8x\n",
++ __func__, oldstatus, status );
++
++ if ( oldstatus == datum && status == datum ) {
++ /* success - do nothing */
++ goto op_done;
++ }
++
++ if ( ta ) {
++ /* Only check dq5 on the chips that are still toggling. */
++ cfi_word dq5mask = ( ( status ^ oldstatus ) & dq6 ) >> 1;
++ if ( status & dq5mask ) {
++ /* dq5 asserted - decode interleave chips */
++ printk( KERN_WARNING
++ "MTD %s(): FLASH internal timeout: 0x%.8x 0x%.8x 0x%8x\n",
++ __func__,
++ status & dq5mask, status, datum );
++ } else {
++ printk( KERN_WARNING
++ "MTD %s(): Software timed out during write.\n",
++ __func__ );
+ }
+- if ((status & dq6) != (oldstatus & dq6)) {
+- /* The erasing didn't stop?? */
+- if ((status & dq5) == dq5) {
+- /* dq5 is active so we can do a reset and stop the erase */
+- cfi_write(map, CMD(0xF0), chip->start);
++ goto op_failed;
+ }
++
++ HANDLE_WACKY_STATE();
++
++ op_failed:
++ /* reset on all failures. */
++ cfi_write( map, CMD(0xF0), chip->start );
++ /* FIXME - should have reset delay before continuing */
++ CHECK_RETRIES();
++ ret = -EIO;
++
++ op_done:
+ chip->state = FL_READY;
+- wake_up(&chip->wq);
++ put_chip(map, chip, adr);
+ cfi_spin_unlock(chip->mutex);
+- printk("waiting for erase to complete timed out.");
+- DISABLE_VPP(map);
+- return -EIO;
++
++ return ret;
++}
++
++
++static int cfi_amdstd_write_buffers(struct mtd_info *mtd, loff_t to, size_t len,
++ size_t *retlen, const u_char *buf)
++{
++ struct map_info *map = mtd->priv;
++ struct cfi_private *cfi = map->fldrv_priv;
++ int wbufsize = CFIDEV_INTERLEAVE << cfi->cfiq->MaxBufWriteSize;
++ int ret = 0;
++ int chipnum;
++ unsigned long ofs;
++
++ *retlen = 0;
++ if (!len)
++ return 0;
++
++ chipnum = to >> cfi->chipshift;
++ ofs = to - (chipnum << cfi->chipshift);
++
++ /* If it's not bus-aligned, do the first word write */
++ if (ofs & (CFIDEV_BUSWIDTH-1)) {
++ size_t local_len = (-ofs)&(CFIDEV_BUSWIDTH-1);
++ if (local_len > len)
++ local_len = len;
++ ret = cfi_amdstd_write_words(mtd, to, local_len,
++ retlen, buf);
++ if (ret)
++ return ret;
++ ofs += local_len;
++ buf += local_len;
++ len -= local_len;
++
++ if (ofs >> cfi->chipshift) {
++ chipnum ++;
++ ofs = 0;
++ if (chipnum == cfi->numchips)
++ return 0;
++ }
++ }
++
++ /* Write buffer is worth it only if more than one word to write... */
++ while (len) {
++ /* We must not cross write block boundaries */
++ int size = wbufsize - (ofs & (wbufsize-1));
++
++ if (size > len)
++ size = len;
++ ret = do_write_buffer(map, &cfi->chips[chipnum],
++ ofs, buf, size);
++ if (ret)
++ return ret;
++
++ ofs += size;
++ buf += size;
++ (*retlen) += size;
++ len -= size;
++
++ if (ofs >> cfi->chipshift) {
++ chipnum ++;
++ ofs = 0;
++ if (chipnum == cfi->numchips)
++ return 0;
++ }
+ }
+- DISABLE_VPP(map);
+- chip->state = FL_READY;
+- wake_up(&chip->wq);
+- cfi_spin_unlock(chip->mutex);
+
+ return 0;
+ }
+
+-static inline int do_erase_oneblock(struct map_info *map, struct flchip *chip, unsigned long adr)
++
++/*
++ * Handle devices with one erase region, that only implement
++ * the chip erase command.
++ */
++static inline int do_erase_chip(struct map_info *map, struct flchip *chip)
+ {
+- unsigned int oldstatus, status;
+- unsigned int dq6, dq5;
+- unsigned long timeo = jiffies + HZ;
+ struct cfi_private *cfi = map->fldrv_priv;
++ cfi_word oldstatus, status, prev_oldstatus, prev_status;
++ cfi_word dq6 = CMD(1<<6);
++ unsigned long timeo = jiffies + HZ;
++ unsigned long int adr;
+ DECLARE_WAITQUEUE(wait, current);
++ int ret = 0;
++ int ta = 0;
++ cfi_word datum = 0;
++ DECLARE_RETRY_CMD_CNT();
+
+- retry:
+- cfi_spin_lock(chip->mutex);
+-
+- if (chip->state != FL_READY){
+- set_current_state(TASK_UNINTERRUPTIBLE);
+- add_wait_queue(&chip->wq, &wait);
++ adr = cfi->addr_unlock1;
+
++ cfi_spin_lock(chip->mutex);
++ ret = get_chip(map, chip, adr, FL_WRITING);
++ if (ret) {
+ cfi_spin_unlock(chip->mutex);
+-
+- schedule();
+- remove_wait_queue(&chip->wq, &wait);
+-#if 0
+- if(signal_pending(current))
+- return -EINTR;
+-#endif
+- timeo = jiffies + HZ;
+-
+- goto retry;
++ return ret;
+ }
+
+- chip->state = FL_ERASING;
++ RETRY_CMD_LABEL;
++ DEBUG( MTD_DEBUG_LEVEL3, "MTD %s(): ERASE 0x%.8lx\n",
++ __func__, chip->start );
+
+- adr += chip->start;
+ ENABLE_VPP(map);
+ cfi_send_gen_cmd(0xAA, cfi->addr_unlock1, chip->start, map, cfi, CFI_DEVICETYPE_X8, NULL);
+ cfi_send_gen_cmd(0x55, cfi->addr_unlock2, chip->start, map, cfi, CFI_DEVICETYPE_X8, NULL);
+ cfi_send_gen_cmd(0x80, cfi->addr_unlock1, chip->start, map, cfi, CFI_DEVICETYPE_X8, NULL);
+ cfi_send_gen_cmd(0xAA, cfi->addr_unlock1, chip->start, map, cfi, CFI_DEVICETYPE_X8, NULL);
+ cfi_send_gen_cmd(0x55, cfi->addr_unlock2, chip->start, map, cfi, CFI_DEVICETYPE_X8, NULL);
+- cfi_write(map, CMD(0x30), adr);
+-
+- timeo = jiffies + (HZ*20);
+-
+- /* Wait for the end of programing/erasure by using the toggle method.
+- * As long as there is a programming procedure going on, bit 6 of the last
+- * written byte is toggling it's state with each consectuve read.
+- * The toggling stops as soon as the procedure is completed.
+- *
+- * If the process has gone on for too long on the chip bit 5 gets.
+- * After bit5 is set you can kill the operation by sending a reset
+- * command to the chip.
+- */
+- dq6 = CMD(1<<6);
+- dq5 = CMD(1<<5);
++ cfi_send_gen_cmd(0x10, cfi->addr_unlock1, chip->start, map, cfi, CFI_DEVICETYPE_X8, NULL);
+
+- oldstatus = cfi_read(map, adr);
+- status = cfi_read(map, adr);
+- while( ((status & dq6) != (oldstatus & dq6)) &&
+- ((status & dq5) != dq5) &&
+- !time_after(jiffies, timeo)) {
+- int wait_reps;
++ chip->state = FL_ERASING;
++ chip->erase_suspended = 0;
++ chip->in_progress_block_addr = adr;
+
+- /* an initial short sleep */
+ cfi_spin_unlock(chip->mutex);
+- schedule_timeout(HZ/100);
++ set_current_state(TASK_UNINTERRUPTIBLE);
++ schedule_timeout((chip->erase_time*HZ)/(2*1000));
+ cfi_spin_lock(chip->mutex);
+
++ timeo = jiffies + (HZ*20);
++
++ for (;;) {
+ if (chip->state != FL_ERASING) {
+ /* Someone's suspended the erase. Sleep */
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ add_wait_queue(&chip->wq, &wait);
+-
+ cfi_spin_unlock(chip->mutex);
+- printk(KERN_DEBUG "erase suspended. Sleeping\n");
+-
+ schedule();
+ remove_wait_queue(&chip->wq, &wait);
+-#if 0
+- if (signal_pending(current))
+- return -EINTR;
+-#endif
+- timeo = jiffies + (HZ*2); /* FIXME */
+ cfi_spin_lock(chip->mutex);
+ continue;
+ }
++ if (chip->erase_suspended) {
++ /* This erase was suspended and resumed.
++ Adjust the timeout */
++ timeo = jiffies + (HZ*20); /* FIXME */
++ chip->erase_suspended = 0;
++ }
+
+- /* Busy wait for 1/10 of a milisecond */
+- for(wait_reps = 0;
+- (wait_reps < 100) &&
+- ((status & dq6) != (oldstatus & dq6)) &&
+- ((status & dq5) != dq5);
+- wait_reps++) {
++ oldstatus = cfi_read(map, adr);
++ status = cfi_read(map, adr);
++ DEBUG( MTD_DEBUG_LEVEL3, "MTD %s(): Check 0x%.8x 0x%.8x\n",
++ __func__, oldstatus, status );
++ if ( (((status ^ oldstatus) & dq6) == 0)
++ || ( ta = time_after(jiffies, timeo)) )
++ break;
+
+ /* Latency issues. Drop the lock, wait a while and retry */
+ cfi_spin_unlock(chip->mutex);
+-
+- cfi_udelay(1);
+-
++ set_current_state(TASK_UNINTERRUPTIBLE);
++ schedule_timeout(1);
+ cfi_spin_lock(chip->mutex);
+- oldstatus = cfi_read(map, adr);
+- status = cfi_read(map, adr);
+ }
++
++ prev_oldstatus = oldstatus;
++ prev_status = status;
+ oldstatus = cfi_read(map, adr);
+ status = cfi_read(map, adr);
+- }
+- if( (status & dq6) != (oldstatus & dq6) )
+- {
+- /* The erasing didn't stop?? */
+- if( ( status & dq5 ) == dq5 )
+- {
+- /* When DQ5 raises, we must check once again if DQ6 is toggling.
+- If not, the erase has been completed OK. If not, reset chip. */
+- oldstatus = cfi_read( map, adr );
+- status = cfi_read( map, adr );
++ DEBUG( MTD_DEBUG_LEVEL3, "MTD %s(): Check 0x%.8x 0x%.8x\n",
++ __func__, oldstatus, status );
+
+- if( ( oldstatus & 0x00FF ) == ( status & 0x00FF ) )
+- {
+- printk( "Warning: DQ5 raised while erase operation was in progress, but erase completed OK\n" );
+- }
+- else
+- {
+- /* DQ5 is active so we can do a reset and stop the erase */
+- cfi_write(map, CMD(0xF0), chip->start);
+- printk( KERN_WARNING "Internal flash device timeout occured or write operation was performed while flash was erasing\n" );
++ if ( cfi_buswidth_is_1() ) {
++ datum = (__u8)~0;
++ } else if ( cfi_buswidth_is_2() ) {
++ datum = (__u16)~0;
++ } else if ( cfi_buswidth_is_4() ) {
++ datum = (__u32)~0;
++#ifdef CFI_WORD_64
++ } else if ( cfi_buswidth_is_8() ) {
++ datum = (__u64)~0;
++#endif
++ } else {
++ printk(KERN_WARNING "MTD %s(): Unsupported buswidth %d\n",
++ __func__, CFIDEV_BUSWIDTH);
++ goto op_failed;
++ }
++
++ if ( oldstatus == datum && status == datum ) {
++ /* success - do nothing */
++ goto op_done;
++ }
++
++ if ( ta ) {
++ /* Only check dq5 on the chips that are still toggling. */
++ cfi_word dq5mask = ( ( status ^ oldstatus ) & dq6 ) >> 1;
++ if ( status & dq5mask ) {
++ /* dq5 asserted - decode interleave chips */
++ printk( KERN_WARNING
++ "MTD %s(): FLASH internal timeout: 0x%.8x\n",
++ __func__,
++ status & dq5mask );
++ } else {
++ printk( KERN_WARNING
++ "MTD %s(): Software timed out during write.\n",
++ __func__ );
+ }
++ goto op_failed;
+ }
+- else
+- {
+- printk( "Waiting for erase to complete timed out in do_erase_oneblock.");
+
+- chip->state = FL_READY;
+- wake_up(&chip->wq);
+- cfi_spin_unlock(chip->mutex);
+- DISABLE_VPP(map);
+- return -EIO;
+- }
+- }
++ HANDLE_WACKY_STATE();
+
+- DISABLE_VPP(map);
++ op_failed:
++ /* reset on all failures. */
++ cfi_write( map, CMD(0xF0), chip->start );
++ /* FIXME - should have reset delay before continuing */
++ CHECK_RETRIES();
++ ret = -EIO;
++
++ op_done:
+ chip->state = FL_READY;
+- wake_up(&chip->wq);
++ put_chip(map, chip, adr);
+ cfi_spin_unlock(chip->mutex);
+- return 0;
++
++ return ret;
+ }
+
+-static int cfi_amdstd_erase_varsize(struct mtd_info *mtd, struct erase_info *instr)
++
++typedef int (*frob_t)(struct map_info *map, struct flchip *chip,
++ unsigned long adr, void *thunk);
++
++
++static int cfi_amdstd_varsize_frob(struct mtd_info *mtd, frob_t frob,
++ loff_t ofs, size_t len, void *thunk)
+ {
+ struct map_info *map = mtd->priv;
+ struct cfi_private *cfi = map->fldrv_priv;
+- unsigned long adr, len;
++ unsigned long adr;
+ int chipnum, ret = 0;
+ int i, first;
+ struct mtd_erase_region_info *regions = mtd->eraseregions;
+
+- if (instr->addr > mtd->size)
++ if (ofs > mtd->size)
+ return -EINVAL;
+
+- if ((instr->len + instr->addr) > mtd->size)
++ if ((len + ofs) > mtd->size)
+ return -EINVAL;
+
+ /* Check that both start and end of the requested erase are
+@@ -1008,7 +1656,7 @@
+ start of the requested erase, and then go back one.
+ */
+
+- while (i < mtd->numeraseregions && instr->addr >= regions[i].offset)
++ while (i < mtd->numeraseregions && ofs >= regions[i].offset)
+ i++;
+ i--;
+
+@@ -1018,7 +1666,7 @@
+ effect here.
+ */
+
+- if (instr->addr & (regions[i].erasesize-1))
++ if (ofs & (regions[i].erasesize-1))
+ return -EINVAL;
+
+ /* Remember the erase region we start on */
+@@ -1028,7 +1676,7 @@
+ * with the erase region at that address.
+ */
+
+- while (i<mtd->numeraseregions && (instr->addr + instr->len) >= regions[i].offset)
++ while (i<mtd->numeraseregions && (ofs + len) >= regions[i].offset)
+ i++;
+
+ /* As before, drop back one to point at the region in which
+@@ -1036,17 +1684,16 @@
+ */
+ i--;
+
+- if ((instr->addr + instr->len) & (regions[i].erasesize-1))
++ if ((ofs + len) & (regions[i].erasesize-1))
+ return -EINVAL;
+
+- chipnum = instr->addr >> cfi->chipshift;
+- adr = instr->addr - (chipnum << cfi->chipshift);
+- len = instr->len;
++ chipnum = ofs >> cfi->chipshift;
++ adr = ofs - (chipnum << cfi->chipshift);
+
+ i=first;
+
+- while(len) {
+- ret = do_erase_oneblock(map, &cfi->chips[chipnum], adr);
++ while (len) {
++ ret = (*frob)(map, &cfi->chips[chipnum], adr, thunk);
+
+ if (ret)
+ return ret;
+@@ -1066,50 +1713,171 @@
+ }
+ }
+
+- instr->state = MTD_ERASE_DONE;
+- if (instr->callback)
+- instr->callback(instr);
+-
+ return 0;
+ }
+
+-static int cfi_amdstd_erase_onesize(struct mtd_info *mtd, struct erase_info *instr)
++
++static inline int do_erase_oneblock(struct map_info *map, struct flchip *chip, unsigned long adr, void *thunk)
+ {
+- struct map_info *map = mtd->priv;
+ struct cfi_private *cfi = map->fldrv_priv;
+- unsigned long adr, len;
+- int chipnum, ret = 0;
++ cfi_word oldstatus, status, prev_oldstatus, prev_status;
++ cfi_word dq6 = CMD(1<<6);
++ unsigned long timeo = jiffies + HZ;
++ DECLARE_WAITQUEUE(wait, current);
++ int ret = 0;
++ int ta = 0;
++ cfi_word datum = 0;
++ DECLARE_RETRY_CMD_CNT();
+
+- if (instr->addr & (mtd->erasesize - 1))
+- return -EINVAL;
++ adr += chip->start;
+
+- if (instr->len & (mtd->erasesize -1))
+- return -EINVAL;
++ cfi_spin_lock(chip->mutex);
++ ret = get_chip(map, chip, adr, FL_ERASING);
++ if (ret) {
++ cfi_spin_unlock(chip->mutex);
++ return ret;
++ }
+
+- if ((instr->len + instr->addr) > mtd->size)
+- return -EINVAL;
++ RETRY_CMD_LABEL;
++ DEBUG( MTD_DEBUG_LEVEL3, "MTD %s(): ERASE 0x%.8lx\n",
++ __func__, adr );
+
+- chipnum = instr->addr >> cfi->chipshift;
+- adr = instr->addr - (chipnum << cfi->chipshift);
+- len = instr->len;
++ ENABLE_VPP(map);
++ cfi_send_gen_cmd(0xAA, cfi->addr_unlock1, chip->start, map, cfi, CFI_DEVICETYPE_X8, NULL);
++ cfi_send_gen_cmd(0x55, cfi->addr_unlock2, chip->start, map, cfi, CFI_DEVICETYPE_X8, NULL);
++ cfi_send_gen_cmd(0x80, cfi->addr_unlock1, chip->start, map, cfi, CFI_DEVICETYPE_X8, NULL);
++ cfi_send_gen_cmd(0xAA, cfi->addr_unlock1, chip->start, map, cfi, CFI_DEVICETYPE_X8, NULL);
++ cfi_send_gen_cmd(0x55, cfi->addr_unlock2, chip->start, map, cfi, CFI_DEVICETYPE_X8, NULL);
++ cfi_write(map, CMD(0x30), adr);
+
+- while(len) {
+- ret = do_erase_oneblock(map, &cfi->chips[chipnum], adr);
++ chip->state = FL_ERASING;
++ chip->erase_suspended = 0;
++ chip->in_progress_block_addr = adr;
+
+- if (ret)
+- return ret;
++ cfi_spin_unlock(chip->mutex);
++ set_current_state(TASK_UNINTERRUPTIBLE);
++ schedule_timeout((chip->erase_time*HZ)/(2*1000));
++ cfi_spin_lock(chip->mutex);
+
+- adr += mtd->erasesize;
+- len -= mtd->erasesize;
++ timeo = jiffies + (HZ*20);
+
+- if (adr >> cfi->chipshift) {
+- adr = 0;
+- chipnum++;
++ /* Wait for the end of programing/erasure by using the toggle method.
++ * As long as there is a programming procedure going on, bit 6 is
++ * toggling its state with each consecutive read. The toggling stops
++ * as soon as the procedure is completed.
++ *
++ * If the process has gone on for too long on the chip, bit 5 gets
++ * set. After bit5 is set you can kill the operation by sending a
++ * reset command to the chip.
++ */
++ /* See comments in do_write_oneword(). */
+
+- if (chipnum >= cfi->numchips)
++ for (;;) {
++ if (chip->state != FL_ERASING) {
++ /* Someone's suspended the erase. Sleep */
++ set_current_state(TASK_UNINTERRUPTIBLE);
++ add_wait_queue(&chip->wq, &wait);
++ cfi_spin_unlock(chip->mutex);
++ schedule();
++ remove_wait_queue(&chip->wq, &wait);
++ cfi_spin_lock(chip->mutex);
++ continue;
++ }
++ if (chip->erase_suspended) {
++ /* This erase was suspended and resumed.
++ Adjust the timeout */
++ timeo = jiffies + (HZ*20); /* FIXME */
++ chip->erase_suspended = 0;
++ }
++
++ oldstatus = cfi_read(map, adr);
++ status = cfi_read(map, adr);
++ DEBUG( MTD_DEBUG_LEVEL3, "MTD %s(): Check 0x%.8x 0x%.8x\n",
++ __func__, oldstatus, status );
++ if ( (((status ^ oldstatus) & dq6) == 0)
++ || ( ta = time_after(jiffies, timeo)) )
+ break;
++
++ /* Latency issues. Drop the lock, wait a while and retry */
++ cfi_spin_unlock(chip->mutex);
++ set_current_state(TASK_UNINTERRUPTIBLE);
++ schedule_timeout(1);
++ cfi_spin_lock(chip->mutex);
+ }
++
++ prev_oldstatus = oldstatus;
++ prev_status = status;
++ oldstatus = cfi_read(map, adr);
++ status = cfi_read(map, adr);
++ DEBUG( MTD_DEBUG_LEVEL3, "MTD %s(): Check 0x%.8x 0x%.8x\n",
++ __func__, oldstatus, status );
++
++ if ( cfi_buswidth_is_1() ) {
++ datum = (__u8)~0;
++ } else if ( cfi_buswidth_is_2() ) {
++ datum = (__u16)~0;
++ } else if ( cfi_buswidth_is_4() ) {
++ datum = (__u32)~0;
++#ifdef CFI_WORD_64
++ } else if ( cfi_buswidth_is_8() ) {
++ datum = (__u64)~0;
++#endif
++ } else {
++ printk(KERN_WARNING "MTD %s(): Unsupported buswidth %d\n",
++ __func__, CFIDEV_BUSWIDTH);
++ goto op_failed;
++ }
++
++ if ( oldstatus == datum && status == datum ) {
++ /* success - do nothing */
++ goto op_done;
++ }
++
++ if ( ta ) {
++ /* Only check dq5 on the chips that are still toggling. */
++ cfi_word dq5mask = ( ( status ^ oldstatus ) & dq6 ) >> 1;
++ if ( status & dq5mask ) {
++ /* dq5 asserted - decode interleave chips */
++ printk( KERN_WARNING
++ "MTD %s(): FLASH internal timeout: 0x%.8x\n",
++ __func__,
++ status & dq5mask );
++ } else {
++ printk( KERN_WARNING
++ "MTD %s(): Software timed out during write.\n",
++ __func__ );
+ }
++ goto op_failed;
++ }
++
++ HANDLE_WACKY_STATE();
++
++ op_failed:
++ /* reset on all failures. */
++ cfi_write( map, CMD(0xF0), chip->start );
++ /* FIXME - should have reset delay before continuing */
++ CHECK_RETRIES();
++ ret = -EIO;
++
++ op_done:
++ chip->state = FL_READY;
++ put_chip(map, chip, adr);
++ cfi_spin_unlock(chip->mutex);
++ return ret;
++}
++
++
++int cfi_amdstd_erase_varsize(struct mtd_info *mtd, struct erase_info *instr)
++{
++ unsigned long ofs, len;
++ int ret;
++
++ ofs = instr->addr;
++ len = instr->len;
++
++ ret = cfi_amdstd_varsize_frob(mtd, do_erase_oneblock, ofs, len, 0);
++ if (ret)
++ return ret;
+
+ instr->state = MTD_ERASE_DONE;
+ if (instr->callback)
+@@ -1118,6 +1886,7 @@
+ return 0;
+ }
+
++
+ static int cfi_amdstd_erase_chip(struct mtd_info *mtd, struct erase_info *instr)
+ {
+ struct map_info *map = mtd->priv;
+@@ -1141,6 +1910,7 @@
+ return 0;
+ }
+
++
+ static void cfi_amdstd_sync (struct mtd_info *mtd)
+ {
+ struct map_info *map = mtd->priv;
+@@ -1254,6 +2024,7 @@
+ return ret;
+ }
+
++
+ static void cfi_amdstd_resume(struct mtd_info *mtd)
+ {
+ struct map_info *map = mtd->priv;
+@@ -1279,6 +2050,137 @@
+ }
+ }
+
++
++#ifdef DEBUG_LOCK_BITS
++
++static int do_printlockstatus_oneblock(struct map_info *map,
++ struct flchip *chip,
++ unsigned long adr,
++ void *thunk)
++{
++ struct cfi_private *cfi = map->fldrv_priv;
++ int ofs_factor = cfi->interleave * cfi->device_type;
++
++ cfi_send_gen_cmd(0x90, 0x55, 0, map, cfi, cfi->device_type, NULL);
++ printk(KERN_DEBUG "block status register for 0x%08lx is %x\n",
++ adr, cfi_read_query(map, adr+(2*ofs_factor)));
++ cfi_send_gen_cmd(0xff, 0x55, 0, map, cfi, cfi->device_type, NULL);
++
++ return 0;
++}
++
++
++#define debug_dump_locks(mtd, frob, ofs, len, thunk) \
++ cfi_amdstd_varsize_frob((mtd), (frob), (ofs), (len), (thunk))
++
++#else
++
++#define debug_dump_locks(...)
++
++#endif /* DEBUG_LOCK_BITS */
++
++
++struct xxlock_thunk {
++ cfi_word val;
++ flstate_t state;
++};
++
++
++#define DO_XXLOCK_ONEBLOCK_LOCK ((struct xxlock_thunk){0x01, FL_LOCKING})
++#define DO_XXLOCK_ONEBLOCK_UNLOCK ((struct xxlock_thunk){0x00, FL_UNLOCKING})
++
++
++/*
++ * FIXME - this is *very* specific to a particular chip. It likely won't
++ * work for all chips that require unlock. It also hasn't been tested
++ * with interleaved chips.
++ */
++static int do_xxlock_oneblock(struct map_info *map, struct flchip *chip, unsigned long adr, void *thunk)
++{
++ struct cfi_private *cfi = map->fldrv_priv;
++ struct xxlock_thunk *xxlt = (struct xxlock_thunk *)thunk;
++ int ret;
++
++ /*
++ * This is easy because these are writes to registers and not writes
++ * to flash memory - that means that we don't have to check status
++ * and timeout.
++ */
++
++ adr += chip->start;
++ /*
++ * lock block registers:
++ * - on 64k boundariesand
++ * - bit 1 set high
++ * - block lock registers are 4MiB lower - overflow subtract (danger)
++ */
++ adr = ((adr & ~0xffff) | 0x2) + ~0x3fffff;
++
++ cfi_spin_lock(chip->mutex);
++ ret = get_chip(map, chip, adr, FL_LOCKING);
++ if (ret) {
++ cfi_spin_unlock(chip->mutex);
++ return ret;
++ }
++
++ chip->state = xxlt->state;
++ cfi_write(map, CMD(xxlt->val), adr);
++
++ /* Done and happy. */
++ chip->state = FL_READY;
++ put_chip(map, chip, adr);
++ cfi_spin_unlock(chip->mutex);
++ return 0;
++}
++
++
++static int cfi_amdstd_lock_varsize(struct mtd_info *mtd,
++ loff_t ofs,
++ size_t len)
++{
++ int ret;
++
++ DEBUG(MTD_DEBUG_LEVEL3,
++ "%s: lock status before, ofs=0x%08llx, len=0x%08X\n",
++ __func__, ofs, len);
++ debug_dump_locks(mtd, do_printlockstatus_oneblock, ofs, len, 0);
++
++ ret = cfi_amdstd_varsize_frob(mtd, do_xxlock_oneblock, ofs, len,
++ (void *)&DO_XXLOCK_ONEBLOCK_LOCK);
++
++ DEBUG(MTD_DEBUG_LEVEL3,
++ "%s: lock status after, ret=%d\n",
++ __func__, ret);
++
++ debug_dump_locks(mtd, do_printlockstatus_oneblock, ofs, len, 0);
++
++ return ret;
++}
++
++
++static int cfi_amdstd_unlock_varsize(struct mtd_info *mtd,
++ loff_t ofs,
++ size_t len)
++{
++ int ret;
++
++ DEBUG(MTD_DEBUG_LEVEL3,
++ "%s: lock status before, ofs=0x%08llx, len=0x%08X\n",
++ __func__, ofs, len);
++ debug_dump_locks(mtd, do_printlockstatus_oneblock, ofs, len, 0);
++
++ ret = cfi_amdstd_varsize_frob(mtd, do_xxlock_oneblock, ofs, len,
++ (void *)&DO_XXLOCK_ONEBLOCK_UNLOCK);
++
++ DEBUG(MTD_DEBUG_LEVEL3,
++ "%s: lock status after, ret=%d\n",
++ __func__, ret);
++ debug_dump_locks(mtd, do_printlockstatus_oneblock, ofs, len, 0);
++
++ return ret;
++}
++
++
+ static void cfi_amdstd_destroy(struct mtd_info *mtd)
+ {
+ struct map_info *map = mtd->priv;
+@@ -1291,17 +2193,20 @@
+
+ static char im_name[]="cfi_cmdset_0002";
+
++
+ int __init cfi_amdstd_init(void)
+ {
+ inter_module_register(im_name, THIS_MODULE, &cfi_cmdset_0002);
+ return 0;
+ }
+
++
+ static void __exit cfi_amdstd_exit(void)
+ {
+ inter_module_unregister(im_name);
+ }
+
++
+ module_init(cfi_amdstd_init);
+ module_exit(cfi_amdstd_exit);
+
+@@ -1309,3 +2214,7 @@
+ MODULE_AUTHOR("Crossnet Co. <info@crossnet.co.jp> et al.");
+ MODULE_DESCRIPTION("MTD chip driver for AMD/Fujitsu flash chips");
+
++#ifdef CONFIG_MTD_CFI_AMDSTD_RETRY
++MODULE_PARM(retry_cmd_max, "i");
++MODULE_PARM_DESC(retry_cmd_max, "Number of times to retry an erase or program command if it fails - should only be needed by buggy hardware: default 0");
++#endif
+diff -Nurb linux-mips-2.4.27/drivers/mtd/chips/cfi_cmdset_0020.c linux/drivers/mtd/chips/cfi_cmdset_0020.c
+--- linux-mips-2.4.27/drivers/mtd/chips/cfi_cmdset_0020.c 2003-02-26 01:53:49.000000000 +0100
++++ linux/drivers/mtd/chips/cfi_cmdset_0020.c 2004-11-19 10:25:11.747222896 +0100
+@@ -21,16 +21,19 @@
+ #include <linux/types.h>
+ #include <linux/kernel.h>
+ #include <linux/sched.h>
++#include <linux/init.h>
+ #include <asm/io.h>
+ #include <asm/byteorder.h>
+
+ #include <linux/errno.h>
++#include <linux/init.h>
+ #include <linux/slab.h>
+ #include <linux/delay.h>
+ #include <linux/interrupt.h>
++#include <linux/mtd/compatmac.h>
+ #include <linux/mtd/map.h>
+ #include <linux/mtd/cfi.h>
+-#include <linux/mtd/compatmac.h>
++#include <linux/mtd/mtd.h>
+
+
+ static int cfi_staa_read(struct mtd_info *, loff_t, size_t, size_t *, u_char *);
+@@ -51,10 +54,10 @@
+ static struct mtd_info *cfi_staa_setup (struct map_info *);
+
+ static struct mtd_chip_driver cfi_staa_chipdrv = {
+- probe: NULL, /* Not usable directly */
+- destroy: cfi_staa_destroy,
+- name: "cfi_cmdset_0020",
+- module: THIS_MODULE
++ .probe = NULL, /* Not usable directly */
++ .destroy = cfi_staa_destroy,
++ .name = "cfi_cmdset_0020",
++ .module = THIS_MODULE
+ };
+
+ /* #define DEBUG_LOCK_BITS */
+@@ -113,7 +116,6 @@
+ {
+ struct cfi_private *cfi = map->fldrv_priv;
+ int i;
+- __u32 base = cfi->chips[0].start;
+
+ if (cfi->cfi_mode) {
+ /*
+@@ -123,35 +125,10 @@
+ */
+ __u16 adr = primary?cfi->cfiq->P_ADR:cfi->cfiq->A_ADR;
+ struct cfi_pri_intelext *extp;
+- int ofs_factor = cfi->interleave * cfi->device_type;
+-
+- printk(" ST Microelectronics Extended Query Table at 0x%4.4X\n", adr);
+- if (!adr)
+- return NULL;
+-
+- /* Switch it into Query Mode */
+- cfi_send_gen_cmd(0x98, 0x55, base, map, cfi, cfi->device_type, NULL);
+-
+- extp = kmalloc(sizeof(*extp), GFP_KERNEL);
+- if (!extp) {
+- printk(KERN_ERR "Failed to allocate memory\n");
+- return NULL;
+- }
+-
+- /* Read in the Extended Query Table */
+- for (i=0; i<sizeof(*extp); i++) {
+- ((unsigned char *)extp)[i] =
+- cfi_read_query(map, (base+((adr+i)*ofs_factor)));
+- }
+
+- if (extp->MajorVersion != '1' ||
+- (extp->MinorVersion < '0' || extp->MinorVersion > '2')) {
+- printk(KERN_WARNING " Unknown staa Extended Query "
+- "version %c.%c.\n", extp->MajorVersion,
+- extp->MinorVersion);
+- kfree(extp);
++ extp = (struct cfi_pri_intelext*)cfi_read_pri(map, adr, sizeof(*extp), "ST Microelectronics");
++ if (!extp)
+ return NULL;
+- }
+
+ /* Do some byteswapping if necessary */
+ extp->FeatureSupport = cfi32_to_cpu(extp->FeatureSupport);
+@@ -172,11 +149,6 @@
+ cfi->chips[i].erase_time = 1024;
+ }
+
+- map->fldrv = &cfi_staa_chipdrv;
+- MOD_INC_USE_COUNT;
+-
+- /* Make sure it's in read mode */
+- cfi_send_gen_cmd(0xff, 0x55, base, map, cfi, cfi->device_type, NULL);
+ return cfi_staa_setup(map);
+ }
+
+@@ -208,6 +180,7 @@
+ if (!mtd->eraseregions) {
+ printk(KERN_ERR "Failed to allocate memory for MTD erase region info\n");
+ kfree(cfi->cmdset_priv);
++ kfree(mtd);
+ return NULL;
+ }
+
+@@ -232,6 +205,7 @@
+ printk(KERN_WARNING "Sum of regions (%lx) != total size of set of interleaved chips (%lx)\n", offset, devsize);
+ kfree(mtd->eraseregions);
+ kfree(cfi->cmdset_priv);
++ kfree(mtd);
+ return NULL;
+ }
+
+@@ -256,7 +230,7 @@
+ mtd->flags |= MTD_ECC; /* FIXME: Not all STMicro flashes have this */
+ mtd->eccsize = 8; /* FIXME: Should be 0 for STMicro flashes w/out ECC */
+ map->fldrv = &cfi_staa_chipdrv;
+- MOD_INC_USE_COUNT;
++ __module_get(THIS_MODULE);
+ mtd->name = map->name;
+ return mtd;
+ }
+@@ -288,7 +262,7 @@
+ */
+ switch (chip->state) {
+ case FL_ERASING:
+- if (!((struct cfi_pri_intelext *)cfi->cmdset_priv)->FeatureSupport & 2)
++ if (!(((struct cfi_pri_intelext *)cfi->cmdset_priv)->FeatureSupport & 2))
+ goto sleep; /* We don't support erase suspend */
+
+ cfi_write (map, CMD(0xb0), cmd_addr);
+@@ -374,7 +348,7 @@
+ goto retry;
+ }
+
+- map->copy_from(map, buf, adr, len);
++ map_copy_from(map, buf, adr, len);
+
+ if (suspended) {
+ chip->state = chip->oldstate;
+@@ -540,11 +514,11 @@
+ /* Write data */
+ for (z = 0; z < len; z += CFIDEV_BUSWIDTH) {
+ if (cfi_buswidth_is_1()) {
+- map->write8 (map, *((__u8*)buf)++, adr+z);
++ map_write8 (map, *((__u8*)buf)++, adr+z);
+ } else if (cfi_buswidth_is_2()) {
+- map->write16 (map, *((__u16*)buf)++, adr+z);
++ map_write16 (map, *((__u16*)buf)++, adr+z);
+ } else if (cfi_buswidth_is_4()) {
+- map->write32 (map, *((__u32*)buf)++, adr+z);
++ map_write32 (map, *((__u32*)buf)++, adr+z);
+ } else {
+ DISABLE_VPP(map);
+ return -EINVAL;
+@@ -1436,13 +1410,13 @@
+
+ static char im_name[]="cfi_cmdset_0020";
+
+-mod_init_t cfi_staa_init(void)
++int __init cfi_staa_init(void)
+ {
+ inter_module_register(im_name, THIS_MODULE, &cfi_cmdset_0020);
+ return 0;
+ }
+
+-mod_exit_t cfi_staa_exit(void)
++static void __exit cfi_staa_exit(void)
+ {
+ inter_module_unregister(im_name);
+ }
+diff -Nurb linux-mips-2.4.27/drivers/mtd/chips/cfi_probe.c linux/drivers/mtd/chips/cfi_probe.c
+--- linux-mips-2.4.27/drivers/mtd/chips/cfi_probe.c 2003-02-26 01:53:49.000000000 +0100
++++ linux/drivers/mtd/chips/cfi_probe.c 2004-11-19 10:25:11.766220008 +0100
+@@ -1,13 +1,14 @@
+ /*
+ Common Flash Interface probe code.
+ (C) 2000 Red Hat. GPL'd.
+- $Id: cfi_probe.c,v 1.69 2002/05/11 22:13:03 dwmw2 Exp $
++ $Id: cfi_probe.c,v 1.73 2003/11/08 00:51:21 dsaxena Exp $
+ */
+
+ #include <linux/config.h>
+ #include <linux/module.h>
+ #include <linux/types.h>
+ #include <linux/kernel.h>
++#include <linux/init.h>
+ #include <asm/io.h>
+ #include <asm/byteorder.h>
+ #include <linux/errno.h>
+@@ -25,7 +26,7 @@
+ #endif
+
+ static int cfi_probe_chip(struct map_info *map, __u32 base,
+- struct flchip *chips, struct cfi_private *cfi);
++ unsigned long *chip_map, struct cfi_private *cfi);
+ static int cfi_chip_setup(struct map_info *map, struct cfi_private *cfi);
+
+ struct mtd_info *cfi_probe(struct map_info *map);
+@@ -48,7 +49,7 @@
+ }
+
+ static int cfi_probe_chip(struct map_info *map, __u32 base,
+- struct flchip *chips, struct cfi_private *cfi)
++ unsigned long *chip_map, struct cfi_private *cfi)
+ {
+ int i;
+
+@@ -77,18 +78,24 @@
+ }
+
+ /* Check each previous chip to see if it's an alias */
+- for (i=0; i<cfi->numchips; i++) {
++ for (i=0; i < (base >> cfi->chipshift); i++) {
++ unsigned long start;
++ if(!test_bit(i, chip_map)) {
++ /* Skip location; no valid chip at this address */
++ continue;
++ }
++ start = i << cfi->chipshift;
+ /* This chip should be in read mode if it's one
+ we've already touched. */
+- if (qry_present(map,chips[i].start,cfi)) {
++ if (qry_present(map, start, cfi)) {
+ /* Eep. This chip also had the QRY marker.
+ * Is it an alias for the new one? */
+- cfi_send_gen_cmd(0xF0, 0, chips[i].start, map, cfi, cfi->device_type, NULL);
++ cfi_send_gen_cmd(0xF0, 0, start, map, cfi, cfi->device_type, NULL);
+
+ /* If the QRY marker goes away, it's an alias */
+- if (!qry_present(map, chips[i].start, cfi)) {
++ if (!qry_present(map, start, cfi)) {
+ printk(KERN_DEBUG "%s: Found an alias at 0x%x for the chip at 0x%lx\n",
+- map->name, base, chips[i].start);
++ map->name, base, start);
+ return 0;
+ }
+ /* Yes, it's actually got QRY for data. Most
+@@ -99,7 +106,7 @@
+
+ if (qry_present(map, base, cfi)) {
+ printk(KERN_DEBUG "%s: Found an alias at 0x%x for the chip at 0x%lx\n",
+- map->name, base, chips[i].start);
++ map->name, base, start);
+ return 0;
+ }
+ }
+@@ -107,13 +114,7 @@
+
+ /* OK, if we got to here, then none of the previous chips appear to
+ be aliases for the current one. */
+- if (cfi->numchips == MAX_CFI_CHIPS) {
+- printk(KERN_WARNING"%s: Too many flash chips detected. Increase MAX_CFI_CHIPS from %d.\n", map->name, MAX_CFI_CHIPS);
+- /* Doesn't matter about resetting it to Read Mode - we're not going to talk to it anyway */
+- return -1;
+- }
+- chips[cfi->numchips].start = base;
+- chips[cfi->numchips].state = FL_READY;
++ set_bit((base >> cfi->chipshift), chip_map); /* Update chip map */
+ cfi->numchips++;
+
+ /* Put it back into Read Mode */
+@@ -179,9 +180,28 @@
+ (cfi->cfiq->EraseRegionInfo[i] & 0xffff) + 1);
+ #endif
+ }
++
++ /* Note we put the device back into Read Mode BEFORE going into Auto
++ * Select Mode, as some devices support nesting of modes, others
++ * don't. This way should always work.
++ * On cmdset 0001 the writes of 0xaa and 0x55 are not needed, and
++ * so should be treated as nops or illegal (and so put the device
++ * back into Read Mode, which is a nop in this case).
++ */
++ cfi_send_gen_cmd(0xf0, 0, base, map, cfi, cfi->device_type, NULL);
++ cfi_send_gen_cmd(0xaa, 0x555, base, map, cfi, cfi->device_type, NULL);
++ cfi_send_gen_cmd(0x55, 0x2aa, base, map, cfi, cfi->device_type, NULL);
++ cfi_send_gen_cmd(0x90, 0x555, base, map, cfi, cfi->device_type, NULL);
++ cfi->mfr = cfi_read_query(map, base);
++ cfi->id = cfi_read_query(map, base + ofs_factor);
++
+ /* Put it back into Read Mode */
+ cfi_send_gen_cmd(0xF0, 0, base, map, cfi, cfi->device_type, NULL);
+
++ printk(KERN_INFO "%s: Found %d x%d devices at 0x%x in %d-bit mode\n",
++ map->name, cfi->interleave, cfi->device_type*8, base,
++ map->buswidth*8);
++
+ return 1;
+ }
+
+@@ -240,11 +260,11 @@
+ printk("No Alternate Algorithm Table\n");
+
+
+- printk("Vcc Minimum: %x.%x V\n", cfip->VccMin >> 4, cfip->VccMin & 0xf);
+- printk("Vcc Maximum: %x.%x V\n", cfip->VccMax >> 4, cfip->VccMax & 0xf);
++ printk("Vcc Minimum: %2d.%d V\n", cfip->VccMin >> 4, cfip->VccMin & 0xf);
++ printk("Vcc Maximum: %2d.%d V\n", cfip->VccMax >> 4, cfip->VccMax & 0xf);
+ if (cfip->VppMin) {
+- printk("Vpp Minimum: %x.%x V\n", cfip->VppMin >> 4, cfip->VppMin & 0xf);
+- printk("Vpp Maximum: %x.%x V\n", cfip->VppMax >> 4, cfip->VppMax & 0xf);
++ printk("Vpp Minimum: %2d.%d V\n", cfip->VppMin >> 4, cfip->VppMin & 0xf);
++ printk("Vpp Maximum: %2d.%d V\n", cfip->VppMax >> 4, cfip->VppMax & 0xf);
+ }
+ else
+ printk("No Vpp line\n");
+@@ -303,8 +323,8 @@
+ #endif /* DEBUG_CFI */
+
+ static struct chip_probe cfi_chip_probe = {
+- name: "CFI",
+- probe_chip: cfi_probe_chip
++ .name = "CFI",
++ .probe_chip = cfi_probe_chip
+ };
+
+ struct mtd_info *cfi_probe(struct map_info *map)
+@@ -317,9 +337,9 @@
+ }
+
+ static struct mtd_chip_driver cfi_chipdrv = {
+- probe: cfi_probe,
+- name: "cfi_probe",
+- module: THIS_MODULE
++ .probe = cfi_probe,
++ .name = "cfi_probe",
++ .module = THIS_MODULE
+ };
+
+ int __init cfi_probe_init(void)
+diff -Nurb linux-mips-2.4.27/drivers/mtd/chips/cfi_util.c linux/drivers/mtd/chips/cfi_util.c
+--- linux-mips-2.4.27/drivers/mtd/chips/cfi_util.c 1970-01-01 01:00:00.000000000 +0100
++++ linux/drivers/mtd/chips/cfi_util.c 2004-11-19 10:25:11.767219856 +0100
+@@ -0,0 +1,91 @@
++/*
++ * Common Flash Interface support:
++ * Generic utility functions not dependant on command set
++ *
++ * Copyright (C) 2002 Red Hat
++ * Copyright (C) 2003 STMicroelectronics Limited
++ *
++ * This code is covered by the GPL.
++ *
++ * $Id: cfi_util.c,v 1.3 2003/11/14 19:50:03 thayne Exp $
++ *
++ */
++
++#include <linux/module.h>
++#include <linux/types.h>
++#include <linux/kernel.h>
++#include <linux/sched.h>
++#include <asm/io.h>
++#include <asm/byteorder.h>
++
++#include <linux/errno.h>
++#include <linux/slab.h>
++#include <linux/delay.h>
++#include <linux/interrupt.h>
++#include <linux/mtd/map.h>
++#include <linux/mtd/cfi.h>
++#include <linux/mtd/compatmac.h>
++
++struct cfi_extquery *
++cfi_read_pri(struct map_info *map, __u16 adr, __u16 size, const char* name)
++{
++ struct cfi_private *cfi = map->fldrv_priv;
++ __u32 base = 0; // cfi->chips[0].start;
++ int ofs_factor = cfi->interleave * cfi->device_type;
++ int i;
++ struct cfi_extquery *extp = NULL;
++
++ printk(" %s Extended Query Table at 0x%4.4X\n", name, adr);
++ if (!adr)
++ goto out;
++
++ /* Switch it into Query Mode */
++ cfi_send_gen_cmd(0x98, 0x55, base, map, cfi, cfi->device_type, NULL);
++
++ extp = kmalloc(size, GFP_KERNEL);
++ if (!extp) {
++ printk(KERN_ERR "Failed to allocate memory\n");
++ goto out;
++ }
++
++ /* Read in the Extended Query Table */
++ for (i=0; i<size; i++) {
++ ((unsigned char *)extp)[i] =
++ cfi_read_query(map, base+((adr+i)*ofs_factor));
++ }
++
++ if (extp->MajorVersion != '1' ||
++ (extp->MinorVersion < '0' || extp->MinorVersion > '3')) {
++ printk(KERN_WARNING " Unknown %s Extended Query "
++ "version %c.%c.\n", name, extp->MajorVersion,
++ extp->MinorVersion);
++ kfree(extp);
++ extp = NULL;
++ goto out;
++ }
++
++out:
++ /* Make sure it's in read mode */
++ cfi_send_gen_cmd(0xf0, 0, base, map, cfi, cfi->device_type, NULL);
++
++ return extp;
++}
++
++EXPORT_SYMBOL(cfi_read_pri);
++
++void cfi_fixup(struct map_info *map, struct cfi_fixup* fixups)
++{
++ struct cfi_private *cfi = map->fldrv_priv;
++ struct cfi_fixup *f;
++
++ for (f=fixups; f->fixup; f++) {
++ if (((f->mfr == CFI_MFR_ANY) || (f->mfr == cfi->mfr)) &&
++ ((f->id == CFI_ID_ANY) || (f->id == cfi->id))) {
++ f->fixup(map, f->param);
++ }
++ }
++}
++
++EXPORT_SYMBOL(cfi_fixup);
++
++MODULE_LICENSE("GPL");
+diff -Nurb linux-mips-2.4.27/drivers/mtd/chips/chipreg.c linux/drivers/mtd/chips/chipreg.c
+--- linux-mips-2.4.27/drivers/mtd/chips/chipreg.c 2003-02-26 01:53:49.000000000 +0100
++++ linux/drivers/mtd/chips/chipreg.c 2004-11-19 10:25:11.769219552 +0100
+@@ -1,5 +1,5 @@
+ /*
+- * $Id: chipreg.c,v 1.13 2002/02/21 08:26:58 dwmw2 Exp $
++ * $Id: chipreg.c,v 1.16 2003/05/29 09:36:15 dwmw2 Exp $
+ *
+ * Registration for chip drivers
+ *
+@@ -7,10 +7,13 @@
+
+ #include <linux/kernel.h>
+ #include <linux/config.h>
++#include <linux/module.h>
+ #include <linux/kmod.h>
+ #include <linux/spinlock.h>
+-#include <linux/mtd/compatmac.h>
++#include <linux/slab.h>
+ #include <linux/mtd/map.h>
++#include <linux/mtd/mtd.h>
++#include <linux/mtd/compatmac.h>
+
+ spinlock_t chip_drvs_lock = SPIN_LOCK_UNLOCKED;
+ static LIST_HEAD(chip_drvs_list);
+@@ -44,10 +47,8 @@
+ break;
+ }
+ }
+- if (ret && !try_inc_mod_count(ret->module)) {
+- /* Eep. Failed. */
++ if (ret && !try_module_get(ret->module))
+ ret = NULL;
+- }
+
+ spin_unlock(&chip_drvs_lock);
+
+@@ -64,32 +65,46 @@
+
+ drv = get_mtd_chip_driver(name);
+
+- if (!drv && !request_module(name))
++ if (!drv && !request_module("%s", name))
+ drv = get_mtd_chip_driver(name);
+
+ if (!drv)
+ return NULL;
+
+ ret = drv->probe(map);
+-#ifdef CONFIG_MODULES
++
+ /* We decrease the use count here. It may have been a
+ probe-only module, which is no longer required from this
+ point, having given us a handle on (and increased the use
+ count of) the actual driver code.
+ */
+- if(drv->module)
+- __MOD_DEC_USE_COUNT(drv->module);
+-#endif
++ module_put(drv->module);
+
+ if (ret)
+ return ret;
+
+ return NULL;
+ }
++/*
++ * Destroy an MTD device which was created for a map device.
++ * Make sure the MTD device is already unregistered before calling this
++ */
++void map_destroy(struct mtd_info *mtd)
++{
++ struct map_info *map = mtd->priv;
++
++ if (map->fldrv->destroy)
++ map->fldrv->destroy(mtd);
++
++ module_put(map->fldrv->module);
++
++ kfree(mtd);
++}
+
+ EXPORT_SYMBOL(register_mtd_chip_driver);
+ EXPORT_SYMBOL(unregister_mtd_chip_driver);
+ EXPORT_SYMBOL(do_map_probe);
++EXPORT_SYMBOL(map_destroy);
+
+ MODULE_LICENSE("GPL");
+ MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org>");
+diff -Nurb linux-mips-2.4.27/drivers/mtd/chips/gen_probe.c linux/drivers/mtd/chips/gen_probe.c
+--- linux-mips-2.4.27/drivers/mtd/chips/gen_probe.c 2003-08-13 19:19:18.000000000 +0200
++++ linux/drivers/mtd/chips/gen_probe.c 2004-11-19 10:25:11.770219400 +0100
+@@ -1,14 +1,17 @@
+ /*
+ * Routines common to all CFI-type probes.
+- * (C) 2001, 2001 Red Hat, Inc.
++ * (C) 2001-2003 Red Hat, Inc.
+ * GPL'd
+- * $Id: gen_probe.c,v 1.9 2002/09/05 05:15:32 acurtis Exp $
++ * $Id: gen_probe.c,v 1.14 2003/11/08 00:51:21 dsaxena Exp $
+ */
+
+ #include <linux/kernel.h>
++#include <linux/slab.h>
++#include <linux/module.h>
+ #include <linux/mtd/mtd.h>
+ #include <linux/mtd/map.h>
+ #include <linux/mtd/cfi.h>
++#include <linux/mtd/mtd.h>
+ #include <linux/mtd/gen_probe.h>
+
+ static struct mtd_info *check_cmd_set(struct map_info *, int);
+@@ -50,11 +53,11 @@
+
+ struct cfi_private *genprobe_ident_chips(struct map_info *map, struct chip_probe *cp)
+ {
+- unsigned long base=0;
+ struct cfi_private cfi;
+ struct cfi_private *retcfi;
+- struct flchip chip[MAX_CFI_CHIPS];
+- int i;
++ unsigned long *chip_map;
++ int i, j;
++ int max_chips;
+
+ memset(&cfi, 0, sizeof(cfi));
+
+@@ -77,8 +80,6 @@
+ return NULL;
+ }
+ #endif
+- chip[0].start = 0;
+- chip[0].state = FL_READY;
+ cfi.chipshift = cfi.cfiq->DevSize;
+
+ switch(cfi.interleave) {
+@@ -103,20 +104,28 @@
+ cfi.numchips = 1;
+
+ /*
++ * Allocate memory for bitmap of valid chips.
++ * Align bitmap storage size to full byte.
++ */
++ max_chips = map->size >> cfi.chipshift;
++ chip_map = kmalloc((max_chips / 8) + ((max_chips % 8) ? 1 : 0), GFP_KERNEL);
++ if (!chip_map) {
++ printk(KERN_WARNING "%s: kmalloc failed for CFI chip map\n", map->name);
++ kfree(cfi.cfiq);
++ return NULL;
++ }
++
++ set_bit(0, chip_map); /* Mark first chip valid */
++
++ /*
+ * Now probe for other chips, checking sensibly for aliases while
+ * we're at it. The new_chip probe above should have let the first
+ * chip in read mode.
+- *
+- * NOTE: Here, we're checking if there is room for another chip
+- * the same size within the mapping. Therefore,
+- * base + chipsize <= map->size is the correct thing to do,
+- * because, base + chipsize would be the _first_ byte of the
+- * next chip, not the one we're currently pondering.
+ */
+
+- for (base = (1<<cfi.chipshift); base + (1<<cfi.chipshift) <= map->size;
+- base += (1<<cfi.chipshift))
+- cp->probe_chip(map, base, &chip[0], &cfi);
++ for (i = 1; i < max_chips; i++) {
++ cp->probe_chip(map, i << cfi.chipshift, chip_map, &cfi);
++ }
+
+ /*
+ * Now allocate the space for the structures we need to return to
+@@ -128,19 +137,26 @@
+ if (!retcfi) {
+ printk(KERN_WARNING "%s: kmalloc failed for CFI private structure\n", map->name);
+ kfree(cfi.cfiq);
++ kfree(chip_map);
+ return NULL;
+ }
+
+ memcpy(retcfi, &cfi, sizeof(cfi));
+- memcpy(&retcfi->chips[0], chip, sizeof(struct flchip) * cfi.numchips);
++ memset(&retcfi->chips[0], 0, sizeof(struct flchip) * cfi.numchips);
+
+- /* Fix up the stuff that breaks when you move it */
+- for (i=0; i< retcfi->numchips; i++) {
+- init_waitqueue_head(&retcfi->chips[i].wq);
+- spin_lock_init(&retcfi->chips[i]._spinlock);
+- retcfi->chips[i].mutex = &retcfi->chips[i]._spinlock;
++ for (i = 0, j = 0; (j < cfi.numchips) && (i < max_chips); i++) {
++ if(test_bit(i, chip_map)) {
++ struct flchip *pchip = &retcfi->chips[j++];
++
++ pchip->start = (i << cfi.chipshift);
++ pchip->state = FL_READY;
++ init_waitqueue_head(&pchip->wq);
++ spin_lock_init(&pchip->_spinlock);
++ pchip->mutex = &pchip->_spinlock;
++ }
+ }
+
++ kfree(chip_map);
+ return retcfi;
+ }
+
+diff -Nurb linux-mips-2.4.27/drivers/mtd/chips/jedec.c linux/drivers/mtd/chips/jedec.c
+--- linux-mips-2.4.27/drivers/mtd/chips/jedec.c 2003-02-26 01:53:49.000000000 +0100
++++ linux/drivers/mtd/chips/jedec.c 2004-11-19 10:25:11.772219096 +0100
+@@ -11,10 +11,16 @@
+ * not going to guess how to send commands to them, plus I expect they will
+ * all speak CFI..
+ *
+- * $Id: jedec.c,v 1.14 2002/06/27 02:19:12 dwmw2 Exp $
++ * $Id: jedec.c,v 1.19 2003/05/29 09:25:23 dwmw2 Exp $
+ */
+
++#include <linux/init.h>
++#include <linux/module.h>
++#include <linux/kernel.h>
+ #include <linux/mtd/jedec.h>
++#include <linux/mtd/map.h>
++#include <linux/mtd/mtd.h>
++#include <linux/mtd/compatmac.h>
+
+ static struct mtd_info *jedec_probe(struct map_info *);
+ static int jedec_probe8(struct map_info *map,unsigned long base,
+@@ -33,14 +39,51 @@
+
+ /* Listing of parts and sizes. We need this table to learn the sector
+ size of the chip and the total length */
+-static const struct JEDECTable JEDEC_table[] =
+- {{0x013D,"AMD Am29F017D",2*1024*1024,64*1024,MTD_CAP_NORFLASH},
+- {0x01AD,"AMD Am29F016",2*1024*1024,64*1024,MTD_CAP_NORFLASH},
+- {0x01D5,"AMD Am29F080",1*1024*1024,64*1024,MTD_CAP_NORFLASH},
+- {0x01A4,"AMD Am29F040",512*1024,64*1024,MTD_CAP_NORFLASH},
+- {0x20E3,"AMD Am29W040B",512*1024,64*1024,MTD_CAP_NORFLASH},
+- {0xC2AD,"Macronix MX29F016",2*1024*1024,64*1024,MTD_CAP_NORFLASH},
+- {}};
++static const struct JEDECTable JEDEC_table[] = {
++ {
++ .jedec = 0x013D,
++ .name = "AMD Am29F017D",
++ .size = 2*1024*1024,
++ .sectorsize = 64*1024,
++ .capabilities = MTD_CAP_NORFLASH
++ },
++ {
++ .jedec = 0x01AD,
++ .name = "AMD Am29F016",
++ .size = 2*1024*1024,
++ .sectorsize = 64*1024,
++ .capabilities = MTD_CAP_NORFLASH
++ },
++ {
++ .jedec = 0x01D5,
++ .name = "AMD Am29F080",
++ .size = 1*1024*1024,
++ .sectorsize = 64*1024,
++ .capabilities = MTD_CAP_NORFLASH
++ },
++ {
++ .jedec = 0x01A4,
++ .name = "AMD Am29F040",
++ .size = 512*1024,
++ .sectorsize = 64*1024,
++ .capabilities = MTD_CAP_NORFLASH
++ },
++ {
++ .jedec = 0x20E3,
++ .name = "AMD Am29W040B",
++ .size = 512*1024,
++ .sectorsize = 64*1024,
++ .capabilities = MTD_CAP_NORFLASH
++ },
++ {
++ .jedec = 0xC2AD,
++ .name = "Macronix MX29F016",
++ .size = 2*1024*1024,
++ .sectorsize = 64*1024,
++ .capabilities = MTD_CAP_NORFLASH
++ },
++ { .jedec = 0x0 }
++};
+
+ static const struct JEDECTable *jedec_idtoinf(__u8 mfr,__u8 id);
+ static void jedec_sync(struct mtd_info *mtd) {};
+@@ -54,9 +97,9 @@
+
+
+ static struct mtd_chip_driver jedec_chipdrv = {
+- probe: jedec_probe,
+- name: "jedec",
+- module: THIS_MODULE
++ .probe = jedec_probe,
++ .name = "jedec",
++ .module = THIS_MODULE
+ };
+
+ /* Probe entry point */
+@@ -131,8 +174,7 @@
+ /* Generate a part name that includes the number of different chips and
+ other configuration information */
+ count = 1;
+- strncpy(Part,map->name,sizeof(Part)-10);
+- Part[sizeof(Part)-11] = 0;
++ strlcpy(Part,map->name,sizeof(Part)-10);
+ strcat(Part," ");
+ Uniq = 0;
+ for (I = 0; priv->chips[I].jedec != 0 && I < MAX_JEDEC_CHIPS; I++)
+@@ -209,8 +251,7 @@
+ // printk("Part: '%s'\n",Part);
+
+ memset(MTD,0,sizeof(*MTD));
+- // strncpy(MTD->name,Part,sizeof(MTD->name));
+- // MTD->name[sizeof(MTD->name)-1] = 0;
++ // strlcpy(MTD->name,Part,sizeof(MTD->name));
+ MTD->name = map->name;
+ MTD->type = MTD_NORFLASH;
+ MTD->flags = MTD_CAP_NORFLASH;
+@@ -229,7 +270,7 @@
+ MTD->priv = map;
+ map->fldrv_priv = priv;
+ map->fldrv = &jedec_chipdrv;
+- MOD_INC_USE_COUNT;
++ __module_get(THIS_MODULE);
+ return MTD;
+ }
+
+@@ -351,8 +392,8 @@
+ static int jedec_probe8(struct map_info *map,unsigned long base,
+ struct jedec_private *priv)
+ {
+- #define flread(x) map->read8(map,base+x)
+- #define flwrite(v,x) map->write8(map,v,base+x)
++ #define flread(x) map_read8(map,base+x)
++ #define flwrite(v,x) map_write8(map,v,base+x)
+
+ const unsigned long AutoSel1 = 0xAA;
+ const unsigned long AutoSel2 = 0x55;
+@@ -411,8 +452,8 @@
+ static int jedec_probe32(struct map_info *map,unsigned long base,
+ struct jedec_private *priv)
+ {
+- #define flread(x) map->read32(map,base+((x)<<2))
+- #define flwrite(v,x) map->write32(map,v,base+((x)<<2))
++ #define flread(x) map_read32(map,base+((x)<<2))
++ #define flwrite(v,x) map_write32(map,v,base+((x)<<2))
+
+ const unsigned long AutoSel1 = 0xAAAAAAAA;
+ const unsigned long AutoSel2 = 0x55555555;
+@@ -490,7 +531,7 @@
+ {
+ struct map_info *map = (struct map_info *)mtd->priv;
+
+- map->copy_from(map, buf, from, len);
++ map_copy_from(map, buf, from, len);
+ *retlen = len;
+ return 0;
+ }
+@@ -514,7 +555,7 @@
+ get = priv->bank_fill[0] - offset;
+
+ bank /= priv->bank_fill[0];
+- map->copy_from(map,buf + *retlen,bank*my_bank_size + offset,get);
++ map_copy_from(map,buf + *retlen,bank*my_bank_size + offset,get);
+
+ len -= get;
+ *retlen += get;
+@@ -545,8 +586,8 @@
+ static int flash_erase(struct mtd_info *mtd, struct erase_info *instr)
+ {
+ // Does IO to the currently selected chip
+- #define flread(x) map->read8(map,chip->base+((x)<<chip->addrshift))
+- #define flwrite(v,x) map->write8(map,v,chip->base+((x)<<chip->addrshift))
++ #define flread(x) map_read8(map,chip->base+((x)<<chip->addrshift))
++ #define flwrite(v,x) map_write8(map,v,chip->base+((x)<<chip->addrshift))
+
+ unsigned long Time = 0;
+ unsigned long NoTime = 0;
+@@ -608,7 +649,7 @@
+
+ /* Poll the flash for erasure completion, specs say this can take as long
+ as 480 seconds to do all the sectors (for a 2 meg flash).
+- Erasure time is dependant on chip age, temp and wear.. */
++ Erasure time is dependent on chip age, temp and wear.. */
+
+ /* This being a generic routine assumes a 32 bit bus. It does read32s
+ and bundles interleved chips into the same grouping. This will work
+@@ -651,19 +692,19 @@
+ or this is not really flash ;> */
+ switch (map->buswidth) {
+ case 1:
+- Last[0] = map->read8(map,(chip->base >> chip->addrshift) + chip->start + off);
+- Last[1] = map->read8(map,(chip->base >> chip->addrshift) + chip->start + off);
+- Last[2] = map->read8(map,(chip->base >> chip->addrshift) + chip->start + off);
++ Last[0] = map_read8(map,(chip->base >> chip->addrshift) + chip->start + off);
++ Last[1] = map_read8(map,(chip->base >> chip->addrshift) + chip->start + off);
++ Last[2] = map_read8(map,(chip->base >> chip->addrshift) + chip->start + off);
+ break;
+ case 2:
+- Last[0] = map->read16(map,(chip->base >> chip->addrshift) + chip->start + off);
+- Last[1] = map->read16(map,(chip->base >> chip->addrshift) + chip->start + off);
+- Last[2] = map->read16(map,(chip->base >> chip->addrshift) + chip->start + off);
++ Last[0] = map_read16(map,(chip->base >> chip->addrshift) + chip->start + off);
++ Last[1] = map_read16(map,(chip->base >> chip->addrshift) + chip->start + off);
++ Last[2] = map_read16(map,(chip->base >> chip->addrshift) + chip->start + off);
+ break;
+ case 3:
+- Last[0] = map->read32(map,(chip->base >> chip->addrshift) + chip->start + off);
+- Last[1] = map->read32(map,(chip->base >> chip->addrshift) + chip->start + off);
+- Last[2] = map->read32(map,(chip->base >> chip->addrshift) + chip->start + off);
++ Last[0] = map_read32(map,(chip->base >> chip->addrshift) + chip->start + off);
++ Last[1] = map_read32(map,(chip->base >> chip->addrshift) + chip->start + off);
++ Last[2] = map_read32(map,(chip->base >> chip->addrshift) + chip->start + off);
+ break;
+ }
+ Count = 3;
+@@ -699,13 +740,13 @@
+
+ switch (map->buswidth) {
+ case 1:
+- Last[Count % 4] = map->read8(map,(chip->base >> chip->addrshift) + chip->start + off);
++ Last[Count % 4] = map_read8(map,(chip->base >> chip->addrshift) + chip->start + off);
+ break;
+ case 2:
+- Last[Count % 4] = map->read16(map,(chip->base >> chip->addrshift) + chip->start + off);
++ Last[Count % 4] = map_read16(map,(chip->base >> chip->addrshift) + chip->start + off);
+ break;
+ case 4:
+- Last[Count % 4] = map->read32(map,(chip->base >> chip->addrshift) + chip->start + off);
++ Last[Count % 4] = map_read32(map,(chip->base >> chip->addrshift) + chip->start + off);
+ break;
+ }
+ Count++;
+@@ -755,10 +796,10 @@
+ size_t *retlen, const u_char *buf)
+ {
+ /* Does IO to the currently selected chip. It takes the bank addressing
+- base (which is divisable by the chip size) adds the necesary lower bits
+- of addrshift (interleve index) and then adds the control register index. */
+- #define flread(x) map->read8(map,base+(off&((1<<chip->addrshift)-1))+((x)<<chip->addrshift))
+- #define flwrite(v,x) map->write8(map,v,base+(off&((1<<chip->addrshift)-1))+((x)<<chip->addrshift))
++ base (which is divisible by the chip size) adds the necessary lower bits
++ of addrshift (interleave index) and then adds the control register index. */
++ #define flread(x) map_read8(map,base+(off&((1<<chip->addrshift)-1))+((x)<<chip->addrshift))
++ #define flwrite(v,x) map_write8(map,v,base+(off&((1<<chip->addrshift)-1))+((x)<<chip->addrshift))
+
+ struct map_info *map = (struct map_info *)mtd->priv;
+ struct jedec_private *priv = (struct jedec_private *)map->fldrv_priv;
+@@ -794,7 +835,7 @@
+ // Loop over this page
+ for (; off != (chip->size << chip->addrshift) && len != 0; start++, len--, off++,buf++)
+ {
+- unsigned char oldbyte = map->read8(map,base+off);
++ unsigned char oldbyte = map_read8(map,base+off);
+ unsigned char Last[4];
+ unsigned long Count = 0;
+
+@@ -809,10 +850,10 @@
+ flwrite(0xAA,0x555);
+ flwrite(0x55,0x2AA);
+ flwrite(0xA0,0x555);
+- map->write8(map,*buf,base + off);
+- Last[0] = map->read8(map,base + off);
+- Last[1] = map->read8(map,base + off);
+- Last[2] = map->read8(map,base + off);
++ map_write8(map,*buf,base + off);
++ Last[0] = map_read8(map,base + off);
++ Last[1] = map_read8(map,base + off);
++ Last[2] = map_read8(map,base + off);
+
+ /* Wait for the flash to finish the operation. We store the last 4
+ status bytes that have been retrieved so we can determine why
+@@ -820,7 +861,7 @@
+ failure */
+ for (Count = 3; Last[(Count - 1) % 4] != Last[(Count - 2) % 4] &&
+ Count < 10000; Count++)
+- Last[Count % 4] = map->read8(map,base + off);
++ Last[Count % 4] = map_read8(map,base + off);
+ if (Last[(Count - 1) % 4] != *buf)
+ {
+ jedec_flash_failed(Last[(Count - 3) % 4]);
+diff -Nurb linux-mips-2.4.27/drivers/mtd/chips/jedec_probe.c linux/drivers/mtd/chips/jedec_probe.c
+--- linux-mips-2.4.27/drivers/mtd/chips/jedec_probe.c 2003-02-26 01:53:49.000000000 +0100
++++ linux/drivers/mtd/chips/jedec_probe.c 2004-11-19 10:25:11.774218792 +0100
+@@ -1,9 +1,11 @@
+ /*
+ Common Flash Interface probe code.
+ (C) 2000 Red Hat. GPL'd.
+- $Id: jedec_probe.c,v 1.19 2002/11/12 13:12:10 dwmw2 Exp $
++ $Id: jedec_probe.c,v 1.44 2003/11/17 15:57:35 thayne Exp $
+ See JEDEC (http://www.jedec.org/) standard JESD21C (section 3.5)
+ for the standard this probe goes back to.
++
++ Occasionally maintained by Thayne Harbaugh tharbaugh at lnxi dot com
+ */
+
+ #include <linux/config.h>
+@@ -15,7 +17,9 @@
+ #include <linux/errno.h>
+ #include <linux/slab.h>
+ #include <linux/interrupt.h>
++#include <linux/init.h>
+
++#include <linux/mtd/mtd.h>
+ #include <linux/mtd/map.h>
+ #include <linux/mtd/cfi.h>
+ #include <linux/mtd/gen_probe.h>
+@@ -26,20 +30,24 @@
+ #define MANUFACTURER_FUJITSU 0x0004
+ #define MANUFACTURER_INTEL 0x0089
+ #define MANUFACTURER_MACRONIX 0x00C2
+-#define MANUFACTURER_ST 0x0020
++#define MANUFACTURER_PMC 0x009D
+ #define MANUFACTURER_SST 0x00BF
++#define MANUFACTURER_ST 0x0020
+ #define MANUFACTURER_TOSHIBA 0x0098
++#define MANUFACTURER_WINBOND 0x00da
+
+
+ /* AMD */
+ #define AM29F800BB 0x2258
+ #define AM29F800BT 0x22D6
++#define AM29LV400BB 0x22BA
++#define AM29LV400BT 0x22B9
+ #define AM29LV800BB 0x225B
+ #define AM29LV800BT 0x22DA
+ #define AM29LV160DT 0x22C4
+ #define AM29LV160DB 0x2249
+ #define AM29F017D 0x003D
+-#define AM29F016 0x00AD
++#define AM29F016D 0x00AD
+ #define AM29F080 0x00D5
+ #define AM29F040 0x00A4
+ #define AM29LV040B 0x004F
+@@ -54,6 +62,7 @@
+ #define AT49BV32XT 0x00C9
+
+ /* Fujitsu */
++#define MBM29F040C 0x00A4
+ #define MBM29LV650UE 0x22D7
+ #define MBM29LV320TE 0x22F6
+ #define MBM29LV320BE 0x22F9
+@@ -61,6 +70,9 @@
+ #define MBM29LV160BE 0x2249
+ #define MBM29LV800BA 0x225B
+ #define MBM29LV800TA 0x22DA
++#define MBM29LV400TC 0x22B9
++#define MBM29LV400BC 0x22BA
++
+
+ /* Intel */
+ #define I28F004B3T 0x00d4
+@@ -93,8 +105,14 @@
+ #define MX29F004T 0x0045
+ #define MX29F004B 0x0046
+
++/* PMC */
++#define PM49FL002 0x006D
++#define PM49FL004 0x006E
++#define PM49FL008 0x006A
++
+ /* ST - www.st.com */
+-#define M29W800T 0x00D7
++#define M29W800DT 0x00D7
++#define M29W800DB 0x005B
+ #define M29W160DT 0x22C4
+ #define M29W160DB 0x2249
+ #define M29W040B 0x00E3
+@@ -110,6 +128,7 @@
+ #define SST39LF040 0x00D7
+ #define SST39SF010A 0x00B5
+ #define SST39SF020A 0x00B6
++#define SST49LF004B 0x0060
+ #define SST49LF030A 0x001C
+ #define SST49LF040A 0x0051
+ #define SST49LF080A 0x005B
+@@ -122,15 +141,87 @@
+ #define TC58FVT641 0x0093
+ #define TC58FVB641 0x0095
+
++/* Winbond */
++#define W49V002A 0x00b0
++
++
++/*
++ * Unlock address sets for AMD command sets.
++ * Intel command sets use the MTD_UADDR_UNNECESSARY.
++ * Each identifier, except MTD_UADDR_UNNECESSARY, and
++ * MTD_UADDR_NO_SUPPORT must be defined below in unlock_addrs[].
++ * MTD_UADDR_NOT_SUPPORTED must be 0 so that structure
++ * initialization need not require initializing all of the
++ * unlock addresses for all bit widths.
++ */
++enum uaddr {
++ MTD_UADDR_NOT_SUPPORTED = 0, /* data width not supported */
++ MTD_UADDR_0x0555_0x02AA,
++ MTD_UADDR_0x0555_0x0AAA,
++ MTD_UADDR_0x5555_0x2AAA,
++ MTD_UADDR_0x0AAA_0x0555,
++ MTD_UADDR_DONT_CARE, /* Requires an arbitrary address */
++ MTD_UADDR_UNNECESSARY, /* Does not require any address */
++};
++
++
++struct unlock_addr {
++ int addr1;
++ int addr2;
++};
++
++
++/*
++ * I don't like the fact that the first entry in unlock_addrs[]
++ * exists, but is for MTD_UADDR_NOT_SUPPORTED - and, therefore,
++ * should not be used. The problem is that structures with
++ * initializers have extra fields initialized to 0. It is _very_
++ * desireable to have the unlock address entries for unsupported
++ * data widths automatically initialized - that means that
++ * MTD_UADDR_NOT_SUPPORTED must be 0 and the first entry here
++ * must go unused.
++ */
++static const struct unlock_addr unlock_addrs[] = {
++ [MTD_UADDR_NOT_SUPPORTED] = {
++ .addr1 = 0xffff,
++ .addr2 = 0xffff
++ },
++
++ [MTD_UADDR_0x0555_0x02AA] = {
++ .addr1 = 0x0555,
++ .addr2 = 0x02aa
++ },
++
++ [MTD_UADDR_0x0555_0x0AAA] = {
++ .addr1 = 0x0555,
++ .addr2 = 0x0aaa
++ },
++
++ [MTD_UADDR_0x5555_0x2AAA] = {
++ .addr1 = 0x5555,
++ .addr2 = 0x2aaa
++ },
++
++ [MTD_UADDR_0x0AAA_0x0555] = {
++ .addr1 = 0x0AAA,
++ .addr2 = 0x0555
++ },
++
++ [MTD_UADDR_DONT_CARE] = {
++ .addr1 = 0x0000, /* Doesn't matter which address */
++ .addr2 = 0x0000 /* is used - must be last entry */
++ }
++};
++
+
+ struct amd_flash_info {
+ const __u16 mfr_id;
+ const __u16 dev_id;
+ const char *name;
+ const int DevSize;
+- const int InterfaceDesc;
+ const int NumEraseRegions;
+ const int CmdSet;
++ const __u8 uaddr[4]; /* unlock addrs for 8, 16, 32, 64 */
+ const ulong regions[4];
+ };
+
+@@ -145,760 +236,1214 @@
+ #define SIZE_4MiB 22
+ #define SIZE_8MiB 23
+
++
++/*
++ * Please keep this list ordered by manufacturer!
++ * Fortunately, the list isn't searched often and so a
++ * slow, linear search isn't so bad.
++ */
+ static const struct amd_flash_info jedec_table[] = {
+ {
+- mfr_id: MANUFACTURER_AMD,
+- dev_id: AM29F032B,
+- name: "AMD AM29F032B",
+- DevSize: SIZE_4MiB,
+- CmdSet: P_ID_AMD_STD,
+- NumEraseRegions: 1,
+- regions: {ERASEINFO(0x10000,64)
+- }
+- }, {
+- mfr_id: MANUFACTURER_AMD,
+- dev_id: AM29LV160DT,
+- name: "AMD AM29LV160DT",
+- DevSize: SIZE_2MiB,
+- CmdSet: P_ID_AMD_STD,
+- NumEraseRegions: 4,
+- regions: {ERASEINFO(0x10000,31),
++ .mfr_id = MANUFACTURER_AMD,
++ .dev_id = AM29F032B,
++ .name = "AMD AM29F032B",
++ .uaddr = {
++ [0] = MTD_UADDR_0x0555_0x02AA /* x8 */
++ },
++ .DevSize = SIZE_4MiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 1,
++ .regions = {
++ ERASEINFO(0x10000,64)
++ }
++ }, {
++ .mfr_id = MANUFACTURER_AMD,
++ .dev_id = AM29LV160DT,
++ .name = "AMD AM29LV160DT",
++ .uaddr = {
++ [0] = MTD_UADDR_0x0AAA_0x0555, /* x8 */
++ [1] = MTD_UADDR_0x0555_0x02AA /* x16 */
++ },
++ .DevSize = SIZE_2MiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 4,
++ .regions = {
++ ERASEINFO(0x10000,31),
+ ERASEINFO(0x08000,1),
+ ERASEINFO(0x02000,2),
+ ERASEINFO(0x04000,1)
+ }
+ }, {
+- mfr_id: MANUFACTURER_AMD,
+- dev_id: AM29LV160DB,
+- name: "AMD AM29LV160DB",
+- DevSize: SIZE_2MiB,
+- CmdSet: P_ID_AMD_STD,
+- NumEraseRegions: 4,
+- regions: {ERASEINFO(0x04000,1),
++ .mfr_id = MANUFACTURER_AMD,
++ .dev_id = AM29LV160DB,
++ .name = "AMD AM29LV160DB",
++ .uaddr = {
++ [0] = MTD_UADDR_0x0AAA_0x0555, /* x8 */
++ [1] = MTD_UADDR_0x0555_0x02AA /* x16 */
++ },
++ .DevSize = SIZE_2MiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 4,
++ .regions = {
++ ERASEINFO(0x04000,1),
+ ERASEINFO(0x02000,2),
+ ERASEINFO(0x08000,1),
+ ERASEINFO(0x10000,31)
+ }
+ }, {
+- mfr_id: MANUFACTURER_TOSHIBA,
+- dev_id: TC58FVT160,
+- name: "Toshiba TC58FVT160",
+- DevSize: SIZE_2MiB,
+- CmdSet: P_ID_AMD_STD,
+- NumEraseRegions: 4,
+- regions: {ERASEINFO(0x10000,31),
++ .mfr_id = MANUFACTURER_AMD,
++ .dev_id = AM29LV400BB,
++ .name = "AMD AM29LV400BB",
++ .uaddr = {
++ [0] = MTD_UADDR_0x0AAA_0x0555, /* x8 */
++ [1] = MTD_UADDR_0x0555_0x02AA, /* x16 */
++ },
++ .DevSize = SIZE_512KiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 4,
++ .regions = {
++ ERASEINFO(0x04000,1),
++ ERASEINFO(0x02000,2),
++ ERASEINFO(0x08000,1),
++ ERASEINFO(0x10000,7)
++ }
++ }, {
++ .mfr_id = MANUFACTURER_AMD,
++ .dev_id = AM29LV400BT,
++ .name = "AMD AM29LV400BT",
++ .uaddr = {
++ [0] = MTD_UADDR_0x0AAA_0x0555, /* x8 */
++ [1] = MTD_UADDR_0x0555_0x02AA, /* x16 */
++ },
++ .DevSize = SIZE_512KiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 4,
++ .regions = {
++ ERASEINFO(0x10000,7),
+ ERASEINFO(0x08000,1),
+ ERASEINFO(0x02000,2),
+ ERASEINFO(0x04000,1)
+ }
+ }, {
+- mfr_id: MANUFACTURER_TOSHIBA,
+- dev_id: TC58FVB160,
+- name: "Toshiba TC58FVB160",
+- DevSize: SIZE_2MiB,
+- CmdSet: P_ID_AMD_STD,
+- NumEraseRegions: 4,
+- regions: {ERASEINFO(0x04000,1),
++ .mfr_id = MANUFACTURER_AMD,
++ .dev_id = AM29LV800BB,
++ .name = "AMD AM29LV800BB",
++ .uaddr = {
++ [0] = MTD_UADDR_0x0AAA_0x0555, /* x8 */
++ [1] = MTD_UADDR_0x0555_0x02AA, /* x16 */
++ },
++ .DevSize = SIZE_1MiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 4,
++ .regions = {
++ ERASEINFO(0x04000,1),
+ ERASEINFO(0x02000,2),
+ ERASEINFO(0x08000,1),
+- ERASEINFO(0x10000,31)
++ ERASEINFO(0x10000,15),
+ }
+ }, {
+- mfr_id: MANUFACTURER_TOSHIBA,
+- dev_id: TC58FVB321,
+- name: "Toshiba TC58FVB321",
+- DevSize: SIZE_4MiB,
+- CmdSet: P_ID_AMD_STD,
+- NumEraseRegions: 2,
+- regions: {ERASEINFO(0x02000,8),
+- ERASEINFO(0x10000,63)
++ .mfr_id = MANUFACTURER_AMD,
++ .dev_id = AM29F800BB,
++ .name = "AMD AM29F800BB",
++ .uaddr = {
++ [0] = MTD_UADDR_0x0AAA_0x0555, /* x8 */
++ [1] = MTD_UADDR_0x0555_0x02AA, /* x16 */
++ },
++ .DevSize = SIZE_1MiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 4,
++ .regions = {
++ ERASEINFO(0x04000,1),
++ ERASEINFO(0x02000,2),
++ ERASEINFO(0x08000,1),
++ ERASEINFO(0x10000,15),
+ }
+ }, {
+- mfr_id: MANUFACTURER_TOSHIBA,
+- dev_id: TC58FVT321,
+- name: "Toshiba TC58FVT321",
+- DevSize: SIZE_4MiB,
+- CmdSet: P_ID_AMD_STD,
+- NumEraseRegions: 2,
+- regions: {ERASEINFO(0x10000,63),
+- ERASEINFO(0x02000,8)
++ .mfr_id = MANUFACTURER_AMD,
++ .dev_id = AM29LV800BT,
++ .name = "AMD AM29LV800BT",
++ .uaddr = {
++ [0] = MTD_UADDR_0x0AAA_0x0555, /* x8 */
++ [1] = MTD_UADDR_0x0555_0x02AA, /* x16 */
++ },
++ .DevSize = SIZE_1MiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 4,
++ .regions = {
++ ERASEINFO(0x10000,15),
++ ERASEINFO(0x08000,1),
++ ERASEINFO(0x02000,2),
++ ERASEINFO(0x04000,1)
+ }
+ }, {
+- mfr_id: MANUFACTURER_TOSHIBA,
+- dev_id: TC58FVB641,
+- name: "Toshiba TC58FVB641",
+- DevSize: SIZE_8MiB,
+- CmdSet: P_ID_AMD_STD,
+- NumEraseRegions: 2,
+- regions: {ERASEINFO(0x02000,8),
+- ERASEINFO(0x10000,127)
++ .mfr_id = MANUFACTURER_AMD,
++ .dev_id = AM29F800BT,
++ .name = "AMD AM29F800BT",
++ .uaddr = {
++ [0] = MTD_UADDR_0x0AAA_0x0555, /* x8 */
++ [1] = MTD_UADDR_0x0555_0x02AA, /* x16 */
++ },
++ .DevSize = SIZE_1MiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 4,
++ .regions = {
++ ERASEINFO(0x10000,15),
++ ERASEINFO(0x08000,1),
++ ERASEINFO(0x02000,2),
++ ERASEINFO(0x04000,1)
+ }
+ }, {
+- mfr_id: MANUFACTURER_TOSHIBA,
+- dev_id: TC58FVT641,
+- name: "Toshiba TC58FVT641",
+- DevSize: SIZE_8MiB,
+- CmdSet: P_ID_AMD_STD,
+- NumEraseRegions: 2,
+- regions: {ERASEINFO(0x10000,127),
+- ERASEINFO(0x02000,8)
++ .mfr_id = MANUFACTURER_AMD,
++ .dev_id = AM29F017D,
++ .name = "AMD AM29F017D",
++ .uaddr = {
++ [0] = MTD_UADDR_DONT_CARE /* x8 */
++ },
++ .DevSize = SIZE_2MiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 1,
++ .regions = {
++ ERASEINFO(0x10000,32),
++ }
++ }, {
++ .mfr_id = MANUFACTURER_AMD,
++ .dev_id = AM29F016D,
++ .name = "AMD AM29F016D",
++ .uaddr = {
++ [0] = MTD_UADDR_0x0555_0x02AA /* x8 */
++ },
++ .DevSize = SIZE_2MiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 1,
++ .regions = {
++ ERASEINFO(0x10000,32),
++ }
++ }, {
++ .mfr_id = MANUFACTURER_AMD,
++ .dev_id = AM29F080,
++ .name = "AMD AM29F080",
++ .uaddr = {
++ [0] = MTD_UADDR_0x0555_0x02AA /* x8 */
++ },
++ .DevSize = SIZE_1MiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 1,
++ .regions = {
++ ERASEINFO(0x10000,16),
++ }
++ }, {
++ .mfr_id = MANUFACTURER_AMD,
++ .dev_id = AM29F040,
++ .name = "AMD AM29F040",
++ .uaddr = {
++ [0] = MTD_UADDR_0x0555_0x02AA /* x8 */
++ },
++ .DevSize = SIZE_512KiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 1,
++ .regions = {
++ ERASEINFO(0x10000,8),
++ }
++ }, {
++ .mfr_id = MANUFACTURER_AMD,
++ .dev_id = AM29LV040B,
++ .name = "AMD AM29LV040B",
++ .uaddr = {
++ [0] = MTD_UADDR_0x0555_0x02AA /* x8 */
++ },
++ .DevSize = SIZE_512KiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 1,
++ .regions = {
++ ERASEINFO(0x10000,8),
++ }
++ }, {
++ .mfr_id = MANUFACTURER_ATMEL,
++ .dev_id = AT49BV512,
++ .name = "Atmel AT49BV512",
++ .uaddr = {
++ [0] = MTD_UADDR_0x5555_0x2AAA /* x8 */
++ },
++ .DevSize = SIZE_64KiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 1,
++ .regions = {
++ ERASEINFO(0x10000,1)
++ }
++ }, {
++ .mfr_id = MANUFACTURER_ATMEL,
++ .dev_id = AT29LV512,
++ .name = "Atmel AT29LV512",
++ .uaddr = {
++ [0] = MTD_UADDR_0x5555_0x2AAA /* x8 */
++ },
++ .DevSize = SIZE_64KiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 1,
++ .regions = {
++ ERASEINFO(0x80,256),
++ ERASEINFO(0x80,256)
++ }
++ }, {
++ .mfr_id = MANUFACTURER_ATMEL,
++ .dev_id = AT49BV16X,
++ .name = "Atmel AT49BV16X",
++ .uaddr = {
++ [0] = MTD_UADDR_0x0555_0x0AAA, /* x8 */
++ [1] = MTD_UADDR_0x0555_0x0AAA /* x16 */
++ },
++ .DevSize = SIZE_2MiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 2,
++ .regions = {
++ ERASEINFO(0x02000,8),
++ ERASEINFO(0x10000,31)
+ }
+ }, {
+- mfr_id: MANUFACTURER_FUJITSU,
+- dev_id: MBM29LV650UE,
+- name: "Fujitsu MBM29LV650UE",
+- DevSize: SIZE_8MiB,
+- CmdSet: P_ID_AMD_STD,
+- NumEraseRegions: 1,
+- regions: {ERASEINFO(0x10000,128)
+- }
+- }, {
+- mfr_id: MANUFACTURER_FUJITSU,
+- dev_id: MBM29LV320TE,
+- name: "Fujitsu MBM29LV320TE",
+- DevSize: SIZE_4MiB,
+- CmdSet: P_ID_AMD_STD,
+- NumEraseRegions: 2,
+- regions: {ERASEINFO(0x10000,63),
++ .mfr_id = MANUFACTURER_ATMEL,
++ .dev_id = AT49BV16XT,
++ .name = "Atmel AT49BV16XT",
++ .uaddr = {
++ [0] = MTD_UADDR_0x0555_0x0AAA, /* x8 */
++ [1] = MTD_UADDR_0x0555_0x0AAA /* x16 */
++ },
++ .DevSize = SIZE_2MiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 2,
++ .regions = {
++ ERASEINFO(0x10000,31),
+ ERASEINFO(0x02000,8)
+ }
+ }, {
+- mfr_id: MANUFACTURER_FUJITSU,
+- dev_id: MBM29LV320BE,
+- name: "Fujitsu MBM29LV320BE",
+- DevSize: SIZE_4MiB,
+- CmdSet: P_ID_AMD_STD,
+- NumEraseRegions: 2,
+- regions: {ERASEINFO(0x02000,8),
++ .mfr_id = MANUFACTURER_ATMEL,
++ .dev_id = AT49BV32X,
++ .name = "Atmel AT49BV32X",
++ .uaddr = {
++ [0] = MTD_UADDR_0x0555_0x0AAA, /* x8 */
++ [1] = MTD_UADDR_0x0555_0x0AAA /* x16 */
++ },
++ .DevSize = SIZE_4MiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 2,
++ .regions = {
++ ERASEINFO(0x02000,8),
+ ERASEINFO(0x10000,63)
+ }
+ }, {
+- mfr_id: MANUFACTURER_FUJITSU,
+- dev_id: MBM29LV160TE,
+- name: "Fujitsu MBM29LV160TE",
+- DevSize: SIZE_2MiB,
+- CmdSet: P_ID_AMD_STD,
+- NumEraseRegions: 4,
+- regions: {ERASEINFO(0x10000,31),
+- ERASEINFO(0x08000,1),
+- ERASEINFO(0x02000,2),
+- ERASEINFO(0x04000,1)
++ .mfr_id = MANUFACTURER_ATMEL,
++ .dev_id = AT49BV32XT,
++ .name = "Atmel AT49BV32XT",
++ .uaddr = {
++ [0] = MTD_UADDR_0x0555_0x0AAA, /* x8 */
++ [1] = MTD_UADDR_0x0555_0x0AAA /* x16 */
++ },
++ .DevSize = SIZE_4MiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 2,
++ .regions = {
++ ERASEINFO(0x10000,63),
++ ERASEINFO(0x02000,8)
+ }
+ }, {
+- mfr_id: MANUFACTURER_FUJITSU,
+- dev_id: MBM29LV160BE,
+- name: "Fujitsu MBM29LV160BE",
+- DevSize: SIZE_2MiB,
+- CmdSet: P_ID_AMD_STD,
+- NumEraseRegions: 4,
+- regions: {ERASEINFO(0x04000,1),
+- ERASEINFO(0x02000,2),
+- ERASEINFO(0x08000,1),
+- ERASEINFO(0x10000,31)
++ .mfr_id = MANUFACTURER_FUJITSU,
++ .dev_id = MBM29F040C,
++ .name = "Fujitsu MBM29F040C",
++ .uaddr = {
++ [0] = MTD_UADDR_0x0AAA_0x0555, /* x8 */
++ },
++ .DevSize = SIZE_512KiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 1,
++ .regions = {
++ ERASEINFO(0x10000,8)
++ }
++ }, {
++ .mfr_id = MANUFACTURER_FUJITSU,
++ .dev_id = MBM29LV650UE,
++ .name = "Fujitsu MBM29LV650UE",
++ .uaddr = {
++ [0] = MTD_UADDR_DONT_CARE /* x16 */
++ },
++ .DevSize = SIZE_8MiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 1,
++ .regions = {
++ ERASEINFO(0x10000,128)
++ }
++ }, {
++ .mfr_id = MANUFACTURER_FUJITSU,
++ .dev_id = MBM29LV320TE,
++ .name = "Fujitsu MBM29LV320TE",
++ .uaddr = {
++ [0] = MTD_UADDR_0x0AAA_0x0555, /* x8 */
++ [1] = MTD_UADDR_0x0555_0x02AA, /* x16 */
++ },
++ .DevSize = SIZE_4MiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 2,
++ .regions = {
++ ERASEINFO(0x10000,63),
++ ERASEINFO(0x02000,8)
+ }
+ }, {
+- mfr_id: MANUFACTURER_FUJITSU,
+- dev_id: MBM29LV800BA,
+- name: "Fujitsu MBM29LV800BA",
+- DevSize: SIZE_1MiB,
+- CmdSet: P_ID_AMD_STD,
+- NumEraseRegions: 4,
+- regions: {ERASEINFO(0x04000,1),
+- ERASEINFO(0x02000,2),
+- ERASEINFO(0x08000,1),
+- ERASEINFO(0x10000,15)
++ .mfr_id = MANUFACTURER_FUJITSU,
++ .dev_id = MBM29LV320BE,
++ .name = "Fujitsu MBM29LV320BE",
++ .uaddr = {
++ [0] = MTD_UADDR_0x0AAA_0x0555, /* x8 */
++ [1] = MTD_UADDR_0x0555_0x02AA, /* x16 */
++ },
++ .DevSize = SIZE_4MiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 2,
++ .regions = {
++ ERASEINFO(0x02000,8),
++ ERASEINFO(0x10000,63)
+ }
+ }, {
+- mfr_id: MANUFACTURER_FUJITSU,
+- dev_id: MBM29LV800TA,
+- name: "Fujitsu MBM29LV800TA",
+- DevSize: SIZE_1MiB,
+- CmdSet: P_ID_AMD_STD,
+- NumEraseRegions: 4,
+- regions: {ERASEINFO(0x10000,15),
++ .mfr_id = MANUFACTURER_FUJITSU,
++ .dev_id = MBM29LV160TE,
++ .name = "Fujitsu MBM29LV160TE",
++ .uaddr = {
++ [0] = MTD_UADDR_0x0AAA_0x0555, /* x8 */
++ [1] = MTD_UADDR_0x0555_0x02AA, /* x16 */
++ },
++ .DevSize = SIZE_2MiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 4,
++ .regions = {
++ ERASEINFO(0x10000,31),
+ ERASEINFO(0x08000,1),
+ ERASEINFO(0x02000,2),
+ ERASEINFO(0x04000,1)
+ }
+ }, {
+- mfr_id: MANUFACTURER_AMD,
+- dev_id: AM29LV800BB,
+- name: "AMD AM29LV800BB",
+- DevSize: SIZE_1MiB,
+- CmdSet: P_ID_AMD_STD,
+- NumEraseRegions: 4,
+- regions: {ERASEINFO(0x04000,1),
++ .mfr_id = MANUFACTURER_FUJITSU,
++ .dev_id = MBM29LV160BE,
++ .name = "Fujitsu MBM29LV160BE",
++ .uaddr = {
++ [0] = MTD_UADDR_0x0AAA_0x0555, /* x8 */
++ [1] = MTD_UADDR_0x0555_0x02AA, /* x16 */
++ },
++ .DevSize = SIZE_2MiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 4,
++ .regions = {
++ ERASEINFO(0x04000,1),
+ ERASEINFO(0x02000,2),
+ ERASEINFO(0x08000,1),
+- ERASEINFO(0x10000,15),
++ ERASEINFO(0x10000,31)
+ }
+ }, {
+- mfr_id: MANUFACTURER_AMD,
+- dev_id: AM29F800BB,
+- name: "AMD AM29F800BB",
+- DevSize: SIZE_1MiB,
+- CmdSet: P_ID_AMD_STD,
+- NumEraseRegions: 4,
+- regions: {ERASEINFO(0x04000,1),
++ .mfr_id = MANUFACTURER_FUJITSU,
++ .dev_id = MBM29LV800BA,
++ .name = "Fujitsu MBM29LV800BA",
++ .uaddr = {
++ [0] = MTD_UADDR_0x0AAA_0x0555, /* x8 */
++ [1] = MTD_UADDR_0x0555_0x02AA, /* x16 */
++ },
++ .DevSize = SIZE_1MiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 4,
++ .regions = {
++ ERASEINFO(0x04000,1),
+ ERASEINFO(0x02000,2),
+ ERASEINFO(0x08000,1),
+- ERASEINFO(0x10000,15),
++ ERASEINFO(0x10000,15)
+ }
+ }, {
+- mfr_id: MANUFACTURER_AMD,
+- dev_id: AM29LV800BT,
+- name: "AMD AM29LV800BT",
+- DevSize: SIZE_1MiB,
+- CmdSet: P_ID_AMD_STD,
+- NumEraseRegions: 4,
+- regions: {ERASEINFO(0x10000,15),
++ .mfr_id = MANUFACTURER_FUJITSU,
++ .dev_id = MBM29LV800TA,
++ .name = "Fujitsu MBM29LV800TA",
++ .uaddr = {
++ [0] = MTD_UADDR_0x0AAA_0x0555, /* x8 */
++ [1] = MTD_UADDR_0x0555_0x02AA, /* x16 */
++ },
++ .DevSize = SIZE_1MiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 4,
++ .regions = {
++ ERASEINFO(0x10000,15),
+ ERASEINFO(0x08000,1),
+ ERASEINFO(0x02000,2),
+ ERASEINFO(0x04000,1)
+ }
+ }, {
+- mfr_id: MANUFACTURER_AMD,
+- dev_id: AM29F800BT,
+- name: "AMD AM29F800BT",
+- DevSize: SIZE_1MiB,
+- CmdSet: P_ID_AMD_STD,
+- NumEraseRegions: 4,
+- regions: {ERASEINFO(0x10000,15),
+- ERASEINFO(0x08000,1),
++ .mfr_id = MANUFACTURER_FUJITSU,
++ .dev_id = MBM29LV400BC,
++ .name = "Fujitsu MBM29LV400BC",
++ .uaddr = {
++ [0] = MTD_UADDR_0x0AAA_0x0555, /* x8 */
++ [1] = MTD_UADDR_0x0555_0x02AA, /* x16 */
++ },
++ .DevSize = SIZE_512KiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 4,
++ .regions = {
++ ERASEINFO(0x04000,1),
+ ERASEINFO(0x02000,2),
+- ERASEINFO(0x04000,1)
++ ERASEINFO(0x08000,1),
++ ERASEINFO(0x10000,7)
+ }
+ }, {
+- mfr_id: MANUFACTURER_AMD,
+- dev_id: AM29LV800BB,
+- name: "AMD AM29LV800BB",
+- DevSize: SIZE_1MiB,
+- CmdSet: P_ID_AMD_STD,
+- NumEraseRegions: 4,
+- regions: {ERASEINFO(0x10000,15),
++ .mfr_id = MANUFACTURER_FUJITSU,
++ .dev_id = MBM29LV400TC,
++ .name = "Fujitsu MBM29LV400TC",
++ .uaddr = {
++ [0] = MTD_UADDR_0x0AAA_0x0555, /* x8 */
++ [1] = MTD_UADDR_0x0555_0x02AA, /* x16 */
++ },
++ .DevSize = SIZE_512KiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 4,
++ .regions = {
++ ERASEINFO(0x10000,7),
+ ERASEINFO(0x08000,1),
+ ERASEINFO(0x02000,2),
+ ERASEINFO(0x04000,1)
+ }
+ }, {
+- mfr_id: MANUFACTURER_INTEL,
+- dev_id: I28F004B3B,
+- name: "Intel 28F004B3B",
+- DevSize: SIZE_512KiB,
+- CmdSet: P_ID_INTEL_STD,
+- NumEraseRegions: 2,
+- regions: {
++ .mfr_id = MANUFACTURER_INTEL,
++ .dev_id = I28F004B3B,
++ .name = "Intel 28F004B3B",
++ .uaddr = {
++ [0] = MTD_UADDR_UNNECESSARY, /* x8 */
++ },
++ .DevSize = SIZE_512KiB,
++ .CmdSet = P_ID_INTEL_STD,
++ .NumEraseRegions= 2,
++ .regions = {
+ ERASEINFO(0x02000, 8),
+ ERASEINFO(0x10000, 7),
+ }
+ }, {
+- mfr_id: MANUFACTURER_INTEL,
+- dev_id: I28F004B3T,
+- name: "Intel 28F004B3T",
+- DevSize: SIZE_512KiB,
+- CmdSet: P_ID_INTEL_STD,
+- NumEraseRegions: 2,
+- regions: {
++ .mfr_id = MANUFACTURER_INTEL,
++ .dev_id = I28F004B3T,
++ .name = "Intel 28F004B3T",
++ .uaddr = {
++ [0] = MTD_UADDR_UNNECESSARY, /* x8 */
++ },
++ .DevSize = SIZE_512KiB,
++ .CmdSet = P_ID_INTEL_STD,
++ .NumEraseRegions= 2,
++ .regions = {
+ ERASEINFO(0x10000, 7),
+ ERASEINFO(0x02000, 8),
+ }
+ }, {
+- mfr_id: MANUFACTURER_INTEL,
+- dev_id: I28F400B3B,
+- name: "Intel 28F400B3B",
+- DevSize: SIZE_512KiB,
+- CmdSet: P_ID_INTEL_STD,
+- NumEraseRegions: 2,
+- regions: {
++ .mfr_id = MANUFACTURER_INTEL,
++ .dev_id = I28F400B3B,
++ .name = "Intel 28F400B3B",
++ .uaddr = {
++ [0] = MTD_UADDR_UNNECESSARY, /* x8 */
++ [1] = MTD_UADDR_UNNECESSARY, /* x16 */
++ },
++ .DevSize = SIZE_512KiB,
++ .CmdSet = P_ID_INTEL_STD,
++ .NumEraseRegions= 2,
++ .regions = {
+ ERASEINFO(0x02000, 8),
+ ERASEINFO(0x10000, 7),
+ }
+ }, {
+- mfr_id: MANUFACTURER_INTEL,
+- dev_id: I28F400B3T,
+- name: "Intel 28F400B3T",
+- DevSize: SIZE_512KiB,
+- CmdSet: P_ID_INTEL_STD,
+- NumEraseRegions: 2,
+- regions: {
++ .mfr_id = MANUFACTURER_INTEL,
++ .dev_id = I28F400B3T,
++ .name = "Intel 28F400B3T",
++ .uaddr = {
++ [0] = MTD_UADDR_UNNECESSARY, /* x8 */
++ [1] = MTD_UADDR_UNNECESSARY, /* x16 */
++ },
++ .DevSize = SIZE_512KiB,
++ .CmdSet = P_ID_INTEL_STD,
++ .NumEraseRegions= 2,
++ .regions = {
+ ERASEINFO(0x10000, 7),
+ ERASEINFO(0x02000, 8),
+ }
+ }, {
+- mfr_id: MANUFACTURER_INTEL,
+- dev_id: I28F008B3B,
+- name: "Intel 28F008B3B",
+- DevSize: SIZE_1MiB,
+- CmdSet: P_ID_INTEL_STD,
+- NumEraseRegions: 2,
+- regions: {
++ .mfr_id = MANUFACTURER_INTEL,
++ .dev_id = I28F008B3B,
++ .name = "Intel 28F008B3B",
++ .uaddr = {
++ [0] = MTD_UADDR_UNNECESSARY, /* x8 */
++ },
++ .DevSize = SIZE_1MiB,
++ .CmdSet = P_ID_INTEL_STD,
++ .NumEraseRegions= 2,
++ .regions = {
+ ERASEINFO(0x02000, 8),
+ ERASEINFO(0x10000, 15),
+ }
+ }, {
+- mfr_id: MANUFACTURER_INTEL,
+- dev_id: I28F008B3T,
+- name: "Intel 28F008B3T",
+- DevSize: SIZE_1MiB,
+- CmdSet: P_ID_INTEL_STD,
+- NumEraseRegions: 2,
+- regions: {
++ .mfr_id = MANUFACTURER_INTEL,
++ .dev_id = I28F008B3T,
++ .name = "Intel 28F008B3T",
++ .uaddr = {
++ [0] = MTD_UADDR_UNNECESSARY, /* x8 */
++ },
++ .DevSize = SIZE_1MiB,
++ .CmdSet = P_ID_INTEL_STD,
++ .NumEraseRegions= 2,
++ .regions = {
+ ERASEINFO(0x10000, 15),
+ ERASEINFO(0x02000, 8),
+ }
+ }, {
+- mfr_id: MANUFACTURER_INTEL,
+- dev_id: I28F008S5,
+- name: "Intel 28F008S5",
+- DevSize: SIZE_1MiB,
+- CmdSet: P_ID_INTEL_EXT,
+- NumEraseRegions: 1,
+- regions: {ERASEINFO(0x10000,16),
+- }
+- }, {
+- mfr_id: MANUFACTURER_INTEL,
+- dev_id: I28F016S5,
+- name: "Intel 28F016S5",
+- DevSize: SIZE_2MiB,
+- CmdSet: P_ID_INTEL_EXT,
+- NumEraseRegions: 1,
+- regions: {ERASEINFO(0x10000,32),
+- }
+- }, {
+- mfr_id: MANUFACTURER_INTEL,
+- dev_id: I28F008SA,
+- name: "Intel 28F008SA",
+- DevSize: SIZE_1MiB,
+- CmdSet: P_ID_INTEL_STD,
+- NumEraseRegions: 1,
+- regions: {
++ .mfr_id = MANUFACTURER_INTEL,
++ .dev_id = I28F008S5,
++ .name = "Intel 28F008S5",
++ .uaddr = {
++ [0] = MTD_UADDR_UNNECESSARY, /* x8 */
++ },
++ .DevSize = SIZE_1MiB,
++ .CmdSet = P_ID_INTEL_EXT,
++ .NumEraseRegions= 1,
++ .regions = {
++ ERASEINFO(0x10000,16),
++ }
++ }, {
++ .mfr_id = MANUFACTURER_INTEL,
++ .dev_id = I28F016S5,
++ .name = "Intel 28F016S5",
++ .uaddr = {
++ [0] = MTD_UADDR_UNNECESSARY, /* x8 */
++ },
++ .DevSize = SIZE_2MiB,
++ .CmdSet = P_ID_INTEL_EXT,
++ .NumEraseRegions= 1,
++ .regions = {
++ ERASEINFO(0x10000,32),
++ }
++ }, {
++ .mfr_id = MANUFACTURER_INTEL,
++ .dev_id = I28F008SA,
++ .name = "Intel 28F008SA",
++ .uaddr = {
++ [0] = MTD_UADDR_UNNECESSARY, /* x8 */
++ },
++ .DevSize = SIZE_1MiB,
++ .CmdSet = P_ID_INTEL_STD,
++ .NumEraseRegions= 1,
++ .regions = {
+ ERASEINFO(0x10000, 16),
+ }
+ }, {
+- mfr_id: MANUFACTURER_INTEL,
+- dev_id: I28F800B3B,
+- name: "Intel 28F800B3B",
+- DevSize: SIZE_1MiB,
+- CmdSet: P_ID_INTEL_STD,
+- NumEraseRegions: 2,
+- regions: {
++ .mfr_id = MANUFACTURER_INTEL,
++ .dev_id = I28F800B3B,
++ .name = "Intel 28F800B3B",
++ .uaddr = {
++ [1] = MTD_UADDR_UNNECESSARY, /* x16 */
++ },
++ .DevSize = SIZE_1MiB,
++ .CmdSet = P_ID_INTEL_STD,
++ .NumEraseRegions= 2,
++ .regions = {
+ ERASEINFO(0x02000, 8),
+ ERASEINFO(0x10000, 15),
+ }
+ }, {
+- mfr_id: MANUFACTURER_INTEL,
+- dev_id: I28F800B3T,
+- name: "Intel 28F800B3T",
+- DevSize: SIZE_1MiB,
+- CmdSet: P_ID_INTEL_STD,
+- NumEraseRegions: 2,
+- regions: {
++ .mfr_id = MANUFACTURER_INTEL,
++ .dev_id = I28F800B3T,
++ .name = "Intel 28F800B3T",
++ .uaddr = {
++ [1] = MTD_UADDR_UNNECESSARY, /* x16 */
++ },
++ .DevSize = SIZE_1MiB,
++ .CmdSet = P_ID_INTEL_STD,
++ .NumEraseRegions= 2,
++ .regions = {
+ ERASEINFO(0x10000, 15),
+ ERASEINFO(0x02000, 8),
+ }
+ }, {
+- mfr_id: MANUFACTURER_INTEL,
+- dev_id: I28F016B3B,
+- name: "Intel 28F016B3B",
+- DevSize: SIZE_2MiB,
+- CmdSet: P_ID_INTEL_STD,
+- NumEraseRegions: 2,
+- regions: {
++ .mfr_id = MANUFACTURER_INTEL,
++ .dev_id = I28F016B3B,
++ .name = "Intel 28F016B3B",
++ .uaddr = {
++ [0] = MTD_UADDR_UNNECESSARY, /* x8 */
++ },
++ .DevSize = SIZE_2MiB,
++ .CmdSet = P_ID_INTEL_STD,
++ .NumEraseRegions= 2,
++ .regions = {
+ ERASEINFO(0x02000, 8),
+ ERASEINFO(0x10000, 31),
+ }
+ }, {
+- mfr_id: MANUFACTURER_INTEL,
+- dev_id: I28F016S3,
+- name: "Intel I28F016S3",
+- DevSize: SIZE_2MiB,
+- CmdSet: P_ID_INTEL_STD,
+- NumEraseRegions: 1,
+- regions: {
++ .mfr_id = MANUFACTURER_INTEL,
++ .dev_id = I28F016S3,
++ .name = "Intel I28F016S3",
++ .uaddr = {
++ [0] = MTD_UADDR_UNNECESSARY, /* x8 */
++ },
++ .DevSize = SIZE_2MiB,
++ .CmdSet = P_ID_INTEL_STD,
++ .NumEraseRegions= 1,
++ .regions = {
+ ERASEINFO(0x10000, 32),
+ }
+ }, {
+- mfr_id: MANUFACTURER_INTEL,
+- dev_id: I28F016B3T,
+- name: "Intel 28F016B3T",
+- DevSize: SIZE_2MiB,
+- CmdSet: P_ID_INTEL_STD,
+- NumEraseRegions: 2,
+- regions: {
++ .mfr_id = MANUFACTURER_INTEL,
++ .dev_id = I28F016B3T,
++ .name = "Intel 28F016B3T",
++ .uaddr = {
++ [0] = MTD_UADDR_UNNECESSARY, /* x8 */
++ },
++ .DevSize = SIZE_2MiB,
++ .CmdSet = P_ID_INTEL_STD,
++ .NumEraseRegions= 2,
++ .regions = {
+ ERASEINFO(0x10000, 31),
+ ERASEINFO(0x02000, 8),
+ }
+ }, {
+- mfr_id: MANUFACTURER_INTEL,
+- dev_id: I28F160B3B,
+- name: "Intel 28F160B3B",
+- DevSize: SIZE_2MiB,
+- CmdSet: P_ID_INTEL_STD,
+- NumEraseRegions: 2,
+- regions: {
++ .mfr_id = MANUFACTURER_INTEL,
++ .dev_id = I28F160B3B,
++ .name = "Intel 28F160B3B",
++ .uaddr = {
++ [1] = MTD_UADDR_UNNECESSARY, /* x16 */
++ },
++ .DevSize = SIZE_2MiB,
++ .CmdSet = P_ID_INTEL_STD,
++ .NumEraseRegions= 2,
++ .regions = {
+ ERASEINFO(0x02000, 8),
+ ERASEINFO(0x10000, 31),
+ }
+ }, {
+- mfr_id: MANUFACTURER_INTEL,
+- dev_id: I28F160B3T,
+- name: "Intel 28F160B3T",
+- DevSize: SIZE_2MiB,
+- CmdSet: P_ID_INTEL_STD,
+- NumEraseRegions: 2,
+- regions: {
++ .mfr_id = MANUFACTURER_INTEL,
++ .dev_id = I28F160B3T,
++ .name = "Intel 28F160B3T",
++ .uaddr = {
++ [1] = MTD_UADDR_UNNECESSARY, /* x16 */
++ },
++ .DevSize = SIZE_2MiB,
++ .CmdSet = P_ID_INTEL_STD,
++ .NumEraseRegions= 2,
++ .regions = {
+ ERASEINFO(0x10000, 31),
+ ERASEINFO(0x02000, 8),
+ }
+ }, {
+- mfr_id: MANUFACTURER_INTEL,
+- dev_id: I28F320B3B,
+- name: "Intel 28F320B3B",
+- DevSize: SIZE_4MiB,
+- CmdSet: P_ID_INTEL_STD,
+- NumEraseRegions: 2,
+- regions: {
++ .mfr_id = MANUFACTURER_INTEL,
++ .dev_id = I28F320B3B,
++ .name = "Intel 28F320B3B",
++ .uaddr = {
++ [1] = MTD_UADDR_UNNECESSARY, /* x16 */
++ },
++ .DevSize = SIZE_4MiB,
++ .CmdSet = P_ID_INTEL_STD,
++ .NumEraseRegions= 2,
++ .regions = {
+ ERASEINFO(0x02000, 8),
+ ERASEINFO(0x10000, 63),
+ }
+ }, {
+- mfr_id: MANUFACTURER_INTEL,
+- dev_id: I28F320B3T,
+- name: "Intel 28F320B3T",
+- DevSize: SIZE_4MiB,
+- CmdSet: P_ID_INTEL_STD,
+- NumEraseRegions: 2,
+- regions: {
++ .mfr_id = MANUFACTURER_INTEL,
++ .dev_id = I28F320B3T,
++ .name = "Intel 28F320B3T",
++ .uaddr = {
++ [1] = MTD_UADDR_UNNECESSARY, /* x16 */
++ },
++ .DevSize = SIZE_4MiB,
++ .CmdSet = P_ID_INTEL_STD,
++ .NumEraseRegions= 2,
++ .regions = {
+ ERASEINFO(0x10000, 63),
+ ERASEINFO(0x02000, 8),
+ }
+ }, {
+- mfr_id: MANUFACTURER_INTEL,
+- dev_id: I28F640B3B,
+- name: "Intel 28F640B3B",
+- DevSize: SIZE_8MiB,
+- CmdSet: P_ID_INTEL_STD,
+- NumEraseRegions: 2,
+- regions: {
++ .mfr_id = MANUFACTURER_INTEL,
++ .dev_id = I28F640B3B,
++ .name = "Intel 28F640B3B",
++ .uaddr = {
++ [1] = MTD_UADDR_UNNECESSARY, /* x16 */
++ },
++ .DevSize = SIZE_8MiB,
++ .CmdSet = P_ID_INTEL_STD,
++ .NumEraseRegions= 2,
++ .regions = {
+ ERASEINFO(0x02000, 8),
+ ERASEINFO(0x10000, 127),
+ }
+ }, {
+- mfr_id: MANUFACTURER_INTEL,
+- dev_id: I28F640B3T,
+- name: "Intel 28F640B3T",
+- DevSize: SIZE_8MiB,
+- CmdSet: P_ID_INTEL_STD,
+- NumEraseRegions: 2,
+- regions: {
++ .mfr_id = MANUFACTURER_INTEL,
++ .dev_id = I28F640B3T,
++ .name = "Intel 28F640B3T",
++ .uaddr = {
++ [1] = MTD_UADDR_UNNECESSARY, /* x16 */
++ },
++ .DevSize = SIZE_8MiB,
++ .CmdSet = P_ID_INTEL_STD,
++ .NumEraseRegions= 2,
++ .regions = {
+ ERASEINFO(0x10000, 127),
+ ERASEINFO(0x02000, 8),
+ }
+ }, {
+- mfr_id: MANUFACTURER_INTEL,
+- dev_id: I82802AB,
+- name: "Intel 82802AB",
+- DevSize: SIZE_512KiB,
+- CmdSet: P_ID_INTEL_EXT,
+- NumEraseRegions: 1,
+- regions: {ERASEINFO(0x10000,8),
+- }
+- }, {
+- mfr_id: MANUFACTURER_INTEL,
+- dev_id: I82802AC,
+- name: "Intel 82802AC",
+- DevSize: SIZE_1MiB,
+- CmdSet: P_ID_INTEL_EXT,
+- NumEraseRegions: 1,
+- regions: {ERASEINFO(0x10000,16),
+- }
+- }, {
+- mfr_id: MANUFACTURER_ST,
+- dev_id: M29W800T,
+- name: "ST M29W800T",
+- DevSize: SIZE_1MiB,
+- CmdSet: P_ID_AMD_STD,
+- NumEraseRegions: 4,
+- regions: {ERASEINFO(0x10000,15),
++ .mfr_id = MANUFACTURER_INTEL,
++ .dev_id = I82802AB,
++ .name = "Intel 82802AB",
++ .uaddr = {
++ [0] = MTD_UADDR_UNNECESSARY, /* x8 */
++ },
++ .DevSize = SIZE_512KiB,
++ .CmdSet = P_ID_INTEL_EXT,
++ .NumEraseRegions= 1,
++ .regions = {
++ ERASEINFO(0x10000,8),
++ }
++ }, {
++ .mfr_id = MANUFACTURER_INTEL,
++ .dev_id = I82802AC,
++ .name = "Intel 82802AC",
++ .uaddr = {
++ [0] = MTD_UADDR_UNNECESSARY, /* x8 */
++ },
++ .DevSize = SIZE_1MiB,
++ .CmdSet = P_ID_INTEL_EXT,
++ .NumEraseRegions= 1,
++ .regions = {
++ ERASEINFO(0x10000,16),
++ }
++ }, {
++ .mfr_id = MANUFACTURER_MACRONIX,
++ .dev_id = MX29LV160T,
++ .name = "MXIC MX29LV160T",
++ .uaddr = {
++ [0] = MTD_UADDR_0x0AAA_0x0555, /* x8 */
++ [1] = MTD_UADDR_0x0555_0x02AA, /* x16 */
++ },
++ .DevSize = SIZE_2MiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 4,
++ .regions = {
++ ERASEINFO(0x10000,31),
+ ERASEINFO(0x08000,1),
+ ERASEINFO(0x02000,2),
+ ERASEINFO(0x04000,1)
+ }
+ }, {
+- mfr_id: MANUFACTURER_ST,
+- dev_id: M29W160DT,
+- name: "ST M29W160DT",
+- DevSize: SIZE_2MiB,
+- CmdSet: P_ID_AMD_STD,
+- NumEraseRegions: 4,
+- regions: {ERASEINFO(0x10000,31),
+- ERASEINFO(0x08000,1),
+- ERASEINFO(0x02000,2),
+- ERASEINFO(0x04000,1)
+- }
+- }, {
+- mfr_id: MANUFACTURER_ST,
+- dev_id: M29W160DB,
+- name: "ST M29W160DB",
+- DevSize: SIZE_2MiB,
+- CmdSet: P_ID_AMD_STD,
+- NumEraseRegions: 4,
+- regions: {ERASEINFO(0x04000,1),
++ .mfr_id = MANUFACTURER_MACRONIX,
++ .dev_id = MX29LV160B,
++ .name = "MXIC MX29LV160B",
++ .uaddr = {
++ [0] = MTD_UADDR_0x0AAA_0x0555, /* x8 */
++ [1] = MTD_UADDR_0x0555_0x02AA, /* x16 */
++ },
++ .DevSize = SIZE_2MiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 4,
++ .regions = {
++ ERASEINFO(0x04000,1),
+ ERASEINFO(0x02000,2),
+ ERASEINFO(0x08000,1),
+ ERASEINFO(0x10000,31)
+ }
+ }, {
+- mfr_id: MANUFACTURER_ATMEL,
+- dev_id: AT49BV512,
+- name: "Atmel AT49BV512",
+- DevSize: SIZE_64KiB,
+- CmdSet: P_ID_AMD_STD,
+- NumEraseRegions: 1,
+- regions: {ERASEINFO(0x10000,1)
+- }
+- }, {
+- mfr_id: MANUFACTURER_ATMEL,
+- dev_id: AT29LV512,
+- name: "Atmel AT29LV512",
+- DevSize: SIZE_64KiB,
+- CmdSet: P_ID_AMD_STD,
+- NumEraseRegions: 1,
+- regions: {
+- ERASEINFO(0x80,256),
+- ERASEINFO(0x80,256)
+- }
+- }, {
+- mfr_id: MANUFACTURER_ATMEL,
+- dev_id: AT49BV16X,
+- name: "Atmel AT49BV16X",
+- DevSize: SIZE_2MiB,
+- CmdSet: P_ID_AMD_STD,
+- NumEraseRegions: 2,
+- regions: {ERASEINFO(0x02000,8),
+- ERASEINFO(0x10000,31)
++ .mfr_id = MANUFACTURER_MACRONIX,
++ .dev_id = MX29F016,
++ .name = "Macronix MX29F016",
++ .uaddr = {
++ [0] = MTD_UADDR_0x0555_0x02AA /* x8 */
++ },
++ .DevSize = SIZE_2MiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 1,
++ .regions = {
++ ERASEINFO(0x10000,32),
++ }
++ }, {
++ .mfr_id = MANUFACTURER_MACRONIX,
++ .dev_id = MX29F004T,
++ .name = "Macronix MX29F004T",
++ .uaddr = {
++ [0] = MTD_UADDR_0x0555_0x02AA /* x8 */
++ },
++ .DevSize = SIZE_512KiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 4,
++ .regions = {
++ ERASEINFO(0x10000,7),
++ ERASEINFO(0x08000,1),
++ ERASEINFO(0x02000,2),
++ ERASEINFO(0x04000,1),
+ }
+ }, {
+- mfr_id: MANUFACTURER_ATMEL,
+- dev_id: AT49BV16XT,
+- name: "Atmel AT49BV16XT",
+- DevSize: SIZE_2MiB,
+- CmdSet: P_ID_AMD_STD,
+- NumEraseRegions: 2,
+- regions: {ERASEINFO(0x10000,31),
+- ERASEINFO(0x02000,8)
++ .mfr_id = MANUFACTURER_MACRONIX,
++ .dev_id = MX29F004B,
++ .name = "Macronix MX29F004B",
++ .uaddr = {
++ [0] = MTD_UADDR_0x0555_0x02AA /* x8 */
++ },
++ .DevSize = SIZE_512KiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 4,
++ .regions = {
++ ERASEINFO(0x04000,1),
++ ERASEINFO(0x02000,2),
++ ERASEINFO(0x08000,1),
++ ERASEINFO(0x10000,7),
+ }
+ }, {
+- mfr_id: MANUFACTURER_ATMEL,
+- dev_id: AT49BV32X,
+- name: "Atmel AT49BV32X",
+- DevSize: SIZE_4MiB,
+- CmdSet: P_ID_AMD_STD,
+- NumEraseRegions: 2,
+- regions: {ERASEINFO(0x02000,8),
+- ERASEINFO(0x10000,63)
++ .mfr_id = MANUFACTURER_PMC,
++ .dev_id = PM49FL002,
++ .name = "PMC Pm49FL002",
++ .uaddr = {
++ [0] = MTD_UADDR_0x5555_0x2AAA /* x8 */
++ },
++ .DevSize = SIZE_256KiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 1,
++ .regions = {
++ ERASEINFO( 0x01000, 64 )
++ }
++ }, {
++ .mfr_id = MANUFACTURER_PMC,
++ .dev_id = PM49FL004,
++ .name = "PMC Pm49FL004",
++ .uaddr = {
++ [0] = MTD_UADDR_0x5555_0x2AAA /* x8 */
++ },
++ .DevSize = SIZE_512KiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 1,
++ .regions = {
++ ERASEINFO( 0x01000, 128 )
++ }
++ }, {
++ .mfr_id = MANUFACTURER_PMC,
++ .dev_id = PM49FL008,
++ .name = "PMC Pm49FL008",
++ .uaddr = {
++ [0] = MTD_UADDR_0x5555_0x2AAA /* x8 */
++ },
++ .DevSize = SIZE_1MiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 1,
++ .regions = {
++ ERASEINFO( 0x01000, 256 )
++ }
++ }, {
++ .mfr_id = MANUFACTURER_SST,
++ .dev_id = SST39LF512,
++ .name = "SST 39LF512",
++ .uaddr = {
++ [0] = MTD_UADDR_0x5555_0x2AAA /* x8 */
++ },
++ .DevSize = SIZE_64KiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 1,
++ .regions = {
++ ERASEINFO(0x01000,16),
++ }
++ }, {
++ .mfr_id = MANUFACTURER_SST,
++ .dev_id = SST39LF010,
++ .name = "SST 39LF010",
++ .uaddr = {
++ [0] = MTD_UADDR_0x5555_0x2AAA /* x8 */
++ },
++ .DevSize = SIZE_128KiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 1,
++ .regions = {
++ ERASEINFO(0x01000,32),
++ }
++ }, {
++ .mfr_id = MANUFACTURER_SST,
++ .dev_id = SST39LF020,
++ .name = "SST 39LF020",
++ .uaddr = {
++ [0] = MTD_UADDR_0x5555_0x2AAA /* x8 */
++ },
++ .DevSize = SIZE_256KiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 1,
++ .regions = {
++ ERASEINFO(0x01000,64),
++ }
++ }, {
++ .mfr_id = MANUFACTURER_SST,
++ .dev_id = SST39LF040,
++ .name = "SST 39LF040",
++ .uaddr = {
++ [0] = MTD_UADDR_0x5555_0x2AAA /* x8 */
++ },
++ .DevSize = SIZE_512KiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 1,
++ .regions = {
++ ERASEINFO(0x01000,128),
++ }
++ }, {
++ .mfr_id = MANUFACTURER_SST,
++ .dev_id = SST39SF010A,
++ .name = "SST 39SF010A",
++ .uaddr = {
++ [0] = MTD_UADDR_0x5555_0x2AAA /* x8 */
++ },
++ .DevSize = SIZE_128KiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 1,
++ .regions = {
++ ERASEINFO(0x01000,32),
++ }
++ }, {
++ .mfr_id = MANUFACTURER_SST,
++ .dev_id = SST39SF020A,
++ .name = "SST 39SF020A",
++ .uaddr = {
++ [0] = MTD_UADDR_0x5555_0x2AAA /* x8 */
++ },
++ .DevSize = SIZE_256KiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 1,
++ .regions = {
++ ERASEINFO(0x01000,64),
++ }
++ }, {
++ .mfr_id = MANUFACTURER_SST,
++ .dev_id = SST49LF004B,
++ .name = "SST 49LF004B",
++ .uaddr = {
++ [0] = MTD_UADDR_0x5555_0x2AAA /* x8 */
++ },
++ .DevSize = SIZE_512KiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 1,
++ .regions = {
++ ERASEINFO(0x01000,128),
++ }
++ }, {
++ .mfr_id = MANUFACTURER_SST,
++ .dev_id = SST49LF030A,
++ .name = "SST 49LF030A",
++ .uaddr = {
++ [0] = MTD_UADDR_0x5555_0x2AAA /* x8 */
++ },
++ .DevSize = SIZE_512KiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 1,
++ .regions = {
++ ERASEINFO(0x01000,96),
++ }
++ }, {
++ .mfr_id = MANUFACTURER_SST,
++ .dev_id = SST49LF040A,
++ .name = "SST 49LF040A",
++ .uaddr = {
++ [0] = MTD_UADDR_0x5555_0x2AAA /* x8 */
++ },
++ .DevSize = SIZE_512KiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 1,
++ .regions = {
++ ERASEINFO(0x01000,128),
++ }
++ }, {
++ .mfr_id = MANUFACTURER_SST,
++ .dev_id = SST49LF080A,
++ .name = "SST 49LF080A",
++ .uaddr = {
++ [0] = MTD_UADDR_0x5555_0x2AAA /* x8 */
++ },
++ .DevSize = SIZE_1MiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 1,
++ .regions = {
++ ERASEINFO(0x01000,256),
++ }
++ }, {
++ .mfr_id = MANUFACTURER_ST, /* FIXME - CFI device? */
++ .dev_id = M29W800DT,
++ .name = "ST M29W800DT",
++ .uaddr = {
++ [0] = MTD_UADDR_0x5555_0x2AAA, /* x8 */
++ [1] = MTD_UADDR_0x5555_0x2AAA /* x16 */
++ },
++ .DevSize = SIZE_1MiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 4,
++ .regions = {
++ ERASEINFO(0x10000,15),
++ ERASEINFO(0x08000,1),
++ ERASEINFO(0x02000,2),
++ ERASEINFO(0x04000,1)
+ }
+ }, {
+- mfr_id: MANUFACTURER_ATMEL,
+- dev_id: AT49BV32XT,
+- name: "Atmel AT49BV32XT",
+- DevSize: SIZE_4MiB,
+- CmdSet: P_ID_AMD_STD,
+- NumEraseRegions: 2,
+- regions: {ERASEINFO(0x10000,63),
+- ERASEINFO(0x02000,8)
++ .mfr_id = MANUFACTURER_ST, /* FIXME - CFI device? */
++ .dev_id = M29W800DB,
++ .name = "ST M29W800DB",
++ .uaddr = {
++ [0] = MTD_UADDR_0x5555_0x2AAA, /* x8 */
++ [1] = MTD_UADDR_0x5555_0x2AAA /* x16 */
++ },
++ .DevSize = SIZE_1MiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 4,
++ .regions = {
++ ERASEINFO(0x04000,1),
++ ERASEINFO(0x02000,2),
++ ERASEINFO(0x08000,1),
++ ERASEINFO(0x10000,15)
+ }
+ }, {
+- mfr_id: MANUFACTURER_AMD,
+- dev_id: AM29F017D,
+- name: "AMD AM29F017D",
+- DevSize: SIZE_2MiB,
+- CmdSet: P_ID_AMD_STD,
+- NumEraseRegions: 1,
+- regions: {ERASEINFO(0x10000,32),
+- }
+- }, {
+- mfr_id: MANUFACTURER_AMD,
+- dev_id: AM29F016,
+- name: "AMD AM29F016",
+- DevSize: SIZE_2MiB,
+- CmdSet: P_ID_AMD_STD,
+- NumEraseRegions: 1,
+- regions: {ERASEINFO(0x10000,32),
+- }
+- }, {
+- mfr_id: MANUFACTURER_AMD,
+- dev_id: AM29F080,
+- name: "AMD AM29F080",
+- DevSize: SIZE_1MiB,
+- CmdSet: P_ID_AMD_STD,
+- NumEraseRegions: 1,
+- regions: {ERASEINFO(0x10000,16),
+- }
+- }, {
+- mfr_id: MANUFACTURER_AMD,
+- dev_id: AM29F040,
+- name: "AMD AM29F040",
+- DevSize: SIZE_512KiB,
+- CmdSet: P_ID_AMD_STD,
+- NumEraseRegions: 1,
+- regions: {ERASEINFO(0x10000,8),
+- }
+- }, {
+- mfr_id: MANUFACTURER_AMD,
+- dev_id: AM29LV040B,
+- name: "AMD AM29LV040B",
+- DevSize: SIZE_512KiB,
+- CmdSet: P_ID_AMD_STD,
+- NumEraseRegions: 1,
+- regions: {ERASEINFO(0x10000,8),
+- }
+- }, {
+- mfr_id: MANUFACTURER_ST,
+- dev_id: M29W040B,
+- name: "ST M29W040B",
+- DevSize: SIZE_512KiB,
+- CmdSet: P_ID_AMD_STD,
+- NumEraseRegions: 1,
+- regions: {ERASEINFO(0x10000,8),
+- }
+- }, {
+- mfr_id: MANUFACTURER_MACRONIX,
+- dev_id: MX29LV160T,
+- name: "MXIC MX29LV160T",
+- DevSize: SIZE_2MiB,
+- CmdSet: P_ID_AMD_STD,
+- NumEraseRegions: 4,
+- regions: {ERASEINFO(0x10000,31),
++ .mfr_id = MANUFACTURER_ST, /* FIXME - CFI device? */
++ .dev_id = M29W160DT,
++ .name = "ST M29W160DT",
++ .uaddr = {
++ [0] = MTD_UADDR_0x0555_0x02AA, /* x8 */
++ [1] = MTD_UADDR_0x0555_0x02AA, /* x16 */
++ },
++ .DevSize = SIZE_2MiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 4,
++ .regions = {
++ ERASEINFO(0x10000,31),
+ ERASEINFO(0x08000,1),
+ ERASEINFO(0x02000,2),
+ ERASEINFO(0x04000,1)
+ }
+ }, {
+- mfr_id: MANUFACTURER_MACRONIX,
+- dev_id: MX29LV160B,
+- name: "MXIC MX29LV160B",
+- DevSize: SIZE_2MiB,
+- CmdSet: P_ID_AMD_STD,
+- NumEraseRegions: 4,
+- regions: {ERASEINFO(0x04000,1),
++ .mfr_id = MANUFACTURER_ST, /* FIXME - CFI device? */
++ .dev_id = M29W160DB,
++ .name = "ST M29W160DB",
++ .uaddr = {
++ [0] = MTD_UADDR_0x0555_0x02AA, /* x8 */
++ [1] = MTD_UADDR_0x0555_0x02AA, /* x16 */
++ },
++ .DevSize = SIZE_2MiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 4,
++ .regions = {
++ ERASEINFO(0x04000,1),
+ ERASEINFO(0x02000,2),
+ ERASEINFO(0x08000,1),
+ ERASEINFO(0x10000,31)
+ }
+ }, {
+- mfr_id: MANUFACTURER_MACRONIX,
+- dev_id: MX29F016,
+- name: "Macronix MX29F016",
+- DevSize: SIZE_2MiB,
+- CmdSet: P_ID_AMD_STD,
+- NumEraseRegions: 1,
+- regions: {ERASEINFO(0x10000,32),
+- }
+- }, {
+- mfr_id: MANUFACTURER_MACRONIX,
+- dev_id: MX29F004T,
+- name: "Macronix MX29F004T",
+- DevSize: SIZE_512KiB,
+- CmdSet: P_ID_AMD_STD,
+- NumEraseRegions: 4,
+- regions: {ERASEINFO(0x10000,7),
++ .mfr_id = MANUFACTURER_ST,
++ .dev_id = M29W040B,
++ .name = "ST M29W040B",
++ .uaddr = {
++ [0] = MTD_UADDR_0x0555_0x02AA /* x8 */
++ },
++ .DevSize = SIZE_512KiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 1,
++ .regions = {
++ ERASEINFO(0x10000,8),
++ }
++ }, {
++ .mfr_id = MANUFACTURER_TOSHIBA,
++ .dev_id = TC58FVT160,
++ .name = "Toshiba TC58FVT160",
++ .uaddr = {
++ [0] = MTD_UADDR_0x0AAA_0x0555, /* x8 */
++ [1] = MTD_UADDR_0x0555_0x02AA /* x16 */
++ },
++ .DevSize = SIZE_2MiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 4,
++ .regions = {
++ ERASEINFO(0x10000,31),
+ ERASEINFO(0x08000,1),
+ ERASEINFO(0x02000,2),
+- ERASEINFO(0x04000,1),
++ ERASEINFO(0x04000,1)
+ }
+ }, {
+- mfr_id: MANUFACTURER_MACRONIX,
+- dev_id: MX29F004B,
+- name: "Macronix MX29F004B",
+- DevSize: SIZE_512KiB,
+- CmdSet: P_ID_AMD_STD,
+- NumEraseRegions: 4,
+- regions: {ERASEINFO(0x04000,1),
++ .mfr_id = MANUFACTURER_TOSHIBA,
++ .dev_id = TC58FVB160,
++ .name = "Toshiba TC58FVB160",
++ .uaddr = {
++ [0] = MTD_UADDR_0x0AAA_0x0555, /* x8 */
++ [1] = MTD_UADDR_0x0555_0x02AA /* x16 */
++ },
++ .DevSize = SIZE_2MiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 4,
++ .regions = {
++ ERASEINFO(0x04000,1),
+ ERASEINFO(0x02000,2),
+ ERASEINFO(0x08000,1),
+- ERASEINFO(0x10000,7),
++ ERASEINFO(0x10000,31)
++ }
++ }, {
++ .mfr_id = MANUFACTURER_TOSHIBA,
++ .dev_id = TC58FVB321,
++ .name = "Toshiba TC58FVB321",
++ .uaddr = {
++ [0] = MTD_UADDR_0x0AAA_0x0555, /* x8 */
++ [1] = MTD_UADDR_0x0555_0x02AA /* x16 */
++ },
++ .DevSize = SIZE_4MiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 2,
++ .regions = {
++ ERASEINFO(0x02000,8),
++ ERASEINFO(0x10000,63)
++ }
++ }, {
++ .mfr_id = MANUFACTURER_TOSHIBA,
++ .dev_id = TC58FVT321,
++ .name = "Toshiba TC58FVT321",
++ .uaddr = {
++ [0] = MTD_UADDR_0x0AAA_0x0555, /* x8 */
++ [1] = MTD_UADDR_0x0555_0x02AA /* x16 */
++ },
++ .DevSize = SIZE_4MiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 2,
++ .regions = {
++ ERASEINFO(0x10000,63),
++ ERASEINFO(0x02000,8)
++ }
++ }, {
++ .mfr_id = MANUFACTURER_TOSHIBA,
++ .dev_id = TC58FVB641,
++ .name = "Toshiba TC58FVB641",
++ .uaddr = {
++ [0] = MTD_UADDR_0x0AAA_0x0555, /* x8 */
++ [1] = MTD_UADDR_0x0555_0x02AA, /* x16 */
++ },
++ .DevSize = SIZE_8MiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 2,
++ .regions = {
++ ERASEINFO(0x02000,8),
++ ERASEINFO(0x10000,127)
++ }
++ }, {
++ .mfr_id = MANUFACTURER_TOSHIBA,
++ .dev_id = TC58FVT641,
++ .name = "Toshiba TC58FVT641",
++ .uaddr = {
++ [0] = MTD_UADDR_0x0AAA_0x0555, /* x8 */
++ [1] = MTD_UADDR_0x0555_0x02AA, /* x16 */
++ },
++ .DevSize = SIZE_8MiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 2,
++ .regions = {
++ ERASEINFO(0x10000,127),
++ ERASEINFO(0x02000,8)
+ }
+ }, {
+- mfr_id: MANUFACTURER_SST,
+- dev_id: SST39LF512,
+- name: "SST 39LF512",
+- DevSize: SIZE_64KiB,
+- CmdSet: P_ID_AMD_STD,
+- NumEraseRegions: 1,
+- regions: {ERASEINFO(0x01000,16),
+- }
+- }, {
+- mfr_id: MANUFACTURER_SST,
+- dev_id: SST39LF010,
+- name: "SST 39LF010",
+- DevSize: SIZE_128KiB,
+- CmdSet: P_ID_AMD_STD,
+- NumEraseRegions: 1,
+- regions: {ERASEINFO(0x01000,32),
+- }
+- }, {
+- mfr_id: MANUFACTURER_SST,
+- dev_id: SST39LF020,
+- name: "SST 39LF020",
+- DevSize: SIZE_256KiB,
+- CmdSet: P_ID_AMD_STD,
+- NumEraseRegions: 1,
+- regions: {ERASEINFO(0x01000,64),
+- }
+- }, {
+- mfr_id: MANUFACTURER_SST,
+- dev_id: SST39LF040,
+- name: "SST 39LF040",
+- DevSize: SIZE_512KiB,
+- CmdSet: P_ID_AMD_STD,
+- NumEraseRegions: 1,
+- regions: {ERASEINFO(0x01000,128),
+- }
+- }, {
+- mfr_id: MANUFACTURER_SST,
+- dev_id: SST39SF010A,
+- name: "SST 39SF010A",
+- DevSize: SIZE_128KiB,
+- CmdSet: P_ID_AMD_STD,
+- NumEraseRegions: 1,
+- regions: {ERASEINFO(0x01000,32),
+- }
+- }, {
+- mfr_id: MANUFACTURER_SST,
+- dev_id: SST39SF020A,
+- name: "SST 39SF020A",
+- DevSize: SIZE_256KiB,
+- CmdSet: P_ID_AMD_STD,
+- NumEraseRegions: 1,
+- regions: {ERASEINFO(0x01000,64),
+- }
+- }, {
+- mfr_id: MANUFACTURER_SST,
+- dev_id: SST49LF030A,
+- name: "SST 49LF030A",
+- DevSize: SIZE_512KiB,
+- CmdSet: P_ID_AMD_STD,
+- NumEraseRegions: 1,
+- regions: {ERASEINFO(0x01000,96),
+- }
+- }, {
+- mfr_id: MANUFACTURER_SST,
+- dev_id: SST49LF040A,
+- name: "SST 49LF040A",
+- DevSize: SIZE_512KiB,
+- CmdSet: P_ID_AMD_STD,
+- NumEraseRegions: 1,
+- regions: {ERASEINFO(0x01000,128),
+- }
+- }, {
+- mfr_id: MANUFACTURER_SST,
+- dev_id: SST49LF080A,
+- name: "SST 49LF080A",
+- DevSize: SIZE_1MiB,
+- CmdSet: P_ID_AMD_STD,
+- NumEraseRegions: 1,
+- regions: {ERASEINFO(0x01000,256),
++ .mfr_id = MANUFACTURER_WINBOND,
++ .dev_id = W49V002A,
++ .name = "Winbond W49V002A",
++ .uaddr = {
++ [0] = MTD_UADDR_0x5555_0x2AAA /* x8 */
++ },
++ .DevSize = SIZE_256KiB,
++ .CmdSet = P_ID_AMD_STD,
++ .NumEraseRegions= 4,
++ .regions = {
++ ERASEINFO(0x10000, 3),
++ ERASEINFO(0x08000, 1),
++ ERASEINFO(0x02000, 2),
++ ERASEINFO(0x04000, 1),
+ }
+ }
+ };
+@@ -907,7 +1452,7 @@
+ static int cfi_jedec_setup(struct cfi_private *p_cfi, int index);
+
+ static int jedec_probe_chip(struct map_info *map, __u32 base,
+- struct flchip *chips, struct cfi_private *cfi);
++ unsigned long *chip_map, struct cfi_private *cfi);
+
+ struct mtd_info *jedec_probe(struct map_info *map);
+
+@@ -944,11 +1489,43 @@
+ * this should be safe.
+ */
+ cfi_send_gen_cmd(0xFF, 0, base, map, cfi, cfi->device_type, NULL);
++ /* FIXME - should have reset delay before continuing */
++}
+
++
++static inline __u8 finfo_uaddr(const struct amd_flash_info *finfo, int device_type)
++{
++ int uaddr_idx;
++ __u8 uaddr = MTD_UADDR_NOT_SUPPORTED;
++
++ switch ( device_type ) {
++ case CFI_DEVICETYPE_X8: uaddr_idx = 0; break;
++ case CFI_DEVICETYPE_X16: uaddr_idx = 1; break;
++ case CFI_DEVICETYPE_X32: uaddr_idx = 2; break;
++ default:
++ printk(KERN_NOTICE "MTD: %s(): unknown device_type %d\n",
++ __func__, device_type);
++ goto uaddr_done;
++ }
++
++ uaddr = finfo->uaddr[uaddr_idx];
++
++ if (uaddr != MTD_UADDR_NOT_SUPPORTED ) {
++ /* ASSERT("The unlock addresses for non-8-bit mode
++ are bollocks. We don't really need an array."); */
++ uaddr = finfo->uaddr[0];
++ }
++
++ uaddr_done:
++ return uaddr;
+ }
++
++
+ static int cfi_jedec_setup(struct cfi_private *p_cfi, int index)
+ {
+ int i,num_erase_regions;
++ unsigned long mask;
++ __u8 uaddr;
+
+ printk("Found: %s\n",jedec_table[index].name);
+
+@@ -971,41 +1548,170 @@
+ p_cfi->cfiq->EraseRegionInfo[i] = jedec_table[index].regions[i];
+ }
+ p_cfi->cmdset_priv = 0;
++
++ /* This may be redundant for some cases, but it doesn't hurt */
++ p_cfi->mfr = jedec_table[index].mfr_id;
++ p_cfi->id = jedec_table[index].dev_id;
++
++ uaddr = finfo_uaddr(&jedec_table[index], p_cfi->device_type);
++ if ( uaddr == MTD_UADDR_NOT_SUPPORTED ) {
++ kfree( p_cfi->cfiq );
++ return 0;
++ }
++
++ /* Mask out address bits which are smaller than the device type */
++ mask = ~(p_cfi->device_type-1);
++ p_cfi->addr_unlock1 = unlock_addrs[uaddr].addr1 & mask;
++ p_cfi->addr_unlock2 = unlock_addrs[uaddr].addr2 & mask;
++
+ return 1; /* ok */
+ }
+
+-static int jedec_probe_chip(struct map_info *map, __u32 base,
+- struct flchip *chips, struct cfi_private *cfi)
++
++/*
++ * There is a BIG problem properly ID'ing the JEDEC devic and guaranteeing
++ * the mapped address, unlock addresses, and proper chip ID. This function
++ * attempts to minimize errors. It is doubtfull that this probe will ever
++ * be perfect - consequently there should be some module parameters that
++ * could be manually specified to force the chip info.
++ */
++static inline int jedec_match( __u32 base,
++ struct map_info *map,
++ struct cfi_private *cfi,
++ const struct amd_flash_info *finfo )
+ {
+- int i;
+- int unlockpass = 0;
++ int rc = 0; /* failure until all tests pass */
++ u32 mfr, id;
++ __u8 uaddr;
++ unsigned long mask;
+
+- if (!cfi->numchips) {
++ /*
++ * The IDs must match. For X16 and X32 devices operating in
++ * a lower width ( X8 or X16 ), the device ID's are usually just
++ * the lower byte(s) of the larger device ID for wider mode. If
++ * a part is found that doesn't fit this assumption (device id for
++ * smaller width mode is completely unrealated to full-width mode)
++ * then the jedec_table[] will have to be augmented with the IDs
++ * for different widths.
++ */
+ switch (cfi->device_type) {
+ case CFI_DEVICETYPE_X8:
+- cfi->addr_unlock1 = 0x555;
+- cfi->addr_unlock2 = 0x2aa;
++ mfr = (__u8)finfo->mfr_id;
++ id = (__u8)finfo->dev_id;
+ break;
+ case CFI_DEVICETYPE_X16:
+- cfi->addr_unlock1 = 0xaaa;
+- if (map->buswidth == cfi->interleave) {
+- /* X16 chip(s) in X8 mode */
+- cfi->addr_unlock2 = 0x555;
+- } else {
+- cfi->addr_unlock2 = 0x554;
+- }
++ mfr = (__u16)finfo->mfr_id;
++ id = (__u16)finfo->dev_id;
+ break;
+ case CFI_DEVICETYPE_X32:
+- cfi->addr_unlock1 = 0x1555;
+- cfi->addr_unlock2 = 0xaaa;
++ mfr = (__u16)finfo->mfr_id;
++ id = (__u32)finfo->dev_id;
+ break;
+ default:
+- printk(KERN_NOTICE "Eep. Unknown jedec_probe device type %d\n", cfi->device_type);
+- return 0;
++ printk(KERN_WARNING
++ "MTD %s(): Unsupported device type %d\n",
++ __func__, cfi->device_type);
++ goto match_done;
++ }
++ if ( cfi->mfr != mfr || cfi->id != id ) {
++ goto match_done;
++ }
++
++ /* the part size must fit in the memory window */
++ DEBUG( MTD_DEBUG_LEVEL3,
++ "MTD %s(): Check fit 0x%.8x + 0x%.8x = 0x%.8x\n",
++ __func__, base, 1 << finfo->DevSize, base + (1 << finfo->DevSize) );
++ if ( base + cfi->interleave * ( 1 << finfo->DevSize ) > map->size ) {
++ DEBUG( MTD_DEBUG_LEVEL3,
++ "MTD %s(): 0x%.4x 0x%.4x %dKiB doesn't fit\n",
++ __func__, finfo->mfr_id, finfo->dev_id,
++ 1 << finfo->DevSize );
++ goto match_done;
++ }
++
++ uaddr = finfo_uaddr(finfo, cfi->device_type);
++ if ( uaddr == MTD_UADDR_NOT_SUPPORTED ) {
++ goto match_done;
++ }
++
++ mask = ~(cfi->device_type-1);
++
++ DEBUG( MTD_DEBUG_LEVEL3, "MTD %s(): check unlock addrs 0x%.4x 0x%.4x\n",
++ __func__, cfi->addr_unlock1, cfi->addr_unlock2 );
++ if ( MTD_UADDR_UNNECESSARY != uaddr && MTD_UADDR_DONT_CARE != uaddr
++ && ( (unlock_addrs[uaddr].addr1 & mask) != cfi->addr_unlock1 ||
++ (unlock_addrs[uaddr].addr2 & mask) != cfi->addr_unlock2 ) ) {
++ DEBUG( MTD_DEBUG_LEVEL3,
++ "MTD %s(): 0x%.4x 0x%.4x did not match\n",
++ __func__,
++ unlock_addrs[uaddr].addr1 & mask,
++ unlock_addrs[uaddr].addr2 & mask);
++ goto match_done;
+ }
++
++ /*
++ * Make sure the ID's dissappear when the device is taken out of
++ * ID mode. The only time this should fail when it should succeed
++ * is when the ID's are written as data to the same
++ * addresses. For this rare and unfortunate case the chip
++ * cannot be probed correctly.
++ * FIXME - write a driver that takes all of the chip info as
++ * module parameters, doesn't probe but forces a load.
++ */
++ DEBUG( MTD_DEBUG_LEVEL3,
++ "MTD %s(): check ID's disappear when not in ID mode\n",
++ __func__ );
++ jedec_reset( base, map, cfi );
++ mfr = jedec_read_mfr( map, base, cfi );
++ id = jedec_read_id( map, base, cfi );
++ if ( mfr == cfi->mfr && id == cfi->id ) {
++ DEBUG( MTD_DEBUG_LEVEL3,
++ "MTD %s(): ID 0x%.2x:0x%.2x did not change after reset:\n"
++ "You might need to manually specify JEDEC parameters.\n",
++ __func__, cfi->mfr, cfi->id );
++ goto match_done;
++ }
++
++ /* all tests passed - mark as success */
++ rc = 1;
++
++ /*
++ * Put the device back in ID mode - only need to do this if we
++ * were truly frobbing a real device.
++ */
++ DEBUG( MTD_DEBUG_LEVEL3, "MTD %s(): return to ID mode\n", __func__ );
++ if(cfi->addr_unlock1) {
++ cfi_send_gen_cmd(0xaa, cfi->addr_unlock1, base, map, cfi, CFI_DEVICETYPE_X8, NULL);
++ cfi_send_gen_cmd(0x55, cfi->addr_unlock2, base, map, cfi, CFI_DEVICETYPE_X8, NULL);
+ }
++ cfi_send_gen_cmd(0x90, cfi->addr_unlock1, base, map, cfi, CFI_DEVICETYPE_X8, NULL);
++ /* FIXME - should have a delay before continuing */
++
++ match_done:
++ return rc;
++}
++
++
++static int jedec_probe_chip(struct map_info *map, __u32 base,
++ unsigned long *chip_map, struct cfi_private *cfi)
++{
++ int i;
++ enum uaddr uaddr_idx = MTD_UADDR_NOT_SUPPORTED;
+
+ retry:
++ if (!cfi->numchips) {
++ unsigned long mask = ~(cfi->device_type-1);
++
++ uaddr_idx++;
++
++ if (MTD_UADDR_UNNECESSARY == uaddr_idx)
++ return 0;
++
++ /* Mask out address bits which are smaller than the device type */
++ cfi->addr_unlock1 = unlock_addrs[uaddr_idx].addr1 & mask;
++ cfi->addr_unlock2 = unlock_addrs[uaddr_idx].addr2 & mask;
++ }
++
+ /* Make certain we aren't probing past the end of map */
+ if (base >= map->size) {
+ printk(KERN_NOTICE
+@@ -1038,6 +1744,7 @@
+ cfi_send_gen_cmd(0x55, cfi->addr_unlock2, base, map, cfi, CFI_DEVICETYPE_X8, NULL);
+ }
+ cfi_send_gen_cmd(0x90, cfi->addr_unlock1, base, map, cfi, CFI_DEVICETYPE_X8, NULL);
++ /* FIXME - should have a delay before continuing */
+
+ if (!cfi->numchips) {
+ /* This is the first time we're called. Set up the CFI
+@@ -1045,26 +1752,21 @@
+
+ cfi->mfr = jedec_read_mfr(map, base, cfi);
+ cfi->id = jedec_read_id(map, base, cfi);
+- printk(KERN_INFO "Search for id:(%02x %02x) interleave(%d) type(%d)\n",
++ DEBUG(MTD_DEBUG_LEVEL3,
++ "Search for id:(%02x %02x) interleave(%d) type(%d)\n",
+ cfi->mfr, cfi->id, cfi->interleave, cfi->device_type);
+ for (i=0; i<sizeof(jedec_table)/sizeof(jedec_table[0]); i++) {
+- if (cfi->mfr == jedec_table[i].mfr_id &&
+- cfi->id == jedec_table[i].dev_id) {
++ if ( jedec_match( base, map, cfi, &jedec_table[i] ) ) {
++ DEBUG( MTD_DEBUG_LEVEL3,
++ "MTD %s(): matched device 0x%x,0x%x unlock_addrs: 0x%.4x 0x%.4x\n",
++ __func__, cfi->mfr, cfi->id,
++ cfi->addr_unlock1, cfi->addr_unlock2 );
+ if (!cfi_jedec_setup(cfi, i))
+ return 0;
+ goto ok_out;
+ }
+ }
+- switch(unlockpass++) {
+- case 0:
+- cfi->addr_unlock1 |= cfi->addr_unlock1 << 4;
+- cfi->addr_unlock2 |= cfi->addr_unlock2 << 4;
+- goto retry;
+- case 1:
+- cfi->addr_unlock1 = cfi->addr_unlock2 = 0;
+ goto retry;
+- }
+- return 0;
+ } else {
+ __u16 mfr;
+ __u16 id;
+@@ -1081,21 +1783,24 @@
+ }
+ }
+
+- /* Check each previous chip to see if it's an alias */
+- for (i=0; i<cfi->numchips; i++) {
+- /* This chip should be in read mode if it's one
+- we've already touched. */
+- if (jedec_read_mfr(map, chips[i].start, cfi) == cfi->mfr &&
+- jedec_read_id(map, chips[i].start, cfi) == cfi->id) {
++ /* Check each previous chip locations to see if it's an alias */
++ for (i=0; i < (base >> cfi->chipshift); i++) {
++ unsigned long start;
++ if(!test_bit(i, chip_map)) {
++ continue; /* Skip location; no valid chip at this address */
++ }
++ start = i << cfi->chipshift;
++ if (jedec_read_mfr(map, start, cfi) == cfi->mfr &&
++ jedec_read_id(map, start, cfi) == cfi->id) {
+ /* Eep. This chip also looks like it's in autoselect mode.
+ Is it an alias for the new one? */
+- jedec_reset(chips[i].start, map, cfi);
++ jedec_reset(start, map, cfi);
+
+ /* If the device IDs go away, it's an alias */
+ if (jedec_read_mfr(map, base, cfi) != cfi->mfr ||
+ jedec_read_id(map, base, cfi) != cfi->id) {
+ printk(KERN_DEBUG "%s: Found an alias at 0x%x for the chip at 0x%lx\n",
+- map->name, base, chips[i].start);
++ map->name, base, start);
+ return 0;
+ }
+
+@@ -1107,7 +1812,7 @@
+ if (jedec_read_mfr(map, base, cfi) == cfi->mfr &&
+ jedec_read_id(map, base, cfi) == cfi->id) {
+ printk(KERN_DEBUG "%s: Found an alias at 0x%x for the chip at 0x%lx\n",
+- map->name, base, chips[i].start);
++ map->name, base, start);
+ return 0;
+ }
+ }
+@@ -1115,13 +1820,7 @@
+
+ /* OK, if we got to here, then none of the previous chips appear to
+ be aliases for the current one. */
+- if (cfi->numchips == MAX_CFI_CHIPS) {
+- printk(KERN_WARNING"%s: Too many flash chips detected. Increase MAX_CFI_CHIPS from %d.\n", map->name, MAX_CFI_CHIPS);
+- /* Doesn't matter about resetting it to Read Mode - we're not going to talk to it anyway */
+- return -1;
+- }
+- chips[cfi->numchips].start = base;
+- chips[cfi->numchips].state = FL_READY;
++ set_bit((base >> cfi->chipshift), chip_map); /* Update chip map */
+ cfi->numchips++;
+
+ ok_out:
+@@ -1136,8 +1835,8 @@
+ }
+
+ static struct chip_probe jedec_chip_probe = {
+- name: "JEDEC",
+- probe_chip: jedec_probe_chip
++ .name = "JEDEC",
++ .probe_chip = jedec_probe_chip
+ };
+
+ struct mtd_info *jedec_probe(struct map_info *map)
+@@ -1150,9 +1849,9 @@
+ }
+
+ static struct mtd_chip_driver jedec_chipdrv = {
+- probe: jedec_probe,
+- name: "jedec_probe",
+- module: THIS_MODULE
++ .probe = jedec_probe,
++ .name = "jedec_probe",
++ .module = THIS_MODULE
+ };
+
+ int __init jedec_probe_init(void)
+diff -Nurb linux-mips-2.4.27/drivers/mtd/chips/map_absent.c linux/drivers/mtd/chips/map_absent.c
+--- linux-mips-2.4.27/drivers/mtd/chips/map_absent.c 2001-11-05 21:15:51.000000000 +0100
++++ linux/drivers/mtd/chips/map_absent.c 2004-11-19 10:25:11.776218488 +0100
+@@ -1,7 +1,7 @@
+ /*
+ * Common code to handle absent "placeholder" devices
+ * Copyright 2001 Resilience Corporation <ebrower@resilience.com>
+- * $Id: map_absent.c,v 1.2 2001/10/02 15:05:12 dwmw2 Exp $
++ * $Id: map_absent.c,v 1.4 2003/05/28 12:51:49 dwmw2 Exp $
+ *
+ * This map driver is used to allocate "placeholder" MTD
+ * devices on systems that have socketed/removable media.
+@@ -23,9 +23,10 @@
+ #include <linux/kernel.h>
+ #include <linux/errno.h>
+ #include <linux/slab.h>
+-
++#include <linux/init.h>
++#include <linux/mtd/mtd.h>
+ #include <linux/mtd/map.h>
+-
++#include <linux/mtd/compatmac.h>
+
+ static int map_absent_read (struct mtd_info *, loff_t, size_t, size_t *, u_char *);
+ static int map_absent_write (struct mtd_info *, loff_t, size_t, size_t *, const u_char *);
+@@ -36,10 +37,10 @@
+
+
+ static struct mtd_chip_driver map_absent_chipdrv = {
+- probe: map_absent_probe,
+- destroy: map_absent_destroy,
+- name: "map_absent",
+- module: THIS_MODULE
++ .probe = map_absent_probe,
++ .destroy = map_absent_destroy,
++ .name = "map_absent",
++ .module = THIS_MODULE
+ };
+
+ static struct mtd_info *map_absent_probe(struct map_info *map)
+@@ -65,7 +66,7 @@
+ mtd->flags = 0;
+ mtd->erasesize = PAGE_SIZE;
+
+- MOD_INC_USE_COUNT;
++ __module_get(THIS_MODULE);
+ return mtd;
+ }
+
+diff -Nurb linux-mips-2.4.27/drivers/mtd/chips/map_ram.c linux/drivers/mtd/chips/map_ram.c
+--- linux-mips-2.4.27/drivers/mtd/chips/map_ram.c 2001-11-05 21:15:51.000000000 +0100
++++ linux/drivers/mtd/chips/map_ram.c 2004-11-19 10:25:11.777218336 +0100
+@@ -1,7 +1,7 @@
+ /*
+ * Common code to handle map devices which are simple RAM
+ * (C) 2000 Red Hat. GPL'd.
+- * $Id: map_ram.c,v 1.14 2001/10/02 15:05:12 dwmw2 Exp $
++ * $Id: map_ram.c,v 1.17 2003/05/28 12:51:49 dwmw2 Exp $
+ */
+
+ #include <linux/module.h>
+@@ -11,8 +11,10 @@
+ #include <asm/byteorder.h>
+ #include <linux/errno.h>
+ #include <linux/slab.h>
+-
++#include <linux/init.h>
++#include <linux/mtd/mtd.h>
+ #include <linux/mtd/map.h>
++#include <linux/mtd/compatmac.h>
+
+
+ static int mapram_read (struct mtd_info *, loff_t, size_t, size_t *, u_char *);
+@@ -23,9 +25,9 @@
+
+
+ static struct mtd_chip_driver mapram_chipdrv = {
+- probe: map_ram_probe,
+- name: "map_ram",
+- module: THIS_MODULE
++ .probe = map_ram_probe,
++ .name = "map_ram",
++ .module = THIS_MODULE
+ };
+
+ static struct mtd_info *map_ram_probe(struct map_info *map)
+@@ -34,21 +36,21 @@
+
+ /* Check the first byte is RAM */
+ #if 0
+- map->write8(map, 0x55, 0);
+- if (map->read8(map, 0) != 0x55)
++ map_write8(map, 0x55, 0);
++ if (map_read8(map, 0) != 0x55)
+ return NULL;
+
+- map->write8(map, 0xAA, 0);
+- if (map->read8(map, 0) != 0xAA)
++ map_write8(map, 0xAA, 0);
++ if (map_read8(map, 0) != 0xAA)
+ return NULL;
+
+ /* Check the last byte is RAM */
+- map->write8(map, 0x55, map->size-1);
+- if (map->read8(map, map->size-1) != 0x55)
++ map_write8(map, 0x55, map->size-1);
++ if (map_read8(map, map->size-1) != 0x55)
+ return NULL;
+
+- map->write8(map, 0xAA, map->size-1);
+- if (map->read8(map, map->size-1) != 0xAA)
++ map_write8(map, 0xAA, map->size-1);
++ if (map_read8(map, map->size-1) != 0xAA)
+ return NULL;
+ #endif
+ /* OK. It seems to be RAM. */
+@@ -74,7 +76,7 @@
+ while(mtd->size & (mtd->erasesize - 1))
+ mtd->erasesize >>= 1;
+
+- MOD_INC_USE_COUNT;
++ __module_get(THIS_MODULE);
+ return mtd;
+ }
+
+@@ -83,7 +85,7 @@
+ {
+ struct map_info *map = (struct map_info *)mtd->priv;
+
+- map->copy_from(map, buf, from, len);
++ map_copy_from(map, buf, from, len);
+ *retlen = len;
+ return 0;
+ }
+@@ -92,7 +94,7 @@
+ {
+ struct map_info *map = (struct map_info *)mtd->priv;
+
+- map->copy_to(map, to, buf, len);
++ map_copy_to(map, to, buf, len);
+ *retlen = len;
+ return 0;
+ }
+@@ -105,7 +107,7 @@
+ unsigned long i;
+
+ for (i=0; i<instr->len; i++)
+- map->write8(map, 0xFF, instr->addr + i);
++ map_write8(map, 0xFF, instr->addr + i);
+
+ if (instr->callback)
+ instr->callback(instr);
+diff -Nurb linux-mips-2.4.27/drivers/mtd/chips/map_rom.c linux/drivers/mtd/chips/map_rom.c
+--- linux-mips-2.4.27/drivers/mtd/chips/map_rom.c 2001-11-05 21:15:52.000000000 +0100
++++ linux/drivers/mtd/chips/map_rom.c 2004-11-19 10:25:11.778218184 +0100
+@@ -1,7 +1,7 @@
+ /*
+ * Common code to handle map devices which are simple ROM
+ * (C) 2000 Red Hat. GPL'd.
+- * $Id: map_rom.c,v 1.17 2001/10/02 15:05:12 dwmw2 Exp $
++ * $Id: map_rom.c,v 1.20 2003/05/28 12:51:49 dwmw2 Exp $
+ */
+
+ #include <linux/version.h>
+@@ -12,8 +12,10 @@
+ #include <asm/byteorder.h>
+ #include <linux/errno.h>
+ #include <linux/slab.h>
+-
++#include <linux/init.h>
++#include <linux/mtd/mtd.h>
+ #include <linux/mtd/map.h>
++#include <linux/mtd/compatmac.h>
+
+ static int maprom_read (struct mtd_info *, loff_t, size_t, size_t *, u_char *);
+ static int maprom_write (struct mtd_info *, loff_t, size_t, size_t *, const u_char *);
+@@ -21,9 +23,9 @@
+ struct mtd_info *map_rom_probe(struct map_info *map);
+
+ static struct mtd_chip_driver maprom_chipdrv = {
+- probe: map_rom_probe,
+- name: "map_rom",
+- module: THIS_MODULE
++ .probe = map_rom_probe,
++ .name = "map_rom",
++ .module = THIS_MODULE
+ };
+
+ struct mtd_info *map_rom_probe(struct map_info *map)
+@@ -49,7 +51,7 @@
+ while(mtd->size & (mtd->erasesize - 1))
+ mtd->erasesize >>= 1;
+
+- MOD_INC_USE_COUNT;
++ __module_get(THIS_MODULE);
+ return mtd;
+ }
+
+@@ -58,7 +60,7 @@
+ {
+ struct map_info *map = (struct map_info *)mtd->priv;
+
+- map->copy_from(map, buf, from, len);
++ map_copy_from(map, buf, from, len);
+ *retlen = len;
+ return 0;
+ }
+diff -Nurb linux-mips-2.4.27/drivers/mtd/chips/sharp.c linux/drivers/mtd/chips/sharp.c
+--- linux-mips-2.4.27/drivers/mtd/chips/sharp.c 2003-02-26 01:53:49.000000000 +0100
++++ linux/drivers/mtd/chips/sharp.c 2004-11-19 10:25:11.792216056 +0100
+@@ -4,7 +4,7 @@
+ * Copyright 2000,2001 David A. Schleef <ds@schleef.org>
+ * 2000,2001 Lineo, Inc.
+ *
+- * $Id: sharp.c,v 1.8 2002/05/17 08:59:19 dwmw2 Exp $
++ * $Id: sharp.c,v 1.12 2003/05/28 15:39:52 dwmw2 Exp $
+ *
+ * Devices supported:
+ * LH28F016SCT Symmetrical block flash memory, 2Mx8
+@@ -28,6 +28,7 @@
+ #include <linux/errno.h>
+ #include <linux/interrupt.h>
+ #include <linux/mtd/map.h>
++#include <linux/mtd/mtd.h>
+ #include <linux/mtd/cfi.h>
+ #include <linux/delay.h>
+
+@@ -98,10 +99,10 @@
+ static void sharp_destroy(struct mtd_info *mtd);
+
+ static struct mtd_chip_driver sharp_chipdrv = {
+- probe: sharp_probe,
+- destroy: sharp_destroy,
+- name: "sharp",
+- module: THIS_MODULE
++ .probe = sharp_probe,
++ .destroy = sharp_destroy,
++ .name = "sharp",
++ .module = THIS_MODULE
+ };
+
+
+@@ -116,8 +117,10 @@
+ return NULL;
+
+ sharp = kmalloc(sizeof(*sharp), GFP_KERNEL);
+- if(!sharp)
++ if(!sharp) {
++ kfree(mtd);
+ return NULL;
++ }
+
+ memset(mtd, 0, sizeof(*mtd));
+
+@@ -163,12 +166,12 @@
+ u32 read0, read4;
+ int width = 4;
+
+- tmp = map->read32(map, base+0);
++ tmp = map_read32(map, base+0);
+
+- map->write32(map, CMD_READ_ID, base+0);
++ map_write32(map, CMD_READ_ID, base+0);
+
+- read0=map->read32(map, base+0);
+- read4=map->read32(map, base+4);
++ read0=map_read32(map, base+0);
++ read4=map_read32(map, base+4);
+ if(read0 == 0x89898989){
+ printk("Looks like sharp flash\n");
+ switch(read4){
+@@ -196,10 +199,10 @@
+ printk("Sort-of looks like sharp flash, 0x%08x 0x%08x\n",
+ read0,read4);
+ }
+- }else if((map->read32(map, base+0) == CMD_READ_ID)){
++ }else if((map_read32(map, base+0) == CMD_READ_ID)){
+ /* RAM, probably */
+ printk("Looks like RAM\n");
+- map->write32(map, tmp, base+0);
++ map_write32(map, tmp, base+0);
+ }else{
+ printk("Doesn't look like sharp flash, 0x%08x 0x%08x\n",
+ read0,read4);
+@@ -221,10 +224,10 @@
+
+ switch(chip->state){
+ case FL_READY:
+- map->write32(map,CMD_READ_STATUS,adr);
++ map_write32(map,CMD_READ_STATUS,adr);
+ chip->state = FL_STATUS;
+ case FL_STATUS:
+- status = map->read32(map,adr);
++ status = map_read32(map,adr);
+ //printk("status=%08x\n",status);
+
+ udelay(100);
+@@ -252,7 +255,7 @@
+ goto retry;
+ }
+
+- map->write32(map,CMD_RESET, adr);
++ map_write32(map,CMD_RESET, adr);
+
+ chip->state = FL_READY;
+
+@@ -293,7 +296,7 @@
+ if(ret<0)
+ break;
+
+- map->copy_from(map,buf,ofs,thislen);
++ map_copy_from(map,buf,ofs,thislen);
+
+ sharp_release(&sharp->chips[chipnum]);
+
+@@ -354,17 +357,17 @@
+ ret = sharp_wait(map,chip);
+
+ for(try=0;try<10;try++){
+- map->write32(map,CMD_BYTE_WRITE,adr);
++ map_write32(map,CMD_BYTE_WRITE,adr);
+ /* cpu_to_le32 -> hack to fix the writel be->le conversion */
+- map->write32(map,cpu_to_le32(datum),adr);
++ map_write32(map,cpu_to_le32(datum),adr);
+
+ chip->state = FL_WRITING;
+
+ timeo = jiffies + (HZ/2);
+
+- map->write32(map,CMD_READ_STATUS,adr);
++ map_write32(map,CMD_READ_STATUS,adr);
+ for(i=0;i<100;i++){
+- status = map->read32(map,adr);
++ status = map_read32(map,adr);
+ if((status & SR_READY)==SR_READY)
+ break;
+ }
+@@ -377,9 +380,9 @@
+
+ printk("sharp: error writing byte at addr=%08lx status=%08x\n",adr,status);
+
+- map->write32(map,CMD_CLEAR_STATUS,adr);
++ map_write32(map,CMD_CLEAR_STATUS,adr);
+ }
+- map->write32(map,CMD_RESET,adr);
++ map_write32(map,CMD_RESET,adr);
+ chip->state = FL_READY;
+
+ wake_up(&chip->wq);
+@@ -436,14 +439,14 @@
+ int status;
+ DECLARE_WAITQUEUE(wait, current);
+
+- map->write32(map,CMD_READ_STATUS,adr);
+- status = map->read32(map,adr);
++ map_write32(map,CMD_READ_STATUS,adr);
++ status = map_read32(map,adr);
+
+ timeo = jiffies + HZ;
+
+ while(time_before(jiffies, timeo)){
+- map->write32(map,CMD_READ_STATUS,adr);
+- status = map->read32(map,adr);
++ map_write32(map,CMD_READ_STATUS,adr);
++ status = map_read32(map,adr);
+ if((status & SR_READY)==SR_READY){
+ ret = 0;
+ goto out;
+@@ -485,26 +488,26 @@
+ sharp_unlock_oneblock(map,chip,adr);
+ #endif
+
+- map->write32(map,CMD_BLOCK_ERASE_1,adr);
+- map->write32(map,CMD_BLOCK_ERASE_2,adr);
++ map_write32(map,CMD_BLOCK_ERASE_1,adr);
++ map_write32(map,CMD_BLOCK_ERASE_2,adr);
+
+ chip->state = FL_ERASING;
+
+ ret = sharp_do_wait_for_ready(map,chip,adr);
+ if(ret<0)return ret;
+
+- map->write32(map,CMD_READ_STATUS,adr);
+- status = map->read32(map,adr);
++ map_write32(map,CMD_READ_STATUS,adr);
++ status = map_read32(map,adr);
+
+ if(!(status&SR_ERRORS)){
+- map->write32(map,CMD_RESET,adr);
++ map_write32(map,CMD_RESET,adr);
+ chip->state = FL_READY;
+ //spin_unlock_bh(chip->mutex);
+ return 0;
+ }
+
+ printk("sharp: error erasing block at addr=%08lx status=%08x\n",adr,status);
+- map->write32(map,CMD_CLEAR_STATUS,adr);
++ map_write32(map,CMD_CLEAR_STATUS,adr);
+
+ //spin_unlock_bh(chip->mutex);
+
+@@ -518,17 +521,17 @@
+ int i;
+ int status;
+
+- map->write32(map,CMD_CLEAR_BLOCK_LOCKS_1,adr);
+- map->write32(map,CMD_CLEAR_BLOCK_LOCKS_2,adr);
++ map_write32(map,CMD_CLEAR_BLOCK_LOCKS_1,adr);
++ map_write32(map,CMD_CLEAR_BLOCK_LOCKS_2,adr);
+
+ udelay(100);
+
+- status = map->read32(map,adr);
++ status = map_read32(map,adr);
+ printk("status=%08x\n",status);
+
+ for(i=0;i<1000;i++){
+- //map->write32(map,CMD_READ_STATUS,adr);
+- status = map->read32(map,adr);
++ //map_write32(map,CMD_READ_STATUS,adr);
++ status = map_read32(map,adr);
+ if((status & SR_READY)==SR_READY)
+ break;
+ udelay(100);
+@@ -538,13 +541,13 @@
+ }
+
+ if(!(status&SR_ERRORS)){
+- map->write32(map,CMD_RESET,adr);
++ map_write32(map,CMD_RESET,adr);
+ chip->state = FL_READY;
+ return;
+ }
+
+ printk("sharp: error unlocking block at addr=%08lx status=%08x\n",adr,status);
+- map->write32(map,CMD_CLEAR_STATUS,adr);
++ map_write32(map,CMD_CLEAR_STATUS,adr);
+ }
+ #endif
+
+diff -Nurb linux-mips-2.4.27/drivers/mtd/cmdlinepart.c linux/drivers/mtd/cmdlinepart.c
+--- linux-mips-2.4.27/drivers/mtd/cmdlinepart.c 2003-02-26 01:53:49.000000000 +0100
++++ linux/drivers/mtd/cmdlinepart.c 2004-11-19 10:25:11.628240984 +0100
+@@ -1,5 +1,5 @@
+ /*
+- * $Id: cmdlinepart.c,v 1.6 2002/11/16 01:37:39 dneuer Exp $
++ * $Id: cmdlinepart.c,v 1.11 2003/10/23 08:32:45 dwmw2 Exp $
+ *
+ * Read flash partition table from command line
+ *
+@@ -28,7 +28,7 @@
+
+ #include <linux/mtd/mtd.h>
+ #include <linux/mtd/partitions.h>
+-#include <asm/setup.h>
++#include <linux/mtd/compatmac.h>
+ #include <linux/bootmem.h>
+
+ /* error message prefix */
+@@ -178,8 +178,7 @@
+ parts[this_part].mask_flags = mask_flags;
+ if (name)
+ {
+- strncpy(extra_mem, name, name_len);
+- extra_mem[name_len] = 0;
++ strlcpy(extra_mem, name, name_len + 1);
+ }
+ else
+ {
+@@ -258,8 +257,7 @@
+ this_mtd->parts = parts;
+ this_mtd->num_parts = num_parts;
+ this_mtd->mtd_id = (char*)(this_mtd + 1);
+- strncpy(this_mtd->mtd_id, mtd_id, mtd_id_len);
+- this_mtd->mtd_id[mtd_id_len] = 0;
++ strlcpy(this_mtd->mtd_id, mtd_id, mtd_id_len + 1);
+
+ /* link into chain */
+ this_mtd->next = partitions;
+@@ -291,13 +289,14 @@
+ * information. It returns partitions for the requested mtd device, or
+ * the first one in the chain if a NULL mtd_id is passed in.
+ */
+-int parse_cmdline_partitions(struct mtd_info *master,
++static int parse_cmdline_partitions(struct mtd_info *master,
+ struct mtd_partition **pparts,
+- const char *mtd_id)
++ unsigned long origin)
+ {
+ unsigned long offset;
+ int i;
+ struct cmdline_mtd_partition *part;
++ char *mtd_id = master->name;
+
+ if(!cmdline)
+ return -EINVAL;
+@@ -349,7 +348,25 @@
+
+ __setup("mtdparts=", mtdpart_setup);
+
+-EXPORT_SYMBOL(parse_cmdline_partitions);
++static struct mtd_part_parser cmdline_parser = {
++ .owner = THIS_MODULE,
++ .parse_fn = parse_cmdline_partitions,
++ .name = "cmdlinepart",
++};
++
++static int __init cmdline_parser_init(void)
++{
++ return register_mtd_parser(&cmdline_parser);
++}
++
++static void __exit cmdline_parser_exit(void)
++{
++ deregister_mtd_parser(&cmdline_parser);
++}
++
++module_init(cmdline_parser_init);
++module_exit(cmdline_parser_exit);
++
+
+ MODULE_LICENSE("GPL");
+ MODULE_AUTHOR("Marius Groeger <mag@sysgo.de>");
+diff -Nurb linux-mips-2.4.27/drivers/mtd/devices/Config.in linux/drivers/mtd/devices/Config.in
+--- linux-mips-2.4.27/drivers/mtd/devices/Config.in 2003-02-26 01:53:49.000000000 +0100
++++ linux/drivers/mtd/devices/Config.in 2004-11-19 10:25:11.811213168 +0100
+@@ -1,6 +1,6 @@
+-# drivers/mtd/maps/Config.in
++# drivers/mtd/devices/Config.in
+
+-# $Id: Config.in,v 1.8 2003/01/24 23:25:14 dwmw2 Exp $
++# $Id: Config.in,v 1.11 2003/05/28 10:54:23 dwmw2 Exp $
+
+ mainmenu_option next_comment
+
+@@ -28,13 +28,13 @@
+ dep_tristate ' MTD emulation using block device' CONFIG_MTD_BLKMTD $CONFIG_MTD
+
+ comment 'Disk-On-Chip Device Drivers'
+- dep_tristate ' M-Systems Disk-On-Chip 1000' CONFIG_MTD_DOC1000 $CONFIG_MTD
+ dep_tristate ' M-Systems Disk-On-Chip 2000 and Millennium' CONFIG_MTD_DOC2000 $CONFIG_MTD
+ dep_tristate ' M-Systems Disk-On-Chip Millennium-only alternative driver (see help)' CONFIG_MTD_DOC2001 $CONFIG_MTD
+- if [ "$CONFIG_MTD_DOC2001" = "y" -o "$CONFIG_MTD_DOC2000" = "y" ]; then
++ dep_tristate ' M-Systems Disk-On-Chip Millennium Plus driver (see help)' CONFIG_MTD_DOC2001PLUS $CONFIG_MTD
++ if [ "$CONFIG_MTD_DOC2001PLUS" = "y" -o "$CONFIG_MTD_DOC2001" = "y" -o "$CONFIG_MTD_DOC2000" = "y" ]; then
+ define_bool CONFIG_MTD_DOCPROBE y
+ else
+- if [ "$CONFIG_MTD_DOC2001" = "m" -o "$CONFIG_MTD_DOC2000" = "m" ]; then
++ if [ "$CONFIG_MTD_DOC2001PLUS" = "m" -o "$CONFIG_MTD_DOC2001" = "m" -o "$CONFIG_MTD_DOC2000" = "m" ]; then
+ define_bool CONFIG_MTD_DOCPROBE m
+ else
+ define_bool CONFIG_MTD_DOCPROBE n
+diff -Nurb linux-mips-2.4.27/drivers/mtd/devices/Makefile linux/drivers/mtd/devices/Makefile
+--- linux-mips-2.4.27/drivers/mtd/devices/Makefile 2002-03-30 09:15:50.000000000 +0100
++++ linux/drivers/mtd/devices/Makefile 2004-11-19 10:25:11.813212864 +0100
+@@ -1,9 +1,12 @@
+ #
+ # linux/drivers/devices/Makefile
+ #
+-# $Id: Makefile,v 1.4 2001/06/26 21:10:05 spse Exp $
++# $Id: Makefile.common,v 1.4 2003/08/21 17:52:29 joern Exp $
+
++ifeq ($(PATCHLEVEL),4)
+ O_TARGET := devlink.o
++export-objs := docecc.o
++endif
+
+ # *** BIG UGLY NOTE ***
+ #
+@@ -12,15 +15,16 @@
+ # here where previously there was none. We now have to ensure that
+ # doc200[01].o are linked before docprobe.o
+
+-obj-$(CONFIG_MTD_DOC1000) += doc1000.o
+ obj-$(CONFIG_MTD_DOC2000) += doc2000.o
+ obj-$(CONFIG_MTD_DOC2001) += doc2001.o
++obj-$(CONFIG_MTD_DOC2001PLUS) += doc2001plus.o
+ obj-$(CONFIG_MTD_DOCPROBE) += docprobe.o docecc.o
+ obj-$(CONFIG_MTD_SLRAM) += slram.o
++obj-$(CONFIG_MTD_PHRAM) += phram.o
+ obj-$(CONFIG_MTD_PMC551) += pmc551.o
+ obj-$(CONFIG_MTD_MS02NV) += ms02-nv.o
+ obj-$(CONFIG_MTD_MTDRAM) += mtdram.o
+ obj-$(CONFIG_MTD_LART) += lart.o
+ obj-$(CONFIG_MTD_BLKMTD) += blkmtd.o
+
+-include $(TOPDIR)/Rules.make
++-include $(TOPDIR)/Rules.make
+diff -Nurb linux-mips-2.4.27/drivers/mtd/devices/blkmtd-25.c linux/drivers/mtd/devices/blkmtd-25.c
+--- linux-mips-2.4.27/drivers/mtd/devices/blkmtd-25.c 1970-01-01 01:00:00.000000000 +0100
++++ linux/drivers/mtd/devices/blkmtd-25.c 2004-11-19 10:25:11.814212712 +0100
+@@ -0,0 +1,827 @@
++/*
++ * $Id: blkmtd-25.c,v 1.5 2003/07/16 06:48:27 spse Exp $
++ *
++ * blkmtd.c - use a block device as a fake MTD
++ *
++ * Author: Simon Evans <spse@secret.org.uk>
++ *
++ * Copyright (C) 2001,2002 Simon Evans
++ *
++ * Licence: GPL
++ *
++ * How it works:
++ * The driver uses raw/io to read/write the device and the page
++ * cache to cache access. Writes update the page cache with the
++ * new data and mark it dirty and add the page into a BIO which
++ * is then written out.
++ *
++ * It can be loaded Read-Only to prevent erases and writes to the
++ * medium.
++ *
++ */
++
++#include <linux/config.h>
++#include <linux/module.h>
++#include <linux/fs.h>
++#include <linux/blkdev.h>
++#include <linux/bio.h>
++#include <linux/pagemap.h>
++#include <linux/list.h>
++#include <linux/init.h>
++#include <linux/mtd/mtd.h>
++
++
++#define err(format, arg...) printk(KERN_ERR "blkmtd: " format "\n" , ## arg)
++#define info(format, arg...) printk(KERN_INFO "blkmtd: " format "\n" , ## arg)
++#define warn(format, arg...) printk(KERN_WARNING "blkmtd: " format "\n" , ## arg)
++#define crit(format, arg...) printk(KERN_CRIT "blkmtd: " format "\n" , ## arg)
++
++
++/* Default erase size in K, always make it a multiple of PAGE_SIZE */
++#define CONFIG_MTD_BLKDEV_ERASESIZE (128 << 10) /* 128KiB */
++#define VERSION "$Revision: 1.5 $"
++
++/* Info for the block device */
++struct blkmtd_dev {
++ struct list_head list;
++ struct block_device *blkdev;
++ struct mtd_info mtd_info;
++ struct semaphore wrbuf_mutex;
++};
++
++
++/* Static info about the MTD, used in cleanup_module */
++static LIST_HEAD(blkmtd_device_list);
++
++
++static void blkmtd_sync(struct mtd_info *mtd);
++
++#define MAX_DEVICES 4
++
++/* Module parameters passed by insmod/modprobe */
++char *device[MAX_DEVICES]; /* the block device to use */
++int erasesz[MAX_DEVICES]; /* optional default erase size */
++int ro[MAX_DEVICES]; /* optional read only flag */
++int sync;
++
++
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("Simon Evans <spse@secret.org.uk>");
++MODULE_DESCRIPTION("Emulate an MTD using a block device");
++MODULE_PARM(device, "1-4s");
++MODULE_PARM_DESC(device, "block device to use");
++MODULE_PARM(erasesz, "1-4i");
++MODULE_PARM_DESC(erasesz, "optional erase size to use in KiB. eg 4=4KiB.");
++MODULE_PARM(ro, "1-4i");
++MODULE_PARM_DESC(ro, "1=Read only, writes and erases cause errors");
++MODULE_PARM(sync, "i");
++MODULE_PARM_DESC(sync, "1=Synchronous writes");
++
++
++/* completion handler for BIO reads */
++static int bi_read_complete(struct bio *bio, unsigned int bytes_done, int error)
++{
++ if (bio->bi_size)
++ return 1;
++
++ complete((struct completion*)bio->bi_private);
++ return 0;
++}
++
++
++/* completion handler for BIO writes */
++static int bi_write_complete(struct bio *bio, unsigned int bytes_done, int error)
++{
++ const int uptodate = test_bit(BIO_UPTODATE, &bio->bi_flags);
++ struct bio_vec *bvec = bio->bi_io_vec + bio->bi_vcnt - 1;
++
++ if (bio->bi_size)
++ return 1;
++
++ if(!uptodate)
++ err("bi_write_complete: not uptodate\n");
++
++ do {
++ struct page *page = bvec->bv_page;
++ DEBUG(3, "Cleaning up page %ld\n", page->index);
++ if (--bvec >= bio->bi_io_vec)
++ prefetchw(&bvec->bv_page->flags);
++
++ if (uptodate) {
++ SetPageUptodate(page);
++ } else {
++ ClearPageUptodate(page);
++ SetPageError(page);
++ }
++ ClearPageDirty(page);
++ unlock_page(page);
++ page_cache_release(page);
++ } while (bvec >= bio->bi_io_vec);
++
++ complete((struct completion*)bio->bi_private);
++ return 0;
++}
++
++
++/* read one page from the block device */
++static int blkmtd_readpage(struct blkmtd_dev *dev, struct page *page)
++{
++ struct bio *bio;
++ struct completion event;
++ int err = -ENOMEM;
++
++ if(PageUptodate(page)) {
++ DEBUG(2, "blkmtd: readpage page %ld is already upto date\n", page->index);
++ unlock_page(page);
++ return 0;
++ }
++
++ ClearPageUptodate(page);
++ ClearPageError(page);
++
++ bio = bio_alloc(GFP_KERNEL, 1);
++ if(bio) {
++ init_completion(&event);
++ bio->bi_bdev = dev->blkdev;
++ bio->bi_sector = page->index << (PAGE_SHIFT-9);
++ bio->bi_private = &event;
++ bio->bi_end_io = bi_read_complete;
++ if(bio_add_page(bio, page, PAGE_SIZE, 0) == PAGE_SIZE) {
++ submit_bio(READ, bio);
++ blk_run_queues();
++ wait_for_completion(&event);
++ err = test_bit(BIO_UPTODATE, &bio->bi_flags) ? 0 : -EIO;
++ bio_put(bio);
++ }
++ }
++
++ if(err)
++ SetPageError(page);
++ else
++ SetPageUptodate(page);
++ flush_dcache_page(page);
++ unlock_page(page);
++ return err;
++}
++
++
++/* write out the current BIO and wait for it to finish */
++static int blkmtd_write_out(struct bio *bio)
++{
++ struct completion event;
++ int err;
++
++ if(!bio->bi_vcnt) {
++ bio_put(bio);
++ return 0;
++ }
++
++ init_completion(&event);
++ bio->bi_private = &event;
++ bio->bi_end_io = bi_write_complete;
++ submit_bio(WRITE, bio);
++ blk_run_queues();
++ wait_for_completion(&event);
++ DEBUG(3, "submit_bio completed, bi_vcnt = %d\n", bio->bi_vcnt);
++ err = test_bit(BIO_UPTODATE, &bio->bi_flags) ? 0 : -EIO;
++ bio_put(bio);
++ return err;
++}
++
++
++/**
++ * blkmtd_add_page - add a page to the current BIO
++ * @bio: bio to add to (NULL to alloc initial bio)
++ * @blkdev: block device
++ * @page: page to add
++ * @pagecnt: pages left to add
++ *
++ * Adds a page to the current bio, allocating it if necessary. If it cannot be
++ * added, the current bio is written out and a new one is allocated. Returns
++ * the new bio to add or NULL on error
++ */
++static struct bio *blkmtd_add_page(struct bio *bio, struct block_device *blkdev,
++ struct page *page, int pagecnt)
++{
++
++ retry:
++ if(!bio) {
++ bio = bio_alloc(GFP_KERNEL, pagecnt);
++ if(!bio)
++ return NULL;
++ bio->bi_sector = page->index << (PAGE_SHIFT-9);
++ bio->bi_bdev = blkdev;
++ }
++
++ if(bio_add_page(bio, page, PAGE_SIZE, 0) != PAGE_SIZE) {
++ blkmtd_write_out(bio);
++ bio = NULL;
++ goto retry;
++ }
++ return bio;
++}
++
++
++/**
++ * write_pages - write block of data to device via the page cache
++ * @dev: device to write to
++ * @buf: data source or NULL if erase (output is set to 0xff)
++ * @to: offset into output device
++ * @len: amount to data to write
++ * @retlen: amount of data written
++ *
++ * Grab pages from the page cache and fill them with the source data.
++ * Non page aligned start and end result in a readin of the page and
++ * part of the page being modified. Pages are added to the bio and then written
++ * out.
++ */
++static int write_pages(struct blkmtd_dev *dev, const u_char *buf, loff_t to,
++ size_t len, size_t *retlen)
++{
++ int pagenr, offset;
++ size_t start_len = 0, end_len;
++ int pagecnt = 0;
++ int err = 0;
++ struct bio *bio = NULL;
++ size_t thislen = 0;
++
++ pagenr = to >> PAGE_SHIFT;
++ offset = to & ~PAGE_MASK;
++
++ DEBUG(2, "blkmtd: write_pages: buf = %p to = %ld len = %d pagenr = %d offset = %d\n",
++ buf, (long)to, len, pagenr, offset);
++
++ /* see if we have to do a partial write at the start */
++ if(offset) {
++ start_len = ((offset + len) > PAGE_SIZE) ? PAGE_SIZE - offset : len;
++ len -= start_len;
++ }
++
++ /* calculate the length of the other two regions */
++ end_len = len & ~PAGE_MASK;
++ len -= end_len;
++
++ if(start_len)
++ pagecnt++;
++
++ if(len)
++ pagecnt += len >> PAGE_SHIFT;
++
++ if(end_len)
++ pagecnt++;
++
++ down(&dev->wrbuf_mutex);
++
++ DEBUG(3, "blkmtd: write: start_len = %d len = %d end_len = %d pagecnt = %d\n",
++ start_len, len, end_len, pagecnt);
++
++ if(start_len) {
++ /* do partial start region */
++ struct page *page;
++
++ DEBUG(3, "blkmtd: write: doing partial start, page = %d len = %d offset = %d\n",
++ pagenr, start_len, offset);
++
++ BUG_ON(!buf);
++ page = read_cache_page(dev->blkdev->bd_inode->i_mapping, pagenr, (filler_t *)blkmtd_readpage, dev);
++ lock_page(page);
++ if(PageDirty(page)) {
++ err("to = %lld start_len = %d len = %d end_len = %d pagenr = %d\n",
++ to, start_len, len, end_len, pagenr);
++ BUG();
++ }
++ memcpy(page_address(page)+offset, buf, start_len);
++ SetPageDirty(page);
++ SetPageUptodate(page);
++ buf += start_len;
++ thislen = start_len;
++ bio = blkmtd_add_page(bio, dev->blkdev, page, pagecnt);
++ if(!bio) {
++ err = -ENOMEM;
++ err("bio_add_page failed\n");
++ goto write_err;
++ }
++ pagecnt--;
++ pagenr++;
++ }
++
++ /* Now do the main loop to a page aligned, n page sized output */
++ if(len) {
++ int pagesc = len >> PAGE_SHIFT;
++ DEBUG(3, "blkmtd: write: whole pages start = %d, count = %d\n",
++ pagenr, pagesc);
++ while(pagesc) {
++ struct page *page;
++
++ /* see if page is in the page cache */
++ DEBUG(3, "blkmtd: write: grabbing page %d from page cache\n", pagenr);
++ page = grab_cache_page(dev->blkdev->bd_inode->i_mapping, pagenr);
++ if(PageDirty(page)) {
++ BUG();
++ }
++ if(!page) {
++ warn("write: cannot grab cache page %d", pagenr);
++ err = -ENOMEM;
++ goto write_err;
++ }
++ if(!buf) {
++ memset(page_address(page), 0xff, PAGE_SIZE);
++ } else {
++ memcpy(page_address(page), buf, PAGE_SIZE);
++ buf += PAGE_SIZE;
++ }
++ bio = blkmtd_add_page(bio, dev->blkdev, page, pagecnt);
++ if(!bio) {
++ err = -ENOMEM;
++ err("bio_add_page failed\n");
++ goto write_err;
++ }
++ pagenr++;
++ pagecnt--;
++ SetPageDirty(page);
++ SetPageUptodate(page);
++ pagesc--;
++ thislen += PAGE_SIZE;
++ }
++ }
++
++ if(end_len) {
++ /* do the third region */
++ struct page *page;
++ DEBUG(3, "blkmtd: write: doing partial end, page = %d len = %d\n",
++ pagenr, end_len);
++ BUG_ON(!buf);
++ page = read_cache_page(dev->blkdev->bd_inode->i_mapping, pagenr, (filler_t *)blkmtd_readpage, dev);
++ lock_page(page);
++ if(PageDirty(page)) {
++ err("to = %lld start_len = %d len = %d end_len = %d pagenr = %d\n",
++ to, start_len, len, end_len, pagenr);
++ BUG();
++ }
++ memcpy(page_address(page), buf, end_len);
++ SetPageDirty(page);
++ SetPageUptodate(page);
++ DEBUG(3, "blkmtd: write: writing out partial end\n");
++ thislen += end_len;
++ bio = blkmtd_add_page(bio, dev->blkdev, page, pagecnt);
++ if(!bio) {
++ err = -ENOMEM;
++ err("bio_add_page failed\n");
++ goto write_err;
++ }
++ pagenr++;
++ }
++
++ DEBUG(3, "blkmtd: write: got %d vectors to write\n", bio->bi_vcnt);
++ write_err:
++ if(bio)
++ blkmtd_write_out(bio);
++
++ DEBUG(2, "blkmtd: write: end, retlen = %d, err = %d\n", *retlen, err);
++ up(&dev->wrbuf_mutex);
++
++ if(retlen)
++ *retlen = thislen;
++ return err;
++}
++
++
++/* erase a specified part of the device */
++static int blkmtd_erase(struct mtd_info *mtd, struct erase_info *instr)
++{
++ struct blkmtd_dev *dev = mtd->priv;
++ struct mtd_erase_region_info *einfo = mtd->eraseregions;
++ int numregions = mtd->numeraseregions;
++ size_t from;
++ u_long len;
++ int err = -EIO;
++ int retlen;
++
++ instr->state = MTD_ERASING;
++ from = instr->addr;
++ len = instr->len;
++
++ /* check erase region has valid start and length */
++ DEBUG(2, "blkmtd: erase: dev = `%s' from = 0x%x len = 0x%lx\n",
++ mtd->name+9, from, len);
++ while(numregions) {
++ DEBUG(3, "blkmtd: checking erase region = 0x%08X size = 0x%X num = 0x%x\n",
++ einfo->offset, einfo->erasesize, einfo->numblocks);
++ if(from >= einfo->offset
++ && from < einfo->offset + (einfo->erasesize * einfo->numblocks)) {
++ if(len == einfo->erasesize
++ && ( (from - einfo->offset) % einfo->erasesize == 0))
++ break;
++ }
++ numregions--;
++ einfo++;
++ }
++
++ if(!numregions) {
++ /* Not a valid erase block */
++ err("erase: invalid erase request 0x%lX @ 0x%08X", len, from);
++ instr->state = MTD_ERASE_FAILED;
++ err = -EIO;
++ }
++
++ if(instr->state != MTD_ERASE_FAILED) {
++ /* do the erase */
++ DEBUG(3, "Doing erase from = %d len = %ld\n", from, len);
++ err = write_pages(dev, NULL, from, len, &retlen);
++ if(err || retlen != len) {
++ err("erase failed err = %d", err);
++ instr->state = MTD_ERASE_FAILED;
++ } else {
++ instr->state = MTD_ERASE_DONE;
++ }
++ }
++
++ DEBUG(3, "blkmtd: erase: checking callback\n");
++ if (instr->callback) {
++ (*(instr->callback))(instr);
++ }
++ DEBUG(2, "blkmtd: erase: finished (err = %d)\n", err);
++ return err;
++}
++
++
++/* read a range of the data via the page cache */
++static int blkmtd_read(struct mtd_info *mtd, loff_t from, size_t len,
++ size_t *retlen, u_char *buf)
++{
++ struct blkmtd_dev *dev = mtd->priv;
++ int err = 0;
++ int offset;
++ int pagenr, pages;
++ size_t thislen = 0;
++
++ DEBUG(2, "blkmtd: read: dev = `%s' from = %ld len = %d buf = %p\n",
++ mtd->name+9, (long int)from, len, buf);
++
++ if(from > mtd->size)
++ return -EINVAL;
++ if(from + len > mtd->size)
++ len = mtd->size - from;
++
++ pagenr = from >> PAGE_SHIFT;
++ offset = from - (pagenr << PAGE_SHIFT);
++
++ pages = (offset+len+PAGE_SIZE-1) >> PAGE_SHIFT;
++ DEBUG(3, "blkmtd: read: pagenr = %d offset = %d, pages = %d\n",
++ pagenr, offset, pages);
++
++ while(pages) {
++ struct page *page;
++ int cpylen;
++
++ DEBUG(3, "blkmtd: read: looking for page: %d\n", pagenr);
++ page = read_cache_page(dev->blkdev->bd_inode->i_mapping, pagenr, (filler_t *)blkmtd_readpage, dev);
++ if(IS_ERR(page)) {
++ err = -EIO;
++ goto readerr;
++ }
++
++ cpylen = (PAGE_SIZE > len) ? len : PAGE_SIZE;
++ if(offset+cpylen > PAGE_SIZE)
++ cpylen = PAGE_SIZE-offset;
++
++ memcpy(buf + thislen, page_address(page) + offset, cpylen);
++ offset = 0;
++ len -= cpylen;
++ thislen += cpylen;
++ pagenr++;
++ pages--;
++ if(!PageDirty(page))
++ page_cache_release(page);
++ }
++
++ readerr:
++ if(retlen)
++ *retlen = thislen;
++ DEBUG(2, "blkmtd: end read: retlen = %d, err = %d\n", thislen, err);
++ return err;
++}
++
++
++/* write data to the underlying device */
++static int blkmtd_write(struct mtd_info *mtd, loff_t to, size_t len,
++ size_t *retlen, const u_char *buf)
++{
++ struct blkmtd_dev *dev = mtd->priv;
++ int err;
++
++ if(!len)
++ return 0;
++
++ DEBUG(2, "blkmtd: write: dev = `%s' to = %ld len = %d buf = %p\n",
++ mtd->name+9, (long int)to, len, buf);
++
++ if(to >= mtd->size) {
++ return -ENOSPC;
++ }
++
++ if(to + len > mtd->size) {
++ len = mtd->size - to;
++ }
++
++ err = write_pages(dev, buf, to, len, retlen);
++ if(err > 0)
++ err = 0;
++ DEBUG(2, "blkmtd: write: end, err = %d\n", err);
++ return err;
++}
++
++
++/* sync the device - wait until the write queue is empty */
++static void blkmtd_sync(struct mtd_info *mtd)
++{
++ /* Currently all writes are synchronous */
++}
++
++
++static void free_device(struct blkmtd_dev *dev)
++{
++ DEBUG(2, "blkmtd: free_device() dev = %p\n", dev);
++ if(dev) {
++ if(dev->mtd_info.eraseregions)
++ kfree(dev->mtd_info.eraseregions);
++ if(dev->mtd_info.name)
++ kfree(dev->mtd_info.name);
++
++ if(dev->blkdev) {
++ invalidate_inode_pages(dev->blkdev->bd_inode->i_mapping);
++ close_bdev_excl(dev->blkdev, BDEV_RAW);
++ }
++ kfree(dev);
++ }
++}
++
++
++/* For a given size and initial erase size, calculate the number
++ * and size of each erase region. Goes round the loop twice,
++ * once to find out how many regions, then allocates space,
++ * then round the loop again to fill it in.
++ */
++static struct mtd_erase_region_info *calc_erase_regions(
++ size_t erase_size, size_t total_size, int *regions)
++{
++ struct mtd_erase_region_info *info = NULL;
++
++ DEBUG(2, "calc_erase_regions, es = %d size = %d regions = %d\n",
++ erase_size, total_size, *regions);
++ /* Make any user specified erasesize be a power of 2
++ and at least PAGE_SIZE */
++ if(erase_size) {
++ int es = erase_size;
++ erase_size = 1;
++ while(es != 1) {
++ es >>= 1;
++ erase_size <<= 1;
++ }
++ if(erase_size < PAGE_SIZE)
++ erase_size = PAGE_SIZE;
++ } else {
++ erase_size = CONFIG_MTD_BLKDEV_ERASESIZE;
++ }
++
++ *regions = 0;
++
++ do {
++ int tot_size = total_size;
++ int er_size = erase_size;
++ int count = 0, offset = 0, regcnt = 0;
++
++ while(tot_size) {
++ count = tot_size / er_size;
++ if(count) {
++ tot_size = tot_size % er_size;
++ if(info) {
++ DEBUG(2, "adding to erase info off=%d er=%d cnt=%d\n",
++ offset, er_size, count);
++ (info+regcnt)->offset = offset;
++ (info+regcnt)->erasesize = er_size;
++ (info+regcnt)->numblocks = count;
++ (*regions)++;
++ }
++ regcnt++;
++ offset += (count * er_size);
++ }
++ while(er_size > tot_size)
++ er_size >>= 1;
++ }
++ if(info == NULL) {
++ info = kmalloc(regcnt * sizeof(struct mtd_erase_region_info), GFP_KERNEL);
++ if(!info)
++ break;
++ }
++ } while(!(*regions));
++ DEBUG(2, "calc_erase_regions done, es = %d size = %d regions = %d\n",
++ erase_size, total_size, *regions);
++ return info;
++}
++
++
++extern dev_t __init name_to_dev_t(const char *line);
++
++static struct blkmtd_dev *add_device(char *devname, int readonly, int erase_size)
++{
++ struct block_device *bdev;
++ int mode;
++ struct blkmtd_dev *dev;
++
++ if(!devname)
++ return NULL;
++
++ /* Get a handle on the device */
++
++
++#ifdef MODULE
++ mode = (readonly) ? O_RDONLY : O_RDWR;
++ bdev = open_bdev_excl(devname, mode, BDEV_RAW, NULL);
++#else
++ mode = (readonly) ? FMODE_READ : FMODE_WRITE;
++ bdev = open_by_devnum(name_to_dev_t(devname), mode, BDEV_RAW);
++#endif
++ if(IS_ERR(bdev)) {
++ err("error: cannot open device %s", devname);
++ DEBUG(2, "blkmtd: opening bdev returned %ld\n", PTR_ERR(bdev));
++ return NULL;
++ }
++
++ DEBUG(1, "blkmtd: found a block device major = %d, minor = %d\n",
++ MAJOR(bdev->bd_dev), MINOR(bdev->bd_dev));
++
++ if(MAJOR(bdev->bd_dev) == MTD_BLOCK_MAJOR) {
++ err("attempting to use an MTD device as a block device");
++ blkdev_put(bdev, BDEV_RAW);
++ return NULL;
++ }
++
++ dev = kmalloc(sizeof(struct blkmtd_dev), GFP_KERNEL);
++ if(dev == NULL) {
++ blkdev_put(bdev, BDEV_RAW);
++ return NULL;
++ }
++
++ memset(dev, 0, sizeof(struct blkmtd_dev));
++ if(!readonly) {
++ init_MUTEX(&dev->wrbuf_mutex);
++ }
++
++ dev->blkdev = bdev;
++ dev->mtd_info.size = dev->blkdev->bd_inode->i_size & PAGE_MASK;
++
++ /* Setup the MTD structure */
++ /* make the name contain the block device in */
++ dev->mtd_info.name = kmalloc(sizeof("blkmtd: ") + strlen(devname), GFP_KERNEL);
++ if(dev->mtd_info.name == NULL)
++ goto devinit_err;
++
++ sprintf(dev->mtd_info.name, "blkmtd: %s", devname);
++ dev->mtd_info.eraseregions = calc_erase_regions(erase_size, dev->mtd_info.size,
++ &dev->mtd_info.numeraseregions);
++ if(dev->mtd_info.eraseregions == NULL)
++ goto devinit_err;
++
++ dev->mtd_info.erasesize = dev->mtd_info.eraseregions->erasesize;
++ DEBUG(1, "blkmtd: init: found %d erase regions\n",
++ dev->mtd_info.numeraseregions);
++
++ if(readonly) {
++ dev->mtd_info.type = MTD_ROM;
++ dev->mtd_info.flags = MTD_CAP_ROM;
++ } else {
++ dev->mtd_info.type = MTD_RAM;
++ dev->mtd_info.flags = MTD_CAP_RAM;
++ dev->mtd_info.erase = blkmtd_erase;
++ dev->mtd_info.write = blkmtd_write;
++ dev->mtd_info.writev = default_mtd_writev;
++ dev->mtd_info.sync = blkmtd_sync;
++ }
++ dev->mtd_info.read = blkmtd_read;
++ dev->mtd_info.readv = default_mtd_readv;
++ dev->mtd_info.priv = dev;
++ dev->mtd_info.owner = THIS_MODULE;
++
++ list_add(&dev->list, &blkmtd_device_list);
++ if (add_mtd_device(&dev->mtd_info)) {
++ /* Device didnt get added, so free the entry */
++ list_del(&dev->list);
++ goto devinit_err;
++ } else {
++ info("mtd%d: [%s] erase_size = %dKiB %s",
++ dev->mtd_info.index, dev->mtd_info.name + strlen("blkmtd: "),
++ dev->mtd_info.erasesize >> 10,
++ readonly ? "(read-only)" : "");
++ }
++
++ return dev;
++
++ devinit_err:
++ free_device(dev);
++ return NULL;
++}
++
++
++/* Cleanup and exit - sync the device and kill of the kernel thread */
++static void __devexit cleanup_blkmtd(void)
++{
++ struct list_head *temp1, *temp2;
++
++ /* Remove the MTD devices */
++ list_for_each_safe(temp1, temp2, &blkmtd_device_list) {
++ struct blkmtd_dev *dev = list_entry(temp1, struct blkmtd_dev,
++ list);
++ blkmtd_sync(&dev->mtd_info);
++ del_mtd_device(&dev->mtd_info);
++ info("mtd%d: [%s] removed", dev->mtd_info.index,
++ dev->mtd_info.name + strlen("blkmtd: "));
++ list_del(&dev->list);
++ free_device(dev);
++ }
++}
++
++#ifndef MODULE
++
++/* Handle kernel boot params */
++
++
++static int __init param_blkmtd_device(char *str)
++{
++ int i;
++
++ for(i = 0; i < MAX_DEVICES; i++) {
++ device[i] = str;
++ DEBUG(2, "blkmtd: device setup: %d = %s\n", i, device[i]);
++ strsep(&str, ",");
++ }
++ return 1;
++}
++
++
++static int __init param_blkmtd_erasesz(char *str)
++{
++ int i;
++ for(i = 0; i < MAX_DEVICES; i++) {
++ char *val = strsep(&str, ",");
++ if(val)
++ erasesz[i] = simple_strtoul(val, NULL, 0);
++ DEBUG(2, "blkmtd: erasesz setup: %d = %d\n", i, erasesz[i]);
++ }
++
++ return 1;
++}
++
++
++static int __init param_blkmtd_ro(char *str)
++{
++ int i;
++ for(i = 0; i < MAX_DEVICES; i++) {
++ char *val = strsep(&str, ",");
++ if(val)
++ ro[i] = simple_strtoul(val, NULL, 0);
++ DEBUG(2, "blkmtd: ro setup: %d = %d\n", i, ro[i]);
++ }
++
++ return 1;
++}
++
++
++static int __init param_blkmtd_sync(char *str)
++{
++ if(str[0] == '1')
++ sync = 1;
++ return 1;
++}
++
++__setup("blkmtd_device=", param_blkmtd_device);
++__setup("blkmtd_erasesz=", param_blkmtd_erasesz);
++__setup("blkmtd_ro=", param_blkmtd_ro);
++__setup("blkmtd_sync=", param_blkmtd_sync);
++
++#endif
++
++
++/* Startup */
++static int __init init_blkmtd(void)
++{
++ int i;
++
++ info("version " VERSION);
++ /* Check args - device[0] is the bare minimum*/
++ if(!device[0]) {
++ err("error: missing `device' name\n");
++ return -EINVAL;
++ }
++
++ for(i = 0; i < MAX_DEVICES; i++)
++ add_device(device[i], ro[i], erasesz[i] << 10);
++
++ if(list_empty(&blkmtd_device_list))
++ return -EINVAL;
++
++ return 0;
++}
++
++module_init(init_blkmtd);
++module_exit(cleanup_blkmtd);
+diff -Nurb linux-mips-2.4.27/drivers/mtd/devices/blkmtd.c linux/drivers/mtd/devices/blkmtd.c
+--- linux-mips-2.4.27/drivers/mtd/devices/blkmtd.c 2003-02-26 01:53:49.000000000 +0100
++++ linux/drivers/mtd/devices/blkmtd.c 2004-11-19 10:25:11.816212408 +0100
+@@ -1,5 +1,5 @@
+ /*
+- * $Id: blkmtd.c,v 1.17 2003/01/24 13:00:24 dwmw2 Exp $
++ * $Id: blkmtd.c,v 1.20 2003/06/27 15:10:35 dwmw2 Exp $
+ *
+ * blkmtd.c - use a block device as a fake MTD
+ *
+@@ -143,7 +143,7 @@
+ for(cnt = 0; cnt < pages; cnt++) {
+ page = grab_cache_page(dev->binding->bd_inode->i_mapping, pagenrs[cnt]);
+ pagelst[cnt] = page;
+- if(!PageUptodate(page)) {
++ if(!Page_Uptodate(page)) {
+ iobuf->blocks[iobuf->nr_pages] = pagenrs[cnt];
+ iobuf->maplist[iobuf->nr_pages++] = page;
+ }
+@@ -912,7 +912,7 @@
+ dev->mtd_info.point = 0;
+ dev->mtd_info.unpoint = 0;
+ dev->mtd_info.priv = dev;
+- dev->mtd_info.module = THIS_MODULE;
++ dev->mtd_info.owner = THIS_MODULE;
+
+ list_add(&dev->list, &blkmtd_device_list);
+ if (add_mtd_device(&dev->mtd_info)) {
+diff -Nurb linux-mips-2.4.27/drivers/mtd/devices/doc2000.c linux/drivers/mtd/devices/doc2000.c
+--- linux-mips-2.4.27/drivers/mtd/devices/doc2000.c 2003-02-26 01:53:49.000000000 +0100
++++ linux/drivers/mtd/devices/doc2000.c 2004-11-19 10:25:11.818212104 +0100
+@@ -4,7 +4,7 @@
+ * (c) 1999 Machine Vision Holdings, Inc.
+ * (c) 1999, 2000 David Woodhouse <dwmw2@infradead.org>
+ *
+- * $Id: doc2000.c,v 1.50 2002/12/10 15:05:42 gleixner Exp $
++ * $Id: doc2000.c,v 1.58 2003/11/05 16:42:25 dwmw2 Exp $
+ */
+
+ #include <linux/kernel.h>
+@@ -25,6 +25,7 @@
+ #include <linux/mtd/doc2000.h>
+
+ #define DOC_SUPPORT_2000
++#define DOC_SUPPORT_2000TSOP
+ #define DOC_SUPPORT_MILLENNIUM
+
+ #ifdef DOC_SUPPORT_2000
+@@ -33,7 +34,7 @@
+ #define DoC_is_2000(doc) (0)
+ #endif
+
+-#ifdef DOC_SUPPORT_MILLENNIUM
++#if defined(DOC_SUPPORT_2000TSOP) || defined(DOC_SUPPORT_MILLENNIUM)
+ #define DoC_is_Millennium(doc) (doc->ChipID == DOC_ChipID_DocMil)
+ #else
+ #define DoC_is_Millennium(doc) (0)
+@@ -56,6 +57,9 @@
+ size_t *retlen, u_char *buf, u_char *eccbuf, int oobsel);
+ static int doc_write_ecc(struct mtd_info *mtd, loff_t to, size_t len,
+ size_t *retlen, const u_char *buf, u_char *eccbuf, int oobsel);
++static int doc_writev_ecc(struct mtd_info *mtd, const struct iovec *vecs,
++ unsigned long count, loff_t to, size_t *retlen,
++ u_char *eccbuf, struct nand_oobinfo *oobsel);
+ static int doc_read_oob(struct mtd_info *mtd, loff_t ofs, size_t len,
+ size_t *retlen, u_char *buf);
+ static int doc_write_oob(struct mtd_info *mtd, loff_t ofs, size_t len,
+@@ -92,6 +96,10 @@
+
+ /* Out-of-line routine to wait for chip response */
+ while (!(ReadDOC(docptr, CDSNControl) & CDSN_CTRL_FR_B)) {
++ /* issue 2 read from NOP register after reading from CDSNControl register
++ see Software Requirement 11.4 item 2. */
++ DoC_Delay(doc, 2);
++
+ if (time_after(jiffies, timeo)) {
+ DEBUG(MTD_DEBUG_LEVEL2, "_DoC_WaitReady timed out.\n");
+ return -EIO;
+@@ -145,6 +153,8 @@
+
+ /* Send the command */
+ WriteDOC_(command, docptr, doc->ioreg);
++ if (DoC_is_Millennium(doc))
++ WriteDOC(command, docptr, WritePipeTerm);
+
+ /* Lower the CLE line */
+ WriteDOC(xtraflags | CDSN_CTRL_CE, docptr, CDSNControl);
+@@ -206,6 +216,9 @@
+ }
+ }
+
++ if (DoC_is_Millennium(doc))
++ WriteDOC(ofs & 0xff, docptr, WritePipeTerm);
++
+ DoC_Delay(doc, 2); /* Needed for some slow flash chips. mf. */
+
+ /* FIXME: The SlowIO's for millennium could be replaced by
+@@ -344,15 +357,25 @@
+
+ /* Read the manufacturer and device id codes from the device */
+
+- /* CDSN Slow IO register see Software Requirement 11.4 item 5. */
++ if (DoC_is_Millennium(doc)) {
++ DoC_Delay(doc, 2);
++ dummy = ReadDOC(doc->virtadr, ReadPipeInit);
++ mfr = ReadDOC(doc->virtadr, LastDataRead);
++
++ DoC_Delay(doc, 2);
++ dummy = ReadDOC(doc->virtadr, ReadPipeInit);
++ id = ReadDOC(doc->virtadr, LastDataRead);
++ } else {
++ /* CDSN Slow IO register see Software Req 11.4 item 5. */
+ dummy = ReadDOC(doc->virtadr, CDSNSlowIO);
+ DoC_Delay(doc, 2);
+ mfr = ReadDOC_(doc->virtadr, doc->ioreg);
+
+- /* CDSN Slow IO register see Software Requirement 11.4 item 5. */
++ /* CDSN Slow IO register see Software Req 11.4 item 5. */
+ dummy = ReadDOC(doc->virtadr, CDSNSlowIO);
+ DoC_Delay(doc, 2);
+ id = ReadDOC_(doc->virtadr, doc->ioreg);
++ }
+
+ /* No response - return failure */
+ if (mfr == 0xff || mfr == 0)
+@@ -410,20 +433,16 @@
+
+ /* DoC_ScanChips: Find all NAND chips present in a DiskOnChip, and identify them */
+
+-static void DoC_ScanChips(struct DiskOnChip *this)
++static void DoC_ScanChips(struct DiskOnChip *this, int maxchips)
+ {
+ int floor, chip;
+ int numchips[MAX_FLOORS];
+- int maxchips = MAX_CHIPS;
+ int ret = 1;
+
+ this->numchips = 0;
+ this->mfr = 0;
+ this->id = 0;
+
+- if (DoC_is_Millennium(this))
+- maxchips = MAX_CHIPS_MIL;
+-
+ /* For each floor, find the number of valid chips it contains */
+ for (floor = 0; floor < MAX_FLOORS; floor++) {
+ ret = 1;
+@@ -515,6 +534,7 @@
+ {
+ struct DiskOnChip *this = (struct DiskOnChip *) mtd->priv;
+ struct DiskOnChip *old = NULL;
++ int maxchips;
+
+ /* We must avoid being called twice for the same device. */
+
+@@ -538,14 +558,28 @@
+
+
+ switch (this->ChipID) {
++ case DOC_ChipID_Doc2kTSOP:
++ mtd->name = "DiskOnChip 2000 TSOP";
++ this->ioreg = DoC_Mil_CDSN_IO;
++ /* Pretend it's a Millennium */
++ this->ChipID = DOC_ChipID_DocMil;
++ maxchips = MAX_CHIPS;
++ break;
+ case DOC_ChipID_Doc2k:
+ mtd->name = "DiskOnChip 2000";
+ this->ioreg = DoC_2k_CDSN_IO;
++ maxchips = MAX_CHIPS;
+ break;
+ case DOC_ChipID_DocMil:
+ mtd->name = "DiskOnChip Millennium";
+ this->ioreg = DoC_Mil_CDSN_IO;
++ maxchips = MAX_CHIPS_MIL;
+ break;
++ default:
++ printk("Unknown ChipID 0x%02x\n", this->ChipID);
++ kfree(mtd);
++ iounmap((void *) this->virtadr);
++ return;
+ }
+
+ printk(KERN_NOTICE "%s found at address 0x%lX\n", mtd->name,
+@@ -553,11 +587,12 @@
+
+ mtd->type = MTD_NANDFLASH;
+ mtd->flags = MTD_CAP_NANDFLASH;
++ mtd->ecctype = MTD_ECC_RS_DiskOnChip;
+ mtd->size = 0;
+ mtd->erasesize = 0;
+ mtd->oobblock = 512;
+ mtd->oobsize = 16;
+- mtd->module = THIS_MODULE;
++ mtd->owner = THIS_MODULE;
+ mtd->erase = doc_erase;
+ mtd->point = NULL;
+ mtd->unpoint = NULL;
+@@ -565,6 +600,7 @@
+ mtd->write = doc_write;
+ mtd->read_ecc = doc_read_ecc;
+ mtd->write_ecc = doc_write_ecc;
++ mtd->writev_ecc = doc_writev_ecc;
+ mtd->read_oob = doc_read_oob;
+ mtd->write_oob = doc_write_oob;
+ mtd->sync = NULL;
+@@ -577,7 +613,7 @@
+ init_MUTEX(&this->lock);
+
+ /* Ident all the chips present. */
+- DoC_ScanChips(this);
++ DoC_ScanChips(this, maxchips);
+
+ if (!this->totlen) {
+ kfree(mtd);
+@@ -608,6 +644,7 @@
+ unsigned char syndrome[6];
+ volatile char dummy;
+ int i, len256 = 0, ret=0;
++ size_t left = len;
+
+ docptr = this->virtadr;
+
+@@ -617,6 +654,10 @@
+
+ down(&this->lock);
+
++ *retlen = 0;
++ while (left) {
++ len = left;
++
+ /* Don't allow a single read to cross a 512-byte block boundary */
+ if (from + len > ((from | 0x1ff) + 1))
+ len = ((from | 0x1ff) + 1) - from;
+@@ -673,7 +714,7 @@
+ DoC_ReadBuf(this, &buf[len256], len - len256);
+
+ /* Let the caller know we completed it */
+- *retlen = len;
++ *retlen += len;
+
+ if (eccbuf) {
+ /* Read the ECC data through the DiskOnChip ECC logic */
+@@ -730,11 +771,16 @@
+
+ /* according to 11.4.1, we need to wait for the busy line
+ * drop if we read to the end of the page. */
+- if(0 == ((from + *retlen) & 0x1ff))
++ if(0 == ((from + len) & 0x1ff))
+ {
+ DoC_WaitReady(this);
+ }
+
++ from += len;
++ left -= len;
++ buf += len;
++ }
++
+ up(&this->lock);
+
+ return ret;
+@@ -757,6 +803,8 @@
+ volatile char dummy;
+ int len256 = 0;
+ struct Nand *mychip;
++ size_t left = len;
++ int status;
+
+ docptr = this->virtadr;
+
+@@ -766,15 +814,21 @@
+
+ down(&this->lock);
+
++ *retlen = 0;
++ while (left) {
++ len = left;
++
+ /* Don't allow a single write to cross a 512-byte block boundary */
+ if (to + len > ((to | 0x1ff) + 1))
+ len = ((to | 0x1ff) + 1) - to;
+
+ /* The ECC will not be calculated correctly if less than 512 is written */
++/* DBB-
+ if (len != 0x200 && eccbuf)
+ printk(KERN_WARNING
+ "ECC needs a full sector write (adr: %lx size %lx)\n",
+ (long) to, (long) len);
++ -DBB */
+
+ /* printk("DoC_Write (adr: %lx size %lx)\n", (long) to, (long) len); */
+
+@@ -853,6 +907,9 @@
+ WriteDOC_(0, docptr, this->ioreg);
+ }
+
++ WriteDOC(CDSN_CTRL_ECC_IO | CDSN_CTRL_FLASH_IO | CDSN_CTRL_CE, docptr,
++ CDSNControl);
++
+ /* Read the ECC data through the DiskOnChip ECC logic */
+ for (di = 0; di < 6; di++) {
+ eccbuf[di] = ReadDOC(docptr, ECCSyndrome0 + di);
+@@ -874,10 +931,16 @@
+ DoC_Command(this, NAND_CMD_STATUS, CDSN_CTRL_WP);
+ /* There's an implicit DoC_WaitReady() in DoC_Command */
+
++ if (DoC_is_Millennium(this)) {
++ ReadDOC(docptr, ReadPipeInit);
++ status = ReadDOC(docptr, LastDataRead);
++ } else {
+ dummy = ReadDOC(docptr, CDSNSlowIO);
+ DoC_Delay(this, 2);
++ status = ReadDOC_(docptr, this->ioreg);
++ }
+
+- if (ReadDOC_(docptr, this->ioreg) & 1) {
++ if (status & 1) {
+ printk(KERN_ERR "Error programming flash\n");
+ /* Error in programming */
+ *retlen = 0;
+@@ -886,7 +949,7 @@
+ }
+
+ /* Let the caller know we completed it */
+- *retlen = len;
++ *retlen += len;
+
+ if (eccbuf) {
+ unsigned char x[8];
+@@ -901,13 +964,81 @@
+ x[7]=0x55;
+
+ ret = doc_write_oob_nolock(mtd, to, 8, &dummy, x);
++ if (ret) {
+ up(&this->lock);
+ return ret;
+ }
++ }
++
++ to += len;
++ left -= len;
++ buf += len;
++ }
++
+ up(&this->lock);
+ return 0;
+ }
+
++static int doc_writev_ecc(struct mtd_info *mtd, const struct iovec *vecs,
++ unsigned long count, loff_t to, size_t *retlen,
++ u_char *eccbuf, struct nand_oobinfo *oobsel)
++{
++ static char static_buf[512];
++ static DECLARE_MUTEX(writev_buf_sem);
++
++ size_t totretlen = 0;
++ size_t thisvecofs = 0;
++ int ret= 0;
++
++ down(&writev_buf_sem);
++
++ while(count) {
++ size_t thislen, thisretlen;
++ unsigned char *buf;
++
++ buf = vecs->iov_base + thisvecofs;
++ thislen = vecs->iov_len - thisvecofs;
++
++
++ if (thislen >= 512) {
++ thislen = thislen & ~(512-1);
++ thisvecofs += thislen;
++ } else {
++ /* Not enough to fill a page. Copy into buf */
++ memcpy(static_buf, buf, thislen);
++ buf = &static_buf[thislen];
++
++ while(count && thislen < 512) {
++ vecs++;
++ count--;
++ thisvecofs = min((512-thislen), vecs->iov_len);
++ memcpy(buf, vecs->iov_base, thisvecofs);
++ thislen += thisvecofs;
++ buf += thisvecofs;
++ }
++ buf = static_buf;
++ }
++ if (count && thisvecofs == vecs->iov_len) {
++ thisvecofs = 0;
++ vecs++;
++ count--;
++ }
++ ret = doc_write_ecc(mtd, to, thislen, &thisretlen, buf, eccbuf, oobsel);
++
++ totretlen += thisretlen;
++
++ if (ret || thisretlen != thislen)
++ break;
++
++ to += thislen;
++ }
++
++ up(&writev_buf_sem);
++ *retlen = totretlen;
++ return ret;
++}
++
++
+ static int doc_read_oob(struct mtd_info *mtd, loff_t ofs, size_t len,
+ size_t * retlen, u_char * buf)
+ {
+@@ -977,6 +1108,7 @@
+ unsigned long docptr = this->virtadr;
+ struct Nand *mychip = &this->chips[ofs >> this->chipshift];
+ volatile int dummy;
++ int status;
+
+ // printk("doc_write_oob(%lx, %d): %2.2X %2.2X %2.2X %2.2X ... %2.2X %2.2X .. %2.2X %2.2X\n",(long)ofs, len,
+ // buf[0], buf[1], buf[2], buf[3], buf[8], buf[9], buf[14],buf[15]);
+@@ -1025,10 +1157,16 @@
+ DoC_Command(this, NAND_CMD_STATUS, 0);
+ /* DoC_WaitReady() is implicit in DoC_Command */
+
++ if (DoC_is_Millennium(this)) {
++ ReadDOC(docptr, ReadPipeInit);
++ status = ReadDOC(docptr, LastDataRead);
++ } else {
+ dummy = ReadDOC(docptr, CDSNSlowIO);
+ DoC_Delay(this, 2);
++ status = ReadDOC_(docptr, this->ioreg);
++ }
+
+- if (ReadDOC_(docptr, this->ioreg) & 1) {
++ if (status & 1) {
+ printk(KERN_ERR "Error programming oob data\n");
+ /* There was an error */
+ *retlen = 0;
+@@ -1044,10 +1182,16 @@
+ DoC_Command(this, NAND_CMD_STATUS, 0);
+ /* DoC_WaitReady() is implicit in DoC_Command */
+
++ if (DoC_is_Millennium(this)) {
++ ReadDOC(docptr, ReadPipeInit);
++ status = ReadDOC(docptr, LastDataRead);
++ } else {
+ dummy = ReadDOC(docptr, CDSNSlowIO);
+ DoC_Delay(this, 2);
++ status = ReadDOC_(docptr, this->ioreg);
++ }
+
+- if (ReadDOC_(docptr, this->ioreg) & 1) {
++ if (status & 1) {
+ printk(KERN_ERR "Error programming oob data\n");
+ /* There was an error */
+ *retlen = 0;
+@@ -1080,6 +1224,7 @@
+ volatile int dummy;
+ unsigned long docptr;
+ struct Nand *mychip;
++ int status;
+
+ down(&this->lock);
+
+@@ -1111,10 +1256,16 @@
+
+ DoC_Command(this, NAND_CMD_STATUS, CDSN_CTRL_WP);
+
++ if (DoC_is_Millennium(this)) {
++ ReadDOC(docptr, ReadPipeInit);
++ status = ReadDOC(docptr, LastDataRead);
++ } else {
+ dummy = ReadDOC(docptr, CDSNSlowIO);
+ DoC_Delay(this, 2);
++ status = ReadDOC_(docptr, this->ioreg);
++ }
+
+- if (ReadDOC_(docptr, this->ioreg) & 1) {
++ if (status & 1) {
+ printk(KERN_ERR "Error erasing at 0x%x\n", ofs);
+ /* There was an error */
+ instr->state = MTD_ERASE_FAILED;
+diff -Nurb linux-mips-2.4.27/drivers/mtd/devices/doc2001.c linux/drivers/mtd/devices/doc2001.c
+--- linux-mips-2.4.27/drivers/mtd/devices/doc2001.c 2003-02-26 01:53:49.000000000 +0100
++++ linux/drivers/mtd/devices/doc2001.c 2004-11-19 10:25:11.835209520 +0100
+@@ -4,7 +4,7 @@
+ * (c) 1999 Machine Vision Holdings, Inc.
+ * (c) 1999, 2000 David Woodhouse <dwmw2@infradead.org>
+ *
+- * $Id: doc2001.c,v 1.38 2002/12/10 15:05:42 gleixner Exp $
++ * $Id: doc2001.c,v 1.41 2003/06/11 09:45:19 dwmw2 Exp $
+ */
+
+ #include <linux/kernel.h>
+@@ -359,14 +359,15 @@
+
+ mtd->type = MTD_NANDFLASH;
+ mtd->flags = MTD_CAP_NANDFLASH;
++ mtd->ecctype = MTD_ECC_RS_DiskOnChip;
+ mtd->size = 0;
+
+- /* FIXME: erase size is not always 8kB */
++ /* FIXME: erase size is not always 8KiB */
+ mtd->erasesize = 0x2000;
+
+ mtd->oobblock = 512;
+ mtd->oobsize = 16;
+- mtd->module = THIS_MODULE;
++ mtd->owner = THIS_MODULE;
+ mtd->erase = doc_erase;
+ mtd->point = NULL;
+ mtd->unpoint = NULL;
+diff -Nurb linux-mips-2.4.27/drivers/mtd/devices/doc2001plus.c linux/drivers/mtd/devices/doc2001plus.c
+--- linux-mips-2.4.27/drivers/mtd/devices/doc2001plus.c 1970-01-01 01:00:00.000000000 +0100
++++ linux/drivers/mtd/devices/doc2001plus.c 2004-11-19 10:25:11.837209216 +0100
+@@ -0,0 +1,1154 @@
++/*
++ * Linux driver for Disk-On-Chip Millennium Plus
++ *
++ * (c) 2002-2003 Greg Ungerer <gerg@snapgear.com>
++ * (c) 2002-2003 SnapGear Inc
++ * (c) 1999 Machine Vision Holdings, Inc.
++ * (c) 1999, 2000 David Woodhouse <dwmw2@infradead.org>
++ *
++ * $Id: doc2001plus.c,v 1.7 2003/07/11 07:36:22 dwmw2 Exp $
++ *
++ * Released under GPL
++ */
++
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <asm/errno.h>
++#include <asm/io.h>
++#include <asm/uaccess.h>
++#include <linux/miscdevice.h>
++#include <linux/pci.h>
++#include <linux/delay.h>
++#include <linux/slab.h>
++#include <linux/sched.h>
++#include <linux/init.h>
++#include <linux/types.h>
++
++#include <linux/mtd/mtd.h>
++#include <linux/mtd/nand.h>
++#include <linux/mtd/doc2000.h>
++
++/* #define ECC_DEBUG */
++
++/* I have no idea why some DoC chips can not use memcop_form|to_io().
++ * This may be due to the different revisions of the ASIC controller built-in or
++ * simplily a QA/Bug issue. Who knows ?? If you have trouble, please uncomment
++ * this:*/
++#undef USE_MEMCPY
++
++static int doc_read(struct mtd_info *mtd, loff_t from, size_t len,
++ size_t *retlen, u_char *buf);
++static int doc_write(struct mtd_info *mtd, loff_t to, size_t len,
++ size_t *retlen, const u_char *buf);
++static int doc_read_ecc(struct mtd_info *mtd, loff_t from, size_t len,
++ size_t *retlen, u_char *buf, u_char *eccbuf,
++ struct nand_oobinfo *oobsel);
++static int doc_write_ecc(struct mtd_info *mtd, loff_t to, size_t len,
++ size_t *retlen, const u_char *buf, u_char *eccbuf,
++ struct nand_oobinfo *oobsel);
++static int doc_read_oob(struct mtd_info *mtd, loff_t ofs, size_t len,
++ size_t *retlen, u_char *buf);
++static int doc_write_oob(struct mtd_info *mtd, loff_t ofs, size_t len,
++ size_t *retlen, const u_char *buf);
++static int doc_erase (struct mtd_info *mtd, struct erase_info *instr);
++
++static struct mtd_info *docmilpluslist = NULL;
++
++
++/* Perform the required delay cycles by writing to the NOP register */
++static void DoC_Delay(unsigned long docptr, int cycles)
++{
++ int i;
++
++ for (i = 0; (i < cycles); i++)
++ WriteDOC(0, docptr, Mplus_NOP);
++}
++
++#define CDSN_CTRL_FR_B_MASK (CDSN_CTRL_FR_B0 | CDSN_CTRL_FR_B1)
++
++/* DOC_WaitReady: Wait for RDY line to be asserted by the flash chip */
++static int _DoC_WaitReady(unsigned long docptr)
++{
++ unsigned int c = 0xffff;
++
++ DEBUG(MTD_DEBUG_LEVEL3,
++ "_DoC_WaitReady called for out-of-line wait\n");
++
++ /* Out-of-line routine to wait for chip response */
++ while (((ReadDOC(docptr, Mplus_FlashControl) & CDSN_CTRL_FR_B_MASK) != CDSN_CTRL_FR_B_MASK) && --c)
++ ;
++
++ if (c == 0)
++ DEBUG(MTD_DEBUG_LEVEL2, "_DoC_WaitReady timed out.\n");
++
++ return (c == 0);
++}
++
++static inline int DoC_WaitReady(unsigned long docptr)
++{
++ /* This is inline, to optimise the common case, where it's ready instantly */
++ int ret = 0;
++
++ /* read form NOP register should be issued prior to the read from CDSNControl
++ see Software Requirement 11.4 item 2. */
++ DoC_Delay(docptr, 4);
++
++ if ((ReadDOC(docptr, Mplus_FlashControl) & CDSN_CTRL_FR_B_MASK) != CDSN_CTRL_FR_B_MASK)
++ /* Call the out-of-line routine to wait */
++ ret = _DoC_WaitReady(docptr);
++
++ return ret;
++}
++
++/* For some reason the Millennium Plus seems to occassionally put itself
++ * into reset mode. For me this happens randomly, with no pattern that I
++ * can detect. M-systems suggest always check this on any block level
++ * operation and setting to normal mode if in reset mode.
++ */
++static inline void DoC_CheckASIC(unsigned long docptr)
++{
++ /* Make sure the DoC is in normal mode */
++ if ((ReadDOC(docptr, Mplus_DOCControl) & DOC_MODE_NORMAL) == 0) {
++ WriteDOC((DOC_MODE_NORMAL | DOC_MODE_MDWREN), docptr, Mplus_DOCControl);
++ WriteDOC(~(DOC_MODE_NORMAL | DOC_MODE_MDWREN), docptr, Mplus_CtrlConfirm);
++ }
++}
++
++/* DoC_Command: Send a flash command to the flash chip through the Flash
++ * command register. Need 2 Write Pipeline Terminates to complete send.
++ */
++static inline void DoC_Command(unsigned long docptr, unsigned char command,
++ unsigned char xtraflags)
++{
++ WriteDOC(command, docptr, Mplus_FlashCmd);
++ WriteDOC(command, docptr, Mplus_WritePipeTerm);
++ WriteDOC(command, docptr, Mplus_WritePipeTerm);
++}
++
++/* DoC_Address: Set the current address for the flash chip through the Flash
++ * Address register. Need 2 Write Pipeline Terminates to complete send.
++ */
++static inline void DoC_Address(struct DiskOnChip *doc, int numbytes,
++ unsigned long ofs, unsigned char xtraflags1,
++ unsigned char xtraflags2)
++{
++ unsigned long docptr = doc->virtadr;
++
++ /* Allow for possible Mill Plus internal flash interleaving */
++ ofs >>= doc->interleave;
++
++ switch (numbytes) {
++ case 1:
++ /* Send single byte, bits 0-7. */
++ WriteDOC(ofs & 0xff, docptr, Mplus_FlashAddress);
++ break;
++ case 2:
++ /* Send bits 9-16 followed by 17-23 */
++ WriteDOC((ofs >> 9) & 0xff, docptr, Mplus_FlashAddress);
++ WriteDOC((ofs >> 17) & 0xff, docptr, Mplus_FlashAddress);
++ break;
++ case 3:
++ /* Send 0-7, 9-16, then 17-23 */
++ WriteDOC(ofs & 0xff, docptr, Mplus_FlashAddress);
++ WriteDOC((ofs >> 9) & 0xff, docptr, Mplus_FlashAddress);
++ WriteDOC((ofs >> 17) & 0xff, docptr, Mplus_FlashAddress);
++ break;
++ default:
++ return;
++ }
++
++ WriteDOC(0x00, docptr, Mplus_WritePipeTerm);
++ WriteDOC(0x00, docptr, Mplus_WritePipeTerm);
++}
++
++/* DoC_SelectChip: Select a given flash chip within the current floor */
++static int DoC_SelectChip(unsigned long docptr, int chip)
++{
++ /* No choice for flash chip on Millennium Plus */
++ return 0;
++}
++
++/* DoC_SelectFloor: Select a given floor (bank of flash chips) */
++static int DoC_SelectFloor(unsigned long docptr, int floor)
++{
++ WriteDOC((floor & 0x3), docptr, Mplus_DeviceSelect);
++ return 0;
++}
++
++/*
++ * Translate the given offset into the appropriate command and offset.
++ * This does the mapping using the 16bit interleave layout defined by
++ * M-Systems, and looks like this for a sector pair:
++ * +-----------+-------+-------+-------+--------------+---------+-----------+
++ * | 0 --- 511 |512-517|518-519|520-521| 522 --- 1033 |1034-1039|1040 - 1055|
++ * +-----------+-------+-------+-------+--------------+---------+-----------+
++ * | Data 0 | ECC 0 |Flags0 |Flags1 | Data 1 |ECC 1 | OOB 1 + 2 |
++ * +-----------+-------+-------+-------+--------------+---------+-----------+
++ */
++/* FIXME: This lives in INFTL not here. Other users of flash devices
++ may not want it */
++static unsigned int DoC_GetDataOffset(struct mtd_info *mtd, loff_t *from)
++{
++ struct DiskOnChip *this = (struct DiskOnChip *)mtd->priv;
++
++ if (this->interleave) {
++ unsigned int ofs = *from & 0x3ff;
++ unsigned int cmd;
++
++ if (ofs < 512) {
++ cmd = NAND_CMD_READ0;
++ ofs &= 0x1ff;
++ } else if (ofs < 1014) {
++ cmd = NAND_CMD_READ1;
++ ofs = (ofs & 0x1ff) + 10;
++ } else {
++ cmd = NAND_CMD_READOOB;
++ ofs = ofs - 1014;
++ }
++
++ *from = (*from & ~0x3ff) | ofs;
++ return cmd;
++ } else {
++ /* No interleave */
++ if ((*from) & 0x100)
++ return NAND_CMD_READ1;
++ return NAND_CMD_READ0;
++ }
++}
++
++static unsigned int DoC_GetECCOffset(struct mtd_info *mtd, loff_t *from)
++{
++ unsigned int ofs, cmd;
++
++ if (*from & 0x200) {
++ cmd = NAND_CMD_READOOB;
++ ofs = 10 + (*from & 0xf);
++ } else {
++ cmd = NAND_CMD_READ1;
++ ofs = (*from & 0xf);
++ }
++
++ *from = (*from & ~0x3ff) | ofs;
++ return cmd;
++}
++
++static unsigned int DoC_GetFlagsOffset(struct mtd_info *mtd, loff_t *from)
++{
++ unsigned int ofs, cmd;
++
++ cmd = NAND_CMD_READ1;
++ ofs = (*from & 0x200) ? 8 : 6;
++ *from = (*from & ~0x3ff) | ofs;
++ return cmd;
++}
++
++static unsigned int DoC_GetHdrOffset(struct mtd_info *mtd, loff_t *from)
++{
++ unsigned int ofs, cmd;
++
++ cmd = NAND_CMD_READOOB;
++ ofs = (*from & 0x200) ? 24 : 16;
++ *from = (*from & ~0x3ff) | ofs;
++ return cmd;
++}
++
++static inline void MemReadDOC(unsigned long docptr, unsigned char *buf, int len)
++{
++#ifndef USE_MEMCPY
++ int i;
++ for (i = 0; i < len; i++)
++ buf[i] = ReadDOC(docptr, Mil_CDSN_IO + i);
++#else
++ memcpy_fromio(buf, docptr + DoC_Mil_CDSN_IO, len);
++#endif
++}
++
++static inline void MemWriteDOC(unsigned long docptr, unsigned char *buf, int len)
++{
++#ifndef USE_MEMCPY
++ int i;
++ for (i = 0; i < len; i++)
++ WriteDOC(buf[i], docptr, Mil_CDSN_IO + i);
++#else
++ memcpy_toio(docptr + DoC_Mil_CDSN_IO, buf, len);
++#endif
++}
++
++/* DoC_IdentChip: Identify a given NAND chip given {floor,chip} */
++static int DoC_IdentChip(struct DiskOnChip *doc, int floor, int chip)
++{
++ int mfr, id, i, j;
++ volatile char dummy;
++ unsigned long docptr = doc->virtadr;
++
++ /* Page in the required floor/chip */
++ DoC_SelectFloor(docptr, floor);
++ DoC_SelectChip(docptr, chip);
++
++ /* Millennium Plus bus cycle sequence as per figure 2, section 2.4 */
++ WriteDOC((DOC_FLASH_CE | DOC_FLASH_WP), docptr, Mplus_FlashSelect);
++
++ /* Reset the chip, see Software Requirement 11.4 item 1. */
++ DoC_Command(docptr, NAND_CMD_RESET, 0);
++ DoC_WaitReady(docptr);
++
++ /* Read the NAND chip ID: 1. Send ReadID command */
++ DoC_Command(docptr, NAND_CMD_READID, 0);
++
++ /* Read the NAND chip ID: 2. Send address byte zero */
++ DoC_Address(doc, 1, 0x00, 0, 0x00);
++
++ WriteDOC(0, docptr, Mplus_FlashControl);
++ DoC_WaitReady(docptr);
++
++ /* Read the manufacturer and device id codes of the flash device through
++ CDSN IO register see Software Requirement 11.4 item 5.*/
++ dummy = ReadDOC(docptr, Mplus_ReadPipeInit);
++ dummy = ReadDOC(docptr, Mplus_ReadPipeInit);
++
++ mfr = ReadDOC(docptr, Mil_CDSN_IO);
++ if (doc->interleave)
++ dummy = ReadDOC(docptr, Mil_CDSN_IO); /* 2 way interleave */
++
++ id = ReadDOC(docptr, Mil_CDSN_IO);
++ if (doc->interleave)
++ dummy = ReadDOC(docptr, Mil_CDSN_IO); /* 2 way interleave */
++
++ dummy = ReadDOC(docptr, Mplus_LastDataRead);
++ dummy = ReadDOC(docptr, Mplus_LastDataRead);
++
++ /* Disable flash internally */
++ WriteDOC(0, docptr, Mplus_FlashSelect);
++
++ /* No response - return failure */
++ if (mfr == 0xff || mfr == 0)
++ return 0;
++
++ for (i = 0; nand_flash_ids[i].name != NULL; i++) {
++ if (id == nand_flash_ids[i].id) {
++ /* Try to identify manufacturer */
++ for (j = 0; nand_manuf_ids[j].id != 0x0; j++) {
++ if (nand_manuf_ids[j].id == mfr)
++ break;
++ }
++ printk(KERN_INFO "Flash chip found: Manufacturer ID: %2.2X, "
++ "Chip ID: %2.2X (%s:%s)\n", mfr, id,
++ nand_manuf_ids[j].name, nand_flash_ids[i].name);
++ doc->mfr = mfr;
++ doc->id = id;
++ doc->chipshift = nand_flash_ids[i].chipshift;
++ doc->erasesize = nand_flash_ids[i].erasesize << doc->interleave;
++ break;
++ }
++ }
++
++ if (nand_flash_ids[i].name == NULL)
++ return 0;
++ return 1;
++}
++
++/* DoC_ScanChips: Find all NAND chips present in a DiskOnChip, and identify them */
++static void DoC_ScanChips(struct DiskOnChip *this)
++{
++ int floor, chip;
++ int numchips[MAX_FLOORS_MPLUS];
++ int ret;
++
++ this->numchips = 0;
++ this->mfr = 0;
++ this->id = 0;
++
++ /* Work out the intended interleave setting */
++ this->interleave = 0;
++ if (this->ChipID == DOC_ChipID_DocMilPlus32)
++ this->interleave = 1;
++
++ /* Check the ASIC agrees */
++ if ( (this->interleave << 2) !=
++ (ReadDOC(this->virtadr, Mplus_Configuration) & 4)) {
++ u_char conf = ReadDOC(this->virtadr, Mplus_Configuration);
++ printk(KERN_NOTICE "Setting DiskOnChip Millennium Plus interleave to %s\n",
++ this->interleave?"on (16-bit)":"off (8-bit)");
++ conf ^= 4;
++ WriteDOC(this->virtadr, conf, Mplus_Configuration);
++ }
++
++ /* For each floor, find the number of valid chips it contains */
++ for (floor = 0,ret = 1; floor < MAX_FLOORS_MPLUS; floor++) {
++ numchips[floor] = 0;
++ for (chip = 0; chip < MAX_CHIPS_MPLUS && ret != 0; chip++) {
++ ret = DoC_IdentChip(this, floor, chip);
++ if (ret) {
++ numchips[floor]++;
++ this->numchips++;
++ }
++ }
++ }
++ /* If there are none at all that we recognise, bail */
++ if (!this->numchips) {
++ printk("No flash chips recognised.\n");
++ return;
++ }
++
++ /* Allocate an array to hold the information for each chip */
++ this->chips = kmalloc(sizeof(struct Nand) * this->numchips, GFP_KERNEL);
++ if (!this->chips){
++ printk("MTD: No memory for allocating chip info structures\n");
++ return;
++ }
++
++ /* Fill out the chip array with {floor, chipno} for each
++ * detected chip in the device. */
++ for (floor = 0, ret = 0; floor < MAX_FLOORS_MPLUS; floor++) {
++ for (chip = 0 ; chip < numchips[floor] ; chip++) {
++ this->chips[ret].floor = floor;
++ this->chips[ret].chip = chip;
++ this->chips[ret].curadr = 0;
++ this->chips[ret].curmode = 0x50;
++ ret++;
++ }
++ }
++
++ /* Calculate and print the total size of the device */
++ this->totlen = this->numchips * (1 << this->chipshift);
++ printk(KERN_INFO "%d flash chips found. Total DiskOnChip size: %ld MiB\n",
++ this->numchips ,this->totlen >> 20);
++}
++
++static int DoCMilPlus_is_alias(struct DiskOnChip *doc1, struct DiskOnChip *doc2)
++{
++ int tmp1, tmp2, retval;
++
++ if (doc1->physadr == doc2->physadr)
++ return 1;
++
++ /* Use the alias resolution register which was set aside for this
++ * purpose. If it's value is the same on both chips, they might
++ * be the same chip, and we write to one and check for a change in
++ * the other. It's unclear if this register is usuable in the
++ * DoC 2000 (it's in the Millennium docs), but it seems to work. */
++ tmp1 = ReadDOC(doc1->virtadr, Mplus_AliasResolution);
++ tmp2 = ReadDOC(doc2->virtadr, Mplus_AliasResolution);
++ if (tmp1 != tmp2)
++ return 0;
++
++ WriteDOC((tmp1+1) % 0xff, doc1->virtadr, Mplus_AliasResolution);
++ tmp2 = ReadDOC(doc2->virtadr, Mplus_AliasResolution);
++ if (tmp2 == (tmp1+1) % 0xff)
++ retval = 1;
++ else
++ retval = 0;
++
++ /* Restore register contents. May not be necessary, but do it just to
++ * be safe. */
++ WriteDOC(tmp1, doc1->virtadr, Mplus_AliasResolution);
++
++ return retval;
++}
++
++static const char im_name[] = "DoCMilPlus_init";
++
++/* This routine is made available to other mtd code via
++ * inter_module_register. It must only be accessed through
++ * inter_module_get which will bump the use count of this module. The
++ * addresses passed back in mtd are valid as long as the use count of
++ * this module is non-zero, i.e. between inter_module_get and
++ * inter_module_put. Keith Owens <kaos@ocs.com.au> 29 Oct 2000.
++ */
++static void DoCMilPlus_init(struct mtd_info *mtd)
++{
++ struct DiskOnChip *this = (struct DiskOnChip *)mtd->priv;
++ struct DiskOnChip *old = NULL;
++
++ /* We must avoid being called twice for the same device. */
++ if (docmilpluslist)
++ old = (struct DiskOnChip *)docmilpluslist->priv;
++
++ while (old) {
++ if (DoCMilPlus_is_alias(this, old)) {
++ printk(KERN_NOTICE "Ignoring DiskOnChip Millennium "
++ "Plus at 0x%lX - already configured\n",
++ this->physadr);
++ iounmap((void *)this->virtadr);
++ kfree(mtd);
++ return;
++ }
++ if (old->nextdoc)
++ old = (struct DiskOnChip *)old->nextdoc->priv;
++ else
++ old = NULL;
++ }
++
++ mtd->name = "DiskOnChip Millennium Plus";
++ printk(KERN_NOTICE "DiskOnChip Millennium Plus found at "
++ "address 0x%lX\n", this->physadr);
++
++ mtd->type = MTD_NANDFLASH;
++ mtd->flags = MTD_CAP_NANDFLASH;
++ mtd->ecctype = MTD_ECC_RS_DiskOnChip;
++ mtd->size = 0;
++
++ mtd->erasesize = 0;
++ mtd->oobblock = 512;
++ mtd->oobsize = 16;
++ mtd->owner = THIS_MODULE;
++ mtd->erase = doc_erase;
++ mtd->point = NULL;
++ mtd->unpoint = NULL;
++ mtd->read = doc_read;
++ mtd->write = doc_write;
++ mtd->read_ecc = doc_read_ecc;
++ mtd->write_ecc = doc_write_ecc;
++ mtd->read_oob = doc_read_oob;
++ mtd->write_oob = doc_write_oob;
++ mtd->sync = NULL;
++
++ this->totlen = 0;
++ this->numchips = 0;
++ this->curfloor = -1;
++ this->curchip = -1;
++
++ /* Ident all the chips present. */
++ DoC_ScanChips(this);
++
++ if (!this->totlen) {
++ kfree(mtd);
++ iounmap((void *)this->virtadr);
++ } else {
++ this->nextdoc = docmilpluslist;
++ docmilpluslist = mtd;
++ mtd->size = this->totlen;
++ mtd->erasesize = this->erasesize;
++ add_mtd_device(mtd);
++ return;
++ }
++}
++
++#if 0
++static int doc_dumpblk(struct mtd_info *mtd, loff_t from)
++{
++ int i;
++ loff_t fofs;
++ struct DiskOnChip *this = (struct DiskOnChip *)mtd->priv;
++ unsigned long docptr = this->virtadr;
++ struct Nand *mychip = &this->chips[from >> (this->chipshift)];
++ unsigned char *bp, buf[1056];
++ char c[32];
++
++ from &= ~0x3ff;
++
++ /* Don't allow read past end of device */
++ if (from >= this->totlen)
++ return -EINVAL;
++
++ DoC_CheckASIC(docptr);
++
++ /* Find the chip which is to be used and select it */
++ if (this->curfloor != mychip->floor) {
++ DoC_SelectFloor(docptr, mychip->floor);
++ DoC_SelectChip(docptr, mychip->chip);
++ } else if (this->curchip != mychip->chip) {
++ DoC_SelectChip(docptr, mychip->chip);
++ }
++ this->curfloor = mychip->floor;
++ this->curchip = mychip->chip;
++
++ /* Millennium Plus bus cycle sequence as per figure 2, section 2.4 */
++ WriteDOC((DOC_FLASH_CE | DOC_FLASH_WP), docptr, Mplus_FlashSelect);
++
++ /* Reset the chip, see Software Requirement 11.4 item 1. */
++ DoC_Command(docptr, NAND_CMD_RESET, 0);
++ DoC_WaitReady(docptr);
++
++ fofs = from;
++ DoC_Command(docptr, DoC_GetDataOffset(mtd, &fofs), 0);
++ DoC_Address(this, 3, fofs, 0, 0x00);
++ WriteDOC(0, docptr, Mplus_FlashControl);
++ DoC_WaitReady(docptr);
++
++ /* disable the ECC engine */
++ WriteDOC(DOC_ECC_RESET, docptr, Mplus_ECCConf);
++
++ ReadDOC(docptr, Mplus_ReadPipeInit);
++ ReadDOC(docptr, Mplus_ReadPipeInit);
++
++ /* Read the data via the internal pipeline through CDSN IO
++ register, see Pipelined Read Operations 11.3 */
++ MemReadDOC(docptr, buf, 1054);
++ buf[1054] = ReadDOC(docptr, Mplus_LastDataRead);
++ buf[1055] = ReadDOC(docptr, Mplus_LastDataRead);
++
++ memset(&c[0], 0, sizeof(c));
++ printk("DUMP OFFSET=%x:\n", (int)from);
++
++ for (i = 0, bp = &buf[0]; (i < 1056); i++) {
++ if ((i % 16) == 0)
++ printk("%08x: ", i);
++ printk(" %02x", *bp);
++ c[(i & 0xf)] = ((*bp >= 0x20) && (*bp <= 0x7f)) ? *bp : '.';
++ bp++;
++ if (((i + 1) % 16) == 0)
++ printk(" %s\n", c);
++ }
++ printk("\n");
++
++ /* Disable flash internally */
++ WriteDOC(0, docptr, Mplus_FlashSelect);
++
++ return 0;
++}
++#endif
++
++static int doc_read(struct mtd_info *mtd, loff_t from, size_t len,
++ size_t *retlen, u_char *buf)
++{
++ /* Just a special case of doc_read_ecc */
++ return doc_read_ecc(mtd, from, len, retlen, buf, NULL, NULL);
++}
++
++static int doc_read_ecc(struct mtd_info *mtd, loff_t from, size_t len,
++ size_t *retlen, u_char *buf, u_char *eccbuf,
++ struct nand_oobinfo *oobsel)
++{
++ int ret, i;
++ volatile char dummy;
++ loff_t fofs;
++ unsigned char syndrome[6];
++ struct DiskOnChip *this = (struct DiskOnChip *)mtd->priv;
++ unsigned long docptr = this->virtadr;
++ struct Nand *mychip = &this->chips[from >> (this->chipshift)];
++
++ /* Don't allow read past end of device */
++ if (from >= this->totlen)
++ return -EINVAL;
++
++ /* Don't allow a single read to cross a 512-byte block boundary */
++ if (from + len > ((from | 0x1ff) + 1))
++ len = ((from | 0x1ff) + 1) - from;
++
++ DoC_CheckASIC(docptr);
++
++ /* Find the chip which is to be used and select it */
++ if (this->curfloor != mychip->floor) {
++ DoC_SelectFloor(docptr, mychip->floor);
++ DoC_SelectChip(docptr, mychip->chip);
++ } else if (this->curchip != mychip->chip) {
++ DoC_SelectChip(docptr, mychip->chip);
++ }
++ this->curfloor = mychip->floor;
++ this->curchip = mychip->chip;
++
++ /* Millennium Plus bus cycle sequence as per figure 2, section 2.4 */
++ WriteDOC((DOC_FLASH_CE | DOC_FLASH_WP), docptr, Mplus_FlashSelect);
++
++ /* Reset the chip, see Software Requirement 11.4 item 1. */
++ DoC_Command(docptr, NAND_CMD_RESET, 0);
++ DoC_WaitReady(docptr);
++
++ fofs = from;
++ DoC_Command(docptr, DoC_GetDataOffset(mtd, &fofs), 0);
++ DoC_Address(this, 3, fofs, 0, 0x00);
++ WriteDOC(0, docptr, Mplus_FlashControl);
++ DoC_WaitReady(docptr);
++
++ if (eccbuf) {
++ /* init the ECC engine, see Reed-Solomon EDC/ECC 11.1 .*/
++ WriteDOC(DOC_ECC_RESET, docptr, Mplus_ECCConf);
++ WriteDOC(DOC_ECC_EN, docptr, Mplus_ECCConf);
++ } else {
++ /* disable the ECC engine */
++ WriteDOC(DOC_ECC_RESET, docptr, Mplus_ECCConf);
++ }
++
++ /* Let the caller know we completed it */
++ *retlen = len;
++ ret = 0;
++
++ ReadDOC(docptr, Mplus_ReadPipeInit);
++ ReadDOC(docptr, Mplus_ReadPipeInit);
++
++ if (eccbuf) {
++ /* Read the data via the internal pipeline through CDSN IO
++ register, see Pipelined Read Operations 11.3 */
++ MemReadDOC(docptr, buf, len);
++
++ /* Read the ECC data following raw data */
++ MemReadDOC(docptr, eccbuf, 4);
++ eccbuf[4] = ReadDOC(docptr, Mplus_LastDataRead);
++ eccbuf[5] = ReadDOC(docptr, Mplus_LastDataRead);
++
++ /* Flush the pipeline */
++ dummy = ReadDOC(docptr, Mplus_ECCConf);
++ dummy = ReadDOC(docptr, Mplus_ECCConf);
++
++ /* Check the ECC Status */
++ if (ReadDOC(docptr, Mplus_ECCConf) & 0x80) {
++ int nb_errors;
++ /* There was an ECC error */
++#ifdef ECC_DEBUG
++ printk("DiskOnChip ECC Error: Read at %lx\n", (long)from);
++#endif
++ /* Read the ECC syndrom through the DiskOnChip ECC logic.
++ These syndrome will be all ZERO when there is no error */
++ for (i = 0; i < 6; i++)
++ syndrome[i] = ReadDOC(docptr, Mplus_ECCSyndrome0 + i);
++
++ nb_errors = doc_decode_ecc(buf, syndrome);
++#ifdef ECC_DEBUG
++ printk("ECC Errors corrected: %x\n", nb_errors);
++#endif
++ if (nb_errors < 0) {
++ /* We return error, but have actually done the read. Not that
++ this can be told to user-space, via sys_read(), but at least
++ MTD-aware stuff can know about it by checking *retlen */
++#ifdef ECC_DEBUG
++ printk("%s(%d): Millennium Plus ECC error (from=0x%x:\n",
++ __FILE__, __LINE__, (int)from);
++ printk(" syndrome= %02x:%02x:%02x:%02x:%02x:"
++ "%02x\n",
++ syndrome[0], syndrome[1], syndrome[2],
++ syndrome[3], syndrome[4], syndrome[5]);
++ printk(" eccbuf= %02x:%02x:%02x:%02x:%02x:"
++ "%02x\n",
++ eccbuf[0], eccbuf[1], eccbuf[2],
++ eccbuf[3], eccbuf[4], eccbuf[5]);
++#endif
++ ret = -EIO;
++ }
++ }
++
++#ifdef PSYCHO_DEBUG
++ printk("ECC DATA at %lx: %2.2X %2.2X %2.2X %2.2X %2.2X %2.2X\n",
++ (long)from, eccbuf[0], eccbuf[1], eccbuf[2], eccbuf[3],
++ eccbuf[4], eccbuf[5]);
++#endif
++
++ /* disable the ECC engine */
++ WriteDOC(DOC_ECC_DIS, docptr , Mplus_ECCConf);
++ } else {
++ /* Read the data via the internal pipeline through CDSN IO
++ register, see Pipelined Read Operations 11.3 */
++ MemReadDOC(docptr, buf, len-2);
++ buf[len-2] = ReadDOC(docptr, Mplus_LastDataRead);
++ buf[len-1] = ReadDOC(docptr, Mplus_LastDataRead);
++ }
++
++ /* Disable flash internally */
++ WriteDOC(0, docptr, Mplus_FlashSelect);
++
++ return ret;
++}
++
++static int doc_write(struct mtd_info *mtd, loff_t to, size_t len,
++ size_t *retlen, const u_char *buf)
++{
++ char eccbuf[6];
++ return doc_write_ecc(mtd, to, len, retlen, buf, eccbuf, NULL);
++}
++
++static int doc_write_ecc(struct mtd_info *mtd, loff_t to, size_t len,
++ size_t *retlen, const u_char *buf, u_char *eccbuf,
++ struct nand_oobinfo *oobsel)
++{
++ int i, before, ret = 0;
++ loff_t fto;
++ volatile char dummy;
++ struct DiskOnChip *this = (struct DiskOnChip *)mtd->priv;
++ unsigned long docptr = this->virtadr;
++ struct Nand *mychip = &this->chips[to >> (this->chipshift)];
++
++ /* Don't allow write past end of device */
++ if (to >= this->totlen)
++ return -EINVAL;
++
++ /* Don't allow writes which aren't exactly one block (512 bytes) */
++ if ((to & 0x1ff) || (len != 0x200))
++ return -EINVAL;
++
++ /* Determine position of OOB flags, before or after data */
++ before = (this->interleave && (to & 0x200));
++
++ DoC_CheckASIC(docptr);
++
++ /* Find the chip which is to be used and select it */
++ if (this->curfloor != mychip->floor) {
++ DoC_SelectFloor(docptr, mychip->floor);
++ DoC_SelectChip(docptr, mychip->chip);
++ } else if (this->curchip != mychip->chip) {
++ DoC_SelectChip(docptr, mychip->chip);
++ }
++ this->curfloor = mychip->floor;
++ this->curchip = mychip->chip;
++
++ /* Millennium Plus bus cycle sequence as per figure 2, section 2.4 */
++ WriteDOC(DOC_FLASH_CE, docptr, Mplus_FlashSelect);
++
++ /* Reset the chip, see Software Requirement 11.4 item 1. */
++ DoC_Command(docptr, NAND_CMD_RESET, 0);
++ DoC_WaitReady(docptr);
++
++ /* Set device to appropriate plane of flash */
++ fto = to;
++ WriteDOC(DoC_GetDataOffset(mtd, &fto), docptr, Mplus_FlashCmd);
++
++ /* On interleaved devices the flags for 2nd half 512 are before data */
++ if (eccbuf && before)
++ fto -= 2;
++
++ /* issue the Serial Data In command to initial the Page Program process */
++ DoC_Command(docptr, NAND_CMD_SEQIN, 0x00);
++ DoC_Address(this, 3, fto, 0x00, 0x00);
++
++ /* Disable the ECC engine */
++ WriteDOC(DOC_ECC_RESET, docptr, Mplus_ECCConf);
++
++ if (eccbuf) {
++ if (before) {
++ /* Write the block status BLOCK_USED (0x5555) */
++ WriteDOC(0x55, docptr, Mil_CDSN_IO);
++ WriteDOC(0x55, docptr, Mil_CDSN_IO);
++ }
++
++ /* init the ECC engine, see Reed-Solomon EDC/ECC 11.1 .*/
++ WriteDOC(DOC_ECC_EN | DOC_ECC_RW, docptr, Mplus_ECCConf);
++ }
++
++ MemWriteDOC(docptr, (unsigned char *) buf, len);
++
++ if (eccbuf) {
++ /* Write ECC data to flash, the ECC info is generated by
++ the DiskOnChip ECC logic see Reed-Solomon EDC/ECC 11.1 */
++ DoC_Delay(docptr, 3);
++
++ /* Read the ECC data through the DiskOnChip ECC logic */
++ for (i = 0; i < 6; i++)
++ eccbuf[i] = ReadDOC(docptr, Mplus_ECCSyndrome0 + i);
++
++ /* disable the ECC engine */
++ WriteDOC(DOC_ECC_DIS, docptr, Mplus_ECCConf);
++
++ /* Write the ECC data to flash */
++ MemWriteDOC(docptr, eccbuf, 6);
++
++ if (!before) {
++ /* Write the block status BLOCK_USED (0x5555) */
++ WriteDOC(0x55, docptr, Mil_CDSN_IO+6);
++ WriteDOC(0x55, docptr, Mil_CDSN_IO+7);
++ }
++
++#ifdef PSYCHO_DEBUG
++ printk("OOB data at %lx is %2.2X %2.2X %2.2X %2.2X %2.2X %2.2X\n",
++ (long) to, eccbuf[0], eccbuf[1], eccbuf[2], eccbuf[3],
++ eccbuf[4], eccbuf[5]);
++#endif
++ }
++
++ WriteDOC(0x00, docptr, Mplus_WritePipeTerm);
++ WriteDOC(0x00, docptr, Mplus_WritePipeTerm);
++
++ /* Commit the Page Program command and wait for ready
++ see Software Requirement 11.4 item 1.*/
++ DoC_Command(docptr, NAND_CMD_PAGEPROG, 0x00);
++ DoC_WaitReady(docptr);
++
++ /* Read the status of the flash device through CDSN IO register
++ see Software Requirement 11.4 item 5.*/
++ DoC_Command(docptr, NAND_CMD_STATUS, 0);
++ dummy = ReadDOC(docptr, Mplus_ReadPipeInit);
++ dummy = ReadDOC(docptr, Mplus_ReadPipeInit);
++ DoC_Delay(docptr, 2);
++ if ((dummy = ReadDOC(docptr, Mplus_LastDataRead)) & 1) {
++ printk("MTD: Error 0x%x programming at 0x%x\n", dummy, (int)to);
++ /* Error in programming
++ FIXME: implement Bad Block Replacement (in nftl.c ??) */
++ *retlen = 0;
++ ret = -EIO;
++ }
++ dummy = ReadDOC(docptr, Mplus_LastDataRead);
++
++ /* Disable flash internally */
++ WriteDOC(0, docptr, Mplus_FlashSelect);
++
++ /* Let the caller know we completed it */
++ *retlen = len;
++
++ return ret;
++}
++
++static int doc_read_oob(struct mtd_info *mtd, loff_t ofs, size_t len,
++ size_t *retlen, u_char *buf)
++{
++ loff_t fofs, base;
++ struct DiskOnChip *this = (struct DiskOnChip *)mtd->priv;
++ unsigned long docptr = this->virtadr;
++ struct Nand *mychip = &this->chips[ofs >> this->chipshift];
++ size_t i, size, got, want;
++
++ DoC_CheckASIC(docptr);
++
++ /* Find the chip which is to be used and select it */
++ if (this->curfloor != mychip->floor) {
++ DoC_SelectFloor(docptr, mychip->floor);
++ DoC_SelectChip(docptr, mychip->chip);
++ } else if (this->curchip != mychip->chip) {
++ DoC_SelectChip(docptr, mychip->chip);
++ }
++ this->curfloor = mychip->floor;
++ this->curchip = mychip->chip;
++
++ /* Millennium Plus bus cycle sequence as per figure 2, section 2.4 */
++ WriteDOC((DOC_FLASH_CE | DOC_FLASH_WP), docptr, Mplus_FlashSelect);
++
++ /* disable the ECC engine */
++ WriteDOC(DOC_ECC_RESET, docptr, Mplus_ECCConf);
++ DoC_WaitReady(docptr);
++
++ /* Maximum of 16 bytes in the OOB region, so limit read to that */
++ if (len > 16)
++ len = 16;
++ got = 0;
++ want = len;
++
++ for (i = 0; ((i < 3) && (want > 0)); i++) {
++ /* Figure out which region we are accessing... */
++ fofs = ofs;
++ base = ofs & 0xf;
++ if (!this->interleave) {
++ DoC_Command(docptr, NAND_CMD_READOOB, 0);
++ size = 16 - base;
++ } else if (base < 6) {
++ DoC_Command(docptr, DoC_GetECCOffset(mtd, &fofs), 0);
++ size = 6 - base;
++ } else if (base < 8) {
++ DoC_Command(docptr, DoC_GetFlagsOffset(mtd, &fofs), 0);
++ size = 8 - base;
++ } else {
++ DoC_Command(docptr, DoC_GetHdrOffset(mtd, &fofs), 0);
++ size = 16 - base;
++ }
++ if (size > want)
++ size = want;
++
++ /* Issue read command */
++ DoC_Address(this, 3, fofs, 0, 0x00);
++ WriteDOC(0, docptr, Mplus_FlashControl);
++ DoC_WaitReady(docptr);
++
++ ReadDOC(docptr, Mplus_ReadPipeInit);
++ ReadDOC(docptr, Mplus_ReadPipeInit);
++ MemReadDOC(docptr, &buf[got], size - 2);
++ buf[got + size - 2] = ReadDOC(docptr, Mplus_LastDataRead);
++ buf[got + size - 1] = ReadDOC(docptr, Mplus_LastDataRead);
++
++ ofs += size;
++ got += size;
++ want -= size;
++ }
++
++ /* Disable flash internally */
++ WriteDOC(0, docptr, Mplus_FlashSelect);
++
++ *retlen = len;
++ return 0;
++}
++
++static int doc_write_oob(struct mtd_info *mtd, loff_t ofs, size_t len,
++ size_t *retlen, const u_char *buf)
++{
++ volatile char dummy;
++ loff_t fofs, base;
++ struct DiskOnChip *this = (struct DiskOnChip *)mtd->priv;
++ unsigned long docptr = this->virtadr;
++ struct Nand *mychip = &this->chips[ofs >> this->chipshift];
++ size_t i, size, got, want;
++ int ret = 0;
++
++ DoC_CheckASIC(docptr);
++
++ /* Find the chip which is to be used and select it */
++ if (this->curfloor != mychip->floor) {
++ DoC_SelectFloor(docptr, mychip->floor);
++ DoC_SelectChip(docptr, mychip->chip);
++ } else if (this->curchip != mychip->chip) {
++ DoC_SelectChip(docptr, mychip->chip);
++ }
++ this->curfloor = mychip->floor;
++ this->curchip = mychip->chip;
++
++ /* Millennium Plus bus cycle sequence as per figure 2, section 2.4 */
++ WriteDOC(DOC_FLASH_CE, docptr, Mplus_FlashSelect);
++
++
++ /* Maximum of 16 bytes in the OOB region, so limit write to that */
++ if (len > 16)
++ len = 16;
++ got = 0;
++ want = len;
++
++ for (i = 0; ((i < 3) && (want > 0)); i++) {
++ /* Reset the chip, see Software Requirement 11.4 item 1. */
++ DoC_Command(docptr, NAND_CMD_RESET, 0);
++ DoC_WaitReady(docptr);
++
++ /* Figure out which region we are accessing... */
++ fofs = ofs;
++ base = ofs & 0x0f;
++ if (!this->interleave) {
++ WriteDOC(NAND_CMD_READOOB, docptr, Mplus_FlashCmd);
++ size = 16 - base;
++ } else if (base < 6) {
++ WriteDOC(DoC_GetECCOffset(mtd, &fofs), docptr, Mplus_FlashCmd);
++ size = 6 - base;
++ } else if (base < 8) {
++ WriteDOC(DoC_GetFlagsOffset(mtd, &fofs), docptr, Mplus_FlashCmd);
++ size = 8 - base;
++ } else {
++ WriteDOC(DoC_GetHdrOffset(mtd, &fofs), docptr, Mplus_FlashCmd);
++ size = 16 - base;
++ }
++ if (size > want)
++ size = want;
++
++ /* Issue the Serial Data In command to initial the Page Program process */
++ DoC_Command(docptr, NAND_CMD_SEQIN, 0x00);
++ DoC_Address(this, 3, fofs, 0, 0x00);
++
++ /* Disable the ECC engine */
++ WriteDOC(DOC_ECC_RESET, docptr, Mplus_ECCConf);
++
++ /* Write the data via the internal pipeline through CDSN IO
++ register, see Pipelined Write Operations 11.2 */
++ MemWriteDOC(docptr, (unsigned char *) &buf[got], size);
++ WriteDOC(0x00, docptr, Mplus_WritePipeTerm);
++ WriteDOC(0x00, docptr, Mplus_WritePipeTerm);
++
++ /* Commit the Page Program command and wait for ready
++ see Software Requirement 11.4 item 1.*/
++ DoC_Command(docptr, NAND_CMD_PAGEPROG, 0x00);
++ DoC_WaitReady(docptr);
++
++ /* Read the status of the flash device through CDSN IO register
++ see Software Requirement 11.4 item 5.*/
++ DoC_Command(docptr, NAND_CMD_STATUS, 0x00);
++ dummy = ReadDOC(docptr, Mplus_ReadPipeInit);
++ dummy = ReadDOC(docptr, Mplus_ReadPipeInit);
++ DoC_Delay(docptr, 2);
++ if ((dummy = ReadDOC(docptr, Mplus_LastDataRead)) & 1) {
++ printk("MTD: Error 0x%x programming oob at 0x%x\n",
++ dummy, (int)ofs);
++ /* FIXME: implement Bad Block Replacement */
++ *retlen = 0;
++ ret = -EIO;
++ }
++ dummy = ReadDOC(docptr, Mplus_LastDataRead);
++
++ ofs += size;
++ got += size;
++ want -= size;
++ }
++
++ /* Disable flash internally */
++ WriteDOC(0, docptr, Mplus_FlashSelect);
++
++ *retlen = len;
++ return ret;
++}
++
++int doc_erase(struct mtd_info *mtd, struct erase_info *instr)
++{
++ volatile char dummy;
++ struct DiskOnChip *this = (struct DiskOnChip *)mtd->priv;
++ __u32 ofs = instr->addr;
++ __u32 len = instr->len;
++ unsigned long docptr = this->virtadr;
++ struct Nand *mychip = &this->chips[ofs >> this->chipshift];
++
++ DoC_CheckASIC(docptr);
++
++ if (len != mtd->erasesize)
++ printk(KERN_WARNING "MTD: Erase not right size (%x != %x)n",
++ len, mtd->erasesize);
++
++ /* Find the chip which is to be used and select it */
++ if (this->curfloor != mychip->floor) {
++ DoC_SelectFloor(docptr, mychip->floor);
++ DoC_SelectChip(docptr, mychip->chip);
++ } else if (this->curchip != mychip->chip) {
++ DoC_SelectChip(docptr, mychip->chip);
++ }
++ this->curfloor = mychip->floor;
++ this->curchip = mychip->chip;
++
++ instr->state = MTD_ERASE_PENDING;
++
++ /* Millennium Plus bus cycle sequence as per figure 2, section 2.4 */
++ WriteDOC(DOC_FLASH_CE, docptr, Mplus_FlashSelect);
++
++ DoC_Command(docptr, NAND_CMD_RESET, 0x00);
++ DoC_WaitReady(docptr);
++
++ DoC_Command(docptr, NAND_CMD_ERASE1, 0);
++ DoC_Address(this, 2, ofs, 0, 0x00);
++ DoC_Command(docptr, NAND_CMD_ERASE2, 0);
++ DoC_WaitReady(docptr);
++ instr->state = MTD_ERASING;
++
++ /* Read the status of the flash device through CDSN IO register
++ see Software Requirement 11.4 item 5. */
++ DoC_Command(docptr, NAND_CMD_STATUS, 0);
++ dummy = ReadDOC(docptr, Mplus_ReadPipeInit);
++ dummy = ReadDOC(docptr, Mplus_ReadPipeInit);
++ if ((dummy = ReadDOC(docptr, Mplus_LastDataRead)) & 1) {
++ printk("MTD: Error 0x%x erasing at 0x%x\n", dummy, ofs);
++ /* FIXME: implement Bad Block Replacement (in nftl.c ??) */
++ instr->state = MTD_ERASE_FAILED;
++ } else {
++ instr->state = MTD_ERASE_DONE;
++ }
++ dummy = ReadDOC(docptr, Mplus_LastDataRead);
++
++ /* Disable flash internally */
++ WriteDOC(0, docptr, Mplus_FlashSelect);
++
++ if (instr->callback)
++ instr->callback(instr);
++
++ return 0;
++}
++
++/****************************************************************************
++ *
++ * Module stuff
++ *
++ ****************************************************************************/
++
++int __init init_doc2001plus(void)
++{
++ inter_module_register(im_name, THIS_MODULE, &DoCMilPlus_init);
++ return 0;
++}
++
++static void __exit cleanup_doc2001plus(void)
++{
++ struct mtd_info *mtd;
++ struct DiskOnChip *this;
++
++ while ((mtd=docmilpluslist)) {
++ this = (struct DiskOnChip *)mtd->priv;
++ docmilpluslist = this->nextdoc;
++
++ del_mtd_device(mtd);
++
++ iounmap((void *)this->virtadr);
++ kfree(this->chips);
++ kfree(mtd);
++ }
++ inter_module_unregister(im_name);
++}
++
++module_exit(cleanup_doc2001plus);
++module_init(init_doc2001plus);
++
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("Greg Ungerer <gerg@snapgear.com> et al.");
++MODULE_DESCRIPTION("Driver for DiskOnChip Millennium Plus");
+diff -Nurb linux-mips-2.4.27/drivers/mtd/devices/docecc.c linux/drivers/mtd/devices/docecc.c
+--- linux-mips-2.4.27/drivers/mtd/devices/docecc.c 2001-11-05 21:15:52.000000000 +0100
++++ linux/drivers/mtd/devices/docecc.c 2004-11-19 10:25:11.851207088 +0100
+@@ -7,7 +7,7 @@
+ * Author: Fabrice Bellard (fabrice.bellard@netgem.com)
+ * Copyright (C) 2000 Netgem S.A.
+ *
+- * $Id: docecc.c,v 1.4 2001/10/02 15:05:13 dwmw2 Exp $
++ * $Id: docecc.c,v 1.5 2003/05/21 15:15:06 dwmw2 Exp $
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+@@ -519,6 +519,8 @@
+ return nb_errors;
+ }
+
++EXPORT_SYMBOL_GPL(doc_decode_ecc);
++
+ MODULE_LICENSE("GPL");
+ MODULE_AUTHOR("Fabrice Bellard <fabrice.bellard@netgem.com>");
+ MODULE_DESCRIPTION("ECC code for correcting errors detected by DiskOnChip 2000 and Millennium ECC hardware");
+diff -Nurb linux-mips-2.4.27/drivers/mtd/devices/docprobe.c linux/drivers/mtd/devices/docprobe.c
+--- linux-mips-2.4.27/drivers/mtd/devices/docprobe.c 2003-06-16 01:42:21.000000000 +0200
++++ linux/drivers/mtd/devices/docprobe.c 2004-11-19 10:25:11.853206784 +0100
+@@ -4,7 +4,7 @@
+ /* (C) 1999 Machine Vision Holdings, Inc. */
+ /* (C) 1999-2003 David Woodhouse <dwmw2@infradead.org> */
+
+-/* $Id: docprobe.c,v 1.33 2003/01/24 14:02:47 dwmw2 Exp $ */
++/* $Id: docprobe.c,v 1.41 2003/12/03 10:19:57 dwmw2 Exp $ */
+
+
+
+@@ -31,14 +31,12 @@
+ /* DOC_SINGLE_DRIVER:
+ Millennium driver has been merged into DOC2000 driver.
+
+- The newly-merged driver doesn't appear to work for writing. It's the
+- same with the DiskOnChip 2000 and the Millennium. If you have a
+- Millennium and you want write support to work, remove the definition
+- of DOC_SINGLE_DRIVER below to use the old doc2001-specific driver.
+-
+- Otherwise, it's left on in the hope that it'll annoy someone with
+- a Millennium enough that they go through and work out what the
+- difference is :)
++ The old Millennium-only driver has been retained just in case there
++ are problems with the new code. If the combined driver doesn't work
++ for you, you can try the old one by undefining DOC_SINGLE_DRIVER
++ below and also enabling it in your configuration. If this fixes the
++ problems, please send a report to the MTD mailing list at
++ <linux-mtd@lists.infradead.org>.
+ */
+ #define DOC_SINGLE_DRIVER
+
+@@ -47,18 +45,15 @@
+ #include <linux/module.h>
+ #include <asm/errno.h>
+ #include <asm/io.h>
+-#include <asm/uaccess.h>
+-#include <linux/miscdevice.h>
+-#include <linux/pci.h>
+ #include <linux/delay.h>
+ #include <linux/slab.h>
+-#include <linux/sched.h>
+ #include <linux/init.h>
+ #include <linux/types.h>
+
+ #include <linux/mtd/mtd.h>
+ #include <linux/mtd/nand.h>
+ #include <linux/mtd/doc2000.h>
++#include <linux/mtd/compatmac.h>
+
+ /* Where to look for the devices? */
+ #ifndef CONFIG_MTD_DOCPROBE_ADDRESS
+@@ -92,17 +87,17 @@
+ 0xff000000,
+ #elif defined(CONFIG_MOMENCO_OCELOT_G) || defined (CONFIG_MOMENCO_OCELOT_C)
+ 0xff000000,
+-#else
++##else
+ #warning Unknown architecture for DiskOnChip. No default probe locations defined
+ #endif
+- 0 };
++ 0xffffffff };
+
+ /* doccheck: Probe a given memory window to see if there's a DiskOnChip present */
+
+ static inline int __init doccheck(unsigned long potential, unsigned long physadr)
+ {
+ unsigned long window=potential;
+- unsigned char tmp, ChipID;
++ unsigned char tmp, tmpb, tmpc, ChipID;
+ #ifndef DOC_PASSIVE_PROBE
+ unsigned char tmp2;
+ #endif
+@@ -140,26 +135,80 @@
+ window, DOCControl);
+ #endif /* !DOC_PASSIVE_PROBE */
+
++ /* We need to read the ChipID register four times. For some
++ newer DiskOnChip 2000 units, the first three reads will
++ return the DiskOnChip Millennium ident. Don't ask. */
+ ChipID = ReadDOC(window, ChipID);
+
+ switch (ChipID) {
+ case DOC_ChipID_Doc2k:
+ /* Check the TOGGLE bit in the ECC register */
+ tmp = ReadDOC(window, 2k_ECCStatus) & DOC_TOGGLE_BIT;
+- if ((ReadDOC(window, 2k_ECCStatus) & DOC_TOGGLE_BIT) != tmp)
++ tmpb = ReadDOC(window, 2k_ECCStatus) & DOC_TOGGLE_BIT;
++ tmpc = ReadDOC(window, 2k_ECCStatus) & DOC_TOGGLE_BIT;
++ if (tmp != tmpb && tmp == tmpc)
+ return ChipID;
+ break;
+
+ case DOC_ChipID_DocMil:
++ /* Check for the new 2000 with Millennium ASIC */
++ ReadDOC(window, ChipID);
++ ReadDOC(window, ChipID);
++ if (ReadDOC(window, ChipID) != DOC_ChipID_DocMil)
++ ChipID = DOC_ChipID_Doc2kTSOP;
++
+ /* Check the TOGGLE bit in the ECC register */
+ tmp = ReadDOC(window, ECCConf) & DOC_TOGGLE_BIT;
+- if ((ReadDOC(window, ECCConf) & DOC_TOGGLE_BIT) != tmp)
++ tmpb = ReadDOC(window, ECCConf) & DOC_TOGGLE_BIT;
++ tmpc = ReadDOC(window, ECCConf) & DOC_TOGGLE_BIT;
++ if (tmp != tmpb && tmp == tmpc)
++ return ChipID;
++ break;
++
++ case DOC_ChipID_DocMilPlus16:
++ case DOC_ChipID_DocMilPlus32:
++ case 0:
++ /* Possible Millennium+, need to do more checks */
++#ifndef DOC_PASSIVE_PROBE
++ /* Possibly release from power down mode */
++ for (tmp = 0; (tmp < 4); tmp++)
++ ReadDOC(window, Mplus_Power);
++
++ /* Reset the DiskOnChip ASIC */
++ tmp = DOC_MODE_RESET | DOC_MODE_MDWREN | DOC_MODE_RST_LAT |
++ DOC_MODE_BDECT;
++ WriteDOC(tmp, window, Mplus_DOCControl);
++ WriteDOC(~tmp, window, Mplus_CtrlConfirm);
++
++ mdelay(1);
++ /* Enable the DiskOnChip ASIC */
++ tmp = DOC_MODE_NORMAL | DOC_MODE_MDWREN | DOC_MODE_RST_LAT |
++ DOC_MODE_BDECT;
++ WriteDOC(tmp, window, Mplus_DOCControl);
++ WriteDOC(~tmp, window, Mplus_CtrlConfirm);
++ mdelay(1);
++#endif /* !DOC_PASSIVE_PROBE */
++
++ ChipID = ReadDOC(window, ChipID);
++
++ switch (ChipID) {
++ case DOC_ChipID_DocMilPlus16:
++ case DOC_ChipID_DocMilPlus32:
++ /* Check the TOGGLE bit in the toggle register */
++ tmp = ReadDOC(window, Mplus_Toggle) & DOC_TOGGLE_BIT;
++ tmpb = ReadDOC(window, Mplus_Toggle) & DOC_TOGGLE_BIT;
++ tmpc = ReadDOC(window, Mplus_Toggle) & DOC_TOGGLE_BIT;
++ if (tmp != tmpb && tmp == tmpc)
+ return ChipID;
++ default:
+ break;
++ }
++ /* FALL TRHU */
+
+ default:
+-#ifndef CONFIG_MTD_DOCPROBE_55AA
+- printk(KERN_WARNING "Possible DiskOnChip with unknown ChipID %2.2X found at 0x%lx\n",
++
++#ifdef CONFIG_MTD_DOCPROBE_55AA
++ printk(KERN_DEBUG "Possible DiskOnChip with unknown ChipID %2.2X found at 0x%lx\n",
+ ChipID, physadr);
+ #endif
+ #ifndef DOC_PASSIVE_PROBE
+@@ -200,6 +249,12 @@
+ return;
+
+ if ((ChipID = doccheck(docptr, physadr))) {
++ if (ChipID == DOC_ChipID_Doc2kTSOP) {
++ /* Remove this at your own peril. The hardware driver works but nothing prevents you from erasing bad blocks */
++ printk(KERN_NOTICE "Refusing to drive DiskOnChip 2000 TSOP until Bad Block Table is correctly supported by INFTL\n");
++ iounmap((void *)docptr);
++ return;
++ }
+ docfound = 1;
+ mtd = kmalloc(sizeof(struct DiskOnChip) + sizeof(struct mtd_info), GFP_KERNEL);
+
+@@ -221,6 +276,12 @@
+ sprintf(namebuf, "with ChipID %2.2X", ChipID);
+
+ switch(ChipID) {
++ case DOC_ChipID_Doc2kTSOP:
++ name="2000 TSOP";
++ im_funcname = "DoC2k_init";
++ im_modname = "doc2000";
++ break;
++
+ case DOC_ChipID_Doc2k:
+ name="2000";
+ im_funcname = "DoC2k_init";
+@@ -237,6 +298,13 @@
+ im_modname = "doc2001";
+ #endif /* DOC_SINGLE_DRIVER */
+ break;
++
++ case DOC_ChipID_DocMilPlus16:
++ case DOC_ChipID_DocMilPlus32:
++ name="MillenniumPlus";
++ im_funcname = "DoCMilPlus_init";
++ im_modname = "doc2001plus";
++ break;
+ }
+
+ if (im_funcname)
+@@ -248,6 +316,7 @@
+ return;
+ }
+ printk(KERN_NOTICE "Cannot find driver for DiskOnChip %s at 0x%lX\n", name, physadr);
++ kfree(mtd);
+ }
+ iounmap((void *)docptr);
+ }
+@@ -267,7 +336,7 @@
+ printk(KERN_INFO "Using configured DiskOnChip probe address 0x%lx\n", doc_config_location);
+ DoC_Probe(doc_config_location);
+ } else {
+- for (i=0; doc_locations[i]; i++) {
++ for (i=0; (doc_locations[i] != 0xffffffff); i++) {
+ DoC_Probe(doc_locations[i]);
+ }
+ }
+@@ -275,11 +344,7 @@
+ found, so the user knows we at least tried. */
+ if (!docfound)
+ printk(KERN_INFO "No recognised DiskOnChip devices found\n");
+- /* So it looks like we've been used and we get unloaded */
+- MOD_INC_USE_COUNT;
+- MOD_DEC_USE_COUNT;
+- return 0;
+-
++ return -EAGAIN;
+ }
+
+ module_init(init_doc);
+diff -Nurb linux-mips-2.4.27/drivers/mtd/devices/lart.c linux/drivers/mtd/devices/lart.c
+--- linux-mips-2.4.27/drivers/mtd/devices/lart.c 2001-11-05 21:15:52.000000000 +0100
++++ linux/drivers/mtd/devices/lart.c 2004-11-19 10:25:11.854206632 +0100
+@@ -2,7 +2,7 @@
+ /*
+ * MTD driver for the 28F160F3 Flash Memory (non-CFI) on LART.
+ *
+- * $Id: lart.c,v 1.2 2001/10/02 15:05:13 dwmw2 Exp $
++ * $Id: lart.c,v 1.5 2003/05/20 21:03:07 dwmw2 Exp $
+ *
+ * Author: Abraham vd Merwe <abraham@2d3d.co.za>
+ *
+@@ -584,45 +584,40 @@
+
+ static struct mtd_info mtd;
+
+-static struct mtd_erase_region_info erase_regions[] =
+-{
++static struct mtd_erase_region_info erase_regions[] = {
+ /* parameter blocks */
+ {
+- offset: 0x00000000,
+- erasesize: FLASH_BLOCKSIZE_PARAM,
+- numblocks: FLASH_NUMBLOCKS_16m_PARAM
++ .offset = 0x00000000,
++ .erasesize = FLASH_BLOCKSIZE_PARAM,
++ .numblocks = FLASH_NUMBLOCKS_16m_PARAM,
+ },
+ /* main blocks */
+ {
+- offset: FLASH_BLOCKSIZE_PARAM * FLASH_NUMBLOCKS_16m_PARAM,
+- erasesize: FLASH_BLOCKSIZE_MAIN,
+- numblocks: FLASH_NUMBLOCKS_16m_MAIN
++ .offset = FLASH_BLOCKSIZE_PARAM * FLASH_NUMBLOCKS_16m_PARAM,
++ .erasesize = FLASH_BLOCKSIZE_MAIN,
++ .numblocks = FLASH_NUMBLOCKS_16m_MAIN,
+ }
+ };
+
+ #ifdef HAVE_PARTITIONS
+-static struct mtd_partition lart_partitions[] =
+-{
++static struct mtd_partition lart_partitions[] = {
+ /* blob */
+ {
+- name: "blob",
+- offset: BLOB_START,
+- size: BLOB_LEN,
+- mask_flags: 0
++ .name = "blob",
++ .offset = BLOB_START,
++ .size = BLOB_LEN,
+ },
+ /* kernel */
+ {
+- name: "kernel",
+- offset: KERNEL_START, /* MTDPART_OFS_APPEND */
+- size: KERNEL_LEN,
+- mask_flags: 0
++ .name = "kernel",
++ .offset = KERNEL_START, /* MTDPART_OFS_APPEND */
++ .size = KERNEL_LEN,
+ },
+ /* initial ramdisk / file system */
+ {
+- name: "file system",
+- offset: INITRD_START, /* MTDPART_OFS_APPEND */
+- size: INITRD_LEN, /* MTDPART_SIZ_FULL */
+- mask_flags: 0
++ .name = "file system",
++ .offset = INITRD_START, /* MTDPART_OFS_APPEND */
++ .size = INITRD_LEN, /* MTDPART_SIZ_FULL */
+ }
+ };
+ #endif
+@@ -646,10 +641,10 @@
+ mtd.erasesize = FLASH_BLOCKSIZE_MAIN;
+ mtd.numeraseregions = NB_OF (erase_regions);
+ mtd.eraseregions = erase_regions;
+- mtd.module = THIS_MODULE;
+ mtd.erase = flash_erase;
+ mtd.read = flash_read;
+ mtd.write = flash_write;
++ mtd.owner = THIS_MODULE;
+
+ #ifdef LART_DEBUG
+ printk (KERN_DEBUG
+diff -Nurb linux-mips-2.4.27/drivers/mtd/devices/ms02-nv.c linux/drivers/mtd/devices/ms02-nv.c
+--- linux-mips-2.4.27/drivers/mtd/devices/ms02-nv.c 2004-07-30 12:22:40.000000000 +0200
++++ linux/drivers/mtd/devices/ms02-nv.c 2004-11-19 10:25:11.856206328 +0100
+@@ -6,7 +6,7 @@
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ *
+- * $Id: ms02-nv.c,v 1.2 2003/01/24 14:05:17 dwmw2 Exp $
++ * $Id: ms02-nv.c,v 1.6 2003/08/19 09:25:36 dwmw2 Exp $
+ */
+
+ #include <linux/init.h>
+@@ -31,7 +31,7 @@
+ static char version[] __initdata =
+ "ms02-nv.c: v.1.0.0 13 Aug 2001 Maciej W. Rozycki.\n";
+
+-MODULE_AUTHOR("Maciej W. Rozycki <macro@linux-mips.org>");
++MODULE_AUTHOR("Maciej W. Rozycki <macro@ds2.pg.gda.pl>");
+ MODULE_DESCRIPTION("DEC MS02-NV NVRAM module driver");
+ MODULE_LICENSE("GPL");
+
+@@ -222,7 +222,7 @@
+ mtd->flags = MTD_CAP_RAM | MTD_XIP;
+ mtd->size = fixsize;
+ mtd->name = (char *)ms02nv_name;
+- mtd->module = THIS_MODULE;
++ mtd->owner = THIS_MODULE;
+ mtd->read = ms02nv_read;
+ mtd->write = ms02nv_write;
+
+diff -Nurb linux-mips-2.4.27/drivers/mtd/devices/mtdram.c linux/drivers/mtd/devices/mtdram.c
+--- linux-mips-2.4.27/drivers/mtd/devices/mtdram.c 2003-02-26 01:53:49.000000000 +0100
++++ linux/drivers/mtd/devices/mtdram.c 2004-11-19 10:25:11.859205872 +0100
+@@ -1,6 +1,6 @@
+ /*
+ * mtdram - a test mtd device
+- * $Id: mtdram.c,v 1.29 2002/10/21 13:40:06 jocke Exp $
++ * $Id: mtdram.c,v 1.32 2003/05/21 15:15:07 dwmw2 Exp $
+ * Author: Alexander Larsson <alex@cendio.se>
+ *
+ * Copyright (c) 1999 Alexander Larsson <alex@cendio.se>
+@@ -13,6 +13,8 @@
+ #include <linux/module.h>
+ #include <linux/slab.h>
+ #include <linux/ioport.h>
++#include <linux/vmalloc.h>
++#include <linux/init.h>
+ #include <linux/mtd/compatmac.h>
+ #include <linux/mtd/mtd.h>
+
+@@ -136,7 +138,7 @@
+ mtd->erasesize = MTDRAM_ERASE_SIZE;
+ mtd->priv = mapped_address;
+
+- mtd->module = THIS_MODULE;
++ mtd->owner = THIS_MODULE;
+ mtd->erase = ram_erase;
+ mtd->point = ram_point;
+ mtd->unpoint = ram_unpoint;
+diff -Nurb linux-mips-2.4.27/drivers/mtd/devices/phram.c linux/drivers/mtd/devices/phram.c
+--- linux-mips-2.4.27/drivers/mtd/devices/phram.c 1970-01-01 01:00:00.000000000 +0100
++++ linux/drivers/mtd/devices/phram.c 2004-11-19 10:25:11.860205720 +0100
+@@ -0,0 +1,362 @@
++/**
++ *
++ * $Id: phram.c,v 1.1 2003/08/21 17:52:30 joern Exp $
++ *
++ * Copyright (c) Jochen Schaeuble <psionic@psionic.de>
++ * 07/2003 rewritten by Joern Engel <joern@wh.fh-wedel.de>
++ *
++ * DISCLAIMER: This driver makes use of Rusty's excellent module code,
++ * so it will not work for 2.4 without changes and it wont work for 2.4
++ * as a module without major changes. Oh well!
++ *
++ * Usage:
++ *
++ * one commend line parameter per device, each in the form:
++ * phram=<name>,<start>,<len>
++ * <name> may be up to 63 characters.
++ * <start> and <len> can be octal, decimal or hexadecimal. If followed
++ * by "k", "M" or "G", the numbers will be interpreted as kilo, mega or
++ * gigabytes.
++ *
++ */
++
++#include <asm/io.h>
++#include <linux/init.h>
++#include <linux/kernel.h>
++#include <linux/list.h>
++#include <linux/module.h>
++#include <linux/moduleparam.h>
++#include <linux/mtd/mtd.h>
++
++#define ERROR(fmt, args...) printk(KERN_ERR "phram: " fmt , ## args)
++
++struct phram_mtd_list {
++ struct list_head list;
++ struct mtd_info *mtdinfo;
++};
++
++static LIST_HEAD(phram_list);
++
++
++
++int phram_erase(struct mtd_info *mtd, struct erase_info *instr)
++{
++ u_char *start = (u_char *)mtd->priv;
++
++ if (instr->addr + instr->len > mtd->size)
++ return -EINVAL;
++
++ memset(start + instr->addr, 0xff, instr->len);
++
++ /* This'll catch a few races. Free the thing before returning :)
++ * I don't feel at all ashamed. This kind of thing is possible anyway
++ * with flash, but unlikely.
++ */
++
++ instr->state = MTD_ERASE_DONE;
++
++ if (instr->callback)
++ (*(instr->callback))(instr);
++ else
++ kfree(instr);
++
++ return 0;
++}
++
++int phram_point(struct mtd_info *mtd, loff_t from, size_t len,
++ size_t *retlen, u_char **mtdbuf)
++{
++ u_char *start = (u_char *)mtd->priv;
++
++ if (from + len > mtd->size)
++ return -EINVAL;
++
++ *mtdbuf = start + from;
++ *retlen = len;
++ return 0;
++}
++
++void phram_unpoint(struct mtd_info *mtd, u_char *addr, loff_t from, size_t len)
++{
++}
++
++int phram_read(struct mtd_info *mtd, loff_t from, size_t len,
++ size_t *retlen, u_char *buf)
++{
++ u_char *start = (u_char *)mtd->priv;
++
++ if (from + len > mtd->size)
++ return -EINVAL;
++
++ memcpy(buf, start + from, len);
++
++ *retlen = len;
++ return 0;
++}
++
++int phram_write(struct mtd_info *mtd, loff_t to, size_t len,
++ size_t *retlen, const u_char *buf)
++{
++ u_char *start = (u_char *)mtd->priv;
++
++ if (to + len > mtd->size)
++ return -EINVAL;
++
++ memcpy(start + to, buf, len);
++
++ *retlen = len;
++ return 0;
++}
++
++
++
++static void unregister_devices(void)
++{
++ struct phram_mtd_list *this;
++
++ list_for_each_entry(this, &phram_list, list) {
++ del_mtd_device(this->mtdinfo);
++ iounmap(this->mtdinfo->priv);
++ kfree(this->mtdinfo);
++ kfree(this);
++ }
++}
++
++static int register_device(char *name, unsigned long start, unsigned long len)
++{
++ struct phram_mtd_list *new;
++ int ret = -ENOMEM;
++
++ new = kmalloc(sizeof(*new), GFP_KERNEL);
++ if (!new)
++ goto out0;
++
++ new->mtdinfo = kmalloc(sizeof(struct mtd_info), GFP_KERNEL);
++ if (!new->mtdinfo)
++ goto out1;
++
++ memset(new->mtdinfo, 0, sizeof(struct mtd_info));
++
++ ret = -EIO;
++ new->mtdinfo->priv = ioremap(start, len);
++ if (!new->mtdinfo->priv) {
++ ERROR("ioremap failed\n");
++ goto out2;
++ }
++
++
++ new->mtdinfo->name = name;
++ new->mtdinfo->size = len;
++ new->mtdinfo->flags = MTD_CAP_RAM | MTD_ERASEABLE | MTD_VOLATILE;
++ new->mtdinfo->erase = phram_erase;
++ new->mtdinfo->point = phram_point;
++ new->mtdinfo->unpoint = phram_unpoint;
++ new->mtdinfo->read = phram_read;
++ new->mtdinfo->write = phram_write;
++ new->mtdinfo->owner = THIS_MODULE;
++ new->mtdinfo->type = MTD_RAM;
++ new->mtdinfo->erasesize = 0x0;
++
++ ret = -EAGAIN;
++ if (add_mtd_device(new->mtdinfo)) {
++ ERROR("Failed to register new device\n");
++ goto out3;
++ }
++
++ list_add_tail(&new->list, &phram_list);
++ return 0;
++
++out3:
++ iounmap(new->mtdinfo->priv);
++out2:
++ kfree(new->mtdinfo);
++out1:
++ kfree(new);
++out0:
++ return ret;
++}
++
++static int ustrtoul(const char *cp, char **endp, unsigned int base)
++{
++ unsigned long result = simple_strtoul(cp, endp, base);
++
++ switch (**endp) {
++ case 'G':
++ result *= 1024;
++ case 'M':
++ result *= 1024;
++ case 'k':
++ result *= 1024;
++ endp++;
++ }
++ return result;
++}
++
++static int parse_num32(uint32_t *num32, const char *token)
++{
++ char *endp;
++ unsigned long n;
++
++ n = ustrtoul(token, &endp, 0);
++ if (*endp)
++ return -EINVAL;
++
++ *num32 = n;
++ return 0;
++}
++
++static int parse_name(char **pname, const char *token)
++{
++ size_t len;
++ char *name;
++
++ len = strlen(token) + 1;
++ if (len > 64)
++ return -ENOSPC;
++
++ name = kmalloc(len, GFP_KERNEL);
++ if (!name)
++ return -ENOMEM;
++
++ strcpy(name, token);
++
++ *pname = name;
++ return 0;
++}
++
++#define parse_err(fmt, args...) do { \
++ ERROR(fmt , ## args); \
++ return 0; \
++} while (0)
++
++static int phram_setup(const char *val, struct kernel_param *kp)
++{
++ char buf[64+12+12], *str = buf;
++ char *token[3];
++ char *name;
++ uint32_t start;
++ uint32_t len;
++ int i, ret;
++
++ if (strnlen(val, sizeof(str)) >= sizeof(str))
++ parse_err("parameter too long\n");
++
++ strcpy(str, val);
++
++ for (i=0; i<3; i++)
++ token[i] = strsep(&str, ",");
++
++ if (str)
++ parse_err("too many arguments\n");
++
++ if (!token[2])
++ parse_err("not enough arguments\n");
++
++ ret = parse_name(&name, token[0]);
++ if (ret == -ENOMEM)
++ parse_err("out of memory\n");
++ if (ret == -ENOSPC)
++ parse_err("name too long\n");
++ if (ret)
++ return 0;
++
++ ret = parse_num32(&start, token[1]);
++ if (ret)
++ parse_err("illegal start address\n");
++
++ ret = parse_num32(&len, token[2]);
++ if (ret)
++ parse_err("illegal device length\n");
++
++ register_device(name, start, len);
++
++ return 0;
++}
++
++module_param_call(phram, phram_setup, NULL, NULL, 000);
++MODULE_PARM_DESC(phram, "Memory region to map. \"map=<name>,<start><length>\"");
++
++/*
++ * Just for compatibility with slram, this is horrible and should go someday.
++ */
++static int __init slram_setup(const char *val, struct kernel_param *kp)
++{
++ char buf[256], *str = buf;
++
++ if (!val || !val[0])
++ parse_err("no arguments to \"slram=\"\n");
++
++ if (strnlen(val, sizeof(str)) >= sizeof(str))
++ parse_err("parameter too long\n");
++
++ strcpy(str, val);
++
++ while (str) {
++ char *token[3];
++ char *name;
++ uint32_t start;
++ uint32_t len;
++ int i, ret;
++
++ for (i=0; i<3; i++) {
++ token[i] = strsep(&str, ",");
++ if (token[i])
++ continue;
++ parse_err("wrong number of arguments to \"slram=\"\n");
++ }
++
++ /* name */
++ ret = parse_name(&name, token[0]);
++ if (ret == -ENOMEM)
++ parse_err("of memory\n");
++ if (ret == -ENOSPC)
++ parse_err("too long\n");
++ if (ret)
++ return 1;
++
++ /* start */
++ ret = parse_num32(&start, token[1]);
++ if (ret)
++ parse_err("illegal start address\n");
++
++ /* len */
++ if (token[2][0] == '+')
++ ret = parse_num32(&len, token[2] + 1);
++ else
++ ret = parse_num32(&len, token[2]);
++
++ if (ret)
++ parse_err("illegal device length\n");
++
++ if (token[2][0] != '+') {
++ if (len < start)
++ parse_err("end < start\n");
++ len -= start;
++ }
++
++ register_device(name, start, len);
++ }
++ return 1;
++}
++
++module_param_call(slram, slram_setup, NULL, NULL, 000);
++MODULE_PARM_DESC(slram, "List of memory regions to map. \"map=<name>,<start><length/end>\"");
++
++
++int __init init_phram(void)
++{
++ printk(KERN_ERR "phram loaded\n");
++ return 0;
++}
++
++static void __exit cleanup_phram(void)
++{
++ unregister_devices();
++}
++
++module_init(init_phram);
++module_exit(cleanup_phram);
++
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("Jörn Engel <joern@wh.fh-wedel.de>");
++MODULE_DESCRIPTION("MTD driver for physical RAM");
+diff -Nurb linux-mips-2.4.27/drivers/mtd/devices/pmc551.c linux/drivers/mtd/devices/pmc551.c
+--- linux-mips-2.4.27/drivers/mtd/devices/pmc551.c 2003-02-26 01:53:49.000000000 +0100
++++ linux/drivers/mtd/devices/pmc551.c 2004-11-19 10:25:11.862205416 +0100
+@@ -1,5 +1,5 @@
+ /*
+- * $Id: pmc551.c,v 1.22 2003/01/24 13:34:30 dwmw2 Exp $
++ * $Id: pmc551.c,v 1.25 2003/06/23 12:24:01 dwmw2 Exp $
+ *
+ * PMC551 PCI Mezzanine Ram Device
+ *
+@@ -681,11 +681,6 @@
+
+ printk(KERN_INFO PMC551_VERSION);
+
+- if(!pci_present()) {
+- printk(KERN_NOTICE "pmc551: PCI not enabled.\n");
+- return -ENODEV;
+- }
+-
+ /*
+ * PCU-bus chipset probe.
+ */
+@@ -787,10 +782,10 @@
+ mtd->write = pmc551_write;
+ mtd->point = pmc551_point;
+ mtd->unpoint = pmc551_unpoint;
+- mtd->module = THIS_MODULE;
+ mtd->type = MTD_RAM;
+ mtd->name = "PMC551 RAM board";
+ mtd->erasesize = 0x10000;
++ mtd->owner = THIS_MODULE;
+
+ if (add_mtd_device(mtd)) {
+ printk(KERN_NOTICE "pmc551: Failed to register new device\n");
+diff -Nurb linux-mips-2.4.27/drivers/mtd/devices/slram.c linux/drivers/mtd/devices/slram.c
+--- linux-mips-2.4.27/drivers/mtd/devices/slram.c 2003-02-26 01:53:49.000000000 +0100
++++ linux/drivers/mtd/devices/slram.c 2004-11-19 10:25:11.863205264 +0100
+@@ -1,6 +1,6 @@
+ /*======================================================================
+
+- $Id: slram.c,v 1.28 2003/01/24 13:35:34 dwmw2 Exp $
++ $Id: slram.c,v 1.30 2003/05/20 21:03:08 dwmw2 Exp $
+
+ This driver provides a method to access memory not used by the kernel
+ itself (i.e. if the kernel commandline mem=xxx is used). To actually
+@@ -199,7 +199,7 @@
+ (*curmtd)->mtdinfo->unpoint = slram_unpoint;
+ (*curmtd)->mtdinfo->read = slram_read;
+ (*curmtd)->mtdinfo->write = slram_write;
+- (*curmtd)->mtdinfo->module = THIS_MODULE;
++ (*curmtd)->mtdinfo->owner = THIS_MODULE;
+ (*curmtd)->mtdinfo->type = MTD_RAM;
+ (*curmtd)->mtdinfo->erasesize = 0x0;
+
+diff -Nurb linux-mips-2.4.27/drivers/mtd/ftl.c linux/drivers/mtd/ftl.c
+--- linux-mips-2.4.27/drivers/mtd/ftl.c 2003-02-26 01:53:49.000000000 +0100
++++ linux/drivers/mtd/ftl.c 2004-11-19 10:25:11.630240680 +0100
+@@ -1,5 +1,5 @@
+ /* This version ported to the Linux-MTD system by dwmw2@infradead.org
+- * $Id: ftl.c,v 1.45 2003/01/24 23:31:27 dwmw2 Exp $
++ * $Id: ftl.c,v 1.52 2003/08/11 09:00:44 dwmw2 Exp $
+ *
+ * Fixes: Arnaldo Carvalho de Melo <acme@conectiva.com.br>
+ * - fixes some leaks on failure in build_maps and ftl_notify_add, cleanups
+@@ -55,8 +55,8 @@
+ contact M-Systems (http://www.m-sys.com) directly.
+
+ ======================================================================*/
++#include <linux/mtd/blktrans.h>
+ #include <linux/module.h>
+-#include <linux/mtd/compatmac.h>
+ #include <linux/mtd/mtd.h>
+ /*#define PSYCHO_DEBUG */
+
+@@ -68,43 +68,13 @@
+ #include <linux/timer.h>
+ #include <linux/major.h>
+ #include <linux/fs.h>
+-#include <linux/ioctl.h>
++#include <linux/init.h>
+ #include <linux/hdreg.h>
+-
+-#if (LINUX_VERSION_CODE >= 0x20100)
+ #include <linux/vmalloc.h>
+-#endif
+-#if (LINUX_VERSION_CODE >= 0x20303)
+ #include <linux/blkpg.h>
+-#endif
++#include <asm/uaccess.h>
+
+ #include <linux/mtd/ftl.h>
+-/*====================================================================*/
+-/* Stuff which really ought to be in compatmac.h */
+-
+-#if (LINUX_VERSION_CODE < 0x20328)
+-#define register_disk(dev, drive, minors, ops, size) \
+- do { (dev)->part[(drive)*(minors)].nr_sects = size; \
+- if (size == 0) (dev)->part[(drive)*(minors)].start_sect = -1; \
+- resetup_one_dev(dev, drive); } while (0)
+-#endif
+-
+-#if (LINUX_VERSION_CODE < 0x20320)
+-#define BLK_DEFAULT_QUEUE(n) blk_dev[n].request_fn
+-#define blk_init_queue(q, req) q = (req)
+-#define blk_cleanup_queue(q) q = NULL
+-#define request_arg_t void
+-#else
+-#define request_arg_t request_queue_t *q
+-#endif
+-
+-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,14)
+-#define BLK_INC_USE_COUNT MOD_INC_USE_COUNT
+-#define BLK_DEC_USE_COUNT MOD_DEC_USE_COUNT
+-#else
+-#define BLK_INC_USE_COUNT do {} while(0)
+-#define BLK_DEC_USE_COUNT do {} while(0)
+-#endif
+
+ /*====================================================================*/
+
+@@ -119,19 +89,6 @@
+ #define FTL_MAJOR 44
+ #endif
+
+-/* Funky stuff for setting up a block device */
+-#define MAJOR_NR FTL_MAJOR
+-#define DEVICE_NAME "ftl"
+-#define DEVICE_REQUEST do_ftl_request
+-#define DEVICE_ON(device)
+-#define DEVICE_OFF(device)
+-
+-#define DEVICE_NR(minor) ((minor)>>5)
+-#define REGION_NR(minor) (((minor)>>3)&3)
+-#define PART_NR(minor) ((minor)&7)
+-#define MINOR_NR(dev,reg,part) (((dev)<<5)+((reg)<<3)+(part))
+-
+-#include <linux/blk.h>
+
+ /*====================================================================*/
+
+@@ -142,8 +99,7 @@
+ #define MAX_REGION 4
+
+ /* Maximum number of partitions in an FTL region */
+-#define PART_BITS 3
+-#define MAX_PART 8
++#define PART_BITS 4
+
+ /* Maximum number of outstanding erase requests per socket */
+ #define MAX_ERASE 8
+@@ -154,7 +110,7 @@
+
+ /* Each memory region corresponds to a minor device */
+ typedef struct partition_t {
+- struct mtd_info *mtd;
++ struct mtd_blktrans_dev mbd;
+ u_int32_t state;
+ u_int32_t *VirtualBlockMap;
+ u_int32_t *VirtualPageMap;
+@@ -179,21 +135,10 @@
+ region_info_t region;
+ memory_handle_t handle;
+ #endif
+- atomic_t open;
+ } partition_t;
+
+-partition_t *myparts[MAX_MTD_DEVICES];
+-
+-static void ftl_notify_add(struct mtd_info *mtd);
+-static void ftl_notify_remove(struct mtd_info *mtd);
+-
+ void ftl_freepart(partition_t *part);
+
+-static struct mtd_notifier ftl_notifier = {
+- add: ftl_notify_add,
+- remove: ftl_notify_remove,
+-};
+-
+ /* Partition state flags */
+ #define FTL_FORMATTED 0x01
+
+@@ -204,51 +149,11 @@
+ #define XFER_PREPARED 0x03
+ #define XFER_FAILED 0x04
+
+-static struct hd_struct ftl_hd[MINOR_NR(MAX_DEV, 0, 0)];
+-static int ftl_sizes[MINOR_NR(MAX_DEV, 0, 0)];
+-static int ftl_blocksizes[MINOR_NR(MAX_DEV, 0, 0)];
+-
+-static struct gendisk ftl_gendisk = {
+- major: FTL_MAJOR,
+- major_name: "ftl",
+- minor_shift: PART_BITS,
+- max_p: MAX_PART,
+-#if (LINUX_VERSION_CODE < 0x20328)
+- max_nr: MAX_DEV*MAX_PART,
+-#endif
+- part: ftl_hd,
+- sizes: ftl_sizes,
+-};
+-
+ /*====================================================================*/
+
+-static int ftl_ioctl(struct inode *inode, struct file *file,
+- u_int cmd, u_long arg);
+-static int ftl_open(struct inode *inode, struct file *file);
+-static release_t ftl_close(struct inode *inode, struct file *file);
+-static int ftl_reread_partitions(int minor);
+
+ static void ftl_erase_callback(struct erase_info *done);
+
+-#if LINUX_VERSION_CODE < 0x20326
+-static struct file_operations ftl_blk_fops = {
+- open: ftl_open,
+- release: ftl_close,
+- ioctl: ftl_ioctl,
+- read: block_read,
+- write: block_write,
+- fsync: block_fsync
+-};
+-#else
+-static struct block_device_operations ftl_blk_fops = {
+-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,14)
+- owner: THIS_MODULE,
+-#endif
+- open: ftl_open,
+- release: ftl_close,
+- ioctl: ftl_ioctl,
+-};
+-#endif
+
+ /*======================================================================
+
+@@ -264,13 +169,13 @@
+ loff_t offset, max_offset;
+ int ret;
+ part->header.FormattedSize = 0;
+- max_offset = (0x100000<part->mtd->size)?0x100000:part->mtd->size;
++ max_offset = (0x100000<part->mbd.mtd->size)?0x100000:part->mbd.mtd->size;
+ /* Search first megabyte for a valid FTL header */
+ for (offset = 0;
+ (offset + sizeof(header)) < max_offset;
+- offset += part->mtd->erasesize ? : 0x2000) {
++ offset += part->mbd.mtd->erasesize ? : 0x2000) {
+
+- ret = part->mtd->read(part->mtd, offset, sizeof(header), &ret,
++ ret = part->mbd.mtd->read(part->mbd.mtd, offset, sizeof(header), &ret,
+ (unsigned char *)&header);
+
+ if (ret)
+@@ -283,15 +188,15 @@
+ printk(KERN_NOTICE "ftl_cs: FTL header not found.\n");
+ return -ENOENT;
+ }
+- if ((le16_to_cpu(header.NumEraseUnits) > 65536) || header.BlockSize != 9 ||
++ if (header.BlockSize != 9 ||
+ (header.EraseUnitSize < 10) || (header.EraseUnitSize > 31) ||
+ (header.NumTransferUnits >= le16_to_cpu(header.NumEraseUnits))) {
+ printk(KERN_NOTICE "ftl_cs: FTL header corrupt!\n");
+ return -1;
+ }
+- if ((1 << header.EraseUnitSize) != part->mtd->erasesize) {
++ if ((1 << header.EraseUnitSize) != part->mbd.mtd->erasesize) {
+ printk(KERN_NOTICE "ftl: FTL EraseUnitSize %x != MTD erasesize %x\n",
+- 1 << header.EraseUnitSize,part->mtd->erasesize);
++ 1 << header.EraseUnitSize,part->mbd.mtd->erasesize);
+ return -1;
+ }
+ part->header = header;
+@@ -326,7 +231,7 @@
+ for (i = 0; i < le16_to_cpu(part->header.NumEraseUnits); i++) {
+ offset = ((i + le16_to_cpu(part->header.FirstPhysicalEUN))
+ << part->header.EraseUnitSize);
+- ret = part->mtd->read(part->mtd, offset, sizeof(header), &retval,
++ ret = part->mbd.mtd->read(part->mbd.mtd, offset, sizeof(header), &retval,
+ (unsigned char *)&header);
+
+ if (ret)
+@@ -391,7 +296,7 @@
+ part->EUNInfo[i].Deleted = 0;
+ offset = part->EUNInfo[i].Offset + le32_to_cpu(header.BAMOffset);
+
+- ret = part->mtd->read(part->mtd, offset,
++ ret = part->mbd.mtd->read(part->mbd.mtd, offset,
+ part->BlocksPerUnit * sizeof(u_int32_t), &retval,
+ (unsigned char *)part->bam_cache);
+
+@@ -456,7 +361,7 @@
+ erase->len = 1 << part->header.EraseUnitSize;
+ erase->priv = (u_long)part;
+
+- ret = part->mtd->erase(part->mtd, erase);
++ ret = part->mbd.mtd->erase(part->mbd.mtd, erase);
+
+ if (!ret)
+ xfer->EraseCount++;
+@@ -523,7 +428,7 @@
+ header.LogicalEUN = cpu_to_le16(0xffff);
+ header.EraseCount = cpu_to_le32(xfer->EraseCount);
+
+- ret = part->mtd->write(part->mtd, xfer->Offset, sizeof(header),
++ ret = part->mbd.mtd->write(part->mbd.mtd, xfer->Offset, sizeof(header),
+ &retlen, (u_char *)&header);
+
+ if (ret) {
+@@ -539,7 +444,7 @@
+
+ for (i = 0; i < nbam; i++, offset += sizeof(u_int32_t)) {
+
+- ret = part->mtd->write(part->mtd, offset, sizeof(u_int32_t),
++ ret = part->mbd.mtd->write(part->mbd.mtd, offset, sizeof(u_int32_t),
+ &retlen, (u_char *)&ctl);
+
+ if (ret)
+@@ -586,7 +491,7 @@
+
+ offset = eun->Offset + le32_to_cpu(part->header.BAMOffset);
+
+- ret = part->mtd->read(part->mtd, offset,
++ ret = part->mbd.mtd->read(part->mbd.mtd, offset,
+ part->BlocksPerUnit * sizeof(u_int32_t),
+ &retlen, (u_char *) (part->bam_cache));
+
+@@ -604,7 +509,7 @@
+ offset = xfer->Offset + 20; /* Bad! */
+ unit = cpu_to_le16(0x7fff);
+
+- ret = part->mtd->write(part->mtd, offset, sizeof(u_int16_t),
++ ret = part->mbd.mtd->write(part->mbd.mtd, offset, sizeof(u_int16_t),
+ &retlen, (u_char *) &unit);
+
+ if (ret) {
+@@ -624,7 +529,7 @@
+ break;
+ case BLOCK_DATA:
+ case BLOCK_REPLACEMENT:
+- ret = part->mtd->read(part->mtd, src, SECTOR_SIZE,
++ ret = part->mbd.mtd->read(part->mbd.mtd, src, SECTOR_SIZE,
+ &retlen, (u_char *) buf);
+ if (ret) {
+ printk(KERN_WARNING "ftl: Error reading old xfer unit in copy_erase_unit\n");
+@@ -632,7 +537,7 @@
+ }
+
+
+- ret = part->mtd->write(part->mtd, dest, SECTOR_SIZE,
++ ret = part->mbd.mtd->write(part->mbd.mtd, dest, SECTOR_SIZE,
+ &retlen, (u_char *) buf);
+ if (ret) {
+ printk(KERN_WARNING "ftl: Error writing new xfer unit in copy_erase_unit\n");
+@@ -651,7 +556,7 @@
+ }
+
+ /* Write the BAM to the transfer unit */
+- ret = part->mtd->write(part->mtd, xfer->Offset + le32_to_cpu(part->header.BAMOffset),
++ ret = part->mbd.mtd->write(part->mbd.mtd, xfer->Offset + le32_to_cpu(part->header.BAMOffset),
+ part->BlocksPerUnit * sizeof(int32_t), &retlen,
+ (u_char *)part->bam_cache);
+ if (ret) {
+@@ -661,7 +566,7 @@
+
+
+ /* All clear? Then update the LogicalEUN again */
+- ret = part->mtd->write(part->mtd, xfer->Offset + 20, sizeof(u_int16_t),
++ ret = part->mbd.mtd->write(part->mbd.mtd, xfer->Offset + 20, sizeof(u_int16_t),
+ &retlen, (u_char *)&srcunitswap);
+
+ if (ret) {
+@@ -749,8 +654,8 @@
+ if (queued) {
+ DEBUG(1, "ftl_cs: waiting for transfer "
+ "unit to be prepared...\n");
+- if (part->mtd->sync)
+- part->mtd->sync(part->mtd);
++ if (part->mbd.mtd->sync)
++ part->mbd.mtd->sync(part->mbd.mtd);
+ } else {
+ static int ne = 0;
+ if (++ne < 5)
+@@ -848,7 +753,7 @@
+ /* Invalidate cache */
+ part->bam_index = 0xffff;
+
+- ret = part->mtd->read(part->mtd,
++ ret = part->mbd.mtd->read(part->mbd.mtd,
+ part->EUNInfo[eun].Offset + le32_to_cpu(part->header.BAMOffset),
+ part->BlocksPerUnit * sizeof(u_int32_t),
+ &retlen, (u_char *) (part->bam_cache));
+@@ -877,78 +782,6 @@
+
+ } /* find_free */
+
+-/*======================================================================
+-
+- This gets a memory handle for the region corresponding to the
+- minor device number.
+-
+-======================================================================*/
+-
+-static int ftl_open(struct inode *inode, struct file *file)
+-{
+- int minor = MINOR(inode->i_rdev);
+- partition_t *partition;
+-
+- if (minor>>4 >= MAX_MTD_DEVICES)
+- return -ENODEV;
+-
+- partition = myparts[minor>>4];
+-
+- if (!partition)
+- return -ENODEV;
+-
+- if (partition->state != FTL_FORMATTED)
+- return -ENXIO;
+-
+- if (ftl_gendisk.part[minor].nr_sects == 0)
+- return -ENXIO;
+-
+- BLK_INC_USE_COUNT;
+-
+- if (!get_mtd_device(partition->mtd, -1)) {
+- BLK_DEC_USE_COUNT;
+- return -ENXIO;
+- }
+-
+- if ((file->f_mode & 2) && !(partition->mtd->flags & MTD_CLEAR_BITS) ) {
+- put_mtd_device(partition->mtd);
+- BLK_DEC_USE_COUNT;
+- return -EROFS;
+- }
+-
+- DEBUG(0, "ftl_cs: ftl_open(%d)\n", minor);
+-
+- atomic_inc(&partition->open);
+-
+- return 0;
+-}
+-
+-/*====================================================================*/
+-
+-static release_t ftl_close(struct inode *inode, struct file *file)
+-{
+- int minor = MINOR(inode->i_rdev);
+- partition_t *part = myparts[minor >> 4];
+- int i;
+-
+- DEBUG(0, "ftl_cs: ftl_close(%d)\n", minor);
+-
+- /* Wait for any pending erase operations to complete */
+- if (part->mtd->sync)
+- part->mtd->sync(part->mtd);
+-
+- for (i = 0; i < part->header.NumTransferUnits; i++) {
+- if (part->XferInfo[i].state == XFER_ERASED)
+- prepare_xfer(part, i);
+- }
+-
+- atomic_dec(&part->open);
+-
+- put_mtd_device(part->mtd);
+- BLK_DEC_USE_COUNT;
+- release_return(0);
+-} /* ftl_close */
+-
+
+ /*======================================================================
+
+@@ -983,7 +816,7 @@
+ else {
+ offset = (part->EUNInfo[log_addr / bsize].Offset
+ + (log_addr % bsize));
+- ret = part->mtd->read(part->mtd, offset, SECTOR_SIZE,
++ ret = part->mbd.mtd->read(part->mbd.mtd, offset, SECTOR_SIZE,
+ &retlen, (u_char *) buffer);
+
+ if (ret) {
+@@ -1022,7 +855,7 @@
+ le32_to_cpu(part->header.BAMOffset));
+
+ #ifdef PSYCHO_DEBUG
+- ret = part->mtd->read(part->mtd, offset, sizeof(u_int32_t),
++ ret = part->mbd.mtd->read(part->mbd.mtd, offset, sizeof(u_int32_t),
+ &retlen, (u_char *)&old_addr);
+ if (ret) {
+ printk(KERN_WARNING"ftl: Error reading old_addr in set_bam_entry: %d\n",ret);
+@@ -1059,7 +892,7 @@
+ #endif
+ part->bam_cache[blk] = le_virt_addr;
+ }
+- ret = part->mtd->write(part->mtd, offset, sizeof(u_int32_t),
++ ret = part->mbd.mtd->write(part->mbd.mtd, offset, sizeof(u_int32_t),
+ &retlen, (u_char *)&le_virt_addr);
+
+ if (ret) {
+@@ -1119,7 +952,7 @@
+ part->EUNInfo[part->bam_index].Deleted++;
+ offset = (part->EUNInfo[part->bam_index].Offset +
+ blk * SECTOR_SIZE);
+- ret = part->mtd->write(part->mtd, offset, SECTOR_SIZE, &retlen,
++ ret = part->mbd.mtd->write(part->mbd.mtd, offset, SECTOR_SIZE, &retlen,
+ buffer);
+
+ if (ret) {
+@@ -1151,164 +984,32 @@
+ return 0;
+ } /* ftl_write */
+
+-/*======================================================================
+-
+- IOCTL calls for getting device parameters.
+-
+-======================================================================*/
+-
+-static int ftl_ioctl(struct inode *inode, struct file *file,
+- u_int cmd, u_long arg)
++static int ftl_getgeo(struct mtd_blktrans_dev *dev, struct hd_geometry *geo)
+ {
+- struct hd_geometry *geo = (struct hd_geometry *)arg;
+- int ret = 0, minor = MINOR(inode->i_rdev);
+- partition_t *part= myparts[minor >> 4];
++ partition_t *part = (void *)dev;
+ u_long sect;
+
+- if (!part)
+- return -ENODEV; /* How? */
+-
+- switch (cmd) {
+- case HDIO_GETGEO:
+- ret = verify_area(VERIFY_WRITE, (long *)arg, sizeof(*geo));
+- if (ret) return ret;
+- /* Sort of arbitrary: round size down to 4K boundary */
++ /* Sort of arbitrary: round size down to 4KiB boundary */
+ sect = le32_to_cpu(part->header.FormattedSize)/SECTOR_SIZE;
+- put_user(1, (char *)&geo->heads);
+- put_user(8, (char *)&geo->sectors);
+- put_user((sect>>3), (short *)&geo->cylinders);
+- put_user(ftl_hd[minor].start_sect, (u_long *)&geo->start);
+- break;
+- case BLKGETSIZE:
+- ret = put_user(ftl_hd[minor].nr_sects, (unsigned long *)arg);
+- break;
+-#ifdef BLKGETSIZE64
+- case BLKGETSIZE64:
+- ret = put_user((u64)ftl_hd[minor].nr_sects << 9, (u64 *)arg);
+- break;
+-#endif
+- case BLKRRPART:
+- ret = ftl_reread_partitions(minor);
+- break;
+-#if (LINUX_VERSION_CODE < 0x20303)
+- case BLKFLSBUF:
+-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,2,0)
+- if (!capable(CAP_SYS_ADMIN)) return -EACCES;
+-#endif
+- fsync_dev(inode->i_rdev);
+- invalidate_buffers(inode->i_rdev);
+- break;
+- RO_IOCTLS(inode->i_rdev, arg);
+-#else
+- case BLKROSET:
+- case BLKROGET:
+- case BLKFLSBUF:
+- ret = blk_ioctl(inode->i_rdev, cmd, arg);
+- break;
+-#endif
+- default:
+- ret = -EINVAL;
+- }
+-
+- return ret;
+-} /* ftl_ioctl */
+-
+-/*======================================================================
+
+- Handler for block device requests
++ geo->heads = 1;
++ geo->sectors = 8;
++ geo->cylinders = sect >> 3;
+
+-======================================================================*/
+-
+-static int ftl_reread_partitions(int minor)
+-{
+- partition_t *part = myparts[minor >> 4];
+- int i, whole;
+-
+- DEBUG(0, "ftl_cs: ftl_reread_partition(%d)\n", minor);
+- if ((atomic_read(&part->open) > 1)) {
+- return -EBUSY;
+- }
+- whole = minor & ~(MAX_PART-1);
+-
+- i = MAX_PART - 1;
+- while (i-- > 0) {
+- if (ftl_hd[whole+i].nr_sects > 0) {
+- kdev_t rdev = MKDEV(FTL_MAJOR, whole+i);
+-
+- invalidate_device(rdev, 1);
+- }
+- ftl_hd[whole+i].start_sect = 0;
+- ftl_hd[whole+i].nr_sects = 0;
+- }
+-
+- scan_header(part);
+-
+- register_disk(&ftl_gendisk, whole >> PART_BITS, MAX_PART,
+- &ftl_blk_fops, le32_to_cpu(part->header.FormattedSize)/SECTOR_SIZE);
+-
+-#ifdef PCMCIA_DEBUG
+- for (i = 0; i < MAX_PART; i++) {
+- if (ftl_hd[whole+i].nr_sects > 0)
+- printk(KERN_INFO " %d: start %ld size %ld\n", i,
+- ftl_hd[whole+i].start_sect,
+- ftl_hd[whole+i].nr_sects);
+- }
+-#endif
+ return 0;
+ }
+
+-/*======================================================================
+-
+- Handler for block device requests
+-
+-======================================================================*/
+-
+-static void do_ftl_request(request_arg_t)
++static int ftl_readsect(struct mtd_blktrans_dev *dev,
++ unsigned long block, char *buf)
+ {
+- int ret, minor;
+- partition_t *part;
+-
+- do {
+- // sti();
+- INIT_REQUEST;
+-
+- minor = MINOR(CURRENT->rq_dev);
+-
+- part = myparts[minor >> 4];
+- if (part) {
+- ret = 0;
+-
+- switch (CURRENT->cmd) {
+- case READ:
+- ret = ftl_read(part, CURRENT->buffer,
+- CURRENT->sector+ftl_hd[minor].start_sect,
+- CURRENT->current_nr_sectors);
+- if (ret) printk("ftl_read returned %d\n", ret);
+- break;
+-
+- case WRITE:
+- ret = ftl_write(part, CURRENT->buffer,
+- CURRENT->sector+ftl_hd[minor].start_sect,
+- CURRENT->current_nr_sectors);
+- if (ret) printk("ftl_write returned %d\n", ret);
+- break;
+-
+- default:
+- panic("ftl_cs: unknown block command!\n");
+-
+- }
+- } else {
+- ret = 1;
+- printk("NULL part in ftl_request\n");
+- }
+-
+- if (!ret) {
+- CURRENT->sector += CURRENT->current_nr_sectors;
+- }
++ return ftl_read((void *)dev, buf, block, 1);
++}
+
+- end_request((ret == 0) ? 1 : 0);
+- } while (1);
+-} /* do_ftl_request */
++static int ftl_writesect(struct mtd_blktrans_dev *dev,
++ unsigned long block, char *buf)
++{
++ return ftl_write((void *)dev, buf, block, 1);
++}
+
+ /*====================================================================*/
+
+@@ -1337,19 +1038,9 @@
+
+ } /* ftl_freepart */
+
+-static void ftl_notify_add(struct mtd_info *mtd)
++static void ftl_add_mtd(struct mtd_blktrans_ops *tr, struct mtd_info *mtd)
+ {
+ partition_t *partition;
+- int device;
+-
+- for (device=0; device < MAX_MTD_DEVICES && myparts[device]; device++)
+- ;
+-
+- if (device == MAX_MTD_DEVICES) {
+- printk(KERN_NOTICE "Maximum number of FTL partitions reached\n"
+- "Not scanning <%s>\n", mtd->name);
+- return;
+- }
+
+ partition = kmalloc(sizeof(partition_t), GFP_KERNEL);
+
+@@ -1361,92 +1052,55 @@
+
+ memset(partition, 0, sizeof(partition_t));
+
+- partition->mtd = mtd;
++ partition->mbd.mtd = mtd;
+
+ if ((scan_header(partition) == 0) &&
+ (build_maps(partition) == 0)) {
+
+ partition->state = FTL_FORMATTED;
+- atomic_set(&partition->open, 0);
+- myparts[device] = partition;
+- ftl_reread_partitions(device << 4);
+ #ifdef PCMCIA_DEBUG
+- printk(KERN_INFO "ftl_cs: opening %d kb FTL partition\n",
++ printk(KERN_INFO "ftl_cs: opening %d KiB FTL partition\n",
+ le32_to_cpu(partition->header.FormattedSize) >> 10);
+ #endif
++ partition->mbd.size = le32_to_cpu(partition->header.FormattedSize) >> 9;
++ partition->mbd.blksize = SECTOR_SIZE;
++ partition->mbd.tr = tr;
++ partition->mbd.devnum = -1;
++ if (add_mtd_blktrans_dev((void *)partition))
++ kfree(partition);
++
+ } else
+ kfree(partition);
+ }
+
+-static void ftl_notify_remove(struct mtd_info *mtd)
++static void ftl_remove_dev(struct mtd_blktrans_dev *dev)
+ {
+- int i,j;
+-
+- /* Q: What happens if you try to remove a device which has
+- * a currently-open FTL partition on it?
+- *
+- * A: You don't. The ftl_open routine is responsible for
+- * increasing the use count of the driver module which
+- * it uses.
+- */
+-
+- /* That's the theory, anyway :) */
+-
+- for (i=0; i< MAX_MTD_DEVICES; i++)
+- if (myparts[i] && myparts[i]->mtd == mtd) {
+-
+- if (myparts[i]->state == FTL_FORMATTED)
+- ftl_freepart(myparts[i]);
+-
+- myparts[i]->state = 0;
+- for (j=0; j<16; j++) {
+- ftl_gendisk.part[j].nr_sects=0;
+- ftl_gendisk.part[j].start_sect=0;
+- }
+- kfree(myparts[i]);
+- myparts[i] = NULL;
+- }
++ del_mtd_blktrans_dev(dev);
++ kfree(dev);
+ }
+
++struct mtd_blktrans_ops ftl_tr = {
++ .name = "ftl",
++ .major = FTL_MAJOR,
++ .part_bits = PART_BITS,
++ .readsect = ftl_readsect,
++ .writesect = ftl_writesect,
++ .getgeo = ftl_getgeo,
++ .add_mtd = ftl_add_mtd,
++ .remove_dev = ftl_remove_dev,
++ .owner = THIS_MODULE,
++};
++
+ int init_ftl(void)
+ {
+- int i;
+-
+- memset(myparts, 0, sizeof(myparts));
++ DEBUG(0, "$Id: ftl.c,v 1.52 2003/08/11 09:00:44 dwmw2 Exp $\n");
+
+- DEBUG(0, "$Id: ftl.c,v 1.45 2003/01/24 23:31:27 dwmw2 Exp $\n");
+-
+- if (register_blkdev(FTL_MAJOR, "ftl", &ftl_blk_fops)) {
+- printk(KERN_NOTICE "ftl_cs: unable to grab major "
+- "device number!\n");
+- return -EAGAIN;
+- }
+-
+- for (i = 0; i < MINOR_NR(MAX_DEV, 0, 0); i++)
+- ftl_blocksizes[i] = 1024;
+- for (i = 0; i < MAX_DEV*MAX_PART; i++) {
+- ftl_hd[i].nr_sects = 0;
+- ftl_hd[i].start_sect = 0;
+- }
+- blksize_size[FTL_MAJOR] = ftl_blocksizes;
+- ftl_gendisk.major = FTL_MAJOR;
+- blk_init_queue(BLK_DEFAULT_QUEUE(FTL_MAJOR), &do_ftl_request);
+- add_gendisk(&ftl_gendisk);
+-
+- register_mtd_user(&ftl_notifier);
+-
+- return 0;
++ return register_mtd_blktrans(&ftl_tr);
+ }
+
+ static void __exit cleanup_ftl(void)
+ {
+- unregister_mtd_user(&ftl_notifier);
+-
+- unregister_blkdev(FTL_MAJOR, "ftl");
+- blk_cleanup_queue(BLK_DEFAULT_QUEUE(FTL_MAJOR));
+- blksize_size[FTL_MAJOR] = NULL;
+-
+- del_gendisk(&ftl_gendisk);
++ deregister_mtd_blktrans(&ftl_tr);
+ }
+
+ module_init(init_ftl);
+diff -Nurb linux-mips-2.4.27/drivers/mtd/inftlcore.c linux/drivers/mtd/inftlcore.c
+--- linux-mips-2.4.27/drivers/mtd/inftlcore.c 1970-01-01 01:00:00.000000000 +0100
++++ linux/drivers/mtd/inftlcore.c 2004-11-19 10:25:11.632240376 +0100
+@@ -0,0 +1,900 @@
++/*
++ * inftlcore.c -- Linux driver for Inverse Flash Translation Layer (INFTL)
++ *
++ * (C) Copyright 2002, Greg Ungerer (gerg@snapgear.com)
++ *
++ * Based heavily on the nftlcore.c code which is:
++ * (c) 1999 Machine Vision Holdings, Inc.
++ * Author: David Woodhouse <dwmw2@infradead.org>
++ *
++ * $Id: inftlcore.c,v 1.14 2003/06/26 08:28:26 dwmw2 Exp $
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License as published by
++ * the Free Software Foundation; either version 2 of the License, or
++ * (at your option) any later version.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ * GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
++ */
++
++#include <linux/config.h>
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/delay.h>
++#include <linux/slab.h>
++#include <linux/sched.h>
++#include <linux/init.h>
++#include <linux/kmod.h>
++#include <linux/hdreg.h>
++#include <linux/mtd/mtd.h>
++#include <linux/mtd/nftl.h>
++#include <linux/mtd/inftl.h>
++#include <asm/uaccess.h>
++#include <asm/errno.h>
++#include <asm/io.h>
++
++/*
++ * Maximum number of loops while examining next block, to have a
++ * chance to detect consistency problems (they should never happen
++ * because of the checks done in the mounting.
++ */
++#define MAX_LOOPS 10000
++
++extern void INFTL_dumptables(struct INFTLrecord *inftl);
++extern void INFTL_dumpVUchains(struct INFTLrecord *inftl);
++
++static void inftl_add_mtd(struct mtd_blktrans_ops *tr, struct mtd_info *mtd)
++{
++ struct INFTLrecord *inftl;
++ unsigned long temp;
++
++ if (mtd->ecctype != MTD_ECC_RS_DiskOnChip)
++ return;
++
++ DEBUG(MTD_DEBUG_LEVEL3, "INFTL: add_mtd for %s\n", mtd->name);
++
++ inftl = kmalloc(sizeof(*inftl), GFP_KERNEL);
++
++ if (!inftl) {
++ printk(KERN_WARNING "INFTL: Out of memory for data structures\n");
++ return;
++ }
++ memset(inftl, 0, sizeof(*inftl));
++
++ inftl->mbd.mtd = mtd;
++ inftl->mbd.devnum = -1;
++ inftl->mbd.blksize = 512;
++ inftl->mbd.tr = tr;
++
++ if (INFTL_mount(inftl) < 0) {
++ printk(KERN_WARNING "INFTL: could not mount device\n");
++ kfree(inftl);
++ return;
++ }
++
++ /* OK, it's a new one. Set up all the data structures. */
++
++ /* Calculate geometry */
++ inftl->cylinders = 1024;
++ inftl->heads = 16;
++
++ temp = inftl->cylinders * inftl->heads;
++ inftl->sectors = inftl->mbd.size / temp;
++ if (inftl->mbd.size % temp) {
++ inftl->sectors++;
++ temp = inftl->cylinders * inftl->sectors;
++ inftl->heads = inftl->mbd.size / temp;
++
++ if (inftl->mbd.size % temp) {
++ inftl->heads++;
++ temp = inftl->heads * inftl->sectors;
++ inftl->cylinders = inftl->mbd.size / temp;
++ }
++ }
++
++ if (inftl->mbd.size != inftl->heads * inftl->cylinders * inftl->sectors) {
++ /*
++ Oh no we don't have
++ mbd.size == heads * cylinders * sectors
++ */
++ printk(KERN_WARNING "INFTL: cannot calculate a geometry to "
++ "match size of 0x%lx.\n", inftl->mbd.size);
++ printk(KERN_WARNING "INFTL: using C:%d H:%d S:%d "
++ "(== 0x%lx sects)\n",
++ inftl->cylinders, inftl->heads , inftl->sectors,
++ (long)inftl->cylinders * (long)inftl->heads *
++ (long)inftl->sectors );
++ }
++
++ if (add_mtd_blktrans_dev(&inftl->mbd)) {
++ if (inftl->PUtable)
++ kfree(inftl->PUtable);
++ if (inftl->VUtable)
++ kfree(inftl->VUtable);
++ kfree(inftl);
++ return;
++ }
++#ifdef PSYCHO_DEBUG
++ printk(KERN_INFO "INFTL: Found new nftl%c\n", nftl->mbd.devnum + 'a');
++#endif
++ return;
++}
++
++static void inftl_remove_dev(struct mtd_blktrans_dev *dev)
++{
++ struct INFTLrecord *inftl = (void *)dev;
++
++ DEBUG(MTD_DEBUG_LEVEL3, "INFTL: remove_dev (i=%d)\n", dev->devnum);
++
++ del_mtd_blktrans_dev(dev);
++
++ if (inftl->PUtable)
++ kfree(inftl->PUtable);
++ if (inftl->VUtable)
++ kfree(inftl->VUtable);
++ kfree(inftl);
++}
++
++/*
++ * Actual INFTL access routines.
++ */
++
++/*
++ * INFTL_findfreeblock: Find a free Erase Unit on the INFTL partition.
++ * This function is used when the give Virtual Unit Chain.
++ */
++static u16 INFTL_findfreeblock(struct INFTLrecord *inftl, int desperate)
++{
++ u16 pot = inftl->LastFreeEUN;
++ int silly = inftl->nb_blocks;
++
++ DEBUG(MTD_DEBUG_LEVEL3, "INFTL: INFTL_findfreeblock(inftl=0x%x,"
++ "desperate=%d)\n", (int)inftl, desperate);
++
++ /*
++ * Normally, we force a fold to happen before we run out of free
++ * blocks completely.
++ */
++ if (!desperate && inftl->numfreeEUNs < 2) {
++ DEBUG(MTD_DEBUG_LEVEL1, "INFTL: there are too few free "
++ "EUNs (%d)\n", inftl->numfreeEUNs);
++ return 0xffff;
++ }
++
++ /* Scan for a free block */
++ do {
++ if (inftl->PUtable[pot] == BLOCK_FREE) {
++ inftl->LastFreeEUN = pot;
++ return pot;
++ }
++
++ if (++pot > inftl->lastEUN)
++ pot = 0;
++
++ if (!silly--) {
++ printk(KERN_WARNING "INFTL: no free blocks found! "
++ "EUN range = %d - %d\n", 0, inftl->LastFreeEUN);
++ return BLOCK_NIL;
++ }
++ } while (pot != inftl->LastFreeEUN);
++
++ return BLOCK_NIL;
++}
++
++static u16 INFTL_foldchain(struct INFTLrecord *inftl, unsigned thisVUC, unsigned pendingblock)
++{
++ u16 BlockMap[MAX_SECTORS_PER_UNIT];
++ unsigned char BlockDeleted[MAX_SECTORS_PER_UNIT];
++ unsigned int thisEUN, prevEUN, status;
++ int block, silly;
++ unsigned int targetEUN;
++ struct inftl_oob oob;
++ size_t retlen;
++
++ DEBUG(MTD_DEBUG_LEVEL3, "INFTL: INFTL_foldchain(inftl=0x%x,thisVUC=%d,"
++ "pending=%d)\n", (int)inftl, thisVUC, pendingblock);
++
++ memset(BlockMap, 0xff, sizeof(BlockMap));
++ memset(BlockDeleted, 0, sizeof(BlockDeleted));
++
++ thisEUN = targetEUN = inftl->VUtable[thisVUC];
++
++ if (thisEUN == BLOCK_NIL) {
++ printk(KERN_WARNING "INFTL: trying to fold non-existent "
++ "Virtual Unit Chain %d!\n", thisVUC);
++ return BLOCK_NIL;
++ }
++
++ /*
++ * Scan to find the Erase Unit which holds the actual data for each
++ * 512-byte block within the Chain.
++ */
++ silly = MAX_LOOPS;
++ while (thisEUN < inftl->nb_blocks) {
++ for (block = 0; block < inftl->EraseSize/SECTORSIZE; block ++) {
++ if ((BlockMap[block] != 0xffff) || BlockDeleted[block])
++ continue;
++
++ if (MTD_READOOB(inftl->mbd.mtd, (thisEUN * inftl->EraseSize)
++ + (block * SECTORSIZE), 16 , &retlen,
++ (char *)&oob) < 0)
++ status = SECTOR_IGNORE;
++ else
++ status = oob.b.Status | oob.b.Status1;
++
++ switch(status) {
++ case SECTOR_FREE:
++ case SECTOR_IGNORE:
++ break;
++ case SECTOR_USED:
++ BlockMap[block] = thisEUN;
++ continue;
++ case SECTOR_DELETED:
++ BlockDeleted[block] = 1;
++ continue;
++ default:
++ printk(KERN_WARNING "INFTL: unknown status "
++ "for block %d in EUN %d: %x\n",
++ block, thisEUN, status);
++ break;
++ }
++ }
++
++ if (!silly--) {
++ printk(KERN_WARNING "INFTL: infinite loop in Virtual "
++ "Unit Chain 0x%x\n", thisVUC);
++ return BLOCK_NIL;
++ }
++
++ thisEUN = inftl->PUtable[thisEUN];
++ }
++
++ /*
++ * OK. We now know the location of every block in the Virtual Unit
++ * Chain, and the Erase Unit into which we are supposed to be copying.
++ * Go for it.
++ */
++ DEBUG(MTD_DEBUG_LEVEL1, "INFTL: folding chain %d into unit %d\n",
++ thisVUC, targetEUN);
++
++ for (block = 0; block < inftl->EraseSize/SECTORSIZE ; block++) {
++ unsigned char movebuf[SECTORSIZE];
++ int ret;
++
++ /*
++ * If it's in the target EUN already, or if it's pending write,
++ * do nothing.
++ */
++ if (BlockMap[block] == targetEUN || (pendingblock ==
++ (thisVUC * (inftl->EraseSize / SECTORSIZE) + block))) {
++ continue;
++ }
++
++ /*
++ * Copy only in non free block (free blocks can only
++ * happen in case of media errors or deleted blocks).
++ */
++ if (BlockMap[block] == BLOCK_NIL)
++ continue;
++
++ ret = MTD_READECC(inftl->mbd.mtd, (inftl->EraseSize *
++ BlockMap[block]) + (block * SECTORSIZE), SECTORSIZE,
++ &retlen, movebuf, (char *)&oob, NULL);
++ if (ret < 0) {
++ ret = MTD_READECC(inftl->mbd.mtd, (inftl->EraseSize *
++ BlockMap[block]) + (block * SECTORSIZE),
++ SECTORSIZE, &retlen, movebuf, (char *)&oob,
++ NULL);
++ if (ret != -EIO)
++ DEBUG(MTD_DEBUG_LEVEL1, "INFTL: error went "
++ "away on retry?\n");
++ }
++ MTD_WRITEECC(inftl->mbd.mtd, (inftl->EraseSize * targetEUN) +
++ (block * SECTORSIZE), SECTORSIZE, &retlen,
++ movebuf, (char *)&oob, NULL);
++ }
++
++ /*
++ * Newest unit in chain now contains data from _all_ older units.
++ * So go through and erase each unit in chain, oldest first. (This
++ * is important, by doing oldest first if we crash/reboot then it
++ * it is relatively simple to clean up the mess).
++ */
++ DEBUG(MTD_DEBUG_LEVEL1, "INFTL: want to erase virtual chain %d\n",
++ thisVUC);
++
++ for (;;) {
++ /* Find oldest unit in chain. */
++ thisEUN = inftl->VUtable[thisVUC];
++ prevEUN = BLOCK_NIL;
++ while (inftl->PUtable[thisEUN] != BLOCK_NIL) {
++ prevEUN = thisEUN;
++ thisEUN = inftl->PUtable[thisEUN];
++ }
++
++ /* Check if we are all done */
++ if (thisEUN == targetEUN)
++ break;
++
++ if (INFTL_formatblock(inftl, thisEUN) < 0) {
++ /*
++ * Could not erase : mark block as reserved.
++ * FixMe: Update Bad Unit Table on disk.
++ */
++ inftl->PUtable[thisEUN] = BLOCK_RESERVED;
++ } else {
++ /* Correctly erased : mark it as free */
++ inftl->PUtable[thisEUN] = BLOCK_FREE;
++ inftl->PUtable[prevEUN] = BLOCK_NIL;
++ inftl->numfreeEUNs++;
++ }
++ }
++
++ return targetEUN;
++}
++
++u16 INFTL_makefreeblock(struct INFTLrecord *inftl, unsigned pendingblock)
++{
++ /*
++ * This is the part that needs some cleverness applied.
++ * For now, I'm doing the minimum applicable to actually
++ * get the thing to work.
++ * Wear-levelling and other clever stuff needs to be implemented
++ * and we also need to do some assessment of the results when
++ * the system loses power half-way through the routine.
++ */
++ u16 LongestChain = 0;
++ u16 ChainLength = 0, thislen;
++ u16 chain, EUN;
++
++ DEBUG(MTD_DEBUG_LEVEL3, "INFTL: INFTL_makefreeblock(inftl=0x%x,"
++ "pending=%d)\n", (int)inftl, pendingblock);
++
++ for (chain = 0; chain < inftl->nb_blocks; chain++) {
++ EUN = inftl->VUtable[chain];
++ thislen = 0;
++
++ while (EUN <= inftl->lastEUN) {
++ thislen++;
++ EUN = inftl->PUtable[EUN];
++ if (thislen > 0xff00) {
++ printk(KERN_WARNING "INFTL: endless loop in "
++ "Virtual Chain %d: Unit %x\n",
++ chain, EUN);
++ /*
++ * Actually, don't return failure.
++ * Just ignore this chain and get on with it.
++ */
++ thislen = 0;
++ break;
++ }
++ }
++
++ if (thislen > ChainLength) {
++ ChainLength = thislen;
++ LongestChain = chain;
++ }
++ }
++
++ if (ChainLength < 2) {
++ printk(KERN_WARNING "INFTL: no Virtual Unit Chains available "
++ "for folding. Failing request\n");
++ return BLOCK_NIL;
++ }
++
++ return INFTL_foldchain(inftl, LongestChain, pendingblock);
++}
++
++static int nrbits(unsigned int val, int bitcount)
++{
++ int i, total = 0;
++
++ for (i = 0; (i < bitcount); i++)
++ total += (((0x1 << i) & val) ? 1 : 0);
++ return total;
++}
++
++/*
++ * INFTL_findwriteunit: Return the unit number into which we can write
++ * for this block. Make it available if it isn't already.
++ */
++static inline u16 INFTL_findwriteunit(struct INFTLrecord *inftl, unsigned block)
++{
++ unsigned int thisVUC = block / (inftl->EraseSize / SECTORSIZE);
++ unsigned int thisEUN, writeEUN, prev_block, status;
++ unsigned long blockofs = (block * SECTORSIZE) & (inftl->EraseSize -1);
++ struct inftl_oob oob;
++ struct inftl_bci bci;
++ unsigned char anac, nacs, parity;
++ size_t retlen;
++ int silly, silly2 = 3;
++
++ DEBUG(MTD_DEBUG_LEVEL3, "INFTL: INFTL_findwriteunit(inftl=0x%x,"
++ "block=%d)\n", (int)inftl, block);
++
++ do {
++ /*
++ * Scan the media to find a unit in the VUC which has
++ * a free space for the block in question.
++ */
++ writeEUN = BLOCK_NIL;
++ thisEUN = inftl->VUtable[thisVUC];
++ silly = MAX_LOOPS;
++
++ while (thisEUN <= inftl->lastEUN) {
++ MTD_READOOB(inftl->mbd.mtd, (thisEUN * inftl->EraseSize) +
++ blockofs, 8, &retlen, (char *)&bci);
++
++ status = bci.Status | bci.Status1;
++ DEBUG(MTD_DEBUG_LEVEL3, "INFTL: status of block %d in "
++ "EUN %d is %x\n", block , writeEUN, status);
++
++ switch(status) {
++ case SECTOR_FREE:
++ writeEUN = thisEUN;
++ break;
++ case SECTOR_DELETED:
++ case SECTOR_USED:
++ /* Can't go any further */
++ goto hitused;
++ case SECTOR_IGNORE:
++ break;
++ default:
++ /*
++ * Invalid block. Don't use it any more.
++ * Must implement.
++ */
++ break;
++ }
++
++ if (!silly--) {
++ printk(KERN_WARNING "INFTL: infinite loop in "
++ "Virtual Unit Chain 0x%x\n", thisVUC);
++ return 0xffff;
++ }
++
++ /* Skip to next block in chain */
++ thisEUN = inftl->PUtable[thisEUN];
++ }
++
++hitused:
++ if (writeEUN != BLOCK_NIL)
++ return writeEUN;
++
++
++ /*
++ * OK. We didn't find one in the existing chain, or there
++ * is no existing chain. Allocate a new one.
++ */
++ writeEUN = INFTL_findfreeblock(inftl, 0);
++
++ if (writeEUN == BLOCK_NIL) {
++ /*
++ * That didn't work - there were no free blocks just
++ * waiting to be picked up. We're going to have to fold
++ * a chain to make room.
++ */
++ thisEUN = INFTL_makefreeblock(inftl, 0xffff);
++
++ /*
++ * Hopefully we free something, lets try again.
++ * This time we are desperate...
++ */
++ DEBUG(MTD_DEBUG_LEVEL1, "INFTL: using desperate==1 "
++ "to find free EUN to accommodate write to "
++ "VUC %d\n", thisVUC);
++ writeEUN = INFTL_findfreeblock(inftl, 1);
++ if (writeEUN == BLOCK_NIL) {
++ /*
++ * Ouch. This should never happen - we should
++ * always be able to make some room somehow.
++ * If we get here, we've allocated more storage
++ * space than actual media, or our makefreeblock
++ * routine is missing something.
++ */
++ printk(KERN_WARNING "INFTL: cannot make free "
++ "space.\n");
++#ifdef DEBUG
++ INFTL_dumptables(inftl);
++ INFTL_dumpVUchains(inftl);
++#endif
++ return BLOCK_NIL;
++ }
++ }
++
++ /*
++ * Insert new block into virtual chain. Firstly update the
++ * block headers in flash...
++ */
++ anac = 0;
++ nacs = 0;
++ thisEUN = inftl->VUtable[thisVUC];
++ if (thisEUN != BLOCK_NIL) {
++ MTD_READOOB(inftl->mbd.mtd, thisEUN * inftl->EraseSize
++ + 8, 8, &retlen, (char *)&oob.u);
++ anac = oob.u.a.ANAC + 1;
++ nacs = oob.u.a.NACs + 1;
++ }
++
++ prev_block = inftl->VUtable[thisVUC];
++ if (prev_block < inftl->nb_blocks)
++ prev_block -= inftl->firstEUN;
++
++ parity = (nrbits(thisVUC, 16) & 0x1) ? 0x1 : 0;
++ parity |= (nrbits(prev_block, 16) & 0x1) ? 0x2 : 0;
++ parity |= (nrbits(anac, 8) & 0x1) ? 0x4 : 0;
++ parity |= (nrbits(nacs, 8) & 0x1) ? 0x8 : 0;
++
++ oob.u.a.virtualUnitNo = cpu_to_le16(thisVUC);
++ oob.u.a.prevUnitNo = cpu_to_le16(prev_block);
++ oob.u.a.ANAC = anac;
++ oob.u.a.NACs = nacs;
++ oob.u.a.parityPerField = parity;
++ oob.u.a.discarded = 0xaa;
++
++ MTD_WRITEOOB(inftl->mbd.mtd, writeEUN * inftl->EraseSize + 8, 8,
++ &retlen, (char *)&oob.u);
++
++ /* Also back up header... */
++ oob.u.b.virtualUnitNo = cpu_to_le16(thisVUC);
++ oob.u.b.prevUnitNo = cpu_to_le16(prev_block);
++ oob.u.b.ANAC = anac;
++ oob.u.b.NACs = nacs;
++ oob.u.b.parityPerField = parity;
++ oob.u.b.discarded = 0xaa;
++
++ MTD_WRITEOOB(inftl->mbd.mtd, writeEUN * inftl->EraseSize +
++ SECTORSIZE * 4 + 8, 8, &retlen, (char *)&oob.u);
++
++ inftl->PUtable[writeEUN] = inftl->VUtable[thisVUC];
++ inftl->VUtable[thisVUC] = writeEUN;
++
++ inftl->numfreeEUNs--;
++ return writeEUN;
++
++ } while (silly2--);
++
++ printk(KERN_WARNING "INFTL: error folding to make room for Virtual "
++ "Unit Chain 0x%x\n", thisVUC);
++ return 0xffff;
++}
++
++/*
++ * Given a Virtual Unit Chain, see if it can be deleted, and if so do it.
++ */
++static void INFTL_trydeletechain(struct INFTLrecord *inftl, unsigned thisVUC)
++{
++ unsigned char BlockUsed[MAX_SECTORS_PER_UNIT];
++ unsigned char BlockDeleted[MAX_SECTORS_PER_UNIT];
++ unsigned int thisEUN, status;
++ int block, silly;
++ struct inftl_bci bci;
++ size_t retlen;
++
++ DEBUG(MTD_DEBUG_LEVEL3, "INFTL: INFTL_trydeletechain(inftl=0x%x,"
++ "thisVUC=%d)\n", (int)inftl, thisVUC);
++
++ memset(BlockUsed, 0, sizeof(BlockUsed));
++ memset(BlockDeleted, 0, sizeof(BlockDeleted));
++
++ thisEUN = inftl->VUtable[thisVUC];
++ if (thisEUN == BLOCK_NIL) {
++ printk(KERN_WARNING "INFTL: trying to delete non-existent "
++ "Virtual Unit Chain %d!\n", thisVUC);
++ return;
++ }
++
++ /*
++ * Scan through the Erase Units to determine whether any data is in
++ * each of the 512-byte blocks within the Chain.
++ */
++ silly = MAX_LOOPS;
++ while (thisEUN < inftl->nb_blocks) {
++ for (block = 0; block < inftl->EraseSize/SECTORSIZE; block++) {
++ if (BlockUsed[block] || BlockDeleted[block])
++ continue;
++
++ if (MTD_READOOB(inftl->mbd.mtd, (thisEUN * inftl->EraseSize)
++ + (block * SECTORSIZE), 8 , &retlen,
++ (char *)&bci) < 0)
++ status = SECTOR_IGNORE;
++ else
++ status = bci.Status | bci.Status1;
++
++ switch(status) {
++ case SECTOR_FREE:
++ case SECTOR_IGNORE:
++ break;
++ case SECTOR_USED:
++ BlockUsed[block] = 1;
++ continue;
++ case SECTOR_DELETED:
++ BlockDeleted[block] = 1;
++ continue;
++ default:
++ printk(KERN_WARNING "INFTL: unknown status "
++ "for block %d in EUN %d: 0x%x\n",
++ block, thisEUN, status);
++ }
++ }
++
++ if (!silly--) {
++ printk(KERN_WARNING "INFTL: infinite loop in Virtual "
++ "Unit Chain 0x%x\n", thisVUC);
++ return;
++ }
++
++ thisEUN = inftl->PUtable[thisEUN];
++ }
++
++ for (block = 0; block < inftl->EraseSize/SECTORSIZE; block++)
++ if (BlockUsed[block])
++ return;
++
++ /*
++ * For each block in the chain free it and make it available
++ * for future use. Erase from the oldest unit first.
++ */
++ DEBUG(MTD_DEBUG_LEVEL1, "INFTL: deleting empty VUC %d\n", thisVUC);
++
++ for (;;) {
++ u16 *prevEUN = &inftl->VUtable[thisVUC];
++ thisEUN = *prevEUN;
++
++ /* If the chain is all gone already, we're done */
++ if (thisEUN == BLOCK_NIL) {
++ DEBUG(MTD_DEBUG_LEVEL2, "INFTL: Empty VUC %d for deletion was already absent\n", thisEUN);
++ return;
++ }
++
++ /* Find oldest unit in chain. */
++ while (inftl->PUtable[thisEUN] != BLOCK_NIL) {
++ BUG_ON(thisEUN >= inftl->nb_blocks);
++
++ prevEUN = &inftl->PUtable[thisEUN];
++ thisEUN = *prevEUN;
++ }
++
++ DEBUG(MTD_DEBUG_LEVEL3, "Deleting EUN %d from VUC %d\n",
++ thisEUN, thisVUC);
++
++ if (INFTL_formatblock(inftl, thisEUN) < 0) {
++ /*
++ * Could not erase : mark block as reserved.
++ * FixMe: Update Bad Unit Table on medium.
++ */
++ inftl->PUtable[thisEUN] = BLOCK_RESERVED;
++ } else {
++ /* Correctly erased : mark it as free */
++ inftl->PUtable[thisEUN] = BLOCK_FREE;
++ inftl->numfreeEUNs++;
++ }
++
++ /* Now sort out whatever was pointing to it... */
++ *prevEUN = BLOCK_NIL;
++
++ /* Ideally we'd actually be responsive to new
++ requests while we're doing this -- if there's
++ free space why should others be made to wait? */
++ cond_resched();
++ }
++
++ inftl->VUtable[thisVUC] = BLOCK_NIL;
++}
++
++static int INFTL_deleteblock(struct INFTLrecord *inftl, unsigned block)
++{
++ unsigned int thisEUN = inftl->VUtable[block / (inftl->EraseSize / SECTORSIZE)];
++ unsigned long blockofs = (block * SECTORSIZE) & (inftl->EraseSize - 1);
++ unsigned int status;
++ int silly = MAX_LOOPS;
++ size_t retlen;
++ struct inftl_bci bci;
++
++ DEBUG(MTD_DEBUG_LEVEL3, "INFTL: INFTL_deleteblock(inftl=0x%x,"
++ "block=%d)\n", (int)inftl, block);
++
++ while (thisEUN < inftl->nb_blocks) {
++ if (MTD_READOOB(inftl->mbd.mtd, (thisEUN * inftl->EraseSize) +
++ blockofs, 8, &retlen, (char *)&bci) < 0)
++ status = SECTOR_IGNORE;
++ else
++ status = bci.Status | bci.Status1;
++
++ switch (status) {
++ case SECTOR_FREE:
++ case SECTOR_IGNORE:
++ break;
++ case SECTOR_DELETED:
++ thisEUN = BLOCK_NIL;
++ goto foundit;
++ case SECTOR_USED:
++ goto foundit;
++ default:
++ printk(KERN_WARNING "INFTL: unknown status for "
++ "block %d in EUN %d: 0x%x\n",
++ block, thisEUN, status);
++ break;
++ }
++
++ if (!silly--) {
++ printk(KERN_WARNING "INFTL: infinite loop in Virtual "
++ "Unit Chain 0x%x\n",
++ block / (inftl->EraseSize / SECTORSIZE));
++ return 1;
++ }
++ thisEUN = inftl->PUtable[thisEUN];
++ }
++
++foundit:
++ if (thisEUN != BLOCK_NIL) {
++ loff_t ptr = (thisEUN * inftl->EraseSize) + blockofs;
++
++ if (MTD_READOOB(inftl->mbd.mtd, ptr, 8, &retlen, (char *)&bci) < 0)
++ return -EIO;
++ bci.Status = bci.Status1 = SECTOR_DELETED;
++ if (MTD_WRITEOOB(inftl->mbd.mtd, ptr, 8, &retlen, (char *)&bci) < 0)
++ return -EIO;
++ INFTL_trydeletechain(inftl, block / (inftl->EraseSize / SECTORSIZE));
++ }
++ return 0;
++}
++
++static int inftl_writeblock(struct mtd_blktrans_dev *mbd, unsigned long block,
++ char *buffer)
++{
++ struct INFTLrecord *inftl = (void *)mbd;
++ unsigned int writeEUN;
++ unsigned long blockofs = (block * SECTORSIZE) & (inftl->EraseSize - 1);
++ size_t retlen;
++ u8 eccbuf[6];
++ char *p, *pend;
++
++ DEBUG(MTD_DEBUG_LEVEL3, "INFTL: inftl_writeblock(inftl=0x%x,block=%d,"
++ "buffer=0x%x)\n", (int)inftl, block, (int)buffer);
++
++ /* Is block all zero? */
++ pend = buffer + SECTORSIZE;
++ for (p = buffer; p < pend && !*p; p++)
++ ;
++
++ if (p < pend) {
++ writeEUN = INFTL_findwriteunit(inftl, block);
++
++ if (writeEUN == BLOCK_NIL) {
++ printk(KERN_WARNING "inftl_writeblock(): cannot find "
++ "block to write to\n");
++ /*
++ * If we _still_ haven't got a block to use,
++ * we're screwed.
++ */
++ return 1;
++ }
++
++ MTD_WRITEECC(inftl->mbd.mtd, (writeEUN * inftl->EraseSize) +
++ blockofs, SECTORSIZE, &retlen, (char *)buffer,
++ (char *)eccbuf, NULL);
++ /*
++ * No need to write SECTOR_USED flags since they are written
++ * in mtd_writeecc
++ */
++ } else {
++ INFTL_deleteblock(inftl, block);
++ }
++
++ return 0;
++}
++
++static int inftl_readblock(struct mtd_blktrans_dev *mbd, unsigned long block,
++ char *buffer)
++{
++ struct INFTLrecord *inftl = (void *)mbd;
++ unsigned int thisEUN = inftl->VUtable[block / (inftl->EraseSize / SECTORSIZE)];
++ unsigned long blockofs = (block * SECTORSIZE) & (inftl->EraseSize - 1);
++ unsigned int status;
++ int silly = MAX_LOOPS;
++ struct inftl_bci bci;
++ size_t retlen;
++
++ DEBUG(MTD_DEBUG_LEVEL3, "INFTL: inftl_readblock(inftl=0x%x,block=%d,"
++ "buffer=0x%x)\n", (int)inftl, block, (int)buffer);
++
++ while (thisEUN < inftl->nb_blocks) {
++ if (MTD_READOOB(inftl->mbd.mtd, (thisEUN * inftl->EraseSize) +
++ blockofs, 8, &retlen, (char *)&bci) < 0)
++ status = SECTOR_IGNORE;
++ else
++ status = bci.Status | bci.Status1;
++
++ switch (status) {
++ case SECTOR_DELETED:
++ thisEUN = BLOCK_NIL;
++ goto foundit;
++ case SECTOR_USED:
++ goto foundit;
++ case SECTOR_FREE:
++ case SECTOR_IGNORE:
++ break;
++ default:
++ printk(KERN_WARNING "INFTL: unknown status for "
++ "block %ld in EUN %d: 0x%04x\n",
++ block, thisEUN, status);
++ break;
++ }
++
++ if (!silly--) {
++ printk(KERN_WARNING "INFTL: infinite loop in "
++ "Virtual Unit Chain 0x%lx\n",
++ block / (inftl->EraseSize / SECTORSIZE));
++ return 1;
++ }
++
++ thisEUN = inftl->PUtable[thisEUN];
++ }
++
++foundit:
++ if (thisEUN == BLOCK_NIL) {
++ /* The requested block is not on the media, return all 0x00 */
++ memset(buffer, 0, SECTORSIZE);
++ } else {
++ size_t retlen;
++ loff_t ptr = (thisEUN * inftl->EraseSize) + blockofs;
++ u_char eccbuf[6];
++ if (MTD_READECC(inftl->mbd.mtd, ptr, SECTORSIZE, &retlen,
++ buffer, eccbuf, NULL))
++ return -EIO;
++ }
++ return 0;
++}
++
++static int inftl_getgeo(struct mtd_blktrans_dev *dev, struct hd_geometry *geo)
++{
++ struct INFTLrecord *inftl = (void *)dev;
++
++ geo->heads = inftl->heads;
++ geo->sectors = inftl->sectors;
++ geo->cylinders = inftl->cylinders;
++
++ return 0;
++}
++
++struct mtd_blktrans_ops inftl_tr = {
++ .name = "inftl",
++ .major = INFTL_MAJOR,
++ .part_bits = INFTL_PARTN_BITS,
++ .getgeo = inftl_getgeo,
++ .readsect = inftl_readblock,
++ .writesect = inftl_writeblock,
++ .add_mtd = inftl_add_mtd,
++ .remove_dev = inftl_remove_dev,
++ .owner = THIS_MODULE,
++};
++
++extern char inftlmountrev[];
++
++int __init init_inftl(void)
++{
++ printk(KERN_INFO "INFTL: inftlcore.c $Revision: 1.14 $, "
++ "inftlmount.c %s\n", inftlmountrev);
++
++ return register_mtd_blktrans(&inftl_tr);
++}
++
++static void __exit cleanup_inftl(void)
++{
++ deregister_mtd_blktrans(&inftl_tr);
++}
++
++module_init(init_inftl);
++module_exit(cleanup_inftl);
++
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("Greg Ungerer <gerg@snapgear.com>, David Woodhouse <dwmw2@infradead.org>, Fabrice Bellard <fabrice.bellard@netgem.com> et al.");
++MODULE_DESCRIPTION("Support code for Inverse Flash Translation Layer, used on M-Systems DiskOnChip 2000, Millennium and Millennium Plus");
+diff -Nurb linux-mips-2.4.27/drivers/mtd/inftlmount.c linux/drivers/mtd/inftlmount.c
+--- linux-mips-2.4.27/drivers/mtd/inftlmount.c 1970-01-01 01:00:00.000000000 +0100
++++ linux/drivers/mtd/inftlmount.c 2004-11-19 10:25:11.633240224 +0100
+@@ -0,0 +1,817 @@
++/*
++ * inftlmount.c -- INFTL mount code with extensive checks.
++ *
++ * Author: Greg Ungerer (gerg@snapgear.com)
++ * (C) Copyright 2002-2003, Greg Ungerer (gerg@snapgear.com)
++ *
++ * Based heavily on the nftlmount.c code which is:
++ * Author: Fabrice Bellard (fabrice.bellard@netgem.com)
++ * Copyright (C) 2000 Netgem S.A.
++ *
++ * $Id: inftlmount.c,v 1.12 2003/06/26 07:31:36 dwmw2 Exp $
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License as published by
++ * the Free Software Foundation; either version 2 of the License, or
++ * (at your option) any later version.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ * GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
++ */
++
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <asm/errno.h>
++#include <asm/io.h>
++#include <asm/uaccess.h>
++#include <linux/miscdevice.h>
++#include <linux/pci.h>
++#include <linux/delay.h>
++#include <linux/slab.h>
++#include <linux/sched.h>
++#include <linux/init.h>
++#include <linux/mtd/mtd.h>
++#include <linux/mtd/nftl.h>
++#include <linux/mtd/inftl.h>
++#include <linux/mtd/compatmac.h>
++
++char inftlmountrev[]="$Revision: 1.12 $";
++
++/*
++ * find_boot_record: Find the INFTL Media Header and its Spare copy which
++ * contains the various device information of the INFTL partition and
++ * Bad Unit Table. Update the PUtable[] table according to the Bad
++ * Unit Table. PUtable[] is used for management of Erase Unit in
++ * other routines in inftlcore.c and inftlmount.c.
++ */
++static int find_boot_record(struct INFTLrecord *inftl)
++{
++ struct inftl_unittail h1;
++ //struct inftl_oob oob;
++ unsigned int i, block, boot_record_count = 0;
++ u8 buf[SECTORSIZE];
++ struct INFTLMediaHeader *mh = &inftl->MediaHdr;
++ struct INFTLPartition *ip;
++ int retlen;
++
++ DEBUG(MTD_DEBUG_LEVEL3, "INFTL: find_boot_record(inftl=0x%x)\n",
++ (int)inftl);
++
++ /*
++ * Assume logical EraseSize == physical erasesize for starting the
++ * scan. We'll sort it out later if we find a MediaHeader which says
++ * otherwise.
++ */
++ inftl->EraseSize = inftl->mbd.mtd->erasesize;
++ inftl->nb_blocks = inftl->mbd.mtd->size / inftl->EraseSize;
++
++ inftl->MediaUnit = BLOCK_NIL;
++ inftl->SpareMediaUnit = BLOCK_NIL;
++
++ /* Search for a valid boot record */
++ for (block = 0; block < inftl->nb_blocks; block++) {
++ int ret;
++
++ /*
++ * Check for BNAND header first. Then whinge if it's found
++ * but later checks fail.
++ */
++ if ((ret = MTD_READ(inftl->mbd.mtd, block * inftl->EraseSize,
++ SECTORSIZE, &retlen, buf))) {
++ static int warncount = 5;
++
++ if (warncount) {
++ printk(KERN_WARNING "INFTL: block read at 0x%x "
++ "of mtd%d failed: %d\n",
++ block * inftl->EraseSize,
++ inftl->mbd.mtd->index, ret);
++ if (!--warncount)
++ printk(KERN_WARNING "INFTL: further "
++ "failures for this block will "
++ "not be printed\n");
++ }
++ continue;
++ }
++
++ if (retlen < 6 || memcmp(buf, "BNAND", 6)) {
++ /* BNAND\0 not found. Continue */
++ continue;
++ }
++
++ /* To be safer with BIOS, also use erase mark as discriminant */
++ if ((ret = MTD_READOOB(inftl->mbd.mtd, block * inftl->EraseSize +
++ SECTORSIZE + 8, 8, &retlen, (char *)&h1) < 0)) {
++ printk(KERN_WARNING "INFTL: ANAND header found at "
++ "0x%x in mtd%d, but OOB data read failed "
++ "(err %d)\n", block * inftl->EraseSize,
++ inftl->mbd.mtd->index, ret);
++ continue;
++ }
++
++ if (boot_record_count) {
++ /*
++ * We've already processed one. So we just check if
++ * this one is the same as the first one we found.
++ */
++ if (memcmp(mh, buf, sizeof(struct INFTLMediaHeader))) {
++ printk(KERN_WARNING "INFTL: Media Headers at "
++ "0x%x and 0x%x disagree.\n",
++ inftl->MediaUnit * inftl->EraseSize,
++ block * inftl->EraseSize);
++ return -1;
++ }
++ if (boot_record_count == 1)
++ inftl->SpareMediaUnit = block;
++
++ /*
++ * Mark this boot record (INFTL MediaHeader) block as
++ * reserved.
++ */
++ inftl->PUtable[block] = BLOCK_RESERVED;
++
++ boot_record_count++;
++ continue;
++ }
++
++ /*
++ * This is the first we've seen.
++ * Copy the media header structure into place.
++ */
++ memcpy(mh, buf, sizeof(struct INFTLMediaHeader));
++ mh->NoOfBootImageBlocks = le32_to_cpu(mh->NoOfBootImageBlocks);
++ mh->NoOfBinaryPartitions = le32_to_cpu(mh->NoOfBinaryPartitions);
++ mh->NoOfBDTLPartitions = le32_to_cpu(mh->NoOfBDTLPartitions);
++ mh->BlockMultiplierBits = le32_to_cpu(mh->BlockMultiplierBits);
++ mh->FormatFlags = le32_to_cpu(mh->FormatFlags);
++ mh->PercentUsed = le32_to_cpu(mh->PercentUsed);
++
++#ifdef CONFIG_MTD_DEBUG_VERBOSE
++ if (CONFIG_MTD_DEBUG_VERBOSE >= 2) {
++ printk("INFTL: Media Header ->\n"
++ " bootRecordID = %s\n"
++ " NoOfBootImageBlocks = %d\n"
++ " NoOfBinaryPartitions = %d\n"
++ " NoOfBDTLPartitions = %d\n"
++ " BlockMultiplerBits = %d\n"
++ " FormatFlgs = %d\n"
++ " OsakVersion = 0x%x\n"
++ " PercentUsed = %d\n",
++ mh->bootRecordID, mh->NoOfBootImageBlocks,
++ mh->NoOfBinaryPartitions,
++ mh->NoOfBDTLPartitions,
++ mh->BlockMultiplierBits, mh->FormatFlags,
++ mh->OsakVersion, mh->PercentUsed);
++ }
++#endif
++
++ if (mh->NoOfBDTLPartitions == 0) {
++ printk(KERN_WARNING "INFTL: Media Header sanity check "
++ "failed: NoOfBDTLPartitions (%d) == 0, "
++ "must be at least 1\n", mh->NoOfBDTLPartitions);
++ return -1;
++ }
++
++ if ((mh->NoOfBDTLPartitions + mh->NoOfBinaryPartitions) > 4) {
++ printk(KERN_WARNING "INFTL: Media Header sanity check "
++ "failed: Total Partitions (%d) > 4, "
++ "BDTL=%d Binary=%d\n", mh->NoOfBDTLPartitions +
++ mh->NoOfBinaryPartitions,
++ mh->NoOfBDTLPartitions,
++ mh->NoOfBinaryPartitions);
++ return -1;
++ }
++
++ if (mh->BlockMultiplierBits > 1) {
++ printk(KERN_WARNING "INFTL: sorry, we don't support "
++ "UnitSizeFactor 0x%02x\n",
++ mh->BlockMultiplierBits);
++ return -1;
++ } else if (mh->BlockMultiplierBits == 1) {
++ printk(KERN_WARNING "INFTL: support for INFTL with "
++ "UnitSizeFactor 0x%02x is experimental\n",
++ mh->BlockMultiplierBits);
++ inftl->EraseSize = inftl->mbd.mtd->erasesize <<
++ (0xff - mh->BlockMultiplierBits);
++ inftl->nb_blocks = inftl->mbd.mtd->size / inftl->EraseSize;
++ }
++
++ /* Scan the partitions */
++ for (i = 0; (i < 4); i++) {
++ ip = &mh->Partitions[i];
++ ip->virtualUnits = le32_to_cpu(ip->virtualUnits);
++ ip->firstUnit = le32_to_cpu(ip->firstUnit);
++ ip->lastUnit = le32_to_cpu(ip->lastUnit);
++ ip->flags = le32_to_cpu(ip->flags);
++ ip->spareUnits = le32_to_cpu(ip->spareUnits);
++ ip->Reserved0 = le32_to_cpu(ip->Reserved0);
++
++#ifdef CONFIG_MTD_DEBUG_VERBOSE
++ if (CONFIG_MTD_DEBUG_VERBOSE >= 2) {
++ printk(" PARTITION[%d] ->\n"
++ " virtualUnits = %d\n"
++ " firstUnit = %d\n"
++ " lastUnit = %d\n"
++ " flags = 0x%x\n"
++ " spareUnits = %d\n",
++ i, ip->virtualUnits, ip->firstUnit,
++ ip->lastUnit, ip->flags,
++ ip->spareUnits);
++ }
++#endif
++
++ if (ip->Reserved0 != ip->firstUnit) {
++ struct erase_info *instr = &inftl->instr;
++
++ /*
++ * Most likely this is using the
++ * undocumented qiuck mount feature.
++ * We don't support that, we will need
++ * to erase the hidden block for full
++ * compatibility.
++ */
++ instr->addr = ip->Reserved0 * inftl->EraseSize;
++ instr->len = inftl->EraseSize;
++ MTD_ERASE(inftl->mbd.mtd, instr);
++ }
++ if ((ip->lastUnit - ip->firstUnit + 1) < ip->virtualUnits) {
++ printk(KERN_WARNING "INFTL: Media Header "
++ "Partition %d sanity check failed\n"
++ " firstUnit %d : lastUnit %d > "
++ "virtualUnits %d\n", i, ip->lastUnit,
++ ip->firstUnit, ip->Reserved0);
++ return -1;
++ }
++ if (ip->Reserved1 != 0) {
++ printk(KERN_WARNING "INFTL: Media Header "
++ "Partition %d sanity check failed: "
++ "Reserved1 %d != 0\n",
++ i, ip->Reserved1);
++ return -1;
++ }
++
++ if (ip->flags & INFTL_BDTL)
++ break;
++ }
++
++ if (i >= 4) {
++ printk(KERN_WARNING "INFTL: Media Header Partition "
++ "sanity check failed:\n No partition "
++ "marked as Disk Partition\n");
++ return -1;
++ }
++
++ inftl->nb_boot_blocks = ip->firstUnit;
++ inftl->numvunits = ip->virtualUnits;
++ if (inftl->numvunits > (inftl->nb_blocks -
++ inftl->nb_boot_blocks - 2)) {
++ printk(KERN_WARNING "INFTL: Media Header sanity check "
++ "failed:\n numvunits (%d) > nb_blocks "
++ "(%d) - nb_boot_blocks(%d) - 2\n",
++ inftl->numvunits, inftl->nb_blocks,
++ inftl->nb_boot_blocks);
++ return -1;
++ }
++
++ inftl->mbd.size = inftl->numvunits *
++ (inftl->EraseSize / SECTORSIZE);
++
++ /*
++ * Block count is set to last used EUN (we won't need to keep
++ * any meta-data past that point).
++ */
++ inftl->firstEUN = ip->firstUnit;
++ inftl->lastEUN = ip->lastUnit;
++ inftl->nb_blocks = ip->lastUnit + 1;
++
++ /* Memory alloc */
++ inftl->PUtable = kmalloc(inftl->nb_blocks * sizeof(u16), GFP_KERNEL);
++ if (!inftl->PUtable) {
++ printk(KERN_WARNING "INFTL: allocation of PUtable "
++ "failed (%d bytes)\n",
++ inftl->nb_blocks * sizeof(u16));
++ return -ENOMEM;
++ }
++
++ inftl->VUtable = kmalloc(inftl->nb_blocks * sizeof(u16), GFP_KERNEL);
++ if (!inftl->VUtable) {
++ kfree(inftl->PUtable);
++ printk(KERN_WARNING "INFTL: allocation of VUtable "
++ "failed (%d bytes)\n",
++ inftl->nb_blocks * sizeof(u16));
++ return -ENOMEM;
++ }
++
++ /* Mark the blocks before INFTL MediaHeader as reserved */
++ for (i = 0; i < inftl->nb_boot_blocks; i++)
++ inftl->PUtable[i] = BLOCK_RESERVED;
++ /* Mark all remaining blocks as potentially containing data */
++ for (; i < inftl->nb_blocks; i++)
++ inftl->PUtable[i] = BLOCK_NOTEXPLORED;
++
++ /* Mark this boot record (NFTL MediaHeader) block as reserved */
++ inftl->PUtable[block] = BLOCK_RESERVED;
++
++#if 0
++ /* Read Bad Erase Unit Table and modify PUtable[] accordingly */
++ for (i = 0; i < inftl->nb_blocks; i++) {
++ if ((i & (SECTORSIZE - 1)) == 0) {
++ /* read one sector for every SECTORSIZE of blocks */
++ if ((ret = MTD_READECC(inftl->mbd.mtd,
++ block * inftl->EraseSize + i + SECTORSIZE,
++ SECTORSIZE, &retlen, buf,
++ (char *)&oob, NULL)) < 0) {
++ printk(KERN_WARNING "INFTL: read of "
++ "bad sector table failed "
++ "(err %d)\n", ret);
++ kfree(inftl->VUtable);
++ kfree(inftl->PUtable);
++ return -1;
++ }
++ }
++ /* Mark the Bad Erase Unit as RESERVED in PUtable */
++ if (buf[i & (SECTORSIZE - 1)] != 0xff)
++ inftl->PUtable[i] = BLOCK_RESERVED;
++ }
++#endif
++
++ inftl->MediaUnit = block;
++ boot_record_count++;
++ }
++
++ return boot_record_count ? 0 : -1;
++}
++
++static int memcmpb(void *a, int c, int n)
++{
++ int i;
++ for (i = 0; i < n; i++) {
++ if (c != ((unsigned char *)a)[i])
++ return 1;
++ }
++ return 0;
++}
++
++/*
++ * check_free_sector: check if a free sector is actually FREE,
++ * i.e. All 0xff in data and oob area.
++ */
++static int check_free_sectors(struct INFTLrecord *inftl, unsigned int address,
++ int len, int check_oob)
++{
++ int i, retlen;
++ u8 buf[SECTORSIZE];
++
++ DEBUG(MTD_DEBUG_LEVEL3, "INFTL: check_free_sectors(inftl=0x%x,"
++ "address=0x%x,len=%d,check_oob=%d)\n", (int)inftl,
++ address, len, check_oob);
++
++ for (i = 0; i < len; i += SECTORSIZE) {
++ /*
++ * We want to read the sector without ECC check here since a
++ * free sector does not have ECC syndrome on it yet.
++ */
++ if (MTD_READ(inftl->mbd.mtd, address, SECTORSIZE, &retlen, buf) < 0)
++ return -1;
++ if (memcmpb(buf, 0xff, SECTORSIZE) != 0)
++ return -1;
++
++ if (check_oob) {
++ if (MTD_READOOB(inftl->mbd.mtd, address,
++ inftl->mbd.mtd->oobsize, &retlen, buf) < 0)
++ return -1;
++ if (memcmpb(buf, 0xff, inftl->mbd.mtd->oobsize) != 0)
++ return -1;
++ }
++ address += SECTORSIZE;
++ }
++
++ return 0;
++}
++
++/*
++ * INFTL_format: format a Erase Unit by erasing ALL Erase Zones in the Erase
++ * Unit and Update INFTL metadata. Each erase operation is
++ * checked with check_free_sectors.
++ *
++ * Return: 0 when succeed, -1 on error.
++ *
++ * ToDo: 1. Is it neceressary to check_free_sector after erasing ??
++ * 2. UnitSizeFactor != 0xFF
++ */
++int INFTL_formatblock(struct INFTLrecord *inftl, int block)
++{
++ int retlen;
++ struct inftl_unittail uci;
++ struct erase_info *instr = &inftl->instr;
++
++ DEBUG(MTD_DEBUG_LEVEL3, "INFTL: INFTL_formatblock(inftl=0x%x,"
++ "block=%d)\n", (int)inftl, block);
++
++ memset(instr, 0, sizeof(struct erase_info));
++
++ /* FIXME: Shouldn't we be setting the 'discarded' flag to zero
++ _first_? */
++
++ /* Use async erase interface, test return code */
++ instr->addr = block * inftl->EraseSize;
++ instr->len = inftl->EraseSize;
++ MTD_ERASE(inftl->mbd.mtd, instr);
++
++ if (instr->state == MTD_ERASE_FAILED) {
++ /*
++ * Could not format, FixMe: We should update the BadUnitTable
++ * both in memory and on disk.
++ */
++ printk(KERN_WARNING "INFTL: error while formatting block %d\n",
++ block);
++ return -1;
++ }
++
++ /*
++ * Check the "freeness" of Erase Unit before updating metadata.
++ * FixMe: is this check really necessary? Since we have check the
++ * return code after the erase operation.
++ */
++ if (check_free_sectors(inftl, instr->addr, inftl->EraseSize, 1) != 0)
++ return -1;
++
++ uci.EraseMark = cpu_to_le16(ERASE_MARK);
++ uci.EraseMark1 = cpu_to_le16(ERASE_MARK);
++ uci.Reserved[0] = 0;
++ uci.Reserved[1] = 0;
++ uci.Reserved[2] = 0;
++ uci.Reserved[3] = 0;
++ if (MTD_WRITEOOB(inftl->mbd.mtd, block * inftl->EraseSize + SECTORSIZE * 2 +
++ 8, 8, &retlen, (char *)&uci) < 0)
++ return -1;
++ return 0;
++}
++
++/*
++ * format_chain: Format an invalid Virtual Unit chain. It frees all the Erase
++ * Units in a Virtual Unit Chain, i.e. all the units are disconnected.
++ *
++ * Since the chain is invalid then we will have to erase it from its
++ * head (normally for INFTL we go from the oldest). But if it has a
++ * loop then there is no oldest...
++ */
++static void format_chain(struct INFTLrecord *inftl, unsigned int first_block)
++{
++ unsigned int block = first_block, block1;
++
++ printk(KERN_WARNING "INFTL: formatting chain at block %d\n",
++ first_block);
++
++ for (;;) {
++ block1 = inftl->PUtable[block];
++
++ printk(KERN_WARNING "INFTL: formatting block %d\n", block);
++ if (INFTL_formatblock(inftl, block) < 0) {
++ /*
++ * Cannot format !!!! Mark it as Bad Unit,
++ * FixMe: update the BadUnitTable on disk.
++ */
++ inftl->PUtable[block] = BLOCK_RESERVED;
++ } else {
++ inftl->PUtable[block] = BLOCK_FREE;
++ }
++
++ /* Goto next block on the chain */
++ block = block1;
++
++ if (block == BLOCK_NIL || block >= inftl->lastEUN)
++ break;
++ }
++}
++
++void INFTL_dumptables(struct INFTLrecord *s)
++{
++ int i;
++
++ printk("-------------------------------------------"
++ "----------------------------------\n");
++
++ printk("VUtable[%d] ->", s->nb_blocks);
++ for (i = 0; i < s->nb_blocks; i++) {
++ if ((i % 8) == 0)
++ printk("\n%04x: ", i);
++ printk("%04x ", s->VUtable[i]);
++ }
++
++ printk("\n-------------------------------------------"
++ "----------------------------------\n");
++
++ printk("PUtable[%d-%d=%d] ->", s->firstEUN, s->lastEUN, s->nb_blocks);
++ for (i = 0; i <= s->lastEUN; i++) {
++ if ((i % 8) == 0)
++ printk("\n%04x: ", i);
++ printk("%04x ", s->PUtable[i]);
++ }
++
++ printk("\n-------------------------------------------"
++ "----------------------------------\n");
++
++ printk("INFTL ->\n"
++ " EraseSize = %d\n"
++ " h/s/c = %d/%d/%d\n"
++ " numvunits = %d\n"
++ " firstEUN = %d\n"
++ " lastEUN = %d\n"
++ " numfreeEUNs = %d\n"
++ " LastFreeEUN = %d\n"
++ " nb_blocks = %d\n"
++ " nb_boot_blocks = %d",
++ s->EraseSize, s->heads, s->sectors, s->cylinders,
++ s->numvunits, s->firstEUN, s->lastEUN, s->numfreeEUNs,
++ s->LastFreeEUN, s->nb_blocks, s->nb_boot_blocks);
++
++ printk("\n-------------------------------------------"
++ "----------------------------------\n");
++}
++
++void INFTL_dumpVUchains(struct INFTLrecord *s)
++{
++ int logical, block, i;
++
++ printk("-------------------------------------------"
++ "----------------------------------\n");
++
++ printk("INFTL Virtual Unit Chains:\n");
++ for (logical = 0; logical < s->nb_blocks; logical++) {
++ block = s->VUtable[logical];
++ if (block > s->nb_blocks)
++ continue;
++ printk(" LOGICAL %d --> %d ", logical, block);
++ for (i = 0; i < s->nb_blocks; i++) {
++ if (s->PUtable[block] == BLOCK_NIL)
++ break;
++ block = s->PUtable[block];
++ printk("%d ", block);
++ }
++ printk("\n");
++ }
++
++ printk("-------------------------------------------"
++ "----------------------------------\n");
++}
++
++int INFTL_mount(struct INFTLrecord *s)
++{
++ unsigned int block, first_block, prev_block, last_block;
++ unsigned int first_logical_block, logical_block, erase_mark;
++ int chain_length, do_format_chain;
++ struct inftl_unithead1 h0;
++ struct inftl_unittail h1;
++ int i, retlen;
++ u8 *ANACtable, ANAC;
++
++ DEBUG(MTD_DEBUG_LEVEL3, "INFTL: INFTL_mount(inftl=0x%x)\n", (int)s);
++
++ /* Search for INFTL MediaHeader and Spare INFTL Media Header */
++ if (find_boot_record(s) < 0) {
++ printk(KERN_WARNING "INFTL: could not find valid boot record?\n");
++ return -1;
++ }
++
++ /* Init the logical to physical table */
++ for (i = 0; i < s->nb_blocks; i++)
++ s->VUtable[i] = BLOCK_NIL;
++
++ logical_block = block = BLOCK_NIL;
++
++ /* Temporary buffer to store ANAC numbers. */
++ ANACtable = kmalloc(s->nb_blocks * sizeof(u8), GFP_KERNEL);
++ memset(ANACtable, 0, s->nb_blocks);
++
++ /*
++ * First pass is to explore each physical unit, and construct the
++ * virtual chains that exist (newest physical unit goes into VUtable).
++ * Any block that is in any way invalid will be left in the
++ * NOTEXPLORED state. Then at the end we will try to format it and
++ * mark it as free.
++ */
++ DEBUG(MTD_DEBUG_LEVEL3, "INFTL: pass 1, explore each unit\n");
++ for (first_block = s->firstEUN; first_block <= s->lastEUN; first_block++) {
++ if (s->PUtable[first_block] != BLOCK_NOTEXPLORED)
++ continue;
++
++ do_format_chain = 0;
++ first_logical_block = BLOCK_NIL;
++ last_block = BLOCK_NIL;
++ block = first_block;
++
++ for (chain_length = 0; ; chain_length++) {
++
++ if ((chain_length == 0) &&
++ (s->PUtable[block] != BLOCK_NOTEXPLORED)) {
++ /* Nothing to do here, onto next block */
++ break;
++ }
++
++ if (MTD_READOOB(s->mbd.mtd, block * s->EraseSize + 8,
++ 8, &retlen, (char *)&h0) < 0 ||
++ MTD_READOOB(s->mbd.mtd, block * s->EraseSize +
++ 2 * SECTORSIZE + 8, 8, &retlen, (char *)&h1) < 0) {
++ /* Should never happen? */
++ do_format_chain++;
++ break;
++ }
++
++ logical_block = le16_to_cpu(h0.virtualUnitNo);
++ prev_block = le16_to_cpu(h0.prevUnitNo);
++ erase_mark = le16_to_cpu((h1.EraseMark | h1.EraseMark1));
++ ANACtable[block] = h0.ANAC;
++
++ /* Previous block is relative to start of Partition */
++ if (prev_block < s->nb_blocks)
++ prev_block += s->firstEUN;
++
++ /* Already explored partial chain? */
++ if (s->PUtable[block] != BLOCK_NOTEXPLORED) {
++ /* Check if chain for this logical */
++ if (logical_block == first_logical_block) {
++ if (last_block != BLOCK_NIL)
++ s->PUtable[last_block] = block;
++ }
++ break;
++ }
++
++ /* Check for invalid block */
++ if (erase_mark != ERASE_MARK) {
++ printk(KERN_WARNING "INFTL: corrupt block %d "
++ "in chain %d, chain length %d, erase "
++ "mark 0x%x?\n", block, first_block,
++ chain_length, erase_mark);
++ /*
++ * Assume end of chain, probably incomplete
++ * fold/erase...
++ */
++ if (chain_length == 0)
++ do_format_chain++;
++ break;
++ }
++
++ /* Check for it being free already then... */
++ if ((logical_block == BLOCK_FREE) ||
++ (logical_block == BLOCK_NIL)) {
++ s->PUtable[block] = BLOCK_FREE;
++ break;
++ }
++
++ /* Sanity checks on block numbers */
++ if ((logical_block >= s->nb_blocks) ||
++ ((prev_block >= s->nb_blocks) &&
++ (prev_block != BLOCK_NIL))) {
++ if (chain_length > 0) {
++ printk(KERN_WARNING "INFTL: corrupt "
++ "block %d in chain %d?\n",
++ block, first_block);
++ do_format_chain++;
++ }
++ break;
++ }
++
++ if (first_logical_block == BLOCK_NIL) {
++ first_logical_block = logical_block;
++ } else {
++ if (first_logical_block != logical_block) {
++ /* Normal for folded chain... */
++ break;
++ }
++ }
++
++ /*
++ * Current block is valid, so if we followed a virtual
++ * chain to get here then we can set the previous
++ * block pointer in our PUtable now. Then move onto
++ * the previous block in the chain.
++ */
++ s->PUtable[block] = BLOCK_NIL;
++ if (last_block != BLOCK_NIL)
++ s->PUtable[last_block] = block;
++ last_block = block;
++ block = prev_block;
++
++ /* Check for end of chain */
++ if (block == BLOCK_NIL)
++ break;
++
++ /* Validate next block before following it... */
++ if (block > s->lastEUN) {
++ printk(KERN_WARNING "INFTL: invalid previous "
++ "block %d in chain %d?\n", block,
++ first_block);
++ do_format_chain++;
++ break;
++ }
++ }
++
++ if (do_format_chain) {
++ format_chain(s, first_block);
++ continue;
++ }
++
++ /*
++ * Looks like a valid chain then. It may not really be the
++ * newest block in the chain, but it is the newest we have
++ * found so far. We might update it in later iterations of
++ * this loop if we find something newer.
++ */
++ s->VUtable[first_logical_block] = first_block;
++ logical_block = BLOCK_NIL;
++ }
++
++#ifdef CONFIG_MTD_DEBUG_VERBOSE
++ if (CONFIG_MTD_DEBUG_VERBOSE >= 2)
++ INFTL_dumptables(s);
++#endif
++
++ /*
++ * Second pass, check for infinite loops in chains. These are
++ * possible because we don't update the previous pointers when
++ * we fold chains. No big deal, just fix them up in PUtable.
++ */
++ DEBUG(MTD_DEBUG_LEVEL3, "INFTL: pass 2, validate virtual chains\n");
++ for (logical_block = 0; logical_block < s->numvunits; logical_block++) {
++ block = s->VUtable[logical_block];
++ last_block = BLOCK_NIL;
++
++ /* Check for free/reserved/nil */
++ if (block >= BLOCK_RESERVED)
++ continue;
++
++ ANAC = ANACtable[block];
++ for (i = 0; i < s->numvunits; i++) {
++ if (s->PUtable[block] == BLOCK_NIL)
++ break;
++ if (s->PUtable[block] > s->lastEUN) {
++ printk(KERN_WARNING "INFTL: invalid prev %d, "
++ "in virtual chain %d\n",
++ s->PUtable[block], logical_block);
++ s->PUtable[block] = BLOCK_NIL;
++
++ }
++ if (ANACtable[block] != ANAC) {
++ /*
++ * Chain must point back to itself. This is ok,
++ * but we will need adjust the tables with this
++ * newest block and oldest block.
++ */
++ s->VUtable[logical_block] = block;
++ s->PUtable[last_block] = BLOCK_NIL;
++ break;
++ }
++
++ ANAC--;
++ last_block = block;
++ block = s->PUtable[block];
++ }
++
++ if (i >= s->nb_blocks) {
++ /*
++ * Uhoo, infinite chain with valid ANACS!
++ * Format whole chain...
++ */
++ format_chain(s, first_block);
++ }
++ }
++
++#ifdef CONFIG_MTD_DEBUG_VERBOSE
++ if (CONFIG_MTD_DEBUG_VERBOSE >= 2)
++ INFTL_dumptables(s);
++ if (CONFIG_MTD_DEBUG_VERBOSE >= 2)
++ INFTL_dumpVUchains(s);
++#endif
++
++ /*
++ * Third pass, format unreferenced blocks and init free block count.
++ */
++ s->numfreeEUNs = 0;
++ s->LastFreeEUN = BLOCK_NIL;
++
++ DEBUG(MTD_DEBUG_LEVEL3, "INFTL: pass 3, format unused blocks\n");
++ for (block = s->firstEUN; block <= s->lastEUN; block++) {
++ if (s->PUtable[block] == BLOCK_NOTEXPLORED) {
++ printk("INFTL: unreferenced block %d, formatting it\n",
++ block);
++ if (INFTL_formatblock(s, block) < 0)
++ s->PUtable[block] = BLOCK_RESERVED;
++ else
++ s->PUtable[block] = BLOCK_FREE;
++ }
++ if (s->PUtable[block] == BLOCK_FREE) {
++ s->numfreeEUNs++;
++ if (s->LastFreeEUN == BLOCK_NIL)
++ s->LastFreeEUN = block;
++ }
++ }
++
++ kfree(ANACtable);
++ return 0;
++}
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/Config.in linux/drivers/mtd/maps/Config.in
+--- linux-mips-2.4.27/drivers/mtd/maps/Config.in 2004-02-26 01:46:35.000000000 +0100
++++ linux/drivers/mtd/maps/Config.in 2004-11-19 10:25:11.888201464 +0100
+@@ -1,17 +1,14 @@
+ # drivers/mtd/maps/Config.in
+
+-# $Id: Config.in,v 1.43 2003/01/24 14:26:38 dwmw2 Exp $
++# $Id: Config.in,v 1.63 2003/11/26 21:26:09 dsaxena Exp $
+
+ mainmenu_option next_comment
+
+ comment 'Mapping drivers for chip access'
+
+-dep_tristate ' CFI Flash device in physical memory map' CONFIG_MTD_PHYSMAP $CONFIG_MTD_GEN_PROBE
+-if [ "$CONFIG_MTD_PHYSMAP" = "y" -o "$CONFIG_MTD_PHYSMAP" = "m" ]; then
+- hex ' Physical start address of flash mapping' CONFIG_MTD_PHYSMAP_START 0x8000000
+- hex ' Physical length of flash mapping' CONFIG_MTD_PHYSMAP_LEN 0x4000000
+- int ' Bus width in octets' CONFIG_MTD_PHYSMAP_BUSWIDTH 2
+-fi
++bool ' Support for non-linear mappings of flash chips' CONFIG_MTD_COMPLEX_MAPPINGS
++
++bool ' CFI Flash device in physical memory map' CONFIG_MTD_PHYSMAP $CONFIG_MTD_GEN_PROBE
+
+ if [ "$CONFIG_SPARC" = "y" -o "$CONFIG_SPARC64" = "y" ]; then
+ dep_tristate ' Sun Microsystems userflash support' CONFIG_MTD_SUN_UFLASH $CONFIG_MTD_CFI
+@@ -21,56 +18,68 @@
+ dep_tristate ' CFI Flash device mapped on Photron PNC-2000' CONFIG_MTD_PNC2000 $CONFIG_MTD_CFI $CONFIG_MTD_PARTITIONS
+ dep_tristate ' CFI Flash device mapped on AMD SC520 CDP' CONFIG_MTD_SC520CDP $CONFIG_MTD_CFI
+ dep_tristate ' CFI Flash device mapped on AMD NetSc520' CONFIG_MTD_NETSC520 $CONFIG_MTD_CFI $CONFIG_MTD_PARTITIONS
+- dep_tristate ' CFI Flash device mapped on Arcom SBC-GXx boards' CONFIG_MTD_SBC_GXX $CONFIG_MTD_CFI_INTELEXT $CONFIG_MTD_PARTITIONS
+- dep_tristate ' CFI Flash device mapped on Arcom ELAN-104NC' CONFIG_MTD_ELAN_104NC $CONFIG_MTD_CFI_INTELEXT $CONFIG_MTD_PARTITIONS
++ dep_tristate ' CFI Flash device mapped on Arcom SBC-GXx boards' CONFIG_MTD_SBC_GXX $CONFIG_MTD_CFI_INTELEXT $CONFIG_MTD_PARTITIONS $CONFIG_MTD_COMPLEX_MAPPINGS
++ dep_tristate ' CFI Flash device mapped on Arcom ELAN-104NC' CONFIG_MTD_ELAN_104NC $CONFIG_MTD_CFI_INTELEXT $CONFIG_MTD_PARTITIONS $CONFIG_MTD_COMPLEX_MAPPINGS
+ dep_tristate ' CFI Flash device mapped on DIL/Net PC' CONFIG_MTD_DILNETPC $CONFIG_MTD_CFI_INTELEXT $CONFIG_MTD_PARTITIONS $CONFIG_MTD_CONCAT
+ if [ "$CONFIG_MTD_DILNETPC" = "y" -o "$CONFIG_MTD_DILNETPC" = "m" ]; then
+ hex ' Size of boot partition' CONFIG_MTD_DILNETPC_BOOTSIZE 0x80000
+ fi
+- dep_tristate ' JEDEC Flash device mapped on Mixcom piggyback card' CONFIG_MTD_MIXMEM $CONFIG_MTD_JEDEC
+- dep_tristate ' JEDEC Flash device mapped on Octagon 5066 SBC' CONFIG_MTD_OCTAGON $CONFIG_MTD_JEDEC
+- dep_tristate ' JEDEC Flash device mapped on Tempustech VMAX SBC301' CONFIG_MTD_VMAX $CONFIG_MTD_JEDEC
++ dep_tristate ' JEDEC Flash device mapped on Octagon 5066 SBC' CONFIG_MTD_OCTAGON $CONFIG_MTD_JEDEC $CONFIG_MTD_COMPLEX_MAPPINGS
++ dep_tristate ' JEDEC Flash device mapped on Tempustech VMAX SBC301' CONFIG_MTD_VMAX $CONFIG_MTD_JEDEC $CONFIG_MTD_COMPLEX_MAPPINGS
+ dep_tristate ' Flash device mapped with DOCCS on NatSemi SCx200' CONFIG_MTD_SCx200_DOCFLASH $CONFIG_MTD_CFI
+ dep_tristate ' BIOS flash chip on Intel L440GX boards' CONFIG_MTD_L440GX $CONFIG_MTD_JEDECPROBE
+ dep_tristate ' ROM connected to AMD76X southbridge' CONFIG_MTD_AMD76XROM $CONFIG_MTD_GEN_PROBE
+- dep_tristate ' ROM connected to Intel Hub Controller 2' CONFIG_MTD_ICH2ROM $CONFIG_MTD_JEDECPROBE
++ dep_tristate ' ROM connected to Intel Hub Controller 2/3/4/5' CONFIG_MTD_ICHXROM $CONFIG_MTD_JEDECPROBE $CONFIG_MTD_COMPLEX_MAPPINGS
+ dep_tristate ' CFI Flash device mapped on SnapGear/SecureEdge' CONFIG_MTD_NETtel $CONFIG_MTD_PARTITIONS
+ dep_tristate ' BIOS flash chip on Intel SCB2 boards' CONFIG_MTD_SCB2_FLASH $CONFIG_MTD_GEN_PROBE
+ fi
+
+-if [ "$CONFIG_PPC" = "y" ]; then
+- dep_tristate ' CFI Flash device mapped on TQM8XXL' CONFIG_MTD_TQM8XXL $CONFIG_MTD_CFI $CONFIG_TQM8xxL
++if [ "$CONFIG_PPC32" = "y" ]; then
++ if [ "$CONFIG_6xx" = "y" -a "$CONFIG_8260" = "y" ]; then
++ dep_tristate ' Flash device on SBC8240' CONFIG_MTD_SBC8240 $CONFIG_MTD_JEDECPROBE
++ fi
++ if [ "$CONFIG_8xx" = "y" ]; then
++ if [ "$CONFIG_TQM8xxL" = "y" ]; then
++ dep_tristate ' CFI Flash device mapped on TQM8XXL' CONFIG_MTD_TQM8XXL $CONFIG_MTD_CFI
++ fi
++ if [ "$CONFIG_RPXLITE" = "y" -o "$CONFIG_RPXCLASSIC" = "y" ]; then
+ dep_tristate ' CFI Flash device mapped on RPX Lite or CLLF' CONFIG_MTD_RPXLITE $CONFIG_MTD_CFI
++ fi
++ if [ "$CONFIG_MBX" = "y" ]; then
+ dep_tristate ' System flash on MBX860 board' CONFIG_MTD_MBX860 $CONFIG_MTD_CFI
++ fi
++ if [ "$CONFIG_DBOX2" = "y" ]; then
+ dep_tristate ' CFI Flash device mapped on D-Box2' CONFIG_MTD_DBOX2 $CONFIG_MTD_CFI
++ fi
+ dep_tristate ' CFI Flash device mapping on FlagaDM' CONFIG_MTD_CFI_FLAGADM $CONFIG_MTD_CFI
+- dep_tristate ' CFI Flash device mapped on IBM Redwood-4/5' CONFIG_MTD_REDWOOD $CONFIG_MTD_CFI
++ fi
++ if [ "$CONFIG_4xx" = "y" ]; then
++ if [ "$CONFIG_40x" = "y" ]; then
++ if [ "$CONFIG_REDWOOD_4" = "y" -o "$CONFIG_REDWOOD_5" = "y" -o "$CONFIG_REDWOOD_6" = "y" ]; then
++ dep_tristate ' CFI Flash device mapped on IBM Redwood' CONFIG_MTD_REDWOOD $CONFIG_MTD_CFI
++ fi
++ dep_tristate ' CFI Flash device mapped on IBM Beech' CONFIG_MTD_BEECH $CONFIG_MTD_CFI $CONFIG_BEECH
++ dep_tristate ' CFI Flash device mapped on IBM Arctic' CONFIG_MTD_ARCTIC $CONFIG_MTD_CFI $CONFIG_ARCTIC2
++ fi
++ if [ "$CONFIG_440" = "y" ]; then
++ dep_tristate ' Flash devices mapped on IBM Ebony' CONFIG_MTD_EBONY $CONFIG_MTD_CFI $CONFIG_EBONY
++ fi
++ fi
+ fi
+
+-if [ "$CONFIG_MIPS" = "y" ]; then
+- dep_tristate ' Pb1000 MTD support' CONFIG_MTD_PB1000 $CONFIG_MIPS_PB1000
+- dep_tristate ' Pb1500 MTD support' CONFIG_MTD_PB1500 $CONFIG_MIPS_PB1500
+- dep_tristate ' Pb1100 MTD support' CONFIG_MTD_PB1100 $CONFIG_MIPS_PB1100
+- dep_tristate ' Bosporus MTD support' CONFIG_MTD_BOSPORUS $CONFIG_MIPS_BOSPORUS
+- dep_tristate ' XXS1500 boot flash device' CONFIG_MTD_XXS1500 $CONFIG_MIPS_XXS1500
+- dep_tristate ' MTX-1 flash device' CONFIG_MTD_MTX1 $CONFIG_MIPS_MTX1
+- if [ "$CONFIG_MTD_PB1500" = "y" -o "$CONFIG_MTD_PB1500" = "m" \
+- -o "$CONFIG_MTD_PB1100" = "y" -o "$CONFIG_MTD_PB1100" = "m" ]; then
+- bool ' Pb[15]00 boot flash device' CONFIG_MTD_PB1500_BOOT
+- bool ' Pb[15]00 user flash device (2nd 32MiB bank)' CONFIG_MTD_PB1500_USER
++if [ "$CONFIG_MIPS" = "y" -o "$CONFIG_MIPS64" = "y" ]; then
++ if [ "$CONFIG_MIPS_PB1000" = "y" -o "$CONFIG_MIPS_PB1100" = "y" -o "$CONFIG_MIPS_PB1500" = "y" ]; then
++ tristate ' Pb1x00 MTD support' CONFIG_MTD_PB1XXX
++ if [ "$CONFIG_MIPS_PB1500" = "y" -o "$CONFIG_MIPS_PB1100" = "m" ]; then
++ bool ' Pb1x00 boot flash device' CONFIG_MTD_PB1500_BOOT
++ bool ' Pb1x00 user flash device (2nd 32MiB bank)' CONFIG_MTD_PB1500_USER
++ fi
+ fi
+ tristate ' Db1x00 MTD support' CONFIG_MTD_DB1X00
+ if [ "$CONFIG_MTD_DB1X00" = "y" -o "$CONFIG_MTD_DB1X00" = "m" ]; then
+ bool ' Db1x00 boot flash device' CONFIG_MTD_DB1X00_BOOT
+ bool ' Db1x00 user flash device (2nd bank)' CONFIG_MTD_DB1X00_USER
+ fi
+- tristate ' Pb1550 MTD support' CONFIG_MTD_PB1550
+- if [ "$CONFIG_MTD_PB1550" = "y" -o "$CONFIG_MTD_PB1550" = "m" ]; then
+- bool ' Pb1550 Boot Flash' CONFIG_MTD_PB1550_BOOT
+- bool ' Pb1550 User Parameter Flash' CONFIG_MTD_PB1550_USER
+- fi
+- dep_tristate ' Hydrogen 3 MTD support' CONFIG_MTD_HYDROGEN3 $CONFIG_MIPS_HYDROGEN3
+- dep_tristate ' Mirage MTD support' CONFIG_MTD_MIRAGE $CONFIG_MIPS_MIRAGE
+ dep_tristate ' Flash chip mapping on ITE QED-4N-S01B, Globespan IVR or custom board' CONFIG_MTD_CSTM_MIPS_IXX $CONFIG_MTD_CFI $CONFIG_MTD_JEDEC $CONFIG_MTD_PARTITIONS
+ if [ "$CONFIG_MTD_CSTM_MIPS_IXX" = "y" -o "$CONFIG_MTD_CSTM_MIPS_IXX" = "m" ]; then
+ hex ' Physical start address of flash mapping' CONFIG_MTD_CSTM_MIPS_IXX_START 0x8000000
+@@ -78,7 +87,7 @@
+ int ' Bus width in octets' CONFIG_MTD_CSTM_MIPS_IXX_BUSWIDTH 2
+ fi
+ dep_tristate ' Momenco Ocelot boot flash device' CONFIG_MTD_OCELOT $CONFIG_MOMENCO_OCELOT
+- dep_tristate ' LASAT flash device' CONFIG_MTD_LASAT $CONFIG_MTD_CFI $CONFIG_LASAT
++ dep_tristate ' LASAT flash device' CONFIG_MTD_LASAT $CONFIG_LASAT
+ fi
+
+ if [ "$CONFIG_SUPERH" = "y" ]; then
+@@ -90,21 +99,24 @@
+ fi
+
+ if [ "$CONFIG_ARM" = "y" ]; then
+- dep_tristate ' CFI Flash device mapped on Nora' CONFIG_MTD_NORA $CONFIG_MTD_CFI
+ dep_tristate ' CFI Flash device mapped on ARM Integrator/P720T' CONFIG_MTD_ARM_INTEGRATOR $CONFIG_MTD_CFI
+ dep_tristate ' Cirrus CDB89712 evaluation board mappings' CONFIG_MTD_CDB89712 $CONFIG_MTD_CFI $CONFIG_ARCH_CDB89712
+ dep_tristate ' CFI Flash device mapped on StrongARM SA11x0' CONFIG_MTD_SA1100 $CONFIG_MTD_CFI $CONFIG_ARCH_SA1100 $CONFIG_MTD_PARTITIONS
+- dep_tristate ' CFI Flash device mapped on DC21285 Footbridge' CONFIG_MTD_DC21285 $CONFIG_MTD_CFI $CONFIG_ARCH_FOOTBRIDGE
++ dep_tristate ' CFI Flash device mapped on DC21285 Footbridge' CONFIG_MTD_DC21285 $CONFIG_MTD_CFI $CONFIG_ARCH_FOOTBRIDGE $CONFIG_MTD_COMPLEX_MAPPINGS
+ dep_tristate ' CFI Flash device mapped on the XScale IQ80310 board' CONFIG_MTD_IQ80310 $CONFIG_MTD_CFI $CONFIG_ARCH_IQ80310
++ dep_tristate ' CFI Flash device mapped on the XScale Lubbock board' CONFIG_MTD_LUBBOCK $CONFIG_MTD_CFI $CONFIG_ARCH_LUBBOCK
++ dep_tristate ' CFI Flash device mapped on XScale IXP425 systems' CONFIG_MTD_IXP425 $CONFIG_MTD_CFI $CONFIG_MTD_COMPLEX_MAPPINGS
+ dep_tristate ' CFI Flash device mapped on Epxa10db' CONFIG_MTD_EPXA10DB $CONFIG_MTD_CFI $CONFIG_MTD_PARTITIONS $CONFIG_ARCH_CAMELOT
+ dep_tristate ' CFI Flash device mapped on the FortuNet board' CONFIG_MTD_FORTUNET $CONFIG_MTD_CFI $CONFIG_MTD_PARTITIONS $CONFIG_SA1100_FORTUNET
+ dep_tristate ' NV-RAM mapping AUTCPU12 board' CONFIG_MTD_AUTCPU12 $CONFIG_ARCH_AUTCPU12
+ dep_tristate ' CFI Flash device mapped on EDB7312' CONFIG_MTD_EDB7312 $CONFIG_MTD_CFI
++ dep_tristate ' CFI Flash device mapped on Hynix evaluation boards' CONFIG_MTD_H720X $CONFIG_MTD_CFI
+ dep_tristate ' JEDEC Flash device mapped on impA7' CONFIG_MTD_IMPA7 $CONFIG_MTD_JEDECPROBE
+ dep_tristate ' JEDEC Flash device mapped on Ceiva/Polaroid PhotoMax Digital Picture Frame' CONFIG_MTD_CEIVA $CONFIG_MTD_JEDECPROBE $CONFIG_ARCH_CEIVA
++ dep_tristate ' NOR Flash device on TOTO board' CONFIG_MTD_NOR_TOTO $CONFIG_MTD $CONFIG_OMAP_TOTO
+ fi
+ if [ "$CONFIG_ALPHA" = "y" ]; then
+- dep_tristate ' Flash chip mapping on TSUNAMI' CONFIG_MTD_TSUNAMI $CONFIG_MTD_GENPROBE
++ dep_tristate ' Flash chip mapping on TSUNAMI' CONFIG_MTD_TSUNAMI $CONFIG_MTD_GENPROBE $CONFIG_MTD_COMPLEX_MAPPINGS
+ fi
+
+ if [ "$CONFIG_UCLINUX" = "y" ]; then
+@@ -112,7 +124,7 @@
+ fi
+
+ # This needs CFI or JEDEC, depending on the cards found.
+-dep_tristate ' PCI MTD driver' CONFIG_MTD_PCI $CONFIG_MTD $CONFIG_PCI
+-dep_tristate ' PCMCIA MTD driver' CONFIG_MTD_PCMCIA $CONFIG_MTD $CONFIG_PCMCIA
++dep_tristate ' PCI MTD driver' CONFIG_MTD_PCI $CONFIG_MTD $CONFIG_PCI $CONFIG_MTD_COMPLEX_MAPPINGS
++dep_tristate ' PCMCIA MTD driver' CONFIG_MTD_PCMCIA $CONFIG_MTD $CONFIG_PCMCIA $CONFIG_MTD_COMPLEX_MAPPINGS
+
+ endmenu
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/Makefile linux/drivers/mtd/maps/Makefile
+--- linux-mips-2.4.27/drivers/mtd/maps/Makefile 2004-02-26 01:46:35.000000000 +0100
++++ linux/drivers/mtd/maps/Makefile 2004-11-19 10:25:11.890201160 +0100
+@@ -1,12 +1,16 @@
+ #
+ # linux/drivers/maps/Makefile
+ #
+-# $Id: Makefile,v 1.37 2003/01/24 14:26:38 dwmw2 Exp $
++# $Id: Makefile.common,v 1.8 2003/11/26 21:26:09 dsaxena Exp $
+
+-BELOW25 := $(shell echo $(PATCHLEVEL) | sed s/[1234]/y/)
+-
+-ifeq ($(BELOW25),y)
++ifeq ($(PATCHLEVEL),4)
+ O_TARGET := mapslink.o
++export-objs := map_funcs.o
++endif
++
++
++ifeq ($(CONFIG_MTD_COMPLEX_MAPPINGS),y)
++obj-$(CONFIG_MTD) += map_funcs.o
+ endif
+
+ # Chip mappings
+@@ -21,19 +25,13 @@
+ obj-$(CONFIG_MTD_IQ80310) += iq80310.o
+ obj-$(CONFIG_MTD_L440GX) += l440gx.o
+ obj-$(CONFIG_MTD_AMD76XROM) += amd76xrom.o
+-obj-$(CONFIG_MTD_ICH2ROM) += ich2rom.o
++obj-$(CONFIG_MTD_ICHXROM) += ichxrom.o
+ obj-$(CONFIG_MTD_TSUNAMI) += tsunami_flash.o
++obj-$(CONFIG_MTD_LUBBOCK) += lubbock-flash.o
+ obj-$(CONFIG_MTD_MBX860) += mbx860.o
+-obj-$(CONFIG_MTD_NORA) += nora.o
+ obj-$(CONFIG_MTD_CEIVA) += ceiva.o
+ obj-$(CONFIG_MTD_OCTAGON) += octagon-5066.o
+-ifneq ($(CONFIG_MTD_PHYSMAP),n)
+- ifeq ($(CONFIG_MTD_PHYSMAP_BUSWIDTH),8)
+- obj-$(CONFIG_MTD_PHYSMAP) += physmap64.o
+- else
+- obj-$(CONFIG_MTD_PHYSMAP) += physmap.o
+- endif
+-endif
++obj-$(CONFIG_MTD_PHYSMAP) += physmap.o
+ obj-$(CONFIG_MTD_PNC2000) += pnc2000.o
+ obj-$(CONFIG_MTD_PCMCIA) += pcmciamtd.o
+ obj-$(CONFIG_MTD_RPXLITE) += rpxlite.o
+@@ -49,16 +47,9 @@
+ obj-$(CONFIG_MTD_OCELOT) += ocelot.o
+ obj-$(CONFIG_MTD_SOLUTIONENGINE)+= solutionengine.o
+ obj-$(CONFIG_MTD_PCI) += pci.o
+-obj-$(CONFIG_MTD_PB1000) += pb1xxx-flash.o
+-obj-$(CONFIG_MTD_PB1100) += pb1xxx-flash.o
+-obj-$(CONFIG_MTD_PB1500) += pb1xxx-flash.o
+-obj-$(CONFIG_MTD_XXS1500) += xxs1500.o
+-obj-$(CONFIG_MTD_MTX1) += mtx-1.o
+-obj-$(CONFIG_MTD_LASAT) += lasat.o
++obj-$(CONFIG_MTD_PB1XXX) += pb1xxx-flash.o
+ obj-$(CONFIG_MTD_DB1X00) += db1x00-flash.o
+-obj-$(CONFIG_MTD_PB1550) += pb1550-flash.o
+-obj-$(CONFIG_MTD_HYDROGEN3) += hydrogen3-flash.o
+-obj-$(CONFIG_MTD_BOSPORUS) += pb1xxx-flash.o
++obj-$(CONFIG_MTD_LASAT) += lasat.o
+ obj-$(CONFIG_MTD_AUTCPU12) += autcpu12-nvram.o
+ obj-$(CONFIG_MTD_EDB7312) += edb7312.o
+ obj-$(CONFIG_MTD_IMPA7) += impa7.o
+@@ -67,6 +58,13 @@
+ obj-$(CONFIG_MTD_UCLINUX) += uclinux.o
+ obj-$(CONFIG_MTD_NETtel) += nettel.o
+ obj-$(CONFIG_MTD_SCB2_FLASH) += scb2_flash.o
+-obj-$(CONFIG_MTD_MIRAGE) += mirage-flash.o
++obj-$(CONFIG_MTD_EBONY) += ebony.o
++obj-$(CONFIG_MTD_BEECH) += beech-mtd.o
++obj-$(CONFIG_MTD_ARCTIC) += arctic-mtd.o
++obj-$(CONFIG_MTD_H720X) += h720x-flash.o
++obj-$(CONFIG_MTD_SBC8240) += sbc8240.o
++obj-$(CONFIG_MTD_NOR_TOTO) += omap-toto-flash.o
++obj-$(CONFIG_MTD_MPC1211) += mpc1211.o
++obj-$(CONFIG_MTD_IXP425) += ixp425.o
+
+-include $(TOPDIR)/Rules.make
++-include $(TOPDIR)/Rules.make
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/amd76xrom.c linux/drivers/mtd/maps/amd76xrom.c
+--- linux-mips-2.4.27/drivers/mtd/maps/amd76xrom.c 2003-02-26 01:53:49.000000000 +0100
++++ linux/drivers/mtd/maps/amd76xrom.c 2004-11-19 10:25:11.891201008 +0100
+@@ -2,12 +2,13 @@
+ * amd76xrom.c
+ *
+ * Normal mappings of chips in physical memory
+- * $Id: amd76xrom.c,v 1.1 2002/10/18 22:45:48 eric Exp $
++ * $Id: amd76xrom.c,v 1.9 2003/10/23 23:10:59 thayne Exp $
+ */
+
+ #include <linux/module.h>
+ #include <linux/types.h>
+ #include <linux/kernel.h>
++#include <linux/init.h>
+ #include <asm/io.h>
+ #include <linux/mtd/mtd.h>
+ #include <linux/mtd/map.h>
+@@ -16,77 +17,59 @@
+ #include <linux/pci_ids.h>
+
+
++#define xstr(s) str(s)
++#define str(s) #s
++#define MOD_NAME xstr(KBUILD_BASENAME)
++
++#define MTD_DEV_NAME_LENGTH 16
++
+ struct amd76xrom_map_info {
+ struct map_info map;
+ struct mtd_info *mtd;
+ unsigned long window_addr;
+ u32 window_start, window_size;
+ struct pci_dev *pdev;
++ struct resource window_rsrc;
++ struct resource rom_rsrc;
++ char mtd_name[MTD_DEV_NAME_LENGTH];
+ };
+
+-static __u8 amd76xrom_read8(struct map_info *map, unsigned long ofs)
+-{
+- return __raw_readb(map->map_priv_1 + ofs);
+-}
+-
+-static __u16 amd76xrom_read16(struct map_info *map, unsigned long ofs)
+-{
+- return __raw_readw(map->map_priv_1 + ofs);
+-}
+
+-static __u32 amd76xrom_read32(struct map_info *map, unsigned long ofs)
+-{
+- return __raw_readl(map->map_priv_1 + ofs);
+-}
++static struct amd76xrom_map_info amd76xrom_map = {
++ .map = {
++ .name = MOD_NAME,
++ .size = 0,
++ .buswidth = 1,
++ }
++ /* remaining fields of structure are initialized to 0 */
++};
+
+-static void amd76xrom_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
+-{
+- memcpy_fromio(to, map->map_priv_1 + from, len);
+-}
+
+-static void amd76xrom_write8(struct map_info *map, __u8 d, unsigned long adr)
++static void amd76xrom_cleanup(struct amd76xrom_map_info *info)
+ {
+- __raw_writeb(d, map->map_priv_1 + adr);
+- mb();
+-}
++ u8 byte;
+
+-static void amd76xrom_write16(struct map_info *map, __u16 d, unsigned long adr)
+-{
+- __raw_writew(d, map->map_priv_1 + adr);
+- mb();
+-}
++ /* Disable writes through the rom window */
++ pci_read_config_byte(info->pdev, 0x40, &byte);
++ pci_write_config_byte(info->pdev, 0x40, byte & ~1);
+
+-static void amd76xrom_write32(struct map_info *map, __u32 d, unsigned long adr)
+-{
+- __raw_writel(d, map->map_priv_1 + adr);
+- mb();
+-}
++ if (info->mtd) {
++ del_mtd_device(info->mtd);
++ map_destroy(info->mtd);
++ info->mtd = NULL;
++ info->map.virt = 0;
++ }
++ if (info->rom_rsrc.parent)
++ release_resource(&info->rom_rsrc);
++ if (info->window_rsrc.parent)
++ release_resource(&info->window_rsrc);
+
+-static void amd76xrom_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
+-{
+- memcpy_toio(map->map_priv_1 + to, from, len);
++ if (info->window_addr) {
++ iounmap((void *)(info->window_addr));
++ info->window_addr = 0;
++ }
+ }
+
+-static struct amd76xrom_map_info amd76xrom_map = {
+- map: {
+- name: "AMD76X rom",
+- size: 0,
+- buswidth: 1,
+- read8: amd76xrom_read8,
+- read16: amd76xrom_read16,
+- read32: amd76xrom_read32,
+- copy_from: amd76xrom_copy_from,
+- write8: amd76xrom_write8,
+- write16: amd76xrom_write16,
+- write32: amd76xrom_write32,
+- copy_to: amd76xrom_copy_to,
+- /* The standard rom socket is for single power supply chips
+- * that don't have an extra vpp.
+- */
+- },
+- mtd: 0,
+- window_addr: 0,
+-};
+
+ static int __devinit amd76xrom_init_one (struct pci_dev *pdev,
+ const struct pci_device_id *ent)
+@@ -97,6 +80,10 @@
+ u8 segen_bits;
+ };
+ static struct rom_window rom_window[] = {
++ /*
++ * Need the 5MiB window for chips that have block lock/unlock
++ * registers located below 4MiB window.
++ */
+ { 0xffb00000, 5*1024*1024, (1<<7) | (1<<6), },
+ { 0xffc00000, 4*1024*1024, (1<<7), },
+ { 0xffff0000, 64*1024, 0 },
+@@ -112,19 +99,29 @@
+ int i;
+ u32 rom_size;
+
++ info->pdev = pdev;
+ window = &rom_window[0];
+-#if 0
+- while(window->size) {
+- if (request_mem_region(window->start, window->size, "amd76xrom")) {
+- break;
+- }
+- window++;
+- }
+- if (!window->size) {
+- printk(KERN_ERR "amd76xrom: cannot reserve rom window\n");
+- goto err_out_none;
++
++ while (window->size) {
++ /*
++ * Try to reserve the window mem region. If this fails then
++ * it is likely due to a fragment of the window being
++ * "reseved" by the BIOS. In the case that the
++ * request_mem_region() fails then once the rom size is
++ * discovered we will try to reserve the unreserved fragment.
++ */
++ info->window_rsrc.name = MOD_NAME;
++ info->window_rsrc.start = window->start;
++ info->window_rsrc.end = window->start + window->size - 1;
++ info->window_rsrc.flags = IORESOURCE_MEM | IORESOURCE_BUSY;
++ if (request_resource(&iomem_resource, &info->window_rsrc)) {
++ info->window_rsrc.parent = NULL;
++ printk(KERN_ERR MOD_NAME
++ " %s(): Unable to register resource"
++ " 0x%.08lx-0x%.08lx - kernel bug?\n",
++ __func__,
++ info->window_rsrc.start, info->window_rsrc.end);
+ }
+-#endif
+
+ /* Enable the selected rom window */
+ pci_read_config_byte(pdev, 0x43, &byte);
+@@ -136,49 +133,94 @@
+
+ /* FIXME handle registers 0x80 - 0x8C the bios region locks */
+
+- printk(KERN_NOTICE "amd76xrom window : %x at %x\n",
++ printk(KERN_NOTICE MOD_NAME " window : %x at %x\n",
+ window->size, window->start);
+ /* For write accesses caches are useless */
+- info->window_addr = (unsigned long)ioremap_nocache(window->start, window->size);
++ info->window_addr =
++ (unsigned long)ioremap_nocache(window->start,
++ window->size);
+
+ if (!info->window_addr) {
+ printk(KERN_ERR "Failed to ioremap\n");
+- goto err_out_free_mmio_region;
++ continue;
+ }
+- info->mtd = 0;
++
++ info->mtd = NULL;
++
+ for(i = 0; (rom_size = rom_probe_sizes[i]); i++) {
+ char **chip_type;
+ if (rom_size > window->size) {
+ continue;
+ }
+- info->map.map_priv_1 =
++ info->map.phys = window->start + window->size - rom_size;
++ info->map.virt =
+ info->window_addr + window->size - rom_size;
+ info->map.size = rom_size;
++ simple_map_init(&info->map);
+ chip_type = rom_probe_types;
+ for(; !info->mtd && *chip_type; chip_type++) {
+ info->mtd = do_map_probe(*chip_type, &amd76xrom_map.map);
+ }
+- if (info->mtd) {
+- break;
+- }
++ if (info->mtd) goto found_mtd;
+ }
+- if (!info->mtd) {
+- goto err_out_iounmap;
++ iounmap((void *)(info->window_addr));
++ info->window_addr = 0;
++
++ /* Disable writes through the rom window */
++ pci_read_config_byte(pdev, 0x40, &byte);
++ pci_write_config_byte(pdev, 0x40, byte & ~1);
++
++ window++;
+ }
+- printk(KERN_NOTICE "amd76xrom chip at offset: %x\n",
++ goto failed;
++
++ found_mtd:
++ printk(KERN_NOTICE MOD_NAME " chip at offset: 0x%x\n",
+ window->size - rom_size);
+
+- info->mtd->module = THIS_MODULE;
++ info->mtd->owner = THIS_MODULE;
++
++ if (!info->window_rsrc.parent) {
++ /* failed to reserve entire window - try fragments */
++ info->window_rsrc.name = MOD_NAME;
++ info->window_rsrc.start = window->start;
++ info->window_rsrc.end = window->start + window->size - rom_size - 1;
++ info->window_rsrc.flags = IORESOURCE_MEM | IORESOURCE_BUSY;
++ if (request_resource(&iomem_resource, &info->window_rsrc)) {
++ printk(KERN_ERR MOD_NAME
++ ": cannot reserve window resource fragment\n");
++ goto failed;
++ }
++ }
++
+ add_mtd_device(info->mtd);
+ info->window_start = window->start;
+ info->window_size = window->size;
++
++ if (info->window_rsrc.parent) {
++ /*
++ * Registering the MTD device in iomem may not be possible
++ * if there is a BIOS "reserved" and BUSY range. If this
++ * fails then continue anyway.
++ */
++ snprintf(info->mtd_name, MTD_DEV_NAME_LENGTH,
++ "mtd%d", info->mtd->index);
++
++ info->rom_rsrc.name = info->mtd_name;
++ info->rom_rsrc.start = window->start + window->size - rom_size;
++ info->rom_rsrc.end = window->start + window->size - 1;
++ info->rom_rsrc.flags = IORESOURCE_MEM | IORESOURCE_BUSY;
++ if (request_resource(&info->window_rsrc, &info->rom_rsrc)) {
++ printk(KERN_ERR MOD_NAME
++ ": cannot reserve MTD resource\n");
++ info->rom_rsrc.parent = NULL;
++ }
++ }
++
+ return 0;
+
+-err_out_iounmap:
+- iounmap((void *)(info->window_addr));
+-err_out_free_mmio_region:
+- release_mem_region(window->start, window->size);
+-err_out_none:
++ failed:
++ amd76xrom_cleanup(info);
+ return -ENODEV;
+ }
+
+@@ -186,21 +228,8 @@
+ static void __devexit amd76xrom_remove_one (struct pci_dev *pdev)
+ {
+ struct amd76xrom_map_info *info = &amd76xrom_map;
+- u8 byte;
+-
+- del_mtd_device(info->mtd);
+- map_destroy(info->mtd);
+- info->mtd = 0;
+- info->map.map_priv_1 = 0;
+-
+- iounmap((void *)(info->window_addr));
+- info->window_addr = 0;
+-
+- /* Disable writes through the rom window */
+- pci_read_config_byte(pdev, 0x40, &byte);
+- pci_write_config_byte(pdev, 0x40, byte & ~1);
+
+- release_mem_region(info->window_start, info->window_size);
++ amd76xrom_cleanup(info);
+ }
+
+ static struct pci_device_id amd76xrom_pci_tbl[] __devinitdata = {
+@@ -208,6 +237,7 @@
+ PCI_ANY_ID, PCI_ANY_ID, },
+ { PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_VIPER_7440,
+ PCI_ANY_ID, PCI_ANY_ID, },
++ { PCI_VENDOR_ID_AMD, 0x7468 }, /* amd8111 support */
+ { 0, }
+ };
+
+@@ -215,10 +245,10 @@
+
+ #if 0
+ static struct pci_driver amd76xrom_driver = {
+- name: "amd76xrom",
+- id_table: amd76xrom_pci_tbl,
+- probe: amd76xrom_init_one,
+- remove: amd76xrom_remove_one,
++ .name = MOD_NAME,
++ .id_table = amd76xrom_pci_tbl,
++ .probe = amd76xrom_init_one,
++ .remove = amd76xrom_remove_one,
+ };
+ #endif
+
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/arctic-mtd.c linux/drivers/mtd/maps/arctic-mtd.c
+--- linux-mips-2.4.27/drivers/mtd/maps/arctic-mtd.c 1970-01-01 01:00:00.000000000 +0100
++++ linux/drivers/mtd/maps/arctic-mtd.c 2004-11-19 10:25:11.893200704 +0100
+@@ -0,0 +1,135 @@
++/*
++ * $Id: arctic-mtd.c,v 1.10 2003/06/02 16:37:59 trini Exp $
++ *
++ * drivers/mtd/maps/arctic-mtd.c MTD mappings and partition tables for
++ * IBM 405LP Arctic boards.
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License as published by
++ * the Free Software Foundation; either version 2 of the License, or
++ * (at your option) any later version.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ * GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
++ *
++ * Copyright (C) 2002, International Business Machines Corporation
++ * All Rights Reserved.
++ *
++ * Bishop Brock
++ * IBM Research, Austin Center for Low-Power Computing
++ * bcbrock@us.ibm.com
++ * March 2002
++ *
++ * modified for Arctic by,
++ * David Gibson
++ * IBM OzLabs, Canberra, Australia
++ * <arctic@gibson.dropbear.id.au>
++ */
++
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/types.h>
++#include <linux/init.h>
++
++#include <linux/mtd/mtd.h>
++#include <linux/mtd/map.h>
++#include <linux/mtd/partitions.h>
++
++#include <asm/io.h>
++#include <asm/ibm4xx.h>
++
++/*
++ * 0 : 0xFE00 0000 - 0xFEFF FFFF : Filesystem 1 (16MiB)
++ * 1 : 0xFF00 0000 - 0xFF4F FFFF : kernel (5.12MiB)
++ * 2 : 0xFF50 0000 - 0xFFF5 FFFF : Filesystem 2 (10.624MiB) (if non-XIP)
++ * 3 : 0xFFF6 0000 - 0xFFFF FFFF : PIBS Firmware (640KiB)
++ */
++
++#define FFS1_SIZE 0x01000000 /* 16MiB */
++#define KERNEL_SIZE 0x00500000 /* 5.12MiB */
++#define FFS2_SIZE 0x00a60000 /* 10.624MiB */
++#define FIRMWARE_SIZE 0x000a0000 /* 640KiB */
++
++
++#define NAME "Arctic Linux Flash"
++#define PADDR SUBZERO_BOOTFLASH_PADDR
++#define BUSWIDTH 2
++#define SIZE SUBZERO_BOOTFLASH_SIZE
++#define PARTITIONS 4
++
++/* Flash memories on these boards are memory resources, accessed big-endian. */
++
++{
++ /* do nothing for now */
++}
++
++static struct map_info arctic_mtd_map = {
++ .name = NAME,
++ .size = SIZE,
++ .buswidth = BUSWIDTH,
++ .phys = PADDR,
++};
++
++static struct mtd_info *arctic_mtd;
++
++static struct mtd_partition arctic_partitions[PARTITIONS] = {
++ { .name = "Filesystem",
++ .size = FFS1_SIZE,
++ .offset = 0,},
++ { .name = "Kernel",
++ .size = KERNEL_SIZE,
++ .offset = FFS1_SIZE,},
++ { .name = "Filesystem",
++ .size = FFS2_SIZE,
++ .offset = FFS1_SIZE + KERNEL_SIZE,},
++ { .name = "Firmware",
++ .size = FIRMWARE_SIZE,
++ .offset = SUBZERO_BOOTFLASH_SIZE - FIRMWARE_SIZE,},
++};
++
++static int __init
++init_arctic_mtd(void)
++{
++ printk("%s: 0x%08x at 0x%08x\n", NAME, SIZE, PADDR);
++
++ arctic_mtd_map.virt = (unsigned long) ioremap(PADDR, SIZE);
++
++ if (!arctic_mtd_map.virt) {
++ printk("%s: failed to ioremap 0x%x\n", NAME, PADDR);
++ return -EIO;
++ }
++ simple_map_init(&arctic_mtd_map);
++
++ printk("%s: probing %d-bit flash bus\n", NAME, BUSWIDTH * 8);
++ arctic_mtd = do_map_probe("cfi_probe", &arctic_mtd_map);
++
++ if (!arctic_mtd)
++ return -ENXIO;
++
++ arctic_mtd->owner = THIS_MODULE;
++
++ return add_mtd_partitions(arctic_mtd, arctic_partitions, PARTITIONS);
++}
++
++static void __exit
++cleanup_arctic_mtd(void)
++{
++ if (arctic_mtd) {
++ del_mtd_partitions(arctic_mtd);
++ map_destroy(arctic_mtd);
++ iounmap((void *) arctic_mtd_map.virt);
++ }
++}
++
++module_init(init_arctic_mtd);
++module_exit(cleanup_arctic_mtd);
++
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("David Gibson <arctic@gibson.dropbear.id.au>");
++MODULE_DESCRIPTION("MTD map and partitions for IBM 405LP Arctic boards");
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/autcpu12-nvram.c linux/drivers/mtd/maps/autcpu12-nvram.c
+--- linux-mips-2.4.27/drivers/mtd/maps/autcpu12-nvram.c 2002-06-27 00:35:50.000000000 +0200
++++ linux/drivers/mtd/maps/autcpu12-nvram.c 2004-11-19 10:25:11.894200552 +0100
+@@ -2,7 +2,7 @@
+ * NV-RAM memory access on autcpu12
+ * (C) 2002 Thomas Gleixner (gleixner@autronix.de)
+ *
+- * $Id: autcpu12-nvram.c,v 1.1 2002/02/22 09:30:24 gleixner Exp $
++ * $Id: autcpu12-nvram.c,v 1.5 2003/05/21 12:45:18 dwmw2 Exp $
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+@@ -24,6 +24,7 @@
+ #include <linux/types.h>
+ #include <linux/kernel.h>
+ #include <linux/ioport.h>
++#include <linux/init.h>
+ #include <asm/io.h>
+ #include <asm/sizes.h>
+ #include <asm/hardware.h>
+@@ -32,80 +33,27 @@
+ #include <linux/mtd/map.h>
+ #include <linux/mtd/partitions.h>
+
+-__u8 autcpu12_read8(struct map_info *map, unsigned long ofs)
+-{
+- return __raw_readb(map->map_priv_1 + ofs);
+-}
+-
+-__u16 autcpu12_read16(struct map_info *map, unsigned long ofs)
+-{
+- return __raw_readw(map->map_priv_1 + ofs);
+-}
+-
+-__u32 autcpu12_read32(struct map_info *map, unsigned long ofs)
+-{
+- return __raw_readl(map->map_priv_1 + ofs);
+-}
+-
+-void autcpu12_write8(struct map_info *map, __u8 d, unsigned long adr)
+-{
+- __raw_writeb(d, map->map_priv_1 + adr);
+- mb();
+-}
+-
+-void autcpu12_write16(struct map_info *map, __u16 d, unsigned long adr)
+-{
+- __raw_writew(d, map->map_priv_1 + adr);
+- mb();
+-}
+-
+-void autcpu12_write32(struct map_info *map, __u32 d, unsigned long adr)
+-{
+- __raw_writel(d, map->map_priv_1 + adr);
+- mb();
+-}
+-
+-void autcpu12_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
+-{
+- memcpy_fromio(to, map->map_priv_1 + from, len);
+-}
+-
+-void autcpu12_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
+-{
+- while(len) {
+- __raw_writeb(*(unsigned char *) from, map->map_priv_1 + to);
+- from++;
+- to++;
+- len--;
+- }
+-}
+
+ static struct mtd_info *sram_mtd;
+
+ struct map_info autcpu12_sram_map = {
+- name: "SRAM",
+- size: 32768,
+- buswidth: 8,
+- read8: autcpu12_read8,
+- read16: autcpu12_read16,
+- read32: autcpu12_read32,
+- copy_from: autcpu12_copy_from,
+- write8: autcpu12_write8,
+- write16: autcpu12_write16,
+- write32: autcpu12_write32,
+- copy_to: autcpu12_copy_to
++ .name = "SRAM",
++ .size = 32768,
++ .buswidth = 4,
++ .phys = 0x12000000,
+ };
+
+ static int __init init_autcpu12_sram (void)
+ {
+ int err, save0, save1;
+
+- autcpu12_sram_map.map_priv_1 = (unsigned long)ioremap(0x12000000, SZ_128K);
+- if (!autcpu12_sram_map.map_priv_1) {
++ autcpu12_sram_map.virt = (unsigned long)ioremap(0x12000000, SZ_128K);
++ if (!autcpu12_sram_map.virt) {
+ printk("Failed to ioremap autcpu12 NV-RAM space\n");
+ err = -EIO;
+ goto out;
+ }
++ simple_map_init(&autcpu_sram_map);
+
+ /*
+ * Check for 32K/128K
+@@ -115,20 +63,20 @@
+ * Read and check result on ofs 0x0
+ * Restore contents
+ */
+- save0 = autcpu12_read32(&autcpu12_sram_map,0);
+- save1 = autcpu12_read32(&autcpu12_sram_map,0x10000);
+- autcpu12_write32(&autcpu12_sram_map,~save0,0x10000);
++ save0 = map_read32(&autcpu12_sram_map,0);
++ save1 = map_read32(&autcpu12_sram_map,0x10000);
++ map_write32(&autcpu12_sram_map,~save0,0x10000);
+ /* if we find this pattern on 0x0, we have 32K size
+ * restore contents and exit
+ */
+- if ( autcpu12_read32(&autcpu12_sram_map,0) != save0) {
+- autcpu12_write32(&autcpu12_sram_map,save0,0x0);
++ if ( map_read32(&autcpu12_sram_map,0) != save0) {
++ map_write32(&autcpu12_sram_map,save0,0x0);
+ goto map;
+ }
+ /* We have a 128K found, restore 0x10000 and set size
+ * to 128K
+ */
+- autcpu12_write32(&autcpu12_sram_map,save1,0x10000);
++ ma[_write32(&autcpu12_sram_map,save1,0x10000);
+ autcpu12_sram_map.size = SZ_128K;
+
+ map:
+@@ -139,7 +87,7 @@
+ goto out_ioremap;
+ }
+
+- sram_mtd->module = THIS_MODULE;
++ sram_mtd->owner = THIS_MODULE;
+ sram_mtd->erasesize = 16;
+
+ if (add_mtd_device(sram_mtd)) {
+@@ -148,7 +96,7 @@
+ goto out_probe;
+ }
+
+- printk("NV-RAM device size %ldK registered on AUTCPU12\n",autcpu12_sram_map.size/SZ_1K);
++ printk("NV-RAM device size %ldKiB registered on AUTCPU12\n",autcpu12_sram_map.size/SZ_1K);
+
+ return 0;
+
+@@ -157,7 +105,7 @@
+ sram_mtd = 0;
+
+ out_ioremap:
+- iounmap((void *)autcpu12_sram_map.map_priv_1);
++ iounmap((void *)autcpu12_sram_map.virt);
+ out:
+ return err;
+ }
+@@ -167,7 +115,7 @@
+ if (sram_mtd) {
+ del_mtd_device(sram_mtd);
+ map_destroy(sram_mtd);
+- iounmap((void *)autcpu12_sram_map.map_priv_1);
++ iounmap((void *)autcpu12_sram_map.virt);
+ }
+ }
+
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/beech-mtd.c linux/drivers/mtd/maps/beech-mtd.c
+--- linux-mips-2.4.27/drivers/mtd/maps/beech-mtd.c 1970-01-01 01:00:00.000000000 +0100
++++ linux/drivers/mtd/maps/beech-mtd.c 2004-11-19 10:25:11.895200400 +0100
+@@ -0,0 +1,112 @@
++/*
++ * $Id: beech-mtd.c,v 1.7 2003/05/21 12:45:18 dwmw2 Exp $
++ *
++ * drivers/mtd/maps/beech-mtd.c MTD mappings and partition tables for
++ * IBM 405LP Beech boards.
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License as published by
++ * the Free Software Foundation; either version 2 of the License, or
++ * (at your option) any later version.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ * GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
++ *
++ * Copyright (C) 2002, International Business Machines Corporation
++ * All Rights Reserved.
++ *
++ * Bishop Brock
++ * IBM Research, Austin Center for Low-Power Computing
++ * bcbrock@us.ibm.com
++ * March 2002
++ *
++ */
++
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/types.h>
++#include <linux/init.h>
++
++#include <linux/mtd/mtd.h>
++#include <linux/mtd/map.h>
++#include <linux/mtd/partitions.h>
++
++#include <asm/io.h>
++#include <asm/ibm4xx.h>
++
++#define NAME "Beech Linux Flash"
++#define PADDR BEECH_BIGFLASH_PADDR
++#define SIZE BEECH_BIGFLASH_SIZE
++#define BUSWIDTH 1
++
++/* Flash memories on these boards are memory resources, accessed big-endian. */
++
++
++static struct map_info beech_mtd_map = {
++ .name = NAME,
++ .size = SIZE,
++ .buswidth = BUSWIDTH,
++ .phys = PADDR
++};
++
++static struct mtd_info *beech_mtd;
++
++static struct mtd_partition beech_partitions[2] = {
++ {
++ .name = "Linux Kernel",
++ .size = BEECH_KERNEL_SIZE,
++ .offset = BEECH_KERNEL_OFFSET
++ }, {
++ .name = "Free Area",
++ .size = BEECH_FREE_AREA_SIZE,
++ .offset = BEECH_FREE_AREA_OFFSET
++ }
++};
++
++static int __init
++init_beech_mtd(void)
++{
++ printk("%s: 0x%08x at 0x%08x\n", NAME, SIZE, PADDR);
++
++ beech_mtd_map.virt = (unsigned long) ioremap(PADDR, SIZE);
++
++ if (!beech_mtd_map.virt) {
++ printk("%s: failed to ioremap 0x%x\n", NAME, PADDR);
++ return -EIO;
++ }
++
++ simple_map_init(&beech_mtd_map);
++
++ printk("%s: probing %d-bit flash bus\n", NAME, BUSWIDTH * 8);
++ beech_mtd = do_map_probe("cfi_probe", &beech_mtd_map);
++
++ if (!beech_mtd)
++ return -ENXIO;
++
++ beech_mtd->owner = THIS_MODULE;
++
++ return add_mtd_partitions(beech_mtd, beech_partitions, 2);
++}
++
++static void __exit
++cleanup_beech_mtd(void)
++{
++ if (beech_mtd) {
++ del_mtd_partitions(beech_mtd);
++ map_destroy(beech_mtd);
++ iounmap((void *) beech_mtd_map.virt);
++ }
++}
++
++module_init(init_beech_mtd);
++module_exit(cleanup_beech_mtd);
++
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("Bishop Brock <bcbrock@us.ibm.com>");
++MODULE_DESCRIPTION("MTD map and partitions for IBM 405LP Beech boards");
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/cdb89712.c linux/drivers/mtd/maps/cdb89712.c
+--- linux-mips-2.4.27/drivers/mtd/maps/cdb89712.c 2001-11-05 21:15:52.000000000 +0100
++++ linux/drivers/mtd/maps/cdb89712.c 2004-11-19 10:25:11.897200096 +0100
+@@ -1,13 +1,14 @@
+ /*
+ * Flash on Cirrus CDB89712
+ *
+- * $Id: cdb89712.c,v 1.3 2001/10/02 15:14:43 rmk Exp $
++ * $Id: cdb89712.c,v 1.7 2003/05/21 12:45:18 dwmw2 Exp $
+ */
+
+ #include <linux/module.h>
+ #include <linux/types.h>
+ #include <linux/kernel.h>
+ #include <linux/ioport.h>
++#include <linux/init.h>
+ #include <asm/io.h>
+ #include <asm/arch/hardware.h>
+ #include <linux/mtd/mtd.h>
+@@ -16,77 +17,21 @@
+
+
+
+-__u8 cdb89712_read8(struct map_info *map, unsigned long ofs)
+-{
+- return __raw_readb(map->map_priv_1 + ofs);
+-}
+-
+-__u16 cdb89712_read16(struct map_info *map, unsigned long ofs)
+-{
+- return __raw_readw(map->map_priv_1 + ofs);
+-}
+-
+-__u32 cdb89712_read32(struct map_info *map, unsigned long ofs)
+-{
+- return __raw_readl(map->map_priv_1 + ofs);
+-}
+-
+-void cdb89712_write8(struct map_info *map, __u8 d, unsigned long adr)
+-{
+- __raw_writeb(d, map->map_priv_1 + adr);
+- mb();
+-}
+-
+-void cdb89712_write16(struct map_info *map, __u16 d, unsigned long adr)
+-{
+- __raw_writew(d, map->map_priv_1 + adr);
+- mb();
+-}
+-
+-void cdb89712_write32(struct map_info *map, __u32 d, unsigned long adr)
+-{
+- __raw_writel(d, map->map_priv_1 + adr);
+- mb();
+-}
+-
+-void cdb89712_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
+-{
+- // printk ("cdb89712_copy_from: 0x%x@0x%x -> 0x%x\n", len, from, to);
+- memcpy_fromio(to, map->map_priv_1 + from, len);
+-}
+-
+-void cdb89712_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
+-{
+- while(len) {
+- __raw_writeb(*(unsigned char *) from, map->map_priv_1 + to);
+- from++;
+- to++;
+- len--;
+- }
+-}
+-
+
+ static struct mtd_info *flash_mtd;
+
+ struct map_info cdb89712_flash_map = {
+- name: "flash",
+- size: FLASH_SIZE,
+- buswidth: FLASH_WIDTH,
+- read8: cdb89712_read8,
+- read16: cdb89712_read16,
+- read32: cdb89712_read32,
+- copy_from: cdb89712_copy_from,
+- write8: cdb89712_write8,
+- write16: cdb89712_write16,
+- write32: cdb89712_write32,
+- copy_to: cdb89712_copy_to
++ .name = "flash",
++ .size = FLASH_SIZE,
++ .buswidth = FLASH_WIDTH,
++ .phys = FLASH_START,
+ };
+
+ struct resource cdb89712_flash_resource = {
+- name: "Flash",
+- start: FLASH_START,
+- end: FLASH_START + FLASH_SIZE - 1,
+- flags: IORESOURCE_IO | IORESOURCE_BUSY,
++ .name = "Flash",
++ .start = FLASH_START,
++ .end = FLASH_START + FLASH_SIZE - 1,
++ .flags = IORESOURCE_IO | IORESOURCE_BUSY,
+ };
+
+ static int __init init_cdb89712_flash (void)
+@@ -99,13 +44,13 @@
+ goto out;
+ }
+
+- cdb89712_flash_map.map_priv_1 = (unsigned long)ioremap(FLASH_START, FLASH_SIZE);
+- if (!cdb89712_flash_map.map_priv_1) {
++ cdb89712_flash_map.virt = (unsigned long)ioremap(FLASH_START, FLASH_SIZE);
++ if (!cdb89712_flash_map.virt) {
+ printk(KERN_NOTICE "Failed to ioremap Cdb89712 FLASH space\n");
+ err = -EIO;
+ goto out_resource;
+ }
+-
++ simple_map_init(&cdb89712_flash_map);
+ flash_mtd = do_map_probe("cfi_probe", &cdb89712_flash_map);
+ if (!flash_mtd) {
+ flash_mtd = do_map_probe("map_rom", &cdb89712_flash_map);
+@@ -118,7 +63,7 @@
+ goto out_ioremap;
+ }
+
+- flash_mtd->module = THIS_MODULE;
++ flash_mtd->owner = THIS_MODULE;
+
+ if (add_mtd_device(flash_mtd)) {
+ printk("FLASH device addition failed\n");
+@@ -132,7 +77,7 @@
+ map_destroy(flash_mtd);
+ flash_mtd = 0;
+ out_ioremap:
+- iounmap((void *)cdb89712_flash_map.map_priv_1);
++ iounmap((void *)cdb89712_flash_map.virt);
+ out_resource:
+ release_resource (&cdb89712_flash_resource);
+ out:
+@@ -146,24 +91,17 @@
+ static struct mtd_info *sram_mtd;
+
+ struct map_info cdb89712_sram_map = {
+- name: "SRAM",
+- size: SRAM_SIZE,
+- buswidth: SRAM_WIDTH,
+- read8: cdb89712_read8,
+- read16: cdb89712_read16,
+- read32: cdb89712_read32,
+- copy_from: cdb89712_copy_from,
+- write8: cdb89712_write8,
+- write16: cdb89712_write16,
+- write32: cdb89712_write32,
+- copy_to: cdb89712_copy_to
++ .name = "SRAM",
++ .size = SRAM_SIZE,
++ .buswidth = SRAM_WIDTH,
++ .phys = SRAM_START,
+ };
+
+ struct resource cdb89712_sram_resource = {
+- name: "SRAM",
+- start: SRAM_START,
+- end: SRAM_START + SRAM_SIZE - 1,
+- flags: IORESOURCE_IO | IORESOURCE_BUSY,
++ .name = "SRAM",
++ .start = SRAM_START,
++ .end = SRAM_START + SRAM_SIZE - 1,
++ .flags = IORESOURCE_IO | IORESOURCE_BUSY,
+ };
+
+ static int __init init_cdb89712_sram (void)
+@@ -176,13 +114,13 @@
+ goto out;
+ }
+
+- cdb89712_sram_map.map_priv_1 = (unsigned long)ioremap(SRAM_START, SRAM_SIZE);
+- if (!cdb89712_sram_map.map_priv_1) {
++ cdb89712_sram_map.virt = (unsigned long)ioremap(SRAM_START, SRAM_SIZE);
++ if (!cdb89712_sram_map.virt) {
+ printk(KERN_NOTICE "Failed to ioremap Cdb89712 SRAM space\n");
+ err = -EIO;
+ goto out_resource;
+ }
+-
++ simple_map_init(&cdb89712_sram_map);
+ sram_mtd = do_map_probe("map_ram", &cdb89712_sram_map);
+ if (!sram_mtd) {
+ printk("SRAM probe failed\n");
+@@ -190,7 +128,7 @@
+ goto out_ioremap;
+ }
+
+- sram_mtd->module = THIS_MODULE;
++ sram_mtd->owner = THIS_MODULE;
+ sram_mtd->erasesize = 16;
+
+ if (add_mtd_device(sram_mtd)) {
+@@ -205,7 +143,7 @@
+ map_destroy(sram_mtd);
+ sram_mtd = 0;
+ out_ioremap:
+- iounmap((void *)cdb89712_sram_map.map_priv_1);
++ iounmap((void *)cdb89712_sram_map.virt);
+ out_resource:
+ release_resource (&cdb89712_sram_resource);
+ out:
+@@ -221,20 +159,17 @@
+ static struct mtd_info *bootrom_mtd;
+
+ struct map_info cdb89712_bootrom_map = {
+- name: "BootROM",
+- size: BOOTROM_SIZE,
+- buswidth: BOOTROM_WIDTH,
+- read8: cdb89712_read8,
+- read16: cdb89712_read16,
+- read32: cdb89712_read32,
+- copy_from: cdb89712_copy_from,
++ .name = "BootROM",
++ .size = BOOTROM_SIZE,
++ .buswidth = BOOTROM_WIDTH,
++ .phys = BOOTROM_START,
+ };
+
+ struct resource cdb89712_bootrom_resource = {
+- name: "BootROM",
+- start: BOOTROM_START,
+- end: BOOTROM_START + BOOTROM_SIZE - 1,
+- flags: IORESOURCE_IO | IORESOURCE_BUSY,
++ .name = "BootROM",
++ .start = BOOTROM_START,
++ .end = BOOTROM_START + BOOTROM_SIZE - 1,
++ .flags = IORESOURCE_IO | IORESOURCE_BUSY,
+ };
+
+ static int __init init_cdb89712_bootrom (void)
+@@ -247,13 +182,13 @@
+ goto out;
+ }
+
+- cdb89712_bootrom_map.map_priv_1 = (unsigned long)ioremap(BOOTROM_START, BOOTROM_SIZE);
+- if (!cdb89712_bootrom_map.map_priv_1) {
++ cdb89712_bootrom_map.virt = (unsigned long)ioremap(BOOTROM_START, BOOTROM_SIZE);
++ if (!cdb89712_bootrom_map.virt) {
+ printk(KERN_NOTICE "Failed to ioremap Cdb89712 BootROM space\n");
+ err = -EIO;
+ goto out_resource;
+ }
+-
++ simple_map_init(&cdb89712_bootrom_map);
+ bootrom_mtd = do_map_probe("map_rom", &cdb89712_bootrom_map);
+ if (!bootrom_mtd) {
+ printk("BootROM probe failed\n");
+@@ -261,7 +196,7 @@
+ goto out_ioremap;
+ }
+
+- bootrom_mtd->module = THIS_MODULE;
++ bootrom_mtd->owner = THIS_MODULE;
+ bootrom_mtd->erasesize = 0x10000;
+
+ if (add_mtd_device(bootrom_mtd)) {
+@@ -276,7 +211,7 @@
+ map_destroy(bootrom_mtd);
+ bootrom_mtd = 0;
+ out_ioremap:
+- iounmap((void *)cdb89712_bootrom_map.map_priv_1);
++ iounmap((void *)cdb89712_bootrom_map.virt);
+ out_resource:
+ release_resource (&cdb89712_bootrom_resource);
+ out:
+@@ -306,21 +241,21 @@
+ if (sram_mtd) {
+ del_mtd_device(sram_mtd);
+ map_destroy(sram_mtd);
+- iounmap((void *)cdb89712_sram_map.map_priv_1);
++ iounmap((void *)cdb89712_sram_map.virt);
+ release_resource (&cdb89712_sram_resource);
+ }
+
+ if (flash_mtd) {
+ del_mtd_device(flash_mtd);
+ map_destroy(flash_mtd);
+- iounmap((void *)cdb89712_flash_map.map_priv_1);
++ iounmap((void *)cdb89712_flash_map.virt);
+ release_resource (&cdb89712_flash_resource);
+ }
+
+ if (bootrom_mtd) {
+ del_mtd_device(bootrom_mtd);
+ map_destroy(bootrom_mtd);
+- iounmap((void *)cdb89712_bootrom_map.map_priv_1);
++ iounmap((void *)cdb89712_bootrom_map.virt);
+ release_resource (&cdb89712_bootrom_resource);
+ }
+ }
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/ceiva.c linux/drivers/mtd/maps/ceiva.c
+--- linux-mips-2.4.27/drivers/mtd/maps/ceiva.c 2003-02-26 01:53:49.000000000 +0100
++++ linux/drivers/mtd/maps/ceiva.c 2004-11-19 10:25:11.898199944 +0100
+@@ -11,7 +11,7 @@
+ *
+ * (C) 2000 Nicolas Pitre <nico@cam.org>
+ *
+- * $Id: ceiva.c,v 1.2 2002/10/14 12:50:22 rmk Exp $
++ * $Id: ceiva.c,v 1.8 2003/05/21 12:45:18 dwmw2 Exp $
+ */
+
+ #include <linux/config.h>
+@@ -19,6 +19,7 @@
+ #include <linux/types.h>
+ #include <linux/ioport.h>
+ #include <linux/kernel.h>
++#include <linux/init.h>
+
+ #include <linux/mtd/mtd.h>
+ #include <linux/mtd/map.h>
+@@ -31,62 +32,10 @@
+ #include <asm/sizes.h>
+
+ /*
+- * This isnt complete yet, so...
++ * This isn't complete yet, so...
+ */
+ #define CONFIG_MTD_CEIVA_STATICMAP
+
+-static __u8 clps_read8(struct map_info *map, unsigned long ofs)
+-{
+- return readb(map->map_priv_1 + ofs);
+-}
+-
+-static __u16 clps_read16(struct map_info *map, unsigned long ofs)
+-{
+- return readw(map->map_priv_1 + ofs);
+-}
+-
+-static __u32 clps_read32(struct map_info *map, unsigned long ofs)
+-{
+- return readl(map->map_priv_1 + ofs);
+-}
+-
+-static void clps_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
+-{
+- memcpy(to, (void *)(map->map_priv_1 + from), len);
+-}
+-
+-static void clps_write8(struct map_info *map, __u8 d, unsigned long adr)
+-{
+- writeb(d, map->map_priv_1 + adr);
+-}
+-
+-static void clps_write16(struct map_info *map, __u16 d, unsigned long adr)
+-{
+- writew(d, map->map_priv_1 + adr);
+-}
+-
+-static void clps_write32(struct map_info *map, __u32 d, unsigned long adr)
+-{
+- writel(d, map->map_priv_1 + adr);
+-}
+-
+-static void clps_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
+-{
+- memcpy((void *)(map->map_priv_1 + to), from, len);
+-}
+-
+-static struct map_info clps_map __initdata = {
+- name: "clps flash",
+- read8: clps_read8,
+- read16: clps_read16,
+- read32: clps_read32,
+- copy_from: clps_copy_from,
+- write8: clps_write8,
+- write16: clps_write16,
+- write32: clps_write32,
+- copy_to: clps_copy_to,
+-};
+-
+ #ifdef CONFIG_MTD_CEIVA_STATICMAP
+ /*
+ * See include/linux/mtd/partitions.h for definition of the mtd_partition
+@@ -176,7 +125,7 @@
+ maps = kmalloc(sizeof(struct map_info) * nr, GFP_KERNEL);
+ if (!maps)
+ return -ENOMEM;
+-
++ memset(maps, 0, sizeof(struct map_info) * nr);
+ /*
+ * Claim and then map the memory regions.
+ */
+@@ -191,7 +140,9 @@
+ }
+
+ clps[i].map = maps + i;
+- memcpy(clps[i].map, &clps_map, sizeof(struct map_info));
++
++ clps[i].map->name = "clps flash";
++ clps[i].map->phys = clps[i].base;
+
+ clps[i].vbase = ioremap(clps[i].base, clps[i].size);
+ if (!clps[i].vbase) {
+@@ -199,16 +150,18 @@
+ break;
+ }
+
+- clps[i].map->map_priv_1 = (unsigned long)clps[i].vbase;
++ clps[i].map->virt = (unsigned long)clps[i].vbase;
+ clps[i].map->buswidth = clps[i].width;
+ clps[i].map->size = clps[i].size;
+
++ simple_map_init(&clps[i].map);
++
+ clps[i].mtd = do_map_probe("jedec_probe", clps[i].map);
+ if (clps[i].mtd == NULL) {
+ ret = -ENXIO;
+ break;
+ }
+- clps[i].mtd->module = THIS_MODULE;
++ clps[i].mtd->owner = THIS_MODULE;
+ subdev[i] = clps[i].mtd;
+
+ printk(KERN_INFO "clps flash: JEDEC device at 0x%08lx, %dMiB, "
+@@ -318,10 +271,8 @@
+ return nr;
+ }
+
+-extern int parse_redboot_partitions(struct mtd_info *master, struct mtd_partition **pparts);
+-extern int parse_cmdline_partitions(struct mtd_info *master, struct mtd_partition **pparts, char *);
+-
+ static struct mtd_partition *parsed_parts;
++static const char *probes[] = { "cmdlinepart", "RedBoot", NULL };
+
+ static void __init clps_locate_partitions(struct mtd_info *mtd)
+ {
+@@ -331,20 +282,11 @@
+ /*
+ * Partition selection stuff.
+ */
+-#ifdef CONFIG_MTD_CMDLINE_PARTS
+- nr_parts = parse_cmdline_partitions(mtd, &parsed_parts, "clps");
++ nr_parts = parse_mtd_partitions(mtd, probes, &parsed_parts, 0);
+ if (nr_parts > 0) {
+ part_type = "command line";
+ break;
+ }
+-#endif
+-#ifdef CONFIG_MTD_REDBOOT_PARTS
+- nr_parts = parse_redboot_partitions(mtd, &parsed_parts);
+- if (nr_parts > 0) {
+- part_type = "RedBoot";
+- break;
+- }
+-#endif
+ #ifdef CONFIG_MTD_CEIVA_STATICMAP
+ nr_parts = clps_static_partitions(&parsed_parts);
+ if (nr_parts > 0) {
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/cfi_flagadm.c linux/drivers/mtd/maps/cfi_flagadm.c
+--- linux-mips-2.4.27/drivers/mtd/maps/cfi_flagadm.c 2001-11-05 21:15:52.000000000 +0100
++++ linux/drivers/mtd/maps/cfi_flagadm.c 2004-11-19 10:25:11.900199640 +0100
+@@ -1,7 +1,7 @@
+ /*
+ * Copyright © 2001 Flaga hf. Medical Devices, Kári Davíðsson <kd@flaga.is>
+ *
+- * $Id: cfi_flagadm.c,v 1.7 2001/10/02 15:05:13 dwmw2 Exp $
++ * $Id: cfi_flagadm.c,v 1.11 2003/05/21 12:45:18 dwmw2 Exp $
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+@@ -27,6 +27,7 @@
+ #include <linux/module.h>
+ #include <linux/types.h>
+ #include <linux/kernel.h>
++#include <linux/init.h>
+ #include <asm/io.h>
+ #include <linux/mtd/mtd.h>
+ #include <linux/mtd/map.h>
+@@ -55,83 +56,33 @@
+ #define FLASH_PARTITION3_ADDR 0x00240000
+ #define FLASH_PARTITION3_SIZE 0x001C0000
+
+-__u8 flagadm_read8(struct map_info *map, unsigned long ofs)
+-{
+- return __raw_readb(map->map_priv_1 + ofs);
+-}
+-
+-__u16 flagadm_read16(struct map_info *map, unsigned long ofs)
+-{
+- return __raw_readw(map->map_priv_1 + ofs);
+-}
+-
+-__u32 flagadm_read32(struct map_info *map, unsigned long ofs)
+-{
+- return __raw_readl(map->map_priv_1 + ofs);
+-}
+-
+-void flagadm_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
+-{
+- memcpy_fromio(to, map->map_priv_1 + from, len);
+-}
+-
+-void flagadm_write8(struct map_info *map, __u8 d, unsigned long adr)
+-{
+- __raw_writeb(d, map->map_priv_1 + adr);
+- mb();
+-}
+-
+-void flagadm_write16(struct map_info *map, __u16 d, unsigned long adr)
+-{
+- __raw_writew(d, map->map_priv_1 + adr);
+- mb();
+-}
+-
+-void flagadm_write32(struct map_info *map, __u32 d, unsigned long adr)
+-{
+- __raw_writel(d, map->map_priv_1 + adr);
+- mb();
+-}
+-
+-void flagadm_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
+-{
+- memcpy_toio(map->map_priv_1 + to, from, len);
+-}
+
+ struct map_info flagadm_map = {
+- name: "FlagaDM flash device",
+- size: FLASH_SIZE,
+- buswidth: 2,
+- read8: flagadm_read8,
+- read16: flagadm_read16,
+- read32: flagadm_read32,
+- copy_from: flagadm_copy_from,
+- write8: flagadm_write8,
+- write16: flagadm_write16,
+- write32: flagadm_write32,
+- copy_to: flagadm_copy_to
++ .name = "FlagaDM flash device",
++ .size = FLASH_SIZE,
++ .buswidth = 2,
+ };
+
+ struct mtd_partition flagadm_parts[] = {
+ {
+- name : "Bootloader",
+- offset : FLASH_PARTITION0_ADDR,
+- size : FLASH_PARTITION0_SIZE
++ .name = "Bootloader",
++ .offset = FLASH_PARTITION0_ADDR,
++ .size = FLASH_PARTITION0_SIZE
+ },
+ {
+- name : "Kernel image",
+- offset : FLASH_PARTITION1_ADDR,
+- size : FLASH_PARTITION1_SIZE
++ .name = "Kernel image",
++ .offset = FLASH_PARTITION1_ADDR,
++ .size = FLASH_PARTITION1_SIZE
+ },
+ {
+- name : "Initial ramdisk image",
+- offset : FLASH_PARTITION2_ADDR,
+- size : FLASH_PARTITION2_SIZE
++ .name = "Initial ramdisk image",
++ .offset = FLASH_PARTITION2_ADDR,
++ .size = FLASH_PARTITION2_SIZE
+ },
+ {
+- name : "Persistant storage",
+- offset : FLASH_PARTITION3_ADDR,
+- size : FLASH_PARTITION3_SIZE
++ .name = "Persistant storage",
++ .offset = FLASH_PARTITION3_ADDR,
++ .size = FLASH_PARTITION3_SIZE
+ }
+ };
+
+@@ -144,22 +95,26 @@
+ printk(KERN_NOTICE "FlagaDM flash device: %x at %x\n",
+ FLASH_SIZE, FLASH_PHYS_ADDR);
+
+- flagadm_map.map_priv_1 = (unsigned long)ioremap(FLASH_PHYS_ADDR,
++ flagadm_map.phys = FLASH_PHYS_ADDR;
++ flagadm_map.virt = (unsigned long)ioremap(FLASH_PHYS_ADDR,
+ FLASH_SIZE);
+
+- if (!flagadm_map.map_priv_1) {
++ if (!flagadm_map.virt) {
+ printk("Failed to ioremap\n");
+ return -EIO;
+ }
++
++ simple_map_init(&flagadm_map);
++
+ mymtd = do_map_probe("cfi_probe", &flagadm_map);
+ if (mymtd) {
+- mymtd->module = THIS_MODULE;
++ mymtd->owner = THIS_MODULE;
+ add_mtd_partitions(mymtd, flagadm_parts, PARTITION_COUNT);
+ printk(KERN_NOTICE "FlagaDM flash device initialized\n");
+ return 0;
+ }
+
+- iounmap((void *)flagadm_map.map_priv_1);
++ iounmap((void *)flagadm_map.virt);
+ return -ENXIO;
+ }
+
+@@ -169,9 +124,9 @@
+ del_mtd_partitions(mymtd);
+ map_destroy(mymtd);
+ }
+- if (flagadm_map.map_priv_1) {
+- iounmap((void *)flagadm_map.map_priv_1);
+- flagadm_map.map_priv_1 = 0;
++ if (flagadm_map.virt) {
++ iounmap((void *)flagadm_map.virt);
++ flagadm_map.virt = 0;
+ }
+ }
+
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/cstm_mips_ixx.c linux/drivers/mtd/maps/cstm_mips_ixx.c
+--- linux-mips-2.4.27/drivers/mtd/maps/cstm_mips_ixx.c 2001-11-05 21:15:52.000000000 +0100
++++ linux/drivers/mtd/maps/cstm_mips_ixx.c 2004-11-19 10:25:11.901199488 +0100
+@@ -1,5 +1,5 @@
+ /*
+- * $Id: cstm_mips_ixx.c,v 1.5 2001/10/02 15:05:14 dwmw2 Exp $
++ * $Id: cstm_mips_ixx.c,v 1.9 2003/05/21 12:45:18 dwmw2 Exp $
+ *
+ * Mapping of a custom board with both AMD CFI and JEDEC flash in partitions.
+ * Config with both CFI and JEDEC device support.
+@@ -33,55 +33,13 @@
+ #include <linux/module.h>
+ #include <linux/types.h>
+ #include <linux/kernel.h>
++#include <linux/init.h>
+ #include <asm/io.h>
+ #include <linux/mtd/mtd.h>
+ #include <linux/mtd/map.h>
+ #include <linux/mtd/partitions.h>
+ #include <linux/config.h>
+-
+-#if defined(CONFIG_MIPS_ITE8172) || defined(CONFIG_MIPS_IVR)
+ #include <linux/delay.h>
+-#endif
+-
+-__u8 cstm_mips_ixx_read8(struct map_info *map, unsigned long ofs)
+-{
+- return *(__u8 *)(map->map_priv_1 + ofs);
+-}
+-
+-__u16 cstm_mips_ixx_read16(struct map_info *map, unsigned long ofs)
+-{
+- return *(__u16 *)(map->map_priv_1 + ofs);
+-}
+-
+-__u32 cstm_mips_ixx_read32(struct map_info *map, unsigned long ofs)
+-{
+- return *(__u32 *)(map->map_priv_1 + ofs);
+-}
+-
+-void cstm_mips_ixx_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
+-{
+- memcpy_fromio(to, map->map_priv_1 + from, len);
+-}
+-
+-void cstm_mips_ixx_write8(struct map_info *map, __u8 d, unsigned long adr)
+-{
+- *(__u8 *)(map->map_priv_1 + adr) = d;
+-}
+-
+-void cstm_mips_ixx_write16(struct map_info *map, __u16 d, unsigned long adr)
+-{
+- *(__u16 *)(map->map_priv_1 + adr) = d;
+-}
+-
+-void cstm_mips_ixx_write32(struct map_info *map, __u32 d, unsigned long adr)
+-{
+- *(__u32 *)(map->map_priv_1 + adr) = d;
+-}
+-
+-void cstm_mips_ixx_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
+-{
+- memcpy_toio(map->map_priv_1 + to, from, len);
+-}
+
+ #if defined(CONFIG_MIPS_ITE8172) || defined(CONFIG_MIPS_IVR)
+ #define CC_GCR 0xB4013818
+@@ -97,10 +55,17 @@
+ #define CC_GPAICR 0xB4013804
+ #endif /* defined(CONFIG_MIPS_ITE8172) || defined(CONFIG_MIPS_IVR) */
+
++#if defined(CONFIG_MIPS_ITE8172) || defined(CONFIG_MIPS_IVR)
+ void cstm_mips_ixx_set_vpp(struct map_info *map,int vpp)
+ {
++ static spinlock_t vpp_lock = SPIN_LOCK_UNLOCKED;
++ static int vpp_count = 0;
++ unsigned long flags;
++
++ spin_lock_irqsave(&vpp_lock, flags);
++
+ if (vpp) {
+-#if defined(CONFIG_MIPS_ITE8172) || defined(CONFIG_MIPS_IVR)
++ if (!vpp_count++) {
+ __u16 data;
+ __u8 data1;
+ static u8 first = 1;
+@@ -116,10 +81,9 @@
+ enabling vpp after powerup */
+ udelay(40);
+ }
+-#endif /* CONFIG_MIPS_ITE8172 */
+ }
+- else {
+-#if defined(CONFIG_MIPS_ITE8172) || defined(CONFIG_MIPS_IVR)
++ } else {
++ if (!--vpp_count) {
+ __u16 data;
+
+ // Set GPIO port B pin3 to high
+@@ -127,26 +91,11 @@
+ data = (data & 0xff3f) | 0x0040;
+ *(__u16 *)CC_GPBCR = data;
+ *(__u8 *)CC_GPBDR = (*(__u8*)CC_GPBDR) & 0xf7;
+-#endif /* CONFIG_MIPS_ITE8172 */
+ }
++ }
++ spin_unlock_irqrestore(&vpp_lock, flags);
+ }
+-
+-const struct map_info basic_cstm_mips_ixx_map = {
+- NULL,
+- 0,
+- 0,
+- cstm_mips_ixx_read8,
+- cstm_mips_ixx_read16,
+- cstm_mips_ixx_read32,
+- cstm_mips_ixx_copy_from,
+- cstm_mips_ixx_write8,
+- cstm_mips_ixx_write16,
+- cstm_mips_ixx_write32,
+- cstm_mips_ixx_copy_to,
+- cstm_mips_ixx_set_vpp,
+- 0,
+- 0
+-};
++#endif
+
+ /* board and partition description */
+
+@@ -175,9 +124,9 @@
+ static struct mtd_partition cstm_mips_ixx_partitions[PHYSMAP_NUMBER][MAX_PHYSMAP_PARTITIONS] = {
+ { // 28F128J3A in 2x16 configuration
+ {
+- name: "main partition ",
+- size: 0x02000000, // 128 x 2 x 128k byte sectors
+- offset: 0,
++ .name = "main partition ",
++ .size = 0x02000000, // 128 x 2 x 128k byte sectors
++ .offset = 0,
+ },
+ },
+ };
+@@ -197,9 +146,9 @@
+ static struct mtd_partition cstm_mips_ixx_partitions[PHYSMAP_NUMBER][MAX_PHYSMAP_PARTITIONS] = {
+ {
+ {
+- name: "main partition",
+- size: CONFIG_MTD_CSTM_MIPS_IXX_LEN,
+- offset: 0,
++ .name = "main partition",
++ .size = CONFIG_MTD_CSTM_MIPS_IXX_LEN,
++ .offset = 0,
+ },
+ },
+ };
+@@ -216,17 +165,24 @@
+
+ /* Initialize mapping */
+ for (i=0;i<PHYSMAP_NUMBER;i++) {
+- printk(KERN_NOTICE "cstm_mips_ixx flash device: %lx at %lx\n", cstm_mips_ixx_board_desc[i].window_size, cstm_mips_ixx_board_desc[i].window_addr);
+- memcpy((char *)&cstm_mips_ixx_map[i],(char *)&basic_cstm_mips_ixx_map,sizeof(struct map_info));
+- cstm_mips_ixx_map[i].map_priv_1 = (unsigned long)ioremap(cstm_mips_ixx_board_desc[i].window_addr, cstm_mips_ixx_board_desc[i].window_size);
+- if (!cstm_mips_ixx_map[i].map_priv_1) {
++ printk(KERN_NOTICE "cstm_mips_ixx flash device: 0x%lx at 0x%lx\n",
++ cstm_mips_ixx_board_desc[i].window_size, cstm_mips_ixx_board_desc[i].window_addr);
++
++
++ cstm_mips_ixx_map[i].phys = cstm_mips_ixx_board_desc[i].window_addr;
++ cstm_mips_ixx_map[i].virt = (unsigned long)ioremap(cstm_mips_ixx_board_desc[i].window_addr, cstm_mips_ixx_board_desc[i].window_size);
++ if (!cstm_mips_ixx_map[i].virt) {
+ printk(KERN_WARNING "Failed to ioremap\n");
+ return -EIO;
+ }
+ cstm_mips_ixx_map[i].name = cstm_mips_ixx_board_desc[i].name;
+ cstm_mips_ixx_map[i].size = cstm_mips_ixx_board_desc[i].window_size;
+ cstm_mips_ixx_map[i].buswidth = cstm_mips_ixx_board_desc[i].buswidth;
+- //printk(KERN_NOTICE "cstm_mips_ixx: ioremap is %x\n",(unsigned int)(cstm_mips_ixx_map[i].map_priv_1));
++#if defined(CONFIG_MIPS_ITE8172) || defined(CONFIG_MIPS_IVR)
++ cstm_mips_ixx_map[i].set_vpp = cstm_mips_ixx_set_vpp;
++#endif
++ simple_map_init(&cstm_mips_ixx_map[i]);
++ //printk(KERN_NOTICE "cstm_mips_ixx: ioremap is %x\n",(unsigned int)(cstm_mips_ixx_map[i].virt));
+ }
+
+ #if defined(CONFIG_MIPS_ITE8172) || defined(CONFIG_MIPS_IVR)
+@@ -244,7 +200,7 @@
+ printk(KERN_NOTICE "cstm_mips_ixx %d jedec: mymtd is %x\n",i,(unsigned int)mymtd);
+ }
+ if (mymtd) {
+- mymtd->module = THIS_MODULE;
++ mymtd->owner = THIS_MODULE;
+
+ cstm_mips_ixx_map[i].map_priv_2 = (unsigned long)mymtd;
+ add_mtd_partitions(mymtd, parts, cstm_mips_ixx_board_desc[i].num_partitions);
+@@ -266,9 +222,9 @@
+ del_mtd_partitions(mymtd);
+ map_destroy(mymtd);
+ }
+- if (cstm_mips_ixx_map[i].map_priv_1) {
+- iounmap((void *)cstm_mips_ixx_map[i].map_priv_1);
+- cstm_mips_ixx_map[i].map_priv_1 = 0;
++ if (cstm_mips_ixx_map[i].virt) {
++ iounmap((void *)cstm_mips_ixx_map[i].virt);
++ cstm_mips_ixx_map[i].virt = 0;
+ }
+ }
+ }
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/db1x00-flash.c linux/drivers/mtd/maps/db1x00-flash.c
+--- linux-mips-2.4.27/drivers/mtd/maps/db1x00-flash.c 2003-02-16 07:25:24.000000000 +0100
++++ linux/drivers/mtd/maps/db1x00-flash.c 2004-11-19 10:25:11.903199184 +0100
+@@ -8,6 +8,7 @@
+ #include <linux/config.h>
+ #include <linux/module.h>
+ #include <linux/types.h>
++#include <linux/init.h>
+ #include <linux/kernel.h>
+
+ #include <linux/mtd/mtd.h>
+@@ -29,76 +30,6 @@
+ static unsigned long flash_size;
+
+ static BCSR * const bcsr = (BCSR *)0xAE000000;
+-
+-__u8 physmap_read8(struct map_info *map, unsigned long ofs)
+-{
+- __u8 ret;
+- ret = __raw_readb(map->map_priv_1 + ofs);
+- DBG("read8 from %x, %x\n", (unsigned)(map->map_priv_1 + ofs), ret);
+- return ret;
+-}
+-
+-__u16 physmap_read16(struct map_info *map, unsigned long ofs)
+-{
+- __u16 ret;
+- ret = __raw_readw(map->map_priv_1 + ofs);
+- DBG("read16 from %x, %x\n", (unsigned)(map->map_priv_1 + ofs), ret);
+- return ret;
+-}
+-
+-__u32 physmap_read32(struct map_info *map, unsigned long ofs)
+-{
+- __u32 ret;
+- ret = __raw_readl(map->map_priv_1 + ofs);
+- DBG("read32 from %x, %x\n", (unsigned)(map->map_priv_1 + ofs), ret);
+- return ret;
+-}
+-
+-void physmap_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
+-{
+- DBG("physmap_copy from %x to %x\n", (unsigned)from, (unsigned)to);
+- memcpy_fromio(to, map->map_priv_1 + from, len);
+-}
+-
+-void physmap_write8(struct map_info *map, __u8 d, unsigned long adr)
+-{
+- DBG("write8 at %x, %x\n", (unsigned)(map->map_priv_1 + adr), d);
+- __raw_writeb(d, map->map_priv_1 + adr);
+- mb();
+-}
+-
+-void physmap_write16(struct map_info *map, __u16 d, unsigned long adr)
+-{
+- DBG("write16 at %x, %x\n", (unsigned)(map->map_priv_1 + adr), d);
+- __raw_writew(d, map->map_priv_1 + adr);
+- mb();
+-}
+-
+-void physmap_write32(struct map_info *map, __u32 d, unsigned long adr)
+-{
+- DBG("write32 at %x, %x\n", (unsigned)(map->map_priv_1 + adr), d);
+- __raw_writel(d, map->map_priv_1 + adr);
+- mb();
+-}
+-
+-void physmap_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
+-{
+- DBG("physmap_copy_to %x from %x\n", (unsigned)to, (unsigned)from);
+- memcpy_toio(map->map_priv_1 + to, from, len);
+-}
+-
+-static struct map_info db1x00_map = {
+- name: "Db1x00 flash",
+- read8: physmap_read8,
+- read16: physmap_read16,
+- read32: physmap_read32,
+- copy_from: physmap_copy_from,
+- write8: physmap_write8,
+- write16: physmap_write16,
+- write32: physmap_write32,
+- copy_to: physmap_copy_to,
+-};
+-
+ static unsigned char flash_buswidth = 4;
+
+ /*
+@@ -115,58 +46,62 @@
+ */
+ static struct mtd_partition db1x00_partitions[] = {
+ {
+- name: "User FS",
+- size: 0x1c00000,
+- offset: 0x0000000
++ .name = "User FS",
++ .size = 0x1c00000,
++ .offset = 0x0000000
+ },{
+- name: "yamon",
+- size: 0x0100000,
+- offset: MTDPART_OFS_APPEND,
+- mask_flags: MTD_WRITEABLE
++ .name = "yamon",
++ .size = 0x0100000,
++ .offset = MTDPART_OFS_APPEND,
++ .mask_flags = MTD_WRITEABLE
+ },{
+- name: "raw kernel",
+- size: (0x300000-0x40000), /* last 256KB is yamon env */
+- offset: MTDPART_OFS_APPEND,
++ .name = "raw kernel",
++ .size = (0x300000-0x40000), /* last 256KB is env */
++ .offset = MTDPART_OFS_APPEND,
+ }
+ };
+ #elif defined(DB1X00_BOOT_ONLY)
+ static struct mtd_partition db1x00_partitions[] = {
+ {
+- name: "User FS",
+- size: 0x00c00000,
+- offset: 0x0000000
++ .name = "User FS",
++ .size = 0x00c00000,
++ .offset = 0x0000000
+ },{
+- name: "yamon",
+- size: 0x0100000,
+- offset: MTDPART_OFS_APPEND,
+- mask_flags: MTD_WRITEABLE
++ .name = "yamon",
++ .size = 0x0100000,
++ .offset = MTDPART_OFS_APPEND,
++ .mask_flags = MTD_WRITEABLE
+ },{
+- name: "raw kernel",
+- size: (0x300000-0x40000), /* last 256KB is yamon env */
+- offset: MTDPART_OFS_APPEND,
++ .name = "raw kernel",
++ .size = (0x300000-0x40000), /* last 256KB is env */
++ .offset = MTDPART_OFS_APPEND,
+ }
+ };
+ #elif defined(DB1X00_USER_ONLY)
+ static struct mtd_partition db1x00_partitions[] = {
+ {
+- name: "User FS",
+- size: 0x0e00000,
+- offset: 0x0000000
++ .name = "User FS",
++ .size = 0x0e00000,
++ .offset = 0x0000000
+ },{
+- name: "raw kernel",
+- size: MTDPART_SIZ_FULL,
+- offset: MTDPART_OFS_APPEND,
++ .name = "raw kernel",
++ .size = MTDPART_SIZ_FULL,
++ .offset = MTDPART_OFS_APPEND,
+ }
+ };
+ #else
+ #error MTD_DB1X00 define combo error /* should never happen */
+ #endif
++#define NB_OF(x) (sizeof(x)/sizeof(x[0]))
+
++#define NAME "Db1x00 Linux Flash"
+
+-#define NB_OF(x) (sizeof(x)/sizeof(x[0]))
++static struct map_info db1xxx_mtd_map = {
++ .name = NAME,
++};
+
+ static struct mtd_partition *parsed_parts;
+-static struct mtd_info *mymtd;
++static struct mtd_info *db1xxx_mtd;
+
+ /*
+ * Probe the flash density and setup window address and size
+@@ -174,7 +109,7 @@
+ * want the MTD driver to be probing the boot or user flash,
+ * so having the option to enable only one bank is important.
+ */
+-int setup_flash_params()
++int setup_flash_params(void)
+ {
+ switch ((bcsr->status >> 14) & 0x3) {
+ case 0: /* 64Mbit devices */
+@@ -228,6 +163,10 @@
+ default:
+ return 1;
+ }
++ db1xxx_mtd_map.size = window_size;
++ db1xxx_mtd_map.buswidth = flash_buswidth;
++ db1xxx_mtd_map.phys = window_addr;
++ db1xxx_mtd_map.buswidth = flash_buswidth;
+ return 0;
+ }
+
+@@ -235,10 +174,6 @@
+ {
+ struct mtd_partition *parts;
+ int nb_parts = 0;
+- char *part_type;
+-
+- /* Default flash buswidth */
+- db1x00_map.buswidth = flash_buswidth;
+
+ if (setup_flash_params())
+ return -ENXIO;
+@@ -246,32 +181,29 @@
+ /*
+ * Static partition definition selection
+ */
+- part_type = "static";
+ parts = db1x00_partitions;
+ nb_parts = NB_OF(db1x00_partitions);
+- db1x00_map.size = window_size;
+
+ /*
+ * Now let's probe for the actual flash. Do it here since
+ * specific machine settings might have been set above.
+ */
+ printk(KERN_NOTICE "Db1xxx flash: probing %d-bit flash bus\n",
+- db1x00_map.buswidth*8);
+- db1x00_map.map_priv_1 =
+- (unsigned long)ioremap(window_addr, window_size);
+- mymtd = do_map_probe("cfi_probe", &db1x00_map);
+- if (!mymtd) return -ENXIO;
+- mymtd->module = THIS_MODULE;
++ db1xxx_mtd_map.buswidth*8);
++ db1xxx_mtd_map.virt = (unsigned long)ioremap(window_addr, window_size);
++ db1xxx_mtd = do_map_probe("cfi_probe", &db1xxx_mtd_map);
++ if (!db1xxx_mtd) return -ENXIO;
++ db1xxx_mtd->owner = THIS_MODULE;
+
+- add_mtd_partitions(mymtd, parts, nb_parts);
++ add_mtd_partitions(db1xxx_mtd, parts, nb_parts);
+ return 0;
+ }
+
+ static void __exit db1x00_mtd_cleanup(void)
+ {
+- if (mymtd) {
+- del_mtd_partitions(mymtd);
+- map_destroy(mymtd);
++ if (db1xxx_mtd) {
++ del_mtd_partitions(db1xxx_mtd);
++ map_destroy(db1xxx_mtd);
+ if (parsed_parts)
+ kfree(parsed_parts);
+ }
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/dbox2-flash.c linux/drivers/mtd/maps/dbox2-flash.c
+--- linux-mips-2.4.27/drivers/mtd/maps/dbox2-flash.c 2001-11-05 21:15:52.000000000 +0100
++++ linux/drivers/mtd/maps/dbox2-flash.c 2004-11-19 10:25:11.904199032 +0100
+@@ -1,12 +1,13 @@
+ /*
+- * $Id: dbox2-flash.c,v 1.4 2001/10/02 15:05:14 dwmw2 Exp $
++ * $Id: dbox2-flash.c,v 1.9 2003/05/21 12:45:18 dwmw2 Exp $
+ *
+- * Nokia / Sagem D-Box 2 flash driver
++ * D-Box 2 flash driver
+ */
+
+ #include <linux/module.h>
+ #include <linux/types.h>
+ #include <linux/kernel.h>
++#include <linux/init.h>
+ #include <asm/io.h>
+ #include <linux/mtd/mtd.h>
+ #include <linux/mtd/map.h>
+@@ -16,22 +17,44 @@
+ /* partition_info gives details on the logical partitions that the split the
+ * single flash device into. If the size if zero we use up to the end of the
+ * device. */
+-static struct mtd_partition partition_info[]= {{name: "BR bootloader", // raw
+- size: 128 * 1024,
+- offset: 0,
+- mask_flags: MTD_WRITEABLE},
+- {name: "PPC bootloader", // flfs
+- size: 128 * 1024,
+- offset: MTDPART_OFS_APPEND,
+- mask_flags: 0},
+- {name: "Kernel", // idxfs
+- size: 768 * 1024,
+- offset: MTDPART_OFS_APPEND,
+- mask_flags: 0},
+- {name: "System", // jffs
+- size: MTDPART_SIZ_FULL,
+- offset: MTDPART_OFS_APPEND,
+- mask_flags: 0}};
++static struct mtd_partition partition_info[]= {
++ {
++ .name = "BR bootloader",
++ .size = 128 * 1024,
++ .offset = 0,
++ .mask_flags = MTD_WRITEABLE
++ },
++ {
++ .name = "flfs (ppcboot)",
++ .size = 128 * 1024,
++ .offset = MTDPART_OFS_APPEND,
++ .mask_flags = 0
++ },
++ {
++ .name = "root (cramfs)",
++ .size = 7040 * 1024,
++ .offset = MTDPART_OFS_APPEND,
++ .mask_flags = 0
++ },
++ {
++ .name = "var (jffs2)",
++ .size = 896 * 1024,
++ .offset = MTDPART_OFS_APPEND,
++ .mask_flags = 0
++ },
++ {
++ .name = "flash without bootloader",
++ .size = MTDPART_SIZ_FULL,
++ .offset = 128 * 1024,
++ .mask_flags = 0
++ },
++ {
++ .name = "complete flash",
++ .size = MTDPART_SIZ_FULL,
++ .offset = 0,
++ .mask_flags = MTD_WRITEABLE
++ }
++};
+
+ #define NUM_PARTITIONS (sizeof(partition_info) / sizeof(partition_info[0]))
+
+@@ -40,72 +63,24 @@
+
+ static struct mtd_info *mymtd;
+
+-__u8 dbox2_flash_read8(struct map_info *map, unsigned long ofs)
+-{
+- return __raw_readb(map->map_priv_1 + ofs);
+-}
+-
+-__u16 dbox2_flash_read16(struct map_info *map, unsigned long ofs)
+-{
+- return __raw_readw(map->map_priv_1 + ofs);
+-}
+-
+-__u32 dbox2_flash_read32(struct map_info *map, unsigned long ofs)
+-{
+- return __raw_readl(map->map_priv_1 + ofs);
+-}
+-
+-void dbox2_flash_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
+-{
+- memcpy_fromio(to, map->map_priv_1 + from, len);
+-}
+-
+-void dbox2_flash_write8(struct map_info *map, __u8 d, unsigned long adr)
+-{
+- __raw_writeb(d, map->map_priv_1 + adr);
+- mb();
+-}
+-
+-void dbox2_flash_write16(struct map_info *map, __u16 d, unsigned long adr)
+-{
+- __raw_writew(d, map->map_priv_1 + adr);
+- mb();
+-}
+-
+-void dbox2_flash_write32(struct map_info *map, __u32 d, unsigned long adr)
+-{
+- __raw_writel(d, map->map_priv_1 + adr);
+- mb();
+-}
+-
+-void dbox2_flash_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
+-{
+- memcpy_toio(map->map_priv_1 + to, from, len);
+-}
+
+ struct map_info dbox2_flash_map = {
+- name: "D-Box 2 flash memory",
+- size: WINDOW_SIZE,
+- buswidth: 4,
+- read8: dbox2_flash_read8,
+- read16: dbox2_flash_read16,
+- read32: dbox2_flash_read32,
+- copy_from: dbox2_flash_copy_from,
+- write8: dbox2_flash_write8,
+- write16: dbox2_flash_write16,
+- write32: dbox2_flash_write32,
+- copy_to: dbox2_flash_copy_to
++ .name = "D-Box 2 flash memory",
++ .size = WINDOW_SIZE,
++ .buswidth = 4,
++ .phys = WINDOW_ADDR,
+ };
+
+ int __init init_dbox2_flash(void)
+ {
+ printk(KERN_NOTICE "D-Box 2 flash driver (size->0x%X mem->0x%X)\n", WINDOW_SIZE, WINDOW_ADDR);
+- dbox2_flash_map.map_priv_1 = (unsigned long)ioremap(WINDOW_ADDR, WINDOW_SIZE);
++ dbox2_flash_map.virt = (unsigned long)ioremap(WINDOW_ADDR, WINDOW_SIZE);
+
+- if (!dbox2_flash_map.map_priv_1) {
++ if (!dbox2_flash_map.virt) {
+ printk("Failed to ioremap\n");
+ return -EIO;
+ }
++ simple_map_init(&dbox2_flash_map);
+
+ // Probe for dual Intel 28F320 or dual AMD
+ mymtd = do_map_probe("cfi_probe", &dbox2_flash_map);
+@@ -117,7 +92,7 @@
+ }
+
+ if (mymtd) {
+- mymtd->module = THIS_MODULE;
++ mymtd->owner = THIS_MODULE;
+
+ /* Create MTD devices for each partition. */
+ add_mtd_partitions(mymtd, partition_info, NUM_PARTITIONS);
+@@ -125,7 +100,7 @@
+ return 0;
+ }
+
+- iounmap((void *)dbox2_flash_map.map_priv_1);
++ iounmap((void *)dbox2_flash_map.virt);
+ return -ENXIO;
+ }
+
+@@ -135,9 +110,9 @@
+ del_mtd_partitions(mymtd);
+ map_destroy(mymtd);
+ }
+- if (dbox2_flash_map.map_priv_1) {
+- iounmap((void *)dbox2_flash_map.map_priv_1);
+- dbox2_flash_map.map_priv_1 = 0;
++ if (dbox2_flash_map.virt) {
++ iounmap((void *)dbox2_flash_map.virt);
++ dbox2_flash_map.virt = 0;
+ }
+ }
+
+@@ -146,5 +121,5 @@
+
+
+ MODULE_LICENSE("GPL");
+-MODULE_AUTHOR("Kári Davíðsson <kd@flaga.is>");
+-MODULE_DESCRIPTION("MTD map driver for Nokia/Sagem D-Box 2 board");
++MODULE_AUTHOR("Kári Davíðsson <kd@flaga.is>, Bastian Blank <waldi@tuxbox.org>, Alexander Wild <wild@te-elektronik.com>");
++MODULE_DESCRIPTION("MTD map driver for D-Box 2 board");
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/dc21285.c linux/drivers/mtd/maps/dc21285.c
+--- linux-mips-2.4.27/drivers/mtd/maps/dc21285.c 2003-02-26 01:53:49.000000000 +0100
++++ linux/drivers/mtd/maps/dc21285.c 2004-11-19 10:25:11.906198728 +0100
+@@ -5,12 +5,13 @@
+ *
+ * This code is GPL
+ *
+- * $Id: dc21285.c,v 1.9 2002/10/14 12:22:10 rmk Exp $
++ * $Id: dc21285.c,v 1.15 2003/05/21 12:45:18 dwmw2 Exp $
+ */
+ #include <linux/config.h>
+ #include <linux/module.h>
+ #include <linux/types.h>
+ #include <linux/kernel.h>
++#include <linux/init.h>
+
+ #include <linux/mtd/mtd.h>
+ #include <linux/mtd/map.h>
+@@ -92,26 +93,42 @@
+ }
+
+ struct map_info dc21285_map = {
+- name: "DC21285 flash",
+- size: 16*1024*1024,
+- read8: dc21285_read8,
+- read16: dc21285_read16,
+- read32: dc21285_read32,
+- copy_from: dc21285_copy_from,
+- write8: dc21285_write8,
+- write16: dc21285_write16,
+- write32: dc21285_write32,
+- copy_to: dc21285_copy_to
++ .name = "DC21285 flash",
++ .phys = NO_XIP,
++ .size = 16*1024*1024,
++ .read8 = dc21285_read8,
++ .read16 = dc21285_read16,
++ .read32 = dc21285_read32,
++ .copy_from = dc21285_copy_from,
++ .write8 = dc21285_write8,
++ .write16 = dc21285_write16,
++ .write32 = dc21285_write32,
++ .copy_to = dc21285_copy_to
+ };
+
+
+ /* Partition stuff */
+ static struct mtd_partition *dc21285_parts;
+-
+-extern int parse_redboot_partitions(struct mtd_info *, struct mtd_partition **);
++#ifdef CONFIG_MTD_PARTITIONS
++static const char *probes[] = { "RedBoot", "cmdlinepart", NULL };
++#endif
+
+ int __init init_dc21285(void)
+ {
++
++ /*
++ * Flash timing is determined with bits 19-16 of the
++ * CSR_SA110_CNTL. The value is the number of wait cycles, or
++ * 0 for 16 cycles (the default). Cycles are 20 ns.
++ * Here we use 7 for 140 ns flash chips.
++ */
++ /* access time */
++ *CSR_SA110_CNTL = ((*CSR_SA110_CNTL & ~0x000f0000) | (7 << 16));
++ /* burst time */
++ *CSR_SA110_CNTL = ((*CSR_SA110_CNTL & ~0x00f00000) | (7 << 20));
++ /* tristate time */
++ *CSR_SA110_CNTL = ((*CSR_SA110_CNTL & ~0x0f000000) | (7 << 24));
++
+ /* Determine buswidth */
+ switch (*CSR_SA110_CNTL & (3<<14)) {
+ case SA110_CNTL_ROMWIDTH_8:
+@@ -141,33 +158,18 @@
+ if (mymtd) {
+ int nrparts = 0;
+
+- mymtd->module = THIS_MODULE;
++ mymtd->owner = THIS_MODULE;
+
+ /* partition fixup */
+
+-#ifdef CONFIG_MTD_REDBOOT_PARTS
+- nrparts = parse_redboot_partitions(mymtd, &dc21285_parts);
+-#endif
++#ifdef CONFIG_MTD_PARTITIONS
++ nrparts = parse_mtd_partitions(mymtd, probes, &dc21285_parts, (void *)0);
+ if (nrparts > 0) {
+ add_mtd_partitions(mymtd, dc21285_parts, nrparts);
+- } else if (nrparts == 0) {
+- printk(KERN_NOTICE "RedBoot partition table failed\n");
+- add_mtd_device(mymtd);
++ return 0;
+ }
+-
+- /*
+- * Flash timing is determined with bits 19-16 of the
+- * CSR_SA110_CNTL. The value is the number of wait cycles, or
+- * 0 for 16 cycles (the default). Cycles are 20 ns.
+- * Here we use 7 for 140 ns flash chips.
+- */
+- /* access time */
+- *CSR_SA110_CNTL = ((*CSR_SA110_CNTL & ~0x000f0000) | (7 << 16));
+- /* burst time */
+- *CSR_SA110_CNTL = ((*CSR_SA110_CNTL & ~0x00f00000) | (7 << 20));
+- /* tristate time */
+- *CSR_SA110_CNTL = ((*CSR_SA110_CNTL & ~0x0f000000) | (7 << 24));
+-
++#endif
++ add_mtd_device(mymtd);
+ return 0;
+ }
+
+@@ -177,17 +179,16 @@
+
+ static void __exit cleanup_dc21285(void)
+ {
+- if (mymtd) {
++#ifdef CONFIG_MTD_PARTITIONS
++ if (dc21285_parts) {
++ del_mtd_partitions(mymtd);
++ kfree(dc21285_parts);
++ } else
++#endif
+ del_mtd_device(mymtd);
++
+ map_destroy(mymtd);
+- mymtd = NULL;
+- }
+- if (dc21285_map.map_priv_1) {
+ iounmap((void *)dc21285_map.map_priv_1);
+- dc21285_map.map_priv_1 = 0;
+- }
+- if(dc21285_parts)
+- kfree(dc21285_parts);
+ }
+
+ module_init(init_dc21285);
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/dilnetpc.c linux/drivers/mtd/maps/dilnetpc.c
+--- linux-mips-2.4.27/drivers/mtd/maps/dilnetpc.c 2002-06-27 00:35:50.000000000 +0200
++++ linux/drivers/mtd/maps/dilnetpc.c 2004-11-19 10:25:11.907198576 +0100
+@@ -14,7 +14,7 @@
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ *
+- * $Id: dilnetpc.c,v 1.8 2002/03/12 13:07:26 rkaiser Exp $
++ * $Id: dilnetpc.c,v 1.12 2003/05/21 12:45:18 dwmw2 Exp $
+ *
+ * The DIL/Net PC is a tiny embedded PC board made by SSV Embedded Systems
+ * featuring the AMD Elan SC410 processor. There are two variants of this
+@@ -29,6 +29,7 @@
+ #include <linux/module.h>
+ #include <linux/types.h>
+ #include <linux/kernel.h>
++#include <linux/init.h>
+ #include <asm/io.h>
+ #include <linux/mtd/mtd.h>
+ #include <linux/mtd/map.h>
+@@ -36,7 +37,7 @@
+ #include <linux/mtd/concat.h>
+
+ /*
+-** The DIL/NetPC keeps it's BIOS in two distinct flash blocks.
++** The DIL/NetPC keeps its BIOS in two distinct flash blocks.
+ ** Destroying any of these blocks transforms the DNPC into
+ ** a paperweight (albeit not a very useful one, considering
+ ** it only weighs a few grams).
+@@ -189,45 +190,6 @@
+ }
+
+
+-static __u8 dnpc_read8(struct map_info *map, unsigned long ofs)
+-{
+- return readb(map->map_priv_1 + ofs);
+-}
+-
+-static __u16 dnpc_read16(struct map_info *map, unsigned long ofs)
+-{
+- return readw(map->map_priv_1 + ofs);
+-}
+-
+-static __u32 dnpc_read32(struct map_info *map, unsigned long ofs)
+-{
+- return readl(map->map_priv_1 + ofs);
+-}
+-
+-static void dnpc_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
+-{
+- memcpy_fromio(to, (void *)(map->map_priv_1 + from), len);
+-}
+-
+-static void dnpc_write8(struct map_info *map, __u8 d, unsigned long adr)
+-{
+- writeb(d, map->map_priv_1 + adr);
+-}
+-
+-static void dnpc_write16(struct map_info *map, __u16 d, unsigned long adr)
+-{
+- writew(d, map->map_priv_1 + adr);
+-}
+-
+-static void dnpc_write32(struct map_info *map, __u32 d, unsigned long adr)
+-{
+- writel(d, map->map_priv_1 + adr);
+-}
+-
+-static void dnpc_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
+-{
+- memcpy_toio((void *)(map->map_priv_1 + to), from, len);
+-}
+
+ /*
+ ************************************************************
+@@ -288,19 +250,11 @@
+ #define WINDOW_ADDR FLASH_BASE
+
+ static struct map_info dnpc_map = {
+- name: "ADNP Flash Bank",
+- size: ADNP_WINDOW_SIZE,
+- buswidth: 1,
+- read8: dnpc_read8,
+- read16: dnpc_read16,
+- read32: dnpc_read32,
+- copy_from: dnpc_copy_from,
+- write8: dnpc_write8,
+- write16: dnpc_write16,
+- write32: dnpc_write32,
+- copy_to: dnpc_copy_to,
+- set_vpp: adnp_set_vpp,
+- map_priv_2: WINDOW_ADDR
++ .name = "ADNP Flash Bank",
++ .size = ADNP_WINDOW_SIZE,
++ .buswidth = 1,
++ .set_vpp = adnp_set_vpp,
++ .phys = WINDOW_ADDR
+ };
+
+ /*
+@@ -316,29 +270,29 @@
+ static struct mtd_partition partition_info[]=
+ {
+ {
+- name: "ADNP boot",
+- offset: 0,
+- size: 0xf0000,
++ .name = "ADNP boot",
++ .offset = 0,
++ .size = 0xf0000,
+ },
+ {
+- name: "ADNP system BIOS",
+- offset: MTDPART_OFS_NXTBLK,
+- size: 0x10000,
++ .name = "ADNP system BIOS",
++ .offset = MTDPART_OFS_NXTBLK,
++ .size = 0x10000,
+ #ifdef DNPC_BIOS_BLOCKS_WRITEPROTECTED
+- mask_flags: MTD_WRITEABLE,
++ .mask_flags = MTD_WRITEABLE,
+ #endif
+ },
+ {
+- name: "ADNP file system",
+- offset: MTDPART_OFS_NXTBLK,
+- size: 0x2f0000,
++ .name = "ADNP file system",
++ .offset = MTDPART_OFS_NXTBLK,
++ .size = 0x2f0000,
+ },
+ {
+- name: "ADNP system BIOS entry",
+- offset: MTDPART_OFS_NXTBLK,
+- size: MTDPART_SIZ_FULL,
++ .name = "ADNP system BIOS entry",
++ .offset = MTDPART_OFS_NXTBLK,
++ .size = MTDPART_SIZ_FULL,
+ #ifdef DNPC_BIOS_BLOCKS_WRITEPROTECTED
+- mask_flags: MTD_WRITEABLE,
++ .mask_flags = MTD_WRITEABLE,
+ #endif
+ },
+ };
+@@ -369,21 +323,21 @@
+ static struct mtd_partition higlvl_partition_info[]=
+ {
+ {
+- name: "ADNP boot block",
+- offset: 0,
+- size: CONFIG_MTD_DILNETPC_BOOTSIZE,
++ .name = "ADNP boot block",
++ .offset = 0,
++ .size = CONFIG_MTD_DILNETPC_BOOTSIZE,
+ },
+ {
+- name: "ADNP file system space",
+- offset: MTDPART_OFS_NXTBLK,
+- size: ADNP_WINDOW_SIZE-CONFIG_MTD_DILNETPC_BOOTSIZE-0x20000,
++ .name = "ADNP file system space",
++ .offset = MTDPART_OFS_NXTBLK,
++ .size = ADNP_WINDOW_SIZE-CONFIG_MTD_DILNETPC_BOOTSIZE-0x20000,
+ },
+ {
+- name: "ADNP system BIOS + BIOS Entry",
+- offset: MTDPART_OFS_NXTBLK,
+- size: MTDPART_SIZ_FULL,
++ .name = "ADNP system BIOS + BIOS Entry",
++ .offset = MTDPART_OFS_NXTBLK,
++ .size = MTDPART_SIZ_FULL,
+ #ifdef DNPC_BIOS_BLOCKS_WRITEPROTECTED
+- mask_flags: MTD_WRITEABLE,
++ .mask_flags = MTD_WRITEABLE,
+ #endif
+ },
+ };
+@@ -447,18 +401,19 @@
+ }
+
+ printk(KERN_NOTICE "DIL/Net %s flash: 0x%lx at 0x%lx\n",
+- is_dnp ? "DNPC" : "ADNP", dnpc_map.size, dnpc_map.map_priv_2);
++ is_dnp ? "DNPC" : "ADNP", dnpc_map.size, dnpc_map.phys);
+
+- dnpc_map.map_priv_1 = (unsigned long)ioremap_nocache(dnpc_map.map_priv_2, dnpc_map.size);
++ dnpc_map.virt = (unsigned long)ioremap_nocache(dnpc_map.phys, dnpc_map.size);
+
+- dnpc_map_flash(dnpc_map.map_priv_2, dnpc_map.size);
++ dnpc_map_flash(dnpc_map.phys, dnpc_map.size);
+
+- if (!dnpc_map.map_priv_1) {
++ if (!dnpc_map.virt) {
+ printk("Failed to ioremap_nocache\n");
+ return -EIO;
+ }
++ simple_map_init(&dnpc_map);
+
+- printk("FLASH virtual address: 0x%lx\n", dnpc_map.map_priv_1);
++ printk("FLASH virtual address: 0x%lx\n", dnpc_map.virt);
+
+ mymtd = do_map_probe("jedec_probe", &dnpc_map);
+
+@@ -475,11 +430,11 @@
+ mymtd->erasesize = 0x10000;
+
+ if (!mymtd) {
+- iounmap((void *)dnpc_map.map_priv_1);
++ iounmap((void *)dnpc_map.virt);
+ return -ENXIO;
+ }
+
+- mymtd->module = THIS_MODULE;
++ mymtd->owner = THIS_MODULE;
+
+ /*
+ ** Supply pointers to lowlvl_parts[] array to add_mtd_partitions()
+@@ -525,10 +480,10 @@
+ del_mtd_partitions(mymtd);
+ map_destroy(mymtd);
+ }
+- if (dnpc_map.map_priv_1) {
+- iounmap((void *)dnpc_map.map_priv_1);
++ if (dnpc_map.virt) {
++ iounmap((void *)dnpc_map.virt);
+ dnpc_unmap_flash();
+- dnpc_map.map_priv_1 = 0;
++ dnpc_map.virt = 0;
+ }
+ }
+
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/ebony.c linux/drivers/mtd/maps/ebony.c
+--- linux-mips-2.4.27/drivers/mtd/maps/ebony.c 1970-01-01 01:00:00.000000000 +0100
++++ linux/drivers/mtd/maps/ebony.c 2004-11-19 10:25:11.909198272 +0100
+@@ -0,0 +1,164 @@
++/*
++ * $Id: ebony.c,v 1.8 2003/06/23 11:48:18 dwmw2 Exp $
++ *
++ * Mapping for Ebony user flash
++ *
++ * Matt Porter <mporter@mvista.com>
++ *
++ * Copyright 2002 MontaVista Software Inc.
++ *
++ * This program is free software; you can redistribute it and/or modify it
++ * under the terms of the GNU General Public License as published by the
++ * Free Software Foundation; either version 2 of the License, or (at your
++ * option) any later version.
++ */
++
++#include <linux/module.h>
++#include <linux/types.h>
++#include <linux/kernel.h>
++#include <linux/init.h>
++#include <linux/mtd/mtd.h>
++#include <linux/mtd/map.h>
++#include <linux/mtd/partitions.h>
++#include <linux/config.h>
++#include <asm/io.h>
++#include <asm/ibm440.h>
++#include <platforms/ebony.h>
++
++static struct mtd_info *flash;
++
++static struct map_info ebony_small_map = {
++ .name = "Ebony small flash",
++ .size = EBONY_SMALL_FLASH_SIZE,
++ .buswidth = 1,
++};
++
++static struct map_info ebony_large_map = {
++ .name = "Ebony large flash",
++ .size = EBONY_LARGE_FLASH_SIZE,
++ .buswidth = 1,
++};
++
++static struct mtd_partition ebony_small_partitions[] = {
++ {
++ .name = "OpenBIOS",
++ .offset = 0x0,
++ .size = 0x80000,
++ }
++};
++
++static struct mtd_partition ebony_large_partitions[] = {
++ {
++ .name = "fs",
++ .offset = 0,
++ .size = 0x380000,
++ },
++ {
++ .name = "firmware",
++ .offset = 0x380000,
++ .size = 0x80000,
++ }
++};
++
++int __init init_ebony(void)
++{
++ u8 fpga0_reg;
++ unsigned long fpga0_adr;
++ unsigned long long small_flash_base, large_flash_base;
++
++ fpga0_adr = ioremap64(EBONY_FPGA_ADDR, 16);
++ if (!fpga0_adr)
++ return -ENOMEM;
++
++ fpga0_reg = readb(fpga0_adr);
++ iounmap64(fpga0_adr);
++
++ if (EBONY_BOOT_SMALL_FLASH(fpga0_reg) &&
++ !EBONY_FLASH_SEL(fpga0_reg))
++ small_flash_base = EBONY_SMALL_FLASH_HIGH2;
++ else if (EBONY_BOOT_SMALL_FLASH(fpga0_reg) &&
++ EBONY_FLASH_SEL(fpga0_reg))
++ small_flash_base = EBONY_SMALL_FLASH_HIGH1;
++ else if (!EBONY_BOOT_SMALL_FLASH(fpga0_reg) &&
++ !EBONY_FLASH_SEL(fpga0_reg))
++ small_flash_base = EBONY_SMALL_FLASH_LOW2;
++ else
++ small_flash_base = EBONY_SMALL_FLASH_LOW1;
++
++ if (EBONY_BOOT_SMALL_FLASH(fpga0_reg) &&
++ !EBONY_ONBRD_FLASH_EN(fpga0_reg))
++ large_flash_base = EBONY_LARGE_FLASH_LOW;
++ else
++ large_flash_base = EBONY_LARGE_FLASH_HIGH;
++
++ ebony_small_map.phys = small_flash_base;
++ ebony_small_map.virt =
++ (unsigned long)ioremap64(small_flash_base,
++ ebony_small_map.size);
++
++ if (!ebony_small_map.virt) {
++ printk("Failed to ioremap flash\n");
++ return -EIO;
++ }
++
++ simple_map_init(&ebony_small_map);
++
++ flash = do_map_probe("map_rom", &ebony_small_map);
++ if (flash) {
++ flash->owner = THIS_MODULE;
++ add_mtd_partitions(flash, ebony_small_partitions,
++ ARRAY_SIZE(ebony_small_partitions));
++ } else {
++ printk("map probe failed for flash\n");
++ return -ENXIO;
++ }
++
++ ebony_large_map.phys = large_flash_base;
++ ebony_large_map.virt =
++ (unsigned long)ioremap64(large_flash_base,
++ ebony_large_map.size);
++
++ if (!ebony_large_map.virt) {
++ printk("Failed to ioremap flash\n");
++ return -EIO;
++ }
++
++ simple_map_init(&ebony_large_map);
++
++ flash = do_map_probe("cfi_probe", &ebony_large_map);
++ if (flash) {
++ flash->owner = THIS_MODULE;
++ add_mtd_partitions(flash, ebony_large_partitions,
++ ARRAY_SIZE(ebony_large_partitions));
++ } else {
++ printk("map probe failed for flash\n");
++ return -ENXIO;
++ }
++
++ return 0;
++}
++
++static void __exit cleanup_ebony(void)
++{
++ if (flash) {
++ del_mtd_partitions(flash);
++ map_destroy(flash);
++ }
++
++ if (ebony_small_map.virt) {
++ iounmap((void *)ebony_small_map.virt);
++ ebony_small_map.virt = 0;
++ }
++
++ if (ebony_large_map.virt) {
++ iounmap((void *)ebony_large_map.virt);
++ ebony_large_map.virt = 0;
++ }
++}
++
++module_init(init_ebony);
++module_exit(cleanup_ebony);
++
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("Matt Porter <mporter@mvista.com>");
++MODULE_DESCRIPTION("MTD map and partitions for IBM 440GP Ebony boards");
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/edb7312.c linux/drivers/mtd/maps/edb7312.c
+--- linux-mips-2.4.27/drivers/mtd/maps/edb7312.c 2003-02-26 01:53:49.000000000 +0100
++++ linux/drivers/mtd/maps/edb7312.c 2004-11-19 10:25:11.910198120 +0100
+@@ -1,5 +1,5 @@
+ /*
+- * $Id: edb7312.c,v 1.2 2002/09/05 05:11:24 acurtis Exp $
++ * $Id: edb7312.c,v 1.9 2003/06/23 11:48:18 dwmw2 Exp $
+ *
+ * Handle mapping of the NOR flash on Cogent EDB7312 boards
+ *
+@@ -13,6 +13,7 @@
+ #include <linux/module.h>
+ #include <linux/types.h>
+ #include <linux/kernel.h>
++#include <linux/init.h>
+ #include <asm/io.h>
+ #include <linux/mtd/mtd.h>
+ #include <linux/mtd/map.h>
+@@ -35,61 +36,11 @@
+
+ static struct mtd_info *mymtd;
+
+-__u8 edb7312nor_read8(struct map_info *map, unsigned long ofs)
+-{
+- return __raw_readb(map->map_priv_1 + ofs);
+-}
+-
+-__u16 edb7312nor_read16(struct map_info *map, unsigned long ofs)
+-{
+- return __raw_readw(map->map_priv_1 + ofs);
+-}
+-
+-__u32 edb7312nor_read32(struct map_info *map, unsigned long ofs)
+-{
+- return __raw_readl(map->map_priv_1 + ofs);
+-}
+-
+-void edb7312nor_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
+-{
+- memcpy_fromio(to, map->map_priv_1 + from, len);
+-}
+-
+-void edb7312nor_write8(struct map_info *map, __u8 d, unsigned long adr)
+-{
+- __raw_writeb(d, map->map_priv_1 + adr);
+- mb();
+-}
+-
+-void edb7312nor_write16(struct map_info *map, __u16 d, unsigned long adr)
+-{
+- __raw_writew(d, map->map_priv_1 + adr);
+- mb();
+-}
+-
+-void edb7312nor_write32(struct map_info *map, __u32 d, unsigned long adr)
+-{
+- __raw_writel(d, map->map_priv_1 + adr);
+- mb();
+-}
+-
+-void edb7312nor_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
+-{
+- memcpy_toio(map->map_priv_1 + to, from, len);
+-}
+-
+ struct map_info edb7312nor_map = {
+- name: "NOR flash on EDB7312",
+- size: WINDOW_SIZE,
+- buswidth: BUSWIDTH,
+- read8: edb7312nor_read8,
+- read16: edb7312nor_read16,
+- read32: edb7312nor_read32,
+- copy_from: edb7312nor_copy_from,
+- write8: edb7312nor_write8,
+- write16: edb7312nor_write16,
+- write32: edb7312nor_write32,
+- copy_to: edb7312nor_copy_to
++ .name = "NOR flash on EDB7312",
++ .size = WINDOW_SIZE,
++ .buswidth = BUSWIDTH,
++ .phys = WINDOW_ADDR,
+ };
+
+ #ifdef CONFIG_MTD_PARTITIONS
+@@ -100,29 +51,23 @@
+ static struct mtd_partition static_partitions[3] =
+ {
+ {
+- name: "ARMboot",
+- size: 0x40000,
+- offset: 0
++ .name = "ARMboot",
++ .size = 0x40000,
++ .offset = 0
+ },
+ {
+- name: "Kernel",
+- size: 0x200000,
+- offset: 0x40000
++ .name = "Kernel",
++ .size = 0x200000,
++ .offset = 0x40000
+ },
+ {
+- name: "RootFS",
+- size: 0xDC0000,
+- offset: 0x240000
++ .name = "RootFS",
++ .size = 0xDC0000,
++ .offset = 0x240000
+ },
+ };
+
+-#define NB_OF(x) (sizeof (x) / sizeof (x[0]))
+-
+-#ifdef CONFIG_MTD_CMDLINE_PARTS
+-int parse_cmdline_partitions(struct mtd_info *master,
+- struct mtd_partition **pparts,
+- const char *mtd_id);
+-#endif
++static const char *probes[] = { "RedBoot", "cmdlinepart", NULL };
+
+ #endif
+
+@@ -137,32 +82,33 @@
+
+ printk(KERN_NOTICE MSG_PREFIX "0x%08x at 0x%08x\n",
+ WINDOW_SIZE, WINDOW_ADDR);
+- edb7312nor_map.map_priv_1 = (unsigned long)
++ edb7312nor_map.virt = (unsigned long)
+ ioremap(WINDOW_ADDR, WINDOW_SIZE);
+
+- if (!edb7312nor_map.map_priv_1) {
++ if (!edb7312nor_map.virt) {
+ printk(MSG_PREFIX "failed to ioremap\n");
+ return -EIO;
+ }
+
++ simple_map_init(&edb7312nor_map);
++
+ mymtd = 0;
+ type = rom_probe_types;
+ for(; !mymtd && *type; type++) {
+ mymtd = do_map_probe(*type, &edb7312nor_map);
+ }
+ if (mymtd) {
+- mymtd->module = THIS_MODULE;
++ mymtd->owner = THIS_MODULE;
+
+ #ifdef CONFIG_MTD_PARTITIONS
+-#ifdef CONFIG_MTD_CMDLINE_PARTS
+- mtd_parts_nb = parse_cmdline_partitions(mymtd, &mtd_parts, MTDID);
++ mtd_parts_nb = parse_mtd_partitions(mymtd, probes, &mtd_parts, MTDID);
+ if (mtd_parts_nb > 0)
+- part_type = "command line";
+-#endif
++ part_type = "detected";
++
+ if (mtd_parts_nb == 0)
+ {
+ mtd_parts = static_partitions;
+- mtd_parts_nb = NB_OF(static_partitions);
++ mtd_parts_nb = ARRAY_SIZE(static_partitions);
+ part_type = "static";
+ }
+ #endif
+@@ -178,7 +124,7 @@
+ return 0;
+ }
+
+- iounmap((void *)edb7312nor_map.map_priv_1);
++ iounmap((void *)edb7312nor_map.virt);
+ return -ENXIO;
+ }
+
+@@ -188,9 +134,9 @@
+ del_mtd_device(mymtd);
+ map_destroy(mymtd);
+ }
+- if (edb7312nor_map.map_priv_1) {
+- iounmap((void *)edb7312nor_map.map_priv_1);
+- edb7312nor_map.map_priv_1 = 0;
++ if (edb7312nor_map.virt) {
++ iounmap((void *)edb7312nor_map.virt);
++ edb7312nor_map.virt = 0;
+ }
+ }
+
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/elan-104nc.c linux/drivers/mtd/maps/elan-104nc.c
+--- linux-mips-2.4.27/drivers/mtd/maps/elan-104nc.c 2002-06-27 00:35:50.000000000 +0200
++++ linux/drivers/mtd/maps/elan-104nc.c 2004-11-19 10:25:11.912197816 +0100
+@@ -16,7 +16,7 @@
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+
+- $Id: elan-104nc.c,v 1.13 2002/02/13 15:30:20 dwmw2 Exp $
++ $Id: elan-104nc.c,v 1.18 2003/06/23 07:37:02 dwmw2 Exp $
+
+ The ELAN-104NC has up to 8 Mibyte of Intel StrataFlash (28F320/28F640) in x16
+ mode. This drivers uses the CFI probe and Intel Extended Command Set drivers.
+@@ -40,6 +40,7 @@
+ #include <asm/io.h>
+
+ #include <linux/mtd/map.h>
++#include <linux/mtd/mtd.h>
+ #include <linux/mtd/partitions.h>
+
+ #define WINDOW_START 0xb0000
+@@ -59,14 +60,14 @@
+ * single flash device into. If the size if zero we use up to the end of the
+ * device. */
+ static struct mtd_partition partition_info[]={
+- { name: "ELAN-104NC flash boot partition",
+- offset: 0,
+- size: 640*1024 },
+- { name: "ELAN-104NC flash partition 1",
+- offset: 640*1024,
+- size: 896*1024 },
+- { name: "ELAN-104NC flash partition 2",
+- offset: (640+896)*1024 }
++ { .name = "ELAN-104NC flash boot partition",
++ .offset = 0,
++ .size = 640*1024 },
++ { .name = "ELAN-104NC flash partition 1",
++ .offset = 640*1024,
++ .size = 896*1024 },
++ { .name = "ELAN-104NC flash partition 2",
++ .offset = (640+896)*1024 }
+ };
+ #define NUM_PARTITIONS (sizeof(partition_info)/sizeof(partition_info[0]))
+
+@@ -195,19 +196,20 @@
+ }
+
+ static struct map_info elan_104nc_map = {
+- name: "ELAN-104NC flash",
+- size: 8*1024*1024, /* this must be set to a maximum possible amount
++ .name = "ELAN-104NC flash",
++ .phys = NO_XIP,
++ .size = 8*1024*1024, /* this must be set to a maximum possible amount
+ of flash so the cfi probe routines find all
+ the chips */
+- buswidth: 2,
+- read8: elan_104nc_read8,
+- read16: elan_104nc_read16,
+- read32: elan_104nc_read32,
+- copy_from: elan_104nc_copy_from,
+- write8: elan_104nc_write8,
+- write16: elan_104nc_write16,
+- write32: elan_104nc_write32,
+- copy_to: elan_104nc_copy_to
++ .buswidth = 2,
++ .read8 = elan_104nc_read8,
++ .read16 = elan_104nc_read16,
++ .read32 = elan_104nc_read32,
++ .copy_from = elan_104nc_copy_from,
++ .write8 = elan_104nc_write8,
++ .write16 = elan_104nc_write16,
++ .write32 = elan_104nc_write32,
++ .copy_to = elan_104nc_copy_to
+ };
+
+ /* MTD device for all of the flash. */
+@@ -221,20 +223,13 @@
+ }
+
+ iounmap((void *)iomapadr);
+- release_region(PAGE_IO,PAGE_IO_SIZE);
+ }
+
+ int __init init_elan_104nc(void)
+ {
+- /* Urg! We use I/O port 0x22 without request_region()ing it */
+- /*
+- if (check_region(PAGE_IO,PAGE_IO_SIZE) != 0) {
+- printk( KERN_ERR"%s: IO ports 0x%x-0x%x in use\n",
+- elan_104nc_map.name,
+- PAGE_IO, PAGE_IO+PAGE_IO_SIZE-1 );
+- return -EAGAIN;
+- }
+- */
++ /* Urg! We use I/O port 0x22 without request_region()ing it,
++ because it's already allocated to the PIC. */
++
+ iomapadr = (unsigned long)ioremap(WINDOW_START, WINDOW_LENGTH);
+ if (!iomapadr) {
+ printk( KERN_ERR"%s: failed to ioremap memory region\n",
+@@ -242,10 +237,6 @@
+ return -EIO;
+ }
+
+- /*
+- request_region( PAGE_IO, PAGE_IO_SIZE, "ELAN-104NC flash" );
+- */
+-
+ printk( KERN_INFO"%s: IO:0x%x-0x%x MEM:0x%x-0x%x\n",
+ elan_104nc_map.name,
+ PAGE_IO, PAGE_IO+PAGE_IO_SIZE-1,
+@@ -260,7 +251,7 @@
+ return -ENXIO;
+ }
+
+- all_mtd->module=THIS_MODULE;
++ all_mtd->owner = THIS_MODULE;
+
+ /* Create MTD devices for each partition. */
+ add_mtd_partitions( all_mtd, partition_info, NUM_PARTITIONS );
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/epxa10db-flash.c linux/drivers/mtd/maps/epxa10db-flash.c
+--- linux-mips-2.4.27/drivers/mtd/maps/epxa10db-flash.c 2003-02-26 01:53:49.000000000 +0100
++++ linux/drivers/mtd/maps/epxa10db-flash.c 2004-11-19 10:25:11.913197664 +0100
+@@ -5,7 +5,7 @@
+ * Copyright (C) 2001 Altera Corporation
+ * Copyright (C) 2001 Red Hat, Inc.
+ *
+- * $Id: epxa10db-flash.c,v 1.4 2002/08/22 10:46:19 cdavies Exp $
++ * $Id: epxa10db-flash.c,v 1.10 2003/05/21 12:45:18 dwmw2 Exp $
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+@@ -26,6 +26,7 @@
+ #include <linux/module.h>
+ #include <linux/types.h>
+ #include <linux/kernel.h>
++#include <linux/init.h>
+ #include <asm/io.h>
+ #include <linux/mtd/mtd.h>
+ #include <linux/mtd/map.h>
+@@ -43,87 +44,38 @@
+
+ static struct mtd_info *mymtd;
+
+-extern int parse_redboot_partitions(struct mtd_info *, struct mtd_partition **);
+ static int epxa_default_partitions(struct mtd_info *master, struct mtd_partition **pparts);
+
+-static __u8 epxa_read8(struct map_info *map, unsigned long ofs)
+-{
+- return __raw_readb(map->map_priv_1 + ofs);
+-}
+-
+-static __u16 epxa_read16(struct map_info *map, unsigned long ofs)
+-{
+- return __raw_readw(map->map_priv_1 + ofs);
+-}
+-
+-static __u32 epxa_read32(struct map_info *map, unsigned long ofs)
+-{
+- return __raw_readl(map->map_priv_1 + ofs);
+-}
+-
+-static void epxa_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
+-{
+- memcpy_fromio(to, (void *)(map->map_priv_1 + from), len);
+-}
+-
+-static void epxa_write8(struct map_info *map, __u8 d, unsigned long adr)
+-{
+- __raw_writeb(d, map->map_priv_1 + adr);
+- mb();
+-}
+-
+-static void epxa_write16(struct map_info *map, __u16 d, unsigned long adr)
+-{
+- __raw_writew(d, map->map_priv_1 + adr);
+- mb();
+-}
+-
+-static void epxa_write32(struct map_info *map, __u32 d, unsigned long adr)
+-{
+- __raw_writel(d, map->map_priv_1 + adr);
+- mb();
+-}
+-
+-static void epxa_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
+-{
+- memcpy_toio((void *)(map->map_priv_1 + to), from, len);
+-}
+-
+-
+
+ static struct map_info epxa_map = {
+- name: "EPXA flash",
+- size: FLASH_SIZE,
+- buswidth: 2,
+- read8: epxa_read8,
+- read16: epxa_read16,
+- read32: epxa_read32,
+- copy_from: epxa_copy_from,
+- write8: epxa_write8,
+- write16: epxa_write16,
+- write32: epxa_write32,
+- copy_to: epxa_copy_to
++ .name = "EPXA flash",
++ .size = FLASH_SIZE,
++ .buswidth = 2,
++ .phys = FLASH_START,
+ };
+
++static const char *probes[] = { "RedBoot", "afs", NULL };
+
+ static int __init epxa_mtd_init(void)
+ {
+ int i;
+
+- printk(KERN_NOTICE "%s flash device: %x at %x\n", BOARD_NAME, FLASH_SIZE, FLASH_START);
+- epxa_map.map_priv_1 = (unsigned long)ioremap(FLASH_START, FLASH_SIZE);
+- if (!epxa_map.map_priv_1) {
++ printk(KERN_NOTICE "%s flash device: 0x%x at 0x%x\n", BOARD_NAME, FLASH_SIZE, FLASH_START);
++
++ epxa_map.virt = (unsigned long)ioremap(FLASH_START, FLASH_SIZE);
++ if (!epxa_map.virt) {
+ printk("Failed to ioremap %s flash\n",BOARD_NAME);
+ return -EIO;
+ }
++ simple_map_init(&epxa_map);
+
+ mymtd = do_map_probe("cfi_probe", &epxa_map);
+ if (!mymtd) {
+- iounmap((void *)epxa_map.map_priv_1);
++ iounmap((void *)epxa_map.virt);
+ return -ENXIO;
+ }
+
+- mymtd->module = THIS_MODULE;
++ mymtd->owner = THIS_MODULE;
+
+ /* Unlock the flash device. */
+ if(mymtd->unlock){
+@@ -135,23 +87,14 @@
+ }
+ }
+
+-#ifdef CONFIG_MTD_REDBOOT_PARTS
+- nr_parts = parse_redboot_partitions(mymtd, &parts);
+-
+- if (nr_parts > 0) {
+- add_mtd_partitions(mymtd, parts, nr_parts);
+- return 0;
+- }
+-#endif
+-#ifdef CONFIG_MTD_AFS_PARTS
+- nr_parts = parse_afs_partitions(mymtd, &parts);
++#ifdef CONFIG_MTD_PARTITIONS
++ nr_parts = parse_mtd_partitions(mymtd, probes, &parts, 0);
+
+ if (nr_parts > 0) {
+ add_mtd_partitions(mymtd, parts, nr_parts);
+ return 0;
+ }
+ #endif
+-
+ /* No recognised partitioning schemes found - use defaults */
+ nr_parts = epxa_default_partitions(mymtd, &parts);
+ if (nr_parts > 0) {
+@@ -173,9 +116,9 @@
+ del_mtd_device(mymtd);
+ map_destroy(mymtd);
+ }
+- if (epxa_map.map_priv_1) {
+- iounmap((void *)epxa_map.map_priv_1);
+- epxa_map.map_priv_1 = 0;
++ if (epxa_map.virt) {
++ iounmap((void *)epxa_map.virt);
++ epxa_map.virt = 0;
+ }
+ }
+
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/fortunet.c linux/drivers/mtd/maps/fortunet.c
+--- linux-mips-2.4.27/drivers/mtd/maps/fortunet.c 2003-02-26 01:53:49.000000000 +0100
++++ linux/drivers/mtd/maps/fortunet.c 2004-11-19 10:25:11.915197360 +0100
+@@ -1,11 +1,12 @@
+ /* fortunet.c memory map
+ *
+- * $Id: fortunet.c,v 1.2 2002/10/14 12:50:22 rmk Exp $
++ * $Id: fortunet.c,v 1.6 2003/05/21 12:45:18 dwmw2 Exp $
+ */
+
+ #include <linux/module.h>
+ #include <linux/types.h>
+ #include <linux/kernel.h>
++#include <linux/init.h>
+ #include <asm/io.h>
+ #include <linux/mtd/mtd.h>
+ #include <linux/mtd/map.h>
+@@ -23,7 +24,7 @@
+
+ struct map_region
+ {
+- int window_addr_phyical;
++ int window_addr_physical;
+ int altbuswidth;
+ struct map_info map_info;
+ struct mtd_info *mymtd;
+@@ -37,57 +38,10 @@
+ static int map_regions_parts[MAX_NUM_REGIONS] = {0,0,0,0};
+
+
+-__u8 fortunet_read8(struct map_info *map, unsigned long ofs)
+-{
+- return *(__u8 *)(map->map_priv_1 + ofs);
+-}
+-
+-__u16 fortunet_read16(struct map_info *map, unsigned long ofs)
+-{
+- return *(__u16 *)(map->map_priv_1 + ofs);
+-}
+-
+-__u32 fortunet_read32(struct map_info *map, unsigned long ofs)
+-{
+- return *(__u32 *)(map->map_priv_1 + ofs);
+-}
+-
+-void fortunet_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
+-{
+- memcpy(to, (void *)(map->map_priv_1 + from), len);
+-}
+-
+-void fortunet_write8(struct map_info *map, __u8 d, unsigned long adr)
+-{
+- *(__u8 *)(map->map_priv_1 + adr) = d;
+-}
+-
+-void fortunet_write16(struct map_info *map, __u16 d, unsigned long adr)
+-{
+- *(__u16 *)(map->map_priv_1 + adr) = d;
+-}
+-
+-void fortunet_write32(struct map_info *map, __u32 d, unsigned long adr)
+-{
+- *(__u32 *)(map->map_priv_1 + adr) = d;
+-}
+-
+-void fortunet_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
+-{
+- memcpy((void *)(map->map_priv_1 + to), from, len);
+-}
+
+ struct map_info default_map = {
+- size: DEF_WINDOW_SIZE,
+- buswidth: 4,
+- read8: fortunet_read8,
+- read16: fortunet_read16,
+- read32: fortunet_read32,
+- copy_from: fortunet_copy_from,
+- write8: fortunet_write8,
+- write16: fortunet_write16,
+- write32: fortunet_write32,
+- copy_to: fortunet_copy_to
++ .size = DEF_WINDOW_SIZE,
++ .buswidth = 4,
+ };
+
+ static char * __init get_string_option(char *dest,int dest_size,char *sor)
+@@ -147,7 +101,7 @@
+ get_options (get_string_option(string,sizeof(string),line),6,params);
+ if(params[0]<1)
+ {
+- printk(MTD_FORTUNET_PK "Bad paramters for MTD Region "
++ printk(MTD_FORTUNET_PK "Bad parameters for MTD Region "
+ " name,region-number[,base,size,buswidth,altbuswidth]\n");
+ return 1;
+ }
+@@ -161,14 +115,14 @@
+ memcpy(&map_regions[params[1]].map_info,
+ &default_map,sizeof(map_regions[params[1]].map_info));
+ map_regions_set[params[1]] = 1;
+- map_regions[params[1]].window_addr_phyical = DEF_WINDOW_ADDR_PHY;
++ map_regions[params[1]].window_addr_physical = DEF_WINDOW_ADDR_PHY;
+ map_regions[params[1]].altbuswidth = 2;
+ map_regions[params[1]].mymtd = NULL;
+ map_regions[params[1]].map_info.name = map_regions[params[1]].map_name;
+ strcpy(map_regions[params[1]].map_info.name,string);
+ if(params[0]>1)
+ {
+- map_regions[params[1]].window_addr_phyical = params[2];
++ map_regions[params[1]].window_addr_physical = params[2];
+ }
+ if(params[0]>2)
+ {
+@@ -185,14 +139,14 @@
+ return 1;
+ }
+
+-static int __init MTD_New_Partion(char *line)
++static int __init MTD_New_Partition(char *line)
+ {
+ char string[MAX_NAME_SIZE];
+ int params[4];
+ get_options (get_string_option(string,sizeof(string),line),4,params);
+ if(params[0]<3)
+ {
+- printk(MTD_FORTUNET_PK "Bad paramters for MTD Partion "
++ printk(MTD_FORTUNET_PK "Bad parameters for MTD Partition "
+ " name,region-number,size,offset\n");
+ return 1;
+ }
+@@ -204,7 +158,7 @@
+ }
+ if(map_regions_parts[params[1]]>=MAX_NUM_PARTITIONS)
+ {
+- printk(MTD_FORTUNET_PK "Out of space for partion in this region\n");
++ printk(MTD_FORTUNET_PK "Out of space for partition in this region\n");
+ return 1;
+ }
+ map_regions[params[1]].parts[map_regions_parts[params[1]]].name =
+@@ -220,7 +174,10 @@
+ }
+
+ __setup("MTD_Region=", MTD_New_Region);
+-__setup("MTD_Partion=", MTD_New_Partion);
++__setup("MTD_Partition=", MTD_New_Partition);
++
++/* Backwards-spelling-compatibility */
++__setup("MTD_Partion=", MTD_New_Partition);
+
+ int __init init_fortunet(void)
+ {
+@@ -229,13 +186,13 @@
+ {
+ if(map_regions_parts[ix]&&(!map_regions_set[ix]))
+ {
+- printk(MTD_FORTUNET_PK "Region %d is not setup (Seting to default)\n",
++ printk(MTD_FORTUNET_PK "Region %d is not setup (Setting to default)\n",
+ ix);
+ memset(&map_regions[ix],0,sizeof(map_regions[ix]));
+ memcpy(&map_regions[ix].map_info,&default_map,
+ sizeof(map_regions[ix].map_info));
+ map_regions_set[ix] = 1;
+- map_regions[ix].window_addr_phyical = DEF_WINDOW_ADDR_PHY;
++ map_regions[ix].window_addr_physical = DEF_WINDOW_ADDR_PHY;
+ map_regions[ix].altbuswidth = 2;
+ map_regions[ix].mymtd = NULL;
+ map_regions[ix].map_info.name = map_regions[ix].map_name;
+@@ -244,30 +201,35 @@
+ if(map_regions_set[ix])
+ {
+ iy++;
+- printk(KERN_NOTICE MTD_FORTUNET_PK "%s flash device at phyicaly "
++ printk(KERN_NOTICE MTD_FORTUNET_PK "%s flash device at physically "
+ " address %x size %x\n",
+ map_regions[ix].map_info.name,
+- map_regions[ix].window_addr_phyical,
++ map_regions[ix].window_addr_physical,
+ map_regions[ix].map_info.size);
+- map_regions[ix].map_info.map_priv_1 =
++
++ map_regions[ix].map_info.phys = map_regions[ix].window_addr_physical,
++
++ map_regions[ix].map_info.virt =
+ (int)ioremap_nocache(
+- map_regions[ix].window_addr_phyical,
++ map_regions[ix].window_addr_physical,
+ map_regions[ix].map_info.size);
+- if(!map_regions[ix].map_info.map_priv_1)
++ if(!map_regions[ix].map_info.virt)
+ {
+ printk(MTD_FORTUNET_PK "%s flash failed to ioremap!\n",
+ map_regions[ix].map_info.name);
+ return -ENXIO;
+ }
+- printk(KERN_NOTICE MTD_FORTUNET_PK "%s flash is veritualy at: %x\n",
++ simple_map_init(&map_regions[ix].map_info);
++
++ printk(KERN_NOTICE MTD_FORTUNET_PK "%s flash is virtually at: %x\n",
+ map_regions[ix].map_info.name,
+- map_regions[ix].map_info.map_priv_1);
++ map_regions[ix].map_info.virt);
+ map_regions[ix].mymtd = do_map_probe("cfi_probe",
+ &map_regions[ix].map_info);
+ if((!map_regions[ix].mymtd)&&(
+ map_regions[ix].altbuswidth!=map_regions[ix].map_info.buswidth))
+ {
+- printk(KERN_NOTICE MTD_FORTUNET_PK "Trying alternet buswidth "
++ printk(KERN_NOTICE MTD_FORTUNET_PK "Trying alternate buswidth "
+ "for %s flash.\n",
+ map_regions[ix].map_info.name);
+ map_regions[ix].map_info.buswidth =
+@@ -275,7 +237,7 @@
+ map_regions[ix].mymtd = do_map_probe("cfi_probe",
+ &map_regions[ix].map_info);
+ }
+- map_regions[ix].mymtd->module = THIS_MODULE;
++ map_regions[ix].mymtd->owner = THIS_MODULE;
+ add_mtd_partitions(map_regions[ix].mymtd,
+ map_regions[ix].parts,map_regions_parts[ix]);
+ }
+@@ -297,7 +259,7 @@
+ del_mtd_partitions( map_regions[ix].mymtd );
+ map_destroy( map_regions[ix].mymtd );
+ }
+- iounmap((void *)map_regions[ix].map_info.map_priv_1);
++ iounmap((void *)map_regions[ix].map_info.virt);
+ }
+ }
+ }
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/h720x-flash.c linux/drivers/mtd/maps/h720x-flash.c
+--- linux-mips-2.4.27/drivers/mtd/maps/h720x-flash.c 1970-01-01 01:00:00.000000000 +0100
++++ linux/drivers/mtd/maps/h720x-flash.c 2004-11-19 10:25:11.917197056 +0100
+@@ -0,0 +1,142 @@
++/*
++ * Flash memory access on Hynix GMS30C7201/HMS30C7202 based
++ * evaluation boards
++ *
++ * (C) 2002 Jungjun Kim <jungjun.kim@hynix.com>
++ * 2003 Thomas Gleixner <tglx@linutronix.de>
++*/
++
++#include <linux/config.h>
++#include <linux/module.h>
++#include <linux/types.h>
++#include <linux/kernel.h>
++#include <linux/init.h>
++#include <linux/errno.h>
++#include <linux/slab.h>
++
++#include <linux/mtd/mtd.h>
++#include <linux/mtd/map.h>
++#include <linux/mtd/partitions.h>
++#include <asm/hardware.h>
++#include <asm/io.h>
++
++static struct mtd_info *mymtd;
++
++static struct map_info h720x_map = {
++ .name = "H720X",
++ .buswidth = 4,
++ .size = FLASH_SIZE,
++ .phys = FLASH_PHYS,
++};
++
++static struct mtd_partition h720x_partitions[] = {
++ {
++ .name = "ArMon",
++ .size = 0x00080000,
++ .offset = 0,
++ .mask_flags = MTD_WRITEABLE
++ },{
++ .name = "Env",
++ .size = 0x00040000,
++ .offset = 0x00080000,
++ .mask_flags = MTD_WRITEABLE
++ },{
++ .name = "Kernel",
++ .size = 0x00180000,
++ .offset = 0x000c0000,
++ .mask_flags = MTD_WRITEABLE
++ },{
++ .name = "Ramdisk",
++ .size = 0x00400000,
++ .offset = 0x00240000,
++ .mask_flags = MTD_WRITEABLE
++ },{
++ .name = "jffs2",
++ .size = MTDPART_SIZ_FULL,
++ .offset = MTDPART_OFS_APPEND
++ }
++};
++
++#define NUM_PARTITIONS (sizeof(h720x_partitions)/sizeof(h720x_partitions[0]))
++
++static int nr_mtd_parts;
++static struct mtd_partition *mtd_parts;
++static const char *probes[] = { "cmdlinepart", NULL };
++
++/*
++ * Initialize FLASH support
++ */
++int __init h720x_mtd_init(void)
++{
++
++ char *part_type = NULL;
++
++ h720x_map.virt = (unsigned long)ioremap(FLASH_PHYS, FLASH_SIZE);
++
++ if (!h720x_map.virt) {
++ printk(KERN_ERR "H720x-MTD: ioremap failed\n");
++ return -EIO;
++ }
++
++ simple_map_init(&h720x_map);
++
++ // Probe for flash buswidth 4
++ printk (KERN_INFO "H720x-MTD probing 32bit FLASH\n");
++ mymtd = do_map_probe("cfi_probe", &h720x_map);
++ if (!mymtd) {
++ printk (KERN_INFO "H720x-MTD probing 16bit FLASH\n");
++ // Probe for buswidth 2
++ h720x_map.buswidth = 2;
++ mymtd = do_map_probe("cfi_probe", &h720x_map);
++ }
++
++ if (mymtd) {
++ mymtd->owner = THIS_MODULE;
++
++#ifdef CONFIG_MTD_PARTITIONS
++ nr_mtd_parts = parse_mtd_partitions(mymtd, probes, &mtd_parts, 0);
++ if (nr_mtd_parts > 0)
++ part_type = "command line";
++#endif
++ if (nr_mtd_parts <= 0) {
++ mtd_parts = h720x_partitions;
++ nr_mtd_parts = NUM_PARTITIONS;
++ part_type = "builtin";
++ }
++ printk(KERN_INFO "Using %s partition table\n", part_type);
++ add_mtd_partitions(mymtd, mtd_parts, nr_mtd_parts);
++ return 0;
++ }
++
++ iounmap((void *)h720x_map.virt);
++ return -ENXIO;
++}
++
++/*
++ * Cleanup
++ */
++static void __exit h720x_mtd_cleanup(void)
++{
++
++ if (mymtd) {
++ del_mtd_partitions(mymtd);
++ map_destroy(mymtd);
++ }
++
++ /* Free partition info, if commandline partition was used */
++ if (mtd_parts && (mtd_parts != h720x_partitions))
++ kfree (mtd_parts);
++
++ if (h720x_map.virt) {
++ iounmap((void *)h720x_map.virt);
++ h720x_map.virt = 0;
++ }
++}
++
++
++module_init(h720x_mtd_init);
++module_exit(h720x_mtd_cleanup);
++
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("Thomas Gleixner <tglx@linutronix.de>");
++MODULE_DESCRIPTION("MTD map driver for Hynix evaluation boards");
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/ichxrom.c linux/drivers/mtd/maps/ichxrom.c
+--- linux-mips-2.4.27/drivers/mtd/maps/ichxrom.c 1970-01-01 01:00:00.000000000 +0100
++++ linux/drivers/mtd/maps/ichxrom.c 2004-11-19 10:25:11.918196904 +0100
+@@ -0,0 +1,380 @@
++/*
++ * ichxrom.c
++ *
++ * Normal mappings of chips in physical memory
++ * $Id: ichxrom.c,v 1.1 2003/10/27 19:49:23 thayne Exp $
++ */
++
++#include <linux/module.h>
++#include <linux/types.h>
++#include <linux/kernel.h>
++#include <linux/init.h>
++#include <asm/io.h>
++#include <linux/mtd/mtd.h>
++#include <linux/mtd/map.h>
++#include <linux/config.h>
++#include <linux/pci.h>
++#include <linux/pci_ids.h>
++
++#define xstr(s) str(s)
++#define str(s) #s
++#define MOD_NAME xstr(KBUILD_BASENAME)
++
++#define MTD_DEV_NAME_LENGTH 16
++
++#define RESERVE_MEM_REGION 0
++
++#define ICHX_FWH_REGION_START 0xFF000000UL
++#define ICHX_FWH_REGION_SIZE 0x01000000UL
++#define BIOS_CNTL 0x4e
++#define FWH_DEC_EN1 0xE3
++#define FWH_DEC_EN2 0xF0
++#define FWH_SEL1 0xE8
++#define FWH_SEL2 0xEE
++
++struct ichxrom_map_info {
++ struct map_info map;
++ struct mtd_info *mtd;
++ unsigned long window_addr;
++ struct pci_dev *pdev;
++ struct resource window_rsrc;
++ struct resource rom_rsrc;
++ char mtd_name[MTD_DEV_NAME_LENGTH];
++};
++
++static inline unsigned long addr(struct map_info *map, unsigned long ofs)
++{
++ unsigned long offset;
++ offset = ((8*1024*1024) - map->size) + ofs;
++ if (offset >= (4*1024*1024)) {
++ offset += 0x400000;
++ }
++ return map->map_priv_1 + 0x400000 + offset;
++}
++
++static inline unsigned long dbg_addr(struct map_info *map, unsigned long addr)
++{
++ return addr - map->map_priv_1 + ICHX_FWH_REGION_START;
++}
++
++static __u8 ichxrom_read8(struct map_info *map, unsigned long ofs)
++{
++ return __raw_readb(addr(map, ofs));
++}
++
++static __u16 ichxrom_read16(struct map_info *map, unsigned long ofs)
++{
++ return __raw_readw(addr(map, ofs));
++}
++
++static __u32 ichxrom_read32(struct map_info *map, unsigned long ofs)
++{
++ return __raw_readl(addr(map, ofs));
++}
++
++static void ichxrom_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
++{
++ memcpy_fromio(to, addr(map, from), len);
++}
++
++static void ichxrom_write8(struct map_info *map, __u8 d, unsigned long ofs)
++{
++ __raw_writeb(d, addr(map,ofs));
++ mb();
++}
++
++static void ichxrom_write16(struct map_info *map, __u16 d, unsigned long ofs)
++{
++ __raw_writew(d, addr(map, ofs));
++ mb();
++}
++
++static void ichxrom_write32(struct map_info *map, __u32 d, unsigned long ofs)
++{
++ __raw_writel(d, addr(map, ofs));
++ mb();
++}
++
++static void ichxrom_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
++{
++ memcpy_toio(addr(map, to), from, len);
++}
++
++static struct ichxrom_map_info ichxrom_map = {
++ .map = {
++ .name = MOD_NAME,
++ .phys = NO_XIP,
++ .size = 0,
++ .buswidth = 1,
++ .read8 = ichxrom_read8,
++ .read16 = ichxrom_read16,
++ .read32 = ichxrom_read32,
++ .copy_from = ichxrom_copy_from,
++ .write8 = ichxrom_write8,
++ .write16 = ichxrom_write16,
++ .write32 = ichxrom_write32,
++ .copy_to = ichxrom_copy_to,
++ /* Firmware hubs only use vpp when being programmed
++ * in a factory setting. So in-place programming
++ * needs to use a different method.
++ */
++ },
++ /* remaining fields of structure are initialized to 0 */
++};
++
++enum fwh_lock_state {
++ FWH_DENY_WRITE = 1,
++ FWH_IMMUTABLE = 2,
++ FWH_DENY_READ = 4,
++};
++
++static void ichxrom_cleanup(struct ichxrom_map_info *info)
++{
++ u16 word;
++
++ /* Disable writes through the rom window */
++ pci_read_config_word(info->pdev, BIOS_CNTL, &word);
++ pci_write_config_word(info->pdev, BIOS_CNTL, word & ~1);
++
++ if (info->mtd) {
++ del_mtd_device(info->mtd);
++ map_destroy(info->mtd);
++ info->mtd = NULL;
++ info->map.virt = 0;
++ }
++ if (info->rom_rsrc.parent)
++ release_resource(&info->rom_rsrc);
++ if (info->window_rsrc.parent)
++ release_resource(&info->window_rsrc);
++
++ if (info->window_addr) {
++ iounmap((void *)(info->window_addr));
++ info->window_addr = 0;
++ }
++}
++
++
++static int ichxrom_set_lock_state(struct mtd_info *mtd, loff_t ofs, size_t len,
++ enum fwh_lock_state state)
++{
++ struct map_info *map = mtd->priv;
++ unsigned long start = ofs;
++ unsigned long end = start + len -1;
++
++ /* FIXME do I need to guard against concurrency here? */
++ /* round down to 64K boundaries */
++ start = start & ~0xFFFF;
++ end = end & ~0xFFFF;
++ while (start <= end) {
++ unsigned long ctrl_addr;
++ ctrl_addr = addr(map, start) - 0x400000 + 2;
++ writeb(state, ctrl_addr);
++ start = start + 0x10000;
++ }
++ return 0;
++}
++
++static int ichxrom_lock(struct mtd_info *mtd, loff_t ofs, size_t len)
++{
++ return ichxrom_set_lock_state(mtd, ofs, len, FWH_DENY_WRITE);
++}
++
++static int ichxrom_unlock(struct mtd_info *mtd, loff_t ofs, size_t len)
++{
++ return ichxrom_set_lock_state(mtd, ofs, len, 0);
++}
++
++static int __devinit ichxrom_init_one (struct pci_dev *pdev,
++ const struct pci_device_id *ent)
++{
++ u16 word;
++ struct ichxrom_map_info *info = &ichxrom_map;
++ unsigned long map_size;
++
++ /* For now I just handle the ichx and I assume there
++ * are not a lot of resources up at the top of the address
++ * space. It is possible to handle other devices in the
++ * top 16MB but it is very painful. Also since
++ * you can only really attach a FWH to an ICHX there
++ * a number of simplifications you can make.
++ *
++ * Also you can page firmware hubs if an 8MB window isn't enough
++ * but don't currently handle that case either.
++ */
++
++ info->pdev = pdev;
++
++ /*
++ * Try to reserve the window mem region. If this fails then
++ * it is likely due to the window being "reseved" by the BIOS.
++ */
++ info->window_rsrc.name = MOD_NAME;
++ info->window_rsrc.start = ICHX_FWH_REGION_START;
++ info->window_rsrc.end = ICHX_FWH_REGION_START + ICHX_FWH_REGION_SIZE - 1;
++ info->window_rsrc.flags = IORESOURCE_MEM | IORESOURCE_BUSY;
++ if (request_resource(&iomem_resource, &info->window_rsrc)) {
++ info->window_rsrc.parent = NULL;
++ printk(KERN_ERR MOD_NAME
++ " %s(): Unable to register resource"
++ " 0x%.08lx-0x%.08lx - kernel bug?\n",
++ __func__,
++ info->window_rsrc.start, info->window_rsrc.end);
++ }
++
++ /* Enable writes through the rom window */
++ pci_read_config_word(pdev, BIOS_CNTL, &word);
++ if (!(word & 1) && (word & (1<<1))) {
++ /* The BIOS will generate an error if I enable
++ * this device, so don't even try.
++ */
++ printk(KERN_ERR MOD_NAME ": firmware access control, I can't enable writes\n");
++ goto failed;
++ }
++ pci_write_config_word(pdev, BIOS_CNTL, word | 1);
++
++
++ /* Map the firmware hub into my address space. */
++ /* Does this use too much virtual address space? */
++ info->window_addr = (unsigned long)ioremap(
++ ICHX_FWH_REGION_START, ICHX_FWH_REGION_SIZE);
++ if (!info->window_addr) {
++ printk(KERN_ERR "Failed to ioremap\n");
++ goto failed;
++ }
++
++ /* For now assume the firmware has setup all relevant firmware
++ * windows. We don't have enough information to handle this case
++ * intelligently.
++ */
++
++ /* FIXME select the firmware hub and enable a window to it. */
++
++ info->mtd = 0;
++ info->map.map_priv_1 = info->window_addr;
++
++ map_size = ICHX_FWH_REGION_SIZE;
++ while(!info->mtd && (map_size > 0)) {
++ info->map.size = map_size;
++ info->mtd = do_map_probe("jedec_probe", &ichxrom_map.map);
++ map_size -= 512*1024;
++ }
++ if (!info->mtd) {
++ goto failed;
++ }
++ /* I know I can only be a firmware hub here so put
++ * in the special lock and unlock routines.
++ */
++ info->mtd->lock = ichxrom_lock;
++ info->mtd->unlock = ichxrom_unlock;
++
++ info->mtd->owner = THIS_MODULE;
++ add_mtd_device(info->mtd);
++
++ if (info->window_rsrc.parent) {
++ /*
++ * Registering the MTD device in iomem may not be possible
++ * if there is a BIOS "reserved" and BUSY range. If this
++ * fails then continue anyway.
++ */
++ snprintf(info->mtd_name, MTD_DEV_NAME_LENGTH,
++ "mtd%d", info->mtd->index);
++
++ info->rom_rsrc.name = info->mtd_name;
++ info->rom_rsrc.start = ICHX_FWH_REGION_START
++ + ICHX_FWH_REGION_SIZE - map_size;
++ info->rom_rsrc.end = ICHX_FWH_REGION_START
++ + ICHX_FWH_REGION_SIZE;
++ info->rom_rsrc.flags = IORESOURCE_MEM | IORESOURCE_BUSY;
++ if (request_resource(&info->window_rsrc, &info->rom_rsrc)) {
++ printk(KERN_ERR MOD_NAME
++ ": cannot reserve MTD resource\n");
++ info->rom_rsrc.parent = NULL;
++ }
++ }
++
++ return 0;
++
++ failed:
++ ichxrom_cleanup(info);
++ return -ENODEV;
++}
++
++
++static void __devexit ichxrom_remove_one (struct pci_dev *pdev)
++{
++ struct ichxrom_map_info *info = &ichxrom_map;
++ u16 word;
++
++ del_mtd_device(info->mtd);
++ map_destroy(info->mtd);
++ info->mtd = 0;
++ info->map.map_priv_1 = 0;
++
++ iounmap((void *)(info->window_addr));
++ info->window_addr = 0;
++
++ /* Disable writes through the rom window */
++ pci_read_config_word(pdev, BIOS_CNTL, &word);
++ pci_write_config_word(pdev, BIOS_CNTL, word & ~1);
++
++#if RESERVE_MEM_REGION
++ release_mem_region(ICHX_FWH_REGION_START, ICHX_FWH_REGION_SIZE);
++#endif
++}
++
++static struct pci_device_id ichxrom_pci_tbl[] __devinitdata = {
++ { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0,
++ PCI_ANY_ID, PCI_ANY_ID, },
++ { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0,
++ PCI_ANY_ID, PCI_ANY_ID, },
++ { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0,
++ PCI_ANY_ID, PCI_ANY_ID, },
++ { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0,
++ PCI_ANY_ID, PCI_ANY_ID, },
++ { 0, },
++};
++
++MODULE_DEVICE_TABLE(pci, ichxrom_pci_tbl);
++
++#if 0
++static struct pci_driver ichxrom_driver = {
++ .name = MOD_NAME,
++ .id_table = ichxrom_pci_tbl,
++ .probe = ichxrom_init_one,
++ .remove = ichxrom_remove_one,
++};
++#endif
++
++static struct pci_dev *mydev;
++int __init init_ichxrom(void)
++{
++ struct pci_dev *pdev;
++ struct pci_device_id *id;
++ pdev = 0;
++ for(id = ichxrom_pci_tbl; id->vendor; id++) {
++ pdev = pci_find_device(id->vendor, id->device, 0);
++ if (pdev) {
++ break;
++ }
++ }
++ if (pdev) {
++ mydev = pdev;
++ return ichxrom_init_one(pdev, &ichxrom_pci_tbl[0]);
++ }
++ return -ENXIO;
++#if 0
++ return pci_module_init(&ichxrom_driver);
++#endif
++}
++
++static void __exit cleanup_ichxrom(void)
++{
++ ichxrom_remove_one(mydev);
++}
++
++module_init(init_ichxrom);
++module_exit(cleanup_ichxrom);
++
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("Eric Biederman <ebiederman@lnxi.com>");
++MODULE_DESCRIPTION("MTD map driver for BIOS chips on the ICHX southbridge");
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/impa7.c linux/drivers/mtd/maps/impa7.c
+--- linux-mips-2.4.27/drivers/mtd/maps/impa7.c 2003-02-26 01:53:49.000000000 +0100
++++ linux/drivers/mtd/maps/impa7.c 2004-11-19 10:25:11.920196600 +0100
+@@ -1,5 +1,5 @@
+ /*
+- * $Id: impa7.c,v 1.2 2002/09/05 05:11:24 acurtis Exp $
++ * $Id: impa7.c,v 1.9 2003/06/23 11:47:43 dwmw2 Exp $
+ *
+ * Handle mapping of the NOR flash on implementa A7 boards
+ *
+@@ -13,6 +13,7 @@
+ #include <linux/module.h>
+ #include <linux/types.h>
+ #include <linux/kernel.h>
++#include <linux/init.h>
+ #include <asm/io.h>
+ #include <linux/mtd/mtd.h>
+ #include <linux/mtd/map.h>
+@@ -37,75 +38,17 @@
+
+ static struct mtd_info *impa7_mtd[NUM_FLASHBANKS] = { 0 };
+
+-__u8 impa7_read8(struct map_info *map, unsigned long ofs)
+-{
+- return __raw_readb(map->map_priv_1 + ofs);
+-}
+-
+-__u16 impa7_read16(struct map_info *map, unsigned long ofs)
+-{
+- return __raw_readw(map->map_priv_1 + ofs);
+-}
+-
+-__u32 impa7_read32(struct map_info *map, unsigned long ofs)
+-{
+- return __raw_readl(map->map_priv_1 + ofs);
+-}
+-
+-void impa7_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
+-{
+- memcpy_fromio(to, map->map_priv_1 + from, len);
+-}
+-
+-void impa7_write8(struct map_info *map, __u8 d, unsigned long adr)
+-{
+- __raw_writeb(d, map->map_priv_1 + adr);
+- mb();
+-}
+-
+-void impa7_write16(struct map_info *map, __u16 d, unsigned long adr)
+-{
+- __raw_writew(d, map->map_priv_1 + adr);
+- mb();
+-}
+-
+-void impa7_write32(struct map_info *map, __u32 d, unsigned long adr)
+-{
+- __raw_writel(d, map->map_priv_1 + adr);
+- mb();
+-}
+-
+-void impa7_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
+-{
+- memcpy_toio(map->map_priv_1 + to, from, len);
+-}
+
+ static struct map_info impa7_map[NUM_FLASHBANKS] = {
+ {
+- name: "impA7 NOR Flash Bank #0",
+- size: WINDOW_SIZE0,
+- buswidth: BUSWIDTH,
+- read8: impa7_read8,
+- read16: impa7_read16,
+- read32: impa7_read32,
+- copy_from: impa7_copy_from,
+- write8: impa7_write8,
+- write16: impa7_write16,
+- write32: impa7_write32,
+- copy_to: impa7_copy_to
++ .name = "impA7 NOR Flash Bank #0",
++ .size = WINDOW_SIZE0,
++ .buswidth = BUSWIDTH,
+ },
+ {
+- name: "impA7 NOR Flash Bank #1",
+- size: WINDOW_SIZE1,
+- buswidth: BUSWIDTH,
+- read8: impa7_read8,
+- read16: impa7_read16,
+- read32: impa7_read32,
+- copy_from: impa7_copy_from,
+- write8: impa7_write8,
+- write16: impa7_write16,
+- write32: impa7_write32,
+- copy_to: impa7_copy_to
++ .name = "impA7 NOR Flash Bank #1",
++ .size = WINDOW_SIZE1,
++ .buswidth = BUSWIDTH,
+ },
+ };
+
+@@ -117,24 +60,18 @@
+ static struct mtd_partition static_partitions[] =
+ {
+ {
+- name: "FileSystem",
+- size: 0x800000,
+- offset: 0x00000000
++ .name = "FileSystem",
++ .size = 0x800000,
++ .offset = 0x00000000
+ },
+ };
+
+-#define NB_OF(x) (sizeof (x) / sizeof (x[0]))
++static int mtd_parts_nb[NUM_FLASHBANKS];
++static struct mtd_partition *mtd_parts[NUM_FLASHBANKS];
+
+-#ifdef CONFIG_MTD_CMDLINE_PARTS
+-int parse_cmdline_partitions(struct mtd_info *master,
+- struct mtd_partition **pparts,
+- const char *mtd_id);
+ #endif
+
+-#endif
+-
+-static int mtd_parts_nb = 0;
+-static struct mtd_partition *mtd_parts = 0;
++static const char *probes[] = { "cmdlinepart", NULL };
+
+ int __init init_impa7(void)
+ {
+@@ -146,20 +83,21 @@
+ { WINDOW_ADDR0, WINDOW_SIZE0 },
+ { WINDOW_ADDR1, WINDOW_SIZE1 },
+ };
+- char mtdid[10];
+ int devicesfound = 0;
+
+ for(i=0; i<NUM_FLASHBANKS; i++)
+ {
+ printk(KERN_NOTICE MSG_PREFIX "probing 0x%08lx at 0x%08lx\n",
+ pt[i].size, pt[i].addr);
+- impa7_map[i].map_priv_1 = (unsigned long)
+- ioremap(pt[i].addr, pt[i].size);
+
+- if (!impa7_map[i].map_priv_1) {
++ impa7_map[i].phys = pt[i].addr;
++ impa7_map[i].virt = (unsigned long)
++ ioremap(pt[i].addr, pt[i].size);
++ if (!impa7_map[i].virt) {
+ printk(MSG_PREFIX "failed to ioremap\n");
+ return -EIO;
+ }
++ simple_map_init(&impa7_map[i]);
+
+ impa7_mtd[i] = 0;
+ type = rom_probe_types;
+@@ -167,43 +105,34 @@
+ impa7_mtd[i] = do_map_probe(*type, &impa7_map[i]);
+ }
+
+- if (impa7_mtd[i])
+- {
+- impa7_mtd[i]->module = THIS_MODULE;
+- add_mtd_device(impa7_mtd[i]);
++ if (impa7_mtd[i]) {
++ impa7_mtd[i]->owner = THIS_MODULE;
+ devicesfound++;
+ #ifdef CONFIG_MTD_PARTITIONS
+-#ifdef CONFIG_MTD_CMDLINE_PARTS
+- sprintf(mtdid, MTDID, i);
+- mtd_parts_nb = parse_cmdline_partitions(impa7_mtd[i],
+- &mtd_parts,
+- mtdid);
+- if (mtd_parts_nb > 0)
++ mtd_parts_nb[i] = parse_mtd_partitions(impa7_mtd[i],
++ probes,
++ &mtd_parts[i],
++ 0);
++ if (mtd_parts_nb[i] > 0) {
+ part_type = "command line";
+-#endif
+- if (mtd_parts_nb <= 0)
+- {
+- mtd_parts = static_partitions;
+- mtd_parts_nb = NB_OF(static_partitions);
++ } else {
++ mtd_parts[i] = static_partitions;
++ mtd_parts_nb[i] = ARRAY_SIZE(static_partitions);
+ part_type = "static";
+ }
+- if (mtd_parts_nb <= 0)
+- {
+- printk(KERN_NOTICE MSG_PREFIX
+- "no partition info available\n");
+- }
+- else
+- {
++
+ printk(KERN_NOTICE MSG_PREFIX
+ "using %s partition definition\n",
+ part_type);
+ add_mtd_partitions(impa7_mtd[i],
+- mtd_parts, mtd_parts_nb);
+- }
++ mtd_parts[i], mtd_parts_nb[i]);
++#else
++ add_mtd_device(impa7_mtd[i]);
++
+ #endif
+ }
+ else
+- iounmap((void *)impa7_map[i].map_priv_1);
++ iounmap((void *)impa7_map[i].virt);
+ }
+ return devicesfound == 0 ? -ENXIO : 0;
+ }
+@@ -211,17 +140,16 @@
+ static void __exit cleanup_impa7(void)
+ {
+ int i;
+- for (i=0; i<NUM_FLASHBANKS; i++)
+- {
+- if (impa7_mtd[i])
+- {
++ for (i=0; i<NUM_FLASHBANKS; i++) {
++ if (impa7_mtd[i]) {
++#ifdef CONFIG_MTD_PARTITIONS
++ del_mtd_partitions(impa7_mtd[i]);
++#else
+ del_mtd_device(impa7_mtd[i]);
++#endif
+ map_destroy(impa7_mtd[i]);
+- }
+- if (impa7_map[i].map_priv_1)
+- {
+- iounmap((void *)impa7_map[i].map_priv_1);
+- impa7_map[i].map_priv_1 = 0;
++ iounmap((void *)impa7_map[i].virt);
++ impa7_map[i].virt = 0;
+ }
+ }
+ }
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/integrator-flash-v24.c linux/drivers/mtd/maps/integrator-flash-v24.c
+--- linux-mips-2.4.27/drivers/mtd/maps/integrator-flash-v24.c 1970-01-01 01:00:00.000000000 +0100
++++ linux/drivers/mtd/maps/integrator-flash-v24.c 2004-11-19 10:25:11.921196448 +0100
+@@ -0,0 +1,258 @@
++/*======================================================================
++
++ drivers/mtd/maps/armflash.c: ARM Flash Layout/Partitioning
++
++ Copyright (C) 2000 ARM Limited
++
++ This program is free software; you can redistribute it and/or modify
++ it under the terms of the GNU General Public License as published by
++ the Free Software Foundation; either version 2 of the License, or
++ (at your option) any later version.
++
++ This program is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ GNU General Public License for more details.
++
++ You should have received a copy of the GNU General Public License
++ along with this program; if not, write to the Free Software
++ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
++
++ This is access code for flashes using ARM's flash partitioning
++ standards.
++
++ $Id: integrator-flash-v24.c,v 1.12 2003/10/11 09:43:58 rmk Exp $
++
++======================================================================*/
++
++#include <linux/config.h>
++#include <linux/module.h>
++#include <linux/types.h>
++#include <linux/kernel.h>
++#include <linux/slab.h>
++#include <linux/ioport.h>
++#include <linux/init.h>
++
++#include <linux/mtd/mtd.h>
++#include <linux/mtd/map.h>
++#include <linux/mtd/partitions.h>
++
++#include <asm/hardware.h>
++#include <asm/io.h>
++#include <asm/system.h>
++
++// board specific stuff - sorry, it should be in arch/arm/mach-*.
++#ifdef CONFIG_ARCH_INTEGRATOR
++
++#define FLASH_BASE INTEGRATOR_FLASH_BASE
++#define FLASH_SIZE INTEGRATOR_FLASH_SIZE
++
++#define FLASH_PART_SIZE 0x400000
++
++#define SC_CTRLC (IO_ADDRESS(INTEGRATOR_SC_BASE) + INTEGRATOR_SC_CTRLC_OFFSET)
++#define SC_CTRLS (IO_ADDRESS(INTEGRATOR_SC_BASE) + INTEGRATOR_SC_CTRLS_OFFSET)
++#define EBI_CSR1 (IO_ADDRESS(INTEGRATOR_EBI_BASE) + INTEGRATOR_EBI_CSR1_OFFSET)
++#define EBI_LOCK (IO_ADDRESS(INTEGRATOR_EBI_BASE) + INTEGRATOR_EBI_LOCK_OFFSET)
++
++/*
++ * Initialise the flash access systems:
++ * - Disable VPP
++ * - Assert WP
++ * - Set write enable bit in EBI reg
++ */
++static void armflash_flash_init(void)
++{
++ unsigned int tmp;
++
++ __raw_writel(INTEGRATOR_SC_CTRL_nFLVPPEN | INTEGRATOR_SC_CTRL_nFLWP, SC_CTRLC);
++
++ tmp = __raw_readl(EBI_CSR1) | INTEGRATOR_EBI_WRITE_ENABLE;
++ __raw_writel(tmp, EBI_CSR1);
++
++ if (!(__raw_readl(EBI_CSR1) & INTEGRATOR_EBI_WRITE_ENABLE)) {
++ __raw_writel(0xa05f, EBI_LOCK);
++ __raw_writel(tmp, EBI_CSR1);
++ __raw_writel(0, EBI_LOCK);
++ }
++}
++
++/*
++ * Shutdown the flash access systems:
++ * - Disable VPP
++ * - Assert WP
++ * - Clear write enable bit in EBI reg
++ */
++static void armflash_flash_exit(void)
++{
++ unsigned int tmp;
++
++ __raw_writel(INTEGRATOR_SC_CTRL_nFLVPPEN | INTEGRATOR_SC_CTRL_nFLWP, SC_CTRLC);
++
++ /*
++ * Clear the write enable bit in system controller EBI register.
++ */
++ tmp = __raw_readl(EBI_CSR1) & ~INTEGRATOR_EBI_WRITE_ENABLE;
++ __raw_writel(tmp, EBI_CSR1);
++
++ if (__raw_readl(EBI_CSR1) & INTEGRATOR_EBI_WRITE_ENABLE) {
++ __raw_writel(0xa05f, EBI_LOCK);
++ __raw_writel(tmp, EBI_CSR1);
++ __raw_writel(0, EBI_LOCK);
++ }
++}
++
++static void armflash_flash_wp(int on)
++{
++ unsigned int reg;
++
++ if (on)
++ reg = SC_CTRLC;
++ else
++ reg = SC_CTRLS;
++
++ __raw_writel(INTEGRATOR_SC_CTRL_nFLWP, reg);
++}
++
++static void armflash_set_vpp(struct map_info *map, int on)
++{
++ unsigned int reg;
++
++ if (on)
++ reg = SC_CTRLS;
++ else
++ reg = SC_CTRLC;
++
++ __raw_writel(INTEGRATOR_SC_CTRL_nFLVPPEN, reg);
++}
++#endif
++
++#ifdef CONFIG_ARCH_P720T
++
++#define FLASH_BASE (0x04000000)
++#define FLASH_SIZE (64*1024*1024)
++
++#define FLASH_PART_SIZE (4*1024*1024)
++#define FLASH_BLOCK_SIZE (128*1024)
++
++static void armflash_flash_init(void)
++{
++}
++
++static void armflash_flash_exit(void)
++{
++}
++
++static void armflash_flash_wp(int on)
++{
++}
++
++static void armflash_set_vpp(struct map_info *map, int on)
++{
++}
++#endif
++
++
++static struct map_info armflash_map =
++{
++ .name = "AFS",
++ .set_vpp = armflash_set_vpp,
++ .phys = FLASH_BASE,
++};
++
++static struct mtd_info *mtd;
++static struct mtd_partition *parts;
++static const char *probes[] = { "RedBoot", "afs", NULL };
++
++static int __init armflash_cfi_init(void *base, u_int size)
++{
++ int ret;
++
++ armflash_flash_init();
++ armflash_flash_wp(1);
++
++ /*
++ * look for CFI based flash parts fitted to this board
++ */
++ armflash_map.size = size;
++ armflash_map.buswidth = 4;
++ armflash_map.virt = (unsigned long) base;
++
++ simple_map_init(&armflash_map);
++
++ /*
++ * Also, the CFI layer automatically works out what size
++ * of chips we have, and does the necessary identification
++ * for us automatically.
++ */
++ mtd = do_map_probe("cfi_probe", &armflash_map);
++ if (!mtd)
++ return -ENXIO;
++
++ mtd->owner = THIS_MODULE;
++
++ ret = parse_mtd_partitions(mtd, probes, &parts, (void *)0);
++ if (ret > 0) {
++ ret = add_mtd_partitions(mtd, parts, ret);
++ if (ret)
++ printk(KERN_ERR "mtd partition registration "
++ "failed: %d\n", ret);
++ }
++
++ /*
++ * If we got an error, free all resources.
++ */
++ if (ret < 0) {
++ del_mtd_partitions(mtd);
++ map_destroy(mtd);
++ }
++
++ return ret;
++}
++
++static void armflash_cfi_exit(void)
++{
++ if (mtd) {
++ del_mtd_partitions(mtd);
++ map_destroy(mtd);
++ }
++ if (parts)
++ kfree(parts);
++}
++
++static int __init armflash_init(void)
++{
++ int err = -EBUSY;
++ void *base;
++
++ if (request_mem_region(FLASH_BASE, FLASH_SIZE, "flash") == NULL)
++ goto out;
++
++ base = ioremap(FLASH_BASE, FLASH_SIZE);
++ err = -ENOMEM;
++ if (base == NULL)
++ goto release;
++
++ err = armflash_cfi_init(base, FLASH_SIZE);
++ if (err) {
++ iounmap(base);
++release:
++ release_mem_region(FLASH_BASE, FLASH_SIZE);
++ }
++out:
++ return err;
++}
++
++static void __exit armflash_exit(void)
++{
++ armflash_cfi_exit();
++ iounmap((void *)armflash_map.virt);
++ release_mem_region(FLASH_BASE, FLASH_SIZE);
++ armflash_flash_exit();
++}
++
++module_init(armflash_init);
++module_exit(armflash_exit);
++
++MODULE_AUTHOR("ARM Ltd");
++MODULE_DESCRIPTION("ARM Integrator CFI map driver");
++MODULE_LICENSE("GPL");
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/integrator-flash.c linux/drivers/mtd/maps/integrator-flash.c
+--- linux-mips-2.4.27/drivers/mtd/maps/integrator-flash.c 2002-06-27 00:35:50.000000000 +0200
++++ linux/drivers/mtd/maps/integrator-flash.c 2004-11-19 10:25:11.923196144 +0100
+@@ -1,8 +1,9 @@
+ /*======================================================================
+
+- drivers/mtd/maps/armflash.c: ARM Flash Layout/Partitioning
++ drivers/mtd/maps/integrator-flash.c: ARM Integrator flash map driver
+
+ Copyright (C) 2000 ARM Limited
++ Copyright (C) 2003 Deep Blue Solutions Ltd.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+@@ -21,7 +22,7 @@
+ This is access code for flashes using ARM's flash partitioning
+ standards.
+
+- $Id: integrator-flash.c,v 1.7 2001/11/01 20:55:47 rmk Exp $
++ $Id: integrator-flash.c,v 1.14 2003/10/11 10:00:31 rmk Exp $
+
+ ======================================================================*/
+
+@@ -31,268 +32,181 @@
+ #include <linux/kernel.h>
+ #include <linux/slab.h>
+ #include <linux/ioport.h>
++#include <linux/device.h>
+ #include <linux/init.h>
+
+ #include <linux/mtd/mtd.h>
+ #include <linux/mtd/map.h>
+ #include <linux/mtd/partitions.h>
+
++#include <asm/mach/flash.h>
+ #include <asm/hardware.h>
+ #include <asm/io.h>
+ #include <asm/system.h>
+
+-extern int parse_afs_partitions(struct mtd_info *, struct mtd_partition **);
+-
+-// board specific stuff - sorry, it should be in arch/arm/mach-*.
+-#ifdef CONFIG_ARCH_INTEGRATOR
+-
+-#define FLASH_BASE INTEGRATOR_FLASH_BASE
+-#define FLASH_SIZE INTEGRATOR_FLASH_SIZE
+-
+-#define FLASH_PART_SIZE 0x400000
+-
+-#define SC_CTRLC (IO_ADDRESS(INTEGRATOR_SC_BASE) + INTEGRATOR_SC_CTRLC_OFFSET)
+-#define SC_CTRLS (IO_ADDRESS(INTEGRATOR_SC_BASE) + INTEGRATOR_SC_CTRLS_OFFSET)
+-#define EBI_CSR1 (IO_ADDRESS(INTEGRATOR_EBI_BASE) + INTEGRATOR_EBI_CSR1_OFFSET)
+-#define EBI_LOCK (IO_ADDRESS(INTEGRATOR_EBI_BASE) + INTEGRATOR_EBI_LOCK_OFFSET)
+-
+-/*
+- * Initialise the flash access systems:
+- * - Disable VPP
+- * - Assert WP
+- * - Set write enable bit in EBI reg
+- */
+-static void armflash_flash_init(void)
+-{
+- unsigned int tmp;
+-
+- __raw_writel(INTEGRATOR_SC_CTRL_nFLVPPEN | INTEGRATOR_SC_CTRL_nFLWP, SC_CTRLC);
+-
+- tmp = __raw_readl(EBI_CSR1) | INTEGRATOR_EBI_WRITE_ENABLE;
+- __raw_writel(tmp, EBI_CSR1);
+-
+- if (!(__raw_readl(EBI_CSR1) & INTEGRATOR_EBI_WRITE_ENABLE)) {
+- __raw_writel(0xa05f, EBI_LOCK);
+- __raw_writel(tmp, EBI_CSR1);
+- __raw_writel(0, EBI_LOCK);
+- }
+-}
+-
+-/*
+- * Shutdown the flash access systems:
+- * - Disable VPP
+- * - Assert WP
+- * - Clear write enable bit in EBI reg
+- */
+-static void armflash_flash_exit(void)
+-{
+- unsigned int tmp;
+-
+- __raw_writel(INTEGRATOR_SC_CTRL_nFLVPPEN | INTEGRATOR_SC_CTRL_nFLWP, SC_CTRLC);
+-
+- /*
+- * Clear the write enable bit in system controller EBI register.
+- */
+- tmp = __raw_readl(EBI_CSR1) & ~INTEGRATOR_EBI_WRITE_ENABLE;
+- __raw_writel(tmp, EBI_CSR1);
+-
+- if (__raw_readl(EBI_CSR1) & INTEGRATOR_EBI_WRITE_ENABLE) {
+- __raw_writel(0xa05f, EBI_LOCK);
+- __raw_writel(tmp, EBI_CSR1);
+- __raw_writel(0, EBI_LOCK);
+- }
+-}
+-
+-static void armflash_flash_wp(int on)
+-{
+- unsigned int reg;
+-
+- if (on)
+- reg = SC_CTRLC;
+- else
+- reg = SC_CTRLS;
+-
+- __raw_writel(INTEGRATOR_SC_CTRL_nFLWP, reg);
+-}
+-
+-static void armflash_set_vpp(struct map_info *map, int on)
+-{
+- unsigned int reg;
+-
+- if (on)
+- reg = SC_CTRLS;
+- else
+- reg = SC_CTRLC;
+-
+- __raw_writel(INTEGRATOR_SC_CTRL_nFLVPPEN, reg);
+-}
+-#endif
+-
+ #ifdef CONFIG_ARCH_P720T
+-
+ #define FLASH_BASE (0x04000000)
+ #define FLASH_SIZE (64*1024*1024)
+-
+-#define FLASH_PART_SIZE (4*1024*1024)
+-#define FLASH_BLOCK_SIZE (128*1024)
+-
+-static void armflash_flash_init(void)
+-{
+-}
+-
+-static void armflash_flash_exit(void)
+-{
+-}
+-
+-static void armflash_flash_wp(int on)
+-{
+-}
+-
+-static void armflash_set_vpp(struct map_info *map, int on)
+-{
+-}
+ #endif
+
+-static __u8 armflash_read8(struct map_info *map, unsigned long ofs)
+-{
+- return readb(ofs + map->map_priv_2);
+-}
+-
+-static __u16 armflash_read16(struct map_info *map, unsigned long ofs)
+-{
+- return readw(ofs + map->map_priv_2);
+-}
++struct armflash_info {
++ struct flash_platform_data *plat;
++ struct resource *res;
++ struct mtd_partition *parts;
++ struct mtd_info *mtd;
++ struct map_info map;
++};
+
+-static __u32 armflash_read32(struct map_info *map, unsigned long ofs)
++static void armflash_set_vpp(struct map_info *map, int on)
+ {
+- return readl(ofs + map->map_priv_2);
+-}
++ struct armflash_info *info = container_of(map, struct armflash_info, map);
+
+-static void armflash_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
+-{
+- memcpy(to, (void *) (from + map->map_priv_2), len);
++ if (info->plat && info->plat->set_vpp)
++ info->plat->set_vpp(on);
+ }
+
+-static void armflash_write8(struct map_info *map, __u8 d, unsigned long adr)
+-{
+- writeb(d, adr + map->map_priv_2);
+-}
+-
+-static void armflash_write16(struct map_info *map, __u16 d, unsigned long adr)
+-{
+- writew(d, adr + map->map_priv_2);
+-}
++static const char *probes[] = { "RedBoot", "afs", NULL };
+
+-static void armflash_write32(struct map_info *map, __u32 d, unsigned long adr)
++static int armflash_probe(struct device *_dev)
+ {
+- writel(d, adr + map->map_priv_2);
+-}
++ struct platform_device *dev = to_platform_device(_dev);
++ struct flash_platform_data *plat = dev->dev.platform_data;
++ struct resource *res = dev->resource;
++ unsigned int size = res->end - res->start + 1;
++ struct armflash_info *info;
++ int err;
++ void *base;
+
+-static void armflash_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
+-{
+- memcpy((void *) (to + map->map_priv_2), from, len);
+-}
++ info = kmalloc(sizeof(struct armflash_info), GFP_KERNEL);
++ if (!info) {
++ err = -ENOMEM;
++ goto out;
++ }
+
+-static struct map_info armflash_map =
+-{
+- name: "AFS",
+- read8: armflash_read8,
+- read16: armflash_read16,
+- read32: armflash_read32,
+- copy_from: armflash_copy_from,
+- write8: armflash_write8,
+- write16: armflash_write16,
+- write32: armflash_write32,
+- copy_to: armflash_copy_to,
+- set_vpp: armflash_set_vpp,
+-};
++ memset(info, 0, sizeof(struct armflash_info));
+
+-static struct mtd_info *mtd;
+-static struct mtd_partition *parts;
++ info->plat = plat;
++ if (plat && plat->init) {
++ err = plat->init();
++ if (err)
++ goto no_resource;
++ }
+
+-static int __init armflash_cfi_init(void *base, u_int size)
+-{
+- int ret;
++ info->res = request_mem_region(res->start, size, "armflash");
++ if (!info->res) {
++ err = -EBUSY;
++ goto no_resource;
++ }
+
+- armflash_flash_init();
+- armflash_flash_wp(1);
++ base = ioremap(res->start, size);
++ if (!base) {
++ err = -ENOMEM;
++ goto no_mem;
++ }
+
+ /*
+ * look for CFI based flash parts fitted to this board
+ */
+- armflash_map.size = size;
+- armflash_map.buswidth = 4;
+- armflash_map.map_priv_2 = (unsigned long) base;
++ info->map.size = size;
++ info->map.buswidth = plat->width;
++ info->map.phys = res->start;
++ info->map.virt = (unsigned long) base;
++ info->map.name = dev->dev.bus_id;
++ info->map.set_vpp = armflash_set_vpp;
++
++ simple_map_init(&info->map);
+
+ /*
+ * Also, the CFI layer automatically works out what size
+ * of chips we have, and does the necessary identification
+ * for us automatically.
+ */
+- mtd = do_map_probe("cfi_probe", &armflash_map);
+- if (!mtd)
+- return -ENXIO;
+-
+- mtd->module = THIS_MODULE;
+-
+- ret = parse_afs_partitions(mtd, &parts);
+- if (ret > 0) {
+- ret = add_mtd_partitions(mtd, parts, ret);
+- if (ret)
+- printk(KERN_ERR "mtd partition registration "
+- "failed: %d\n", ret);
++ info->mtd = do_map_probe(plat->map_name, &info->map);
++ if (!info->mtd) {
++ err = -ENXIO;
++ goto no_device;
+ }
+
++ info->mtd->owner = THIS_MODULE;
++
++ err = parse_mtd_partitions(info->mtd, probes, &info->parts, 0);
++ if (err > 0) {
++ err = add_mtd_partitions(info->mtd, info->parts, err);
++ if (err)
++ printk(KERN_ERR
++ "mtd partition registration failed: %d\n", err);
++ }
++
++ if (err == 0)
++ dev_set_drvdata(&dev->dev, info);
++
+ /*
+ * If we got an error, free all resources.
+ */
+- if (ret < 0) {
+- del_mtd_partitions(mtd);
+- map_destroy(mtd);
++ if (err < 0) {
++ if (info->mtd) {
++ del_mtd_partitions(info->mtd);
++ map_destroy(info->mtd);
+ }
++ if (info->parts)
++ kfree(info->parts);
+
+- return ret;
+-}
+-
+-static void armflash_cfi_exit(void)
+-{
+- if (mtd) {
+- del_mtd_partitions(mtd);
+- map_destroy(mtd);
++ no_device:
++ iounmap(base);
++ no_mem:
++ release_mem_region(res->start, size);
++ no_resource:
++ if (plat && plat->exit)
++ plat->exit();
++ kfree(info);
+ }
+- if (parts)
+- kfree(parts);
++ out:
++ return err;
+ }
+
+-static int __init armflash_init(void)
++static int armflash_remove(struct device *_dev)
+ {
+- int err = -EBUSY;
+- void *base;
++ struct platform_device *dev = to_platform_device(_dev);
++ struct armflash_info *info = dev_get_drvdata(&dev->dev);
+
+- if (request_mem_region(FLASH_BASE, FLASH_SIZE, "flash") == NULL)
+- goto out;
++ dev_set_drvdata(&dev->dev, NULL);
+
+- base = ioremap(FLASH_BASE, FLASH_SIZE);
+- err = -ENOMEM;
+- if (base == NULL)
+- goto release;
++ if (info) {
++ if (info->mtd) {
++ del_mtd_partitions(info->mtd);
++ map_destroy(info->mtd);
++ }
++ if (info->parts)
++ kfree(info->parts);
+
+- err = armflash_cfi_init(base, FLASH_SIZE);
+- if (err) {
+- iounmap(base);
+-release:
+- release_mem_region(FLASH_BASE, FLASH_SIZE);
++ iounmap((void *)info->map.virt);
++ release_resource(info->res);
++ kfree(info->res);
++
++ if (info->plat && info->plat->exit)
++ info->plat->exit();
++
++ kfree(info);
+ }
+-out:
+- return err;
++
++ return 0;
++}
++
++static struct device_driver armflash_driver = {
++ .name = "armflash",
++ .bus = &platform_bus_type,
++ .probe = armflash_probe,
++ .remove = armflash_remove,
++};
++
++static int __init armflash_init(void)
++{
++ return driver_register(&armflash_driver);
+ }
+
+ static void __exit armflash_exit(void)
+ {
+- armflash_cfi_exit();
+- iounmap((void *)armflash_map.map_priv_2);
+- release_mem_region(FLASH_BASE, FLASH_SIZE);
+- armflash_flash_exit();
++ driver_unregister(&armflash_driver);
+ }
+
+ module_init(armflash_init);
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/iq80310.c linux/drivers/mtd/maps/iq80310.c
+--- linux-mips-2.4.27/drivers/mtd/maps/iq80310.c 2002-06-27 00:35:50.000000000 +0200
++++ linux/drivers/mtd/maps/iq80310.c 2004-11-19 10:25:11.924195992 +0100
+@@ -1,5 +1,5 @@
+ /*
+- * $Id: iq80310.c,v 1.9 2002/01/01 22:45:02 rmk Exp $
++ * $Id: iq80310.c,v 1.17 2003/06/23 11:48:18 dwmw2 Exp $
+ *
+ * Mapping for the Intel XScale IQ80310 evaluation board
+ *
+@@ -14,6 +14,8 @@
+ #include <linux/module.h>
+ #include <linux/types.h>
+ #include <linux/kernel.h>
++#include <linux/init.h>
++#include <linux/slab.h>
+ #include <asm/io.h>
+ #include <linux/mtd/mtd.h>
+ #include <linux/mtd/map.h>
+@@ -26,127 +28,72 @@
+
+ static struct mtd_info *mymtd;
+
+-static __u8 iq80310_read8(struct map_info *map, unsigned long ofs)
+-{
+- return *(__u8 *)(map->map_priv_1 + ofs);
+-}
+-
+-static __u16 iq80310_read16(struct map_info *map, unsigned long ofs)
+-{
+- return *(__u16 *)(map->map_priv_1 + ofs);
+-}
+-
+-static __u32 iq80310_read32(struct map_info *map, unsigned long ofs)
+-{
+- return *(__u32 *)(map->map_priv_1 + ofs);
+-}
+-
+-static void iq80310_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
+-{
+- memcpy(to, (void *)(map->map_priv_1 + from), len);
+-}
+-
+-static void iq80310_write8(struct map_info *map, __u8 d, unsigned long adr)
+-{
+- *(__u8 *)(map->map_priv_1 + adr) = d;
+-}
+-
+-static void iq80310_write16(struct map_info *map, __u16 d, unsigned long adr)
+-{
+- *(__u16 *)(map->map_priv_1 + adr) = d;
+-}
+-
+-static void iq80310_write32(struct map_info *map, __u32 d, unsigned long adr)
+-{
+- *(__u32 *)(map->map_priv_1 + adr) = d;
+-}
+-
+-static void iq80310_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
+-{
+- memcpy((void *)(map->map_priv_1 + to), from, len);
+-}
+-
+ static struct map_info iq80310_map = {
+- name: "IQ80310 flash",
+- size: WINDOW_SIZE,
+- buswidth: BUSWIDTH,
+- read8: iq80310_read8,
+- read16: iq80310_read16,
+- read32: iq80310_read32,
+- copy_from: iq80310_copy_from,
+- write8: iq80310_write8,
+- write16: iq80310_write16,
+- write32: iq80310_write32,
+- copy_to: iq80310_copy_to
++ .name = "IQ80310 flash",
++ .size = WINDOW_SIZE,
++ .buswidth = BUSWIDTH,
++ .phys = WINDOW_ADDR
+ };
+
+ static struct mtd_partition iq80310_partitions[4] = {
+ {
+- name: "Firmware",
+- size: 0x00080000,
+- offset: 0,
+- mask_flags: MTD_WRITEABLE /* force read-only */
++ .name = "Firmware",
++ .size = 0x00080000,
++ .offset = 0,
++ .mask_flags = MTD_WRITEABLE /* force read-only */
+ },{
+- name: "Kernel",
+- size: 0x000a0000,
+- offset: 0x00080000,
++ .name = "Kernel",
++ .size = 0x000a0000,
++ .offset = 0x00080000,
+ },{
+- name: "Filesystem",
+- size: 0x00600000,
+- offset: 0x00120000
++ .name = "Filesystem",
++ .size = 0x00600000,
++ .offset = 0x00120000
+ },{
+- name: "RedBoot",
+- size: 0x000e0000,
+- offset: 0x00720000,
+- mask_flags: MTD_WRITEABLE
++ .name = "RedBoot",
++ .size = 0x000e0000,
++ .offset = 0x00720000,
++ .mask_flags = MTD_WRITEABLE
+ }
+ };
+
+-#define NB_OF(x) (sizeof(x)/sizeof(x[0]))
+-
+ static struct mtd_info *mymtd;
+ static struct mtd_partition *parsed_parts;
+-
+-extern int parse_redboot_partitions(struct mtd_info *master, struct mtd_partition **pparts);
++static const char *probes[] = { "RedBoot", "cmdlinepart", NULL };
+
+ static int __init init_iq80310(void)
+ {
+ struct mtd_partition *parts;
+ int nb_parts = 0;
+ int parsed_nr_parts = 0;
+- char *part_type = "static";
++ int ret;
+
+- iq80310_map.map_priv_1 = (unsigned long)ioremap(WINDOW_ADDR, WINDOW_SIZE);
+- if (!iq80310_map.map_priv_1) {
++ iq80310_map.virt = (unsigned long)ioremap(WINDOW_ADDR, WINDOW_SIZE);
++ if (!iq80310_map.virt) {
+ printk("Failed to ioremap\n");
+ return -EIO;
+ }
++ simple_map_init(&iq80310_map);
++
+ mymtd = do_map_probe("cfi_probe", &iq80310_map);
+ if (!mymtd) {
+- iounmap((void *)iq80310_map.map_priv_1);
++ iounmap((void *)iq80310_map.virt);
+ return -ENXIO;
+ }
+- mymtd->module = THIS_MODULE;
++ mymtd->owner = THIS_MODULE;
+
+-#ifdef CONFIG_MTD_REDBOOT_PARTS
+- if (parsed_nr_parts == 0) {
+- int ret = parse_redboot_partitions(mymtd, &parsed_parts);
++ ret = parse_mtd_partitions(mymtd, probes, &parsed_parts, 0);
+
+- if (ret > 0) {
+- part_type = "RedBoot";
++ if (ret > 0)
+ parsed_nr_parts = ret;
+- }
+- }
+-#endif
+
+ if (parsed_nr_parts > 0) {
+ parts = parsed_parts;
+ nb_parts = parsed_nr_parts;
+ } else {
+ parts = iq80310_partitions;
+- nb_parts = NB_OF(iq80310_partitions);
++ nb_parts = ARRAY_SIZE(iq80310_partitions);
+ }
+- printk(KERN_NOTICE "Using %s partition definition\n", part_type);
+ add_mtd_partitions(mymtd, parts, nb_parts);
+ return 0;
+ }
+@@ -159,8 +106,8 @@
+ if (parsed_parts)
+ kfree(parsed_parts);
+ }
+- if (iq80310_map.map_priv_1)
+- iounmap((void *)iq80310_map.map_priv_1);
++ if (iq80310_map.virt)
++ iounmap((void *)iq80310_map.virt);
+ }
+
+ module_init(init_iq80310);
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/ixp425.c linux/drivers/mtd/maps/ixp425.c
+--- linux-mips-2.4.27/drivers/mtd/maps/ixp425.c 1970-01-01 01:00:00.000000000 +0100
++++ linux/drivers/mtd/maps/ixp425.c 2004-11-19 10:25:11.925195840 +0100
+@@ -0,0 +1,220 @@
++/*
++ * $Id: ixp425.c,v 1.1 2003/11/26 21:26:09 dsaxena Exp $
++ *
++ * drivers/mtd/maps/ixp425.c
++ *
++ * MTD Map file for IXP425 based systems. Please do not make per-board
++ * map driver as the code will be 90% identical. For now just add
++ * if(machine_is_XXX()) checks to the code. I'll clean this stuff to
++ * use platform_data in the the future so we can get rid of that too.
++ *
++ * Original Author: Intel Corporation
++ * Maintainer: Deepak Saxena <dsaxena@mvista.com>
++ *
++ * Copyright (C) 2002 Intel Corporation
++ * Copyright (C) 2003 MontaVista Software, Inc.
++ *
++ */
++
++#include <linux/module.h>
++#include <linux/types.h>
++#include <linux/init.h>
++#include <linux/kernel.h>
++#include <linux/string.h>
++#include <linux/mtd/mtd.h>
++#include <linux/mtd/map.h>
++#include <linux/mtd/partitions.h>
++#include <linux/ioport.h>
++#include <asm/io.h>
++#include <asm/mach-types.h>
++
++#include <linux/reboot.h>
++
++#define WINDOW_ADDR 0x50000000
++#define BUSWIDTH 2
++
++#ifndef __ARMEB__
++#define BYTE0(h) ((h) & 0xFF)
++#define BYTE1(h) (((h) >> 8) & 0xFF)
++#else
++#define BYTE0(h) (((h) >> 8) & 0xFF)
++#define BYTE1(h) ((h) & 0xFF)
++#endif
++
++static __u16
++ixp425_read16(struct map_info *map, unsigned long ofs)
++{
++ return *(__u16 *) (map->map_priv_1 + ofs);
++}
++
++/*
++ * The IXP425 expansion bus only allows 16-bit wide acceses
++ * when attached to a 16-bit wide device (such as the 28F128J3A),
++ * so we can't just memcpy_fromio().
++ */
++static void
++ixp425_copy_from(struct map_info *map, void *to,
++ unsigned long from, ssize_t len)
++{
++ int i;
++ u8 *dest = (u8 *) to;
++ u16 *src = (u16 *) (map->map_priv_1 + from);
++ u16 data;
++
++ for (i = 0; i < (len / 2); i++) {
++ data = src[i];
++ dest[i * 2] = BYTE0(data);
++ dest[i * 2 + 1] = BYTE1(data);
++ }
++
++ if (len & 1)
++ dest[len - 1] = BYTE0(src[i]);
++}
++
++static void
++ixp425_write16(struct map_info *map, __u16 d, unsigned long adr)
++{
++ *(__u16 *) (map->map_priv_1 + adr) = d;
++}
++
++static struct map_info ixp425_map = {
++ .name = "IXP425 Flash",
++ .buswidth = BUSWIDTH,
++ .read16 = ixp425_read16,
++ .copy_from = ixp425_copy_from,
++ .write16 = ixp425_write16,
++};
++
++/*
++ * Put flash back in read mode so RedBoot can boot properly.
++ */
++int ixp425_mtd_reboot(struct notifier_block *n, unsigned long code, void *p)
++{
++ if (code != SYS_RESTART)
++ return NOTIFY_DONE;
++
++ ixp425_write16(&ixp425_map, 0xff, 0x55 * 0x2);
++ return NOTIFY_DONE;
++}
++
++static struct notifier_block ixp425_mtd_notifier = {
++ notifier_call:ixp425_mtd_reboot,
++ next:NULL,
++ priority:0
++};
++
++static struct mtd_partition *parsed_parts;
++static const char *probes[] = { "RedBoot", "cmdlinepart", NULL };
++
++static struct mtd_partition ixp425_partitions[] = {
++ {
++ .name = "image",
++ .offset = 0x00040000,
++ .size = 0x00400000,
++ }, {
++ .name = "user",
++ .offset = 0x00440000,
++ .size = MTDPART_SIZ_FULL
++ }
++};
++
++#define NB_OF(x) (sizeof(x)/sizeof(x[0]))
++
++static struct mtd_info *ixp425_mtd;
++static struct resource *mtd_resource;
++
++static void
++ixp425_exit(void)
++{
++ if (ixp425_mtd) {
++ del_mtd_partitions(ixp425_mtd);
++ map_destroy(ixp425_mtd);
++ }
++ if (ixp425_map.map_priv_1)
++ iounmap((void *) ixp425_map.map_priv_1);
++ if (mtd_resource)
++ release_mem_region(WINDOW_ADDR, ixp425_map.size);
++
++ if (parsed_parts)
++ kfree(parsed_parts);
++
++ unregister_reboot_notifier(&ixp425_mtd_notifier);
++
++ /* Disable flash write */
++ *IXP425_EXP_CS0 &= ~IXP425_FLASH_WRITABLE;
++
++ if(machine_is_adi_coyote())
++ *IXP425_EXP_CS1 &= ~IXP425_FLASH_WRITABLE;
++}
++
++static int __init
++ixp425_init(void)
++{
++ int res = -1, npart;
++
++ /* Enable flash write */
++ *IXP425_EXP_CS0 |= IXP425_FLASH_WRITABLE;
++
++ /*
++ * Coyote requires CS1 write to be enabled and has 32MB flash.
++ * This will move to the platform init code in 2.6
++ */
++ if(machine_is_adi_coyote()) {
++ *IXP425_EXP_CS1 |= IXP425_FLASH_WRITABLE;
++ ixp425_map.size = 0x02000000;
++ } else
++ ixp425_map.size = 0x01000000;
++
++ ixp425_map.map_priv_1 = 0;
++ mtd_resource =
++ request_mem_region(WINDOW_ADDR, ixp425_map.size, "IXP425 Flash");
++ if (!mtd_resource) {
++ printk(KERN_ERR
++ "ixp425 flash: Could not request mem region.\n");
++ res = -ENOMEM;
++ goto Error;
++ }
++
++ ixp425_map.map_priv_1 =
++ (unsigned long) ioremap(WINDOW_ADDR, ixp425_map.size);
++ if (!ixp425_map.map_priv_1) {
++ printk("ixp425 Flash: Failed to map IO region. (ioremap)\n");
++ res = -EIO;
++ goto Error;
++ }
++
++ ixp425_mtd = do_map_probe("cfi_probe", &ixp425_map);
++ if (!ixp425_mtd) {
++ res = -ENXIO;
++ goto Error;
++ }
++ ixp425_mtd->owner = THIS_MODULE;
++
++ /* Try to parse RedBoot partitions */
++ npart = parse_mtd_partitions(ixp425_mtd, probes, &parsed_parts, 0);
++ if (npart > 0)
++ res = add_mtd_partitions(ixp425_mtd, parsed_parts, npart);
++ else {
++ printk("IXP425 Flash: Using static MTD partitions.\n");
++ res = add_mtd_partitions(ixp425_mtd, ixp425_partitions,
++ NB_OF(ixp425_partitions));
++ }
++
++ if (res)
++ goto Error;
++
++ register_reboot_notifier(&ixp425_mtd_notifier);
++
++ return res;
++
++Error:
++ ixp425_exit();
++ return res;
++}
++
++module_init(ixp425_init);
++module_exit(ixp425_exit);
++
++MODULE_LICENSE("GPL");
++MODULE_DESCRIPTION("MTD map driver for ixp425 evaluation board");
++MODULE_AUTHOR("Deepak Saxena");
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/l440gx.c linux/drivers/mtd/maps/l440gx.c
+--- linux-mips-2.4.27/drivers/mtd/maps/l440gx.c 2002-06-27 00:35:50.000000000 +0200
++++ linux/drivers/mtd/maps/l440gx.c 2004-11-19 10:25:11.927195536 +0100
+@@ -1,5 +1,5 @@
+ /*
+- * $Id: l440gx.c,v 1.8 2002/01/10 20:27:40 eric Exp $
++ * $Id: l440gx.c,v 1.12 2003/05/21 12:45:19 dwmw2 Exp $
+ *
+ * BIOS Flash chip on Intel 440GX board.
+ *
+@@ -9,6 +9,7 @@
+ #include <linux/module.h>
+ #include <linux/pci.h>
+ #include <linux/kernel.h>
++#include <linux/init.h>
+ #include <asm/io.h>
+ #include <linux/mtd/mtd.h>
+ #include <linux/mtd/map.h>
+@@ -27,48 +28,6 @@
+
+ static struct mtd_info *mymtd;
+
+-__u8 l440gx_read8(struct map_info *map, unsigned long ofs)
+-{
+- return __raw_readb(map->map_priv_1 + ofs);
+-}
+-
+-__u16 l440gx_read16(struct map_info *map, unsigned long ofs)
+-{
+- return __raw_readw(map->map_priv_1 + ofs);
+-}
+-
+-__u32 l440gx_read32(struct map_info *map, unsigned long ofs)
+-{
+- return __raw_readl(map->map_priv_1 + ofs);
+-}
+-
+-void l440gx_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
+-{
+- memcpy_fromio(to, map->map_priv_1 + from, len);
+-}
+-
+-void l440gx_write8(struct map_info *map, __u8 d, unsigned long adr)
+-{
+- __raw_writeb(d, map->map_priv_1 + adr);
+- mb();
+-}
+-
+-void l440gx_write16(struct map_info *map, __u16 d, unsigned long adr)
+-{
+- __raw_writew(d, map->map_priv_1 + adr);
+- mb();
+-}
+-
+-void l440gx_write32(struct map_info *map, __u32 d, unsigned long adr)
+-{
+- __raw_writel(d, map->map_priv_1 + adr);
+- mb();
+-}
+-
+-void l440gx_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
+-{
+- memcpy_toio(map->map_priv_1 + to, from, len);
+-}
+
+ /* Is this really the vpp port? */
+ void l440gx_set_vpp(struct map_info *map, int vpp)
+@@ -85,22 +44,15 @@
+ }
+
+ struct map_info l440gx_map = {
+- name: "L440GX BIOS",
+- size: WINDOW_SIZE,
+- buswidth: BUSWIDTH,
+- read8: l440gx_read8,
+- read16: l440gx_read16,
+- read32: l440gx_read32,
+- copy_from: l440gx_copy_from,
+- write8: l440gx_write8,
+- write16: l440gx_write16,
+- write32: l440gx_write32,
+- copy_to: l440gx_copy_to,
++ .name = "L440GX BIOS",
++ .size = WINDOW_SIZE,
++ .buswidth = BUSWIDTH,
++ .phys = WINDOW_ADDR,
+ #if 0
+ /* FIXME verify that this is the
+ * appripriate code for vpp enable/disable
+ */
+- set_vpp: l440gx_set_vpp
++ .set_vpp = l440gx_set_vpp
+ #endif
+ };
+
+@@ -113,7 +65,6 @@
+ dev = pci_find_device(PCI_VENDOR_ID_INTEL,
+ PCI_DEVICE_ID_INTEL_82371AB_0, NULL);
+
+-
+ pm_dev = pci_find_device(PCI_VENDOR_ID_INTEL,
+ PCI_DEVICE_ID_INTEL_82371AB_3, NULL);
+
+@@ -122,15 +73,14 @@
+ return -ENODEV;
+ }
+
++ l440gx_map.virt = (unsigned long)ioremap_nocache(WINDOW_ADDR, WINDOW_SIZE);
+
+- l440gx_map.map_priv_1 = (unsigned long)ioremap_nocache(WINDOW_ADDR, WINDOW_SIZE);
+-
+- if (!l440gx_map.map_priv_1) {
++ if (!l440gx_map.virt) {
+ printk(KERN_WARNING "Failed to ioremap L440GX flash region\n");
+ return -ENOMEM;
+ }
+-
+- printk(KERN_NOTICE "window_addr = 0x%08lx\n", (unsigned long)l440gx_map.map_priv_1);
++ simple_map_init(&l440gx_map);
++ printk(KERN_NOTICE "window_addr = 0x%08lx\n", (unsigned long)l440gx_map.virt);
+
+ /* Setup the pm iobase resource
+ * This code should move into some kind of generic bridge
+@@ -153,7 +103,7 @@
+ /* Allocate the resource region */
+ if (pci_assign_resource(pm_dev, PIIXE_IOBASE_RESOURCE) != 0) {
+ printk(KERN_WARNING "Could not allocate pm iobase resource\n");
+- iounmap((void *)l440gx_map.map_priv_1);
++ iounmap((void *)l440gx_map.virt);
+ return -ENXIO;
+ }
+ }
+@@ -181,13 +131,13 @@
+ mymtd = do_map_probe("map_rom", &l440gx_map);
+ }
+ if (mymtd) {
+- mymtd->module = THIS_MODULE;
++ mymtd->owner = THIS_MODULE;
+
+ add_mtd_device(mymtd);
+ return 0;
+ }
+
+- iounmap((void *)l440gx_map.map_priv_1);
++ iounmap((void *)l440gx_map.virt);
+ return -ENXIO;
+ }
+
+@@ -196,7 +146,7 @@
+ del_mtd_device(mymtd);
+ map_destroy(mymtd);
+
+- iounmap((void *)l440gx_map.map_priv_1);
++ iounmap((void *)l440gx_map.virt);
+ }
+
+ module_init(init_l440gx);
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/lasat.c linux/drivers/mtd/maps/lasat.c
+--- linux-mips-2.4.27/drivers/mtd/maps/lasat.c 2003-08-18 04:59:02.000000000 +0200
++++ linux/drivers/mtd/maps/lasat.c 2004-11-19 10:25:11.928195384 +0100
+@@ -1,11 +1,20 @@
+ /*
+- * Flash device on lasat 100 and 200 boards
++ * Flash device on Lasat 100 and 200 boards
++ *
++ * (C) 2002 Brian Murphy <brian@murphy.dk>
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License version
++ * 2 as published by the Free Software Foundation.
++ *
++ * $Id: lasat.c,v 1.6 2003/09/02 16:36:40 brm Exp $
+ *
+ */
+
+ #include <linux/module.h>
+ #include <linux/types.h>
+ #include <linux/kernel.h>
++#include <linux/init.h>
+ #include <asm/io.h>
+ #include <linux/mtd/mtd.h>
+ #include <linux/mtd/map.h>
+@@ -13,123 +22,80 @@
+ #include <linux/config.h>
+ #include <asm/lasat/lasat.h>
+
+-static struct mtd_info *mymtd;
+-
+-static __u8 sp_read8(struct map_info *map, unsigned long ofs)
+-{
+- return __raw_readb(map->map_priv_1 + ofs);
+-}
+-
+-static __u16 sp_read16(struct map_info *map, unsigned long ofs)
+-{
+- return __raw_readw(map->map_priv_1 + ofs);
+-}
+-
+-static __u32 sp_read32(struct map_info *map, unsigned long ofs)
+-{
+- return __raw_readl(map->map_priv_1 + ofs);
+-}
+-
+-static void sp_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
+-{
+- memcpy_fromio(to, map->map_priv_1 + from, len);
+-}
++static struct mtd_info *lasat_mtd;
+
+-static void sp_write8(struct map_info *map, __u8 d, unsigned long adr)
+-{
+- __raw_writeb(d, map->map_priv_1 + adr);
+- mb();
+-}
+-
+-static void sp_write16(struct map_info *map, __u16 d, unsigned long adr)
+-{
+- __raw_writew(d, map->map_priv_1 + adr);
+- mb();
+-}
+-
+-static void sp_write32(struct map_info *map, __u32 d, unsigned long adr)
+-{
+- __raw_writel(d, map->map_priv_1 + adr);
+- mb();
+-}
++static struct mtd_partition partition_info[LASAT_MTD_LAST];
++static char *lasat_mtd_partnames[] = {"Bootloader", "Service", "Normal", "Filesystem", "Config"};
+
+-static void sp_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
++static void lasat_set_vpp(struct map_info *map, int vpp)
+ {
+- memcpy_toio(map->map_priv_1 + to, from, len);
++ if (vpp)
++ *lasat_misc->flash_wp_reg |= 1 << lasat_misc->flash_wp_bit;
++ else
++ *lasat_misc->flash_wp_reg &= ~(1 << lasat_misc->flash_wp_bit);
+ }
+
+-static struct map_info sp_map = {
+- name: "SP flash",
+- buswidth: 4,
+- read8: sp_read8,
+- read16: sp_read16,
+- read32: sp_read32,
+- copy_from: sp_copy_from,
+- write8: sp_write8,
+- write16: sp_write16,
+- write32: sp_write32,
+- copy_to: sp_copy_to
++static struct map_info lasat_map = {
++ .name = "LASAT flash",
++ .buswidth = 4,
++ .set_vpp = lasat_set_vpp
+ };
+
+-static struct mtd_partition partition_info[LASAT_MTD_LAST];
+-static char *lasat_mtd_partnames[] = {"Bootloader", "Service", "Normal", "Config", "Filesystem"};
+-
+-static int __init init_sp(void)
++static int __init init_lasat(void)
+ {
+ int i;
+- int nparts = 0;
+- /* this does not play well with the old flash code which
+- * protects and uprotects the flash when necessary */
++ /* since we use AMD chips and set_vpp is not implimented
++ * for these (yet) we still have to permanently enable flash write */
+ printk(KERN_NOTICE "Unprotecting flash\n");
+- *lasat_misc->flash_wp_reg |= 1 << lasat_misc->flash_wp_bit;
++ ENABLE_VPP((&lasat_map));
+
+- sp_map.map_priv_1 = ioremap_nocache(
+- lasat_flash_partition_start(LASAT_MTD_BOOTLOADER),
+- lasat_board_info.li_flash_size);
+- sp_map.size = lasat_board_info.li_flash_size;
++ lasat_map.phys = lasat_flash_partition_start(LASAT_MTD_BOOTLOADER);
++ lasat_map.virt = (unsigned long)ioremap_nocache(
++ lasat_map.phys, lasat_board_info.li_flash_size);
++ lasat_map.size = lasat_board_info.li_flash_size;
+
+- printk(KERN_NOTICE "sp flash device: %lx at %lx\n",
+- sp_map.size, sp_map.map_priv_1);
++ simple_map_init(&lasat_map);
+
+ for (i=0; i < LASAT_MTD_LAST; i++)
+ partition_info[i].name = lasat_mtd_partnames[i];
+
+- mymtd = do_map_probe("cfi_probe", &sp_map);
+- if (mymtd) {
++ lasat_mtd = do_map_probe("cfi_probe", &lasat_map);
++
++ if (!lasat_mtd)
++ lasat_mtd = do_map_probe("jedec_probe", &lasat_map);
++
++ if (lasat_mtd) {
+ u32 size, offset = 0;
+
+- mymtd->module = THIS_MODULE;
++ lasat_mtd->owner = THIS_MODULE;
+
+ for (i=0; i < LASAT_MTD_LAST; i++) {
+ size = lasat_flash_partition_size(i);
+- if (size != 0) {
+- nparts++;
+ partition_info[i].size = size;
+ partition_info[i].offset = offset;
+ offset += size;
+ }
+- }
+
+- add_mtd_partitions( mymtd, partition_info, nparts );
++ add_mtd_partitions( lasat_mtd, partition_info, LASAT_MTD_LAST );
+ return 0;
+ }
+
+ return -ENXIO;
+ }
+
+-static void __exit cleanup_sp(void)
++static void __exit cleanup_lasat(void)
+ {
+- if (mymtd) {
+- del_mtd_partitions(mymtd);
+- map_destroy(mymtd);
++ if (lasat_mtd) {
++ del_mtd_partitions(lasat_mtd);
++ map_destroy(lasat_mtd);
+ }
+- if (sp_map.map_priv_1) {
+- sp_map.map_priv_1 = 0;
++ if (lasat_map.virt) {
++ lasat_map.virt = 0;
+ }
+ }
+
+-module_init(init_sp);
+-module_exit(cleanup_sp);
++module_init(init_lasat);
++module_exit(cleanup_lasat);
+
+ MODULE_LICENSE("GPL");
+ MODULE_AUTHOR("Brian Murphy <brian@murphy.dk>");
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/lubbock-flash.c linux/drivers/mtd/maps/lubbock-flash.c
+--- linux-mips-2.4.27/drivers/mtd/maps/lubbock-flash.c 1970-01-01 01:00:00.000000000 +0100
++++ linux/drivers/mtd/maps/lubbock-flash.c 2004-11-19 10:25:11.930195080 +0100
+@@ -0,0 +1,151 @@
++/*
++ * $Id: lubbock-flash.c,v 1.9 2003/06/23 11:48:18 dwmw2 Exp $
++ *
++ * Map driver for the Lubbock developer platform.
++ *
++ * Author: Nicolas Pitre
++ * Copyright: (C) 2001 MontaVista Software Inc.
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation.
++ */
++
++#include <linux/module.h>
++#include <linux/types.h>
++#include <linux/kernel.h>
++#include <linux/init.h>
++#include <asm/io.h>
++#include <linux/mtd/mtd.h>
++#include <linux/mtd/map.h>
++#include <linux/mtd/partitions.h>
++#include <asm/hardware.h>
++
++
++#define ROM_ADDR 0x00000000
++#define FLASH_ADDR 0x04000000
++
++#define WINDOW_SIZE 64*1024*1024
++
++static struct map_info lubbock_maps[2] = { {
++ .size = WINDOW_SIZE,
++ .phys = 0x00000000,
++}, {
++ .size = WINDOW_SIZE,
++ .phys = 0x04000000,
++} };
++
++static struct mtd_partition lubbock_partitions[] = {
++ {
++ .name = "Bootloader",
++ .size = 0x00040000,
++ .offset = 0,
++ .mask_flags = MTD_WRITEABLE /* force read-only */
++ },{
++ .name = "Kernel",
++ .size = 0x00100000,
++ .offset = 0x00040000,
++ },{
++ .name = "Filesystem",
++ .size = MTDPART_SIZ_FULL,
++ .offset = 0x00140000
++ }
++};
++
++static struct mtd_info *mymtds[2];
++static struct mtd_partition *parsed_parts[2];
++static int nr_parsed_parts[2];
++
++static const char *probes[] = { "RedBoot", "cmdlinepart", NULL };
++
++static int __init init_lubbock(void)
++{
++ int flashboot = (CONF_SWITCHES & 1);
++ int ret = 0, i;
++
++ lubbock_maps[0].buswidth = lubbock_maps[1].buswidth =
++ (BOOT_DEF & 1) ? 2 : 4;
++
++ /* Compensate for the nROMBT switch which swaps the flash banks */
++ printk(KERN_NOTICE "Lubbock configured to boot from %s (bank %d)\n",
++ flashboot?"Flash":"ROM", flashboot);
++
++ lubbock_maps[flashboot^1].name = "Lubbock Application Flash";
++ lubbock_maps[flashboot].name = "Lubbock Boot ROM";
++
++ for (i = 0; i < 2; i++) {
++ lubbock_maps[i].virt = (unsigned long)__ioremap(lubbock_maps[i].phys, WINDOW_SIZE, 0);
++ if (!lubbock_maps[i].virt) {
++ printk(KERN_WARNING "Failed to ioremap %s\n", lubbock_maps[i].name);
++ if (!ret)
++ ret = -ENOMEM;
++ continue;
++ }
++ simple_map_init(&lubbock_maps[i]);
++
++ printk(KERN_NOTICE "Probing %s at physical address 0x%08lx (%d-bit buswidth)\n",
++ lubbock_maps[i].name, lubbock_maps[i].phys,
++ lubbock_maps[i].buswidth * 8);
++
++ mymtds[i] = do_map_probe("cfi_probe", &lubbock_maps[i]);
++
++ if (!mymtds[i]) {
++ iounmap((void *)lubbock_maps[i].virt);
++ if (!ret)
++ ret = -EIO;
++ continue;
++ }
++ mymtds[i]->owner = THIS_MODULE;
++
++ int ret = parse_mtd_partitions(mymtds[i], probes,
++ &parsed_parts[i], 0);
++
++ if (ret > 0)
++ nr_parsed_parts[i] = ret;
++ }
++
++ if (!mymtds[0] && !mymtds[1])
++ return ret;
++
++ for (i = 0; i < 2; i++) {
++ if (!mymtds[i]) {
++ printk(KERN_WARNING "%s is absent. Skipping\n", lubbock_maps[i].name);
++ } else if (nr_parsed_parts[i]) {
++ add_mtd_partitions(mymtds[i], parsed_parts[i], nr_parsed_parts[i]);
++ } else if (!i) {
++ printk("Using static partitions on %s\n", lubbock_maps[i].name);
++ add_mtd_partitions(mymtds[i], lubbock_partitions, ARRAY_SIZE(lubbock_partitions));
++ } else {
++ printk("Registering %s as whole device\n", lubbock_maps[i].name);
++ add_mtd_device(mymtds[i]);
++ }
++ }
++ return 0;
++}
++
++static void __exit cleanup_lubbock(void)
++{
++ int i;
++ for (i = 0; i < 2; i++) {
++ if (!mymtds[i])
++ continue;
++
++ if (nr_parsed_parts[i] || !i)
++ del_mtd_partitions(mymtds[i]);
++ else
++ del_mtd_device(mymtds[i]);
++
++ map_destroy(mymtds[i]);
++ iounmap((void *)lubbock_maps[i].virt);
++
++ if (parsed_parts[i])
++ kfree(parsed_parts[i]);
++ }
++}
++
++module_init(init_lubbock);
++module_exit(cleanup_lubbock);
++
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("Nicolas Pitre <nico@cam.org>");
++MODULE_DESCRIPTION("MTD map driver for Intel Lubbock");
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/map_funcs.c linux/drivers/mtd/maps/map_funcs.c
+--- linux-mips-2.4.27/drivers/mtd/maps/map_funcs.c 1970-01-01 01:00:00.000000000 +0100
++++ linux/drivers/mtd/maps/map_funcs.c 2004-11-19 10:25:11.931194928 +0100
+@@ -0,0 +1,96 @@
++/*
++ * $Id: map_funcs.c,v 1.3 2003/11/14 19:50:04 thayne Exp $
++ *
++ * Out-of-line map I/O functions for simple maps when CONFIG_COMPLEX_MAPPINGS
++ * is enabled.
++ */
++
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/config.h>
++#include <linux/types.h>
++#include <linux/string.h>
++#include <asm/io.h>
++
++#include <linux/mtd/map.h>
++
++static u8 simple_map_read8(struct map_info *map, unsigned long ofs)
++{
++ return __raw_readb(map->virt + ofs);
++}
++
++static u16 simple_map_read16(struct map_info *map, unsigned long ofs)
++{
++ return __raw_readw(map->virt + ofs);
++}
++
++static u32 simple_map_read32(struct map_info *map, unsigned long ofs)
++{
++ return __raw_readl(map->virt + ofs);
++}
++
++static u64 simple_map_read64(struct map_info *map, unsigned long ofs)
++{
++#ifndef CONFIG_MTD_CFI_B8 /* 64-bit mappings */
++ BUG();
++ return 0;
++#else
++ return __raw_readll(map->virt + ofs);
++#endif
++}
++
++static void simple_map_write8(struct map_info *map, u8 datum, unsigned long ofs)
++{
++ __raw_writeb(datum, map->virt + ofs);
++ mb();
++}
++
++static void simple_map_write16(struct map_info *map, u16 datum, unsigned long ofs)
++{
++ __raw_writew(datum, map->virt + ofs);
++ mb();
++}
++
++static void simple_map_write32(struct map_info *map, u32 datum, unsigned long ofs)
++{
++ __raw_writel(datum, map->virt + ofs);
++ mb();
++}
++
++static void simple_map_write64(struct map_info *map, u64 datum, unsigned long ofs)
++{
++#ifndef CONFIG_MTD_CFI_B8 /* 64-bit mappings */
++ BUG();
++#else
++ __raw_writell(datum, map->virt + ofs);
++ mb();
++#endif /* CFI_B8 */
++}
++
++static void simple_map_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
++{
++ memcpy_fromio(to, map->virt + from, len);
++}
++
++static void simple_map_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
++{
++ memcpy_toio(map->virt + to, from, len);
++}
++
++void simple_map_init(struct map_info *map)
++{
++ map->read8 = simple_map_read8;
++ map->read16 = simple_map_read16;
++ map->read32 = simple_map_read32;
++ map->read64 = simple_map_read64;
++ map->write8 = simple_map_write8;
++ map->write16 = simple_map_write16;
++ map->write32 = simple_map_write32;
++ map->write64 = simple_map_write64;
++ map->copy_from = simple_map_copy_from;
++ map->copy_to = simple_map_copy_to;
++}
++
++EXPORT_SYMBOL(simple_map_init);
++
++MODULE_LICENSE("GPL");
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/mbx860.c linux/drivers/mtd/maps/mbx860.c
+--- linux-mips-2.4.27/drivers/mtd/maps/mbx860.c 2002-06-27 00:35:50.000000000 +0200
++++ linux/drivers/mtd/maps/mbx860.c 2004-11-19 10:25:11.933194624 +0100
+@@ -1,5 +1,5 @@
+ /*
+- * $Id: mbx860.c,v 1.1 2001/11/18 19:43:09 dwmw2 Exp $
++ * $Id: mbx860.c,v 1.5 2003/05/21 12:45:19 dwmw2 Exp $
+ *
+ * Handle mapping of the flash on MBX860 boards
+ *
+@@ -15,6 +15,7 @@
+ #include <linux/module.h>
+ #include <linux/types.h>
+ #include <linux/kernel.h>
++#include <linux/init.h>
+ #include <asm/io.h>
+ #include <linux/mtd/mtd.h>
+ #include <linux/mtd/map.h>
+@@ -36,91 +37,46 @@
+ * single flash device into. If the size if zero we use up to the end of the
+ * device. */
+ static struct mtd_partition partition_info[]={
+- { name: "MBX flash BOOT partition",
+- offset: 0,
+- size: BOOT_PARTITION_SIZE_KiB*1024 },
+- { name: "MBX flash DATA partition",
+- offset: BOOT_PARTITION_SIZE_KiB*1024,
+- size: (KERNEL_PARTITION_SIZE_KiB)*1024 },
+- { name: "MBX flash APPLICATION partition",
+- offset: (BOOT_PARTITION_SIZE_KiB+KERNEL_PARTITION_SIZE_KiB)*1024 }
++ { .name = "MBX flash BOOT partition",
++ .offset = 0,
++ .size = BOOT_PARTITION_SIZE_KiB*1024 },
++ { .name = "MBX flash DATA partition",
++ .offset = BOOT_PARTITION_SIZE_KiB*1024,
++ .size = (KERNEL_PARTITION_SIZE_KiB)*1024 },
++ { .name = "MBX flash APPLICATION partition",
++ .offset = (BOOT_PARTITION_SIZE_KiB+KERNEL_PARTITION_SIZE_KiB)*1024 }
+ };
+
+
+ static struct mtd_info *mymtd;
+
+-__u8 mbx_read8(struct map_info *map, unsigned long ofs)
+-{
+- return readb(map->map_priv_1 + ofs);
+-}
+-
+-__u16 mbx_read16(struct map_info *map, unsigned long ofs)
+-{
+- return readw(map->map_priv_1 + ofs);
+-}
+-
+-__u32 mbx_read32(struct map_info *map, unsigned long ofs)
+-{
+- return readl(map->map_priv_1 + ofs);
+-}
+-
+-void mbx_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
+-{
+- memcpy_fromio(to, (void *)(map->map_priv_1 + from), len);
+-}
+-
+-void mbx_write8(struct map_info *map, __u8 d, unsigned long adr)
+-{
+- writeb(d, map->map_priv_1 + adr);
+-}
+-
+-void mbx_write16(struct map_info *map, __u16 d, unsigned long adr)
+-{
+- writew(d, map->map_priv_1 + adr);
+-}
+-
+-void mbx_write32(struct map_info *map, __u32 d, unsigned long adr)
+-{
+- writel(d, map->map_priv_1 + adr);
+-}
+-
+-void mbx_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
+-{
+- memcpy_toio((void *)(map->map_priv_1 + to), from, len);
+-}
+-
+ struct map_info mbx_map = {
+- name: "MBX flash",
+- size: WINDOW_SIZE,
+- buswidth: 4,
+- read8: mbx_read8,
+- read16: mbx_read16,
+- read32: mbx_read32,
+- copy_from: mbx_copy_from,
+- write8: mbx_write8,
+- write16: mbx_write16,
+- write32: mbx_write32,
+- copy_to: mbx_copy_to
++ .name = "MBX flash",
++ .size = WINDOW_SIZE,
++ .phys = WINDOW_ADDR,
++ .buswidth = 4,
+ };
+
+ int __init init_mbx(void)
+ {
+- printk(KERN_NOTICE "Motorola MBX flash device: %x at %x\n", WINDOW_SIZE*4, WINDOW_ADDR);
+- mbx_map.map_priv_1 = (unsigned long)ioremap(WINDOW_ADDR, WINDOW_SIZE * 4);
++ printk(KERN_NOTICE "Motorola MBX flash device: 0x%x at 0x%x\n", WINDOW_SIZE*4, WINDOW_ADDR);
++ mbx_map.virt = (unsigned long)ioremap(WINDOW_ADDR, WINDOW_SIZE * 4);
+
+- if (!mbx_map.map_priv_1) {
++ if (!mbx_map.virt) {
+ printk("Failed to ioremap\n");
+ return -EIO;
+ }
++ simple_map_init(&mbx_map);
++
+ mymtd = do_map_probe("jedec_probe", &mbx_map);
+ if (mymtd) {
+- mymtd->module = THIS_MODULE;
++ mymtd->owner = THIS_MODULE;
+ add_mtd_device(mymtd);
+ add_mtd_partitions(mymtd, partition_info, NUM_PARTITIONS);
+ return 0;
+ }
+
+- iounmap((void *)mbx_map.map_priv_1);
++ iounmap((void *)mbx_map.virt);
+ return -ENXIO;
+ }
+
+@@ -130,9 +86,9 @@
+ del_mtd_device(mymtd);
+ map_destroy(mymtd);
+ }
+- if (mbx_map.map_priv_1) {
+- iounmap((void *)mbx_map.map_priv_1);
+- mbx_map.map_priv_1 = 0;
++ if (mbx_map.virt) {
++ iounmap((void *)mbx_map.virt);
++ mbx_map.virt = 0;
+ }
+ }
+
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/mpc1211.c linux/drivers/mtd/maps/mpc1211.c
+--- linux-mips-2.4.27/drivers/mtd/maps/mpc1211.c 1970-01-01 01:00:00.000000000 +0100
++++ linux/drivers/mtd/maps/mpc1211.c 2004-11-19 10:25:11.934194472 +0100
+@@ -0,0 +1,79 @@
++/*
++ * Flash on MPC-1211
++ *
++ * (C) 2002 Interface, Saito.K & Jeanne
++ *
++ * GPL'd
++ */
++
++#include <linux/module.h>
++#include <linux/types.h>
++#include <linux/kernel.h>
++#include <asm/io.h>
++#include <linux/mtd/mtd.h>
++#include <linux/mtd/map.h>
++#include <linux/mtd/partitions.h>
++#include <linux/config.h>
++
++static struct mtd_info *flash_mtd;
++static struct mtd_partition *parsed_parts;
++
++struct map_info mpc1211_flash_map = {
++ .name = "MPC-1211 FLASH",
++ .size = 0x80000,
++ .buswidth = 1,
++};
++
++static struct mtd_partition mpc1211_partitions[] = {
++ {
++ .name = "IPL & ETH-BOOT",
++ .offset = 0x00000000,
++ .size = 0x10000,
++ },
++ {
++ .name = "Flash FS",
++ .offset = 0x00010000,
++ .size = MTDPART_SIZ_FULL,
++ }
++};
++
++static int __init init_mpc1211_maps(void)
++{
++ int nr_parts;
++
++ mpc1211_flash_map.phys = 0;
++ mpc1211_flash_map.virt = P2SEGADDR(0);
++
++ simple_map_init(&mpc1211_flash_map);
++
++ printk(KERN_NOTICE "Probing for flash chips at 0x00000000:\n");
++ flash_mtd = do_map_probe("jedec_probe", &mpc1211_flash_map);
++ if (!flash_mtd) {
++ printk(KERN_NOTICE "Flash chips not detected at either possible location.\n");
++ return -ENXIO;
++ }
++ printk(KERN_NOTICE "MPC-1211: Flash at 0x%08lx\n", mpc1211_flash_map.virt & 0x1fffffff);
++ flash_mtd->module = THIS_MODULE;
++
++ parsed_parts = mpc1211_partitions;
++ nr_parts = ARRAY_SIZE(mpc1211_partitions);
++
++ add_mtd_partitions(flash_mtd, parsed_parts, nr_parts);
++ return 0;
++}
++
++static void __exit cleanup_mpc1211_maps(void)
++{
++ if (parsed_parts)
++ del_mtd_partitions(flash_mtd);
++ else
++ del_mtd_device(flash_mtd);
++ map_destroy(flash_mtd);
++}
++
++module_init(init_mpc1211_maps);
++module_exit(cleanup_mpc1211_maps);
++
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("Saito.K & Jeanne <ksaito@interface.co.jp>");
++MODULE_DESCRIPTION("MTD map driver for MPC-1211 boards. Interface");
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/netsc520.c linux/drivers/mtd/maps/netsc520.c
+--- linux-mips-2.4.27/drivers/mtd/maps/netsc520.c 2001-11-05 21:15:52.000000000 +0100
++++ linux/drivers/mtd/maps/netsc520.c 2004-11-19 10:25:11.935194320 +0100
+@@ -3,7 +3,7 @@
+ * Copyright (C) 2001 Mark Langsdorf (mark.langsdorf@amd.com)
+ * based on sc520cdp.c by Sysgo Real-Time Solutions GmbH
+ *
+- * $Id: netsc520.c,v 1.5 2001/10/02 15:05:14 dwmw2 Exp $
++ * $Id: netsc520.c,v 1.9 2003/05/21 12:45:19 dwmw2 Exp $
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+@@ -27,6 +27,7 @@
+ #include <linux/module.h>
+ #include <linux/types.h>
+ #include <linux/kernel.h>
++#include <linux/init.h>
+ #include <asm/io.h>
+ #include <linux/mtd/mtd.h>
+ #include <linux/mtd/map.h>
+@@ -50,95 +51,41 @@
+ ** recoverable afterwards.
+ */
+
+-static __u8 netsc520_read8(struct map_info *map, unsigned long ofs)
+-{
+- return readb(map->map_priv_1 + ofs);
+-}
+-
+-static __u16 netsc520_read16(struct map_info *map, unsigned long ofs)
+-{
+- return readw(map->map_priv_1 + ofs);
+-}
+-
+-static __u32 netsc520_read32(struct map_info *map, unsigned long ofs)
+-{
+- return readl(map->map_priv_1 + ofs);
+-}
+-
+-static void netsc520_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
+-{
+- memcpy_fromio(to, (void *)(map->map_priv_1 + from), len);
+-}
+-
+-static void netsc520_write8(struct map_info *map, __u8 d, unsigned long adr)
+-{
+- writeb(d, map->map_priv_1 + adr);
+-}
+-
+-static void netsc520_write16(struct map_info *map, __u16 d, unsigned long adr)
+-{
+- writew(d, map->map_priv_1 + adr);
+-}
+-
+-static void netsc520_write32(struct map_info *map, __u32 d, unsigned long adr)
+-{
+- writel(d, map->map_priv_1 + adr);
+-}
+-
+-static void netsc520_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
+-{
+- memcpy_toio((void *)(map->map_priv_1 + to), from, len);
+-}
+-
+ /* partition_info gives details on the logical partitions that the split the
+ * single flash device into. If the size if zero we use up to the end of the
+ * device. */
+ static struct mtd_partition partition_info[]={
+ {
+- name: "NetSc520 boot kernel",
+- offset: 0,
+- size: 0xc0000
++ .name = "NetSc520 boot kernel",
++ .offset = 0,
++ .size = 0xc0000
+ },
+ {
+- name: "NetSc520 Low BIOS",
+- offset: 0xc0000,
+- size: 0x40000
++ .name = "NetSc520 Low BIOS",
++ .offset = 0xc0000,
++ .size = 0x40000
+ },
+ {
+- name: "NetSc520 file system",
+- offset: 0x100000,
+- size: 0xe80000
++ .name = "NetSc520 file system",
++ .offset = 0x100000,
++ .size = 0xe80000
+ },
+ {
+- name: "NetSc520 High BIOS",
+- offset: 0xf80000,
+- size: 0x80000
++ .name = "NetSc520 High BIOS",
++ .offset = 0xf80000,
++ .size = 0x80000
+ },
+ };
+ #define NUM_PARTITIONS (sizeof(partition_info)/sizeof(partition_info[0]))
+
+-/*
+- * If no idea what is going on here. This is taken from the FlashFX stuff.
+- */
+-#define ROMCS 1
+-
+-
+ #define WINDOW_SIZE 0x00100000
+ #define WINDOW_ADDR 0x00200000
+
+ static struct map_info netsc520_map = {
+- name: "netsc520 Flash Bank",
+- size: WINDOW_SIZE,
+- buswidth: 4,
+- read8: netsc520_read8,
+- read16: netsc520_read16,
+- read32: netsc520_read32,
+- copy_from: netsc520_copy_from,
+- write8: netsc520_write8,
+- write16: netsc520_write16,
+- write32: netsc520_write32,
+- copy_to: netsc520_copy_to,
+- map_priv_2: WINDOW_ADDR
++ .name = "netsc520 Flash Bank",
++ .size = WINDOW_SIZE,
++ .buswidth = 4,
++ .phys = WINDOW_ADDR,
+ };
+
+ #define NUM_FLASH_BANKS (sizeof(netsc520_map)/sizeof(struct map_info))
+@@ -147,13 +94,16 @@
+
+ static int __init init_netsc520(void)
+ {
+- printk(KERN_NOTICE "NetSc520 flash device: %lx at %lx\n", netsc520_map.size, netsc520_map.map_priv_2);
+- netsc520_map.map_priv_1 = (unsigned long)ioremap_nocache(netsc520_map.map_priv_2, netsc520_map.size);
++ printk(KERN_NOTICE "NetSc520 flash device: 0x%lx at 0x%lx\n", netsc520_map.size, netsc520_map.phys);
++ netsc520_map.virt = (unsigned long)ioremap_nocache(netsc520_map.phys, netsc520_map.size);
+
+- if (!netsc520_map.map_priv_1) {
++ if (!netsc520_map.virt) {
+ printk("Failed to ioremap_nocache\n");
+ return -EIO;
+ }
++
++ simple_map_init(&netsc520_map);
++
+ mymtd = do_map_probe("cfi_probe", &netsc520_map);
+ if(!mymtd)
+ mymtd = do_map_probe("map_ram", &netsc520_map);
+@@ -161,11 +111,11 @@
+ mymtd = do_map_probe("map_rom", &netsc520_map);
+
+ if (!mymtd) {
+- iounmap((void *)netsc520_map.map_priv_1);
++ iounmap((void *)netsc520_map.virt);
+ return -ENXIO;
+ }
+
+- mymtd->module = THIS_MODULE;
++ mymtd->owner = THIS_MODULE;
+ add_mtd_partitions( mymtd, partition_info, NUM_PARTITIONS );
+ return 0;
+ }
+@@ -176,9 +126,9 @@
+ del_mtd_partitions(mymtd);
+ map_destroy(mymtd);
+ }
+- if (netsc520_map.map_priv_1) {
+- iounmap((void *)netsc520_map.map_priv_1);
+- netsc520_map.map_priv_1 = 0;
++ if (netsc520_map.virt) {
++ iounmap((void *)netsc520_map.virt);
++ netsc520_map.virt = 0;
+ }
+ }
+
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/nettel.c linux/drivers/mtd/maps/nettel.c
+--- linux-mips-2.4.27/drivers/mtd/maps/nettel.c 2003-02-26 01:53:49.000000000 +0100
++++ linux/drivers/mtd/maps/nettel.c 2004-11-19 10:25:11.937194016 +0100
+@@ -6,7 +6,7 @@
+ * (C) Copyright 2000-2001, Greg Ungerer (gerg@snapgear.com)
+ * (C) Copyright 2001-2002, SnapGear (www.snapgear.com)
+ *
+- * $Id: nettel.c,v 1.1 2002/08/08 06:30:13 gerg Exp $
++ * $Id: nettel.c,v 1.4 2003/05/20 20:59:30 dwmw2 Exp $
+ */
+
+ /****************************************************************************/
+@@ -59,128 +59,72 @@
+
+ /****************************************************************************/
+
+-static __u8 nettel_read8(struct map_info *map, unsigned long ofs)
+-{
+- return(readb(map->map_priv_1 + ofs));
+-}
+-
+-static __u16 nettel_read16(struct map_info *map, unsigned long ofs)
+-{
+- return(readw(map->map_priv_1 + ofs));
+-}
+-
+-static __u32 nettel_read32(struct map_info *map, unsigned long ofs)
+-{
+- return(readl(map->map_priv_1 + ofs));
+-}
+-
+-static void nettel_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
+-{
+- memcpy_fromio(to, map->map_priv_1 + from, len);
+-}
+-
+-static void nettel_write8(struct map_info *map, __u8 d, unsigned long adr)
+-{
+- writeb(d, map->map_priv_1 + adr);
+-}
+-
+-static void nettel_write16(struct map_info *map, __u16 d, unsigned long adr)
+-{
+- writew(d, map->map_priv_1 + adr);
+-}
+-
+-static void nettel_write32(struct map_info *map, __u32 d, unsigned long adr)
+-{
+- writel(d, map->map_priv_1 + adr);
+-}
+-
+-static void nettel_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
+-{
+- memcpy_toio(map->map_priv_1 + to, from, len);
+-}
+-
+ /****************************************************************************/
+
+ #ifdef CONFIG_MTD_CFI_INTELEXT
+ static struct map_info nettel_intel_map = {
+- name: "SnapGear Intel",
+- size: 0,
+- buswidth: INTEL_BUSWIDTH,
+- read8: nettel_read8,
+- read16: nettel_read16,
+- read32: nettel_read32,
+- copy_from: nettel_copy_from,
+- write8: nettel_write8,
+- write16: nettel_write16,
+- write32: nettel_write32,
+- copy_to: nettel_copy_to
++ .name = "SnapGear Intel",
++ .size = 0,
++ .buswidth = INTEL_BUSWIDTH,
+ };
+
+ static struct mtd_partition nettel_intel_partitions[] = {
+ {
+- name: "SnapGear kernel",
+- offset: 0,
+- size: 0x000e0000
++ .name = "SnapGear kernel",
++ .offset = 0,
++ .size = 0x000e0000
+ },
+ {
+- name: "SnapGear filesystem",
+- offset: 0x00100000,
++ .name = "SnapGear filesystem",
++ .offset = 0x00100000,
+ },
+ {
+- name: "SnapGear config",
+- offset: 0x000e0000,
+- size: 0x00020000
++ .name = "SnapGear config",
++ .offset = 0x000e0000,
++ .size = 0x00020000
+ },
+ {
+- name: "SnapGear Intel",
+- offset: 0
++ .name = "SnapGear Intel",
++ .offset = 0
+ },
+ {
+- name: "SnapGear BIOS Config",
+- offset: 0x007e0000,
+- size: 0x00020000
++ .name = "SnapGear BIOS Config",
++ .offset = 0x007e0000,
++ .size = 0x00020000
+ },
+ {
+- name: "SnapGear BIOS",
+- offset: 0x007e0000,
+- size: 0x00020000
++ .name = "SnapGear BIOS",
++ .offset = 0x007e0000,
++ .size = 0x00020000
+ },
+ };
+ #endif
+
+ static struct map_info nettel_amd_map = {
+- name: "SnapGear AMD",
+- size: AMD_WINDOW_MAXSIZE,
+- buswidth: AMD_BUSWIDTH,
+- read8: nettel_read8,
+- read16: nettel_read16,
+- read32: nettel_read32,
+- copy_from: nettel_copy_from,
+- write8: nettel_write8,
+- write16: nettel_write16,
+- write32: nettel_write32,
+- copy_to: nettel_copy_to
++ .name = "SnapGear AMD",
++ .size = AMD_WINDOW_MAXSIZE,
++ .buswidth = AMD_BUSWIDTH,
+ };
+
+ static struct mtd_partition nettel_amd_partitions[] = {
+ {
+- name: "SnapGear BIOS config",
+- offset: 0x000e0000,
+- size: 0x00010000
++ .name = "SnapGear BIOS config",
++ .offset = 0x000e0000,
++ .size = 0x00010000
+ },
+ {
+- name: "SnapGear BIOS",
+- offset: 0x000f0000,
+- size: 0x00010000
++ .name = "SnapGear BIOS",
++ .offset = 0x000f0000,
++ .size = 0x00010000
+ },
+ {
+- name: "SnapGear AMD",
+- offset: 0
++ .name = "SnapGear AMD",
++ .offset = 0
+ },
+ {
+- name: "SnapGear high BIOS",
+- offset: 0x001f0000,
+- size: 0x00010000
++ .name = "SnapGear high BIOS",
++ .offset = 0x001f0000,
++ .size = 0x00010000
+ }
+ };
+
+@@ -328,18 +272,20 @@
+ *amdpar = SC520_PAR(SC520_PAR_BOOTCS, amdaddr, maxsize);
+ __asm__ ("wbinvd");
+
+- nettel_amd_map.map_priv_1 = (unsigned long)
++ nettel_amd_map.phys = amdaddr;
++ nettel_amd_map.virt = (unsigned long)
+ ioremap_nocache(amdaddr, maxsize);
+- if (!nettel_amd_map.map_priv_1) {
++ if (!nettel_amd_map.virt) {
+ printk("SNAPGEAR: failed to ioremap() BOOTCS\n");
+ return(-EIO);
+ }
++ simple_map_init(&nettel_amd_map);
+
+ if ((amd_mtd = do_map_probe("jedec_probe", &nettel_amd_map))) {
+ printk(KERN_NOTICE "SNAPGEAR: AMD flash device size = %dK\n",
+ amd_mtd->size>>10);
+
+- amd_mtd->module = THIS_MODULE;
++ amd_mtd->owner = THIS_MODULE;
+
+ /* The high BIOS partition is only present for 2MB units */
+ num_amd_partitions = NUM_AMD_PARTITIONS;
+@@ -387,8 +333,8 @@
+
+ /* Destroy useless AMD MTD mapping */
+ amd_mtd = NULL;
+- iounmap((void *) nettel_amd_map.map_priv_1);
+- nettel_amd_map.map_priv_1 = (unsigned long) NULL;
++ iounmap((void *) nettel_amd_map.virt);
++ nettel_amd_map.virt = (unsigned long) NULL;
+ #else
+ /* Only AMD flash supported */
+ return(-ENXIO);
+@@ -411,16 +357,18 @@
+
+ /* Probe for the the size of the first Intel flash */
+ nettel_intel_map.size = maxsize;
+- nettel_intel_map.map_priv_1 = (unsigned long)
++ nettel_intel_map.phys = intel0addr;
++ nettel_intel_map.virt = (unsigned long)
+ ioremap_nocache(intel0addr, maxsize);
+- if (!nettel_intel_map.map_priv_1) {
++ if (!nettel_intel_map.virt) {
+ printk("SNAPGEAR: failed to ioremap() ROMCS1\n");
+ return(-EIO);
+ }
++ simple_map_init(&nettel_intel_map);
+
+ intel_mtd = do_map_probe("cfi_probe", &nettel_intel_map);
+ if (! intel_mtd) {
+- iounmap((void *) nettel_intel_map.map_priv_1);
++ iounmap((void *) nettel_intel_map.virt);
+ return(-ENXIO);
+ }
+
+@@ -441,19 +389,19 @@
+ /* Delete the old map and probe again to do both chips */
+ map_destroy(intel_mtd);
+ intel_mtd = NULL;
+- iounmap((void *) nettel_intel_map.map_priv_1);
++ iounmap((void *) nettel_intel_map.virt);
+
+ nettel_intel_map.size = maxsize;
+- nettel_intel_map.map_priv_1 = (unsigned long)
++ nettel_intel_map.virt = (unsigned long)
+ ioremap_nocache(intel0addr, maxsize);
+- if (!nettel_intel_map.map_priv_1) {
++ if (!nettel_intel_map.virt) {
+ printk("SNAPGEAR: failed to ioremap() ROMCS1/2\n");
+ return(-EIO);
+ }
+
+ intel_mtd = do_map_probe("cfi_probe", &nettel_intel_map);
+ if (! intel_mtd) {
+- iounmap((void *) nettel_intel_map.map_priv_1);
++ iounmap((void *) nettel_intel_map.virt);
+ return(-ENXIO);
+ }
+
+@@ -468,7 +416,7 @@
+ printk(KERN_NOTICE "SNAPGEAR: Intel flash device size = %dK\n",
+ (intel_mtd->size >> 10));
+
+- intel_mtd->module = THIS_MODULE;
++ intel_mtd->owner = THIS_MODULE;
+
+ #ifndef CONFIG_BLK_DEV_INITRD
+ ROOT_DEV = MKDEV(MTD_BLOCK_MAJOR, 1);
+@@ -523,18 +471,18 @@
+ del_mtd_partitions(amd_mtd);
+ map_destroy(amd_mtd);
+ }
+- if (nettel_amd_map.map_priv_1) {
+- iounmap((void *)nettel_amd_map.map_priv_1);
+- nettel_amd_map.map_priv_1 = 0;
++ if (nettel_amd_map.virt) {
++ iounmap((void *)nettel_amd_map.virt);
++ nettel_amd_map.virt = 0;
+ }
+ #ifdef CONFIG_MTD_CFI_INTELEXT
+ if (intel_mtd) {
+ del_mtd_partitions(intel_mtd);
+ map_destroy(intel_mtd);
+ }
+- if (nettel_intel_map.map_priv_1) {
+- iounmap((void *)nettel_intel_map.map_priv_1);
+- nettel_intel_map.map_priv_1 = 0;
++ if (nettel_intel_map.virt) {
++ iounmap((void *)nettel_intel_map.virt);
++ nettel_intel_map.virt = 0;
+ }
+ #endif
+ }
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/ocelot.c linux/drivers/mtd/maps/ocelot.c
+--- linux-mips-2.4.27/drivers/mtd/maps/ocelot.c 2001-11-05 21:15:52.000000000 +0100
++++ linux/drivers/mtd/maps/ocelot.c 2004-11-19 10:25:11.938193864 +0100
+@@ -1,5 +1,5 @@
+ /*
+- * $Id: ocelot.c,v 1.6 2001/10/02 15:05:14 dwmw2 Exp $
++ * $Id: ocelot.c,v 1.12 2003/05/21 12:45:19 dwmw2 Exp $
+ *
+ * Flash on Momenco Ocelot
+ */
+@@ -7,6 +7,7 @@
+ #include <linux/module.h>
+ #include <linux/types.h>
+ #include <linux/kernel.h>
++#include <linux/init.h>
+ #include <asm/io.h>
+ #include <linux/mtd/mtd.h>
+ #include <linux/mtd/map.h>
+@@ -20,47 +21,23 @@
+ #define NVRAM_WINDOW_SIZE 0x00007FF0
+ #define NVRAM_BUSWIDTH 1
+
+-extern int parse_redboot_partitions(struct mtd_info *master, struct mtd_partition **pparts);
+-
+ static unsigned int cacheflush = 0;
+
+ static struct mtd_info *flash_mtd;
+ static struct mtd_info *nvram_mtd;
+
+-__u8 ocelot_read8(struct map_info *map, unsigned long ofs)
+-{
+- return __raw_readb(map->map_priv_1 + ofs);
+-}
+-
+-void ocelot_write8(struct map_info *map, __u8 d, unsigned long adr)
+-{
+- cacheflush = 1;
+- __raw_writeb(d, map->map_priv_1 + adr);
+- mb();
+-}
+-
+-void ocelot_copy_from_cache(struct map_info *map, void *to, unsigned long from, ssize_t len)
+-{
+- if (cacheflush) {
+- dma_cache_inv(map->map_priv_2, map->size);
+- cacheflush = 0;
+- }
+- memcpy_fromio(to, map->map_priv_1 + from, len);
+-}
+-
+-void ocelot_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
++static void ocelot_ram_write(struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf)
+ {
+- memcpy_fromio(to, map->map_priv_1 + from, len);
+-}
++ struct map_info *map = (struct map_info *)mtd->priv;
++ size_t done = 0;
+
+-void ocelot_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
+-{
+ /* If we use memcpy, it does word-wide writes. Even though we told the
+ GT64120A that it's an 8-bit wide region, word-wide writes don't work.
+ We end up just writing the first byte of the four to all four bytes.
+ So we have this loop instead */
++ *retlen = len;
+ while(len) {
+- __raw_writeb(*(unsigned char *) from, map->map_priv_1 + to);
++ __raw_writeb(*(unsigned char *) from, map->virt + to);
+ from++;
+ to++;
+ len--;
+@@ -70,24 +47,21 @@
+ static struct mtd_partition *parsed_parts;
+
+ struct map_info ocelot_flash_map = {
+- name: "Ocelot boot flash",
+- size: FLASH_WINDOW_SIZE,
+- buswidth: FLASH_BUSWIDTH,
+- read8: ocelot_read8,
+- copy_from: ocelot_copy_from_cache,
+- write8: ocelot_write8,
++ .name = "Ocelot boot flash",
++ .size = FLASH_WINDOW_SIZE,
++ .buswidth = FLASH_BUSWIDTH,
++ .phys = FLASH_WINDOW_ADDR,
+ };
+
+ struct map_info ocelot_nvram_map = {
+- name: "Ocelot NVRAM",
+- size: NVRAM_WINDOW_SIZE,
+- buswidth: NVRAM_BUSWIDTH,
+- read8: ocelot_read8,
+- copy_from: ocelot_copy_from,
+- write8: ocelot_write8,
+- copy_to: ocelot_copy_to
++ .name = "Ocelot NVRAM",
++ .size = NVRAM_WINDOW_SIZE,
++ .buswidth = NVRAM_BUSWIDTH,
++ .phys = NVRAM_WINDOW_ADDR,
+ };
+
++static const char *probes[] = { "RedBoot", NULL };
++
+ static int __init init_ocelot_maps(void)
+ {
+ void *pld;
+@@ -107,12 +81,13 @@
+ iounmap(pld);
+
+ /* Now ioremap the NVRAM space */
+- ocelot_nvram_map.map_priv_1 = (unsigned long)ioremap_nocache(NVRAM_WINDOW_ADDR, NVRAM_WINDOW_SIZE);
+- if (!ocelot_nvram_map.map_priv_1) {
++ ocelot_nvram_map.virt = (unsigned long)ioremap_nocache(NVRAM_WINDOW_ADDR, NVRAM_WINDOW_SIZE);
++ if (!ocelot_nvram_map.virt) {
+ printk(KERN_NOTICE "Failed to ioremap Ocelot NVRAM space\n");
+ return -EIO;
+ }
+- // ocelot_nvram_map.map_priv_2 = ocelot_nvram_map.map_priv_1;
++
++ simple_map_init(&ocelot_nvram_map);
+
+ /* And do the RAM probe on it to get an MTD device */
+ nvram_mtd = do_map_probe("map_ram", &ocelot_nvram_map);
+@@ -120,22 +95,21 @@
+ printk("NVRAM probe failed\n");
+ goto fail_1;
+ }
+- nvram_mtd->module = THIS_MODULE;
++ nvram_mtd->owner = THIS_MODULE;
+ nvram_mtd->erasesize = 16;
++ /* Override the write() method */
++ nvram_mtd->write = ocelot_ram_write;
+
+ /* Now map the flash space */
+- ocelot_flash_map.map_priv_1 = (unsigned long)ioremap_nocache(FLASH_WINDOW_ADDR, FLASH_WINDOW_SIZE);
+- if (!ocelot_flash_map.map_priv_1) {
++ ocelot_flash_map.virt = (unsigned long)ioremap_nocache(FLASH_WINDOW_ADDR, FLASH_WINDOW_SIZE);
++ if (!ocelot_flash_map.virt) {
+ printk(KERN_NOTICE "Failed to ioremap Ocelot flash space\n");
+ goto fail_2;
+ }
+ /* Now the cached version */
+- ocelot_flash_map.map_priv_2 = (unsigned long)__ioremap(FLASH_WINDOW_ADDR, FLASH_WINDOW_SIZE, 0);
++ ocelot_flash_map.cached = (unsigned long)__ioremap(FLASH_WINDOW_ADDR, FLASH_WINDOW_SIZE, 0);
+
+- if (!ocelot_flash_map.map_priv_2) {
+- /* Doesn't matter if it failed. Just use the uncached version */
+- ocelot_flash_map.map_priv_2 = ocelot_flash_map.map_priv_1;
+- }
++ simple_map_init(&ocelot_flash_map);
+
+ /* Only probe for flash if the write jumper is present */
+ if (brd_status & 0x40) {
+@@ -155,10 +129,10 @@
+
+ add_mtd_device(nvram_mtd);
+
+- flash_mtd->module = THIS_MODULE;
+- nr_parts = parse_redboot_partitions(flash_mtd, &parsed_parts);
++ flash_mtd->owner = THIS_MODULE;
++ nr_parts = parse_mtd_partitions(flash_mtd, probes, &parsed_parts, 0);
+
+- if (nr_parts)
++ if (nr_parts > 0)
+ add_mtd_partitions(flash_mtd, parsed_parts, nr_parts);
+ else
+ add_mtd_device(flash_mtd);
+@@ -166,14 +140,13 @@
+ return 0;
+
+ fail3:
+- iounmap((void *)ocelot_flash_map.map_priv_1);
+- if (ocelot_flash_map.map_priv_2 &&
+- ocelot_flash_map.map_priv_2 != ocelot_flash_map.map_priv_1)
+- iounmap((void *)ocelot_flash_map.map_priv_2);
++ iounmap((void *)ocelot_flash_map.virt);
++ if (ocelot_flash_map.cached)
++ iounmap((void *)ocelot_flash_map.cached);
+ fail_2:
+ map_destroy(nvram_mtd);
+ fail_1:
+- iounmap((void *)ocelot_nvram_map.map_priv_1);
++ iounmap((void *)ocelot_nvram_map.virt);
+
+ return -ENXIO;
+ }
+@@ -182,16 +155,16 @@
+ {
+ del_mtd_device(nvram_mtd);
+ map_destroy(nvram_mtd);
+- iounmap((void *)ocelot_nvram_map.map_priv_1);
++ iounmap((void *)ocelot_nvram_map.virt);
+
+ if (parsed_parts)
+ del_mtd_partitions(flash_mtd);
+ else
+ del_mtd_device(flash_mtd);
+ map_destroy(flash_mtd);
+- iounmap((void *)ocelot_flash_map.map_priv_1);
+- if (ocelot_flash_map.map_priv_2 != ocelot_flash_map.map_priv_1)
+- iounmap((void *)ocelot_flash_map.map_priv_2);
++ iounmap((void *)ocelot_flash_map.virt);
++ if (ocelot_flash_map.cached)
++ iounmap((void *)ocelot_flash_map.cached);
+ }
+
+ module_init(init_ocelot_maps);
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/octagon-5066.c linux/drivers/mtd/maps/octagon-5066.c
+--- linux-mips-2.4.27/drivers/mtd/maps/octagon-5066.c 2003-08-13 19:19:18.000000000 +0200
++++ linux/drivers/mtd/maps/octagon-5066.c 2004-11-19 10:25:11.940193560 +0100
+@@ -1,4 +1,4 @@
+-// $Id: octagon-5066.c,v 1.20 2003/01/07 17:21:55 dwmw2 Exp $
++// $Id: octagon-5066.c,v 1.24 2003/05/21 15:15:07 dwmw2 Exp $
+ /* ######################################################################
+
+ Octagon 5066 MTD Driver.
+@@ -31,6 +31,7 @@
+ #include <asm/io.h>
+
+ #include <linux/mtd/map.h>
++#include <linux/mtd/mtd.h>
+
+ #define WINDOW_START 0xe8000
+ #define WINDOW_LENGTH 0x8000
+@@ -151,32 +152,34 @@
+
+ static struct map_info oct5066_map[2] = {
+ {
+- name: "Octagon 5066 Socket",
+- size: 512 * 1024,
+- buswidth: 1,
+- read8: oct5066_read8,
+- read16: oct5066_read16,
+- read32: oct5066_read32,
+- copy_from: oct5066_copy_from,
+- write8: oct5066_write8,
+- write16: oct5066_write16,
+- write32: oct5066_write32,
+- copy_to: oct5066_copy_to,
+- map_priv_1: 1<<6
++ .name = "Octagon 5066 Socket",
++ .phys = NO_XIP,
++ .size = 512 * 1024,
++ .buswidth = 1,
++ .read8 = oct5066_read8,
++ .read16 = oct5066_read16,
++ .read32 = oct5066_read32,
++ .copy_from = oct5066_copy_from,
++ .write8 = oct5066_write8,
++ .write16 = oct5066_write16,
++ .write32 = oct5066_write32,
++ .copy_to = oct5066_copy_to,
++ .map_priv_1 = 1<<6
+ },
+ {
+- name: "Octagon 5066 Internal Flash",
+- size: 2 * 1024 * 1024,
+- buswidth: 1,
+- read8: oct5066_read8,
+- read16: oct5066_read16,
+- read32: oct5066_read32,
+- copy_from: oct5066_copy_from,
+- write8: oct5066_write8,
+- write16: oct5066_write16,
+- write32: oct5066_write32,
+- copy_to: oct5066_copy_to,
+- map_priv_1: 2<<6
++ .name = "Octagon 5066 Internal Flash",
++ .phys = NO_XIP,
++ .size = 2 * 1024 * 1024,
++ .buswidth = 1,
++ .read8 = oct5066_read8,
++ .read16 = oct5066_read16,
++ .read32 = oct5066_read32,
++ .copy_from = oct5066_copy_from,
++ .write8 = oct5066_write8,
++ .write16 = oct5066_write16,
++ .write32 = oct5066_write32,
++ .copy_to = oct5066_copy_to,
++ .map_priv_1 = 2<<6
+ }
+ };
+
+@@ -244,6 +247,7 @@
+ }
+ if (OctProbe() != 0) {
+ printk(KERN_NOTICE "5066: Octagon Probe Failed, is this an Octagon 5066 SBC?\n");
++ iounmap((void *)iomapadr);
+ ret = -EAGAIN;
+ goto out_unmap;
+ }
+@@ -261,7 +265,7 @@
+ if (!oct5066_mtd[i])
+ oct5066_mtd[i] = do_map_probe("map_rom", &oct5066_map[i]);
+ if (oct5066_mtd[i]) {
+- oct5066_mtd[i]->module = THIS_MODULE;
++ oct5066_mtd[i]->owner = THIS_MODULE;
+ add_mtd_device(oct5066_mtd[i]);
+ }
+ }
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/omap-toto-flash.c linux/drivers/mtd/maps/omap-toto-flash.c
+--- linux-mips-2.4.27/drivers/mtd/maps/omap-toto-flash.c 1970-01-01 01:00:00.000000000 +0100
++++ linux/drivers/mtd/maps/omap-toto-flash.c 2004-11-19 10:25:11.941193408 +0100
+@@ -0,0 +1,137 @@
++/*
++ * NOR Flash memory access on TI Toto board
++ *
++ * jzhang@ti.com (C) 2003 Texas Instruments.
++ *
++ * (C) 2002 MontVista Software, Inc.
++ *
++ * $Id: omap-toto-flash.c,v 1.1 2003/10/21 13:55:21 dwmw2 Exp $
++ */
++
++#include <linux/config.h>
++#include <linux/module.h>
++#include <linux/types.h>
++#include <linux/kernel.h>
++
++#include <linux/errno.h>
++#include <linux/init.h>
++
++#include <linux/mtd/mtd.h>
++#include <linux/mtd/map.h>
++#include <linux/mtd/partitions.h>
++
++#include <asm/hardware.h>
++#include <asm/io.h>
++
++
++#ifndef CONFIG_ARCH_OMAP
++#error This is for OMAP architecture only
++#endif
++
++//these lines need be moved to a hardware header file
++#define OMAP_TOTO_FLASH_BASE 0xd8000000
++#define OMAP_TOTO_FLASH_SIZE 0x80000
++
++static struct map_info omap_toto_map_flash = {
++ .name = "OMAP Toto flash",
++ .buswidth = 2,
++ .virt = OMAP_TOTO_FLASH_BASE,
++};
++
++
++static struct mtd_partition toto_flash_partitions[] = {
++ {
++ .name = "BootLoader",
++ .size = 0x00040000, /* hopefully u-boot will stay 128k + 128*/
++ .offset = 0,
++ .mask_flags = MTD_WRITEABLE, /* force read-only */
++ }, {
++ .name = "ReservedSpace",
++ .size = 0x00030000,
++ .offset = MTDPART_OFS_APPEND,
++ //mask_flags: MTD_WRITEABLE, /* force read-only */
++ }, {
++ .name = "EnvArea", /* bottom 64KiB for env vars */
++ .size = MTDPART_SIZ_FULL,
++ .offset = MTDPART_OFS_APPEND,
++ }
++};
++
++static struct mtd_partition *parsed_parts;
++
++static struct mtd_info *flash_mtd;
++
++static int __init init_flash (void)
++{
++
++ struct mtd_partition *parts;
++ int nb_parts = 0;
++ int parsed_nr_parts = 0;
++ const char *part_type;
++
++ /*
++ * Static partition definition selection
++ */
++ part_type = "static";
++
++ parts = toto_flash_partitions;
++ nb_parts = ARRAY_SIZE(toto_flash_partitions);
++ omap_toto_map_flash.size = OMAP_TOTO_FLASH_SIZE;
++ omap_toto_map_flash.phys = virt_to_phys(OMAP_TOTO_FLASH_BASE);
++
++ simple_map_init(&omap_toto_map_flash);
++ /*
++ * Now let's probe for the actual flash. Do it here since
++ * specific machine settings might have been set above.
++ */
++ printk(KERN_NOTICE "OMAP toto flash: probing %d-bit flash bus\n",
++ omap_toto_map_flash.buswidth*8);
++ flash_mtd = do_map_probe("jedec_probe", &omap_toto_map_flash);
++ if (!flash_mtd)
++ return -ENXIO;
++
++ if (parsed_nr_parts > 0) {
++ parts = parsed_parts;
++ nb_parts = parsed_nr_parts;
++ }
++
++ if (nb_parts == 0) {
++ printk(KERN_NOTICE "OMAP toto flash: no partition info available,"
++ "registering whole flash at once\n");
++ if (add_mtd_device(flash_mtd)){
++ return -ENXIO;
++ }
++ } else {
++ printk(KERN_NOTICE "Using %s partition definition\n",
++ part_type);
++ return add_mtd_partitions(flash_mtd, parts, nb_parts);
++ }
++ return 0;
++}
++
++int __init omap_toto_mtd_init(void)
++{
++ int status;
++
++ if (status = init_flash()) {
++ printk(KERN_ERR "OMAP Toto Flash: unable to init map for toto flash\n");
++ }
++ return status;
++}
++
++static void __exit omap_toto_mtd_cleanup(void)
++{
++ if (flash_mtd) {
++ del_mtd_partitions(flash_mtd);
++ map_destroy(flash_mtd);
++ if (parsed_parts)
++ kfree(parsed_parts);
++ }
++}
++
++module_init(omap_toto_mtd_init);
++module_exit(omap_toto_mtd_cleanup);
++
++MODULE_AUTHOR("Jian Zhang");
++MODULE_DESCRIPTION("OMAP Toto board map driver");
++MODULE_LICENSE("GPL");
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/pb1xxx-flash.c linux/drivers/mtd/maps/pb1xxx-flash.c
+--- linux-mips-2.4.27/drivers/mtd/maps/pb1xxx-flash.c 2003-05-19 08:27:22.000000000 +0200
++++ linux/drivers/mtd/maps/pb1xxx-flash.c 2004-11-19 10:25:11.943193104 +0100
+@@ -3,12 +3,13 @@
+ *
+ * (C) 2001 Pete Popov <ppopov@mvista.com>
+ *
+- * $Id: pb1xxx-flash.c,v 1.4 2002/09/13 13:51:54 dwmw2 Exp $
++ * $Id: pb1xxx-flash.c,v 1.10 2003/08/28 06:50:24 ppopov Exp $
+ */
+
+ #include <linux/config.h>
+ #include <linux/module.h>
+ #include <linux/types.h>
++#include <linux/init.h>
+ #include <linux/kernel.h>
+
+ #include <linux/mtd/mtd.h>
+@@ -25,210 +26,110 @@
+ #endif
+
+ #ifdef CONFIG_MIPS_PB1000
++
+ #define WINDOW_ADDR 0x1F800000
+ #define WINDOW_SIZE 0x800000
+-#endif
+-
+-__u8 physmap_read8(struct map_info *map, unsigned long ofs)
+-{
+- __u8 ret;
+- ret = __raw_readb(map->map_priv_1 + ofs);
+- DBG("read8 from %x, %x\n", (unsigned)(map->map_priv_1 + ofs), ret);
+- return ret;
+-}
+-
+-__u16 physmap_read16(struct map_info *map, unsigned long ofs)
+-{
+- __u16 ret;
+- ret = __raw_readw(map->map_priv_1 + ofs);
+- DBG("read16 from %x, %x\n", (unsigned)(map->map_priv_1 + ofs), ret);
+- return ret;
+-}
+-
+-__u32 physmap_read32(struct map_info *map, unsigned long ofs)
+-{
+- __u32 ret;
+- ret = __raw_readl(map->map_priv_1 + ofs);
+- DBG("read32 from %x, %x\n", (unsigned)(map->map_priv_1 + ofs), ret);
+- return ret;
+-}
+-
+-void physmap_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
+-{
+- DBG("physmap_copy from %x to %x\n", (unsigned)from, (unsigned)to);
+- memcpy_fromio(to, map->map_priv_1 + from, len);
+-}
+-
+-void physmap_write8(struct map_info *map, __u8 d, unsigned long adr)
+-{
+- DBG("write8 at %x, %x\n", (unsigned)(map->map_priv_1 + adr), d);
+- __raw_writeb(d, map->map_priv_1 + adr);
+- mb();
+-}
+-
+-void physmap_write16(struct map_info *map, __u16 d, unsigned long adr)
+-{
+- DBG("write16 at %x, %x\n", (unsigned)(map->map_priv_1 + adr), d);
+- __raw_writew(d, map->map_priv_1 + adr);
+- mb();
+-}
+-
+-void physmap_write32(struct map_info *map, __u32 d, unsigned long adr)
+-{
+- DBG("write32 at %x, %x\n", (unsigned)(map->map_priv_1 + adr), d);
+- __raw_writel(d, map->map_priv_1 + adr);
+- mb();
+-}
+-
+-void physmap_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
+-{
+- DBG("physmap_copy_to %x from %x\n", (unsigned)to, (unsigned)from);
+- memcpy_toio(map->map_priv_1 + to, from, len);
+-}
+-
+-
+-
+-static struct map_info pb1xxx_map = {
+- name: "Pb1xxx flash",
+- read8: physmap_read8,
+- read16: physmap_read16,
+- read32: physmap_read32,
+- copy_from: physmap_copy_from,
+- write8: physmap_write8,
+- write16: physmap_write16,
+- write32: physmap_write32,
+- copy_to: physmap_copy_to,
+-};
+
+-
+-#ifdef CONFIG_MIPS_PB1000
+-
+-static unsigned long flash_size = 0x00800000;
+-static unsigned char flash_buswidth = 4;
+ static struct mtd_partition pb1xxx_partitions[] = {
+ {
+- name: "yamon env",
+- size: 0x00020000,
+- offset: 0,
+- mask_flags: MTD_WRITEABLE
+- },{
+- name: "User FS",
+- size: 0x003e0000,
+- offset: 0x20000,
+- },{
+- name: "boot code",
+- size: 0x100000,
+- offset: 0x400000,
+- mask_flags: MTD_WRITEABLE
+- },{
+- name: "raw/kernel",
+- size: 0x300000,
+- offset: 0x500000
+- }
++ .name = "yamon env",
++ .size = 0x00020000,
++ .offset = 0,
++ .mask_flags = MTD_WRITEABLE},
++ {
++ .name = "User FS",
++ .size = 0x003e0000,
++ .offset = 0x20000,},
++ {
++ .name = "boot code",
++ .size = 0x100000,
++ .offset = 0x400000,
++ .mask_flags = MTD_WRITEABLE},
++ {
++ .name = "raw/kernel",
++ .size = 0x300000,
++ .offset = 0x500000}
+ };
+
+ #elif defined(CONFIG_MIPS_PB1500) || defined(CONFIG_MIPS_PB1100)
+
+-static unsigned char flash_buswidth = 4;
+ #if defined(CONFIG_MTD_PB1500_BOOT) && defined(CONFIG_MTD_PB1500_USER)
+-/* both 32MiB banks will be used. Combine the first 32MiB bank and the
+- * first 28MiB of the second bank together into a single jffs/jffs2
++/* both 32MB banks will be used. Combine the first 32MB bank and the
++ * first 28MB of the second bank together into a single jffs/jffs2
+ * partition.
+ */
+-static unsigned long flash_size = 0x04000000;
+ #define WINDOW_ADDR 0x1C000000
+ #define WINDOW_SIZE 0x4000000
+ static struct mtd_partition pb1xxx_partitions[] = {
+ {
+- name: "User FS",
+- size: 0x3c00000,
+- offset: 0x0000000
+- },{
+- name: "yamon",
+- size: 0x0100000,
+- offset: 0x3c00000,
+- mask_flags: MTD_WRITEABLE
+- },{
+- name: "raw kernel",
+- size: 0x02c0000,
+- offset: 0x3d00000
++ .name = "User FS",
++ .size = 0x3c00000,
++ .offset = 0x0000000
++ },{
++ .name = "yamon",
++ .size = 0x0100000,
++ .offset = 0x3c00000,
++ .mask_flags = MTD_WRITEABLE
++ },{
++ .name = "raw kernel",
++ .size = 0x02c0000,
++ .offset = 0x3d00000
+ }
+ };
+ #elif defined(CONFIG_MTD_PB1500_BOOT) && !defined(CONFIG_MTD_PB1500_USER)
+-static unsigned long flash_size = 0x02000000;
+ #define WINDOW_ADDR 0x1E000000
+ #define WINDOW_SIZE 0x2000000
+ static struct mtd_partition pb1xxx_partitions[] = {
+ {
+- name: "User FS",
+- size: 0x1c00000,
+- offset: 0x0000000
+- },{
+- name: "yamon",
+- size: 0x0100000,
+- offset: 0x1c00000,
+- mask_flags: MTD_WRITEABLE
+- },{
+- name: "raw kernel",
+- size: 0x02c0000,
+- offset: 0x1d00000
++ .name = "User FS",
++ .size = 0x1c00000,
++ .offset = 0x0000000
++ },{
++ .name = "yamon",
++ .size = 0x0100000,
++ .offset = 0x1c00000,
++ .mask_flags = MTD_WRITEABLE
++ },{
++ .name = "raw kernel",
++ .size = 0x02c0000,
++ .offset = 0x1d00000
+ }
+ };
+ #elif !defined(CONFIG_MTD_PB1500_BOOT) && defined(CONFIG_MTD_PB1500_USER)
+-static unsigned long flash_size = 0x02000000;
+ #define WINDOW_ADDR 0x1C000000
+ #define WINDOW_SIZE 0x2000000
+ static struct mtd_partition pb1xxx_partitions[] = {
+ {
+- name: "User FS",
+- size: 0x1e00000,
+- offset: 0x0000000
+- },{
+- name: "raw kernel",
+- size: 0x0200000,
+- offset: 0x1e00000,
++ .name = "User FS",
++ .size = 0x1e00000,
++ .offset = 0x0000000
++ },{
++ .name = "raw kernel",
++ .size = 0x0200000,
++ .offset = 0x1e00000,
+ }
+ };
+ #else
+ #error MTD_PB1500 define combo error /* should never happen */
+ #endif
+-#elif defined(CONFIG_MTD_BOSPORUS)
+-static unsigned char flash_buswidth = 2;
+-static unsigned long flash_size = 0x02000000;
+-#define WINDOW_ADDR 0x1F000000
+-#define WINDOW_SIZE 0x2000000
+-static struct mtd_partition pb1xxx_partitions[] = {
+- {
+- name: "User FS",
+- size: 0x00400000,
+- offset: 0x00000000,
+- },{
+- name: "Yamon-2",
+- size: 0x00100000,
+- offset: 0x00400000,
+- },{
+- name: "Root FS",
+- size: 0x00700000,
+- offset: 0x00500000,
+- },{
+- name: "Yamon-1",
+- size: 0x00100000,
+- offset: 0x00C00000,
+- },{
+- name: "Kernel",
+- size: 0x00300000,
+- offset: 0x00D00000,
+- }
+-};
+ #else
+ #error Unsupported board
+ #endif
+
++#define NAME "Pb1x00 Linux Flash"
++#define PADDR WINDOW_ADDR
++#define BUSWIDTH 4
++#define SIZE WINDOW_SIZE
++#define PARTITIONS 4
++
++static struct map_info pb1xxx_mtd_map = {
++ .name = NAME,
++ .size = SIZE,
++ .buswidth = BUSWIDTH,
++ .phys = PADDR,
++};
+
+-#define NB_OF(x) (sizeof(x)/sizeof(x[0]))
+-
+-static struct mtd_partition *parsed_parts;
+-static struct mtd_info *mymtd;
++static struct mtd_info *pb1xxx_mtd;
+
+ int __init pb1xxx_mtd_init(void)
+ {
+@@ -236,40 +137,37 @@
+ int nb_parts = 0;
+ char *part_type;
+
+- /* Default flash buswidth */
+- pb1xxx_map.buswidth = flash_buswidth;
+-
+ /*
+ * Static partition definition selection
+ */
+ part_type = "static";
+ parts = pb1xxx_partitions;
+- nb_parts = NB_OF(pb1xxx_partitions);
+- pb1xxx_map.size = flash_size;
++ nb_parts = ARRAY_SIZE(pb1xxx_partitions);
+
+ /*
+ * Now let's probe for the actual flash. Do it here since
+ * specific machine settings might have been set above.
+ */
+ printk(KERN_NOTICE "Pb1xxx flash: probing %d-bit flash bus\n",
+- pb1xxx_map.buswidth*8);
+- pb1xxx_map.map_priv_1 =
+- (unsigned long)ioremap(WINDOW_ADDR, WINDOW_SIZE);
+- mymtd = do_map_probe("cfi_probe", &pb1xxx_map);
+- if (!mymtd) return -ENXIO;
+- mymtd->module = THIS_MODULE;
++ BUSWIDTH*8);
++ pb1xxx_mtd_map.virt = (unsigned long)ioremap(WINDOW_ADDR, WINDOW_SIZE);
++
++ simple_map_init(&pb1xxx_mtd_map);
++
++ pb1xxx_mtd = do_map_probe("cfi_probe", &pb1xxx_mtd_map);
++ if (!pb1xxx_mtd) return -ENXIO;
++ pb1xxx_mtd->owner = THIS_MODULE;
+
+- add_mtd_partitions(mymtd, parts, nb_parts);
++ add_mtd_partitions(pb1xxx_mtd, parts, nb_parts);
+ return 0;
+ }
+
+ static void __exit pb1xxx_mtd_cleanup(void)
+ {
+- if (mymtd) {
+- del_mtd_partitions(mymtd);
+- map_destroy(mymtd);
+- if (parsed_parts)
+- kfree(parsed_parts);
++ if (pb1xxx_mtd) {
++ del_mtd_partitions(pb1xxx_mtd);
++ map_destroy(pb1xxx_mtd);
++ iounmap((void *) pb1xxx_mtd_map.virt);
+ }
+ }
+
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/pci.c linux/drivers/mtd/maps/pci.c
+--- linux-mips-2.4.27/drivers/mtd/maps/pci.c 2003-02-26 01:53:49.000000000 +0100
++++ linux/drivers/mtd/maps/pci.c 2004-11-19 10:25:11.944192952 +0100
+@@ -7,7 +7,7 @@
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+- * $Id: pci.c,v 1.2 2003/01/24 13:11:43 dwmw2 Exp $
++ * $Id: pci.c,v 1.5 2003/05/20 20:59:31 dwmw2 Exp $
+ *
+ * Generic PCI memory map driver. We support the following boards:
+ * - Intel IQ80310 ATU.
+@@ -98,10 +98,10 @@
+ }
+
+ static struct mtd_pci_info intel_iq80310_info = {
+- init: intel_iq80310_init,
+- exit: intel_iq80310_exit,
+- translate: intel_iq80310_translate,
+- map_name: "cfi_probe",
++ .init = intel_iq80310_init,
++ .exit = intel_iq80310_exit,
++ .translate = intel_iq80310_translate,
++ .map_name = "cfi_probe",
+ };
+
+ /*
+@@ -181,10 +181,10 @@
+ }
+
+ static struct mtd_pci_info intel_dc21285_info = {
+- init: intel_dc21285_init,
+- exit: intel_dc21285_exit,
+- translate: intel_dc21285_translate,
+- map_name: "jedec_probe",
++ .init = intel_dc21285_init,
++ .exit = intel_dc21285_exit,
++ .translate = intel_dc21285_translate,
++ .map_name = "jedec_probe",
+ };
+
+ /*
+@@ -193,22 +193,20 @@
+
+ static struct pci_device_id mtd_pci_ids[] __devinitdata = {
+ {
+- vendor: PCI_VENDOR_ID_INTEL,
+- device: 0x530d,
+- subvendor: PCI_ANY_ID,
+- subdevice: PCI_ANY_ID,
+- class: PCI_CLASS_MEMORY_OTHER << 8,
+- class_mask: 0xffff00,
+- driver_data: (unsigned long)&intel_iq80310_info,
++ .vendor = PCI_VENDOR_ID_INTEL,
++ .device = 0x530d,
++ .subvendor = PCI_ANY_ID,
++ .subdevice = PCI_ANY_ID,
++ .class = PCI_CLASS_MEMORY_OTHER << 8,
++ .class_mask = 0xffff00,
++ .driver_data = (unsigned long)&intel_iq80310_info,
+ },
+ {
+- vendor: PCI_VENDOR_ID_DEC,
+- device: PCI_DEVICE_ID_DEC_21285,
+- subvendor: 0, /* DC21285 defaults to 0 on reset */
+- subdevice: 0, /* DC21285 defaults to 0 on reset */
+- class: 0,
+- class_mask: 0,
+- driver_data: (unsigned long)&intel_dc21285_info,
++ .vendor = PCI_VENDOR_ID_DEC,
++ .device = PCI_DEVICE_ID_DEC_21285,
++ .subvendor = 0, /* DC21285 defaults to 0 on reset */
++ .subdevice = 0, /* DC21285 defaults to 0 on reset */
++ .driver_data = (unsigned long)&intel_dc21285_info,
+ },
+ { 0, }
+ };
+@@ -275,14 +273,15 @@
+ }
+
+ static struct map_info mtd_pci_map = {
+- read8: mtd_pci_read8,
+- read16: mtd_pci_read16,
+- read32: mtd_pci_read32,
+- copy_from: mtd_pci_copyfrom,
+- write8: mtd_pci_write8,
+- write16: mtd_pci_write16,
+- write32: mtd_pci_write32,
+- copy_to: mtd_pci_copyto,
++ .phys = NO_XIP,
++ .read8 = mtd_pci_read8,
++ .read16 = mtd_pci_read16,
++ .read32 = mtd_pci_read32,
++ .copy_from = mtd_pci_copyfrom,
++ .write8 = mtd_pci_write8,
++ .write16 = mtd_pci_write16,
++ .write32 = mtd_pci_write32,
++ .copy_to = mtd_pci_copyto,
+ };
+
+ static int __devinit
+@@ -322,7 +321,7 @@
+ if (!mtd)
+ goto release;
+
+- mtd->module = THIS_MODULE;
++ mtd->owner = THIS_MODULE;
+ add_mtd_device(mtd);
+
+ pci_set_drvdata(dev, mtd);
+@@ -359,10 +358,10 @@
+ }
+
+ static struct pci_driver mtd_pci_driver = {
+- name: "MTD PCI",
+- probe: mtd_pci_probe,
+- remove: __devexit_p(mtd_pci_remove),
+- id_table: mtd_pci_ids,
++ .name = "MTD PCI",
++ .probe = mtd_pci_probe,
++ .remove = __devexit_p(mtd_pci_remove),
++ .id_table = mtd_pci_ids,
+ };
+
+ static int __init mtd_pci_maps_init(void)
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/pcmciamtd.c linux/drivers/mtd/maps/pcmciamtd.c
+--- linux-mips-2.4.27/drivers/mtd/maps/pcmciamtd.c 2003-02-26 01:53:49.000000000 +0100
++++ linux/drivers/mtd/maps/pcmciamtd.c 2004-11-19 10:25:11.946192648 +0100
+@@ -1,5 +1,5 @@
+ /*
+- * $Id: pcmciamtd.c,v 1.39 2003/01/06 17:51:38 spse Exp $
++ * $Id: pcmciamtd.c,v 1.48 2003/06/24 07:14:38 spse Exp $
+ *
+ * pcmciamtd.c - MTD driver for PCMCIA flash memory cards
+ *
+@@ -14,6 +14,7 @@
+ #include <linux/module.h>
+ #include <linux/slab.h>
+ #include <linux/timer.h>
++#include <linux/init.h>
+ #include <asm/io.h>
+ #include <asm/system.h>
+
+@@ -24,6 +25,7 @@
+ #include <pcmcia/ds.h>
+
+ #include <linux/mtd/map.h>
++#include <linux/mtd/mtd.h>
+
+ #ifdef CONFIG_MTD_DEBUG
+ static int debug = CONFIG_MTD_DEBUG_VERBOSE;
+@@ -47,7 +49,7 @@
+
+
+ #define DRIVER_DESC "PCMCIA Flash memory card driver"
+-#define DRIVER_VERSION "$Revision: 1.39 $"
++#define DRIVER_VERSION "$Revision: 1.48 $"
+
+ /* Size of the PCMCIA address space: 26 bits = 64 MB */
+ #define MAX_PCMCIA_ADDR 0x4000000
+@@ -96,7 +98,7 @@
+ MODULE_PARM(mem_speed, "i");
+ MODULE_PARM_DESC(mem_speed, "Set memory access speed in ns");
+ MODULE_PARM(force_size, "i");
+-MODULE_PARM_DESC(force_size, "Force size of card in MB (1-64)");
++MODULE_PARM_DESC(force_size, "Force size of card in MiB (1-64)");
+ MODULE_PARM(setvpp, "i");
+ MODULE_PARM_DESC(setvpp, "Set Vpp (0=Never, 1=On writes, 2=Always on, default=0)");
+ MODULE_PARM(vpp, "i");
+@@ -106,11 +108,13 @@
+
+
+
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,69)
+ static inline void cs_error(client_handle_t handle, int func, int ret)
+ {
+ error_info_t err = { func, ret };
+ CardServices(ReportError, handle, &err);
+ }
++#endif
+
+
+ /* read/write{8,16} copy_{from,to} routines with window remapping to access whole card */
+@@ -529,6 +533,7 @@
+
+ card_settings(dev, link, &new_name);
+
++ dev->pcmcia_map.phys = NO_XIP;
+ dev->pcmcia_map.read8 = pcmcia_read8_remap;
+ dev->pcmcia_map.read16 = pcmcia_read16_remap;
+ dev->pcmcia_map.copy_from = pcmcia_copy_from_remap;
+@@ -539,7 +544,7 @@
+ dev->pcmcia_map.set_vpp = pcmciamtd_set_vpp;
+
+ /* Request a memory window for PCMCIA. Some architeures can map windows upto the maximum
+- that PCMCIA can support (64Mb) - this is ideal and we aim for a window the size of the
++ that PCMCIA can support (64MiB) - this is ideal and we aim for a window the size of the
+ whole card - otherwise we try smaller windows until we succeed */
+
+ req.Attributes = WIN_MEMORY_TYPE_CM | WIN_ENABLE;
+@@ -552,7 +557,7 @@
+
+ do {
+ int ret;
+- DEBUG(2, "requesting window with size = %dKB memspeed = %d",
++ DEBUG(2, "requesting window with size = %dKiB memspeed = %d",
+ req.Size >> 10, req.AccessSpeed);
+ link->win = (window_handle_t)link->handle;
+ ret = CardServices(RequestWindow, &link->win, &req);
+@@ -560,7 +565,7 @@
+ if(ret) {
+ req.Size >>= 1;
+ } else {
+- DEBUG(2, "Got window of size %dKB", req.Size >> 10);
++ DEBUG(2, "Got window of size %dKiB", req.Size >> 10);
+ dev->win_size = req.Size;
+ break;
+ }
+@@ -573,7 +578,7 @@
+ pcmciamtd_release((u_long)link);
+ return;
+ }
+- DEBUG(1, "Allocated a window of %dKB", dev->win_size >> 10);
++ DEBUG(1, "Allocated a window of %dKiB", dev->win_size >> 10);
+
+ /* Get write protect status */
+ CS_CHECK(GetStatus, link->handle, &status);
+@@ -642,21 +647,21 @@
+ }
+
+ dev->mtd_info = mtd;
+- mtd->module = THIS_MODULE;
++ mtd->owner = THIS_MODULE;
+
+ if(new_name) {
+ int size = 0;
+ char unit = ' ';
+ /* Since we are using a default name, make it better by adding in the
+ size */
+- if(mtd->size < 1048576) { /* <1MB in size, show size in K */
++ if(mtd->size < 1048576) { /* <1MiB in size, show size in KiB */
+ size = mtd->size >> 10;
+ unit = 'K';
+ } else {
+ size = mtd->size >> 20;
+ unit = 'M';
+ }
+- snprintf(dev->mtd_name, sizeof(dev->mtd_name), "%d%cB %s", size, unit, "PCMCIA Memory card");
++ snprintf(dev->mtd_name, sizeof(dev->mtd_name), "%d%ciB %s", size, unit, "PCMCIA Memory card");
+ }
+
+ /* If the memory found is fits completely into the mapped PCMCIA window,
+@@ -828,16 +833,20 @@
+ }
+
+
++#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,68)
++static struct pcmcia_driver pcmciamtd_driver = {
++ .drv = {
++ .name = "pcmciamtd"
++ },
++ .attach = pcmciamtd_attach,
++ .detach = pcmciamtd_detach,
++ .owner = THIS_MODULE
++};
++#endif
++
++
+ static int __init init_pcmciamtd(void)
+ {
+- servinfo_t serv;
+-
+- info(DRIVER_DESC " " DRIVER_VERSION);
+- CardServices(GetCardServicesInfo, &serv);
+- if (serv.Revision != CS_RELEASE_CODE) {
+- err("Card Services release does not match!");
+- return -1;
+- }
+
+ if(buswidth && buswidth != 1 && buswidth != 2) {
+ info("bad buswidth (%d), using default", buswidth);
+@@ -851,15 +860,24 @@
+ info("bad mem_type (%d), using default", mem_type);
+ mem_type = 0;
+ }
++
++#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,68)
++ return pcmcia_register_driver(&pcmciamtd_driver);
++#else
+ register_pccard_driver(&dev_info, &pcmciamtd_attach, &pcmciamtd_detach);
+ return 0;
++#endif
+ }
+
+
+ static void __exit exit_pcmciamtd(void)
+ {
+ DEBUG(1, DRIVER_DESC " unloading");
++#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,68)
++ pcmcia_unregister_driver(&pcmciamtd_driver);
++#else
+ unregister_pccard_driver(&dev_info);
++#endif
+
+ while(dev_list) {
+ dev_link_t *link = dev_list;
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/physmap.c linux/drivers/mtd/maps/physmap.c
+--- linux-mips-2.4.27/drivers/mtd/maps/physmap.c 2003-02-26 01:53:50.000000000 +0100
++++ linux/drivers/mtd/maps/physmap.c 2004-11-19 10:25:11.947192496 +0100
+@@ -1,179 +1,114 @@
+ /*
+- * $Id: physmap.c,v 1.21 2002/09/05 05:12:54 acurtis Exp $
++ * $Id: physmap.c,v 1.30 2003/11/11 19:05:18 jsun Exp $
+ *
+ * Normal mappings of chips in physical memory
++ *
++ * Copyright (C) 2003 MontaVista Software Inc.
++ * Author: Jun Sun, jsun@mvista.com or jsun@junsun.net
++ *
++ * 031022 - [jsun] add run-time configure and partition setup
+ */
+
+ #include <linux/module.h>
+ #include <linux/types.h>
+ #include <linux/kernel.h>
++#include <linux/init.h>
++#include <linux/slab.h>
+ #include <asm/io.h>
+ #include <linux/mtd/mtd.h>
+ #include <linux/mtd/map.h>
+ #include <linux/config.h>
+-
+-#ifdef CONFIG_MTD_PARTITIONS
+ #include <linux/mtd/partitions.h>
+-#endif
+-
+-#define WINDOW_ADDR CONFIG_MTD_PHYSMAP_START
+-#define WINDOW_SIZE CONFIG_MTD_PHYSMAP_LEN
+-#define BUSWIDTH CONFIG_MTD_PHYSMAP_BUSWIDTH
+
+ static struct mtd_info *mymtd;
+
+-__u8 physmap_read8(struct map_info *map, unsigned long ofs)
+-{
+- return __raw_readb(map->map_priv_1 + ofs);
+-}
+-
+-__u16 physmap_read16(struct map_info *map, unsigned long ofs)
+-{
+- return __raw_readw(map->map_priv_1 + ofs);
+-}
+-
+-__u32 physmap_read32(struct map_info *map, unsigned long ofs)
+-{
+- return __raw_readl(map->map_priv_1 + ofs);
+-}
+-
+-void physmap_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
+-{
+- memcpy_fromio(to, map->map_priv_1 + from, len);
+-}
++struct map_info physmap_map = {.name = "phys_mapped_flash"};
+
+-void physmap_write8(struct map_info *map, __u8 d, unsigned long adr)
+-{
+- __raw_writeb(d, map->map_priv_1 + adr);
+- mb();
+-}
++#ifdef CONFIG_MTD_PARTITIONS
++static struct mtd_partition *mtd_parts;
++static int mtd_parts_nb;
+
+-void physmap_write16(struct map_info *map, __u16 d, unsigned long adr)
+-{
+- __raw_writew(d, map->map_priv_1 + adr);
+- mb();
+-}
++static int num_physmap_partitions;
++static struct mtd_partition *physmap_partitions;
+
+-void physmap_write32(struct map_info *map, __u32 d, unsigned long adr)
+-{
+- __raw_writel(d, map->map_priv_1 + adr);
+- mb();
+-}
++char *part_probes[] __initdata = {"cmdlinepart", "RedBoot", NULL};
+
+-void physmap_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
++void physmap_set_partitions(struct mtd_partition *parts, int num_parts)
+ {
+- memcpy_toio(map->map_priv_1 + to, from, len);
++ physmap_partitions=parts;
++ num_physmap_partitions=num_parts;
+ }
+-
+-struct map_info physmap_map = {
+- name: "Physically mapped flash",
+- size: WINDOW_SIZE,
+- buswidth: BUSWIDTH,
+- read8: physmap_read8,
+- read16: physmap_read16,
+- read32: physmap_read32,
+- copy_from: physmap_copy_from,
+- write8: physmap_write8,
+- write16: physmap_write16,
+- write32: physmap_write32,
+- copy_to: physmap_copy_to
+-};
+-
+-#ifdef CONFIG_MTD_PARTITIONS
+-#ifdef CONFIG_MTD_CMDLINE_PARTS
+-static struct mtd_partition *mtd_parts = 0;
+-static int mtd_parts_nb = 0;
+-#else
+-static struct mtd_partition physmap_partitions[] = {
+-/* Put your own partition definitions here */
+-#if 0
+- {
+- name: "bootROM",
+- size: 0x80000,
+- offset: 0,
+- mask_flags: MTD_WRITEABLE, /* force read-only */
+- }, {
+- name: "zImage",
+- size: 0x100000,
+- offset: MTDPART_OFS_APPEND,
+- mask_flags: MTD_WRITEABLE, /* force read-only */
+- }, {
+- name: "ramdisk.gz",
+- size: 0x300000,
+- offset: MTDPART_OFS_APPEND,
+- mask_flags: MTD_WRITEABLE, /* force read-only */
+- }, {
+- name: "User FS",
+- size: MTDPART_SIZ_FULL,
+- offset: MTDPART_OFS_APPEND,
+- }
+-#endif
+-};
+-
+-#define NUM_PARTITIONS (sizeof(physmap_partitions)/sizeof(struct mtd_partition))
+-
+-#endif
+-#endif
++#endif /* CONFIG_MTD_PARTITIONS */
+
+ int __init init_physmap(void)
+ {
+ static const char *rom_probe_types[] = { "cfi_probe", "jedec_probe", "map_rom", 0 };
+ const char **type;
+
+- printk(KERN_NOTICE "physmap flash device: %x at %x\n", WINDOW_SIZE, WINDOW_ADDR);
+- physmap_map.map_priv_1 = (unsigned long)ioremap(WINDOW_ADDR, WINDOW_SIZE);
++ printk(KERN_NOTICE "physmap flash device: %lx at %lx\n", physmap_map.size, physmap_map.phys);
++ physmap_map.virt = (unsigned long)ioremap(physmap_map.phys, physmap_map.size);
+
+- if (!physmap_map.map_priv_1) {
++ if (!physmap_map.virt) {
+ printk("Failed to ioremap\n");
+ return -EIO;
+ }
+
++ simple_map_init(&physmap_map);
++
+ mymtd = 0;
+ type = rom_probe_types;
+ for(; !mymtd && *type; type++) {
+ mymtd = do_map_probe(*type, &physmap_map);
+ }
+ if (mymtd) {
+- mymtd->module = THIS_MODULE;
++ mymtd->owner = THIS_MODULE;
+
+- add_mtd_device(mymtd);
+ #ifdef CONFIG_MTD_PARTITIONS
+-#ifdef CONFIG_MTD_CMDLINE_PARTS
+- mtd_parts_nb = parse_cmdline_partitions(mymtd, &mtd_parts,
+- "phys");
++ mtd_parts_nb = parse_mtd_partitions(mymtd, part_probes,
++ &mtd_parts, 0);
++
+ if (mtd_parts_nb > 0)
+ {
+- printk(KERN_NOTICE
+- "Using command line partition definition\n");
+ add_mtd_partitions (mymtd, mtd_parts, mtd_parts_nb);
++ return 0;
+ }
+-#else
+- if (NUM_PARTITIONS != 0)
++
++ if (num_physmap_partitions != 0)
+ {
+ printk(KERN_NOTICE
+ "Using physmap partition definition\n");
+- add_mtd_partitions (mymtd, physmap_partitions, NUM_PARTITIONS);
++ add_mtd_partitions (mymtd, physmap_partitions, num_physmap_partitions);
++ return 0;
+ }
+
+ #endif
+-#endif
++ add_mtd_device(mymtd);
++
+ return 0;
+ }
+
+- iounmap((void *)physmap_map.map_priv_1);
++ iounmap((void *)physmap_map.virt);
+ return -ENXIO;
+ }
+
+ static void __exit cleanup_physmap(void)
+ {
+- if (mymtd) {
++#ifdef CONFIG_MTD_PARTITIONS
++ if (mtd_parts_nb) {
++ del_mtd_partitions(mymtd);
++ kfree(mtd_parts);
++ } else if (num_physmap_partitions) {
++ del_mtd_partitions(mymtd);
++ } else {
+ del_mtd_device(mymtd);
+- map_destroy(mymtd);
+- }
+- if (physmap_map.map_priv_1) {
+- iounmap((void *)physmap_map.map_priv_1);
+- physmap_map.map_priv_1 = 0;
+ }
++#else
++ del_mtd_device(mymtd);
++#endif
++ map_destroy(mymtd);
++
++ iounmap((void *)physmap_map.virt);
++ physmap_map.virt = 0;
+ }
+
+ module_init(init_physmap);
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/pnc2000.c linux/drivers/mtd/maps/pnc2000.c
+--- linux-mips-2.4.27/drivers/mtd/maps/pnc2000.c 2001-11-05 21:15:52.000000000 +0100
++++ linux/drivers/mtd/maps/pnc2000.c 2004-11-19 10:25:11.949192192 +0100
+@@ -5,12 +5,13 @@
+ *
+ * This code is GPL
+ *
+- * $Id: pnc2000.c,v 1.10 2001/10/02 15:05:14 dwmw2 Exp $
++ * $Id: pnc2000.c,v 1.14 2003/05/21 12:45:19 dwmw2 Exp $
+ */
+
+ #include <linux/module.h>
+ #include <linux/types.h>
+ #include <linux/kernel.h>
++#include <linux/init.h>
+
+ #include <linux/mtd/mtd.h>
+ #include <linux/mtd/map.h>
+@@ -24,58 +25,13 @@
+ * MAP DRIVER STUFF
+ */
+
+-__u8 pnc_read8(struct map_info *map, unsigned long ofs)
+-{
+- return *(__u8 *)(WINDOW_ADDR + ofs);
+-}
+-
+-__u16 pnc_read16(struct map_info *map, unsigned long ofs)
+-{
+- return *(__u16 *)(WINDOW_ADDR + ofs);
+-}
+-
+-__u32 pnc_read32(struct map_info *map, unsigned long ofs)
+-{
+- return *(volatile unsigned int *)(WINDOW_ADDR + ofs);
+-}
+-
+-void pnc_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
+-{
+- memcpy(to, (void *)(WINDOW_ADDR + from), len);
+-}
+-
+-void pnc_write8(struct map_info *map, __u8 d, unsigned long adr)
+-{
+- *(__u8 *)(WINDOW_ADDR + adr) = d;
+-}
+-
+-void pnc_write16(struct map_info *map, __u16 d, unsigned long adr)
+-{
+- *(__u16 *)(WINDOW_ADDR + adr) = d;
+-}
+-
+-void pnc_write32(struct map_info *map, __u32 d, unsigned long adr)
+-{
+- *(__u32 *)(WINDOW_ADDR + adr) = d;
+-}
+-
+-void pnc_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
+-{
+- memcpy((void *)(WINDOW_ADDR + to), from, len);
+-}
+
+ struct map_info pnc_map = {
+- name: "PNC-2000",
+- size: WINDOW_SIZE,
+- buswidth: 4,
+- read8: pnc_read8,
+- read16: pnc_read16,
+- read32: pnc_read32,
+- copy_from: pnc_copy_from,
+- write8: pnc_write8,
+- write16: pnc_write16,
+- write32: pnc_write32,
+- copy_to: pnc_copy_to
++ .name = "PNC-2000",
++ .size = WINDOW_SIZE,
++ .buswidth = 4,
++ .phys = 0xFFFFFFFF,
++ .virt = WINDOW_ADDR,
+ };
+
+
+@@ -84,19 +40,19 @@
+ */
+ static struct mtd_partition pnc_partitions[3] = {
+ {
+- name: "PNC-2000 boot firmware",
+- size: 0x20000,
+- offset: 0
++ .name = "PNC-2000 boot firmware",
++ .size = 0x20000,
++ .offset = 0
+ },
+ {
+- name: "PNC-2000 kernel",
+- size: 0x1a0000,
+- offset: 0x20000
++ .name = "PNC-2000 kernel",
++ .size = 0x1a0000,
++ .offset = 0x20000
+ },
+ {
+- name: "PNC-2000 filesystem",
+- size: 0x240000,
+- offset: 0x1c0000
++ .name = "PNC-2000 filesystem",
++ .size = 0x240000,
++ .offset = 0x1c0000
+ }
+ };
+
+@@ -110,9 +66,11 @@
+ {
+ printk(KERN_NOTICE "Photron PNC-2000 flash mapping: %x at %x\n", WINDOW_SIZE, WINDOW_ADDR);
+
++ simple_map_init(&pnc_map);
++
+ mymtd = do_map_probe("cfi_probe", &pnc_map);
+ if (mymtd) {
+- mymtd->module = THIS_MODULE;
++ mymtd->owner = THIS_MODULE;
+ return add_mtd_partitions(mymtd, pnc_partitions, 3);
+ }
+
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/redwood.c linux/drivers/mtd/maps/redwood.c
+--- linux-mips-2.4.27/drivers/mtd/maps/redwood.c 2003-02-26 01:53:50.000000000 +0100
++++ linux/drivers/mtd/maps/redwood.c 2004-11-19 10:25:11.962190216 +0100
+@@ -1,38 +1,23 @@
+ /*
+- * $Id:
++ * $Id: redwood.c,v 1.7 2003/11/21 23:09:52 trini Exp $
+ *
+- * redwood.c - mapper for IBM Redwood-4/5 board.
++ * drivers/mtd/maps/redwood.c
+ *
+- * Copyright 2001 MontaVista Softare Inc.
++ * FLASH map for the IBM Redwood 4/5/6 boards.
+ *
+- * This program is free software; you can redistribute it and/or modify it
+- * under the terms of the GNU General Public License as published by the
+- * Free Software Foundation; either version 2 of the License, or (at your
+- * option) any later version.
+- *
+- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+- * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+- *
+- * You should have received a copy of the GNU General Public License along
+- * with this program; if not, write to the Free Software Foundation, Inc.,
+- * 675 Mass Ave, Cambridge, MA 02139, USA.
+- *
+- * History: 12/17/2001 - Armin
+- * migrated to use do_map_probe
++ * Author: MontaVista Software, Inc. <source@mvista.com>
+ *
++ * 2001-2003 (c) MontaVista, Software, Inc. This file is licensed under
++ * the terms of the GNU General Public License version 2. This program
++ * is licensed "as is" without any warranty of any kind, whether express
++ * or implied.
+ */
+
++#include <linux/config.h>
+ #include <linux/module.h>
+ #include <linux/types.h>
+ #include <linux/kernel.h>
++#include <linux/init.h>
+
+ #include <linux/mtd/mtd.h>
+ #include <linux/mtd/map.h>
+@@ -40,96 +25,102 @@
+
+ #include <asm/io.h>
+
++#if !defined (CONFIG_REDWOOD_6)
++
+ #define WINDOW_ADDR 0xffc00000
+ #define WINDOW_SIZE 0x00400000
+
+-__u8 redwood_flash_read8(struct map_info *map, unsigned long ofs)
+-{
+- return *(__u8 *)(map->map_priv_1 + ofs);
+-}
+-
+-__u16 redwood_flash_read16(struct map_info *map, unsigned long ofs)
+-{
+- return *(__u16 *)(map->map_priv_1 + ofs);
+-}
+-
+-__u32 redwood_flash_read32(struct map_info *map, unsigned long ofs)
+-{
+- return *(volatile unsigned int *)(map->map_priv_1 + ofs);
+-}
+-
+-void redwood_flash_copy_from(struct map_info *map, void *to,
+- unsigned long from, ssize_t len)
+-{
+- memcpy(to, (void *)(map->map_priv_1 + from), len);
+-}
+-
+-void redwood_flash_write8(struct map_info *map, __u8 d, unsigned long adr)
+-{
+- *(__u8 *)(map->map_priv_1 + adr) = d;
+-}
+-
+-void redwood_flash_write16(struct map_info *map, __u16 d, unsigned long adr)
+-{
+- *(__u16 *)(map->map_priv_1 + adr) = d;
+-}
+-
+-void redwood_flash_write32(struct map_info *map, __u32 d, unsigned long adr)
+-{
+- *(__u32 *)(map->map_priv_1 + adr) = d;
+-}
+-
+-void redwood_flash_copy_to(struct map_info *map, unsigned long to,
+- const void *from, ssize_t len)
+-{
+- memcpy((void *)(map->map_priv_1 + to), from, len);
+-}
++#define RW_PART0_OF 0
++#define RW_PART0_SZ 0x10000
++#define RW_PART1_OF RW_PART0_SZ
++#define RW_PART1_SZ 0x200000 - 0x10000
++#define RW_PART2_OF 0x200000
++#define RW_PART2_SZ 0x10000
++#define RW_PART3_OF 0x210000
++#define RW_PART3_SZ 0x200000 - (0x10000 + 0x20000)
++#define RW_PART4_OF 0x3e0000
++#define RW_PART4_SZ 0x20000
+
+-struct map_info redwood_flash_map = {
+- name: "IBM Redwood",
+- size: WINDOW_SIZE,
+- buswidth: 2,
+- read8: redwood_flash_read8,
+- read16: redwood_flash_read16,
+- read32: redwood_flash_read32,
+- copy_from: redwood_flash_copy_from,
+- write8: redwood_flash_write8,
+- write16: redwood_flash_write16,
+- write32: redwood_flash_write32,
+- copy_to: redwood_flash_copy_to
++static struct mtd_partition redwood_flash_partitions[] = {
++ {
++ .name = "Redwood OpenBIOS Vital Product Data",
++ .offset = RW_PART0_OF,
++ .size = RW_PART0_SZ,
++ .mask_flags = MTD_WRITEABLE /* force read-only */
++ },
++ {
++ .name = "Redwood kernel",
++ .offset = RW_PART1_OF,
++ .size = RW_PART1_SZ
++ },
++ {
++ .name = "Redwood OpenBIOS non-volatile storage",
++ .offset = RW_PART2_OF,
++ .size = RW_PART2_SZ,
++ .mask_flags = MTD_WRITEABLE /* force read-only */
++ },
++ {
++ .name = "Redwood filesystem",
++ .offset = RW_PART3_OF,
++ .size = RW_PART3_SZ
++ },
++ {
++ .name = "Redwood OpenBIOS",
++ .offset = RW_PART4_OF,
++ .size = RW_PART4_SZ,
++ .mask_flags = MTD_WRITEABLE /* force read-only */
++ }
+ };
+
++#else /* CONFIG_REDWOOD_6 */
++/* FIXME: the window is bigger - armin */
++#define WINDOW_ADDR 0xff800000
++#define WINDOW_SIZE 0x00800000
++
++#define RW_PART0_OF 0
++#define RW_PART0_SZ 0x400000 /* 4 MiB data */
++#define RW_PART1_OF RW_PART0_OF + RW_PART0_SZ
++#define RW_PART1_SZ 0x10000 /* 64K VPD */
++#define RW_PART2_OF RW_PART1_OF + RW_PART1_SZ
++#define RW_PART2_SZ 0x400000 - (0x10000 + 0x20000)
++#define RW_PART3_OF RW_PART2_OF + RW_PART2_SZ
++#define RW_PART3_SZ 0x20000
+
+ static struct mtd_partition redwood_flash_partitions[] = {
+ {
+- name: "Redwood OpenBIOS Vital Product Data",
+- offset: 0,
+- size: 0x10000,
+- mask_flags: MTD_WRITEABLE /* force read-only */
++ .name = "Redwood filesystem",
++ .offset = RW_PART0_OF,
++ .size = RW_PART0_SZ
+ },
+ {
+- name: "Redwood kernel",
+- offset: 0x10000,
+- size: 0x200000 - 0x10000
++ .name = "Redwood OpenBIOS Vital Product Data",
++ .offset = RW_PART1_OF,
++ .size = RW_PART1_SZ,
++ .mask_flags = MTD_WRITEABLE /* force read-only */
+ },
+ {
+- name: "Redwood OpenBIOS non-volatile storage",
+- offset: 0x200000,
+- size: 0x10000,
+- mask_flags: MTD_WRITEABLE /* force read-only */
++ .name = "Redwood kernel",
++ .offset = RW_PART2_OF,
++ .size = RW_PART2_SZ
+ },
+ {
+- name: "Redwood filesystem",
+- offset: 0x210000,
+- size: 0x200000 - (0x10000 + 0x20000)
+- },
+- {
+- name: "Redwood OpenBIOS",
+- offset: 0x3e0000,
+- size: 0x20000,
+- mask_flags: MTD_WRITEABLE /* force read-only */
++ .name = "Redwood OpenBIOS",
++ .offset = RW_PART3_OF,
++ .size = RW_PART3_SZ,
++ .mask_flags = MTD_WRITEABLE /* force read-only */
+ }
+ };
++
++#endif /* CONFIG_REDWOOD_6 */
++
++struct map_info redwood_flash_map = {
++ .name = "IBM Redwood",
++ .size = WINDOW_SIZE,
++ .buswidth = 2,
++ .phys = WINDOW_ADDR,
++};
++
++
+ #define NUM_REDWOOD_FLASH_PARTITIONS \
+ (sizeof(redwood_flash_partitions)/sizeof(redwood_flash_partitions[0]))
+
+@@ -140,18 +131,19 @@
+ printk(KERN_NOTICE "redwood: flash mapping: %x at %x\n",
+ WINDOW_SIZE, WINDOW_ADDR);
+
+- redwood_flash_map.map_priv_1 =
++ redwood_flash_map.virt =
+ (unsigned long)ioremap(WINDOW_ADDR, WINDOW_SIZE);
+
+- if (!redwood_flash_map.map_priv_1) {
++ if (!redwood_flash_map.virt) {
+ printk("init_redwood_flash: failed to ioremap\n");
+ return -EIO;
+ }
++ simple_map_init(&redwood_flash_map);
+
+ redwood_mtd = do_map_probe("cfi_probe",&redwood_flash_map);
+
+ if (redwood_mtd) {
+- redwood_mtd->module = THIS_MODULE;
++ redwood_mtd->owner = THIS_MODULE;
+ return add_mtd_partitions(redwood_mtd,
+ redwood_flash_partitions,
+ NUM_REDWOOD_FLASH_PARTITIONS);
+@@ -164,10 +156,15 @@
+ {
+ if (redwood_mtd) {
+ del_mtd_partitions(redwood_mtd);
+- iounmap((void *)redwood_flash_map.map_priv_1);
++ /* moved iounmap after map_destroy - armin */
+ map_destroy(redwood_mtd);
++ iounmap((void *)redwood_flash_map.virt);
+ }
+ }
+
+ module_init(init_redwood_flash);
+ module_exit(cleanup_redwood_flash);
++
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("MontaVista Software <source@mvista.com>");
++MODULE_DESCRIPTION("MTD map driver for the IBM Redwood reference boards");
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/rpxlite.c linux/drivers/mtd/maps/rpxlite.c
+--- linux-mips-2.4.27/drivers/mtd/maps/rpxlite.c 2001-11-05 21:15:52.000000000 +0100
++++ linux/drivers/mtd/maps/rpxlite.c 2004-11-19 10:25:11.963190064 +0100
+@@ -1,5 +1,5 @@
+ /*
+- * $Id: rpxlite.c,v 1.15 2001/10/02 15:05:14 dwmw2 Exp $
++ * $Id: rpxlite.c,v 1.19 2003/05/21 12:45:19 dwmw2 Exp $
+ *
+ * Handle mapping of the flash on the RPX Lite and CLLF boards
+ */
+@@ -7,6 +7,7 @@
+ #include <linux/module.h>
+ #include <linux/types.h>
+ #include <linux/kernel.h>
++#include <linux/init.h>
+ #include <asm/io.h>
+ #include <linux/mtd/mtd.h>
+ #include <linux/mtd/map.h>
+@@ -17,80 +18,31 @@
+
+ static struct mtd_info *mymtd;
+
+-__u8 rpxlite_read8(struct map_info *map, unsigned long ofs)
+-{
+- return __raw_readb(map->map_priv_1 + ofs);
+-}
+-
+-__u16 rpxlite_read16(struct map_info *map, unsigned long ofs)
+-{
+- return __raw_readw(map->map_priv_1 + ofs);
+-}
+-
+-__u32 rpxlite_read32(struct map_info *map, unsigned long ofs)
+-{
+- return __raw_readl(map->map_priv_1 + ofs);
+-}
+-
+-void rpxlite_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
+-{
+- memcpy_fromio(to, (void *)(map->map_priv_1 + from), len);
+-}
+-
+-void rpxlite_write8(struct map_info *map, __u8 d, unsigned long adr)
+-{
+- __raw_writeb(d, map->map_priv_1 + adr);
+- mb();
+-}
+-
+-void rpxlite_write16(struct map_info *map, __u16 d, unsigned long adr)
+-{
+- __raw_writew(d, map->map_priv_1 + adr);
+- mb();
+-}
+-
+-void rpxlite_write32(struct map_info *map, __u32 d, unsigned long adr)
+-{
+- __raw_writel(d, map->map_priv_1 + adr);
+- mb();
+-}
+-
+-void rpxlite_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
+-{
+- memcpy_toio((void *)(map->map_priv_1 + to), from, len);
+-}
+-
+-struct map_info rpxlite_map = {
+- name: "RPX",
+- size: WINDOW_SIZE,
+- buswidth: 4,
+- read8: rpxlite_read8,
+- read16: rpxlite_read16,
+- read32: rpxlite_read32,
+- copy_from: rpxlite_copy_from,
+- write8: rpxlite_write8,
+- write16: rpxlite_write16,
+- write32: rpxlite_write32,
+- copy_to: rpxlite_copy_to
++static struct map_info rpxlite_map = {
++ .name = "RPX",
++ .size = WINDOW_SIZE,
++ .buswidth = 4,
++ .phys = WINDOW_ADDR,
+ };
+
+ int __init init_rpxlite(void)
+ {
+ printk(KERN_NOTICE "RPX Lite or CLLF flash device: %x at %x\n", WINDOW_SIZE*4, WINDOW_ADDR);
+- rpxlite_map.map_priv_1 = (unsigned long)ioremap(WINDOW_ADDR, WINDOW_SIZE * 4);
++ rpxlite_map.virt = (unsigned long)ioremap(WINDOW_ADDR, WINDOW_SIZE * 4);
+
+- if (!rpxlite_map.map_priv_1) {
++ if (!rpxlite_map.virt) {
+ printk("Failed to ioremap\n");
+ return -EIO;
+ }
++ simple_map_init(&rpxlite_map);
+ mymtd = do_map_probe("cfi_probe", &rpxlite_map);
+ if (mymtd) {
+- mymtd->module = THIS_MODULE;
++ mymtd->owner = THIS_MODULE;
+ add_mtd_device(mymtd);
+ return 0;
+ }
+
+- iounmap((void *)rpxlite_map.map_priv_1);
++ iounmap((void *)rpxlite_map.virt);
+ return -ENXIO;
+ }
+
+@@ -100,9 +52,9 @@
+ del_mtd_device(mymtd);
+ map_destroy(mymtd);
+ }
+- if (rpxlite_map.map_priv_1) {
+- iounmap((void *)rpxlite_map.map_priv_1);
+- rpxlite_map.map_priv_1 = 0;
++ if (rpxlite_map.virt) {
++ iounmap((void *)rpxlite_map.virt);
++ rpxlite_map.virt = 0;
+ }
+ }
+
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/sa1100-flash.c linux/drivers/mtd/maps/sa1100-flash.c
+--- linux-mips-2.4.27/drivers/mtd/maps/sa1100-flash.c 2003-02-26 01:53:50.000000000 +0100
++++ linux/drivers/mtd/maps/sa1100-flash.c 2004-11-19 10:25:11.966189608 +0100
+@@ -3,7 +3,7 @@
+ *
+ * (C) 2000 Nicolas Pitre <nico@cam.org>
+ *
+- * $Id: sa1100-flash.c,v 1.29 2002/09/06 14:36:19 abz Exp $
++ * $Id: sa1100-flash.c,v 1.38 2004/01/22 19:11:08 rmk Exp $
+ */
+
+ #include <linux/config.h>
+@@ -11,278 +11,212 @@
+ #include <linux/types.h>
+ #include <linux/ioport.h>
+ #include <linux/kernel.h>
++#include <linux/init.h>
++#include <linux/errno.h>
++#include <linux/slab.h>
+
+ #include <linux/mtd/mtd.h>
+ #include <linux/mtd/map.h>
+ #include <linux/mtd/partitions.h>
++#include <linux/mtd/concat.h>
+
+ #include <asm/hardware.h>
++#include <asm/mach-types.h>
+ #include <asm/io.h>
++#include <asm/sizes.h>
+
++#include <asm/arch/h3600.h>
+
+ #ifndef CONFIG_ARCH_SA1100
+ #error This is for SA1100 architecture only
+ #endif
+
++/*
++ * This isnt complete yet, so...
++ */
++#define CONFIG_MTD_SA1100_STATICMAP 1
+
+-#define WINDOW_ADDR 0xe8000000
+-
+-static __u8 sa1100_read8(struct map_info *map, unsigned long ofs)
+-{
+- return readb(map->map_priv_1 + ofs);
+-}
+-
+-static __u16 sa1100_read16(struct map_info *map, unsigned long ofs)
+-{
+- return readw(map->map_priv_1 + ofs);
+-}
+-
+-static __u32 sa1100_read32(struct map_info *map, unsigned long ofs)
+-{
+- return readl(map->map_priv_1 + ofs);
+-}
+-
+-static void sa1100_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
+-{
+- memcpy(to, (void *)(map->map_priv_1 + from), len);
+-}
+-
+-static void sa1100_write8(struct map_info *map, __u8 d, unsigned long adr)
+-{
+- writeb(d, map->map_priv_1 + adr);
+-}
+-
+-static void sa1100_write16(struct map_info *map, __u16 d, unsigned long adr)
+-{
+- writew(d, map->map_priv_1 + adr);
+-}
+-
+-static void sa1100_write32(struct map_info *map, __u32 d, unsigned long adr)
+-{
+- writel(d, map->map_priv_1 + adr);
+-}
+-
+-static void sa1100_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
+-{
+- memcpy((void *)(map->map_priv_1 + to), from, len);
+-}
+-
+-static struct map_info sa1100_map = {
+- name: "SA1100 flash",
+- read8: sa1100_read8,
+- read16: sa1100_read16,
+- read32: sa1100_read32,
+- copy_from: sa1100_copy_from,
+- write8: sa1100_write8,
+- write16: sa1100_write16,
+- write32: sa1100_write32,
+- copy_to: sa1100_copy_to,
+-
+- map_priv_1: WINDOW_ADDR,
+- map_priv_2: -1,
+-};
+-
+-
++#ifdef CONFIG_MTD_SA1100_STATICMAP
+ /*
+ * Here are partition information for all known SA1100-based devices.
+ * See include/linux/mtd/partitions.h for definition of the mtd_partition
+ * structure.
+ *
+- * The *_max_flash_size is the maximum possible mapped flash size which
+- * is not necessarily the actual flash size. It must be no more than
+- * the value specified in the "struct map_desc *_io_desc" mapping
+- * definition for the corresponding machine.
++ * Please note:
++ * 1. We no longer support static flash mappings via the machine io_desc
++ * structure.
++ * 2. The flash size given should be the largest flash size that can
++ * be accommodated.
++ *
++ * The MTD layer will detect flash chip aliasing and reduce the size of
++ * the map accordingly.
+ *
+ * Please keep these in alphabetical order, and formatted as per existing
+ * entries. Thanks.
+ */
+
+ #ifdef CONFIG_SA1100_ADSBITSY
+-#define ADSBITSY_FLASH_SIZE 0x02000000
+ static struct mtd_partition adsbitsy_partitions[] = {
+ {
+- name: "bootROM",
+- size: 0x80000,
+- offset: 0,
+- mask_flags: MTD_WRITEABLE, /* force read-only */
+- }, {
+- name: "zImage",
+- size: 0x100000,
+- offset: MTDPART_OFS_APPEND,
+- mask_flags: MTD_WRITEABLE, /* force read-only */
+- }, {
+- name: "ramdisk.gz",
+- size: 0x300000,
+- offset: MTDPART_OFS_APPEND,
+- mask_flags: MTD_WRITEABLE, /* force read-only */
+- }, {
+- name: "User FS",
+- size: MTDPART_SIZ_FULL,
+- offset: MTDPART_OFS_APPEND,
++ .name = "bootROM",
++ .size = 0x80000,
++ .offset = 0,
++ .mask_flags = MTD_WRITEABLE, /* force read-only */
++ }, {
++ .name = "zImage",
++ .size = 0x100000,
++ .offset = MTDPART_OFS_APPEND,
++ .mask_flags = MTD_WRITEABLE, /* force read-only */
++ }, {
++ .name = "ramdisk.gz",
++ .size = 0x300000,
++ .offset = MTDPART_OFS_APPEND,
++ .mask_flags = MTD_WRITEABLE, /* force read-only */
++ }, {
++ .name = "User FS",
++ .size = MTDPART_SIZ_FULL,
++ .offset = MTDPART_OFS_APPEND,
+ }
+ };
+ #endif
+
+ #ifdef CONFIG_SA1100_ASSABET
+ /* Phase 4 Assabet has two 28F160B3 flash parts in bank 0: */
+-#define ASSABET4_FLASH_SIZE 0x00400000
+ static struct mtd_partition assabet4_partitions[] = {
+ {
+- name: "bootloader",
+- size: 0x00020000,
+- offset: 0,
+- mask_flags: MTD_WRITEABLE,
+- }, {
+- name: "bootloader params",
+- size: 0x00020000,
+- offset: MTDPART_OFS_APPEND,
+- mask_flags: MTD_WRITEABLE,
+- }, {
+- name: "jffs",
+- size: MTDPART_SIZ_FULL,
+- offset: MTDPART_OFS_APPEND,
++ .name = "bootloader",
++ .size = 0x00020000,
++ .offset = 0,
++ .mask_flags = MTD_WRITEABLE,
++ }, {
++ .name = "bootloader params",
++ .size = 0x00020000,
++ .offset = MTDPART_OFS_APPEND,
++ .mask_flags = MTD_WRITEABLE,
++ }, {
++ .name = "jffs",
++ .size = MTDPART_SIZ_FULL,
++ .offset = MTDPART_OFS_APPEND,
+ }
+ };
+
+ /* Phase 5 Assabet has two 28F128J3A flash parts in bank 0: */
+-#define ASSABET5_FLASH_SIZE 0x02000000
+ static struct mtd_partition assabet5_partitions[] = {
+ {
+- name: "bootloader",
+- size: 0x00040000,
+- offset: 0,
+- mask_flags: MTD_WRITEABLE,
+- }, {
+- name: "bootloader params",
+- size: 0x00040000,
+- offset: MTDPART_OFS_APPEND,
+- mask_flags: MTD_WRITEABLE,
+- }, {
+- name: "jffs",
+- size: MTDPART_SIZ_FULL,
+- offset: MTDPART_OFS_APPEND,
++ .name = "bootloader",
++ .size = 0x00040000,
++ .offset = 0,
++ .mask_flags = MTD_WRITEABLE,
++ }, {
++ .name = "bootloader params",
++ .size = 0x00040000,
++ .offset = MTDPART_OFS_APPEND,
++ .mask_flags = MTD_WRITEABLE,
++ }, {
++ .name = "jffs",
++ .size = MTDPART_SIZ_FULL,
++ .offset = MTDPART_OFS_APPEND,
+ }
+ };
+
+-#define ASSABET_FLASH_SIZE ASSABET5_FLASH_SIZE
+ #define assabet_partitions assabet5_partitions
+ #endif
+
+ #ifdef CONFIG_SA1100_BADGE4
+-
+ /*
+- * 1 x Intel 28F320C3BA100 Advanced+ Boot Block Flash (32 Mi bit)
++ * 1 x Intel 28F320C3 Advanced+ Boot Block Flash (32 Mi bit)
+ * Eight 4 KiW Parameter Bottom Blocks (64 KiB)
+ * Sixty-three 32 KiW Main Blocks (4032 Ki b)
++ *
++ * <or>
++ *
++ * 1 x Intel 28F640C3 Advanced+ Boot Block Flash (64 Mi bit)
++ * Eight 4 KiW Parameter Bottom Blocks (64 KiB)
++ * One-hundred-twenty-seven 32 KiW Main Blocks (8128 Ki b)
+ */
+-#define BADGE4_FLASH_SIZE 0x00400000
+ static struct mtd_partition badge4_partitions[] = {
+ {
+- name: "BLOB boot loader",
+- offset: 0,
+- size: 0x0000A000
+- }, {
+- name: "params",
+- offset: MTDPART_OFS_APPEND,
+- size: 0x00006000
+- }, {
+- name: "kernel",
+- offset: MTDPART_OFS_APPEND,
+- size: 0x00100000
+- }, {
+- name: "root",
+- offset: MTDPART_OFS_APPEND,
+- size: MTDPART_SIZ_FULL
++ .name = "BLOB boot loader",
++ .offset = 0,
++ .size = 0x0000A000
++ }, {
++ .name = "params",
++ .offset = MTDPART_OFS_APPEND,
++ .size = 0x00006000
++ }, {
++ .name = "root",
++ .offset = MTDPART_OFS_APPEND,
++ .size = MTDPART_SIZ_FULL
+ }
+ };
+-
+ #endif
+
+
+ #ifdef CONFIG_SA1100_CERF
+ #ifdef CONFIG_SA1100_CERF_FLASH_32MB
+-#define CERF_FLASH_SIZE 0x02000000
+-static struct mtd_partition cerf_partitions[] = {
+- {
+- name: "firmware",
+- size: 0x00040000,
+- offset: 0,
+- }, {
+- name: "params",
+- size: 0x00040000,
+- offset: 0x00040000,
+- }, {
+- name: "kernel",
+- size: 0x00100000,
+- offset: 0x00080000,
+- }, {
+- name: "rootdisk",
+- size: 0x01E80000,
+- offset: 0x00180000,
+- }
+-};
++# define CERF_FLASH_SIZE 0x02000000
+ #elif defined CONFIG_SA1100_CERF_FLASH_16MB
+-#define CERF_FLASH_SIZE 0x01000000
++# define CERF_FLASH_SIZE 0x01000000
++#elif defined CONFIG_SA1100_CERF_FLASH_8MB
++# define CERF_FLASH_SIZE 0x00800000
++#else
++# error "Undefined flash size for CERF in sa1100-flash.c"
++#endif
++
+ static struct mtd_partition cerf_partitions[] = {
+ {
+- name: "firmware",
+- size: 0x00020000,
+- offset: 0,
+- }, {
+- name: "params",
+- size: 0x00020000,
+- offset: 0x00020000,
+- }, {
+- name: "kernel",
+- size: 0x00100000,
+- offset: 0x00040000,
+- }, {
+- name: "rootdisk",
+- size: 0x00EC0000,
+- offset: 0x00140000,
++ .name = "Bootloader",
++ .size = 0x00020000,
++ .offset = 0x00000000,
++ }, {
++ .name = "Params",
++ .size = 0x00040000,
++ .offset = 0x00020000,
++ }, {
++ .name = "Kernel",
++ .size = 0x00100000,
++ .offset = 0x00060000,
++ }, {
++ .name = "Filesystem",
++ .size = CERF_FLASH_SIZE-0x00160000,
++ .offset = 0x00160000,
+ }
+ };
+-#elif defined CONFIG_SA1100_CERF_FLASH_8MB
+-# error "Unwritten type definition"
+-#else
+-# error "Undefined memory orientation for CERF in sa1100-flash.c"
+-#endif
+ #endif
+
+ #ifdef CONFIG_SA1100_CONSUS
+-#define CONSUS_FLASH_SIZE 0x02000000
+ static struct mtd_partition consus_partitions[] = {
+ {
+- name: "Consus boot firmware",
+- offset: 0,
+- size: 0x00040000,
+- mask_flags: MTD_WRITABLE, /* force read-only */
+- }, {
+- name: "Consus kernel",
+- offset: 0x00040000,
+- size: 0x00100000,
+- mask_flags: 0,
++ .name = "Consus boot firmware",
++ .offset = 0,
++ .size = 0x00040000,
++ .mask_flags = MTD_WRITABLE, /* force read-only */
++ }, {
++ .name = "Consus kernel",
++ .offset = 0x00040000,
++ .size = 0x00100000,
++ .mask_flags = 0,
+ }, {
+- name: "Consus disk",
+- offset: 0x00140000,
++ .name = "Consus disk",
++ .offset = 0x00140000,
+ /* The rest (up to 16M) for jffs. We could put 0 and
+ make it find the size automatically, but right now
+ i have 32 megs. jffs will use all 32 megs if given
+ the chance, and this leads to horrible problems
+ when you try to re-flash the image because blob
+ won't erase the whole partition. */
+- size: 0x01000000 - 0x00140000,
+- mask_flags: 0,
++ .size = 0x01000000 - 0x00140000,
++ .mask_flags = 0,
+ }, {
+ /* this disk is a secondary disk, which can be used as
+ needed, for simplicity, make it the size of the other
+ consus partition, although realistically it could be
+ the remainder of the disk (depending on the file
+ system used) */
+- name: "Consus disk2",
+- offset: 0x01000000,
+- size: 0x01000000 - 0x00140000,
+- mask_flags: 0,
++ .name = "Consus disk2",
++ .offset = 0x01000000,
++ .size = 0x01000000 - 0x00140000,
++ .mask_flags = 0,
+ }
+ };
+ #endif
+@@ -292,96 +226,95 @@
+ #define FLEXANET_FLASH_SIZE 0x02000000
+ static struct mtd_partition flexanet_partitions[] = {
+ {
+- name: "bootloader",
+- size: 0x00040000,
+- offset: 0,
+- mask_flags: MTD_WRITEABLE,
+- }, {
+- name: "bootloader params",
+- size: 0x00040000,
+- offset: MTDPART_OFS_APPEND,
+- mask_flags: MTD_WRITEABLE,
+- }, {
+- name: "kernel",
+- size: 0x000C0000,
+- offset: MTDPART_OFS_APPEND,
+- mask_flags: MTD_WRITEABLE,
+- }, {
+- name: "altkernel",
+- size: 0x000C0000,
+- offset: MTDPART_OFS_APPEND,
+- mask_flags: MTD_WRITEABLE,
+- }, {
+- name: "root",
+- size: 0x00400000,
+- offset: MTDPART_OFS_APPEND,
+- mask_flags: MTD_WRITEABLE,
+- }, {
+- name: "free1",
+- size: 0x00300000,
+- offset: MTDPART_OFS_APPEND,
+- mask_flags: MTD_WRITEABLE,
+- }, {
+- name: "free2",
+- size: 0x00300000,
+- offset: MTDPART_OFS_APPEND,
+- mask_flags: MTD_WRITEABLE,
+- }, {
+- name: "free3",
+- size: MTDPART_SIZ_FULL,
+- offset: MTDPART_OFS_APPEND,
+- mask_flags: MTD_WRITEABLE,
++ .name = "bootloader",
++ .size = 0x00040000,
++ .offset = 0,
++ .mask_flags = MTD_WRITEABLE,
++ }, {
++ .name = "bootloader params",
++ .size = 0x00040000,
++ .offset = MTDPART_OFS_APPEND,
++ .mask_flags = MTD_WRITEABLE,
++ }, {
++ .name = "kernel",
++ .size = 0x000C0000,
++ .offset = MTDPART_OFS_APPEND,
++ .mask_flags = MTD_WRITEABLE,
++ }, {
++ .name = "altkernel",
++ .size = 0x000C0000,
++ .offset = MTDPART_OFS_APPEND,
++ .mask_flags = MTD_WRITEABLE,
++ }, {
++ .name = "root",
++ .size = 0x00400000,
++ .offset = MTDPART_OFS_APPEND,
++ .mask_flags = MTD_WRITEABLE,
++ }, {
++ .name = "free1",
++ .size = 0x00300000,
++ .offset = MTDPART_OFS_APPEND,
++ .mask_flags = MTD_WRITEABLE,
++ }, {
++ .name = "free2",
++ .size = 0x00300000,
++ .offset = MTDPART_OFS_APPEND,
++ .mask_flags = MTD_WRITEABLE,
++ }, {
++ .name = "free3",
++ .size = MTDPART_SIZ_FULL,
++ .offset = MTDPART_OFS_APPEND,
++ .mask_flags = MTD_WRITEABLE,
+ }
+ };
+ #endif
+
+ #ifdef CONFIG_SA1100_FREEBIRD
+-#define FREEBIRD_FLASH_SIZE 0x02000000
+ static struct mtd_partition freebird_partitions[] = {
+-#if CONFIG_SA1100_FREEBIRD_NEW
++#ifdef CONFIG_SA1100_FREEBIRD_NEW
+ {
+- name: "firmware",
+- size: 0x00040000,
+- offset: 0,
+- mask_flags: MTD_WRITEABLE, /* force read-only */
+- }, {
+- name: "kernel",
+- size: 0x00080000,
+- offset: 0x00040000,
+- }, {
+- name: "params",
+- size: 0x00040000,
+- offset: 0x000C0000,
+- }, {
+- name: "initrd",
+- size: 0x00100000,
+- offset: 0x00100000,
+- }, {
+- name: "root cramfs",
+- size: 0x00300000,
+- offset: 0x00200000,
+- }, {
+- name: "usr cramfs",
+- size: 0x00C00000,
+- offset: 0x00500000,
+- }, {
+- name: "local",
+- size: MTDPART_SIZ_FULL,
+- offset: 0x01100000,
++ .name = "firmware",
++ .size = 0x00040000,
++ .offset = 0,
++ .mask_flags = MTD_WRITEABLE, /* force read-only */
++ }, {
++ .name = "kernel",
++ .size = 0x00080000,
++ .offset = 0x00040000,
++ }, {
++ .name = "params",
++ .size = 0x00040000,
++ .offset = 0x000C0000,
++ }, {
++ .name = "initrd",
++ .size = 0x00100000,
++ .offset = 0x00100000,
++ }, {
++ .name = "root cramfs",
++ .size = 0x00300000,
++ .offset = 0x00200000,
++ }, {
++ .name = "usr cramfs",
++ .size = 0x00C00000,
++ .offset = 0x00500000,
++ }, {
++ .name = "local",
++ .size = MTDPART_SIZ_FULL,
++ .offset = 0x01100000,
+ }
+ #else
+ {
+- size: 0x00040000,
+- offset: 0,
++ .size = 0x00040000,
++ .offset = 0,
+ }, {
+- size: 0x000c0000,
+- offset: MTDPART_OFS_APPEND,
++ .size = 0x000c0000,
++ .offset = MTDPART_OFS_APPEND,
+ }, {
+- size: 0x00400000,
+- offset: MTDPART_OFS_APPEND,
++ .size = 0x00400000,
++ .offset = MTDPART_OFS_APPEND,
+ }, {
+- size: MTDPART_SIZ_FULL,
+- offset: MTDPART_OFS_APPEND,
++ .size = MTDPART_SIZ_FULL,
++ .offset = MTDPART_OFS_APPEND,
+ }
+ #endif
+ };
+@@ -389,178 +322,215 @@
+
+ #ifdef CONFIG_SA1100_FRODO
+ /* Frodo has 2 x 16M 28F128J3A flash chips in bank 0: */
+-#define FRODO_FLASH_SIZE 0x02000000
+ static struct mtd_partition frodo_partitions[] =
+ {
+ {
+- name: "Boot Loader",
+- size: 0x00040000,
+- offset: 0x00000000
+- }, {
+- name: "Parameter Block",
+- size: 0x00040000,
+- offset: MTDPART_OFS_APPEND
+- }, {
+- name: "Linux Kernel",
+- size: 0x00100000,
+- offset: MTDPART_OFS_APPEND
+- }, {
+- name: "Ramdisk",
+- size: 0x00680000,
+- offset: MTDPART_OFS_APPEND
+- }, {
+- name: "Flash File System",
+- size: MTDPART_SIZ_FULL,
+- offset: MTDPART_OFS_APPEND
++ .name = "bootloader",
++ .size = 0x00040000,
++ .offset = 0x00000000,
++ .mask_flags = MTD_WRITEABLE
++ }, {
++ .name = "bootloader params",
++ .size = 0x00040000,
++ .offset = MTDPART_OFS_APPEND,
++ .mask_flags = MTD_WRITEABLE
++ }, {
++ .name = "kernel",
++ .size = 0x00100000,
++ .offset = MTDPART_OFS_APPEND,
++ .mask_flags = MTD_WRITEABLE
++ }, {
++ .name = "ramdisk",
++ .size = 0x00400000,
++ .offset = MTDPART_OFS_APPEND,
++ .mask_flags = MTD_WRITEABLE
++ }, {
++ .name = "file system",
++ .size = MTDPART_SIZ_FULL,
++ .offset = MTDPART_OFS_APPEND
+ }
+ };
+ #endif
+
+ #ifdef CONFIG_SA1100_GRAPHICSCLIENT
+-#define GRAPHICSCLIENT_FLASH_SIZE 0x02000000
+ static struct mtd_partition graphicsclient_partitions[] = {
+ {
+- name: "zImage",
+- size: 0x100000,
+- offset: 0,
+- mask_flags: MTD_WRITEABLE, /* force read-only */
+- }, {
+- name: "ramdisk.gz",
+- size: 0x300000,
+- offset: MTDPART_OFS_APPEND,
+- mask_flags: MTD_WRITEABLE, /* force read-only */
+- }, {
+- name: "User FS",
+- size: MTDPART_SIZ_FULL,
+- offset: MTDPART_OFS_APPEND,
++ .name = "zImage",
++ .size = 0x100000,
++ .offset = 0,
++ .mask_flags = MTD_WRITEABLE, /* force read-only */
++ }, {
++ .name = "ramdisk.gz",
++ .size = 0x300000,
++ .offset = MTDPART_OFS_APPEND,
++ .mask_flags = MTD_WRITEABLE, /* force read-only */
++ }, {
++ .name = "User FS",
++ .size = MTDPART_SIZ_FULL,
++ .offset = MTDPART_OFS_APPEND,
+ }
+ };
+ #endif
+
+ #ifdef CONFIG_SA1100_GRAPHICSMASTER
+-#define GRAPHICSMASTER_FLASH_SIZE 0x01000000
+ static struct mtd_partition graphicsmaster_partitions[] = {
+ {
+- name: "zImage",
+- size: 0x100000,
+- offset: 0,
+- mask_flags: MTD_WRITEABLE, /* force read-only */
++ .name = "zImage",
++ .size = 0x100000,
++ .offset = 0,
++ .mask_flags = MTD_WRITEABLE, /* force read-only */
+ },
+ {
+- name: "ramdisk.gz",
+- size: 0x300000,
+- offset: MTDPART_OFS_APPEND,
+- mask_flags: MTD_WRITEABLE, /* force read-only */
++ .name = "ramdisk.gz",
++ .size = 0x300000,
++ .offset = MTDPART_OFS_APPEND,
++ .mask_flags = MTD_WRITEABLE, /* force read-only */
+ },
+ {
+- name: "User FS",
+- size: MTDPART_SIZ_FULL,
+- offset: MTDPART_OFS_APPEND,
++ .name = "User FS",
++ .size = MTDPART_SIZ_FULL,
++ .offset = MTDPART_OFS_APPEND,
+ }
+ };
+ #endif
+
+-#ifdef CONFIG_SA1100_H3600
+-#define H3600_FLASH_SIZE 0x02000000
+-static struct mtd_partition h3600_partitions[] = {
++#ifdef CONFIG_SA1100_H3XXX
++static struct mtd_partition h3xxx_partitions[] = {
+ {
+- name: "H3600 boot firmware",
+- size: 0x00040000,
+- offset: 0,
+- mask_flags: MTD_WRITEABLE, /* force read-only */
+- }, {
+- name: "H3600 kernel",
+- size: 0x00080000,
+- offset: 0x00040000,
++ .name = "H3XXX boot firmware",
++ .size = 0x00040000,
++ .offset = 0,
++ .mask_flags = MTD_WRITEABLE, /* force read-only */
+ }, {
+- name: "H3600 params",
+- size: 0x00040000,
+- offset: 0x000C0000,
++#ifdef CONFIG_MTD_2PARTS_IPAQ
++ .name = "H3XXX root jffs2",
++ .size = MTDPART_SIZ_FULL,
++ .offset = 0x00040000,
++#else
++ .name = "H3XXX kernel",
++ .size = 0x00080000,
++ .offset = 0x00040000,
++ }, {
++ .name = "H3XXX params",
++ .size = 0x00040000,
++ .offset = 0x000C0000,
+ }, {
+ #ifdef CONFIG_JFFS2_FS
+- name: "H3600 root jffs2",
+- size: MTDPART_SIZ_FULL,
+- offset: 0x00100000,
++ .name = "H3XXX root jffs2",
++ .size = MTDPART_SIZ_FULL,
++ .offset = 0x00100000,
+ #else
+- name: "H3600 initrd",
+- size: 0x00100000,
+- offset: 0x00100000,
++ .name = "H3XXX initrd",
++ .size = 0x00100000,
++ .offset = 0x00100000,
+ }, {
+- name: "H3600 root cramfs",
+- size: 0x00300000,
+- offset: 0x00200000,
++ .name = "H3XXX root cramfs",
++ .size = 0x00300000,
++ .offset = 0x00200000,
+ }, {
+- name: "H3600 usr cramfs",
+- size: 0x00800000,
+- offset: 0x00500000,
++ .name = "H3XXX usr cramfs",
++ .size = 0x00800000,
++ .offset = 0x00500000,
+ }, {
+- name: "H3600 usr local",
+- size: MTDPART_SIZ_FULL,
+- offset: 0x00d00000,
++ .name = "H3XXX usr local",
++ .size = MTDPART_SIZ_FULL,
++ .offset = 0x00d00000,
++#endif
+ #endif
+ }
+ };
+
+-static void h3600_set_vpp(struct map_info *map, int vpp)
++static void h3xxx_set_vpp(struct map_info *map, int vpp)
+ {
+ assign_h3600_egpio(IPAQ_EGPIO_VPP_ON, vpp);
+ }
++#else
++#define h3xxx_set_vpp NULL
++#endif
++
++#ifdef CONFIG_SA1100_HACKKIT
++static struct mtd_partition hackkit_partitions[] = {
++ {
++ .name = "BLOB",
++ .size = 0x00040000,
++ .offset = 0x00000000,
++ .mask_flags = MTD_WRITEABLE, /* force read-only */
++ }, {
++ .name = "config",
++ .size = 0x00040000,
++ .offset = MTDPART_OFS_APPEND,
++ }, {
++ .name = "kernel",
++ .size = 0x00100000,
++ .offset = MTDPART_OFS_APPEND,
++ }, {
++ .name = "initrd",
++ .size = 0x00180000,
++ .offset = MTDPART_OFS_APPEND,
++ }, {
++ .name = "rootfs",
++ .size = 0x700000,
++ .offset = MTDPART_OFS_APPEND,
++ }, {
++ .name = "data",
++ .size = MTDPART_SIZ_FULL,
++ .offset = MTDPART_OFS_APPEND,
++ }
++};
+ #endif
+
+ #ifdef CONFIG_SA1100_HUW_WEBPANEL
+-#define HUW_WEBPANEL_FLASH_SIZE 0x01000000
+ static struct mtd_partition huw_webpanel_partitions[] = {
+ {
+- name: "Loader",
+- size: 0x00040000,
+- offset: 0,
+- }, {
+- name: "Sector 1",
+- size: 0x00040000,
+- offset: MTDPART_OFS_APPEND,
++ .name = "Loader",
++ .size = 0x00040000,
++ .offset = 0,
++ }, {
++ .name = "Sector 1",
++ .size = 0x00040000,
++ .offset = MTDPART_OFS_APPEND,
+ }, {
+- size: MTDPART_SIZ_FULL,
+- offset: MTDPART_OFS_APPEND,
++ .size = MTDPART_SIZ_FULL,
++ .offset = MTDPART_OFS_APPEND,
+ }
+ };
+ #endif
+
+ #ifdef CONFIG_SA1100_JORNADA720
+-#define JORNADA720_FLASH_SIZE 0x02000000
+ static struct mtd_partition jornada720_partitions[] = {
+ {
+- name: "JORNADA720 boot firmware",
+- size: 0x00040000,
+- offset: 0,
+- mask_flags: MTD_WRITEABLE, /* force read-only */
++ .name = "JORNADA720 boot firmware",
++ .size = 0x00040000,
++ .offset = 0,
++ .mask_flags = MTD_WRITEABLE, /* force read-only */
+ }, {
+- name: "JORNADA720 kernel",
+- size: 0x000c0000,
+- offset: 0x00040000,
++ .name = "JORNADA720 kernel",
++ .size = 0x000c0000,
++ .offset = 0x00040000,
+ }, {
+- name: "JORNADA720 params",
+- size: 0x00040000,
+- offset: 0x00100000,
++ .name = "JORNADA720 params",
++ .size = 0x00040000,
++ .offset = 0x00100000,
+ }, {
+- name: "JORNADA720 initrd",
+- size: 0x00100000,
+- offset: 0x00140000,
++ .name = "JORNADA720 initrd",
++ .size = 0x00100000,
++ .offset = 0x00140000,
+ }, {
+- name: "JORNADA720 root cramfs",
+- size: 0x00300000,
+- offset: 0x00240000,
++ .name = "JORNADA720 root cramfs",
++ .size = 0x00300000,
++ .offset = 0x00240000,
+ }, {
+- name: "JORNADA720 usr cramfs",
+- size: 0x00800000,
+- offset: 0x00540000,
++ .name = "JORNADA720 usr cramfs",
++ .size = 0x00800000,
++ .offset = 0x00540000,
+ }, {
+- name: "JORNADA720 usr local",
+- size: 0 /* will expand to the end of the flash */
+- offset: 0x00d00000,
++ .name = "JORNADA720 usr local",
++ .size = 0, /* will expand to the end of the flash */
++ .offset = 0x00d00000,
+ }
+ };
+
+-static void jornada720_set_vpp(int vpp)
++static void jornada720_set_vpp(struct map_info *map, int vpp)
+ {
+ if (vpp)
+ PPSR |= 0x80;
+@@ -568,454 +538,811 @@
+ PPSR &= ~0x80;
+ PPDR |= 0x80;
+ }
+-
++#else
++#define jornada720_set_vpp NULL
+ #endif
+
+ #ifdef CONFIG_SA1100_PANGOLIN
+-#define PANGOLIN_FLASH_SIZE 0x04000000
+ static struct mtd_partition pangolin_partitions[] = {
+ {
+- name: "boot firmware",
+- size: 0x00080000,
+- offset: 0x00000000,
+- mask_flags: MTD_WRITEABLE, /* force read-only */
+- }, {
+- name: "kernel",
+- size: 0x00100000,
+- offset: 0x00080000,
+- }, {
+- name: "initrd",
+- size: 0x00280000,
+- offset: 0x00180000,
+- }, {
+- name: "initrd-test",
+- size: 0x03C00000,
+- offset: 0x00400000,
++ .name = "boot firmware",
++ .size = 0x00080000,
++ .offset = 0x00000000,
++ .mask_flags = MTD_WRITEABLE, /* force read-only */
++ }, {
++ .name = "kernel",
++ .size = 0x00100000,
++ .offset = 0x00080000,
++ }, {
++ .name = "initrd",
++ .size = 0x00280000,
++ .offset = 0x00180000,
++ }, {
++ .name = "initrd-test",
++ .size = 0x03C00000,
++ .offset = 0x00400000,
+ }
+ };
+ #endif
+
+ #ifdef CONFIG_SA1100_PT_SYSTEM3
+ /* erase size is 0x40000 == 256k partitions have to have this boundary */
+-#define SYSTEM3_FLASH_SIZE 0x01000000
+ static struct mtd_partition system3_partitions[] = {
+ {
+- name: "BLOB",
+- size: 0x00040000,
+- offset: 0x00000000,
+- mask_flags: MTD_WRITEABLE, /* force read-only */
+- }, {
+- name: "config",
+- size: 0x00040000,
+- offset: MTDPART_OFS_APPEND,
+- }, {
+- name: "kernel",
+- size: 0x00100000,
+- offset: MTDPART_OFS_APPEND,
+- }, {
+- name: "root",
+- size: MTDPART_SIZ_FULL,
+- offset: MTDPART_OFS_APPEND,
++ .name = "BLOB",
++ .size = 0x00040000,
++ .offset = 0x00000000,
++ .mask_flags = MTD_WRITEABLE, /* force read-only */
++ }, {
++ .name = "config",
++ .size = 0x00040000,
++ .offset = MTDPART_OFS_APPEND,
++ }, {
++ .name = "kernel",
++ .size = 0x00100000,
++ .offset = MTDPART_OFS_APPEND,
++ }, {
++ .name = "root",
++ .size = MTDPART_SIZ_FULL,
++ .offset = MTDPART_OFS_APPEND,
+ }
+ };
+ #endif
+
+ #ifdef CONFIG_SA1100_SHANNON
+-#define SHANNON_FLASH_SIZE 0x00400000
+ static struct mtd_partition shannon_partitions[] = {
+ {
+- name: "BLOB boot loader",
+- offset: 0,
+- size: 0x20000
++ .name = "BLOB boot loader",
++ .offset = 0,
++ .size = 0x20000
+ },
+ {
+- name: "kernel",
+- offset: MTDPART_OFS_APPEND,
+- size: 0xe0000
++ .name = "kernel",
++ .offset = MTDPART_OFS_APPEND,
++ .size = 0xe0000
+ },
+ {
+- name: "initrd",
+- offset: MTDPART_OFS_APPEND,
+- size: MTDPART_SIZ_FULL
++ .name = "initrd",
++ .offset = MTDPART_OFS_APPEND,
++ .size = MTDPART_SIZ_FULL
+ }
+ };
+
+ #endif
+
+ #ifdef CONFIG_SA1100_SHERMAN
+-#define SHERMAN_FLASH_SIZE 0x02000000
+ static struct mtd_partition sherman_partitions[] = {
+ {
+- size: 0x50000,
+- offset: 0,
++ .size = 0x50000,
++ .offset = 0,
+ }, {
+- size: 0x70000,
+- offset: MTDPART_OFS_APPEND,
++ .size = 0x70000,
++ .offset = MTDPART_OFS_APPEND,
+ }, {
+- size: 0x600000,
+- offset: MTDPART_OFS_APPEND,
++ .size = 0x600000,
++ .offset = MTDPART_OFS_APPEND,
+ }, {
+- size: 0xA0000,
+- offset: MTDPART_OFS_APPEND,
++ .size = 0xA0000,
++ .offset = MTDPART_OFS_APPEND,
+ }
+ };
+ #endif
+
+ #ifdef CONFIG_SA1100_SIMPAD
+-#define SIMPAD_FLASH_SIZE 0x02000000
+ static struct mtd_partition simpad_partitions[] = {
+ {
+- name: "SIMpad boot firmware",
+- size: 0x00080000,
+- offset: 0,
+- mask_flags: MTD_WRITEABLE, /* force read-only */
+- }, {
+- name: "SIMpad kernel",
+- size: 0x00100000,
+- offset: 0x00080000,
+- }, {
+-#ifdef CONFIG_JFFS2_FS
+- name: "SIMpad root jffs2",
+- size: MTDPART_SIZ_FULL,
+- offset: 0x00180000,
++ .name = "SIMpad boot firmware",
++ .size = 0x00080000,
++ .offset = 0,
++ .mask_flags = MTD_WRITEABLE, /* force read-only */
++ }, {
++ .name = "SIMpad kernel",
++ .size = 0x00100000,
++ .offset = MTDPART_OFS_APPEND,
++ }, {
++#ifdef CONFIG_ROOT_CRAMFS
++ .name = "SIMpad root cramfs",
++ .size =0x00D80000,
++ .offset = MTDPART_OFS_APPEND
++
++ }, {
++ .name = "SIMpad local jffs2",
++ .size = MTDPART_SIZ_FULL,
++ .offset = MTDPART_OFS_APPEND
+ #else
+- name: "SIMpad initrd",
+- size: 0x00300000,
+- offset: 0x00180000,
+- }, {
+- name: "SIMpad root cramfs",
+- size: 0x00300000,
+- offset: 0x00480000,
+- }, {
+- name: "SIMpad usr cramfs",
+- size: 0x005c0000,
+- offset: 0x00780000,
+- }, {
+- name: "SIMpad usr local",
+- size: MTDPART_SIZ_FULL,
+- offset: 0x00d40000,
++ .name = "SIMpad root jffs2",
++ .size = MTDPART_SIZ_FULL,
++ .offset = MTDPART_OFS_APPEND
+ #endif
+ }
+ };
+ #endif /* CONFIG_SA1100_SIMPAD */
+
+ #ifdef CONFIG_SA1100_STORK
+-#define STORK_FLASH_SIZE 0x02000000
+ static struct mtd_partition stork_partitions[] = {
+ {
+- name: "STORK boot firmware",
+- size: 0x00040000,
+- offset: 0,
+- mask_flags: MTD_WRITEABLE, /* force read-only */
+- }, {
+- name: "STORK params",
+- size: 0x00040000,
+- offset: 0x00040000,
+- }, {
+- name: "STORK kernel",
+- size: 0x00100000,
+- offset: 0x00080000,
++ .name = "STORK boot firmware",
++ .size = 0x00040000,
++ .offset = 0,
++ .mask_flags = MTD_WRITEABLE, /* force read-only */
++ }, {
++ .name = "STORK params",
++ .size = 0x00040000,
++ .offset = 0x00040000,
++ }, {
++ .name = "STORK kernel",
++ .size = 0x00100000,
++ .offset = 0x00080000,
+ }, {
+ #ifdef CONFIG_JFFS2_FS
+- name: "STORK root jffs2",
+- offset: 0x00180000,
+- size: MTDPART_SIZ_FULL,
++ .name = "STORK root jffs2",
++ .offset = 0x00180000,
++ .size = MTDPART_SIZ_FULL,
+ #else
+- name: "STORK initrd",
+- size: 0x00100000,
+- offset: 0x00180000,
+- }, {
+- name: "STORK root cramfs",
+- size: 0x00300000,
+- offset: 0x00280000,
+- }, {
+- name: "STORK usr cramfs",
+- size: 0x00800000,
+- offset: 0x00580000,
+- }, {
+- name: "STORK usr local",
+- offset: 0x00d80000,
+- size: MTDPART_SIZ_FULL,
++ .name = "STORK initrd",
++ .size = 0x00100000,
++ .offset = 0x00180000,
++ }, {
++ .name = "STORK root cramfs",
++ .size = 0x00300000,
++ .offset = 0x00280000,
++ }, {
++ .name = "STORK usr cramfs",
++ .size = 0x00800000,
++ .offset = 0x00580000,
++ }, {
++ .name = "STORK usr local",
++ .offset = 0x00d80000,
++ .size = MTDPART_SIZ_FULL,
++#endif
++ }
++};
+ #endif
++
++#ifdef CONFIG_SA1100_TRIZEPS
++static struct mtd_partition trizeps_partitions[] = {
++ {
++ .name = "Bootloader",
++ .size = 0x00100000,
++ .offset = 0,
++ }, {
++ .name = "Kernel",
++ .size = 0x00100000,
++ .offset = MTDPART_OFS_APPEND,
++ }, {
++ .name = "root",
++ .size = MTDPART_SIZ_FULL,
++ .offset = MTDPART_OFS_APPEND,
+ }
+ };
+ #endif
+
+ #ifdef CONFIG_SA1100_YOPY
+-#define YOPY_FLASH_SIZE 0x08000000
+ static struct mtd_partition yopy_partitions[] = {
+ {
+- name: "boot firmware",
+- size: 0x00040000,
+- offset: 0x00000000,
+- mask_flags: MTD_WRITEABLE, /* force read-only */
++ .name = "boot firmware",
++ .size = 0x00040000,
++ .offset = 0x00000000,
++ .mask_flags = MTD_WRITEABLE, /* force read-only */
+ }, {
+- name: "kernel",
+- size: 0x00080000,
+- offset: 0x00080000,
++ .name = "kernel",
++ .size = 0x00080000,
++ .offset = 0x00080000,
+ }, {
+- name: "initrd",
+- size: 0x00300000,
+- offset: 0x00100000,
++ .name = "initrd",
++ .size = 0x00300000,
++ .offset = 0x00100000,
+ }, {
+- name: "root",
+- size: 0x01000000,
+- offset: 0x00400000,
++ .name = "root",
++ .size = 0x01000000,
++ .offset = 0x00400000,
+ }
+ };
+ #endif
+
+-extern int parse_redboot_partitions(struct mtd_info *master, struct mtd_partition **pparts);
+-extern int parse_bootldr_partitions(struct mtd_info *master, struct mtd_partition **pparts);
+-
+-static struct mtd_partition *parsed_parts;
+-static struct mtd_info *mymtd;
+-
+-int __init sa1100_mtd_init(void)
++static int __init sa1100_static_partitions(struct mtd_partition **parts)
+ {
+- struct mtd_partition *parts;
+- int nb_parts = 0, ret;
+- int parsed_nr_parts = 0;
+- const char *part_type;
+- unsigned long base = -1UL;
+-
+- /* Default flash buswidth */
+- sa1100_map.buswidth = (MSC0 & MSC_RBW) ? 2 : 4;
+-
+- /*
+- * Static partition definition selection
+- */
+- part_type = "static";
++ int nb_parts = 0;
+
+ #ifdef CONFIG_SA1100_ADSBITSY
+ if (machine_is_adsbitsy()) {
+- parts = adsbitsy_partitions;
++ *parts = adsbitsy_partitions;
+ nb_parts = ARRAY_SIZE(adsbitsy_partitions);
+- sa1100_map.size = ADSBITSY_FLASH_SIZE;
+- sa1100_map.buswidth = (MSC1 & MSC_RBW) ? 2 : 4;
+ }
+ #endif
+ #ifdef CONFIG_SA1100_ASSABET
+ if (machine_is_assabet()) {
+- parts = assabet_partitions;
++ *parts = assabet_partitions;
+ nb_parts = ARRAY_SIZE(assabet_partitions);
+- sa1100_map.size = ASSABET_FLASH_SIZE;
+ }
+ #endif
+ #ifdef CONFIG_SA1100_BADGE4
+ if (machine_is_badge4()) {
+- parts = badge4_partitions;
++ *parts = badge4_partitions;
+ nb_parts = ARRAY_SIZE(badge4_partitions);
+- sa1100_map.size = BADGE4_FLASH_SIZE;
+ }
+ #endif
+ #ifdef CONFIG_SA1100_CERF
+ if (machine_is_cerf()) {
+- parts = cerf_partitions;
++ *parts = cerf_partitions;
+ nb_parts = ARRAY_SIZE(cerf_partitions);
+- sa1100_map.size = CERF_FLASH_SIZE;
+ }
+ #endif
+ #ifdef CONFIG_SA1100_CONSUS
+ if (machine_is_consus()) {
+- parts = consus_partitions;
++ *parts = consus_partitions;
+ nb_parts = ARRAY_SIZE(consus_partitions);
+- sa1100_map.size = CONSUS_FLASH_SIZE;
+ }
+ #endif
+ #ifdef CONFIG_SA1100_FLEXANET
+ if (machine_is_flexanet()) {
+- parts = flexanet_partitions;
++ *parts = flexanet_partitions;
+ nb_parts = ARRAY_SIZE(flexanet_partitions);
+- sa1100_map.size = FLEXANET_FLASH_SIZE;
+ }
+ #endif
+ #ifdef CONFIG_SA1100_FREEBIRD
+ if (machine_is_freebird()) {
+- parts = freebird_partitions;
++ *parts = freebird_partitions;
+ nb_parts = ARRAY_SIZE(freebird_partitions);
+- sa1100_map.size = FREEBIRD_FLASH_SIZE;
+ }
+ #endif
+ #ifdef CONFIG_SA1100_FRODO
+ if (machine_is_frodo()) {
+- parts = frodo_partitions;
++ *parts = frodo_partitions;
+ nb_parts = ARRAY_SIZE(frodo_partitions);
+- sa1100_map.size = FRODO_FLASH_SIZE;
+- base = 0x00000000;
+ }
+ #endif
+ #ifdef CONFIG_SA1100_GRAPHICSCLIENT
+ if (machine_is_graphicsclient()) {
+- parts = graphicsclient_partitions;
++ *parts = graphicsclient_partitions;
+ nb_parts = ARRAY_SIZE(graphicsclient_partitions);
+- sa1100_map.size = GRAPHICSCLIENT_FLASH_SIZE;
+- sa1100_map.buswidth = (MSC1 & MSC_RBW) ? 2:4;
+ }
+ #endif
+ #ifdef CONFIG_SA1100_GRAPHICSMASTER
+ if (machine_is_graphicsmaster()) {
+- parts = graphicsmaster_partitions;
++ *parts = graphicsmaster_partitions;
+ nb_parts = ARRAY_SIZE(graphicsmaster_partitions);
+- sa1100_map.size = GRAPHICSMASTER_FLASH_SIZE;
+- sa1100_map.buswidth = (MSC1 & MSC_RBW) ? 2:4;
+ }
+ #endif
+-#ifdef CONFIG_SA1100_H3600
+- if (machine_is_h3600()) {
+- parts = h3600_partitions;
+- nb_parts = ARRAY_SIZE(h3600_partitions);
+- sa1100_map.size = H3600_FLASH_SIZE;
+- sa1100_map.set_vpp = h3600_set_vpp;
++#ifdef CONFIG_SA1100_H3XXX
++ if (machine_is_h3xxx()) {
++ *parts = h3xxx_partitions;
++ nb_parts = ARRAY_SIZE(h3xxx_partitions);
++ }
++#endif
++#ifdef CONFIG_SA1100_HACKKIT
++ if (machine_is_hackkit()) {
++ *parts = hackkit_partitions;
++ nb_parts = ARRAY_SIZE(hackkit_partitions);
+ }
+ #endif
+ #ifdef CONFIG_SA1100_HUW_WEBPANEL
+ if (machine_is_huw_webpanel()) {
+- parts = huw_webpanel_partitions;
++ *parts = huw_webpanel_partitions;
+ nb_parts = ARRAY_SIZE(huw_webpanel_partitions);
+- sa1100_map.size = HUW_WEBPANEL_FLASH_SIZE;
+ }
+ #endif
+ #ifdef CONFIG_SA1100_JORNADA720
+ if (machine_is_jornada720()) {
+- parts = jornada720_partitions;
++ *parts = jornada720_partitions;
+ nb_parts = ARRAY_SIZE(jornada720_partitions);
+- sa1100_map.size = JORNADA720_FLASH_SIZE;
+- sa1100_map.set_vpp = jornada720_set_vpp;
+ }
+ #endif
+ #ifdef CONFIG_SA1100_PANGOLIN
+ if (machine_is_pangolin()) {
+- parts = pangolin_partitions;
++ *parts = pangolin_partitions;
+ nb_parts = ARRAY_SIZE(pangolin_partitions);
+- sa1100_map.size = PANGOLIN_FLASH_SIZE;
+ }
+ #endif
+ #ifdef CONFIG_SA1100_PT_SYSTEM3
+ if (machine_is_pt_system3()) {
+- parts = system3_partitions;
++ *parts = system3_partitions;
+ nb_parts = ARRAY_SIZE(system3_partitions);
+- sa1100_map.size = SYSTEM3_FLASH_SIZE;
+ }
+ #endif
+ #ifdef CONFIG_SA1100_SHANNON
+ if (machine_is_shannon()) {
+- parts = shannon_partitions;
++ *parts = shannon_partitions;
+ nb_parts = ARRAY_SIZE(shannon_partitions);
+- sa1100_map.size = SHANNON_FLASH_SIZE;
+ }
+ #endif
+ #ifdef CONFIG_SA1100_SHERMAN
+ if (machine_is_sherman()) {
+- parts = sherman_partitions;
++ *parts = sherman_partitions;
+ nb_parts = ARRAY_SIZE(sherman_partitions);
+- sa1100_map.size = SHERMAN_FLASH_SIZE;
+ }
+ #endif
+ #ifdef CONFIG_SA1100_SIMPAD
+ if (machine_is_simpad()) {
+- parts = simpad_partitions;
++ *parts = simpad_partitions;
+ nb_parts = ARRAY_SIZE(simpad_partitions);
+- sa1100_map.size = SIMPAD_FLASH_SIZE;
+ }
+ #endif
+ #ifdef CONFIG_SA1100_STORK
+ if (machine_is_stork()) {
+- parts = stork_partitions;
++ *parts = stork_partitions;
+ nb_parts = ARRAY_SIZE(stork_partitions);
+- sa1100_map.size = STORK_FLASH_SIZE;
++ }
++#endif
++#ifdef CONFIG_SA1100_TRIZEPS
++ if (machine_is_trizeps()) {
++ *parts = trizeps_partitions;
++ nb_parts = ARRAY_SIZE(trizeps_partitions);
+ }
+ #endif
+ #ifdef CONFIG_SA1100_YOPY
+ if (machine_is_yopy()) {
+- parts = yopy_partitions;
++ *parts = yopy_partitions;
+ nb_parts = ARRAY_SIZE(yopy_partitions);
+- sa1100_map.size = YOPY_FLASH_SIZE;
+ }
+ #endif
+
++ return nb_parts;
++}
++#endif
++
++struct sa_info {
++ unsigned long base;
++ unsigned long size;
++ int width;
++ void *vbase;
++ void (*set_vpp)(struct map_info *, int);
++ struct map_info *map;
++ struct mtd_info *mtd;
++ struct resource *res;
++};
++
++#define NR_SUBMTD 4
++
++static struct sa_info info[NR_SUBMTD];
++
++static int __init sa1100_setup_mtd(struct sa_info *sa, int nr, struct mtd_info **rmtd)
++{
++ struct mtd_info *subdev[nr];
++ struct map_info *maps;
++ int i, found = 0, ret = 0;
++
+ /*
+- * For simple flash devices, use ioremap to map the flash.
++ * Allocate the map_info structs in one go.
+ */
+- if (base != (unsigned long)-1) {
+- if (!request_mem_region(base, sa1100_map.size, "flash"))
+- return -EBUSY;
+- sa1100_map.map_priv_2 = base;
+- sa1100_map.map_priv_1 = (unsigned long)
+- ioremap(base, sa1100_map.size);
++ maps = kmalloc(sizeof(struct map_info) * nr, GFP_KERNEL);
++ if (!maps)
++ return -ENOMEM;
++
++ memset(maps, 0, sizeof(struct map_info) * nr);
++
++ /*
++ * Claim and then map the memory regions.
++ */
++ for (i = 0; i < nr; i++) {
++ if (sa[i].base == (unsigned long)-1)
++ break;
++
++ sa[i].res = request_mem_region(sa[i].base, sa[i].size, "sa1100 flash");
++ if (!sa[i].res) {
++ ret = -EBUSY;
++ break;
++ }
++
++ sa[i].map = maps + i;
++
++ sa[i].vbase = ioremap(sa[i].base, sa[i].size);
++ if (!sa[i].vbase) {
+ ret = -ENOMEM;
+- if (!sa1100_map.map_priv_1)
+- goto out_err;
++ break;
+ }
+
++ sa[i].map->virt = (unsigned long)sa[i].vbase;
++ sa[i].map->phys = sa[i].base;
++ sa[i].map->set_vpp = sa[i].set_vpp;
++ sa[i].map->buswidth = sa[i].width;
++ sa[i].map->size = sa[i].size;
++
++ simple_map_init(sa[i].map);
++
+ /*
+ * Now let's probe for the actual flash. Do it here since
+ * specific machine settings might have been set above.
+ */
+- printk(KERN_NOTICE "SA1100 flash: probing %d-bit flash bus\n", sa1100_map.buswidth*8);
+- mymtd = do_map_probe("cfi_probe", &sa1100_map);
++ sa[i].mtd = do_map_probe("cfi_probe", sa[i].map);
++ if (sa[i].mtd == NULL) {
+ ret = -ENXIO;
+- if (!mymtd)
+- goto out_err;
+- mymtd->module = THIS_MODULE;
++ break;
++ }
++ sa[i].mtd->owner = THIS_MODULE;
++ subdev[i] = sa[i].mtd;
++
++ printk(KERN_INFO "SA1100 flash: CFI device at 0x%08lx, %dMiB, "
++ "%d-bit\n", sa[i].base, sa[i].mtd->size >> 20,
++ sa[i].width * 8);
++ found += 1;
++ }
+
+ /*
+- * Dynamic partition selection stuff (might override the static ones)
++ * ENXIO is special. It means we didn't find a chip when
++ * we probed. We need to tear down the mapping, free the
++ * resource and mark it as such.
+ */
+-#ifdef CONFIG_MTD_REDBOOT_PARTS
+- if (parsed_nr_parts == 0) {
+- int ret = parse_redboot_partitions(mymtd, &parsed_parts);
++ if (ret == -ENXIO) {
++ iounmap(sa[i].vbase);
++ sa[i].vbase = NULL;
++ release_resource(sa[i].res);
++ sa[i].res = NULL;
++ }
+
+- if (ret > 0) {
+- part_type = "RedBoot";
+- parsed_nr_parts = ret;
++ /*
++ * If we found one device, don't bother with concat support.
++ * If we found multiple devices, use concat if we have it
++ * available, otherwise fail.
++ */
++ if (ret == 0 || ret == -ENXIO) {
++ if (found == 1) {
++ *rmtd = subdev[0];
++ ret = 0;
++ } else if (found > 1) {
++ /*
++ * We detected multiple devices. Concatenate
++ * them together.
++ */
++#ifdef CONFIG_MTD_CONCAT
++ *rmtd = mtd_concat_create(subdev, found,
++ "sa1100 flash");
++ if (*rmtd == NULL)
++ ret = -ENXIO;
++#else
++ printk(KERN_ERR "SA1100 flash: multiple devices "
++ "found but MTD concat support disabled.\n");
++ ret = -ENXIO;
++#endif
+ }
+ }
++
++ /*
++ * If we failed, clean up.
++ */
++ if (ret) {
++ do {
++ if (sa[i].mtd)
++ map_destroy(sa[i].mtd);
++ if (sa[i].vbase)
++ iounmap(sa[i].vbase);
++ if (sa[i].res)
++ release_resource(sa[i].res);
++ } while (i--);
++
++ kfree(maps);
++ }
++
++ return ret;
++}
++
++static void __exit sa1100_destroy_mtd(struct sa_info *sa, struct mtd_info *mtd)
++{
++ int i;
++
++ del_mtd_partitions(mtd);
++
++#ifdef CONFIG_MTD_CONCAT
++ if (mtd != sa[0].mtd)
++ mtd_concat_destroy(mtd);
+ #endif
+-#ifdef CONFIG_MTD_CMDLINE_PARTS
+- if (parsed_nr_parts == 0) {
+- int ret = parse_cmdline_partitions(mymtd, &parsed_parts, "sa1100");
+- if (ret > 0) {
+- part_type = "Command Line";
+- parsed_nr_parts = ret;
++
++ for (i = NR_SUBMTD; i >= 0; i--) {
++ if (sa[i].mtd)
++ map_destroy(sa[i].mtd);
++ if (sa[i].vbase)
++ iounmap(sa[i].vbase);
++ if (sa[i].res)
++ release_resource(sa[i].res);
+ }
++ kfree(sa[0].map);
++}
++
++/*
++ * A Thought: can we automatically detect the flash?
++ * - Check to see if the region is busy (yes -> failure)
++ * - Is the MSC setup for flash (no -> failure)
++ * - Probe for flash
++ */
++
++static struct map_info sa1100_probe_map __initdata = {
++ .name = "SA1100-flash",
++};
++
++static void __init sa1100_probe_one_cs(unsigned int msc, unsigned long phys)
++{
++ struct mtd_info *mtd;
++
++ printk(KERN_INFO "* Probing 0x%08lx: MSC = 0x%04x %d bit ",
++ phys, msc & 0xffff, msc & MSC_RBW ? 16 : 32);
++
++ if (check_mem_region(phys, 0x08000000)) {
++ printk("busy\n");
++ return;
+ }
+-#endif
+
+- if (parsed_nr_parts > 0) {
+- parts = parsed_parts;
+- nb_parts = parsed_nr_parts;
++ if ((msc & 3) == 1) {
++ printk("wrong type\n");
++ return;
+ }
+
+- if (nb_parts == 0) {
+- printk(KERN_NOTICE "SA1100 flash: no partition info available, registering whole flash at once\n");
+- add_mtd_device(mymtd);
+- } else {
+- printk(KERN_NOTICE "Using %s partition definition\n", part_type);
+- add_mtd_partitions(mymtd, parts, nb_parts);
++ sa1100_probe_map.buswidth = msc & MSC_RBW ? 2 : 4;
++ sa1100_probe_map.size = SZ_1M;
++ sa1100_probe_map.phys = phys;
++ sa1100_probe_map.virt = (unsigned long)ioremap(phys, SZ_1M);
++ if (sa1100_probe_map.virt == 0)
++ goto fail;
++ simple_map_init(&sa1100_probe_map);
++
++ /* Shame cfi_probe blurts out kernel messages... */
++ mtd = do_map_probe("cfi_probe", &sa1100_probe_map);
++ if (mtd)
++ map_destroy(mtd);
++ iounmap((void *)sa1100_probe_map.virt);
++
++ if (!mtd)
++ goto fail;
++
++ printk("pass\n");
++ return;
++
++ fail:
++ printk("failed\n");
++}
++
++static void __init sa1100_probe_flash(void)
++{
++ printk(KERN_INFO "-- SA11xx Flash probe. Please report results.\n");
++ sa1100_probe_one_cs(MSC0, SA1100_CS0_PHYS);
++ sa1100_probe_one_cs(MSC0 >> 16, SA1100_CS1_PHYS);
++ sa1100_probe_one_cs(MSC1, SA1100_CS2_PHYS);
++ sa1100_probe_one_cs(MSC1 >> 16, SA1100_CS3_PHYS);
++ sa1100_probe_one_cs(MSC2, SA1100_CS4_PHYS);
++ sa1100_probe_one_cs(MSC2 >> 16, SA1100_CS5_PHYS);
++ printk(KERN_INFO "-- SA11xx Flash probe complete.\n");
++}
++
++static int __init sa1100_locate_flash(void)
++{
++ int i, nr = -ENODEV;
++
++ sa1100_probe_flash();
++
++ if (machine_is_adsbitsy()) {
++ info[0].base = SA1100_CS1_PHYS;
++ info[0].size = SZ_32M;
++ nr = 1;
++ }
++ if (machine_is_assabet()) {
++ info[0].base = SA1100_CS0_PHYS;
++ info[0].size = SZ_32M;
++ info[1].base = SA1100_CS1_PHYS; /* neponset */
++ info[1].size = SZ_32M;
++ nr = 2;
++ }
++ if (machine_is_badge4()) {
++ info[0].base = SA1100_CS0_PHYS;
++ info[0].size = SZ_64M;
++ nr = 1;
++ }
++ if (machine_is_cerf()) {
++ info[0].base = SA1100_CS0_PHYS;
++ info[0].size = SZ_32M;
++ nr = 1;
++ }
++ if (machine_is_consus()) {
++ info[0].base = SA1100_CS0_PHYS;
++ info[0].size = SZ_32M;
++ nr = 1;
++ }
++ if (machine_is_flexanet()) {
++ info[0].base = SA1100_CS0_PHYS;
++ info[0].size = SZ_32M;
++ nr = 1;
++ }
++ if (machine_is_freebird()) {
++ info[0].base = SA1100_CS0_PHYS;
++ info[0].size = SZ_32M;
++ nr = 1;
++ }
++ if (machine_is_frodo()) {
++ info[0].base = SA1100_CS0_PHYS;
++ info[0].size = SZ_32M;
++ nr = 1;
++ }
++ if (machine_is_graphicsclient()) {
++ info[0].base = SA1100_CS1_PHYS;
++ info[0].size = SZ_32M;
++ nr = 1;
+ }
+- return 0;
++ if (machine_is_graphicsmaster()) {
++ info[0].base = SA1100_CS1_PHYS;
++ info[0].size = SZ_16M;
++ nr = 1;
++ }
++ if (machine_is_h3xxx()) {
++ info[0].set_vpp = h3xxx_set_vpp;
++ info[0].base = SA1100_CS0_PHYS;
++ info[0].size = SZ_32M;
++ nr = 1;
++ }
++ if (machine_is_huw_webpanel()) {
++ info[0].base = SA1100_CS0_PHYS;
++ info[0].size = SZ_16M;
++ nr = 1;
++ }
++ if (machine_is_itsy()) {
++ info[0].base = SA1100_CS0_PHYS;
++ info[0].size = SZ_32M;
++ nr = 1;
++ }
++ if (machine_is_jornada720()) {
++ info[0].set_vpp = jornada720_set_vpp;
++ info[0].base = SA1100_CS0_PHYS;
++ info[0].size = SZ_32M;
++ nr = 1;
++ }
++ if (machine_is_nanoengine()) {
++ info[0].base = SA1100_CS0_PHYS;
++ info[1].size = SZ_32M;
++ nr = 1;
++ }
++ if (machine_is_pangolin()) {
++ info[0].base = SA1100_CS0_PHYS;
++ info[0].size = SZ_64M;
++ nr = 1;
++ }
++ if (machine_is_pfs168()) {
++ info[0].base = SA1100_CS0_PHYS;
++ info[0].size = SZ_32M;
++ nr = 1;
++ }
++ if (machine_is_pleb()) {
++ info[0].base = SA1100_CS0_PHYS;
++ info[0].size = SZ_4M;
++ info[1].base = SA1100_CS1_PHYS;
++ info[1].size = SZ_4M;
++ nr = 2;
++ }
++ if (machine_is_pt_system3()) {
++ info[0].base = SA1100_CS0_PHYS;
++ info[0].size = SZ_16M;
++ nr = 1;
++ }
++ if (machine_is_shannon()) {
++ info[0].base = SA1100_CS0_PHYS;
++ info[0].size = SZ_4M;
++ nr = 1;
++ }
++ if (machine_is_sherman()) {
++ info[0].base = SA1100_CS0_PHYS;
++ info[0].size = SZ_32M;
++ nr = 1;
++ }
++ if (machine_is_simpad()) {
++ info[0].base = SA1100_CS0_PHYS;
++ info[0].size = SZ_16M;
++ info[1].base = SA1100_CS1_PHYS;
++ info[1].size = SZ_16M;
++ nr = 2;
++ }
++ if (machine_is_stork()) {
++ info[0].base = SA1100_CS0_PHYS;
++ info[0].size = SZ_32M;
++ nr = 1;
++ }
++ if (machine_is_trizeps()) {
++ info[0].base = SA1100_CS0_PHYS;
++ info[0].size = SZ_16M;
++ nr = 1;
++ }
++ if (machine_is_victor()) {
++ info[0].base = SA1100_CS0_PHYS;
++ info[0].size = SZ_2M;
++ nr = 1;
++ }
++ if (machine_is_yopy()) {
++ info[0].base = SA1100_CS0_PHYS;
++ info[0].size = SZ_64M;
++ info[1].base = SA1100_CS1_PHYS;
++ info[1].size = SZ_64M;
++ nr = 2;
++ }
++
++ if (nr < 0)
++ return nr;
+
+- out_err:
+- if (sa1100_map.map_priv_2 != -1) {
+- iounmap((void *)sa1100_map.map_priv_1);
+- release_mem_region(sa1100_map.map_priv_2, sa1100_map.size);
++ /*
++ * Retrieve the buswidth from the MSC registers.
++ * We currently only implement CS0 and CS1 here.
++ */
++ for (i = 0; i < nr; i++) {
++ switch (info[i].base) {
++ default:
++ printk(KERN_WARNING "SA1100 flash: unknown base address "
++ "0x%08lx, assuming CS0\n", info[i].base);
++ case SA1100_CS0_PHYS:
++ info[i].width = (MSC0 & MSC_RBW) ? 2 : 4;
++ break;
++
++ case SA1100_CS1_PHYS:
++ info[i].width = ((MSC0 >> 16) & MSC_RBW) ? 2 : 4;
++ break;
+ }
+- return ret;
++ }
++
++ return nr;
+ }
+
+-static void __exit sa1100_mtd_cleanup(void)
++static struct mtd_partition *parsed_parts;
++const char *part_probes[] = { "cmdlinepart", "RedBoot", NULL };
++
++static void __init sa1100_locate_partitions(struct mtd_info *mtd)
+ {
+- if (mymtd) {
+- del_mtd_partitions(mymtd);
+- map_destroy(mymtd);
+- if (parsed_parts)
+- kfree(parsed_parts);
++ const char *part_type = NULL;
++ int nr_parts = 0;
++
++ do {
++ /*
++ * Partition selection stuff.
++ */
++#ifdef CONFIG_MTD_PARTITIONS
++ nr_parts = parse_mtd_partitions(mtd, part_probes, &parsed_parts, 0);
++ if (nr_parts > 0) {
++ part_type = "dynamic";
++ break;
+ }
+- if (sa1100_map.map_priv_2 != -1) {
+- iounmap((void *)sa1100_map.map_priv_1);
+- release_mem_region(sa1100_map.map_priv_2, sa1100_map.size);
++#endif
++#ifdef CONFIG_MTD_SA1100_STATICMAP
++ nr_parts = sa1100_static_partitions(&parsed_parts);
++ if (nr_parts > 0) {
++ part_type = "static";
++ break;
+ }
++#endif
++ } while (0);
++
++ if (nr_parts == 0) {
++ printk(KERN_NOTICE "SA1100 flash: no partition info "
++ "available, registering whole flash\n");
++ add_mtd_device(mtd);
++ } else {
++ printk(KERN_NOTICE "SA1100 flash: using %s partition "
++ "definition\n", part_type);
++ add_mtd_partitions(mtd, parsed_parts, nr_parts);
++ }
++
++ /* Always succeeds. */
++}
++
++static void __exit sa1100_destroy_partitions(void)
++{
++ if (parsed_parts)
++ kfree(parsed_parts);
++}
++
++static struct mtd_info *mymtd;
++
++static int __init sa1100_mtd_init(void)
++{
++ int ret;
++ int nr;
++
++ nr = sa1100_locate_flash();
++ if (nr < 0)
++ return nr;
++
++ ret = sa1100_setup_mtd(info, nr, &mymtd);
++ if (ret == 0)
++ sa1100_locate_partitions(mymtd);
++
++ return ret;
++}
++
++static void __exit sa1100_mtd_cleanup(void)
++{
++ sa1100_destroy_mtd(info, mymtd);
++ sa1100_destroy_partitions();
+ }
+
+ module_init(sa1100_mtd_init);
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/sbc8240.c linux/drivers/mtd/maps/sbc8240.c
+--- linux-mips-2.4.27/drivers/mtd/maps/sbc8240.c 1970-01-01 01:00:00.000000000 +0100
++++ linux/drivers/mtd/maps/sbc8240.c 2004-11-19 10:25:11.967189456 +0100
+@@ -0,0 +1,417 @@
++/*
++ * Handle mapping of the flash memory access routines on the SBC8240 board.
++ *
++ * Carolyn Smith, Tektronix, Inc.
++ *
++ * This code is GPLed
++ *
++ * $Id: sbc8240.c,v 1.2 2003/09/30 19:37:00 thayne Exp $
++ *
++ */
++
++/*
++ * The SBC8240 has 2 flash banks.
++ * Bank 0 is a 512 KiB AMD AM29F040B; 8 x 64 KiB sectors.
++ * It contains the U-Boot code (7 sectors) and the environment (1 sector).
++ * Bank 1 is 4 x 1 MiB AMD AM29LV800BT; 15 x 64 KiB sectors, 1 x 32 KiB sector,
++ * 2 x 8 KiB sectors, 1 x 16 KiB sectors.
++ * Both parts are JEDEC compatible.
++ */
++
++#include <linux/config.h>
++#include <linux/module.h>
++#include <linux/types.h>
++#include <linux/kernel.h>
++#include <asm/io.h>
++
++#include <linux/mtd/mtd.h>
++#include <linux/mtd/map.h>
++#include <linux/mtd/cfi.h>
++
++#ifdef CONFIG_MTD_PARTITIONS
++#include <linux/mtd/partitions.h>
++#endif
++
++#define DEBUG
++
++#ifdef DEBUG
++# define debugk(fmt,args...) printk(fmt ,##args)
++#else
++# define debugk(fmt,args...)
++#endif
++
++
++#define WINDOW_ADDR0 0xFFF00000 /* 512 KiB */
++#define WINDOW_SIZE0 0x00080000
++#define BUSWIDTH0 1
++
++#define WINDOW_ADDR1 0xFF000000 /* 4 MiB */
++#define WINDOW_SIZE1 0x00400000
++#define BUSWIDTH1 8
++
++#define MSG_PREFIX "sbc8240:" /* prefix for our printk()'s */
++#define MTDID "sbc8240-%d" /* for mtdparts= partitioning */
++
++
++static __u8 sbc8240_read8 (struct map_info *map, unsigned long ofs)
++{
++ return __raw_readb(map->map_priv_1 + ofs);
++}
++
++static __u16 sbc8240_read16 (struct map_info *map, unsigned long ofs)
++{
++ return __raw_readw(map->map_priv_1 + ofs);
++}
++
++static __u32 sbc8240_read32 (struct map_info *map, unsigned long ofs)
++{
++ return __raw_readl(map->map_priv_1 + ofs);
++}
++
++unsigned long long result64;
++
++static __u64 sbc8240_read64 (struct map_info *map, unsigned long ofs)
++{
++ unsigned long flags, msr, saved_msr;
++ volatile long saved_fr[2];
++ volatile unsigned long long result;
++ volatile unsigned long *p;
++
++ save_flags(flags);
++ cli();
++
++ /* turn off floating point unavailable exceptions */
++
++ __asm__ __volatile__ (
++ "mfmsr %0"
++ : "=r" (msr) :);
++
++ saved_msr = msr;
++ msr |= MSR_FP;
++ msr &= ~(MSR_FE0 | MSR_FE1);
++
++ __asm__ __volatile__ (
++ "mtmsr %0\n"
++ "isync\n"
++ : : "r" (msr));
++
++ /* read the data via a floating point register */
++
++ ofs = map->map_priv_1 + ofs;
++ p = (unsigned long *) &result64;
++
++ __asm__ __volatile__ (
++ "lfd 1,0(%1)\n"
++ "stfd 1,0(%0)\n"
++ : : "r" (p), "r" (ofs)
++ );
++
++ /* restore state */
++
++ __asm__ __volatile__ (
++ "mtmsr %0\n"
++ "isync\n"
++ : : "r" (saved_msr));
++
++ restore_flags(flags);
++
++ p = (unsigned long *) &result64;
++ debugk("sbc8240_read64 ofs 0x%x result 0x%08x%08x\n", ofs, *p, *(p+1));
++
++ return result64;
++}
++
++static void sbc8240_copy_from (struct map_info *map,
++ void *to, unsigned long from, ssize_t len)
++{
++ memcpy_fromio (to, (void *) (map->map_priv_1 + from), len);
++}
++
++static void sbc8240_write8 (struct map_info *map, __u8 d, unsigned long adr)
++{
++ __raw_writeb(d, map->map_priv_1 + adr);
++ mb();
++}
++
++static void sbc8240_write16 (struct map_info *map, __u16 d,
++ unsigned long adr)
++{
++ __raw_writew(d, map->map_priv_1 + adr);
++ mb();
++}
++
++static void sbc8240_write32 (struct map_info *map, __u32 d,
++ unsigned long adr)
++{
++ __raw_writel(d, map->map_priv_1 + adr);
++ mb();
++}
++
++static void sbc8240_write64 (struct map_info *map, __u64 data,
++ unsigned long adr)
++{
++ unsigned long long tmp;
++ unsigned long flags, msr, saved_msr, *p;
++ volatile long saved_fr[2];
++
++ save_flags(flags);
++ cli();
++
++ /* turn off floating point unavailable exceptions */
++
++ __asm__ __volatile__ (
++ "mfmsr %0"
++ : "=r" (msr) :);
++
++ saved_msr = msr;
++ msr |= MSR_FP;
++ msr &= ~(MSR_FE0 | MSR_FE1);
++
++ __asm__ __volatile__ (
++ "mtmsr %0\n"
++ "isync\n"
++ : : "r" (msr));
++
++
++ /* write the data via a floating point register */
++
++ tmp = data;
++ p = (unsigned long *) &tmp;
++ adr = map->map_priv_1 + adr;
++ debugk("sbc8240_write64 adr 0x%x data 0x%08x%08x\n", adr, *p, *(p+1));
++
++ __asm__ __volatile__ (
++ "stfd 1,0(%2)\n"
++ "lfd 1,0(%0)\n"
++ "stfd 1,0(%1)\n"
++ "lfd 1,0(%2)\n"
++ : : "r" (p), "r" (adr), "b" (saved_fr)
++ );
++
++ /* restore state */
++
++ __asm__ __volatile__ (
++ "mtmsr %0\n"
++ "isync\n"
++ : : "r" (saved_msr));
++
++ restore_flags(flags);
++}
++
++static void sbc8240_copy_to (struct map_info *map,
++ unsigned long to, const void *from, ssize_t len)
++{
++ memcpy_toio ((void *) (map->map_priv_1 + to), from, len);
++}
++
++static struct map_info sbc8240_map[2] = {
++ {
++ .name = "sbc8240 Flash Bank #0",
++ .size = WINDOW_SIZE0,
++ .buswidth = BUSWIDTH0,
++ .read8 = sbc8240_read8,
++ .read16 = sbc8240_read16,
++ .read32 = sbc8240_read32,
++ .read64 = sbc8240_read64,
++ .copy_from = sbc8240_copy_from,
++ .write8 = sbc8240_write8,
++ .write16 = sbc8240_write16,
++ .write32 = sbc8240_write32,
++ .write64 = sbc8240_write64,
++ .copy_to = sbc8240_copy_to
++ },
++ {
++ .name = "sbc8240 Flash Bank #1",
++ .size = WINDOW_SIZE1,
++ .buswidth = BUSWIDTH1,
++ .read8 = sbc8240_read8,
++ .read16 = sbc8240_read16,
++ .read32 = sbc8240_read32,
++ .read64 = sbc8240_read64,
++ .copy_from = sbc8240_copy_from,
++ .write8 = sbc8240_write8,
++ .write16 = sbc8240_write16,
++ .write32 = sbc8240_write32,
++ .write64 = sbc8240_write64,
++ .copy_to = sbc8240_copy_to
++ }
++};
++
++#define NUM_FLASH_BANKS (sizeof(sbc8240_map) / sizeof(struct map_info))
++
++/*
++ * The following defines the partition layout of SBC8240 boards.
++ *
++ * See include/linux/mtd/partitions.h for definition of the
++ * mtd_partition structure.
++ *
++ * The *_max_flash_size is the maximum possible mapped flash size
++ * which is not necessarily the actual flash size. It must correspond
++ * to the value specified in the mapping definition defined by the
++ * "struct map_desc *_io_desc" for the corresponding machine.
++ */
++
++#ifdef CONFIG_MTD_PARTITIONS
++
++static struct mtd_partition sbc8240_uboot_partitions [] = {
++ /* Bank 0 */
++ {
++ .name = "U-boot", /* U-Boot Firmware */
++ .offset = 0,
++ .size = 0x00070000, /* 7 x 64 KiB sectors */
++ .mask_flags = MTD_WRITEABLE, /* force read-only */
++ },
++ {
++ .name = "environment", /* U-Boot environment */
++ .offset = 0x00070000,
++ .size = 0x00010000, /* 1 x 64 KiB sector */
++ },
++};
++
++static struct mtd_partition sbc8240_fs_partitions [] = {
++ {
++ .name = "jffs", /* JFFS filesystem */
++ .offset = 0,
++ .size = 0x003C0000, /* 4 * 15 * 64KiB */
++ },
++ {
++ .name = "tmp32",
++ .offset = 0x003C0000,
++ .size = 0x00020000, /* 4 * 32KiB */
++ },
++ {
++ .name = "tmp8a",
++ .offset = 0x003E0000,
++ .size = 0x00008000, /* 4 * 8KiB */
++ },
++ {
++ .name = "tmp8b",
++ .offset = 0x003E8000,
++ .size = 0x00008000, /* 4 * 8KiB */
++ },
++ {
++ .name = "tmp16",
++ .offset = 0x003F0000,
++ .size = 0x00010000, /* 4 * 16KiB */
++ }
++};
++
++#define NB_OF(x) (sizeof (x) / sizeof (x[0]))
++
++/* trivial struct to describe partition information */
++struct mtd_part_def
++{
++ int nums;
++ unsigned char *type;
++ struct mtd_partition* mtd_part;
++};
++
++static struct mtd_info *sbc8240_mtd[NUM_FLASH_BANKS];
++static struct mtd_part_def sbc8240_part_banks[NUM_FLASH_BANKS];
++
++
++#endif /* CONFIG_MTD_PARTITIONS */
++
++
++int __init init_sbc8240_mtd (void)
++{
++ static struct _cjs {
++ u_long addr;
++ u_long size;
++ } pt[NUM_FLASH_BANKS] = {
++ {
++ .addr = WINDOW_ADDR0,
++ .size = WINDOW_SIZE0
++ },
++ {
++ .addr = WINDOW_ADDR1,
++ .size = WINDOW_SIZE1
++ },
++ };
++
++ int devicesfound = 0;
++ int i;
++
++ for (i = 0; i < NUM_FLASH_BANKS; i++) {
++ printk (KERN_NOTICE MSG_PREFIX
++ "Probing 0x%08lx at 0x%08lx\n", pt[i].size, pt[i].addr);
++
++ sbc8240_map[i].map_priv_1 =
++ (unsigned long) ioremap (pt[i].addr, pt[i].size);
++ if (!sbc8240_map[i].map_priv_1) {
++ printk (MSG_PREFIX "failed to ioremap\n");
++ return -EIO;
++ }
++
++ sbc8240_mtd[i] = do_map_probe("jedec_probe", &sbc8240_map[i]);
++
++ if (sbc8240_mtd[i]) {
++ sbc8240_mtd[i]->module = THIS_MODULE;
++ devicesfound++;
++ }
++ }
++
++ if (!devicesfound) {
++ printk(KERN_NOTICE MSG_PREFIX
++ "No suppported flash chips found!\n");
++ return -ENXIO;
++ }
++
++#ifdef CONFIG_MTD_PARTITIONS
++ sbc8240_part_banks[0].mtd_part = sbc8240_uboot_partitions;
++ sbc8240_part_banks[0].type = "static image";
++ sbc8240_part_banks[0].nums = NB_OF(sbc8240_uboot_partitions);
++ sbc8240_part_banks[1].mtd_part = sbc8240_fs_partitions;
++ sbc8240_part_banks[1].type = "static file system";
++ sbc8240_part_banks[1].nums = NB_OF(sbc8240_fs_partitions);
++
++ for (i = 0; i < NUM_FLASH_BANKS; i++) {
++
++ if (!sbc8240_mtd[i]) continue;
++ if (sbc8240_part_banks[i].nums == 0) {
++ printk (KERN_NOTICE MSG_PREFIX
++ "No partition info available, registering whole device\n");
++ add_mtd_device(sbc8240_mtd[i]);
++ } else {
++ printk (KERN_NOTICE MSG_PREFIX
++ "Using %s partition definition\n", sbc8240_part_banks[i].mtd_part->name);
++ add_mtd_partitions (sbc8240_mtd[i],
++ sbc8240_part_banks[i].mtd_part,
++ sbc8240_part_banks[i].nums);
++ }
++ }
++#else
++ printk(KERN_NOTICE MSG_PREFIX
++ "Registering %d flash banks at once\n", devicesfound);
++
++ for (i = 0; i < devicesfound; i++) {
++ add_mtd_device(sbc8240_mtd[i]);
++ }
++#endif /* CONFIG_MTD_PARTITIONS */
++
++ return devicesfound == 0 ? -ENXIO : 0;
++}
++
++static void __exit cleanup_sbc8240_mtd (void)
++{
++ int i;
++
++ for (i = 0; i < NUM_FLASH_BANKS; i++) {
++ if (sbc8240_mtd[i]) {
++ del_mtd_device (sbc8240_mtd[i]);
++ map_destroy (sbc8240_mtd[i]);
++ }
++ if (sbc8240_map[i].map_priv_1) {
++ iounmap ((void *) sbc8240_map[i].map_priv_1);
++ sbc8240_map[i].map_priv_1 = 0;
++ }
++ }
++}
++
++module_init (init_sbc8240_mtd);
++module_exit (cleanup_sbc8240_mtd);
++
++MODULE_LICENSE ("GPL");
++MODULE_AUTHOR ("Carolyn Smith <carolyn.smith@tektronix.com>");
++MODULE_DESCRIPTION ("MTD map driver for SBC8240 boards");
++
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/sbc_gxx.c linux/drivers/mtd/maps/sbc_gxx.c
+--- linux-mips-2.4.27/drivers/mtd/maps/sbc_gxx.c 2003-02-26 01:53:50.000000000 +0100
++++ linux/drivers/mtd/maps/sbc_gxx.c 2004-11-19 10:25:11.969189152 +0100
+@@ -17,7 +17,7 @@
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+
+- $Id: sbc_gxx.c,v 1.21 2003/01/24 13:40:14 dwmw2 Exp $
++ $Id: sbc_gxx.c,v 1.26 2003/05/26 08:50:36 dwmw2 Exp $
+
+ The SBC-MediaGX / SBC-GXx has up to 16 MiB of
+ Intel StrataFlash (28F320/28F640) in x8 mode.
+@@ -91,14 +91,14 @@
+ * single flash device into. If the size if zero we use up to the end of the
+ * device. */
+ static struct mtd_partition partition_info[]={
+- { name: "SBC-GXx flash boot partition",
+- offset: 0,
+- size: BOOT_PARTITION_SIZE_KiB*1024 },
+- { name: "SBC-GXx flash data partition",
+- offset: BOOT_PARTITION_SIZE_KiB*1024,
+- size: (DATA_PARTITION_SIZE_KiB)*1024 },
+- { name: "SBC-GXx flash application partition",
+- offset: (BOOT_PARTITION_SIZE_KiB+DATA_PARTITION_SIZE_KiB)*1024 }
++ { .name = "SBC-GXx flash boot partition",
++ .offset = 0,
++ .size = BOOT_PARTITION_SIZE_KiB*1024 },
++ { .name = "SBC-GXx flash data partition",
++ .offset = BOOT_PARTITION_SIZE_KiB*1024,
++ .size = (DATA_PARTITION_SIZE_KiB)*1024 },
++ { .name = "SBC-GXx flash application partition",
++ .offset = (BOOT_PARTITION_SIZE_KiB+DATA_PARTITION_SIZE_KiB)*1024 }
+ };
+
+ #define NUM_PARTITIONS 3
+@@ -203,19 +203,20 @@
+ }
+
+ static struct map_info sbc_gxx_map = {
+- name: "SBC-GXx flash",
+- size: MAX_SIZE_KiB*1024, /* this must be set to a maximum possible amount
++ .name = "SBC-GXx flash",
++ .phys = NO_XIP,
++ .size = MAX_SIZE_KiB*1024, /* this must be set to a maximum possible amount
+ of flash so the cfi probe routines find all
+ the chips */
+- buswidth: 1,
+- read8: sbc_gxx_read8,
+- read16: sbc_gxx_read16,
+- read32: sbc_gxx_read32,
+- copy_from: sbc_gxx_copy_from,
+- write8: sbc_gxx_write8,
+- write16: sbc_gxx_write16,
+- write32: sbc_gxx_write32,
+- copy_to: sbc_gxx_copy_to
++ .buswidth = 1,
++ .read8 = sbc_gxx_read8,
++ .read16 = sbc_gxx_read16,
++ .read32 = sbc_gxx_read32,
++ .copy_from = sbc_gxx_copy_from,
++ .write8 = sbc_gxx_write8,
++ .write16 = sbc_gxx_write16,
++ .write32 = sbc_gxx_write32,
++ .copy_to = sbc_gxx_copy_to
+ };
+
+ /* MTD device for all of the flash. */
+@@ -234,12 +235,6 @@
+
+ int __init init_sbc_gxx(void)
+ {
+- if (check_region(PAGE_IO,PAGE_IO_SIZE) != 0) {
+- printk( KERN_ERR"%s: IO ports 0x%x-0x%x in use\n",
+- sbc_gxx_map.name,
+- PAGE_IO, PAGE_IO+PAGE_IO_SIZE-1 );
+- return -EAGAIN;
+- }
+ iomapadr = (unsigned long)ioremap(WINDOW_START, WINDOW_LENGTH);
+ if (!iomapadr) {
+ printk( KERN_ERR"%s: failed to ioremap memory region\n",
+@@ -247,7 +242,14 @@
+ return -EIO;
+ }
+
+- request_region( PAGE_IO, PAGE_IO_SIZE, "SBC-GXx flash" );
++ if (!request_region( PAGE_IO, PAGE_IO_SIZE, "SBC-GXx flash")) {
++ printk( KERN_ERR"%s: IO ports 0x%x-0x%x in use\n",
++ sbc_gxx_map.name,
++ PAGE_IO, PAGE_IO+PAGE_IO_SIZE-1 );
++ iounmap((void *)iomapadr);
++ return -EAGAIN;
++ }
++
+
+ printk( KERN_INFO"%s: IO:0x%x-0x%x MEM:0x%x-0x%x\n",
+ sbc_gxx_map.name,
+@@ -261,7 +263,7 @@
+ return -ENXIO;
+ }
+
+- all_mtd->module=THIS_MODULE;
++ all_mtd->owner = THIS_MODULE;
+
+ /* Create MTD devices for each partition. */
+ add_mtd_partitions(all_mtd, partition_info, NUM_PARTITIONS );
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/sc520cdp.c linux/drivers/mtd/maps/sc520cdp.c
+--- linux-mips-2.4.27/drivers/mtd/maps/sc520cdp.c 2002-06-27 00:35:50.000000000 +0200
++++ linux/drivers/mtd/maps/sc520cdp.c 2004-11-19 10:25:11.970189000 +0100
+@@ -16,7 +16,7 @@
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ *
+- * $Id: sc520cdp.c,v 1.11 2002/03/08 16:34:35 rkaiser Exp $
++ * $Id: sc520cdp.c,v 1.15 2003/05/21 12:45:20 dwmw2 Exp $
+ *
+ *
+ * The SC520CDP is an evaluation board for the Elan SC520 processor available
+@@ -29,6 +29,7 @@
+ #include <linux/module.h>
+ #include <linux/types.h>
+ #include <linux/kernel.h>
++#include <linux/init.h>
+ #include <asm/io.h>
+ #include <linux/mtd/mtd.h>
+ #include <linux/mtd/map.h>
+@@ -84,88 +85,25 @@
+ #define WINDOW_SIZE_1 0x00800000
+ #define WINDOW_SIZE_2 0x00080000
+
+-static __u8 sc520cdp_read8(struct map_info *map, unsigned long ofs)
+-{
+- return readb(map->map_priv_1 + ofs);
+-}
+-
+-static __u16 sc520cdp_read16(struct map_info *map, unsigned long ofs)
+-{
+- return readw(map->map_priv_1 + ofs);
+-}
+-
+-static __u32 sc520cdp_read32(struct map_info *map, unsigned long ofs)
+-{
+- return readl(map->map_priv_1 + ofs);
+-}
+-
+-static void sc520cdp_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
+-{
+- memcpy_fromio(to, (void *)(map->map_priv_1 + from), len);
+-}
+-
+-static void sc520cdp_write8(struct map_info *map, __u8 d, unsigned long adr)
+-{
+- writeb(d, map->map_priv_1 + adr);
+-}
+-
+-static void sc520cdp_write16(struct map_info *map, __u16 d, unsigned long adr)
+-{
+- writew(d, map->map_priv_1 + adr);
+-}
+-
+-static void sc520cdp_write32(struct map_info *map, __u32 d, unsigned long adr)
+-{
+- writel(d, map->map_priv_1 + adr);
+-}
+-
+-static void sc520cdp_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
+-{
+- memcpy_toio((void *)(map->map_priv_1 + to), from, len);
+-}
+
+ static struct map_info sc520cdp_map[] = {
+ {
+- name: "SC520CDP Flash Bank #0",
+- size: WINDOW_SIZE_0,
+- buswidth: 4,
+- read8: sc520cdp_read8,
+- read16: sc520cdp_read16,
+- read32: sc520cdp_read32,
+- copy_from: sc520cdp_copy_from,
+- write8: sc520cdp_write8,
+- write16: sc520cdp_write16,
+- write32: sc520cdp_write32,
+- copy_to: sc520cdp_copy_to,
+- map_priv_2: WINDOW_ADDR_0
++ .name = "SC520CDP Flash Bank #0",
++ .size = WINDOW_SIZE_0,
++ .buswidth = 4,
++ .phys = WINDOW_ADDR_0
+ },
+ {
+- name: "SC520CDP Flash Bank #1",
+- size: WINDOW_SIZE_1,
+- buswidth: 4,
+- read8: sc520cdp_read8,
+- read16: sc520cdp_read16,
+- read32: sc520cdp_read32,
+- copy_from: sc520cdp_copy_from,
+- write8: sc520cdp_write8,
+- write16: sc520cdp_write16,
+- write32: sc520cdp_write32,
+- copy_to: sc520cdp_copy_to,
+- map_priv_2: WINDOW_ADDR_1
++ .name = "SC520CDP Flash Bank #1",
++ .size = WINDOW_SIZE_1,
++ .buswidth = 4,
++ .phys = WINDOW_ADDR_1
+ },
+ {
+- name: "SC520CDP DIL Flash",
+- size: WINDOW_SIZE_2,
+- buswidth: 1,
+- read8: sc520cdp_read8,
+- read16: sc520cdp_read16,
+- read32: sc520cdp_read32,
+- copy_from: sc520cdp_copy_from,
+- write8: sc520cdp_write8,
+- write16: sc520cdp_write16,
+- write32: sc520cdp_write32,
+- copy_to: sc520cdp_copy_to,
+- map_priv_2: WINDOW_ADDR_2
++ .name = "SC520CDP DIL Flash",
++ .size = WINDOW_SIZE_2,
++ .buswidth = 1,
++ .phys = WINDOW_ADDR_2
+ },
+ };
+
+@@ -255,9 +193,9 @@
+ /* map in SC520's MMCR area */
+ mmcr = (unsigned long *)ioremap_nocache(SC520_MMCR_BASE, SC520_MMCR_EXTENT);
+ if(!mmcr) { /* ioremap_nocache failed: skip the PAR reprogramming */
+- /* force map_priv_2 fields to BIOS defaults: */
++ /* force physical address fields to BIOS defaults: */
+ for(i = 0; i < NUM_FLASH_BANKS; i++)
+- sc520cdp_map[i].map_priv_2 = par_table[i].default_address;
++ sc520cdp_map[i].phys = par_table[i].default_address;
+ return;
+ }
+
+@@ -282,7 +220,7 @@
+ sc520cdp_map[i].name);
+ printk(KERN_NOTICE "Trying default address 0x%lx\n",
+ par_table[i].default_address);
+- sc520cdp_map[i].map_priv_2 = par_table[i].default_address;
++ sc520cdp_map[i].phys = par_table[i].default_address;
+ }
+ }
+ iounmap((void *)mmcr);
+@@ -300,13 +238,18 @@
+ #endif
+
+ for (i = 0; i < NUM_FLASH_BANKS; i++) {
+- printk(KERN_NOTICE "SC520 CDP flash device: %lx at %lx\n", sc520cdp_map[i].size, sc520cdp_map[i].map_priv_2);
+- sc520cdp_map[i].map_priv_1 = (unsigned long)ioremap_nocache(sc520cdp_map[i].map_priv_2, sc520cdp_map[i].size);
++ printk(KERN_NOTICE "SC520 CDP flash device: 0x%lx at 0x%lx\n",
++ sc520cdp_map[i].size, sc520cdp_map[i].phys);
+
+- if (!sc520cdp_map[i].map_priv_1) {
++ sc520cdp_map[i].virt = (unsigned long)ioremap_nocache(sc520cdp_map[i].phys, sc520cdp_map[i].size);
++
++ if (!sc520cdp_map[i].virt) {
+ printk("Failed to ioremap_nocache\n");
+ return -EIO;
+ }
++
++ simple_map_init(&sc520cdp_map[i]);
++
+ mymtd[i] = do_map_probe("cfi_probe", &sc520cdp_map[i]);
+ if(!mymtd[i])
+ mymtd[i] = do_map_probe("jedec_probe", &sc520cdp_map[i]);
+@@ -314,11 +257,11 @@
+ mymtd[i] = do_map_probe("map_rom", &sc520cdp_map[i]);
+
+ if (mymtd[i]) {
+- mymtd[i]->module = THIS_MODULE;
++ mymtd[i]->owner = THIS_MODULE;
+ ++devices_found;
+ }
+ else {
+- iounmap((void *)sc520cdp_map[i].map_priv_1);
++ iounmap((void *)sc520cdp_map[i].virt);
+ }
+ }
+ if(devices_found >= 2) {
+@@ -346,9 +289,9 @@
+ for (i = 0; i < NUM_FLASH_BANKS; i++) {
+ if (mymtd[i])
+ map_destroy(mymtd[i]);
+- if (sc520cdp_map[i].map_priv_1) {
+- iounmap((void *)sc520cdp_map[i].map_priv_1);
+- sc520cdp_map[i].map_priv_1 = 0;
++ if (sc520cdp_map[i].virt) {
++ iounmap((void *)sc520cdp_map[i].virt);
++ sc520cdp_map[i].virt = 0;
+ }
+ }
+ }
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/scb2_flash.c linux/drivers/mtd/maps/scb2_flash.c
+--- linux-mips-2.4.27/drivers/mtd/maps/scb2_flash.c 2003-02-26 01:53:50.000000000 +0100
++++ linux/drivers/mtd/maps/scb2_flash.c 2004-11-19 10:25:11.972188696 +0100
+@@ -1,6 +1,6 @@
+ /*
+ * MTD map driver for BIOS Flash on Intel SCB2 boards
+- * $Id: scb2_flash.c,v 1.2 2003/01/24 13:09:56 dwmw2 Exp $
++ * $Id: scb2_flash.c,v 1.6 2003/05/21 12:45:20 dwmw2 Exp $
+ * Copyright (C) 2002 Sun Microsystems, Inc.
+ * Tim Hockin <thockin@sun.com>
+ *
+@@ -14,7 +14,7 @@
+ * try to request it here, but if it fails, we carry on anyway.
+ *
+ * This is how the chip is attached, so said the schematic:
+- * * a 4 MiB (32 Mb) 16 bit chip
++ * * a 4 MiB (32 Mib) 16 bit chip
+ * * a 1 MiB memory region
+ * * A20 and A21 pulled up
+ * * D8-D15 ignored
+@@ -48,6 +48,7 @@
+ #include <linux/module.h>
+ #include <linux/types.h>
+ #include <linux/kernel.h>
++#include <linux/init.h>
+ #include <asm/io.h>
+ #include <linux/mtd/mtd.h>
+ #include <linux/mtd/map.h>
+@@ -60,65 +61,13 @@
+ #define SCB2_ADDR 0xfff00000
+ #define SCB2_WINDOW 0x00100000
+
+-static __u8 scb2_read8(struct map_info *map, unsigned long ofs)
+-{
+- return __raw_readb(map->map_priv_1 + ofs);
+-}
+-
+-static __u16 scb2_read16(struct map_info *map, unsigned long ofs)
+-{
+- return __raw_readw(map->map_priv_1 + ofs);
+-}
+-
+-static __u32 scb2_read32(struct map_info *map, unsigned long ofs)
+-{
+- return __raw_readl(map->map_priv_1 + ofs);
+-}
+-
+-static void scb2_copy_from(struct map_info *map, void *to,
+- unsigned long from, ssize_t len)
+-{
+- memcpy_fromio(to, map->map_priv_1 + from, len);
+-}
+-
+-static void scb2_write8(struct map_info *map, __u8 d, unsigned long adr)
+-{
+- __raw_writeb(d, map->map_priv_1 + adr);
+- mb();
+-}
+-
+-static void scb2_write16(struct map_info *map, __u16 d, unsigned long adr)
+-{
+- __raw_writew(d, map->map_priv_1 + adr);
+- mb();
+-}
+-
+-static void scb2_write32(struct map_info *map, __u32 d, unsigned long adr)
+-{
+- __raw_writel(d, map->map_priv_1 + adr);
+- mb();
+-}
+-
+-static void scb2_copy_to(struct map_info *map, unsigned long to,
+- const void *from, ssize_t len)
+-{
+- memcpy_toio(map->map_priv_1 + to, from, len);
+-}
+
+ static void *scb2_ioaddr;
+ static struct mtd_info *scb2_mtd;
+ struct map_info scb2_map = {
+- name: "SCB2 BIOS Flash",
+- size: 0,
+- buswidth: 1,
+- read8: scb2_read8,
+- read16: scb2_read16,
+- read32: scb2_read32,
+- copy_from: scb2_copy_from,
+- write8: scb2_write8,
+- write16: scb2_write16,
+- write32: scb2_write32,
+- copy_to: scb2_copy_to,
++ .name = "SCB2 BIOS Flash",
++ .size = 0,
++ .buswidth = 1,
+ };
+ static int region_fail;
+
+@@ -137,6 +86,8 @@
+ return -1;
+ }
+
++ /* I wasn't here. I didn't see. dwmw2. */
++
+ /* the chip is sometimes bigger than the map - what a waste */
+ mtd->size = map->size;
+
+@@ -211,9 +162,12 @@
+ return -ENOMEM;
+ }
+
+- scb2_map.map_priv_1 = (unsigned long)scb2_ioaddr;
++ scb2_map.phys = SCB2_ADDR;
++ scb2_map.virt = (unsigned long)scb2_ioaddr;
+ scb2_map.size = SCB2_WINDOW;
+
++ simple_map_init(&scb2_map);
++
+ /* try to find a chip */
+ scb2_mtd = do_map_probe("cfi_probe", &scb2_map);
+
+@@ -225,7 +179,7 @@
+ return -ENODEV;
+ }
+
+- scb2_mtd->module = THIS_MODULE;
++ scb2_mtd->owner = THIS_MODULE;
+ if (scb2_fixup_mtd(scb2_mtd) < 0) {
+ del_mtd_device(scb2_mtd);
+ map_destroy(scb2_mtd);
+@@ -235,7 +189,7 @@
+ return -ENODEV;
+ }
+
+- printk(KERN_NOTICE MODNAME ": chip size %x at offset %x\n",
++ printk(KERN_NOTICE MODNAME ": chip size 0x%x at offset 0x%x\n",
+ scb2_mtd->size, SCB2_WINDOW - scb2_mtd->size);
+
+ add_mtd_device(scb2_mtd);
+@@ -266,19 +220,19 @@
+
+ static struct pci_device_id scb2_flash_pci_ids[] __devinitdata = {
+ {
+- vendor: PCI_VENDOR_ID_SERVERWORKS,
+- device: PCI_DEVICE_ID_SERVERWORKS_CSB5,
+- subvendor: PCI_ANY_ID,
+- subdevice: PCI_ANY_ID
++ .vendor = PCI_VENDOR_ID_SERVERWORKS,
++ .device = PCI_DEVICE_ID_SERVERWORKS_CSB5,
++ .subvendor = PCI_ANY_ID,
++ .subdevice = PCI_ANY_ID
+ },
+ { 0, }
+ };
+
+ static struct pci_driver scb2_flash_driver = {
+- name: "Intel SCB2 BIOS Flash",
+- id_table: scb2_flash_pci_ids,
+- probe: scb2_flash_probe,
+- remove: __devexit_p(scb2_flash_remove),
++ .name = "Intel SCB2 BIOS Flash",
++ .id_table = scb2_flash_pci_ids,
++ .probe = scb2_flash_probe,
++ .remove = __devexit_p(scb2_flash_remove),
+ };
+
+ static int __init
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/scx200_docflash.c linux/drivers/mtd/maps/scx200_docflash.c
+--- linux-mips-2.4.27/drivers/mtd/maps/scx200_docflash.c 2003-02-26 01:53:50.000000000 +0100
++++ linux/drivers/mtd/maps/scx200_docflash.c 2004-11-19 10:25:11.973188544 +0100
+@@ -2,7 +2,7 @@
+
+ Copyright (c) 2001,2002 Christer Weinigel <wingel@nano-system.com>
+
+- $Id: scx200_docflash.c,v 1.1 2003/01/24 13:20:40 dwmw2 Exp $
++ $Id: scx200_docflash.c,v 1.5 2003/05/21 12:45:20 dwmw2 Exp $
+
+ National Semiconductor SCx200 flash mapped with DOCCS
+ */
+@@ -11,6 +11,7 @@
+ #include <linux/config.h>
+ #include <linux/types.h>
+ #include <linux/kernel.h>
++#include <linux/init.h>
+ #include <asm/io.h>
+ #include <linux/mtd/mtd.h>
+ #include <linux/mtd/map.h>
+@@ -75,46 +76,9 @@
+ #define NUM_PARTITIONS (sizeof(partition_info)/sizeof(partition_info[0]))
+ #endif
+
+-static __u8 scx200_docflash_read8(struct map_info *map, unsigned long ofs)
+-{
+- return __raw_readb(map->map_priv_1 + ofs);
+-}
+-
+-static __u16 scx200_docflash_read16(struct map_info *map, unsigned long ofs)
+-{
+- return __raw_readw(map->map_priv_1 + ofs);
+-}
+-
+-static void scx200_docflash_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
+-{
+- memcpy_fromio(to, map->map_priv_1 + from, len);
+-}
+-
+-static void scx200_docflash_write8(struct map_info *map, __u8 d, unsigned long adr)
+-{
+- __raw_writeb(d, map->map_priv_1 + adr);
+- mb();
+-}
+-
+-static void scx200_docflash_write16(struct map_info *map, __u16 d, unsigned long adr)
+-{
+- __raw_writew(d, map->map_priv_1 + adr);
+- mb();
+-}
+-
+-static void scx200_docflash_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
+-{
+- memcpy_toio(map->map_priv_1 + to, from, len);
+-}
+
+ static struct map_info scx200_docflash_map = {
+ .name = "NatSemi SCx200 DOCCS Flash",
+- .read8 = scx200_docflash_read8,
+- .read16 = scx200_docflash_read16,
+- .copy_from = scx200_docflash_copy_from,
+- .write8 = scx200_docflash_write8,
+- .write16 = scx200_docflash_write16,
+- .copy_to = scx200_docflash_copy_to
+ };
+
+ int __init init_scx200_docflash(void)
+@@ -213,8 +177,11 @@
+ else
+ scx200_docflash_map.buswidth = 2;
+
+- scx200_docflash_map.map_priv_1 = (unsigned long)ioremap(docmem.start, scx200_docflash_map.size);
+- if (!scx200_docflash_map.map_priv_1) {
++ simple_map_init(&scx200_docflash_map);
++
++ scx200_docflash_map.phys = docmem.start;
++ scx200_docflash_map.virt = (unsigned long)ioremap(docmem.start, scx200_docflash_map.size);
++ if (!scx200_docflash_map.virt) {
+ printk(KERN_ERR NAME ": failed to ioremap the flash\n");
+ release_resource(&docmem);
+ return -EIO;
+@@ -223,7 +190,7 @@
+ mymtd = do_map_probe(flashtype, &scx200_docflash_map);
+ if (!mymtd) {
+ printk(KERN_ERR NAME ": unable to detect flash\n");
+- iounmap((void *)scx200_docflash_map.map_priv_1);
++ iounmap((void *)scx200_docflash_map.virt);
+ release_resource(&docmem);
+ return -ENXIO;
+ }
+@@ -231,7 +198,7 @@
+ if (size < mymtd->size)
+ printk(KERN_WARNING NAME ": warning, flash mapping is smaller than flash size\n");
+
+- mymtd->module = THIS_MODULE;
++ mymtd->owner = THIS_MODULE;
+
+ #if PARTITION
+ partition_info[3].offset = mymtd->size-partition_info[3].size;
+@@ -253,8 +220,8 @@
+ #endif
+ map_destroy(mymtd);
+ }
+- if (scx200_docflash_map.map_priv_1) {
+- iounmap((void *)scx200_docflash_map.map_priv_1);
++ if (scx200_docflash_map.virt) {
++ iounmap((void *)scx200_docflash_map.virt);
+ release_resource(&docmem);
+ }
+ }
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/solutionengine.c linux/drivers/mtd/maps/solutionengine.c
+--- linux-mips-2.4.27/drivers/mtd/maps/solutionengine.c 2002-06-27 00:35:50.000000000 +0200
++++ linux/drivers/mtd/maps/solutionengine.c 2004-11-19 10:25:11.975188240 +0100
+@@ -1,5 +1,5 @@
+ /*
+- * $Id: solutionengine.c,v 1.4 2001/11/07 01:20:59 jsiegel Exp $
++ * $Id: solutionengine.c,v 1.10 2003/05/21 12:45:20 dwmw2 Exp $
+ *
+ * Flash and EPROM on Hitachi Solution Engine and similar boards.
+ *
+@@ -11,6 +11,7 @@
+ #include <linux/module.h>
+ #include <linux/types.h>
+ #include <linux/kernel.h>
++#include <linux/init.h>
+ #include <asm/io.h>
+ #include <linux/mtd/mtd.h>
+ #include <linux/mtd/map.h>
+@@ -18,60 +19,39 @@
+ #include <linux/config.h>
+
+
+-extern int parse_redboot_partitions(struct mtd_info *master, struct mtd_partition **pparts);
+-
+-__u32 soleng_read32(struct map_info *map, unsigned long ofs)
+-{
+- return __raw_readl(map->map_priv_1 + ofs);
+-}
+-
+-void soleng_write32(struct map_info *map, __u32 d, unsigned long adr)
+-{
+- __raw_writel(d, map->map_priv_1 + adr);
+- mb();
+-}
+-
+-void soleng_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
+-{
+- memcpy_fromio(to, map->map_priv_1 + from, len);
+-}
+-
+-
+ static struct mtd_info *flash_mtd;
+ static struct mtd_info *eprom_mtd;
+
+ static struct mtd_partition *parsed_parts;
+
+ struct map_info soleng_eprom_map = {
+- name: "Solution Engine EPROM",
+- size: 0x400000,
+- buswidth: 4,
+- copy_from: soleng_copy_from,
++ .name = "Solution Engine EPROM",
++ .size = 0x400000,
++ .buswidth = 4,
+ };
+
+ struct map_info soleng_flash_map = {
+- name: "Solution Engine FLASH",
+- size: 0x400000,
+- buswidth: 4,
+- read32: soleng_read32,
+- copy_from: soleng_copy_from,
+- write32: soleng_write32,
++ .name = "Solution Engine FLASH",
++ .size = 0x400000,
++ .buswidth = 4,
+ };
+
++static const char *probes[] = { "RedBoot", "cmdlinepart", NULL };
++
+ #ifdef CONFIG_MTD_SUPERH_RESERVE
+ static struct mtd_partition superh_se_partitions[] = {
+ /* Reserved for boot code, read-only */
+ {
+- name: "flash_boot",
+- offset: 0x00000000,
+- size: CONFIG_MTD_SUPERH_RESERVE,
+- mask_flags: MTD_WRITEABLE,
++ .name = "flash_boot",
++ .offset = 0x00000000,
++ .size = CONFIG_MTD_SUPERH_RESERVE,
++ .mask_flags = MTD_WRITEABLE,
+ },
+ /* All else is writable (e.g. JFFS) */
+ {
+- name: "Flash FS",
+- offset: MTDPART_OFS_NXTBLK,
+- size: MTDPART_SIZ_FULL,
++ .name = "Flash FS",
++ .offset = MTDPART_OFS_NXTBLK,
++ .size = MTDPART_SIZ_FULL,
+ }
+ };
+ #endif /* CONFIG_MTD_SUPERH_RESERVE */
+@@ -81,16 +61,22 @@
+ int nr_parts = 0;
+
+ /* First probe at offset 0 */
+- soleng_flash_map.map_priv_1 = P2SEGADDR(0);
+- soleng_eprom_map.map_priv_1 = P1SEGADDR(0x01000000);
++ soleng_flash_map.phys = 0;
++ soleng_flash_map.virt = P2SEGADDR(0);
++ soleng_eprom_map.phys = 0x01000000;
++ soleng_eprom_map.virt = P1SEGADDR(0x01000000);
++ simple_map_init(&soleng_eprom_map);
++ simple_map_init(&soleng_flash_map);
+
+ printk(KERN_NOTICE "Probing for flash chips at 0x00000000:\n");
+ flash_mtd = do_map_probe("cfi_probe", &soleng_flash_map);
+ if (!flash_mtd) {
+ /* Not there. Try swapping */
+ printk(KERN_NOTICE "Probing for flash chips at 0x01000000:\n");
+- soleng_flash_map.map_priv_1 = P2SEGADDR(0x01000000);
+- soleng_eprom_map.map_priv_1 = P1SEGADDR(0);
++ soleng_flash_map.phys = 0x01000000;
++ soleng_flash_map.virt = P2SEGADDR(0x01000000);
++ soleng_eprom_map.phys = 0;
++ soleng_eprom_map.virt = P1SEGADDR(0);
+ flash_mtd = do_map_probe("cfi_probe", &soleng_flash_map);
+ if (!flash_mtd) {
+ /* Eep. */
+@@ -99,25 +85,20 @@
+ }
+ }
+ printk(KERN_NOTICE "Solution Engine: Flash at 0x%08lx, EPROM at 0x%08lx\n",
+- soleng_flash_map.map_priv_1 & 0x1fffffff,
+- soleng_eprom_map.map_priv_1 & 0x1fffffff);
+- flash_mtd->module = THIS_MODULE;
++ soleng_flash_map.phys & 0x1fffffff,
++ soleng_eprom_map.phys & 0x1fffffff);
++ flash_mtd->owner = THIS_MODULE;
+
+ eprom_mtd = do_map_probe("map_rom", &soleng_eprom_map);
+ if (eprom_mtd) {
+- eprom_mtd->module = THIS_MODULE;
++ eprom_mtd->owner = THIS_MODULE;
+ add_mtd_device(eprom_mtd);
+ }
+
+-#ifdef CONFIG_MTD_REDBOOT_PARTS
+- nr_parts = parse_redboot_partitions(flash_mtd, &parsed_parts);
+- if (nr_parts > 0)
+- printk(KERN_NOTICE "Found RedBoot partition table.\n");
+- else if (nr_parts < 0)
+- printk(KERN_NOTICE "Error looking for RedBoot partitions.\n");
+-#endif /* CONFIG_MTD_REDBOOT_PARTS */
++ nr_parts = parse_mtd_partitions(flash_mtd, probes, &parsed_parts, 0);
++
+ #if CONFIG_MTD_SUPERH_RESERVE
+- if (nr_parts == 0) {
++ if (nr_parts <= 0) {
+ printk(KERN_NOTICE "Using configured partition at 0x%08x.\n",
+ CONFIG_MTD_SUPERH_RESERVE);
+ parsed_parts = superh_se_partitions;
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/sun_uflash.c linux/drivers/mtd/maps/sun_uflash.c
+--- linux-mips-2.4.27/drivers/mtd/maps/sun_uflash.c 2001-11-05 21:15:52.000000000 +0100
++++ linux/drivers/mtd/maps/sun_uflash.c 2004-11-19 10:25:11.976188088 +0100
+@@ -1,4 +1,4 @@
+-/* $Id: sun_uflash.c,v 1.4 2001/10/02 15:05:14 dwmw2 Exp $
++/* $Id: sun_uflash.c,v 1.7 2003/05/20 20:59:32 dwmw2 Exp $
+ *
+ * sun_uflash - Driver implementation for user-programmable flash
+ * present on many Sun Microsystems SME boardsets.
+@@ -48,60 +48,11 @@
+ struct list_head list;
+ };
+
+-__u8 uflash_read8(struct map_info *map, unsigned long ofs)
+-{
+- return(__raw_readb(map->map_priv_1 + ofs));
+-}
+-
+-__u16 uflash_read16(struct map_info *map, unsigned long ofs)
+-{
+- return(__raw_readw(map->map_priv_1 + ofs));
+-}
+-
+-__u32 uflash_read32(struct map_info *map, unsigned long ofs)
+-{
+- return(__raw_readl(map->map_priv_1 + ofs));
+-}
+-
+-void uflash_copy_from(struct map_info *map, void *to, unsigned long from,
+- ssize_t len)
+-{
+- memcpy_fromio(to, map->map_priv_1 + from, len);
+-}
+-
+-void uflash_write8(struct map_info *map, __u8 d, unsigned long adr)
+-{
+- __raw_writeb(d, map->map_priv_1 + adr);
+-}
+-
+-void uflash_write16(struct map_info *map, __u16 d, unsigned long adr)
+-{
+- __raw_writew(d, map->map_priv_1 + adr);
+-}
+-
+-void uflash_write32(struct map_info *map, __u32 d, unsigned long adr)
+-{
+- __raw_writel(d, map->map_priv_1 + adr);
+-}
+-
+-void uflash_copy_to(struct map_info *map, unsigned long to, const void *from,
+- ssize_t len)
+-{
+- memcpy_toio(map->map_priv_1 + to, from, len);
+-}
+
+ struct map_info uflash_map_templ = {
+- name: "SUNW,???-????",
+- size: UFLASH_WINDOW_SIZE,
+- buswidth: UFLASH_BUSWIDTH,
+- read8: uflash_read8,
+- read16: uflash_read16,
+- read32: uflash_read32,
+- copy_from: uflash_copy_from,
+- write8: uflash_write8,
+- write16: uflash_write16,
+- write32: uflash_write32,
+- copy_to: uflash_copy_to
++ .name = "SUNW,???-????",
++ .size = UFLASH_WINDOW_SIZE,
++ .buswidth = UFLASH_BUSWIDTH,
+ };
+
+ int uflash_devinit(struct linux_ebus_device* edev)
+@@ -145,20 +96,22 @@
+ if(0 != pdev->name && 0 < strlen(pdev->name)) {
+ pdev->map.name = pdev->name;
+ }
+-
+- pdev->map.map_priv_1 =
++ pdev->phys = edev->resource[0].start;
++ pdev->virt =
+ (unsigned long)ioremap_nocache(edev->resource[0].start, pdev->map.size);
+- if(0 == pdev->map.map_priv_1) {
++ if(0 == pdev->map.virt) {
+ printk("%s: failed to map device\n", __FUNCTION__);
+ kfree(pdev->name);
+ kfree(pdev);
+ return(-1);
+ }
+
++ simple_map_init(&pdev->map);
++
+ /* MTD registration */
+ pdev->mtd = do_map_probe("cfi_probe", &pdev->map);
+ if(0 == pdev->mtd) {
+- iounmap((void *)pdev->map.map_priv_1);
++ iounmap((void *)pdev->map.virt);
+ kfree(pdev->name);
+ kfree(pdev);
+ return(-ENXIO);
+@@ -166,7 +119,7 @@
+
+ list_add(&pdev->list, &device_list);
+
+- pdev->mtd->module = THIS_MODULE;
++ pdev->mtd->owner = THIS_MODULE;
+
+ add_mtd_device(pdev->mtd);
+ return(0);
+@@ -211,9 +164,9 @@
+ del_mtd_device(udev->mtd);
+ map_destroy(udev->mtd);
+ }
+- if(0 != udev->map.map_priv_1) {
+- iounmap((void*)udev->map.map_priv_1);
+- udev->map.map_priv_1 = 0;
++ if(0 != udev->map.virt) {
++ iounmap((void*)udev->map.virt);
++ udev->map.virt = 0;
+ }
+ if(0 != udev->name) {
+ kfree(udev->name);
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/tqm8xxl.c linux/drivers/mtd/maps/tqm8xxl.c
+--- linux-mips-2.4.27/drivers/mtd/maps/tqm8xxl.c 2003-02-26 01:53:50.000000000 +0100
++++ linux/drivers/mtd/maps/tqm8xxl.c 2004-11-19 10:25:11.978187784 +0100
+@@ -2,7 +2,7 @@
+ * Handle mapping of the flash memory access routines
+ * on TQM8xxL based devices.
+ *
+- * $Id: tqm8xxl.c,v 1.4 2002/06/20 13:41:20 mag Exp $
++ * $Id: tqm8xxl.c,v 1.9 2003/06/23 11:48:18 dwmw2 Exp $
+ *
+ * based on rpxlite.c
+ *
+@@ -26,6 +26,7 @@
+ #include <linux/module.h>
+ #include <linux/types.h>
+ #include <linux/kernel.h>
++#include <linux/init.h>
+ #include <asm/io.h>
+
+ #include <linux/mtd/mtd.h>
+@@ -51,46 +52,6 @@
+ static unsigned long num_banks;
+ static unsigned long start_scan_addr;
+
+-__u8 tqm8xxl_read8(struct map_info *map, unsigned long ofs)
+-{
+- return *((__u8 *)(map->map_priv_1 + ofs));
+-}
+-
+-__u16 tqm8xxl_read16(struct map_info *map, unsigned long ofs)
+-{
+- return *((__u16 *)(map->map_priv_1 + ofs));
+-}
+-
+-__u32 tqm8xxl_read32(struct map_info *map, unsigned long ofs)
+-{
+- return *((__u32 *)(map->map_priv_1 + ofs));
+-}
+-
+-void tqm8xxl_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
+-{
+- memcpy_fromio(to, (void *)(map->map_priv_1 + from), len);
+-}
+-
+-void tqm8xxl_write8(struct map_info *map, __u8 d, unsigned long adr)
+-{
+- *((__u8 *)(map->map_priv_1 + adr)) = d;
+-}
+-
+-void tqm8xxl_write16(struct map_info *map, __u16 d, unsigned long adr)
+-{
+- *((__u16 *)( map->map_priv_1 + adr)) = d;
+-}
+-
+-void tqm8xxl_write32(struct map_info *map, __u32 d, unsigned long adr)
+-{
+- *((__u32 *)(map->map_priv_1 + adr)) = d;
+-}
+-
+-void tqm8xxl_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
+-{
+- memcpy_toio((void *)(map->map_priv_1 + to), from, len);
+-}
+-
+ /*
+ * Here are partition information for all known TQM8xxL series devices.
+ * See include/linux/mtd/partitions.h for definition of the mtd_partition
+@@ -107,50 +68,48 @@
+ static unsigned long tqm8xxl_max_flash_size = 0x00800000;
+
+ /* partition definition for first flash bank
+- * also ref. to "drivers\char\flash_config.c"
++ * (cf. "drivers/char/flash_config.c")
+ */
+ static struct mtd_partition tqm8xxl_partitions[] = {
+ {
+- name: "ppcboot",
+- offset: 0x00000000,
+- size: 0x00020000, /* 128KB */
+- mask_flags: MTD_WRITEABLE, /* force read-only */
++ .name = "ppcboot",
++ .offset = 0x00000000,
++ .size = 0x00020000, /* 128KB */
++ .mask_flags = MTD_WRITEABLE, /* force read-only */
+ },
+ {
+- name: "kernel", /* default kernel image */
+- offset: 0x00020000,
+- size: 0x000e0000,
+- mask_flags: MTD_WRITEABLE, /* force read-only */
++ .name = "kernel", /* default kernel image */
++ .offset = 0x00020000,
++ .size = 0x000e0000,
++ .mask_flags = MTD_WRITEABLE, /* force read-only */
+ },
+ {
+- name: "user",
+- offset: 0x00100000,
+- size: 0x00100000,
++ .name = "user",
++ .offset = 0x00100000,
++ .size = 0x00100000,
+ },
+ {
+- name: "initrd",
+- offset: 0x00200000,
+- size: 0x00200000,
++ .name = "initrd",
++ .offset = 0x00200000,
++ .size = 0x00200000,
+ }
+ };
+-/* partition definition for second flahs bank */
++/* partition definition for second flash bank */
+ static struct mtd_partition tqm8xxl_fs_partitions[] = {
+ {
+- name: "cramfs",
+- offset: 0x00000000,
+- size: 0x00200000,
++ .name = "cramfs",
++ .offset = 0x00000000,
++ .size = 0x00200000,
+ },
+ {
+- name: "jffs",
+- offset: 0x00200000,
+- size: 0x00200000,
+- //size: MTDPART_SIZ_FULL,
++ .name = "jffs",
++ .offset = 0x00200000,
++ .size = 0x00200000,
++ .//size = MTDPART_SIZ_FULL,
+ }
+ };
+ #endif
+
+-#define NB_OF(x) (sizeof(x)/sizeof(x[0]))
+-
+ int __init init_tqm_mtd(void)
+ {
+ int idx = 0, ret = 0;
+@@ -160,67 +119,73 @@
+
+ flash_addr = bd->bi_flashstart;
+ flash_size = bd->bi_flashsize;
+- //request maximum flash size address spzce
++
++ //request maximum flash size address space
+ start_scan_addr = (unsigned long)ioremap(flash_addr, flash_size);
+ if (!start_scan_addr) {
+- //printk("%s:Failed to ioremap address:0x%x\n", __FUNCTION__, FLASH_ADDR);
+- printk("%s:Failed to ioremap address:0x%x\n", __FUNCTION__, flash_addr);
++ printk(KERN_WARNING "%s:Failed to ioremap address:0x%x\n", __FUNCTION__, flash_addr);
+ return -EIO;
+ }
+- for(idx = 0 ; idx < FLASH_BANK_MAX ; idx++)
+- {
++
++ for (idx = 0 ; idx < FLASH_BANK_MAX ; idx++) {
+ if(mtd_size >= flash_size)
+ break;
+
+- printk("%s: chip probing count %d\n", __FUNCTION__, idx);
++ printk(KERN_INFO "%s: chip probing count %d\n", __FUNCTION__, idx);
+
+ map_banks[idx] = (struct map_info *)kmalloc(sizeof(struct map_info), GFP_KERNEL);
+- if(map_banks[idx] == NULL)
+- {
+- //return -ENOMEM;
++ if(map_banks[idx] == NULL) {
+ ret = -ENOMEM;
++ /* FIXME: What if some MTD devices were probed already? */
+ goto error_mem;
+ }
++
+ memset((void *)map_banks[idx], 0, sizeof(struct map_info));
+ map_banks[idx]->name = (char *)kmalloc(16, GFP_KERNEL);
+- if(map_banks[idx]->name == NULL)
+- {
+- //return -ENOMEM;
++
++ if (!map_banks[idx]->name) {
+ ret = -ENOMEM;
++ /* FIXME: What if some MTD devices were probed already? */
+ goto error_mem;
+ }
+- memset((void *)map_banks[idx]->name, 0, 16);
+-
+ sprintf(map_banks[idx]->name, "TQM8xxL%d", idx);
++
+ map_banks[idx]->size = flash_size;
+ map_banks[idx]->buswidth = 4;
+- map_banks[idx]->read8 = tqm8xxl_read8;
+- map_banks[idx]->read16 = tqm8xxl_read16;
+- map_banks[idx]->read32 = tqm8xxl_read32;
+- map_banks[idx]->copy_from = tqm8xxl_copy_from;
+- map_banks[idx]->write8 = tqm8xxl_write8;
+- map_banks[idx]->write16 = tqm8xxl_write16;
+- map_banks[idx]->write32 = tqm8xxl_write32;
+- map_banks[idx]->copy_to = tqm8xxl_copy_to;
++
++ simple_map_init(map_banks[idx]);
++
++ map_banks[idx]->virt = start_scan_addr;
++ map_banks[idx]->phys = flash_addr;
++ /* FIXME: This looks utterly bogus, but I'm trying to
++ preserve the behaviour of the original (shown here)...
++
+ map_banks[idx]->map_priv_1 =
+ start_scan_addr + ((idx > 0) ?
+ (mtd_banks[idx-1] ? mtd_banks[idx-1]->size : 0) : 0);
++ */
++
++ if (idx && mtd_banks[idx-1]) {
++ map_banks[idx]->virt += mtd_banks[idx-1]->size;
++ map_banks[idx]->phys += mtd_banks[idx-1]->size;
++ }
++
+ //start to probe flash chips
+ mtd_banks[idx] = do_map_probe("cfi_probe", map_banks[idx]);
+- if(mtd_banks[idx])
+- {
+- mtd_banks[idx]->module = THIS_MODULE;
++
++ if (mtd_banks[idx]) {
++ mtd_banks[idx]->owner = THIS_MODULE;
+ mtd_size += mtd_banks[idx]->size;
+ num_banks++;
+- printk("%s: bank%d, name:%s, size:%dbytes \n", __FUNCTION__, num_banks,
++
++ printk(KERN_INFO "%s: bank%d, name:%s, size:%dbytes \n", __FUNCTION__, num_banks,
+ mtd_banks[idx]->name, mtd_banks[idx]->size);
+ }
+ }
+
+ /* no supported flash chips found */
+- if(!num_banks)
+- {
+- printk("TQM8xxL: No support flash chips found!\n");
++ if (!num_banks) {
++ printk(KERN_NOTICE "TQM8xxL: No support flash chips found!\n");
+ ret = -ENXIO;
+ goto error_mem;
+ }
+@@ -231,12 +196,13 @@
+ */
+ part_banks[0].mtd_part = tqm8xxl_partitions;
+ part_banks[0].type = "Static image";
+- part_banks[0].nums = NB_OF(tqm8xxl_partitions);
++ part_banks[0].nums = ARRAY_SIZE(tqm8xxl_partitions);
++
+ part_banks[1].mtd_part = tqm8xxl_fs_partitions;
+ part_banks[1].type = "Static file system";
+- part_banks[1].nums = NB_OF(tqm8xxl_fs_partitions);
+- for(idx = 0; idx < num_banks ; idx++)
+- {
++ part_banks[1].nums = ARRAY_SIZE(tqm8xxl_fs_partitions);
++
++ for(idx = 0; idx < num_banks ; idx++) {
+ if (part_banks[idx].nums == 0) {
+ printk(KERN_NOTICE "TQM flash%d: no partition info available, registering whole flash at once\n", idx);
+ add_mtd_device(mtd_banks[idx]);
+@@ -254,12 +220,9 @@
+ #endif
+ return 0;
+ error_mem:
+- for(idx = 0 ; idx < FLASH_BANK_MAX ; idx++)
+- {
+- if(map_banks[idx] != NULL)
+- {
+- if(map_banks[idx]->name != NULL)
+- {
++ for(idx = 0 ; idx < FLASH_BANK_MAX ; idx++) {
++ if(map_banks[idx] != NULL) {
++ if(map_banks[idx]->name != NULL) {
+ kfree(map_banks[idx]->name);
+ map_banks[idx]->name = NULL;
+ }
+@@ -267,18 +230,15 @@
+ map_banks[idx] = NULL;
+ }
+ }
+- //return -ENOMEM;
+ error:
+ iounmap((void *)start_scan_addr);
+- //return -ENXIO;
+ return ret;
+ }
+
+ static void __exit cleanup_tqm_mtd(void)
+ {
+ unsigned int idx = 0;
+- for(idx = 0 ; idx < num_banks ; idx++)
+- {
++ for(idx = 0 ; idx < num_banks ; idx++) {
+ /* destroy mtd_info previously allocated */
+ if (mtd_banks[idx]) {
+ del_mtd_partitions(mtd_banks[idx]);
+@@ -288,6 +248,7 @@
+ kfree(map_banks[idx]->name);
+ kfree(map_banks[idx]);
+ }
++
+ if (start_scan_addr) {
+ iounmap((void *)start_scan_addr);
+ start_scan_addr = 0;
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/tsunami_flash.c linux/drivers/mtd/maps/tsunami_flash.c
+--- linux-mips-2.4.27/drivers/mtd/maps/tsunami_flash.c 2002-06-27 00:35:50.000000000 +0200
++++ linux/drivers/mtd/maps/tsunami_flash.c 2004-11-19 10:25:11.979187632 +0100
+@@ -2,11 +2,13 @@
+ * tsunami_flash.c
+ *
+ * flash chip on alpha ds10...
+- * $Id: tsunami_flash.c,v 1.1 2002/01/10 22:59:13 eric Exp $
++ * $Id: tsunami_flash.c,v 1.6 2003/05/21 15:15:08 dwmw2 Exp $
+ */
+ #include <asm/io.h>
+ #include <asm/core_tsunami.h>
++#include <linux/init.h>
+ #include <linux/mtd/map.h>
++#include <linux/mtd/mtd.h>
+
+ #define FLASH_ENABLE_PORT 0x00C00001
+ #define FLASH_ENABLE_BYTE 0x01
+@@ -58,18 +60,12 @@
+ static struct map_info tsunami_flash_map = {
+ .name = "flash chip on the Tsunami TIG bus",
+ .size = MAX_TIG_FLASH_SIZE,
++ .phys = NO_XIP;
+ .buswidth = 1,
+ .read8 = tsunami_flash_read8,
+- .read16 = 0,
+- .read32 = 0,
+ .copy_from = tsunami_flash_copy_from,
+ .write8 = tsunami_flash_write8,
+- .write16 = 0,
+- .write32 = 0,
+ .copy_to = tsunami_flash_copy_to,
+- .set_vpp = 0,
+- .map_priv_1 = 0,
+-
+ };
+
+ static struct mtd_info *tsunami_flash_mtd;
+@@ -99,7 +95,7 @@
+ tsunami_flash_mtd = do_map_probe(*type, &tsunami_flash_map);
+ }
+ if (tsunami_flash_mtd) {
+- tsunami_flash_mtd->module = THIS_MODULE;
++ tsunami_flash_mtd->owner = THIS_MODULE;
+ add_mtd_device(tsunami_flash_mtd);
+ return 0;
+ }
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/uclinux.c linux/drivers/mtd/maps/uclinux.c
+--- linux-mips-2.4.27/drivers/mtd/maps/uclinux.c 2003-02-26 01:53:50.000000000 +0100
++++ linux/drivers/mtd/maps/uclinux.c 2004-11-19 10:25:11.980187480 +0100
+@@ -5,7 +5,7 @@
+ *
+ * (C) Copyright 2002, Greg Ungerer (gerg@snapgear.com)
+ *
+- * $Id: uclinux.c,v 1.2 2002/08/07 00:43:45 gerg Exp $
++ * $Id: uclinux.c,v 1.5 2003/05/20 20:59:32 dwmw2 Exp $
+ */
+
+ /****************************************************************************/
+@@ -24,58 +24,11 @@
+
+ /****************************************************************************/
+
+-__u8 uclinux_read8(struct map_info *map, unsigned long ofs)
+-{
+- return(*((__u8 *) (map->map_priv_1 + ofs)));
+-}
+-
+-__u16 uclinux_read16(struct map_info *map, unsigned long ofs)
+-{
+- return(*((__u16 *) (map->map_priv_1 + ofs)));
+-}
+-
+-__u32 uclinux_read32(struct map_info *map, unsigned long ofs)
+-{
+- return(*((__u32 *) (map->map_priv_1 + ofs)));
+-}
+-
+-void uclinux_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
+-{
+- memcpy(to, (void *)(map->map_priv_1 + from), len);
+-}
+-
+-void uclinux_write8(struct map_info *map, __u8 d, unsigned long adr)
+-{
+- *((__u8 *) (map->map_priv_1 + adr)) = d;
+-}
+-
+-void uclinux_write16(struct map_info *map, __u16 d, unsigned long adr)
+-{
+- *((__u16 *) (map->map_priv_1 + adr)) = d;
+-}
+-
+-void uclinux_write32(struct map_info *map, __u32 d, unsigned long adr)
+-{
+- *((__u32 *) (map->map_priv_1 + adr)) = d;
+-}
+-
+-void uclinux_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
+-{
+- memcpy((void *) (map->map_priv_1 + to), from, len);
+-}
+
+ /****************************************************************************/
+
+ struct map_info uclinux_ram_map = {
+- name: "RAM",
+- read8: uclinux_read8,
+- read16: uclinux_read16,
+- read32: uclinux_read32,
+- copy_from: uclinux_copy_from,
+- write8: uclinux_write8,
+- write16: uclinux_write16,
+- write32: uclinux_write32,
+- copy_to: uclinux_copy_to,
++ .name = "RAM",
+ };
+
+ struct mtd_info *uclinux_ram_mtdinfo;
+@@ -83,7 +36,7 @@
+ /****************************************************************************/
+
+ struct mtd_partition uclinux_romfs[] = {
+- { name: "ROMfs", offset: 0 }
++ { .name = "ROMfs" }
+ };
+
+ #define NUM_PARTITIONS (sizeof(uclinux_romfs) / sizeof(uclinux_romfs[0]))
+@@ -94,7 +47,7 @@
+ size_t *retlen, u_char **mtdbuf)
+ {
+ struct map_info *map = (struct map_info *) mtd->priv;
+- *mtdbuf = (u_char *) (map->map_priv_1 + ((int) from));
++ *mtdbuf = (u_char *) (map->virt + ((int) from));
+ *retlen = len;
+ return(0);
+ }
+@@ -108,29 +61,31 @@
+ extern char _ebss;
+
+ mapp = &uclinux_ram_map;
+- mapp->map_priv_2 = (unsigned long) &_ebss;
++ mapp->phys = (unsigned long) &_ebss;
+ mapp->size = PAGE_ALIGN(*((unsigned long *)((&_ebss) + 8)));
+ mapp->buswidth = 4;
+
+ printk("uclinux[mtd]: RAM probe address=0x%x size=0x%x\n",
+ (int) mapp->map_priv_2, (int) mapp->size);
+
+- mapp->map_priv_1 = (unsigned long)
+- ioremap_nocache(mapp->map_priv_2, mapp->size);
++ mapp->virt = (unsigned long)
++ ioremap_nocache(mapp->phys, mapp->size);
+
+- if (mapp->map_priv_1 == 0) {
++ if (mapp->virt == 0) {
+ printk("uclinux[mtd]: ioremap_nocache() failed\n");
+ return(-EIO);
+ }
+
++ simple_map_init(mapp);
++
+ mtd = do_map_probe("map_ram", mapp);
+ if (!mtd) {
+ printk("uclinux[mtd]: failed to find a mapping?\n");
+- iounmap((void *) mapp->map_priv_1);
++ iounmap((void *) mapp->virt);
+ return(-ENXIO);
+ }
+
+- mtd->module = THIS_MODULE;
++ mtd->owner = THIS_MODULE;
+ mtd->point = uclinux_point;
+ mtd->priv = mapp;
+
+@@ -155,8 +110,8 @@
+ uclinux_ram_mtdinfo = NULL;
+ }
+ if (uclinux_ram_map.map_priv_1) {
+- iounmap((void *) uclinux_ram_map.map_priv_1);
+- uclinux_ram_map.map_priv_1 = 0;
++ iounmap((void *) uclinux_ram_map.virt);
++ uclinux_ram_map.virt = 0;
+ }
+ }
+
+diff -Nurb linux-mips-2.4.27/drivers/mtd/maps/vmax301.c linux/drivers/mtd/maps/vmax301.c
+--- linux-mips-2.4.27/drivers/mtd/maps/vmax301.c 2001-11-05 21:15:52.000000000 +0100
++++ linux/drivers/mtd/maps/vmax301.c 2004-11-19 10:25:11.982187176 +0100
+@@ -1,4 +1,4 @@
+-// $Id: vmax301.c,v 1.24 2001/10/02 15:05:14 dwmw2 Exp $
++// $Id: vmax301.c,v 1.28 2003/05/21 15:15:08 dwmw2 Exp $
+ /* ######################################################################
+
+ Tempustech VMAX SBC301 MTD Driver.
+@@ -24,6 +24,7 @@
+ #include <asm/io.h>
+
+ #include <linux/mtd/map.h>
++#include <linux/mtd/mtd.h>
+
+
+ #define WINDOW_START 0xd8000
+@@ -142,34 +143,36 @@
+
+ static struct map_info vmax_map[2] = {
+ {
+- name: "VMAX301 Internal Flash",
+- size: 3*2*1024*1024,
+- buswidth: 1,
+- read8: vmax301_read8,
+- read16: vmax301_read16,
+- read32: vmax301_read32,
+- copy_from: vmax301_copy_from,
+- write8: vmax301_write8,
+- write16: vmax301_write16,
+- write32: vmax301_write32,
+- copy_to: vmax301_copy_to,
+- map_priv_1: WINDOW_START + WINDOW_LENGTH,
+- map_priv_2: 0xFFFFFFFF
++ .name = "VMAX301 Internal Flash",
++ .phys = NO_XIP,
++ .size = 3*2*1024*1024,
++ .buswidth = 1,
++ .read8 = vmax301_read8,
++ .read16 = vmax301_read16,
++ .read32 = vmax301_read32,
++ .copy_from = vmax301_copy_from,
++ .write8 = vmax301_write8,
++ .write16 = vmax301_write16,
++ .write32 = vmax301_write32,
++ .copy_to = vmax301_copy_to,
++ .map_priv_1 = WINDOW_START + WINDOW_LENGTH,
++ .map_priv_2 = 0xFFFFFFFF
+ },
+ {
+- name: "VMAX301 Socket",
+- size: 0,
+- buswidth: 1,
+- read8: vmax301_read8,
+- read16: vmax301_read16,
+- read32: vmax301_read32,
+- copy_from: vmax301_copy_from,
+- write8: vmax301_write8,
+- write16: vmax301_write16,
+- write32: vmax301_write32,
+- copy_to: vmax301_copy_to,
+- map_priv_1: WINDOW_START + (3*WINDOW_LENGTH),
+- map_priv_2: 0xFFFFFFFF
++ .name = "VMAX301 Socket",
++ .phys = NO_XIP,
++ .size = 0,
++ .buswidth = 1,
++ .read8 = vmax301_read8,
++ .read16 = vmax301_read16,
++ .read32 = vmax301_read32,
++ .copy_from = vmax301_copy_from,
++ .write8 = vmax301_write8,
++ .write16 = vmax301_write16,
++ .write32 = vmax301_write32,
++ .copy_to = vmax301_copy_to,
++ .map_priv_1 = WINDOW_START + (3*WINDOW_LENGTH),
++ .map_priv_2 = 0xFFFFFFFF
+ }
+ };
+
+@@ -206,8 +209,8 @@
+ address of the first half, because it's used more
+ often.
+ */
+- vmax_map[0].map_priv_1 = iomapadr + WINDOW_START;
+- vmax_map[1].map_priv_1 = iomapadr + (3*WINDOW_START);
++ vmax_map[0].map_priv_2 = iomapadr + WINDOW_START;
++ vmax_map[1].map_priv_2 = iomapadr + (3*WINDOW_START);
+
+ for (i=0; i<2; i++) {
+ vmax_mtd[i] = do_map_probe("cfi_probe", &vmax_map[i]);
+@@ -218,7 +221,7 @@
+ if (!vmax_mtd[i])
+ vmax_mtd[i] = do_map_probe("map_rom", &vmax_map[i]);
+ if (vmax_mtd[i]) {
+- vmax_mtd[i]->module = THIS_MODULE;
++ vmax_mtd[i]->owner = THIS_MODULE;
+ add_mtd_device(vmax_mtd[i]);
+ }
+ }
+diff -Nurb linux-mips-2.4.27/drivers/mtd/mtd_blkdevs-24.c linux/drivers/mtd/mtd_blkdevs-24.c
+--- linux-mips-2.4.27/drivers/mtd/mtd_blkdevs-24.c 1970-01-01 01:00:00.000000000 +0100
++++ linux/drivers/mtd/mtd_blkdevs-24.c 2004-11-19 10:25:11.640239160 +0100
+@@ -0,0 +1,699 @@
++/*
++ * $Id: mtd_blkdevs-24.c,v 1.15 2003/10/10 08:55:03 dwmw2 Exp $
++ *
++ * (C) 2003 David Woodhouse <dwmw2@infradead.org>
++ *
++ * Interface to Linux 2.4 block layer for MTD 'translation layers'.
++ *
++ */
++
++#include <linux/kernel.h>
++#include <linux/slab.h>
++#include <linux/module.h>
++#include <linux/list.h>
++#include <linux/fs.h>
++#include <linux/mtd/blktrans.h>
++#include <linux/mtd/mtd.h>
++#include <linux/blkdev.h>
++#include <linux/blk.h>
++#include <linux/blkpg.h>
++#include <linux/spinlock.h>
++#include <linux/hdreg.h>
++#include <linux/init.h>
++#include <asm/semaphore.h>
++#include <asm/uaccess.h>
++
++static LIST_HEAD(blktrans_majors);
++
++extern struct semaphore mtd_table_mutex;
++extern struct mtd_info *mtd_table[];
++
++struct mtd_blkcore_priv {
++ devfs_handle_t devfs_dir_handle;
++ int blksizes[256];
++ int sizes[256];
++ struct hd_struct part_table[256];
++ struct gendisk gd;
++ spinlock_t devs_lock; /* See comment in _request function */
++ struct completion thread_dead;
++ int exiting;
++ wait_queue_head_t thread_wq;
++};
++
++static inline struct mtd_blktrans_dev *tr_get_dev(struct mtd_blktrans_ops *tr,
++ int devnum)
++{
++ struct list_head *this;
++ struct mtd_blktrans_dev *d;
++
++ list_for_each(this, &tr->devs) {
++ d = list_entry(this, struct mtd_blktrans_dev, list);
++
++ if (d->devnum == devnum)
++ return d;
++ }
++ return NULL;
++}
++
++static inline struct mtd_blktrans_ops *get_tr(int major)
++{
++ struct list_head *this;
++ struct mtd_blktrans_ops *t;
++
++ list_for_each(this, &blktrans_majors) {
++ t = list_entry(this, struct mtd_blktrans_ops, list);
++
++ if (t->major == major)
++ return t;
++ }
++ return NULL;
++}
++
++static int do_blktrans_request(struct mtd_blktrans_ops *tr,
++ struct mtd_blktrans_dev *dev,
++ struct request *req)
++{
++ unsigned long block, nsect;
++ char *buf;
++ int minor;
++
++ minor = MINOR(req->rq_dev);
++ block = req->sector;
++ nsect = req->current_nr_sectors;
++ buf = req->buffer;
++
++ if (block + nsect > tr->blkcore_priv->part_table[minor].nr_sects) {
++ printk(KERN_WARNING "Access beyond end of device.\n");
++ return 0;
++ }
++ block += tr->blkcore_priv->part_table[minor].start_sect;
++
++ switch(req->cmd) {
++ case READ:
++ for (; nsect > 0; nsect--, block++, buf += 512)
++ if (tr->readsect(dev, block, buf))
++ return 0;
++ return 1;
++
++ case WRITE:
++ if (!tr->writesect)
++ return 0;
++
++ for (; nsect > 0; nsect--, block++, buf += 512)
++ if (tr->writesect(dev, block, buf))
++ return 0;
++ return 1;
++
++ default:
++ printk(KERN_NOTICE "Unknown request cmd %d\n", req->cmd);
++ return 0;
++ }
++}
++
++static int mtd_blktrans_thread(void *arg)
++{
++ struct mtd_blktrans_ops *tr = arg;
++ struct request_queue *rq = BLK_DEFAULT_QUEUE(tr->major);
++
++ /* we might get involved when memory gets low, so use PF_MEMALLOC */
++ current->flags |= PF_MEMALLOC;
++
++ snprintf(current->comm, sizeof(current->comm), "%sd", tr->name);
++
++ /* daemonize() doesn't do this for us since some kernel threads
++ actually want to deal with signals. We can't just call
++ exit_sighand() since that'll cause an oops when we finally
++ do exit. */
++
++#ifndef __rh_config_h__ /* HAVE_NPTL */
++ spin_lock_irq(&current->sigmask_lock);
++ sigfillset(&current->blocked);
++ recalc_sigpending(current);
++ spin_unlock_irq(&current->sigmask_lock);
++#else
++ spin_lock_irq(&current->sighand->siglock);
++ sigfillset(&current->blocked);
++ recalc_sigpending();
++ spin_unlock_irq(&current->sighand->siglock);
++#endif
++ daemonize();
++
++ while (!tr->blkcore_priv->exiting) {
++ struct request *req;
++ struct mtd_blktrans_dev *dev;
++ int devnum;
++ int res = 0;
++ DECLARE_WAITQUEUE(wait, current);
++
++ spin_lock_irq(&io_request_lock);
++
++ if (list_empty(&rq->queue_head)) {
++
++ add_wait_queue(&tr->blkcore_priv->thread_wq, &wait);
++ set_current_state(TASK_INTERRUPTIBLE);
++
++ spin_unlock_irq(&io_request_lock);
++
++ schedule();
++ remove_wait_queue(&tr->blkcore_priv->thread_wq, &wait);
++
++ continue;
++ }
++
++ req = blkdev_entry_next_request(&rq->queue_head);
++
++ devnum = MINOR(req->rq_dev) >> tr->part_bits;
++
++ /* The ll_rw_blk code knows not to touch the request
++ at the head of the queue */
++ spin_unlock_irq(&io_request_lock);
++
++ /* FIXME: Where can we store the dev, on which
++ we already have a refcount anyway? We need to
++ lock against concurrent addition/removal of devices,
++ but if we use the mtd_table_mutex we deadlock when
++ grok_partitions is called from the registration
++ callbacks. */
++ spin_lock(&tr->blkcore_priv->devs_lock);
++ dev = tr_get_dev(tr, devnum);
++ spin_unlock(&tr->blkcore_priv->devs_lock);
++
++ BUG_ON(!dev);
++
++ /* Ensure serialisation of requests */
++ down(&dev->sem);
++
++ res = do_blktrans_request(tr, dev, req);
++ up(&dev->sem);
++
++ if (!end_that_request_first(req, res, tr->name)) {
++ spin_lock_irq(&io_request_lock);
++ blkdev_dequeue_request(req);
++ end_that_request_last(req);
++ spin_unlock_irq(&io_request_lock);
++ }
++ }
++ complete_and_exit(&tr->blkcore_priv->thread_dead, 0);
++}
++
++static void mtd_blktrans_request(struct request_queue *rq)
++{
++ struct mtd_blktrans_ops *tr = rq->queuedata;
++ wake_up(&tr->blkcore_priv->thread_wq);
++}
++
++int blktrans_open(struct inode *i, struct file *f)
++{
++ struct mtd_blktrans_ops *tr = NULL;
++ struct mtd_blktrans_dev *dev = NULL;
++ int major_nr = MAJOR(i->i_rdev);
++ int minor_nr = MINOR(i->i_rdev);
++ int devnum;
++ int ret = -ENODEV;
++
++ if (is_read_only(i->i_rdev) && (f->f_mode & FMODE_WRITE))
++ return -EROFS;
++
++ down(&mtd_table_mutex);
++
++ tr = get_tr(major_nr);
++
++ if (!tr)
++ goto out;
++
++ devnum = minor_nr >> tr->part_bits;
++
++ dev = tr_get_dev(tr, devnum);
++
++ if (!dev)
++ goto out;
++
++ if (!tr->blkcore_priv->part_table[minor_nr].nr_sects) {
++ ret = -ENODEV;
++ goto out;
++ }
++
++ if (!try_inc_mod_count(dev->mtd->owner))
++ goto out;
++
++ if (!try_inc_mod_count(tr->owner))
++ goto out_tr;
++
++ dev->mtd->usecount++;
++
++ ret = 0;
++ if (tr->open && (ret = tr->open(dev))) {
++ dev->mtd->usecount--;
++ if (dev->mtd->owner)
++ __MOD_DEC_USE_COUNT(dev->mtd->owner);
++ out_tr:
++ if (tr->owner)
++ __MOD_DEC_USE_COUNT(tr->owner);
++ }
++ out:
++ up(&mtd_table_mutex);
++
++ return ret;
++}
++
++int blktrans_release(struct inode *i, struct file *f)
++{
++ struct mtd_blktrans_dev *dev;
++ struct mtd_blktrans_ops *tr;
++ int ret = 0;
++ int devnum;
++
++ down(&mtd_table_mutex);
++
++ tr = get_tr(MAJOR(i->i_rdev));
++ if (!tr) {
++ up(&mtd_table_mutex);
++ return -ENODEV;
++ }
++
++ devnum = MINOR(i->i_rdev) >> tr->part_bits;
++ dev = tr_get_dev(tr, devnum);
++
++ if (!dev) {
++ up(&mtd_table_mutex);
++ return -ENODEV;
++ }
++
++ if (tr->release)
++ ret = tr->release(dev);
++
++ if (!ret) {
++ dev->mtd->usecount--;
++ if (dev->mtd->owner)
++ __MOD_DEC_USE_COUNT(dev->mtd->owner);
++ if (tr->owner)
++ __MOD_DEC_USE_COUNT(tr->owner);
++ }
++
++ up(&mtd_table_mutex);
++
++ return ret;
++}
++
++static int mtd_blktrans_rrpart(kdev_t rdev, struct mtd_blktrans_ops *tr,
++ struct mtd_blktrans_dev *dev)
++{
++ struct gendisk *gd = &(tr->blkcore_priv->gd);
++ int i;
++ int minor = MINOR(rdev);
++
++ if (minor & ((1<<tr->part_bits)-1) || !tr->part_bits) {
++ /* BLKRRPART on a partition. Go away. */
++ return -ENOTTY;
++ }
++
++ if (!capable(CAP_SYS_ADMIN))
++ return -EACCES;
++
++ /* We are required to prevent simultaneous open() ourselves.
++ The core doesn't do that for us. Did I ever mention how
++ much the Linux block layer sucks? Sledgehammer approach... */
++ down(&mtd_table_mutex);
++
++ for (i=0; i < (1<<tr->part_bits); i++) {
++ invalidate_device(MKDEV(tr->major, minor+i), 1);
++ gd->part[minor + i].start_sect = 0;
++ gd->part[minor + i].nr_sects = 0;
++ }
++
++ grok_partitions(gd, minor, 1 << tr->part_bits,
++ tr->blkcore_priv->sizes[minor]);
++ up(&mtd_table_mutex);
++
++ return 0;
++}
++
++static int blktrans_ioctl(struct inode *inode, struct file *file,
++ unsigned int cmd, unsigned long arg)
++{
++ struct mtd_blktrans_dev *dev;
++ struct mtd_blktrans_ops *tr;
++ int devnum;
++
++ switch(cmd) {
++ case BLKGETSIZE:
++ case BLKGETSIZE64:
++ case BLKBSZSET:
++ case BLKBSZGET:
++ case BLKROSET:
++ case BLKROGET:
++ case BLKRASET:
++ case BLKRAGET:
++ case BLKPG:
++ case BLKELVGET:
++ case BLKELVSET:
++ return blk_ioctl(inode->i_rdev, cmd, arg);
++ }
++
++ down(&mtd_table_mutex);
++
++ tr = get_tr(MAJOR(inode->i_rdev));
++ if (!tr) {
++ up(&mtd_table_mutex);
++ return -ENODEV;
++ }
++
++ devnum = MINOR(inode->i_rdev) >> tr->part_bits;
++ dev = tr_get_dev(tr, devnum);
++
++ up(&mtd_table_mutex);
++
++ if (!dev)
++ return -ENODEV;
++
++ switch(cmd) {
++ case BLKRRPART:
++ return mtd_blktrans_rrpart(inode->i_rdev, tr, dev);
++
++ case BLKFLSBUF:
++ blk_ioctl(inode->i_rdev, cmd, arg);
++ if (tr->flush)
++ return tr->flush(dev);
++ /* The core code did the work, we had nothing to do. */
++ return 0;
++
++ case HDIO_GETGEO:
++ if (tr->getgeo) {
++ struct hd_geometry g;
++ struct gendisk *gd = &(tr->blkcore_priv->gd);
++ int ret;
++
++ memset(&g, 0, sizeof(g));
++ ret = tr->getgeo(dev, &g);
++ if (ret)
++ return ret;
++
++ g.start = gd->part[MINOR(inode->i_rdev)].start_sect;
++ if (copy_to_user((void *)arg, &g, sizeof(g)))
++ return -EFAULT;
++ return 0;
++ } /* else */
++ default:
++ return -ENOTTY;
++ }
++}
++
++struct block_device_operations mtd_blktrans_ops = {
++ .owner = THIS_MODULE,
++ .open = blktrans_open,
++ .release = blktrans_release,
++ .ioctl = blktrans_ioctl,
++};
++
++int add_mtd_blktrans_dev(struct mtd_blktrans_dev *new)
++{
++ struct mtd_blktrans_ops *tr = new->tr;
++ struct list_head *this;
++ int last_devnum = -1;
++ int i;
++
++ if (!down_trylock(&mtd_table_mutex)) {
++ up(&mtd_table_mutex);
++ BUG();
++ }
++
++ spin_lock(&tr->blkcore_priv->devs_lock);
++
++ list_for_each(this, &tr->devs) {
++ struct mtd_blktrans_dev *d = list_entry(this, struct mtd_blktrans_dev, list);
++ if (new->devnum == -1) {
++ /* Use first free number */
++ if (d->devnum != last_devnum+1) {
++ /* Found a free devnum. Plug it in here */
++ new->devnum = last_devnum+1;
++ list_add_tail(&new->list, &d->list);
++ goto added;
++ }
++ } else if (d->devnum == new->devnum) {
++ /* Required number taken */
++ spin_unlock(&tr->blkcore_priv->devs_lock);
++ return -EBUSY;
++ } else if (d->devnum > new->devnum) {
++ /* Required number was free */
++ list_add_tail(&new->list, &d->list);
++ goto added;
++ }
++ last_devnum = d->devnum;
++ }
++ if (new->devnum == -1)
++ new->devnum = last_devnum+1;
++
++ if ((new->devnum << tr->part_bits) > 256) {
++ spin_unlock(&tr->blkcore_priv->devs_lock);
++ return -EBUSY;
++ }
++
++ init_MUTEX(&new->sem);
++ list_add_tail(&new->list, &tr->devs);
++ added:
++ spin_unlock(&tr->blkcore_priv->devs_lock);
++
++ if (!tr->writesect)
++ new->readonly = 1;
++
++ for (i = new->devnum << tr->part_bits;
++ i < (new->devnum+1) << tr->part_bits;
++ i++) {
++ set_device_ro(MKDEV(tr->major, i), new->readonly);
++ tr->blkcore_priv->blksizes[i] = new->blksize;
++ tr->blkcore_priv->sizes[i] = 0;
++ tr->blkcore_priv->part_table[i].nr_sects = 0;
++ tr->blkcore_priv->part_table[i].start_sect = 0;
++ }
++
++ /*
++ <viro_zzz> dwmw2: BLOCK_SIZE_BITS has nothing to do with block devices
++ <viro> dwmw2: any code which sets blk_size[][] should be
++ size >> 10 /+ 2.4 and its dumb units */
++
++ tr->blkcore_priv->sizes[new->devnum << tr->part_bits] =
++ (new->size * new->blksize) >> 10; /* 2.4 and its dumb units */
++
++ /* But this is still in device's sectors? $DEITY knows */
++ tr->blkcore_priv->part_table[new->devnum << tr->part_bits].nr_sects = new->size;
++
++ if (tr->part_bits) {
++ grok_partitions(&tr->blkcore_priv->gd, new->devnum,
++ 1 << tr->part_bits, new->size);
++ }
++#ifdef CONFIG_DEVFS_FS
++ if (!tr->part_bits) {
++ char name[2];
++
++ name[0] = '0' + new->devnum;
++ name[1] = 0;
++
++ new->blkcore_priv =
++ devfs_register(tr->blkcore_priv->devfs_dir_handle,
++ name, DEVFS_FL_DEFAULT, tr->major,
++ new->devnum, S_IFBLK|S_IRUGO|S_IWUGO,
++ &mtd_blktrans_ops, NULL);
++ }
++#endif
++ return 0;
++}
++
++int del_mtd_blktrans_dev(struct mtd_blktrans_dev *old)
++{
++ struct mtd_blktrans_ops *tr = old->tr;
++ int i;
++
++ if (!down_trylock(&mtd_table_mutex)) {
++ up(&mtd_table_mutex);
++ BUG();
++ }
++
++#ifdef CONFIG_DEVFS_FS
++ if (!tr->part_bits) {
++ devfs_unregister(old->blkcore_priv);
++ old->blkcore_priv = NULL;
++ } else {
++ devfs_register_partitions(&tr->blkcore_priv->gd,
++ old->devnum << tr->part_bits, 1);
++ }
++#endif
++ spin_lock(&tr->blkcore_priv->devs_lock);
++ list_del(&old->list);
++ spin_unlock(&tr->blkcore_priv->devs_lock);
++
++ for (i = (old->devnum << tr->part_bits);
++ i < ((old->devnum+1) << tr->part_bits); i++) {
++ tr->blkcore_priv->sizes[i] = 0;
++ tr->blkcore_priv->part_table[i].nr_sects = 0;
++ tr->blkcore_priv->part_table[i].start_sect = 0;
++ }
++
++ return 0;
++}
++
++void blktrans_notify_remove(struct mtd_info *mtd)
++{
++ struct list_head *this, *this2, *next;
++
++ list_for_each(this, &blktrans_majors) {
++ struct mtd_blktrans_ops *tr = list_entry(this, struct mtd_blktrans_ops, list);
++
++ list_for_each_safe(this2, next, &tr->devs) {
++ struct mtd_blktrans_dev *dev = list_entry(this2, struct mtd_blktrans_dev, list);
++
++ if (dev->mtd == mtd)
++ tr->remove_dev(dev);
++ }
++ }
++}
++
++void blktrans_notify_add(struct mtd_info *mtd)
++{
++ struct list_head *this;
++
++ if (mtd->type == MTD_ABSENT)
++ return;
++
++ list_for_each(this, &blktrans_majors) {
++ struct mtd_blktrans_ops *tr = list_entry(this, struct mtd_blktrans_ops, list);
++
++ tr->add_mtd(tr, mtd);
++ }
++
++}
++
++static struct mtd_notifier blktrans_notifier = {
++ .add = blktrans_notify_add,
++ .remove = blktrans_notify_remove,
++};
++
++int register_mtd_blktrans(struct mtd_blktrans_ops *tr)
++{
++ int ret, i;
++
++ /* Register the notifier if/when the first device type is
++ registered, to prevent the link/init ordering from fucking
++ us over. */
++ if (!blktrans_notifier.list.next)
++ register_mtd_user(&blktrans_notifier);
++
++ tr->blkcore_priv = kmalloc(sizeof(*tr->blkcore_priv), GFP_KERNEL);
++ if (!tr->blkcore_priv)
++ return -ENOMEM;
++
++ memset(tr->blkcore_priv, 0, sizeof(*tr->blkcore_priv));
++
++ down(&mtd_table_mutex);
++
++ ret = devfs_register_blkdev(tr->major, tr->name, &mtd_blktrans_ops);
++ if (ret) {
++ printk(KERN_WARNING "Unable to register %s block device on major %d: %d\n",
++ tr->name, tr->major, ret);
++ kfree(tr->blkcore_priv);
++ up(&mtd_table_mutex);
++ return ret;
++ }
++
++ blk_init_queue(BLK_DEFAULT_QUEUE(tr->major), &mtd_blktrans_request);
++ (BLK_DEFAULT_QUEUE(tr->major))->queuedata = tr;
++
++ init_completion(&tr->blkcore_priv->thread_dead);
++ init_waitqueue_head(&tr->blkcore_priv->thread_wq);
++
++ ret = kernel_thread(mtd_blktrans_thread, tr,
++ CLONE_FS|CLONE_FILES|CLONE_SIGHAND);
++ if (ret < 0) {
++ blk_cleanup_queue(BLK_DEFAULT_QUEUE(tr->major));
++ devfs_unregister_blkdev(tr->major, tr->name);
++ kfree(tr->blkcore_priv);
++ up(&mtd_table_mutex);
++ return ret;
++ }
++
++ tr->blkcore_priv->devfs_dir_handle =
++ devfs_mk_dir(NULL, tr->name, NULL);
++
++ blksize_size[tr->major] = tr->blkcore_priv->blksizes;
++ blk_size[tr->major] = tr->blkcore_priv->sizes;
++
++ tr->blkcore_priv->gd.major = tr->major;
++ tr->blkcore_priv->gd.major_name = tr->name;
++ tr->blkcore_priv->gd.minor_shift = tr->part_bits;
++ tr->blkcore_priv->gd.max_p = (1<<tr->part_bits) - 1;
++ tr->blkcore_priv->gd.part = tr->blkcore_priv->part_table;
++ tr->blkcore_priv->gd.sizes = tr->blkcore_priv->sizes;
++ tr->blkcore_priv->gd.nr_real = 256 >> tr->part_bits;
++
++ spin_lock_init(&tr->blkcore_priv->devs_lock);
++
++ add_gendisk(&tr->blkcore_priv->gd);
++
++ INIT_LIST_HEAD(&tr->devs);
++ list_add(&tr->list, &blktrans_majors);
++
++ for (i=0; i<MAX_MTD_DEVICES; i++) {
++ if (mtd_table[i] && mtd_table[i]->type != MTD_ABSENT)
++ tr->add_mtd(tr, mtd_table[i]);
++ }
++ up(&mtd_table_mutex);
++
++ return 0;
++}
++
++int deregister_mtd_blktrans(struct mtd_blktrans_ops *tr)
++{
++ struct list_head *this, *next;
++
++ down(&mtd_table_mutex);
++
++ /* Clean up the kernel thread */
++ tr->blkcore_priv->exiting = 1;
++ wake_up(&tr->blkcore_priv->thread_wq);
++ wait_for_completion(&tr->blkcore_priv->thread_dead);
++
++ /* Remove it from the list of active majors */
++ list_del(&tr->list);
++
++ /* Remove each of its devices */
++ list_for_each_safe(this, next, &tr->devs) {
++ struct mtd_blktrans_dev *dev = list_entry(this, struct mtd_blktrans_dev, list);
++ tr->remove_dev(dev);
++ }
++
++ blksize_size[tr->major] = NULL;
++ blk_size[tr->major] = NULL;
++
++ del_gendisk(&tr->blkcore_priv->gd);
++
++ blk_cleanup_queue(BLK_DEFAULT_QUEUE(tr->major));
++ devfs_unregister_blkdev(tr->major, tr->name);
++
++ devfs_unregister(tr->blkcore_priv->devfs_dir_handle);
++
++ up(&mtd_table_mutex);
++
++ kfree(tr->blkcore_priv);
++
++ if (!list_empty(&tr->devs))
++ BUG();
++ return 0;
++}
++
++static void __exit mtd_blktrans_exit(void)
++{
++ /* No race here -- if someone's currently in register_mtd_blktrans
++ we're screwed anyway. */
++ if (blktrans_notifier.list.next)
++ unregister_mtd_user(&blktrans_notifier);
++}
++
++module_exit(mtd_blktrans_exit);
++
++EXPORT_SYMBOL_GPL(register_mtd_blktrans);
++EXPORT_SYMBOL_GPL(deregister_mtd_blktrans);
++EXPORT_SYMBOL_GPL(add_mtd_blktrans_dev);
++EXPORT_SYMBOL_GPL(del_mtd_blktrans_dev);
++
++MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org>");
++MODULE_LICENSE("GPL");
++MODULE_DESCRIPTION("Common interface to block layer for MTD 'translation layers'");
+diff -Nurb linux-mips-2.4.27/drivers/mtd/mtd_blkdevs.c linux/drivers/mtd/mtd_blkdevs.c
+--- linux-mips-2.4.27/drivers/mtd/mtd_blkdevs.c 1970-01-01 01:00:00.000000000 +0100
++++ linux/drivers/mtd/mtd_blkdevs.c 2004-11-19 10:25:11.642238856 +0100
+@@ -0,0 +1,479 @@
++/*
++ * $Id: mtd_blkdevs.c,v 1.19 2003/11/07 09:52:46 dwmw2 Exp $
++ *
++ * (C) 2003 David Woodhouse <dwmw2@infradead.org>
++ *
++ * Interface to Linux 2.5 block layer for MTD 'translation layers'.
++ *
++ */
++
++#include <linux/kernel.h>
++#include <linux/slab.h>
++#include <linux/module.h>
++#include <linux/list.h>
++#include <linux/fs.h>
++#include <linux/mtd/blktrans.h>
++#include <linux/mtd/mtd.h>
++#include <linux/blkdev.h>
++#include <linux/blk.h>
++#include <linux/blkpg.h>
++#include <linux/spinlock.h>
++#include <linux/hdreg.h>
++#include <linux/init.h>
++#include <asm/semaphore.h>
++#include <asm/uaccess.h>
++#include <linux/devfs_fs_kernel.h>
++
++static LIST_HEAD(blktrans_majors);
++
++extern struct semaphore mtd_table_mutex;
++extern struct mtd_info *mtd_table[];
++
++struct mtd_blkcore_priv {
++ struct completion thread_dead;
++ int exiting;
++ wait_queue_head_t thread_wq;
++ struct request_queue *rq;
++ spinlock_t queue_lock;
++};
++
++static int do_blktrans_request(struct mtd_blktrans_ops *tr,
++ struct mtd_blktrans_dev *dev,
++ struct request *req)
++{
++ unsigned long block, nsect;
++ char *buf;
++
++ block = req->sector;
++ nsect = req->current_nr_sectors;
++ buf = req->buffer;
++
++ if (!(req->flags & REQ_CMD))
++ return 0;
++
++ if (block + nsect > get_capacity(req->rq_disk))
++ return 0;
++
++ switch(rq_data_dir(req)) {
++ case READ:
++ for (; nsect > 0; nsect--, block++, buf += 512)
++ if (tr->readsect(dev, block, buf))
++ return 0;
++ return 1;
++
++ case WRITE:
++ if (!tr->writesect)
++ return 0;
++
++ for (; nsect > 0; nsect--, block++, buf += 512)
++ if (tr->writesect(dev, block, buf))
++ return 0;
++ return 1;
++
++ default:
++ printk(KERN_NOTICE "Unknown request %ld\n", rq_data_dir(req));
++ return 0;
++ }
++}
++
++static int mtd_blktrans_thread(void *arg)
++{
++ struct mtd_blktrans_ops *tr = arg;
++ struct request_queue *rq = tr->blkcore_priv->rq;
++
++ /* we might get involved when memory gets low, so use PF_MEMALLOC */
++ current->flags |= PF_MEMALLOC;
++
++ daemonize("%sd", tr->name);
++
++ /* daemonize() doesn't do this for us since some kernel threads
++ actually want to deal with signals. We can't just call
++ exit_sighand() since that'll cause an oops when we finally
++ do exit. */
++ spin_lock_irq(&current->sighand->siglock);
++ sigfillset(&current->blocked);
++ recalc_sigpending();
++ spin_unlock_irq(&current->sighand->siglock);
++
++ spin_lock_irq(rq->queue_lock);
++
++ while (!tr->blkcore_priv->exiting) {
++ struct request *req;
++ struct mtd_blktrans_dev *dev;
++ int res = 0;
++ DECLARE_WAITQUEUE(wait, current);
++
++ req = elv_next_request(rq);
++
++ if (!req) {
++ add_wait_queue(&tr->blkcore_priv->thread_wq, &wait);
++ set_current_state(TASK_INTERRUPTIBLE);
++
++ spin_unlock_irq(rq->queue_lock);
++
++ schedule();
++ remove_wait_queue(&tr->blkcore_priv->thread_wq, &wait);
++
++ spin_lock_irq(rq->queue_lock);
++
++ continue;
++ }
++
++ dev = req->rq_disk->private_data;
++ tr = dev->tr;
++
++ spin_unlock_irq(rq->queue_lock);
++
++ down(&dev->sem);
++ res = do_blktrans_request(tr, dev, req);
++ up(&dev->sem);
++
++ spin_lock_irq(rq->queue_lock);
++
++ end_request(req, res);
++ }
++ complete_and_exit(&tr->blkcore_priv->thread_dead, 0);
++}
++
++static void mtd_blktrans_request(struct request_queue *rq)
++{
++ struct mtd_blktrans_ops *tr = rq->queuedata;
++ wake_up(&tr->blkcore_priv->thread_wq);
++}
++
++
++int blktrans_open(struct inode *i, struct file *f)
++{
++ struct mtd_blktrans_dev *dev;
++ struct mtd_blktrans_ops *tr;
++ int ret = -ENODEV;
++
++ dev = i->i_bdev->bd_disk->private_data;
++ tr = dev->tr;
++
++ if (!try_module_get(dev->mtd->owner))
++ goto out;
++
++ if (!try_module_get(tr->owner))
++ goto out_tr;
++
++ /* FIXME: Locking. A hot pluggable device can go away
++ (del_mtd_device can be called for it) without its module
++ being unloaded. */
++ dev->mtd->usecount++;
++
++ ret = 0;
++ if (tr->open && (ret = tr->open(dev))) {
++ dev->mtd->usecount--;
++ module_put(dev->mtd->owner);
++ out_tr:
++ module_put(tr->owner);
++ }
++ out:
++ return ret;
++}
++
++int blktrans_release(struct inode *i, struct file *f)
++{
++ struct mtd_blktrans_dev *dev;
++ struct mtd_blktrans_ops *tr;
++ int ret = 0;
++
++ dev = i->i_bdev->bd_disk->private_data;
++ tr = dev->tr;
++
++ if (tr->release)
++ ret = tr->release(dev);
++
++ if (!ret) {
++ dev->mtd->usecount--;
++ module_put(dev->mtd->owner);
++ module_put(tr->owner);
++ }
++
++ return ret;
++}
++
++
++static int blktrans_ioctl(struct inode *inode, struct file *file,
++ unsigned int cmd, unsigned long arg)
++{
++ struct mtd_blktrans_dev *dev = inode->i_bdev->bd_disk->private_data;
++ struct mtd_blktrans_ops *tr = dev->tr;
++
++ switch (cmd) {
++ case BLKFLSBUF:
++ if (tr->flush)
++ return tr->flush(dev);
++ /* The core code did the work, we had nothing to do. */
++ return 0;
++
++ case HDIO_GETGEO:
++ if (tr->getgeo) {
++ struct hd_geometry g;
++ int ret;
++
++ memset(&g, 0, sizeof(g));
++ ret = tr->getgeo(dev, &g);
++
++ if (ret)
++ return ret;
++
++ g.start = get_start_sect(inode->i_bdev);
++ if (copy_to_user((void *)arg, &g, sizeof(g)))
++ return -EFAULT;
++ return 0;
++ } /* else */
++ default:
++ return -ENOTTY;
++ }
++}
++
++struct block_device_operations mtd_blktrans_ops = {
++ .owner = THIS_MODULE,
++ .open = blktrans_open,
++ .release = blktrans_release,
++ .ioctl = blktrans_ioctl,
++};
++
++int add_mtd_blktrans_dev(struct mtd_blktrans_dev *new)
++{
++ struct mtd_blktrans_ops *tr = new->tr;
++ struct list_head *this;
++ int last_devnum = -1;
++ struct gendisk *gd;
++
++ if (!down_trylock(&mtd_table_mutex)) {
++ up(&mtd_table_mutex);
++ BUG();
++ }
++
++ list_for_each(this, &tr->devs) {
++ struct mtd_blktrans_dev *d = list_entry(this, struct mtd_blktrans_dev, list);
++ if (new->devnum == -1) {
++ /* Use first free number */
++ if (d->devnum != last_devnum+1) {
++ /* Found a free devnum. Plug it in here */
++ new->devnum = last_devnum+1;
++ list_add_tail(&new->list, &d->list);
++ goto added;
++ }
++ } else if (d->devnum == new->devnum) {
++ /* Required number taken */
++ return -EBUSY;
++ } else if (d->devnum > new->devnum) {
++ /* Required number was free */
++ list_add_tail(&new->list, &d->list);
++ goto added;
++ }
++ last_devnum = d->devnum;
++ }
++ if (new->devnum == -1)
++ new->devnum = last_devnum+1;
++
++ if ((new->devnum << tr->part_bits) > 256) {
++ return -EBUSY;
++ }
++
++ init_MUTEX(&new->sem);
++ list_add_tail(&new->list, &tr->devs);
++ added:
++ if (!tr->writesect)
++ new->readonly = 1;
++
++ gd = alloc_disk(1 << tr->part_bits);
++ if (!gd) {
++ list_del(&new->list);
++ return -ENOMEM;
++ }
++ gd->major = tr->major;
++ gd->first_minor = (new->devnum) << tr->part_bits;
++ gd->fops = &mtd_blktrans_ops;
++
++ snprintf(gd->disk_name, sizeof(gd->disk_name),
++ "%s%c", tr->name, (tr->part_bits?'a':'0') + new->devnum);
++ snprintf(gd->devfs_name, sizeof(gd->devfs_name),
++ "%s/%c", tr->name, (tr->part_bits?'a':'0') + new->devnum);
++
++ /* 2.5 has capacity in units of 512 bytes while still
++ having BLOCK_SIZE_BITS set to 10. Just to keep us amused. */
++ set_capacity(gd, (new->size * new->blksize) >> 9);
++
++ gd->private_data = new;
++ new->blkcore_priv = gd;
++ gd->queue = tr->blkcore_priv->rq;
++
++ if (new->readonly)
++ set_disk_ro(gd, 1);
++
++ add_disk(gd);
++
++ return 0;
++}
++
++int del_mtd_blktrans_dev(struct mtd_blktrans_dev *old)
++{
++ if (!down_trylock(&mtd_table_mutex)) {
++ up(&mtd_table_mutex);
++ BUG();
++ }
++
++ list_del(&old->list);
++
++ del_gendisk(old->blkcore_priv);
++ put_disk(old->blkcore_priv);
++
++ return 0;
++}
++
++void blktrans_notify_remove(struct mtd_info *mtd)
++{
++ struct list_head *this, *this2, *next;
++
++ list_for_each(this, &blktrans_majors) {
++ struct mtd_blktrans_ops *tr = list_entry(this, struct mtd_blktrans_ops, list);
++
++ list_for_each_safe(this2, next, &tr->devs) {
++ struct mtd_blktrans_dev *dev = list_entry(this2, struct mtd_blktrans_dev, list);
++
++ if (dev->mtd == mtd)
++ tr->remove_dev(dev);
++ }
++ }
++}
++
++void blktrans_notify_add(struct mtd_info *mtd)
++{
++ struct list_head *this;
++
++ if (mtd->type == MTD_ABSENT)
++ return;
++
++ list_for_each(this, &blktrans_majors) {
++ struct mtd_blktrans_ops *tr = list_entry(this, struct mtd_blktrans_ops, list);
++
++ tr->add_mtd(tr, mtd);
++ }
++
++}
++
++static struct mtd_notifier blktrans_notifier = {
++ .add = blktrans_notify_add,
++ .remove = blktrans_notify_remove,
++};
++
++int register_mtd_blktrans(struct mtd_blktrans_ops *tr)
++{
++ int ret, i;
++
++ /* Register the notifier if/when the first device type is
++ registered, to prevent the link/init ordering from fucking
++ us over. */
++ if (!blktrans_notifier.list.next)
++ register_mtd_user(&blktrans_notifier);
++
++ tr->blkcore_priv = kmalloc(sizeof(*tr->blkcore_priv), GFP_KERNEL);
++ if (!tr->blkcore_priv)
++ return -ENOMEM;
++
++ memset(tr->blkcore_priv, 0, sizeof(*tr->blkcore_priv));
++
++ down(&mtd_table_mutex);
++
++ ret = register_blkdev(tr->major, tr->name);
++ if (ret) {
++ printk(KERN_WARNING "Unable to register %s block device on major %d: %d\n",
++ tr->name, tr->major, ret);
++ kfree(tr->blkcore_priv);
++ up(&mtd_table_mutex);
++ return ret;
++ }
++ spin_lock_init(&tr->blkcore_priv->queue_lock);
++ init_completion(&tr->blkcore_priv->thread_dead);
++ init_waitqueue_head(&tr->blkcore_priv->thread_wq);
++
++ tr->blkcore_priv->rq = blk_init_queue(mtd_blktrans_request, &tr->blkcore_priv->queue_lock);
++ if (!tr->blkcore_priv->rq) {
++ unregister_blkdev(tr->major, tr->name);
++ kfree(tr->blkcore_priv);
++ up(&mtd_table_mutex);
++ return -ENOMEM;
++ }
++
++ tr->blkcore_priv->rq->queuedata = tr;
++
++ ret = kernel_thread(mtd_blktrans_thread, tr,
++ CLONE_FS|CLONE_FILES|CLONE_SIGHAND);
++ if (ret < 0) {
++ blk_cleanup_queue(tr->blkcore_priv->rq);
++ unregister_blkdev(tr->major, tr->name);
++ kfree(tr->blkcore_priv);
++ up(&mtd_table_mutex);
++ return ret;
++ }
++
++ devfs_mk_dir(tr->name);
++
++ INIT_LIST_HEAD(&tr->devs);
++ list_add(&tr->list, &blktrans_majors);
++
++ for (i=0; i<MAX_MTD_DEVICES; i++) {
++ if (mtd_table[i] && mtd_table[i]->type != MTD_ABSENT)
++ tr->add_mtd(tr, mtd_table[i]);
++ }
++
++ up(&mtd_table_mutex);
++
++ return 0;
++}
++
++int deregister_mtd_blktrans(struct mtd_blktrans_ops *tr)
++{
++ struct list_head *this, *next;
++
++ down(&mtd_table_mutex);
++
++ /* Clean up the kernel thread */
++ tr->blkcore_priv->exiting = 1;
++ wake_up(&tr->blkcore_priv->thread_wq);
++ wait_for_completion(&tr->blkcore_priv->thread_dead);
++
++ /* Remove it from the list of active majors */
++ list_del(&tr->list);
++
++ list_for_each_safe(this, next, &tr->devs) {
++ struct mtd_blktrans_dev *dev = list_entry(this, struct mtd_blktrans_dev, list);
++ tr->remove_dev(dev);
++ }
++
++ devfs_remove(tr->name);
++ blk_cleanup_queue(tr->blkcore_priv->rq);
++ unregister_blkdev(tr->major, tr->name);
++
++ up(&mtd_table_mutex);
++
++ kfree(tr->blkcore_priv);
++
++ if (!list_empty(&tr->devs))
++ BUG();
++ return 0;
++}
++
++static void __exit mtd_blktrans_exit(void)
++{
++ /* No race here -- if someone's currently in register_mtd_blktrans
++ we're screwed anyway. */
++ if (blktrans_notifier.list.next)
++ unregister_mtd_user(&blktrans_notifier);
++}
++
++module_exit(mtd_blktrans_exit);
++
++EXPORT_SYMBOL_GPL(register_mtd_blktrans);
++EXPORT_SYMBOL_GPL(deregister_mtd_blktrans);
++EXPORT_SYMBOL_GPL(add_mtd_blktrans_dev);
++EXPORT_SYMBOL_GPL(del_mtd_blktrans_dev);
++
++MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org>");
++MODULE_LICENSE("GPL");
++MODULE_DESCRIPTION("Common interface to block layer for MTD 'translation layers'");
+diff -Nurb linux-mips-2.4.27/drivers/mtd/mtdblock.c linux/drivers/mtd/mtdblock.c
+--- linux-mips-2.4.27/drivers/mtd/mtdblock.c 2003-02-26 01:53:49.000000000 +0100
++++ linux/drivers/mtd/mtdblock.c 2004-11-19 10:25:11.643238704 +0100
+@@ -1,52 +1,25 @@
+ /*
+ * Direct MTD block device access
+ *
+- * $Id: mtdblock.c,v 1.51 2001/11/20 11:42:33 dwmw2 Exp $
++ * $Id: mtdblock.c,v 1.64 2003/10/04 17:14:14 dwmw2 Exp $
+ *
+- * 02-nov-2000 Nicolas Pitre Added read-modify-write with cache
++ * (C) 2000-2003 Nicolas Pitre <nico@cam.org>
++ * (C) 1999-2003 David Woodhouse <dwmw2@infradead.org>
+ */
+
+ #include <linux/config.h>
+ #include <linux/types.h>
+ #include <linux/module.h>
+ #include <linux/kernel.h>
++#include <linux/fs.h>
++#include <linux/init.h>
+ #include <linux/slab.h>
++#include <linux/vmalloc.h>
+ #include <linux/mtd/mtd.h>
+-#include <linux/mtd/compatmac.h>
+-
+-#define MAJOR_NR MTD_BLOCK_MAJOR
+-#define DEVICE_NAME "mtdblock"
+-#define DEVICE_REQUEST mtdblock_request
+-#define DEVICE_NR(device) (device)
+-#define DEVICE_ON(device)
+-#define DEVICE_OFF(device)
+-#define DEVICE_NO_RANDOM
+-#include <linux/blk.h>
+-/* for old kernels... */
+-#ifndef QUEUE_EMPTY
+-#define QUEUE_EMPTY (!CURRENT)
+-#endif
+-#if LINUX_VERSION_CODE < 0x20300
+-#define QUEUE_PLUGGED (blk_dev[MAJOR_NR].plug_tq.sync)
+-#else
+-#define QUEUE_PLUGGED (blk_dev[MAJOR_NR].request_queue.plugged)
+-#endif
+-
+-#ifdef CONFIG_DEVFS_FS
+-#include <linux/devfs_fs_kernel.h>
+-static void mtd_notify_add(struct mtd_info* mtd);
+-static void mtd_notify_remove(struct mtd_info* mtd);
+-static struct mtd_notifier notifier = {
+- mtd_notify_add,
+- mtd_notify_remove,
+- NULL
+-};
+-static devfs_handle_t devfs_dir_handle = NULL;
+-static devfs_handle_t devfs_rw_handle[MAX_MTD_DEVICES];
+-#endif
++#include <linux/mtd/blktrans.h>
+
+ static struct mtdblk_dev {
+- struct mtd_info *mtd; /* Locked */
++ struct mtd_info *mtd;
+ int count;
+ struct semaphore cache_sem;
+ unsigned char *cache_data;
+@@ -55,19 +28,6 @@
+ enum { STATE_EMPTY, STATE_CLEAN, STATE_DIRTY } cache_state;
+ } *mtdblks[MAX_MTD_DEVICES];
+
+-static spinlock_t mtdblks_lock;
+-
+-static int mtd_sizes[MAX_MTD_DEVICES];
+-static int mtd_blksizes[MAX_MTD_DEVICES];
+-
+-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,14)
+-#define BLK_INC_USE_COUNT MOD_INC_USE_COUNT
+-#define BLK_DEC_USE_COUNT MOD_DEC_USE_COUNT
+-#else
+-#define BLK_INC_USE_COUNT do {} while(0)
+-#define BLK_DEC_USE_COUNT do {} while(0)
+-#endif
+-
+ /*
+ * Cache stuff...
+ *
+@@ -151,7 +111,7 @@
+ return ret;
+
+ /*
+- * Here we could argably set the cache state to STATE_CLEAN.
++ * Here we could argubly set the cache state to STATE_CLEAN.
+ * However this could lead to inconsistency since we will not
+ * be notified if this content is altered on the flash by other
+ * means. Let's declare it empty and leave buffering tasks to
+@@ -277,57 +237,47 @@
+ return 0;
+ }
+
++static int mtdblock_readsect(struct mtd_blktrans_dev *dev,
++ unsigned long block, char *buf)
++{
++ struct mtdblk_dev *mtdblk = mtdblks[dev->devnum];
++ return do_cached_read(mtdblk, block<<9, 512, buf);
++}
+
++static int mtdblock_writesect(struct mtd_blktrans_dev *dev,
++ unsigned long block, char *buf)
++{
++ struct mtdblk_dev *mtdblk = mtdblks[dev->devnum];
++ if (unlikely(!mtdblk->cache_data)) {
++ mtdblk->cache_data = vmalloc(mtdblk->mtd->erasesize);
++ if (!mtdblk->cache_data)
++ return -EINTR;
++ /* -EINTR is not really correct, but it is the best match
++ * documented in man 2 write for all cases. We could also
++ * return -EAGAIN sometimes, but why bother?
++ */
++ }
++ return do_cached_write(mtdblk, block<<9, 512, buf);
++}
+
+-static int mtdblock_open(struct inode *inode, struct file *file)
++static int mtdblock_open(struct mtd_blktrans_dev *mbd)
+ {
+ struct mtdblk_dev *mtdblk;
+- struct mtd_info *mtd;
+- int dev;
++ struct mtd_info *mtd = mbd->mtd;
++ int dev = mbd->devnum;
+
+ DEBUG(MTD_DEBUG_LEVEL1,"mtdblock_open\n");
+
+- if (!inode)
+- return -EINVAL;
+-
+- dev = MINOR(inode->i_rdev);
+- if (dev >= MAX_MTD_DEVICES)
+- return -EINVAL;
+-
+- BLK_INC_USE_COUNT;
+-
+- mtd = get_mtd_device(NULL, dev);
+- if (!mtd)
+- return -ENODEV;
+- if (MTD_ABSENT == mtd->type) {
+- put_mtd_device(mtd);
+- BLK_DEC_USE_COUNT;
+- return -ENODEV;
+- }
+-
+- spin_lock(&mtdblks_lock);
+-
+- /* If it's already open, no need to piss about. */
+ if (mtdblks[dev]) {
+ mtdblks[dev]->count++;
+- spin_unlock(&mtdblks_lock);
+- put_mtd_device(mtd);
+ return 0;
+ }
+
+- /* OK, it's not open. Try to find it */
+-
+- /* First we have to drop the lock, because we have to
+- to things which might sleep.
+- */
+- spin_unlock(&mtdblks_lock);
+-
++ /* OK, it's not open. Create cache info for it */
+ mtdblk = kmalloc(sizeof(struct mtdblk_dev), GFP_KERNEL);
+- if (!mtdblk) {
+- put_mtd_device(mtd);
+- BLK_DEC_USE_COUNT;
++ if (!mtdblk)
+ return -ENOMEM;
+- }
++
+ memset(mtdblk, 0, sizeof(*mtdblk));
+ mtdblk->count = 1;
+ mtdblk->mtd = mtd;
+@@ -337,336 +287,102 @@
+ if ((mtdblk->mtd->flags & MTD_CAP_RAM) != MTD_CAP_RAM &&
+ mtdblk->mtd->erasesize) {
+ mtdblk->cache_size = mtdblk->mtd->erasesize;
+- mtdblk->cache_data = vmalloc(mtdblk->mtd->erasesize);
+- if (!mtdblk->cache_data) {
+- put_mtd_device(mtdblk->mtd);
+- kfree(mtdblk);
+- BLK_DEC_USE_COUNT;
+- return -ENOMEM;
+- }
+- }
+-
+- /* OK, we've created a new one. Add it to the list. */
+-
+- spin_lock(&mtdblks_lock);
+-
+- if (mtdblks[dev]) {
+- /* Another CPU made one at the same time as us. */
+- mtdblks[dev]->count++;
+- spin_unlock(&mtdblks_lock);
+- put_mtd_device(mtdblk->mtd);
+- vfree(mtdblk->cache_data);
+- kfree(mtdblk);
+- return 0;
++ mtdblk->cache_data = NULL;
+ }
+
+ mtdblks[dev] = mtdblk;
+- mtd_sizes[dev] = mtdblk->mtd->size/1024;
+- if (mtdblk->mtd->erasesize)
+- mtd_blksizes[dev] = mtdblk->mtd->erasesize;
+- if (mtd_blksizes[dev] > PAGE_SIZE)
+- mtd_blksizes[dev] = PAGE_SIZE;
+- set_device_ro (inode->i_rdev, !(mtdblk->mtd->flags & MTD_WRITEABLE));
+-
+- spin_unlock(&mtdblks_lock);
+
+ DEBUG(MTD_DEBUG_LEVEL1, "ok\n");
+
+ return 0;
+ }
+
+-static release_t mtdblock_release(struct inode *inode, struct file *file)
++static int mtdblock_release(struct mtd_blktrans_dev *mbd)
+ {
+- int dev;
+- struct mtdblk_dev *mtdblk;
+- DEBUG(MTD_DEBUG_LEVEL1, "mtdblock_release\n");
++ int dev = mbd->devnum;
++ struct mtdblk_dev *mtdblk = mtdblks[dev];
+
+- if (inode == NULL)
+- release_return(-ENODEV);
+-
+- dev = MINOR(inode->i_rdev);
+- mtdblk = mtdblks[dev];
++ DEBUG(MTD_DEBUG_LEVEL1, "mtdblock_release\n");
+
+ down(&mtdblk->cache_sem);
+ write_cached_data(mtdblk);
+ up(&mtdblk->cache_sem);
+
+- spin_lock(&mtdblks_lock);
+ if (!--mtdblk->count) {
+ /* It was the last usage. Free the device */
+ mtdblks[dev] = NULL;
+- spin_unlock(&mtdblks_lock);
+ if (mtdblk->mtd->sync)
+ mtdblk->mtd->sync(mtdblk->mtd);
+- put_mtd_device(mtdblk->mtd);
+ vfree(mtdblk->cache_data);
+ kfree(mtdblk);
+- } else {
+- spin_unlock(&mtdblks_lock);
+ }
+-
+ DEBUG(MTD_DEBUG_LEVEL1, "ok\n");
+
+- BLK_DEC_USE_COUNT;
+- release_return(0);
+-}
+-
+-
+-/*
+- * This is a special request_fn because it is executed in a process context
+- * to be able to sleep independently of the caller. The io_request_lock
+- * is held upon entry and exit.
+- * The head of our request queue is considered active so there is no need
+- * to dequeue requests before we are done.
+- */
+-static void handle_mtdblock_request(void)
+-{
+- struct request *req;
+- struct mtdblk_dev *mtdblk;
+- unsigned int res;
+-
+- for (;;) {
+- INIT_REQUEST;
+- req = CURRENT;
+- spin_unlock_irq(&io_request_lock);
+- mtdblk = mtdblks[MINOR(req->rq_dev)];
+- res = 0;
+-
+- if (MINOR(req->rq_dev) >= MAX_MTD_DEVICES)
+- panic("%s: minor out of bounds", __FUNCTION__);
+-
+- if ((req->sector + req->current_nr_sectors) > (mtdblk->mtd->size >> 9))
+- goto end_req;
+-
+- // Handle the request
+- switch (req->cmd)
+- {
+- int err;
+-
+- case READ:
+- down(&mtdblk->cache_sem);
+- err = do_cached_read (mtdblk, req->sector << 9,
+- req->current_nr_sectors << 9,
+- req->buffer);
+- up(&mtdblk->cache_sem);
+- if (!err)
+- res = 1;
+- break;
+-
+- case WRITE:
+- // Read only device
+- if ( !(mtdblk->mtd->flags & MTD_WRITEABLE) )
+- break;
+-
+- // Do the write
+- down(&mtdblk->cache_sem);
+- err = do_cached_write (mtdblk, req->sector << 9,
+- req->current_nr_sectors << 9,
+- req->buffer);
+- up(&mtdblk->cache_sem);
+- if (!err)
+- res = 1;
+- break;
+- }
+-
+-end_req:
+- spin_lock_irq(&io_request_lock);
+- end_request(res);
+- }
+-}
+-
+-static volatile int leaving = 0;
+-static DECLARE_MUTEX_LOCKED(thread_sem);
+-static DECLARE_WAIT_QUEUE_HEAD(thr_wq);
+-
+-int mtdblock_thread(void *dummy)
+-{
+- struct task_struct *tsk = current;
+- DECLARE_WAITQUEUE(wait, tsk);
+-
+- /* we might get involved when memory gets low, so use PF_MEMALLOC */
+- tsk->flags |= PF_MEMALLOC;
+- strcpy(tsk->comm, "mtdblockd");
+- spin_lock_irq(&tsk->sigmask_lock);
+- sigfillset(&tsk->blocked);
+- recalc_sigpending(tsk);
+- spin_unlock_irq(&tsk->sigmask_lock);
+- daemonize();
+-
+- while (!leaving) {
+- add_wait_queue(&thr_wq, &wait);
+- set_current_state(TASK_INTERRUPTIBLE);
+- spin_lock_irq(&io_request_lock);
+- if (QUEUE_EMPTY || QUEUE_PLUGGED) {
+- spin_unlock_irq(&io_request_lock);
+- schedule();
+- remove_wait_queue(&thr_wq, &wait);
+- } else {
+- remove_wait_queue(&thr_wq, &wait);
+- set_current_state(TASK_RUNNING);
+- handle_mtdblock_request();
+- spin_unlock_irq(&io_request_lock);
+- }
+- }
+-
+- up(&thread_sem);
+ return 0;
+ }
+
+-#if LINUX_VERSION_CODE < 0x20300
+-#define RQFUNC_ARG void
+-#else
+-#define RQFUNC_ARG request_queue_t *q
+-#endif
+-
+-static void mtdblock_request(RQFUNC_ARG)
++static int mtdblock_flush(struct mtd_blktrans_dev *dev)
+ {
+- /* Don't do anything, except wake the thread if necessary */
+- wake_up(&thr_wq);
+-}
++ struct mtdblk_dev *mtdblk = mtdblks[dev->devnum];
+
+-
+-static int mtdblock_ioctl(struct inode * inode, struct file * file,
+- unsigned int cmd, unsigned long arg)
+-{
+- struct mtdblk_dev *mtdblk;
+-
+- mtdblk = mtdblks[MINOR(inode->i_rdev)];
+-
+-#ifdef PARANOIA
+- if (!mtdblk)
+- BUG();
+-#endif
+-
+- switch (cmd) {
+- case BLKGETSIZE: /* Return device size */
+- return put_user((mtdblk->mtd->size >> 9), (unsigned long *) arg);
+-
+-#ifdef BLKGETSIZE64
+- case BLKGETSIZE64:
+- return put_user((u64)mtdblk->mtd->size, (u64 *)arg);
+-#endif
+-
+- case BLKFLSBUF:
+-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,2,0)
+- if(!capable(CAP_SYS_ADMIN))
+- return -EACCES;
+-#endif
+- fsync_dev(inode->i_rdev);
+- invalidate_buffers(inode->i_rdev);
+ down(&mtdblk->cache_sem);
+ write_cached_data(mtdblk);
+ up(&mtdblk->cache_sem);
++
+ if (mtdblk->mtd->sync)
+ mtdblk->mtd->sync(mtdblk->mtd);
+ return 0;
+-
+- default:
+- return -EINVAL;
+- }
+ }
+
+-#if LINUX_VERSION_CODE < 0x20326
+-static struct file_operations mtd_fops =
++static void mtdblock_add_mtd(struct mtd_blktrans_ops *tr, struct mtd_info *mtd)
+ {
+- open: mtdblock_open,
+- ioctl: mtdblock_ioctl,
+- release: mtdblock_release,
+- read: block_read,
+- write: block_write
+-};
+-#else
+-static struct block_device_operations mtd_fops =
+-{
+-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,14)
+- owner: THIS_MODULE,
+-#endif
+- open: mtdblock_open,
+- release: mtdblock_release,
+- ioctl: mtdblock_ioctl
+-};
+-#endif
++ struct mtd_blktrans_dev *dev = kmalloc(sizeof(*dev), GFP_KERNEL);
+
+-#ifdef CONFIG_DEVFS_FS
+-/* Notification that a new device has been added. Create the devfs entry for
+- * it. */
+-
+-static void mtd_notify_add(struct mtd_info* mtd)
+-{
+- char name[8];
+-
+- if (!mtd || mtd->type == MTD_ABSENT)
++ if (!dev)
+ return;
+
+- sprintf(name, "%d", mtd->index);
+- devfs_rw_handle[mtd->index] = devfs_register(devfs_dir_handle, name,
+- DEVFS_FL_DEFAULT, MTD_BLOCK_MAJOR, mtd->index,
+- S_IFBLK | S_IRUGO | S_IWUGO,
+- &mtd_fops, NULL);
+-}
+-
+-static void mtd_notify_remove(struct mtd_info* mtd)
+-{
+- if (!mtd || mtd->type == MTD_ABSENT)
+- return;
++ memset(dev, 0, sizeof(*dev));
+
+- devfs_unregister(devfs_rw_handle[mtd->index]);
+-}
+-#endif
++ dev->mtd = mtd;
++ dev->devnum = mtd->index;
++ dev->blksize = 512;
++ dev->size = mtd->size >> 9;
++ dev->tr = tr;
++
++ if (!(mtd->flags & MTD_WRITEABLE))
++ dev->readonly = 1;
++
++ add_mtd_blktrans_dev(dev);
++}
++
++static void mtdblock_remove_dev(struct mtd_blktrans_dev *dev)
++{
++ del_mtd_blktrans_dev(dev);
++ kfree(dev);
++}
++
++struct mtd_blktrans_ops mtdblock_tr = {
++ .name = "mtdblock",
++ .major = 31,
++ .part_bits = 0,
++ .open = mtdblock_open,
++ .flush = mtdblock_flush,
++ .release = mtdblock_release,
++ .readsect = mtdblock_readsect,
++ .writesect = mtdblock_writesect,
++ .add_mtd = mtdblock_add_mtd,
++ .remove_dev = mtdblock_remove_dev,
++ .owner = THIS_MODULE,
++};
+
+ int __init init_mtdblock(void)
+ {
+- int i;
+-
+- spin_lock_init(&mtdblks_lock);
+-#ifdef CONFIG_DEVFS_FS
+- if (devfs_register_blkdev(MTD_BLOCK_MAJOR, DEVICE_NAME, &mtd_fops))
+- {
+- printk(KERN_NOTICE "Can't allocate major number %d for Memory Technology Devices.\n",
+- MTD_BLOCK_MAJOR);
+- return -EAGAIN;
+- }
+-
+- devfs_dir_handle = devfs_mk_dir(NULL, DEVICE_NAME, NULL);
+- register_mtd_user(&notifier);
+-#else
+- if (register_blkdev(MAJOR_NR,DEVICE_NAME,&mtd_fops)) {
+- printk(KERN_NOTICE "Can't allocate major number %d for Memory Technology Devices.\n",
+- MTD_BLOCK_MAJOR);
+- return -EAGAIN;
+- }
+-#endif
+-
+- /* We fill it in at open() time. */
+- for (i=0; i< MAX_MTD_DEVICES; i++) {
+- mtd_sizes[i] = 0;
+- mtd_blksizes[i] = BLOCK_SIZE;
+- }
+- init_waitqueue_head(&thr_wq);
+- /* Allow the block size to default to BLOCK_SIZE. */
+- blksize_size[MAJOR_NR] = mtd_blksizes;
+- blk_size[MAJOR_NR] = mtd_sizes;
+-
+- blk_init_queue(BLK_DEFAULT_QUEUE(MAJOR_NR), &mtdblock_request);
+- kernel_thread (mtdblock_thread, NULL, CLONE_FS|CLONE_FILES|CLONE_SIGHAND);
+- return 0;
++ return register_mtd_blktrans(&mtdblock_tr);
+ }
+
+ static void __exit cleanup_mtdblock(void)
+ {
+- leaving = 1;
+- wake_up(&thr_wq);
+- down(&thread_sem);
+-#ifdef CONFIG_DEVFS_FS
+- unregister_mtd_user(&notifier);
+- devfs_unregister(devfs_dir_handle);
+- devfs_unregister_blkdev(MTD_BLOCK_MAJOR, DEVICE_NAME);
+-#else
+- unregister_blkdev(MAJOR_NR,DEVICE_NAME);
+-#endif
+- blk_cleanup_queue(BLK_DEFAULT_QUEUE(MAJOR_NR));
+- blksize_size[MAJOR_NR] = NULL;
+- blk_size[MAJOR_NR] = NULL;
++ deregister_mtd_blktrans(&mtdblock_tr);
+ }
+
+ module_init(init_mtdblock);
+diff -Nurb linux-mips-2.4.27/drivers/mtd/mtdblock_ro.c linux/drivers/mtd/mtdblock_ro.c
+--- linux-mips-2.4.27/drivers/mtd/mtdblock_ro.c 2003-02-26 01:53:49.000000000 +0100
++++ linux/drivers/mtd/mtdblock_ro.c 2004-11-19 10:25:11.645238400 +0100
+@@ -1,301 +1,87 @@
+ /*
+- * $Id: mtdblock_ro.c,v 1.12 2001/11/20 11:42:33 dwmw2 Exp $
++ * $Id: mtdblock_ro.c,v 1.18 2003/06/23 12:00:08 dwmw2 Exp $
+ *
+- * Read-only version of the mtdblock device, without the
+- * read/erase/modify/writeback stuff
++ * (C) 2003 David Woodhouse <dwmw2@infradead.org>
++ *
++ * Simple read-only (writable only for RAM) mtdblock driver
+ */
+
+-#ifdef MTDBLOCK_DEBUG
+-#define DEBUGLVL debug
+-#endif
+-
+-
+-#include <linux/module.h>
+-#include <linux/types.h>
+-
++#include <linux/init.h>
++#include <linux/slab.h>
+ #include <linux/mtd/mtd.h>
+-#include <linux/mtd/compatmac.h>
+-
+-#define MAJOR_NR MTD_BLOCK_MAJOR
+-#define DEVICE_NAME "mtdblock"
+-#define DEVICE_REQUEST mtdblock_request
+-#define DEVICE_NR(device) (device)
+-#define DEVICE_ON(device)
+-#define DEVICE_OFF(device)
+-#define DEVICE_NO_RANDOM
+-#include <linux/blk.h>
+-
+-#if LINUX_VERSION_CODE < 0x20300
+-#define RQFUNC_ARG void
+-#define blkdev_dequeue_request(req) do {CURRENT = req->next;} while (0)
+-#else
+-#define RQFUNC_ARG request_queue_t *q
+-#endif
+-
+-#ifdef MTDBLOCK_DEBUG
+-static int debug = MTDBLOCK_DEBUG;
+-MODULE_PARM(debug, "i");
+-#endif
+-
+-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,14)
+-#define BLK_INC_USE_COUNT MOD_INC_USE_COUNT
+-#define BLK_DEC_USE_COUNT MOD_DEC_USE_COUNT
+-#else
+-#define BLK_INC_USE_COUNT do {} while(0)
+-#define BLK_DEC_USE_COUNT do {} while(0)
+-#endif
+-
+-static int mtd_sizes[MAX_MTD_DEVICES];
++#include <linux/mtd/blktrans.h>
+
+-
+-static int mtdblock_open(struct inode *inode, struct file *file)
++static int mtdblock_readsect(struct mtd_blktrans_dev *dev,
++ unsigned long block, char *buf)
+ {
+- struct mtd_info *mtd = NULL;
+-
+- int dev;
+-
+- DEBUG(1,"mtdblock_open\n");
+-
+- if (inode == 0)
+- return -EINVAL;
+-
+- dev = MINOR(inode->i_rdev);
+-
+- mtd = get_mtd_device(NULL, dev);
+- if (!mtd)
+- return -EINVAL;
+- if (MTD_ABSENT == mtd->type) {
+- put_mtd_device(mtd);
+- return -EINVAL;
+- }
+-
+- BLK_INC_USE_COUNT;
+-
+- mtd_sizes[dev] = mtd->size>>9;
+-
+- DEBUG(1, "ok\n");
++ size_t retlen;
+
++ if (dev->mtd->read(dev->mtd, (block * 512), 512, &retlen, buf))
++ return 1;
+ return 0;
+ }
+
+-static release_t mtdblock_release(struct inode *inode, struct file *file)
++static int mtdblock_writesect(struct mtd_blktrans_dev *dev,
++ unsigned long block, char *buf)
+ {
+- int dev;
+- struct mtd_info *mtd;
+-
+- DEBUG(1, "mtdblock_release\n");
+-
+- if (inode == NULL)
+- release_return(-ENODEV);
+-
+- dev = MINOR(inode->i_rdev);
+- mtd = __get_mtd_device(NULL, dev);
+-
+- if (!mtd) {
+- printk(KERN_WARNING "MTD device is absent on mtd_release!\n");
+- BLK_DEC_USE_COUNT;
+- release_return(-ENODEV);
+- }
+-
+- if (mtd->sync)
+- mtd->sync(mtd);
+-
+- put_mtd_device(mtd);
+-
+- DEBUG(1, "ok\n");
++ size_t retlen;
+
+- BLK_DEC_USE_COUNT;
+- release_return(0);
++ if (dev->mtd->write(dev->mtd, (block * 512), 512, &retlen, buf))
++ return 1;
++ return 0;
+ }
+
+-
+-static void mtdblock_request(RQFUNC_ARG)
++static void mtdblock_add_mtd(struct mtd_blktrans_ops *tr, struct mtd_info *mtd)
+ {
+- struct request *current_request;
+- unsigned int res = 0;
+- struct mtd_info *mtd;
+-
+- while (1)
+- {
+- /* Grab the Request and unlink it from the request list, INIT_REQUEST
+- will execute a return if we are done. */
+- INIT_REQUEST;
+- current_request = CURRENT;
+-
+- if (MINOR(current_request->rq_dev) >= MAX_MTD_DEVICES)
+- {
+- printk("mtd: Unsupported device!\n");
+- end_request(0);
+- continue;
+- }
+-
+- // Grab our MTD structure
+-
+- mtd = __get_mtd_device(NULL, MINOR(current_request->rq_dev));
+- if (!mtd) {
+- printk("MTD device %d doesn't appear to exist any more\n", CURRENT_DEV);
+- end_request(0);
+- }
+-
+- if (current_request->sector << 9 > mtd->size ||
+- (current_request->sector + current_request->current_nr_sectors) << 9 > mtd->size)
+- {
+- printk("mtd: Attempt to read past end of device!\n");
+- printk("size: %x, sector: %lx, nr_sectors %lx\n", mtd->size,
+- current_request->sector, current_request->current_nr_sectors);
+- end_request(0);
+- continue;
+- }
+-
+- /* Remove the request we are handling from the request list so nobody messes
+- with it */
+-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,2,0)
+- /* Now drop the lock that the ll_rw_blk functions grabbed for us
+- and process the request. This is necessary due to the extreme time
+- we spend processing it. */
+- spin_unlock_irq(&io_request_lock);
+-#endif
+-
+- // Handle the request
+- switch (current_request->cmd)
+- {
+- size_t retlen;
++ struct mtd_blktrans_dev *dev = kmalloc(sizeof(*dev), GFP_KERNEL);
+
+- case READ:
+- if (MTD_READ(mtd,current_request->sector<<9,
+- current_request->current_nr_sectors << 9,
+- &retlen, current_request->buffer) == 0)
+- res = 1;
+- else
+- res = 0;
+- break;
++ if (!dev)
++ return;
+
+- case WRITE:
++ memset(dev, 0, sizeof(*dev));
+
+- /* printk("mtdblock_request WRITE sector=%d(%d)\n",current_request->sector,
+- current_request->current_nr_sectors);
+- */
++ dev->mtd = mtd;
++ dev->devnum = mtd->index;
++ dev->blksize = 512;
++ dev->size = mtd->size >> 9;
++ dev->tr = tr;
++ if ((mtd->flags & (MTD_CLEAR_BITS|MTD_SET_BITS|MTD_WRITEABLE)) !=
++ (MTD_CLEAR_BITS|MTD_SET_BITS|MTD_WRITEABLE))
++ dev->readonly = 1;
+
+- // Read only device
+- if ((mtd->flags & MTD_CAP_RAM) == 0)
+- {
+- res = 0;
+- break;
+- }
+-
+- // Do the write
+- if (MTD_WRITE(mtd,current_request->sector<<9,
+- current_request->current_nr_sectors << 9,
+- &retlen, current_request->buffer) == 0)
+- res = 1;
+- else
+- res = 0;
+- break;
+-
+- // Shouldn't happen
+- default:
+- printk("mtd: unknown request\n");
+- break;
+- }
+-
+- // Grab the lock and re-thread the item onto the linked list
+-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,2,0)
+- spin_lock_irq(&io_request_lock);
+-#endif
+- end_request(res);
+- }
++ add_mtd_blktrans_dev(dev);
+ }
+
+-
+-
+-static int mtdblock_ioctl(struct inode * inode, struct file * file,
+- unsigned int cmd, unsigned long arg)
++static void mtdblock_remove_dev(struct mtd_blktrans_dev *dev)
+ {
+- struct mtd_info *mtd;
+-
+- mtd = __get_mtd_device(NULL, MINOR(inode->i_rdev));
+-
+- if (!mtd) return -EINVAL;
+-
+- switch (cmd) {
+- case BLKGETSIZE: /* Return device size */
+- return put_user((mtd->size >> 9), (unsigned long *) arg);
+-
+-#ifdef BLKGETSIZE64
+- case BLKGETSIZE64:
+- return put_user((u64)mtd->size, (u64 *)arg);
+-#endif
+-
+- case BLKFLSBUF:
+-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,2,0)
+- if(!capable(CAP_SYS_ADMIN)) return -EACCES;
+-#endif
+- fsync_dev(inode->i_rdev);
+- invalidate_buffers(inode->i_rdev);
+- if (mtd->sync)
+- mtd->sync(mtd);
+- return 0;
+-
+- default:
+- return -ENOTTY;
+- }
++ del_mtd_blktrans_dev(dev);
++ kfree(dev);
+ }
+
+-#if LINUX_VERSION_CODE < 0x20326
+-static struct file_operations mtd_fops =
+-{
+- open: mtdblock_open,
+- ioctl: mtdblock_ioctl,
+- release: mtdblock_release,
+- read: block_read,
+- write: block_write
+-};
+-#else
+-static struct block_device_operations mtd_fops =
+-{
+-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,14)
+- owner: THIS_MODULE,
+-#endif
+- open: mtdblock_open,
+- release: mtdblock_release,
+- ioctl: mtdblock_ioctl
++struct mtd_blktrans_ops mtdblock_tr = {
++ .name = "mtdblock",
++ .major = 31,
++ .part_bits = 0,
++ .readsect = mtdblock_readsect,
++ .writesect = mtdblock_writesect,
++ .add_mtd = mtdblock_add_mtd,
++ .remove_dev = mtdblock_remove_dev,
++ .owner = THIS_MODULE,
+ };
+-#endif
+
+-int __init init_mtdblock(void)
++static int __init mtdblock_init(void)
+ {
+- int i;
+-
+- if (register_blkdev(MAJOR_NR,DEVICE_NAME,&mtd_fops)) {
+- printk(KERN_NOTICE "Can't allocate major number %d for Memory Technology Devices.\n",
+- MTD_BLOCK_MAJOR);
+- return -EAGAIN;
+- }
+-
+- /* We fill it in at open() time. */
+- for (i=0; i< MAX_MTD_DEVICES; i++) {
+- mtd_sizes[i] = 0;
+- }
+-
+- /* Allow the block size to default to BLOCK_SIZE. */
+- blksize_size[MAJOR_NR] = NULL;
+- blk_size[MAJOR_NR] = mtd_sizes;
+-
+- blk_init_queue(BLK_DEFAULT_QUEUE(MAJOR_NR), &mtdblock_request);
+- return 0;
++ return register_mtd_blktrans(&mtdblock_tr);
+ }
+
+-static void __exit cleanup_mtdblock(void)
++static void __exit mtdblock_exit(void)
+ {
+- unregister_blkdev(MAJOR_NR,DEVICE_NAME);
+- blk_size[MAJOR_NR] = NULL;
+- blk_cleanup_queue(BLK_DEFAULT_QUEUE(MAJOR_NR));
++ deregister_mtd_blktrans(&mtdblock_tr);
+ }
+
+-module_init(init_mtdblock);
+-module_exit(cleanup_mtdblock);
+-
++module_init(mtdblock_init);
++module_exit(mtdblock_exit);
+
+ MODULE_LICENSE("GPL");
+-MODULE_AUTHOR("Erwin Authried <eauth@softsys.co.at> et al.");
++MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org>");
+ MODULE_DESCRIPTION("Simple read-only block device emulation access to MTD devices");
+diff -Nurb linux-mips-2.4.27/drivers/mtd/mtdchar.c linux/drivers/mtd/mtdchar.c
+--- linux-mips-2.4.27/drivers/mtd/mtdchar.c 2004-08-14 20:38:51.000000000 +0200
++++ linux/drivers/mtd/mtdchar.c 2004-11-19 10:25:11.647238096 +0100
+@@ -1,8 +1,7 @@
+ /*
+- * $Id: mtdchar.c,v 1.49 2003/01/24 12:02:58 dwmw2 Exp $
++ * $Id: mtdchar.c,v 1.56 2003/11/14 19:50:03 thayne Exp $
+ *
+ * Character-device access to raw MTD devices.
+- * Pure 2.4 version - compatibility cruft removed to mtdchar-compat.c
+ *
+ */
+
+@@ -10,7 +9,11 @@
+ #include <linux/kernel.h>
+ #include <linux/module.h>
+ #include <linux/mtd/mtd.h>
++#include <linux/mtd/compatmac.h>
+ #include <linux/slab.h>
++#include <linux/init.h>
++#include <linux/fs.h>
++#include <asm/uaccess.h>
+
+ #ifdef CONFIG_DEVFS_FS
+ #include <linux/devfs_fs_kernel.h>
+@@ -18,8 +21,8 @@
+ static void mtd_notify_remove(struct mtd_info* mtd);
+
+ static struct mtd_notifier notifier = {
+- add: mtd_notify_add,
+- remove: mtd_notify_remove,
++ .add = mtd_notify_add,
++ .remove = mtd_notify_remove,
+ };
+
+ static devfs_handle_t devfs_dir_handle;
+@@ -60,7 +63,7 @@
+
+ static int mtd_open(struct inode *inode, struct file *file)
+ {
+- int minor = minor(inode->i_rdev);
++ int minor = iminor(inode);
+ int devnum = minor >> 1;
+ struct mtd_info *mtd;
+
+@@ -125,15 +128,11 @@
+ int ret=0;
+ int len;
+ char *kbuf;
+- loff_t pos = *ppos;
+
+ DEBUG(MTD_DEBUG_LEVEL0,"MTD_read\n");
+
+- if (pos < 0 || pos > mtd->size)
+- return 0;
+-
+- if (count > mtd->size - pos)
+- count = mtd->size - pos;
++ if (*ppos + count > mtd->size)
++ count = mtd->size - *ppos;
+
+ if (!count)
+ return 0;
+@@ -150,9 +149,9 @@
+ if (!kbuf)
+ return -ENOMEM;
+
+- ret = MTD_READ(mtd, pos, len, &retlen, kbuf);
++ ret = MTD_READ(mtd, *ppos, len, &retlen, kbuf);
+ if (!ret) {
+- pos += retlen;
++ *ppos += retlen;
+ if (copy_to_user(buf, kbuf, retlen)) {
+ kfree(kbuf);
+ return -EFAULT;
+@@ -171,8 +170,6 @@
+ kfree(kbuf);
+ }
+
+- *ppos = pos;
+-
+ return total_retlen;
+ } /* mtd_read */
+
+@@ -182,17 +179,16 @@
+ char *kbuf;
+ size_t retlen;
+ size_t total_retlen=0;
+- loff_t pos = *ppos;
+ int ret=0;
+ int len;
+
+ DEBUG(MTD_DEBUG_LEVEL0,"MTD_write\n");
+
+- if (pos < 0 || pos >= mtd->size)
++ if (*ppos == mtd->size)
+ return -ENOSPC;
+
+- if (count > mtd->size - pos)
+- count = mtd->size - pos;
++ if (*ppos + count > mtd->size)
++ count = mtd->size - *ppos;
+
+ if (!count)
+ return 0;
+@@ -214,9 +210,9 @@
+ return -EFAULT;
+ }
+
+- ret = (*(mtd->write))(mtd, pos, len, &retlen, kbuf);
++ ret = (*(mtd->write))(mtd, *ppos, len, &retlen, kbuf);
+ if (!ret) {
+- pos += retlen;
++ *ppos += retlen;
+ total_retlen += retlen;
+ count -= retlen;
+ buf += retlen;
+@@ -228,7 +224,6 @@
+
+ kfree(kbuf);
+ }
+- *ppos = pos;
+
+ return total_retlen;
+ } /* mtd_write */
+@@ -450,81 +445,13 @@
+ break;
+ }
+
+- case MEMWRITEDATA:
+- {
+- struct mtd_oob_buf buf;
+- void *databuf;
+- ssize_t retlen;
+-
+- if (copy_from_user(&buf, (struct mtd_oob_buf *)arg, sizeof(struct mtd_oob_buf)))
+- return -EFAULT;
+-
+- if (buf.length > 0x4096)
+- return -EINVAL;
+-
+- if (!mtd->write_ecc)
+- ret = -EOPNOTSUPP;
+- else
+- ret = verify_area(VERIFY_READ, (char *)buf.ptr, buf.length);
+-
+- if (ret)
+- return ret;
+-
+- databuf = kmalloc(buf.length, GFP_KERNEL);
+- if (!databuf)
+- return -ENOMEM;
+-
+- if (copy_from_user(databuf, buf.ptr, buf.length)) {
+- kfree(databuf);
+- return -EFAULT;
+- }
+-
+- ret = (mtd->write_ecc)(mtd, buf.start, buf.length, &retlen, databuf, NULL, 0);
+-
+- if (copy_to_user((void *)arg + sizeof(u_int32_t), &retlen, sizeof(u_int32_t)))
+- ret = -EFAULT;
+-
+- kfree(databuf);
+- break;
+-
+- }
+-
+- case MEMREADDATA:
++ case MEMSETOOBSEL:
+ {
+- struct mtd_oob_buf buf;
+- void *databuf;
+- ssize_t retlen = 0;
+-
+- if (copy_from_user(&buf, (struct mtd_oob_buf *)arg, sizeof(struct mtd_oob_buf)))
++ if (copy_from_user(&mtd->oobinfo ,(void *)arg, sizeof(struct nand_oobinfo)))
+ return -EFAULT;
+-
+- if (buf.length > 0x4096)
+- return -EINVAL;
+-
+- if (!mtd->read_ecc)
+- ret = -EOPNOTSUPP;
+- else
+- ret = verify_area(VERIFY_WRITE, (char *)buf.ptr, buf.length);
+-
+- if (ret)
+- return ret;
+-
+- databuf = kmalloc(buf.length, GFP_KERNEL);
+- if (!databuf)
+- return -ENOMEM;
+-
+- ret = (mtd->read_ecc)(mtd, buf.start, buf.length, &retlen, databuf, NULL, 0);
+-
+- if (copy_to_user((void *)arg + sizeof(u_int32_t), &retlen, sizeof(u_int32_t)))
+- ret = -EFAULT;
+- else if (retlen && copy_to_user(buf.ptr, databuf, retlen))
+- ret = -EFAULT;
+-
+- kfree(databuf);
+ break;
+ }
+
+-
+ default:
+ DEBUG(MTD_DEBUG_LEVEL0, "Invalid ioctl %x (MEMGETINFO = %x)\n", cmd, MEMGETINFO);
+ ret = -ENOTTY;
+@@ -534,13 +461,13 @@
+ } /* memory_ioctl */
+
+ static struct file_operations mtd_fops = {
+- owner: THIS_MODULE,
+- llseek: mtd_lseek, /* lseek */
+- read: mtd_read, /* read */
+- write: mtd_write, /* write */
+- ioctl: mtd_ioctl, /* ioctl */
+- open: mtd_open, /* open */
+- release: mtd_close, /* release */
++ .owner = THIS_MODULE,
++ .llseek = mtd_lseek,
++ .read = mtd_read,
++ .write = mtd_write,
++ .ioctl = mtd_ioctl,
++ .open = mtd_open,
++ .release = mtd_close,
+ };
+
+
+@@ -580,26 +507,18 @@
+
+ static int __init init_mtdchar(void)
+ {
+-#ifdef CONFIG_DEVFS_FS
+- if (devfs_register_chrdev(MTD_CHAR_MAJOR, "mtd", &mtd_fops))
++ if (register_chrdev(MTD_CHAR_MAJOR, "mtd", &mtd_fops))
+ {
+ printk(KERN_NOTICE "Can't allocate major number %d for Memory Technology Devices.\n",
+ MTD_CHAR_MAJOR);
+ return -EAGAIN;
+ }
+
++#ifdef CONFIG_DEVFS_FS
+ devfs_dir_handle = devfs_mk_dir(NULL, "mtd", NULL);
+
+ register_mtd_user(&notifier);
+-#else
+- if (register_chrdev(MTD_CHAR_MAJOR, "mtd", &mtd_fops))
+- {
+- printk(KERN_NOTICE "Can't allocate major number %d for Memory Technology Devices.\n",
+- MTD_CHAR_MAJOR);
+- return -EAGAIN;
+- }
+ #endif
+-
+ return 0;
+ }
+
+@@ -608,10 +527,8 @@
+ #ifdef CONFIG_DEVFS_FS
+ unregister_mtd_user(&notifier);
+ devfs_unregister(devfs_dir_handle);
+- devfs_unregister_chrdev(MTD_CHAR_MAJOR, "mtd");
+-#else
+- unregister_chrdev(MTD_CHAR_MAJOR, "mtd");
+ #endif
++ unregister_chrdev(MTD_CHAR_MAJOR, "mtd");
+ }
+
+ module_init(init_mtdchar);
+diff -Nurb linux-mips-2.4.27/drivers/mtd/mtdconcat.c linux/drivers/mtd/mtdconcat.c
+--- linux-mips-2.4.27/drivers/mtd/mtdconcat.c 2003-02-26 01:53:49.000000000 +0100
++++ linux/drivers/mtd/mtdconcat.c 2004-11-19 10:25:11.649237792 +0100
+@@ -3,9 +3,11 @@
+ *
+ * (C) 2002 Robert Kaiser <rkaiser@sysgo.de>
+ *
++ * NAND support by Christian Gan <cgan@iders.ca>
++ *
+ * This code is GPL
+ *
+- * $Id: mtdconcat.c,v 1.3 2002/05/21 21:04:25 dwmw2 Exp $
++ * $Id: mtdconcat.c,v 1.8 2003/06/30 11:01:26 dwmw2 Exp $
+ */
+
+ #include <linux/module.h>
+@@ -35,21 +37,20 @@
+ #define SIZEOF_STRUCT_MTD_CONCAT(num_subdev) \
+ ((sizeof(struct mtd_concat) + (num_subdev) * sizeof(struct mtd_info *)))
+
+-
+ /*
+ * Given a pointer to the MTD object in the mtd_concat structure,
+ * we can retrieve the pointer to that structure with this macro.
+ */
+ #define CONCAT(x) ((struct mtd_concat *)(x))
+
+-
+ /*
+ * MTD methods which look up the relevant subdevice, translate the
+ * effective address and pass through to the subdevice.
+ */
+
+-static int concat_read (struct mtd_info *mtd, loff_t from, size_t len,
+- size_t *retlen, u_char *buf)
++static int
++concat_read(struct mtd_info *mtd, loff_t from, size_t len,
++ size_t * retlen, u_char * buf)
+ {
+ struct mtd_concat *concat = CONCAT(mtd);
+ int err = -EINVAL;
+@@ -57,43 +58,43 @@
+
+ *retlen = 0;
+
+- for(i = 0; i < concat->num_subdev; i++)
+- {
++ for (i = 0; i < concat->num_subdev; i++) {
+ struct mtd_info *subdev = concat->subdev[i];
+ size_t size, retsize;
+
+- if (from >= subdev->size)
+- {
++ if (from >= subdev->size) {
++ /* Not destined for this subdev */
+ size = 0;
+ from -= subdev->size;
++ continue;
+ }
+- else
+- {
+ if (from + len > subdev->size)
++ /* First part goes into this subdev */
+ size = subdev->size - from;
+ else
++ /* Entire transaction goes into this subdev */
+ size = len;
+
+ err = subdev->read(subdev, from, size, &retsize, buf);
+
+- if(err)
++ if (err)
+ break;
+
+ *retlen += retsize;
+ len -= size;
+- if(len == 0)
++ if (len == 0)
+ break;
+
+ err = -EINVAL;
+ buf += size;
+ from = 0;
+ }
+- }
+ return err;
+ }
+
+-static int concat_write (struct mtd_info *mtd, loff_t to, size_t len,
+- size_t *retlen, const u_char *buf)
++static int
++concat_write(struct mtd_info *mtd, loff_t to, size_t len,
++ size_t * retlen, const u_char * buf)
+ {
+ struct mtd_concat *concat = CONCAT(mtd);
+ int err = -EINVAL;
+@@ -104,18 +105,15 @@
+
+ *retlen = 0;
+
+- for(i = 0; i < concat->num_subdev; i++)
+- {
++ for (i = 0; i < concat->num_subdev; i++) {
+ struct mtd_info *subdev = concat->subdev[i];
+ size_t size, retsize;
+
+- if (to >= subdev->size)
+- {
++ if (to >= subdev->size) {
+ size = 0;
+ to -= subdev->size;
++ continue;
+ }
+- else
+- {
+ if (to + len > subdev->size)
+ size = subdev->size - to;
+ else
+@@ -126,25 +124,232 @@
+ else
+ err = subdev->write(subdev, to, size, &retsize, buf);
+
+- if(err)
++ if (err)
+ break;
+
+ *retlen += retsize;
+ len -= size;
+- if(len == 0)
++ if (len == 0)
+ break;
+
+ err = -EINVAL;
+ buf += size;
+ to = 0;
+ }
++ return err;
++}
++
++static int
++concat_read_ecc(struct mtd_info *mtd, loff_t from, size_t len,
++ size_t * retlen, u_char * buf, u_char * eccbuf,
++ struct nand_oobinfo *oobsel)
++{
++ struct mtd_concat *concat = CONCAT(mtd);
++ int err = -EINVAL;
++ int i;
++
++ *retlen = 0;
++
++ for (i = 0; i < concat->num_subdev; i++) {
++ struct mtd_info *subdev = concat->subdev[i];
++ size_t size, retsize;
++
++ if (from >= subdev->size) {
++ /* Not destined for this subdev */
++ size = 0;
++ from -= subdev->size;
++ continue;
++ }
++
++ if (from + len > subdev->size)
++ /* First part goes into this subdev */
++ size = subdev->size - from;
++ else
++ /* Entire transaction goes into this subdev */
++ size = len;
++
++ if (subdev->read_ecc)
++ err = subdev->read_ecc(subdev, from, size,
++ &retsize, buf, eccbuf, oobsel);
++ else
++ err = -EINVAL;
++
++ if (err)
++ break;
++
++ *retlen += retsize;
++ len -= size;
++ if (len == 0)
++ break;
++
++ err = -EINVAL;
++ buf += size;
++ if (eccbuf) {
++ eccbuf += subdev->oobsize;
++ /* in nand.c at least, eccbufs are
++ tagged with 2 (int)eccstatus'; we
++ must account for these */
++ eccbuf += 2 * (sizeof (int));
++ }
++ from = 0;
+ }
+ return err;
+ }
+
+-static void concat_erase_callback (struct erase_info *instr)
++static int
++concat_write_ecc(struct mtd_info *mtd, loff_t to, size_t len,
++ size_t * retlen, const u_char * buf, u_char * eccbuf,
++ struct nand_oobinfo *oobsel)
+ {
+- wake_up((wait_queue_head_t *)instr->priv);
++ struct mtd_concat *concat = CONCAT(mtd);
++ int err = -EINVAL;
++ int i;
++
++ if (!(mtd->flags & MTD_WRITEABLE))
++ return -EROFS;
++
++ *retlen = 0;
++
++ for (i = 0; i < concat->num_subdev; i++) {
++ struct mtd_info *subdev = concat->subdev[i];
++ size_t size, retsize;
++
++ if (to >= subdev->size) {
++ size = 0;
++ to -= subdev->size;
++ continue;
++ }
++ if (to + len > subdev->size)
++ size = subdev->size - to;
++ else
++ size = len;
++
++ if (!(subdev->flags & MTD_WRITEABLE))
++ err = -EROFS;
++ else if (subdev->write_ecc)
++ err = subdev->write_ecc(subdev, to, size,
++ &retsize, buf, eccbuf, oobsel);
++ else
++ err = -EINVAL;
++
++ if (err)
++ break;
++
++ *retlen += retsize;
++ len -= size;
++ if (len == 0)
++ break;
++
++ err = -EINVAL;
++ buf += size;
++ if (eccbuf)
++ eccbuf += subdev->oobsize;
++ to = 0;
++ }
++ return err;
++}
++
++static int
++concat_read_oob(struct mtd_info *mtd, loff_t from, size_t len,
++ size_t * retlen, u_char * buf)
++{
++ struct mtd_concat *concat = CONCAT(mtd);
++ int err = -EINVAL;
++ int i;
++
++ *retlen = 0;
++
++ for (i = 0; i < concat->num_subdev; i++) {
++ struct mtd_info *subdev = concat->subdev[i];
++ size_t size, retsize;
++
++ if (from >= subdev->size) {
++ /* Not destined for this subdev */
++ size = 0;
++ from -= subdev->size;
++ continue;
++ }
++ if (from + len > subdev->size)
++ /* First part goes into this subdev */
++ size = subdev->size - from;
++ else
++ /* Entire transaction goes into this subdev */
++ size = len;
++
++ if (subdev->read_oob)
++ err = subdev->read_oob(subdev, from, size,
++ &retsize, buf);
++ else
++ err = -EINVAL;
++
++ if (err)
++ break;
++
++ *retlen += retsize;
++ len -= size;
++ if (len == 0)
++ break;
++
++ err = -EINVAL;
++ buf += size;
++ from = 0;
++ }
++ return err;
++}
++
++static int
++concat_write_oob(struct mtd_info *mtd, loff_t to, size_t len,
++ size_t * retlen, const u_char * buf)
++{
++ struct mtd_concat *concat = CONCAT(mtd);
++ int err = -EINVAL;
++ int i;
++
++ if (!(mtd->flags & MTD_WRITEABLE))
++ return -EROFS;
++
++ *retlen = 0;
++
++ for (i = 0; i < concat->num_subdev; i++) {
++ struct mtd_info *subdev = concat->subdev[i];
++ size_t size, retsize;
++
++ if (to >= subdev->size) {
++ size = 0;
++ to -= subdev->size;
++ continue;
++ }
++ if (to + len > subdev->size)
++ size = subdev->size - to;
++ else
++ size = len;
++
++ if (!(subdev->flags & MTD_WRITEABLE))
++ err = -EROFS;
++ else if (subdev->write_oob)
++ err = subdev->write_oob(subdev, to, size, &retsize,
++ buf);
++ else
++ err = -EINVAL;
++
++ if (err)
++ break;
++
++ *retlen += retsize;
++ len -= size;
++ if (len == 0)
++ break;
++
++ err = -EINVAL;
++ buf += size;
++ to = 0;
++ }
++ return err;
++}
++
++static void concat_erase_callback(struct erase_info *instr)
++{
++ wake_up((wait_queue_head_t *) instr->priv);
+ }
+
+ static int concat_dev_erase(struct mtd_info *mtd, struct erase_info *erase)
+@@ -160,18 +365,18 @@
+
+ erase->mtd = mtd;
+ erase->callback = concat_erase_callback;
+- erase->priv = (unsigned long)&waitq;
++ erase->priv = (unsigned long) &waitq;
+
+ /*
+ * FIXME: Allow INTERRUPTIBLE. Which means
+ * not having the wait_queue head on the stack.
+ */
+ err = mtd->erase(mtd, erase);
+- if (!err)
+- {
++ if (!err) {
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ add_wait_queue(&waitq, &wait);
+- if (erase->state != MTD_ERASE_DONE && erase->state != MTD_ERASE_FAILED)
++ if (erase->state != MTD_ERASE_DONE
++ && erase->state != MTD_ERASE_FAILED)
+ schedule();
+ remove_wait_queue(&waitq, &wait);
+ set_current_state(TASK_RUNNING);
+@@ -181,7 +386,7 @@
+ return err;
+ }
+
+-static int concat_erase (struct mtd_info *mtd, struct erase_info *instr)
++static int concat_erase(struct mtd_info *mtd, struct erase_info *instr)
+ {
+ struct mtd_concat *concat = CONCAT(mtd);
+ struct mtd_info *subdev;
+@@ -192,10 +397,10 @@
+ if (!(mtd->flags & MTD_WRITEABLE))
+ return -EROFS;
+
+- if(instr->addr > concat->mtd.size)
++ if (instr->addr > concat->mtd.size)
+ return -EINVAL;
+
+- if(instr->len + instr->addr > concat->mtd.size)
++ if (instr->len + instr->addr > concat->mtd.size)
+ return -EINVAL;
+
+ /*
+@@ -204,23 +409,22 @@
+ * region info rather than looking at each particular sub-device
+ * in turn.
+ */
+- if (!concat->mtd.numeraseregions)
+- { /* the easy case: device has uniform erase block size */
+- if(instr->addr & (concat->mtd.erasesize - 1))
++ if (!concat->mtd.numeraseregions) {
++ /* the easy case: device has uniform erase block size */
++ if (instr->addr & (concat->mtd.erasesize - 1))
+ return -EINVAL;
+- if(instr->len & (concat->mtd.erasesize - 1))
++ if (instr->len & (concat->mtd.erasesize - 1))
+ return -EINVAL;
+- }
+- else
+- { /* device has variable erase size */
+- struct mtd_erase_region_info *erase_regions = concat->mtd.eraseregions;
++ } else {
++ /* device has variable erase size */
++ struct mtd_erase_region_info *erase_regions =
++ concat->mtd.eraseregions;
+
+ /*
+ * Find the erase region where the to-be-erased area begins:
+ */
+- for(i = 0; i < concat->mtd.numeraseregions &&
+- instr->addr >= erase_regions[i].offset; i++)
+- ;
++ for (i = 0; i < concat->mtd.numeraseregions &&
++ instr->addr >= erase_regions[i].offset; i++) ;
+ --i;
+
+ /*
+@@ -228,25 +432,26 @@
+ * to-be-erased area begins. Verify that the starting
+ * offset is aligned to this region's erase size:
+ */
+- if (instr->addr & (erase_regions[i].erasesize-1))
++ if (instr->addr & (erase_regions[i].erasesize - 1))
+ return -EINVAL;
+
+ /*
+ * now find the erase region where the to-be-erased area ends:
+ */
+- for(; i < concat->mtd.numeraseregions &&
+- (instr->addr + instr->len) >= erase_regions[i].offset ; ++i)
+- ;
++ for (; i < concat->mtd.numeraseregions &&
++ (instr->addr + instr->len) >= erase_regions[i].offset;
++ ++i) ;
+ --i;
+ /*
+ * check if the ending offset is aligned to this region's erase size
+ */
+- if ((instr->addr + instr->len) & (erase_regions[i].erasesize-1))
++ if ((instr->addr + instr->len) & (erase_regions[i].erasesize -
++ 1))
+ return -EINVAL;
+ }
+
+ /* make a local copy of instr to avoid modifying the caller's struct */
+- erase = kmalloc(sizeof(struct erase_info),GFP_KERNEL);
++ erase = kmalloc(sizeof (struct erase_info), GFP_KERNEL);
+
+ if (!erase)
+ return -ENOMEM;
+@@ -258,39 +463,40 @@
+ * find the subdevice where the to-be-erased area begins, adjust
+ * starting offset to be relative to the subdevice start
+ */
+- for(i = 0; i < concat->num_subdev; i++)
+- {
++ for (i = 0; i < concat->num_subdev; i++) {
+ subdev = concat->subdev[i];
+- if(subdev->size <= erase->addr)
++ if (subdev->size <= erase->addr)
+ erase->addr -= subdev->size;
+ else
+ break;
+ }
+- if(i >= concat->num_subdev) /* must never happen since size */
+- BUG(); /* limit has been verified above */
++
++ /* must never happen since size limit has been verified above */
++ if (i >= concat->num_subdev)
++ BUG();
+
+ /* now do the erase: */
+ err = 0;
+- for(;length > 0; i++) /* loop for all subevices affected by this request */
+- {
++ for (; length > 0; i++) {
++ /* loop for all subdevices affected by this request */
+ subdev = concat->subdev[i]; /* get current subdevice */
+
+ /* limit length to subdevice's size: */
+- if(erase->addr + length > subdev->size)
++ if (erase->addr + length > subdev->size)
+ erase->len = subdev->size - erase->addr;
+ else
+ erase->len = length;
+
+- if (!(subdev->flags & MTD_WRITEABLE))
+- {
++ if (!(subdev->flags & MTD_WRITEABLE)) {
+ err = -EROFS;
+ break;
+ }
+ length -= erase->len;
+- if ((err = concat_dev_erase(subdev, erase)))
+- {
+- if(err == -EINVAL) /* sanity check: must never happen since */
+- BUG(); /* block alignment has been checked above */
++ if ((err = concat_dev_erase(subdev, erase))) {
++ /* sanity check: should never happen since
++ * block alignment has been checked above */
++ if (err == -EINVAL)
++ BUG();
+ break;
+ }
+ /*
+@@ -313,7 +519,7 @@
+ return 0;
+ }
+
+-static int concat_lock (struct mtd_info *mtd, loff_t ofs, size_t len)
++static int concat_lock(struct mtd_info *mtd, loff_t ofs, size_t len)
+ {
+ struct mtd_concat *concat = CONCAT(mtd);
+ int i, err = -EINVAL;
+@@ -321,18 +527,15 @@
+ if ((len + ofs) > mtd->size)
+ return -EINVAL;
+
+- for(i = 0; i < concat->num_subdev; i++)
+- {
++ for (i = 0; i < concat->num_subdev; i++) {
+ struct mtd_info *subdev = concat->subdev[i];
+ size_t size;
+
+- if (ofs >= subdev->size)
+- {
++ if (ofs >= subdev->size) {
+ size = 0;
+ ofs -= subdev->size;
++ continue;
+ }
+- else
+- {
+ if (ofs + len > subdev->size)
+ size = subdev->size - ofs;
+ else
+@@ -340,21 +543,21 @@
+
+ err = subdev->lock(subdev, ofs, size);
+
+- if(err)
++ if (err)
+ break;
+
+ len -= size;
+- if(len == 0)
++ if (len == 0)
+ break;
+
+ err = -EINVAL;
+ ofs = 0;
+ }
+- }
++
+ return err;
+ }
+
+-static int concat_unlock (struct mtd_info *mtd, loff_t ofs, size_t len)
++static int concat_unlock(struct mtd_info *mtd, loff_t ofs, size_t len)
+ {
+ struct mtd_concat *concat = CONCAT(mtd);
+ int i, err = 0;
+@@ -362,18 +565,15 @@
+ if ((len + ofs) > mtd->size)
+ return -EINVAL;
+
+- for(i = 0; i < concat->num_subdev; i++)
+- {
++ for (i = 0; i < concat->num_subdev; i++) {
+ struct mtd_info *subdev = concat->subdev[i];
+ size_t size;
+
+- if (ofs >= subdev->size)
+- {
++ if (ofs >= subdev->size) {
+ size = 0;
+ ofs -= subdev->size;
++ continue;
+ }
+- else
+- {
+ if (ofs + len > subdev->size)
+ size = subdev->size - ofs;
+ else
+@@ -381,17 +581,17 @@
+
+ err = subdev->unlock(subdev, ofs, size);
+
+- if(err)
++ if (err)
+ break;
+
+ len -= size;
+- if(len == 0)
++ if (len == 0)
+ break;
+
+ err = -EINVAL;
+ ofs = 0;
+ }
+- }
++
+ return err;
+ }
+
+@@ -400,8 +600,7 @@
+ struct mtd_concat *concat = CONCAT(mtd);
+ int i;
+
+- for(i = 0; i < concat->num_subdev; i++)
+- {
++ for (i = 0; i < concat->num_subdev; i++) {
+ struct mtd_info *subdev = concat->subdev[i];
+ subdev->sync(subdev);
+ }
+@@ -412,10 +611,9 @@
+ struct mtd_concat *concat = CONCAT(mtd);
+ int i, rc = 0;
+
+- for(i = 0; i < concat->num_subdev; i++)
+- {
++ for (i = 0; i < concat->num_subdev; i++) {
+ struct mtd_info *subdev = concat->subdev[i];
+- if((rc = subdev->suspend(subdev)) < 0)
++ if ((rc = subdev->suspend(subdev)) < 0)
+ return rc;
+ }
+ return rc;
+@@ -426,8 +624,7 @@
+ struct mtd_concat *concat = CONCAT(mtd);
+ int i;
+
+- for(i = 0; i < concat->num_subdev; i++)
+- {
++ for (i = 0; i < concat->num_subdev; i++) {
+ struct mtd_info *subdev = concat->subdev[i];
+ subdev->resume(subdev);
+ }
+@@ -439,11 +636,10 @@
+ * stored to *new_dev upon success. This function does _not_
+ * register any devices: this is the caller's responsibility.
+ */
+-struct mtd_info *mtd_concat_create(
+- struct mtd_info *subdev[], /* subdevices to concatenate */
++struct mtd_info *mtd_concat_create(struct mtd_info *subdev[], /* subdevices to concatenate */
+ int num_devs, /* number of subdevices */
+- char *name) /* name for the new device */
+-{
++ char *name)
++{ /* name for the new device */
+ int i;
+ size_t size;
+ struct mtd_concat *concat;
+@@ -451,21 +647,21 @@
+ int num_erase_region;
+
+ printk(KERN_NOTICE "Concatenating MTD devices:\n");
+- for(i = 0; i < num_devs; i++)
++ for (i = 0; i < num_devs; i++)
+ printk(KERN_NOTICE "(%d): \"%s\"\n", i, subdev[i]->name);
+ printk(KERN_NOTICE "into device \"%s\"\n", name);
+
+ /* allocate the device structure */
+ size = SIZEOF_STRUCT_MTD_CONCAT(num_devs);
+- concat = kmalloc (size, GFP_KERNEL);
+- if(!concat)
+- {
+- printk ("memory allocation error while creating concatenated device \"%s\"\n",
++ concat = kmalloc(size, GFP_KERNEL);
++ if (!concat) {
++ printk
++ ("memory allocation error while creating concatenated device \"%s\"\n",
+ name);
+ return NULL;
+ }
+ memset(concat, 0, size);
+- concat->subdev = (struct mtd_info **)(concat + 1);
++ concat->subdev = (struct mtd_info **) (concat + 1);
+
+ /*
+ * Set up the new "super" device's MTD object structure, check for
+@@ -479,39 +675,53 @@
+ concat->mtd.oobsize = subdev[0]->oobsize;
+ concat->mtd.ecctype = subdev[0]->ecctype;
+ concat->mtd.eccsize = subdev[0]->eccsize;
++ if (subdev[0]->read_ecc)
++ concat->mtd.read_ecc = concat_read_ecc;
++ if (subdev[0]->write_ecc)
++ concat->mtd.write_ecc = concat_write_ecc;
++ if (subdev[0]->read_oob)
++ concat->mtd.read_oob = concat_read_oob;
++ if (subdev[0]->write_oob)
++ concat->mtd.write_oob = concat_write_oob;
+
+ concat->subdev[0] = subdev[0];
+
+- for(i = 1; i < num_devs; i++)
+- {
+- if(concat->mtd.type != subdev[i]->type)
+- {
++ for (i = 1; i < num_devs; i++) {
++ if (concat->mtd.type != subdev[i]->type) {
+ kfree(concat);
+- printk ("Incompatible device type on \"%s\"\n", subdev[i]->name);
++ printk("Incompatible device type on \"%s\"\n",
++ subdev[i]->name);
+ return NULL;
+ }
+- if(concat->mtd.flags != subdev[i]->flags)
+- { /*
+- * Expect all flags except MTD_WRITEABLE to be equal on
+- * all subdevices.
++ if (concat->mtd.flags != subdev[i]->flags) {
++ /*
++ * Expect all flags except MTD_WRITEABLE to be
++ * equal on all subdevices.
+ */
+- if((concat->mtd.flags ^ subdev[i]->flags) & ~MTD_WRITEABLE)
+- {
++ if ((concat->mtd.flags ^ subdev[i]->
++ flags) & ~MTD_WRITEABLE) {
+ kfree(concat);
+- printk ("Incompatible device flags on \"%s\"\n", subdev[i]->name);
++ printk("Incompatible device flags on \"%s\"\n",
++ subdev[i]->name);
+ return NULL;
+- }
+- else /* if writeable attribute differs, make super device writeable */
+- concat->mtd.flags |= subdev[i]->flags & MTD_WRITEABLE;
++ } else
++ /* if writeable attribute differs,
++ make super device writeable */
++ concat->mtd.flags |=
++ subdev[i]->flags & MTD_WRITEABLE;
+ }
+ concat->mtd.size += subdev[i]->size;
+- if(concat->mtd.oobblock != subdev[i]->oobblock ||
++ if (concat->mtd.oobblock != subdev[i]->oobblock ||
+ concat->mtd.oobsize != subdev[i]->oobsize ||
+ concat->mtd.ecctype != subdev[i]->ecctype ||
+- concat->mtd.eccsize != subdev[i]->eccsize)
+- {
++ concat->mtd.eccsize != subdev[i]->eccsize ||
++ !concat->mtd.read_ecc != !subdev[i]->read_ecc ||
++ !concat->mtd.write_ecc != !subdev[i]->write_ecc ||
++ !concat->mtd.read_oob != !subdev[i]->read_oob ||
++ !concat->mtd.write_oob != !subdev[i]->write_oob) {
+ kfree(concat);
+- printk ("Incompatible OOB or ECC data on \"%s\"\n", subdev[i]->name);
++ printk("Incompatible OOB or ECC data on \"%s\"\n",
++ subdev[i]->name);
+ return NULL;
+ }
+ concat->subdev[i] = subdev[i];
+@@ -535,7 +745,6 @@
+ concat->mtd.suspend = concat_suspend;
+ concat->mtd.resume = concat_resume;
+
+-
+ /*
+ * Combine the erase block size info of the subdevices:
+ *
+@@ -544,44 +753,44 @@
+ */
+ max_erasesize = curr_erasesize = subdev[0]->erasesize;
+ num_erase_region = 1;
+- for(i = 0; i < num_devs; i++)
+- {
+- if(subdev[i]->numeraseregions == 0)
+- { /* current subdevice has uniform erase size */
+- if(subdev[i]->erasesize != curr_erasesize)
+- { /* if it differs from the last subdevice's erase size, count it */
++ for (i = 0; i < num_devs; i++) {
++ if (subdev[i]->numeraseregions == 0) {
++ /* current subdevice has uniform erase size */
++ if (subdev[i]->erasesize != curr_erasesize) {
++ /* if it differs from the last subdevice's erase size, count it */
+ ++num_erase_region;
+ curr_erasesize = subdev[i]->erasesize;
+- if(curr_erasesize > max_erasesize)
++ if (curr_erasesize > max_erasesize)
+ max_erasesize = curr_erasesize;
+ }
+- }
+- else
+- { /* current subdevice has variable erase size */
++ } else {
++ /* current subdevice has variable erase size */
+ int j;
+- for(j = 0; j < subdev[i]->numeraseregions; j++)
+- { /* walk the list of erase regions, count any changes */
+- if(subdev[i]->eraseregions[j].erasesize != curr_erasesize)
+- {
++ for (j = 0; j < subdev[i]->numeraseregions; j++) {
++
++ /* walk the list of erase regions, count any changes */
++ if (subdev[i]->eraseregions[j].erasesize !=
++ curr_erasesize) {
+ ++num_erase_region;
+- curr_erasesize = subdev[i]->eraseregions[j].erasesize;
+- if(curr_erasesize > max_erasesize)
++ curr_erasesize =
++ subdev[i]->eraseregions[j].
++ erasesize;
++ if (curr_erasesize > max_erasesize)
+ max_erasesize = curr_erasesize;
+ }
+ }
+ }
+ }
+
+- if(num_erase_region == 1)
+- { /*
++ if (num_erase_region == 1) {
++ /*
+ * All subdevices have the same uniform erase size.
+ * This is easy:
+ */
+ concat->mtd.erasesize = curr_erasesize;
+ concat->mtd.numeraseregions = 0;
+- }
+- else
+- { /*
++ } else {
++ /*
+ * erase block size varies across the subdevices: allocate
+ * space to store the data describing the variable erase regions
+ */
+@@ -590,12 +799,13 @@
+
+ concat->mtd.erasesize = max_erasesize;
+ concat->mtd.numeraseregions = num_erase_region;
+- concat->mtd.eraseregions = erase_region_p = kmalloc (
+- num_erase_region * sizeof(struct mtd_erase_region_info), GFP_KERNEL);
+- if(!erase_region_p)
+- {
++ concat->mtd.eraseregions = erase_region_p =
++ kmalloc(num_erase_region *
++ sizeof (struct mtd_erase_region_info), GFP_KERNEL);
++ if (!erase_region_p) {
+ kfree(concat);
+- printk ("memory allocation error while creating erase region list"
++ printk
++ ("memory allocation error while creating erase region list"
+ " for device \"%s\"\n", name);
+ return NULL;
+ }
+@@ -606,41 +816,48 @@
+ */
+ curr_erasesize = subdev[0]->erasesize;
+ begin = position = 0;
+- for(i = 0; i < num_devs; i++)
+- {
+- if(subdev[i]->numeraseregions == 0)
+- { /* current subdevice has uniform erase size */
+- if(subdev[i]->erasesize != curr_erasesize)
+- { /*
++ for (i = 0; i < num_devs; i++) {
++ if (subdev[i]->numeraseregions == 0) {
++ /* current subdevice has uniform erase size */
++ if (subdev[i]->erasesize != curr_erasesize) {
++ /*
+ * fill in an mtd_erase_region_info structure for the area
+ * we have walked so far:
+ */
+ erase_region_p->offset = begin;
+- erase_region_p->erasesize = curr_erasesize;
+- erase_region_p->numblocks = (position - begin) / curr_erasesize;
++ erase_region_p->erasesize =
++ curr_erasesize;
++ erase_region_p->numblocks =
++ (position - begin) / curr_erasesize;
+ begin = position;
+
+ curr_erasesize = subdev[i]->erasesize;
+ ++erase_region_p;
+ }
+ position += subdev[i]->size;
+- }
+- else
+- { /* current subdevice has variable erase size */
++ } else {
++ /* current subdevice has variable erase size */
+ int j;
+- for(j = 0; j < subdev[i]->numeraseregions; j++)
+- { /* walk the list of erase regions, count any changes */
+- if(subdev[i]->eraseregions[j].erasesize != curr_erasesize)
+- {
++ for (j = 0; j < subdev[i]->numeraseregions; j++) {
++ /* walk the list of erase regions, count any changes */
++ if (subdev[i]->eraseregions[j].
++ erasesize != curr_erasesize) {
+ erase_region_p->offset = begin;
+- erase_region_p->erasesize = curr_erasesize;
+- erase_region_p->numblocks = (position - begin) / curr_erasesize;
++ erase_region_p->erasesize =
++ curr_erasesize;
++ erase_region_p->numblocks =
++ (position -
++ begin) / curr_erasesize;
+ begin = position;
+
+- curr_erasesize = subdev[i]->eraseregions[j].erasesize;
++ curr_erasesize =
++ subdev[i]->eraseregions[j].
++ erasesize;
+ ++erase_region_p;
+ }
+- position += subdev[i]->eraseregions[j].numblocks * curr_erasesize;
++ position +=
++ subdev[i]->eraseregions[j].
++ numblocks * curr_erasesize;
+ }
+ }
+ }
+@@ -660,16 +877,14 @@
+ void mtd_concat_destroy(struct mtd_info *mtd)
+ {
+ struct mtd_concat *concat = CONCAT(mtd);
+- if(concat->mtd.numeraseregions)
++ if (concat->mtd.numeraseregions)
+ kfree(concat->mtd.eraseregions);
+ kfree(concat);
+ }
+
+-
+ EXPORT_SYMBOL(mtd_concat_create);
+ EXPORT_SYMBOL(mtd_concat_destroy);
+
+-
+ MODULE_LICENSE("GPL");
+ MODULE_AUTHOR("Robert Kaiser <rkaiser@sysgo.de>");
+ MODULE_DESCRIPTION("Generic support for concatenating of MTD devices");
+diff -Nurb linux-mips-2.4.27/drivers/mtd/mtdcore.c linux/drivers/mtd/mtdcore.c
+--- linux-mips-2.4.27/drivers/mtd/mtdcore.c 2003-02-26 01:53:49.000000000 +0100
++++ linux/drivers/mtd/mtdcore.c 2004-11-19 10:25:11.650237640 +0100
+@@ -1,5 +1,5 @@
+ /*
+- * $Id: mtdcore.c,v 1.34 2003/01/24 23:32:25 dwmw2 Exp $
++ * $Id: mtdcore.c,v 1.39 2003/05/21 15:15:03 dwmw2 Exp $
+ *
+ * Core registration and callback routines for MTD
+ * drivers and users.
+@@ -17,6 +17,7 @@
+ #include <linux/major.h>
+ #include <linux/fs.h>
+ #include <linux/ioctl.h>
++#include <linux/init.h>
+ #include <linux/mtd/compatmac.h>
+ #ifdef CONFIG_PROC_FS
+ #include <linux/proc_fs.h>
+@@ -24,9 +25,15 @@
+
+ #include <linux/mtd/mtd.h>
+
+-static DECLARE_MUTEX(mtd_table_mutex);
+-static struct mtd_info *mtd_table[MAX_MTD_DEVICES];
+-static struct mtd_notifier *mtd_notifiers = NULL;
++/* These are exported solely for the purpose of mtd_blkdevs.c. You
++ should not use them for _anything_ else */
++DECLARE_MUTEX(mtd_table_mutex);
++struct mtd_info *mtd_table[MAX_MTD_DEVICES];
++
++EXPORT_SYMBOL_GPL(mtd_table_mutex);
++EXPORT_SYMBOL_GPL(mtd_table);
++
++static LIST_HEAD(mtd_notifiers);
+
+ /**
+ * add_mtd_device - register an MTD device
+@@ -44,21 +51,28 @@
+
+ down(&mtd_table_mutex);
+
+- for (i=0; i< MAX_MTD_DEVICES; i++)
+- if (!mtd_table[i])
+- {
+- struct mtd_notifier *not=mtd_notifiers;
++ for (i=0; i < MAX_MTD_DEVICES; i++)
++ if (!mtd_table[i]) {
++ struct list_head *this;
+
+ mtd_table[i] = mtd;
+ mtd->index = i;
++ mtd->usecount = 0;
++
+ DEBUG(0, "mtd: Giving out device %d to %s\n",i, mtd->name);
+- while (not)
+- {
+- (*(not->add))(mtd);
+- not = not->next;
++ /* No need to get a refcount on the module containing
++ the notifier, since we hold the mtd_table_mutex */
++ list_for_each(this, &mtd_notifiers) {
++ struct mtd_notifier *not = list_entry(this, struct mtd_notifier, list);
++ not->add(mtd);
+ }
++
+ up(&mtd_table_mutex);
+- MOD_INC_USE_COUNT;
++ /* We _know_ we aren't being removed, because
++ our caller is still holding us here. So none
++ of this try_ nonsense, and no bitching about it
++ either. :) */
++ __module_get(THIS_MODULE);
+ return 0;
+ }
+
+@@ -78,29 +92,34 @@
+
+ int del_mtd_device (struct mtd_info *mtd)
+ {
+- struct mtd_notifier *not=mtd_notifiers;
+- int i;
++ int ret;
+
+ down(&mtd_table_mutex);
+
+- for (i=0; i < MAX_MTD_DEVICES; i++)
+- {
+- if (mtd_table[i] == mtd)
+- {
+- while (not)
+- {
+- (*(not->remove))(mtd);
+- not = not->next;
+- }
+- mtd_table[i] = NULL;
+- up (&mtd_table_mutex);
+- MOD_DEC_USE_COUNT;
+- return 0;
++ if (mtd_table[mtd->index] != mtd) {
++ ret = -ENODEV;
++ } else if (mtd->usecount) {
++ printk(KERN_NOTICE "Removing MTD device #%d (%s) with use count %d\n",
++ mtd->index, mtd->name, mtd->usecount);
++ ret = -EBUSY;
++ } else {
++ struct list_head *this;
++
++ /* No need to get a refcount on the module containing
++ the notifier, since we hold the mtd_table_mutex */
++ list_for_each(this, &mtd_notifiers) {
++ struct mtd_notifier *not = list_entry(this, struct mtd_notifier, list);
++ not->remove(mtd);
+ }
++
++ mtd_table[mtd->index] = NULL;
++
++ module_put(THIS_MODULE);
++ ret = 0;
+ }
+
+ up(&mtd_table_mutex);
+- return 1;
++ return ret;
+ }
+
+ /**
+@@ -118,10 +137,9 @@
+
+ down(&mtd_table_mutex);
+
+- new->next = mtd_notifiers;
+- mtd_notifiers = new;
++ list_add(&new->list, &mtd_notifiers);
+
+- MOD_INC_USE_COUNT;
++ __module_get(THIS_MODULE);
+
+ for (i=0; i< MAX_MTD_DEVICES; i++)
+ if (mtd_table[i])
+@@ -142,34 +160,24 @@
+
+ int unregister_mtd_user (struct mtd_notifier *old)
+ {
+- struct mtd_notifier **prev = &mtd_notifiers;
+- struct mtd_notifier *cur;
+ int i;
+
+ down(&mtd_table_mutex);
+
+- while ((cur = *prev)) {
+- if (cur == old) {
+- *prev = cur->next;
+-
+- MOD_DEC_USE_COUNT;
++ module_put(THIS_MODULE);
+
+ for (i=0; i< MAX_MTD_DEVICES; i++)
+ if (mtd_table[i])
+ old->remove(mtd_table[i]);
+
++ list_del(&old->list);
+ up(&mtd_table_mutex);
+ return 0;
+- }
+- prev = &cur->next;
+- }
+- up(&mtd_table_mutex);
+- return 1;
+ }
+
+
+ /**
+- * __get_mtd_device - obtain a validated handle for an MTD device
++ * get_mtd_device - obtain a validated handle for an MTD device
+ * @mtd: last known address of the required MTD device
+ * @num: internal device number of the required MTD device
+ *
+@@ -177,11 +185,10 @@
+ * table, if any. Given an address and num == -1, search the device table
+ * for a device with that address and return if it's still present. Given
+ * both, return the num'th driver only if its address matches. Return NULL
+- * if not. get_mtd_device() increases the use count, but
+- * __get_mtd_device() doesn't - you should generally use get_mtd_device().
++ * if not.
+ */
+
+-struct mtd_info *__get_mtd_device(struct mtd_info *mtd, int num)
++struct mtd_info *get_mtd_device(struct mtd_info *mtd, int num)
+ {
+ struct mtd_info *ret = NULL;
+ int i;
+@@ -198,10 +205,27 @@
+ ret = NULL;
+ }
+
++ if (ret && !try_module_get(ret->owner))
++ ret = NULL;
++
++ if (ret)
++ ret->usecount++;
++
+ up(&mtd_table_mutex);
+ return ret;
+ }
+
++void put_mtd_device(struct mtd_info *mtd)
++{
++ int c;
++
++ down(&mtd_table_mutex);
++ c = --mtd->usecount;
++ up(&mtd_table_mutex);
++ BUG_ON(c < 0);
++
++ module_put(mtd->owner);
++}
+
+ /* default_mtd_writev - default mtd writev method for MTD devices that
+ * dont implement their own
+@@ -265,7 +289,8 @@
+
+ EXPORT_SYMBOL(add_mtd_device);
+ EXPORT_SYMBOL(del_mtd_device);
+-EXPORT_SYMBOL(__get_mtd_device);
++EXPORT_SYMBOL(get_mtd_device);
++EXPORT_SYMBOL(put_mtd_device);
+ EXPORT_SYMBOL(register_mtd_user);
+ EXPORT_SYMBOL(unregister_mtd_user);
+ EXPORT_SYMBOL(default_mtd_writev);
+diff -Nurb linux-mips-2.4.27/drivers/mtd/mtdpart.c linux/drivers/mtd/mtdpart.c
+--- linux-mips-2.4.27/drivers/mtd/mtdpart.c 2003-02-26 01:53:49.000000000 +0100
++++ linux/drivers/mtd/mtdpart.c 2004-11-19 10:25:11.652237336 +0100
+@@ -5,7 +5,7 @@
+ *
+ * This code is GPL
+ *
+- * $Id: mtdpart.c,v 1.32 2002/10/21 13:40:05 jocke Exp $
++ * $Id: mtdpart.c,v 1.42 2003/07/09 11:19:01 dwmw2 Exp $
+ *
+ * 02-21-2002 Thomas Gleixner <gleixner@autronix.de>
+ * added support for read_oob, write_oob
+@@ -16,10 +16,11 @@
+ #include <linux/kernel.h>
+ #include <linux/slab.h>
+ #include <linux/list.h>
+-
++#include <linux/config.h>
++#include <linux/kmod.h>
+ #include <linux/mtd/mtd.h>
+ #include <linux/mtd/partitions.h>
+-
++#include <linux/mtd/compatmac.h>
+
+ /* Our partition linked list */
+ static LIST_HEAD(mtd_partitions);
+@@ -54,8 +55,12 @@
+ len = 0;
+ else if (from + len > mtd->size)
+ len = mtd->size - from;
++ if (part->master->read_ecc == NULL)
+ return part->master->read (part->master, from + part->offset,
+ len, retlen, buf);
++ else
++ return part->master->read_ecc (part->master, from + part->offset,
++ len, retlen, buf, NULL, &mtd->oobinfo);
+ }
+
+ static int part_point (struct mtd_info *mtd, loff_t from, size_t len,
+@@ -78,9 +83,11 @@
+
+
+ static int part_read_ecc (struct mtd_info *mtd, loff_t from, size_t len,
+- size_t *retlen, u_char *buf, u_char *eccbuf, int oobsel)
++ size_t *retlen, u_char *buf, u_char *eccbuf, struct nand_oobinfo *oobsel)
+ {
+ struct mtd_part *part = PART(mtd);
++ if (oobsel == NULL)
++ oobsel = &mtd->oobinfo;
+ if (from >= mtd->size)
+ len = 0;
+ else if (from + len > mtd->size)
+@@ -113,7 +120,7 @@
+ size_t *retlen, u_char *buf)
+ {
+ struct mtd_part *part = PART(mtd);
+- return part->master->read_user_prot_reg (part->master, from,
++ return part->master->read_fact_prot_reg (part->master, from,
+ len, retlen, buf);
+ }
+
+@@ -127,17 +134,24 @@
+ len = 0;
+ else if (to + len > mtd->size)
+ len = mtd->size - to;
++ if (part->master->write_ecc == NULL)
+ return part->master->write (part->master, to + part->offset,
+ len, retlen, buf);
++ else
++ return part->master->write_ecc (part->master, to + part->offset,
++ len, retlen, buf, NULL, &mtd->oobinfo);
++
+ }
+
+ static int part_write_ecc (struct mtd_info *mtd, loff_t to, size_t len,
+ size_t *retlen, const u_char *buf,
+- u_char *eccbuf, int oobsel)
++ u_char *eccbuf, struct nand_oobinfo *oobsel)
+ {
+ struct mtd_part *part = PART(mtd);
+ if (!(mtd->flags & MTD_WRITEABLE))
+ return -EROFS;
++ if (oobsel == NULL)
++ oobsel = &mtd->oobinfo;
+ if (to >= mtd->size)
+ len = 0;
+ else if (to + len > mtd->size)
+@@ -174,25 +188,37 @@
+ struct mtd_part *part = PART(mtd);
+ if (!(mtd->flags & MTD_WRITEABLE))
+ return -EROFS;
++ if (part->master->writev_ecc == NULL)
+ return part->master->writev (part->master, vecs, count,
+ to + part->offset, retlen);
++ else
++ return part->master->writev_ecc (part->master, vecs, count,
++ to + part->offset, retlen,
++ NULL, &mtd->oobinfo);
+ }
+
+ static int part_readv (struct mtd_info *mtd, struct iovec *vecs,
+ unsigned long count, loff_t from, size_t *retlen)
+ {
+ struct mtd_part *part = PART(mtd);
++ if (part->master->readv_ecc == NULL)
+ return part->master->readv (part->master, vecs, count,
+ from + part->offset, retlen);
++ else
++ return part->master->readv_ecc (part->master, vecs, count,
++ from + part->offset, retlen,
++ NULL, &mtd->oobinfo);
+ }
+
+ static int part_writev_ecc (struct mtd_info *mtd, const struct iovec *vecs,
+ unsigned long count, loff_t to, size_t *retlen,
+- u_char *eccbuf, int oobsel)
++ u_char *eccbuf, struct nand_oobinfo *oobsel)
+ {
+ struct mtd_part *part = PART(mtd);
+ if (!(mtd->flags & MTD_WRITEABLE))
+ return -EROFS;
++ if (oobsel == NULL)
++ oobsel = &mtd->oobinfo;
+ return part->master->writev_ecc (part->master, vecs, count,
+ to + part->offset, retlen,
+ eccbuf, oobsel);
+@@ -200,9 +226,11 @@
+
+ static int part_readv_ecc (struct mtd_info *mtd, struct iovec *vecs,
+ unsigned long count, loff_t from, size_t *retlen,
+- u_char *eccbuf, int oobsel)
++ u_char *eccbuf, struct nand_oobinfo *oobsel)
+ {
+ struct mtd_part *part = PART(mtd);
++ if (oobsel == NULL)
++ oobsel = &mtd->oobinfo;
+ return part->master->readv_ecc (part->master, vecs, count,
+ from + part->offset, retlen,
+ eccbuf, oobsel);
+@@ -288,7 +316,7 @@
+ */
+
+ int add_mtd_partitions(struct mtd_info *master,
+- struct mtd_partition *parts,
++ const struct mtd_partition *parts,
+ int nbparts)
+ {
+ struct mtd_part *slave;
+@@ -321,7 +349,7 @@
+
+ slave->mtd.name = parts[i].name;
+ slave->mtd.bank_size = master->bank_size;
+- slave->mtd.module = master->module;
++ slave->mtd.owner = master->owner;
+
+ slave->mtd.read = part_read;
+ slave->mtd.write = part_write;
+@@ -452,6 +480,75 @@
+ EXPORT_SYMBOL(add_mtd_partitions);
+ EXPORT_SYMBOL(del_mtd_partitions);
+
++static spinlock_t part_parser_lock = SPIN_LOCK_UNLOCKED;
++static LIST_HEAD(part_parsers);
++
++struct mtd_part_parser *get_partition_parser(const char *name)
++{
++ struct list_head *this;
++ void *ret = NULL;
++ spin_lock(&part_parser_lock);
++
++ list_for_each(this, &part_parsers) {
++ struct mtd_part_parser *p = list_entry(this, struct mtd_part_parser, list);
++
++ if (!strcmp(p->name, name) && try_module_get(p->owner)) {
++ ret = p;
++ break;
++ }
++ }
++ spin_unlock(&part_parser_lock);
++
++ return ret;
++}
++
++int register_mtd_parser(struct mtd_part_parser *p)
++{
++ spin_lock(&part_parser_lock);
++ list_add(&p->list, &part_parsers);
++ spin_unlock(&part_parser_lock);
++
++ return 0;
++}
++
++int deregister_mtd_parser(struct mtd_part_parser *p)
++{
++ spin_lock(&part_parser_lock);
++ list_del(&p->list);
++ spin_unlock(&part_parser_lock);
++ return 0;
++}
++
++int parse_mtd_partitions(struct mtd_info *master, const char **types,
++ struct mtd_partition **pparts, unsigned long origin)
++{
++ struct mtd_part_parser *parser;
++ int ret = 0;
++
++ for ( ; ret <= 0 && *types; types++) {
++ parser = get_partition_parser(*types);
++#ifdef CONFIG_KMOD
++ if (!parser && !request_module("%s", *types))
++ parser = get_partition_parser(*types);
++#endif
++ if (!parser) {
++ printk(KERN_NOTICE "%s partition parsing not available\n",
++ *types);
++ continue;
++ }
++ ret = (*parser->parse_fn)(master, pparts, origin);
++ if (ret > 0) {
++ printk(KERN_NOTICE "%d %s partitions found on MTD device %s\n",
++ ret, parser->name, master->name);
++ }
++ put_partition_parser(parser);
++ }
++ return ret;
++}
++
++EXPORT_SYMBOL_GPL(parse_mtd_partitions);
++EXPORT_SYMBOL_GPL(register_mtd_parser);
++EXPORT_SYMBOL_GPL(deregister_mtd_parser);
+
+ MODULE_LICENSE("GPL");
+ MODULE_AUTHOR("Nicolas Pitre <nico@cam.org>");
+diff -Nurb linux-mips-2.4.27/drivers/mtd/nand/Config.in linux/drivers/mtd/nand/Config.in
+--- linux-mips-2.4.27/drivers/mtd/nand/Config.in 2003-02-26 01:53:50.000000000 +0100
++++ linux/drivers/mtd/nand/Config.in 2004-11-19 10:25:11.987186416 +0100
+@@ -1,6 +1,6 @@
+ # drivers/mtd/nand/Config.in
+
+-# $Id: Config.in,v 1.11 2002/12/01 13:23:05 gleixner Exp $
++# $Id: Config.in,v 1.14 2003/11/04 22:59:11 ahennessy Exp $
+
+ mainmenu_option next_comment
+
+@@ -11,26 +11,27 @@
+ bool ' Verify NAND page writes' CONFIG_MTD_NAND_VERIFY_WRITE
+ fi
+
+-if [ "$CONFIG_ARM" = "y" -a "$CONFIG_ARCH_P720T" = "y" ]; then
+- dep_tristate ' NAND Flash device on SPIA board' CONFIG_MTD_NAND_SPIA $CONFIG_MTD_NAND
++if [ "$CONFIG_ARM" = "y" ]; then
++ dep_tristate ' NAND Flash device on SPIA board' CONFIG_MTD_NAND_SPIA $CONFIG_MTD_NAND $CONFIG_ARCH_P720T
++ dep_tristate ' NAND Flash device on TOTO board' CONFIG_MTD_NAND_TOTO $CONFIG_MTD_NAND $CONFIG_ARCH_OMAP
++ dep_tristate ' SmartMedia Card on AUTCPU12 board' CONFIG_MTD_NAND_AUTCPU12 $CONFIG_MTD_NAND $CONFIG_ARCH_AUTCPU12
++ dep_tristate ' NAND Flash device on EDP7312 board' CONFIG_MTD_NAND_EDB7312 $CONFIG_MTD_NAND $CONFIG_ARCH_EDB7312
+ fi
+
+-if [ "$CONFIG_ARCH_AUTCPU12" = "y" ]; then
+- dep_tristate ' SmartMedia Card on AUTCPU12 board' CONFIG_MTD_NAND_AUTCPU12 $CONFIG_MTD_NAND
+-fi
+-
+-if [ "$CONFIG_ARCH_EDB7312" = "y" ]; then
+- dep_tristate ' NAND Flash device on EDP7312 board' CONFIG_MTD_NAND_EDB7312 $CONFIG_MTD_NAND
+-fi
+-
+-if [ "$CONFIG_MTD_DOC2001" = "y" -o "$CONFIG_MTD_DOC2000" = "y" -o "$CONFIG_MTD_NAND" = "y" ]; then
++if [ "$CONFIG_MTD_DOC2001PLUS" = "y" -o "$CONFIG_MTD_DOC2001" = "y" -o "$CONFIG_MTD_DOC2000" = "y" -o "$CONFIG_MTD_NAND" = "y" ]; then
+ define_bool CONFIG_MTD_NAND_IDS y
++else
++ if [ "$CONFIG_MTD_DOC2001PLUS" = "m" -o "$CONFIG_MTD_DOC2001" = "m" -o "$CONFIG_MTD_DOC2000" = "m" -o "$CONFIG_MTD_NAND" = "m" ]; then
++ define_bool CONFIG_MTD_NAND_IDS m
++ fi
+ fi
+
+-if [ "$CONFIG_MTD_NAND_IDS" != "y" ]; then
+-if [ "$CONFIG_MTD_DOC2001" = "m" -o "$CONFIG_MTD_DOC2000" = "m" -o "$CONFIG_MTD_NAND" = "m" ]; then
+- define_bool CONFIG_MTD_NAND_IDS m
++if [ "$CONFIG_TOSHIBA_RBTX4925" = "y" ]; then
++ dep_tristate ' SmartMedia Card on Toshiba RBTX4925 reference board' CONFIG_MTD_NAND_TX4925NDFMC $CONFIG_MTD_NAND $CONFIG_TOSHIBA_RBTX4925_MPLEX_NAND
+ fi
++
++if [ "$CONFIG_TOSHIBA_RBTX4938" = "y" ]; then
++ dep_tristate ' NAND Flash device on Toshiba RBTX4938 reference board' CONFIG_MTD_NAND_TX4938NDFMC $CONFIG_MTD_NAND $CONFIG_TOSHIBA_RBTX4938_MPLEX_NAND
+ fi
+
+ endmenu
+diff -Nurb linux-mips-2.4.27/drivers/mtd/nand/Makefile linux/drivers/mtd/nand/Makefile
+--- linux-mips-2.4.27/drivers/mtd/nand/Makefile 2003-02-26 01:53:50.000000000 +0100
++++ linux/drivers/mtd/nand/Makefile 2004-11-19 10:25:11.989186112 +0100
+@@ -1,16 +1,20 @@
+ #
+ # linux/drivers/nand/Makefile
+ #
+-# $Id: Makefile,v 1.10 2002/12/01 13:23:05 gleixner Exp $
++# $Id: Makefile.common,v 1.4 2003/11/04 22:59:11 ahennessy Exp $
+
++ifeq ($(PATCHLEVEL),4)
+ O_TARGET := nandlink.o
+-
+ export-objs := nand.o nand_ecc.o nand_ids.o
++endif
+
+ obj-$(CONFIG_MTD_NAND) += nand.o nand_ecc.o
+ obj-$(CONFIG_MTD_NAND_SPIA) += spia.o
++obj-$(CONFIG_MTD_NAND_TOTO) += toto.o
+ obj-$(CONFIG_MTD_NAND_AUTCPU12) += autcpu12.o
+ obj-$(CONFIG_MTD_NAND_EDB7312) += edb7312.o
++obj-$(CONFIG_MTD_NAND_TX4925NDFMC) += tx4925ndfmc.o
++obj-$(CONFIG_MTD_NAND_TX4938NDFMC) += tx4938ndfmc.o
+ obj-$(CONFIG_MTD_NAND_IDS) += nand_ids.o
+
+-include $(TOPDIR)/Rules.make
++-include $(TOPDIR)/Rules.make
+diff -Nurb linux-mips-2.4.27/drivers/mtd/nand/autcpu12.c linux/drivers/mtd/nand/autcpu12.c
+--- linux-mips-2.4.27/drivers/mtd/nand/autcpu12.c 2003-02-26 01:53:50.000000000 +0100
++++ linux/drivers/mtd/nand/autcpu12.c 2004-11-19 10:25:11.990185960 +0100
+@@ -4,9 +4,9 @@
+ * Copyright (c) 2002 Thomas Gleixner <tgxl@linutronix.de>
+ *
+ * Derived from drivers/mtd/spia.c
+- * Copyright (C) 2000 Steven J. Hill (sjhill@cotw.com)
++ * Copyright (C) 2000 Steven J. Hill (sjhill@realitydiluted.com)
+ *
+- * $Id: autcpu12.c,v 1.6 2002/11/11 15:47:56 gleixner Exp $
++ * $Id: autcpu12.c,v 1.13 2003/07/11 15:12:29 dwmw2 Exp $
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+@@ -25,10 +25,10 @@
+ * added page_cache
+ *
+ * 10-06-2002 TG 128K card support added
+- *
+ */
+
+ #include <linux/slab.h>
++#include <linux/init.h>
+ #include <linux/module.h>
+ #include <linux/mtd/mtd.h>
+ #include <linux/mtd/nand.h>
+@@ -70,6 +70,7 @@
+ /*
+ * Define partitions for flash devices
+ */
++extern struct nand_oobinfo jffs2_oobinfo;
+
+ static struct mtd_partition partition_info16k[] = {
+ { name: "AUTCPU12 flash partition 1",
+@@ -95,7 +96,7 @@
+ size: 16 * SZ_1M },
+ { name: "AUTCPU12 flash partition 2",
+ offset: 16 * SZ_1M,
+- size: 48 * SZ_1M},
++ size: 48 * SZ_1M },
+ };
+
+ static struct mtd_partition partition_info128k[] = {
+@@ -104,7 +105,7 @@
+ size: 16 * SZ_1M },
+ { name: "AUTCPU12 flash partition 2",
+ offset: 16 * SZ_1M,
+- size: 112 * SZ_1M},
++ size: 112 * SZ_1M },
+ };
+
+ #define NUM_PARTITIONS16K 2
+@@ -114,7 +115,7 @@
+ /*
+ * hardware specific access to control-lines
+ */
+-void autcpu12_hwcontrol(int cmd)
++static void autcpu12_hwcontrol(struct mtd_info *mtd, int cmd)
+ {
+
+ switch(cmd){
+@@ -133,7 +134,7 @@
+ /*
+ * read device ready pin
+ */
+-int autcpu12_device_ready(void)
++int autcpu12_device_ready(struct mtd_info *mtd)
+ {
+
+ return ( (*(volatile unsigned char *) (autcpu12_io_base + autcpu12_pedr)) & AUTCPU12_SMC_RDY) ? 1 : 0;
+@@ -184,7 +185,7 @@
+ this->eccmode = NAND_ECC_SOFT;
+
+ /* Scan to find existance of the device */
+- if (nand_scan (autcpu12_mtd)) {
++ if (nand_scan (autcpu12_mtd, 1)) {
+ err = -ENXIO;
+ goto out_ior;
+ }
+@@ -197,15 +198,6 @@
+ goto out_ior;
+ }
+
+- /* Allocate memory for internal data buffer */
+- this->data_cache = kmalloc (sizeof(u_char) * (autcpu12_mtd->oobblock + autcpu12_mtd->oobsize), GFP_KERNEL);
+- if (!this->data_cache) {
+- printk ("Unable to allocate NAND data cache for AUTCPU12.\n");
+- err = -ENOMEM;
+- goto out_buf;
+- }
+- this->cache_page = -1;
+-
+ /* Register the partitions */
+ switch(autcpu12_mtd->size){
+ case SZ_16M: add_mtd_partitions(autcpu12_mtd, partition_info16k, NUM_PARTITIONS16K); break;
+@@ -215,13 +207,11 @@
+ default: {
+ printk ("Unsupported SmartMedia device\n");
+ err = -ENXIO;
+- goto out_cac;
++ goto out_buf;
+ }
+ }
+ goto out;
+
+-out_cac:
+- kfree (this->data_cache);
+ out_buf:
+ kfree (this->data_buf);
+ out_ior:
+@@ -250,7 +240,6 @@
+
+ /* Free internal data buffers */
+ kfree (this->data_buf);
+- kfree (this->data_cache);
+
+ /* unmap physical adress */
+ iounmap((void *)autcpu12_fio_base);
+diff -Nurb linux-mips-2.4.27/drivers/mtd/nand/diskonchip.c linux/drivers/mtd/nand/diskonchip.c
+--- linux-mips-2.4.27/drivers/mtd/nand/diskonchip.c 1970-01-01 01:00:00.000000000 +0100
++++ linux/drivers/mtd/nand/diskonchip.c 2004-11-19 10:25:11.992185656 +0100
+@@ -0,0 +1,534 @@
++/*
++ * drivers/mtd/nand/diskonchip.c
++ *
++ * (C) 2003 Red Hat, Inc.
++ *
++ * Author: David Woodhouse <dwmw2@infradead.org>
++ *
++ * Interface to generic NAND code for M-Systems DiskOnChip devices
++ *
++ * $Id: diskonchip.c,v 1.8 2003/11/05 16:52:34 dwmw2 Exp $
++ */
++
++#include <linux/kernel.h>
++#include <linux/init.h>
++#include <linux/sched.h>
++#include <linux/delay.h>
++#include <asm/io.h>
++
++#include <linux/mtd/mtd.h>
++#include <linux/mtd/nand.h>
++#include <linux/mtd/doc2000.h>
++#include <linux/mtd/compatmac.h>
++
++struct doc_priv {
++ unsigned long virtadr;
++ unsigned long physadr;
++ u_char ChipID;
++ u_char CDSNControl;
++ int chips_per_floor; /* The number of chips detected on each floor */
++ int curfloor;
++ int curchip;
++};
++
++#define DoC_is_Millennium(doc) ((doc)->ChipID == DOC_ChipID_DocMil)
++#define DoC_is_2000(doc) ((doc)->ChipID == DOC_ChipID_Doc2k)
++
++static void doc200x_hwcontrol(struct mtd_info *mtd, int cmd);
++static void doc200x_select_chip(struct mtd_info *mtd, int chip);
++
++static int debug=0;
++MODULE_PARM(debug, "i");
++
++static int try_dword=1;
++MODULE_PARM(try_dword, "i");
++
++static void DoC_Delay(struct doc_priv *doc, unsigned short cycles)
++{
++ volatile char dummy;
++ int i;
++
++ for (i = 0; i < cycles; i++) {
++ if (DoC_is_Millennium(doc))
++ dummy = ReadDOC(doc->virtadr, NOP);
++ else
++ dummy = ReadDOC(doc->virtadr, DOCStatus);
++ }
++
++}
++/* DOC_WaitReady: Wait for RDY line to be asserted by the flash chip */
++static int _DoC_WaitReady(struct doc_priv *doc)
++{
++ unsigned long docptr = doc->virtadr;
++ unsigned long timeo = jiffies + (HZ * 10);
++
++ if(debug) printk("_DoC_WaitReady...\n");
++ /* Out-of-line routine to wait for chip response */
++ while (!(ReadDOC(docptr, CDSNControl) & CDSN_CTRL_FR_B)) {
++ if (time_after(jiffies, timeo)) {
++ printk("_DoC_WaitReady timed out.\n");
++ return -EIO;
++ }
++ udelay(1);
++ cond_resched();
++ }
++
++ return 0;
++}
++
++static inline int DoC_WaitReady(struct doc_priv *doc)
++{
++ unsigned long docptr = doc->virtadr;
++ int ret = 0;
++
++ DoC_Delay(doc, 4);
++
++ if (!(ReadDOC(docptr, CDSNControl) & CDSN_CTRL_FR_B))
++ /* Call the out-of-line routine to wait */
++ ret = _DoC_WaitReady(doc);
++
++ DoC_Delay(doc, 2);
++ if(debug) printk("DoC_WaitReady OK\n");
++ return ret;
++}
++
++static void doc2000_write_byte(struct mtd_info *mtd, u_char datum)
++{
++ struct nand_chip *this = mtd->priv;
++ struct doc_priv *doc = (void *)this->priv;
++ unsigned long docptr = doc->virtadr;
++
++ if(debug)printk("write_byte %02x\n", datum);
++ WriteDOC(datum, docptr, CDSNSlowIO);
++ WriteDOC(datum, docptr, 2k_CDSN_IO);
++}
++
++static u_char doc2000_read_byte(struct mtd_info *mtd)
++{
++ struct nand_chip *this = mtd->priv;
++ struct doc_priv *doc = (void *)this->priv;
++ unsigned long docptr = doc->virtadr;
++
++ ReadDOC(docptr, CDSNSlowIO);
++ u_char ret = ReadDOC(docptr, 2k_CDSN_IO);
++ if (debug) printk("read_byte returns %02x\n", ret);
++ return ret;
++}
++static void doc2000_writebuf(struct mtd_info *mtd,
++ const u_char *buf, int len)
++{
++ struct nand_chip *this = mtd->priv;
++ struct doc_priv *doc = (void *)this->priv;
++ unsigned long docptr = doc->virtadr;
++ int i;
++ if (debug)printk("writebuf of %d bytes: ", len);
++ for (i=0; i < len; i++) {
++ WriteDOC_(buf[i], docptr, DoC_2k_CDSN_IO + i);
++ if (debug && i < 16)
++ printk("%02x ", buf[i]);
++ }
++ if (debug) printk("\n");
++}
++
++static void doc2000_readbuf(struct mtd_info *mtd,
++ u_char *buf, int len)
++{
++ struct nand_chip *this = mtd->priv;
++ struct doc_priv *doc = (void *)this->priv;
++ unsigned long docptr = doc->virtadr;
++ int i;
++
++ if (debug)printk("readbuf of %d bytes: ", len);
++
++ for (i=0; i < len; i++) {
++ buf[i] = ReadDOC(docptr, 2k_CDSN_IO + i);
++ }
++}
++
++static void doc2000_readbuf_dword(struct mtd_info *mtd,
++ u_char *buf, int len)
++{
++ struct nand_chip *this = mtd->priv;
++ struct doc_priv *doc = (void *)this->priv;
++ unsigned long docptr = doc->virtadr;
++ int i;
++
++ if (debug) printk("readbuf_dword of %d bytes: ", len);
++
++ if (unlikely((((unsigned long)buf)|len) & 3)) {
++ for (i=0; i < len; i++) {
++ *(uint8_t *)(&buf[i]) = ReadDOC(docptr, 2k_CDSN_IO + i);
++ }
++ } else {
++ for (i=0; i < len; i+=4) {
++ *(uint32_t*)(&buf[i]) = readl(docptr + DoC_2k_CDSN_IO + i);
++ }
++ }
++}
++
++static int doc2000_verifybuf(struct mtd_info *mtd,
++ const u_char *buf, int len)
++{
++ struct nand_chip *this = mtd->priv;
++ struct doc_priv *doc = (void *)this->priv;
++ unsigned long docptr = doc->virtadr;
++ int i;
++
++ for (i=0; i < len; i++)
++ if (buf[i] != ReadDOC(docptr, 2k_CDSN_IO))
++ return i;
++ return 0;
++}
++
++static uint16_t doc200x_ident_chip(struct mtd_info *mtd, int nr)
++{
++ struct nand_chip *this = mtd->priv;
++ struct doc_priv *doc = (void *)this->priv;
++ uint16_t ret;
++
++ doc200x_select_chip(mtd, nr);
++ doc200x_hwcontrol(mtd, NAND_CTL_SETCLE);
++ this->write_byte(mtd, NAND_CMD_READID);
++ doc200x_hwcontrol(mtd, NAND_CTL_CLRCLE);
++ doc200x_hwcontrol(mtd, NAND_CTL_SETALE);
++ this->write_byte(mtd, 0);
++ doc200x_hwcontrol(mtd, NAND_CTL_CLRALE);
++
++ ret = this->read_byte(mtd) << 8;
++ ret |= this->read_byte(mtd);
++
++ if (doc->ChipID == DOC_ChipID_Doc2k && try_dword && !nr) {
++ /* First chip probe. See if we get same results by 32-bit access */
++ union {
++ uint32_t dword;
++ uint8_t byte[4];
++ } ident;
++ struct nand_chip *this = mtd->priv;
++ struct doc_priv *doc = (void *)this->priv;
++ unsigned long docptr = doc->virtadr;
++
++ doc200x_hwcontrol(mtd, NAND_CTL_SETCLE);
++ doc2000_write_byte(mtd, NAND_CMD_READID);
++ doc200x_hwcontrol(mtd, NAND_CTL_CLRCLE);
++ doc200x_hwcontrol(mtd, NAND_CTL_SETALE);
++ doc2000_write_byte(mtd, 0);
++ doc200x_hwcontrol(mtd, NAND_CTL_CLRALE);
++
++ ident.dword = readl(docptr + DoC_2k_CDSN_IO);
++ if (((ident.byte[0] << 8) | ident.byte[1]) == ret) {
++ printk(KERN_INFO "DiskOnChip 2000 responds to DWORD access\n");
++ this->read_buf = &doc2000_readbuf_dword;
++ }
++ }
++
++ return ret;
++}
++
++static void doc2000_count_chips(struct mtd_info *mtd)
++{
++ struct nand_chip *this = mtd->priv;
++ struct doc_priv *doc = (void *)this->priv;
++ uint16_t mfrid;
++ int i;
++
++ /* Max 4 chips per floor on DiskOnChip 2000 */
++ doc->chips_per_floor = 4;
++
++ /* Find out what the first chip is */
++ mfrid = doc200x_ident_chip(mtd, 0);
++
++ /* Find how many chips in each floor. */
++ for (i = 1; i < 4; i++) {
++ if (doc200x_ident_chip(mtd, i) != mfrid)
++ break;
++ }
++ doc->chips_per_floor = i;
++}
++
++static int doc200x_wait(struct mtd_info *mtd, struct nand_chip *this, int state)
++{
++ struct doc_priv *doc = (void *)this->priv;
++
++ int status;
++
++ DoC_WaitReady(doc);
++ this->cmdfunc(mtd, NAND_CMD_STATUS, -1, -1);
++ DoC_WaitReady(doc);
++ status = (int)this->read_byte(mtd);
++
++ return status;
++}
++
++static void doc2001_write_byte(struct mtd_info *mtd, u_char datum)
++{
++ struct nand_chip *this = mtd->priv;
++ struct doc_priv *doc = (void *)this->priv;
++ unsigned long docptr = doc->virtadr;
++
++ WriteDOC(datum, docptr, CDSNSlowIO);
++ WriteDOC(datum, docptr, Mil_CDSN_IO);
++ WriteDOC(datum, docptr, WritePipeTerm);
++}
++
++static u_char doc2001_read_byte(struct mtd_info *mtd)
++{
++ struct nand_chip *this = mtd->priv;
++ struct doc_priv *doc = (void *)this->priv;
++ unsigned long docptr = doc->virtadr;
++
++ ReadDOC(docptr, CDSNSlowIO);
++ /* 11.4.5 -- delay twice to allow extended length cycle */
++ DoC_Delay(doc, 2);
++ ReadDOC(docptr, ReadPipeInit);
++ return ReadDOC(docptr, Mil_CDSN_IO);
++}
++
++static void doc2001_writebuf(struct mtd_info *mtd,
++ const u_char *buf, int len)
++{
++ struct nand_chip *this = mtd->priv;
++ struct doc_priv *doc = (void *)this->priv;
++ unsigned long docptr = doc->virtadr;
++ int i;
++
++ for (i=0; i < len; i++)
++ WriteDOC_(buf[i], docptr, DoC_Mil_CDSN_IO + i);
++ /* Terminate write pipeline */
++ WriteDOC(0x00, docptr, WritePipeTerm);
++}
++
++static void doc2001_readbuf(struct mtd_info *mtd,
++ u_char *buf, int len)
++{
++ struct nand_chip *this = mtd->priv;
++ struct doc_priv *doc = (void *)this->priv;
++ unsigned long docptr = doc->virtadr;
++ int i;
++
++ /* Start read pipeline */
++ ReadDOC(docptr, ReadPipeInit);
++
++ for (i=0; i < len-1; i++)
++ buf[i] = ReadDOC(docptr, Mil_CDSN_IO);
++
++ /* Terminate read pipeline */
++ buf[i] = ReadDOC(docptr, LastDataRead);
++}
++static int doc2001_verifybuf(struct mtd_info *mtd,
++ const u_char *buf, int len)
++{
++ struct nand_chip *this = mtd->priv;
++ struct doc_priv *doc = (void *)this->priv;
++ unsigned long docptr = doc->virtadr;
++ int i;
++
++ /* Start read pipeline */
++ ReadDOC(docptr, ReadPipeInit);
++
++ for (i=0; i < len-1; i++)
++ if (buf[i] != ReadDOC(docptr, Mil_CDSN_IO)) {
++ ReadDOC(docptr, LastDataRead);
++ return i;
++ }
++ if (buf[i] != ReadDOC(docptr, LastDataRead))
++ return i;
++ return 0;
++}
++
++static void doc200x_select_chip(struct mtd_info *mtd, int chip)
++{
++ struct nand_chip *this = mtd->priv;
++ struct doc_priv *doc = (void *)this->priv;
++ unsigned long docptr = doc->virtadr;
++ int floor = 0;
++
++ /* 11.4.4 -- deassert CE before changing chip */
++ doc200x_hwcontrol(mtd, NAND_CTL_CLRNCE);
++
++ if(debug)printk("select chip (%d)\n", chip);
++
++ if (chip == -1)
++ return;
++
++ floor = chip / doc->chips_per_floor;
++ chip -= (floor * doc->chips_per_floor);
++
++ WriteDOC(floor, docptr, FloorSelect);
++ WriteDOC(chip, docptr, CDSNDeviceSelect);
++
++ doc200x_hwcontrol(mtd, NAND_CTL_SETNCE);
++
++ doc->curchip = chip;
++ doc->curfloor = floor;
++}
++
++static void doc200x_hwcontrol(struct mtd_info *mtd, int cmd)
++{
++ struct nand_chip *this = mtd->priv;
++ struct doc_priv *doc = (void *)this->priv;
++ unsigned long docptr = doc->virtadr;
++
++ switch(cmd) {
++ case NAND_CTL_SETNCE:
++ doc->CDSNControl |= CDSN_CTRL_CE;
++ break;
++ case NAND_CTL_CLRNCE:
++ doc->CDSNControl &= ~CDSN_CTRL_CE;
++ break;
++ case NAND_CTL_SETCLE:
++ doc->CDSNControl |= CDSN_CTRL_CLE;
++ break;
++ case NAND_CTL_CLRCLE:
++ doc->CDSNControl &= ~CDSN_CTRL_CLE;
++ break;
++ case NAND_CTL_SETALE:
++ doc->CDSNControl |= CDSN_CTRL_ALE;
++ break;
++ case NAND_CTL_CLRALE:
++ doc->CDSNControl &= ~CDSN_CTRL_ALE;
++ break;
++ case NAND_CTL_SETWP:
++ doc->CDSNControl |= CDSN_CTRL_WP;
++ break;
++ case NAND_CTL_CLRWP:
++ doc->CDSNControl &= ~CDSN_CTRL_WP;
++ break;
++ }
++ if (debug)printk("hwcontrol(%d): %02x\n", cmd, doc->CDSNControl);
++ WriteDOC(doc->CDSNControl, docptr, CDSNControl);
++ /* 11.4.3 -- 4 NOPs after CSDNControl write */
++ DoC_Delay(doc, 4);
++}
++
++static int doc200x_dev_ready(struct mtd_info *mtd)
++{
++ struct nand_chip *this = mtd->priv;
++ struct doc_priv *doc = (void *)this->priv;
++ unsigned long docptr = doc->virtadr;
++
++ /* 11.4.2 -- must NOP four times before checking FR/B# */
++ DoC_Delay(doc, 4);
++ if (!(ReadDOC(docptr, CDSNControl) & CDSN_CTRL_FR_B)) {
++ if(debug)
++ printk("not ready\n");
++ return 0;
++ }
++ /* 11.4.2 -- Must NOP twice if it's ready */
++ DoC_Delay(doc, 2);
++ if (debug)printk("was ready\n");
++ return 1;
++}
++
++static int doc200x_block_bad(struct mtd_info *mtd, unsigned long block)
++{
++ /* FIXME: Look it up in the BBT */
++ return 0;
++}
++
++struct doc_priv mydoc = {
++ .physadr = 0xd4000,
++ .curfloor = -1,
++ .curchip = -1,
++};
++
++u_char mydatabuf[528];
++
++struct nand_chip mynand = {
++ .priv = (void *)&mydoc,
++ .select_chip = doc200x_select_chip,
++ .hwcontrol = doc200x_hwcontrol,
++ .dev_ready = doc200x_dev_ready,
++ .waitfunc = doc200x_wait,
++ .block_bad = doc200x_block_bad,
++ .eccmode = NAND_ECC_SOFT,
++ .data_buf = mydatabuf,
++};
++
++struct mtd_info mymtd = {
++ .priv = (void *)&mynand,
++ .owner = THIS_MODULE,
++};
++
++int __init init_nanddoc(void)
++{
++ mydoc.virtadr = (unsigned long)ioremap(mydoc.physadr, DOC_IOREMAP_LEN);
++ int nrchips = 1;
++ char *name;
++
++ WriteDOC(DOC_MODE_CLR_ERR | DOC_MODE_MDWREN | DOC_MODE_RESET,
++ mydoc.virtadr, DOCControl);
++ WriteDOC(DOC_MODE_CLR_ERR | DOC_MODE_MDWREN | DOC_MODE_RESET,
++ mydoc.virtadr, DOCControl);
++
++ WriteDOC(DOC_MODE_CLR_ERR | DOC_MODE_MDWREN | DOC_MODE_NORMAL,
++ mydoc.virtadr, DOCControl);
++ WriteDOC(DOC_MODE_CLR_ERR | DOC_MODE_MDWREN | DOC_MODE_NORMAL,
++ mydoc.virtadr, DOCControl);
++
++ mydoc.ChipID = ReadDOC(mydoc.virtadr, ChipID);
++
++ switch(mydoc.ChipID) {
++ case DOC_ChipID_DocMil:
++ mynand.write_byte = doc2001_write_byte;
++ mynand.read_byte = doc2001_read_byte;
++ mynand.write_buf = doc2001_writebuf;
++ mynand.read_buf = doc2001_readbuf;
++ mynand.verify_buf = doc2001_verifybuf;
++
++ ReadDOC(mydoc.virtadr, ChipID);
++ ReadDOC(mydoc.virtadr, ChipID);
++ if (ReadDOC(mydoc.virtadr, ChipID) != DOC_ChipID_DocMil) {
++ /* It's not a Millennium; it's one of the newer
++ DiskOnChip 2000 units with a similar ASIC.
++ Treat it like a Millennium, except that it
++ can have multiple chips. */
++ doc2000_count_chips(&mymtd);
++ nrchips = 4 * mydoc.chips_per_floor;
++ name = "DiskOnChip 2000 (INFTL Model)";
++ } else {
++ /* Bog-standard Millennium */
++ mydoc.chips_per_floor = 1;
++ nrchips = 1;
++ name = "DiskOnChip Millennium";
++ }
++ break;
++
++ case DOC_ChipID_Doc2k:
++ mynand.write_byte = doc2000_write_byte;
++ mynand.read_byte = doc2000_read_byte;
++ mynand.write_buf = doc2000_writebuf;
++ mynand.read_buf = doc2000_readbuf;
++ mynand.verify_buf = doc2000_verifybuf;
++
++ doc2000_count_chips(&mymtd);
++ nrchips = 4 * mydoc.chips_per_floor;
++ name = "DiskOnChip 2000 (NFTL Model)";
++ mydoc.CDSNControl |= CDSN_CTRL_FLASH_IO;
++
++ break;
++
++ default:
++ return -EIO;
++ }
++ if (nand_scan(&mymtd, nrchips)) {
++ iounmap((void *)mydoc.virtadr);
++ return -EIO;
++ }
++ mymtd.name = name;
++ add_mtd_device(&mymtd);
++
++ return 0;
++}
++
++void __exit cleanup_nanddoc(void)
++{
++ del_mtd_device(&mymtd);
++ iounmap((void *)mydoc.virtadr);
++}
++
++module_init(init_nanddoc);
++module_exit(cleanup_nanddoc);
++
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org>");
++MODULE_DESCRIPTION("M-Systems DiskOnChip 2000 and Millennium device driver\n");
+diff -Nurb linux-mips-2.4.27/drivers/mtd/nand/edb7312.c linux/drivers/mtd/nand/edb7312.c
+--- linux-mips-2.4.27/drivers/mtd/nand/edb7312.c 2003-02-26 01:53:50.000000000 +0100
++++ linux/drivers/mtd/nand/edb7312.c 2004-11-19 10:25:11.997184896 +0100
+@@ -6,7 +6,7 @@
+ * Derived from drivers/mtd/nand/autcpu12.c
+ * Copyright (c) 2001 Thomas Gleixner (gleixner@autronix.de)
+ *
+- * $Id: edb7312.c,v 1.3 2002/06/06 12:58:16 mag Exp $
++ * $Id: edb7312.c,v 1.7 2003/07/11 15:12:29 dwmw2 Exp $
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+@@ -20,6 +20,7 @@
+
+ #include <linux/slab.h>
+ #include <linux/module.h>
++#include <linux/init.h>
+ #include <linux/mtd/mtd.h>
+ #include <linux/mtd/nand.h>
+ #include <linux/mtd/partitions.h>
+@@ -77,16 +78,13 @@
+ };
+ #define NUM_PARTITIONS 1
+
+-extern int parse_cmdline_partitions(struct mtd_info *master,
+- struct mtd_partition **pparts,
+- const char *mtd_id);
+ #endif
+
+
+ /*
+ * hardware specific access to control-lines
+ */
+-static void ep7312_hwcontrol(int cmd)
++static void ep7312_hwcontrol(struct mtd_info *mtd, int cmd)
+ {
+ switch(cmd) {
+
+@@ -116,10 +114,13 @@
+ /*
+ * read device ready pin
+ */
+-static int ep7312_device_ready(void)
++static int ep7312_device_ready(struct mtd_info *mtd)
+ {
+ return 1;
+ }
++#ifdef CONFIG_MTD_PARTITIONS
++const char *part_probes[] = { "cmdlinepart", NULL };
++#endif
+
+ /*
+ * Main initialization routine
+@@ -174,7 +175,7 @@
+ this->chip_delay = 15;
+
+ /* Scan to find existence of the device */
+- if (nand_scan (ep7312_mtd)) {
++ if (nand_scan (ep7312_mtd, 1)) {
+ iounmap((void *)ep7312_fio_base);
+ kfree (ep7312_mtd);
+ return -ENXIO;
+@@ -189,27 +190,16 @@
+ return -ENOMEM;
+ }
+
+- /* Allocate memory for internal data buffer */
+- this->data_cache = kmalloc (sizeof(u_char) * (ep7312_mtd->oobblock + ep7312_mtd->oobsize), GFP_KERNEL);
+- if (!this->data_cache) {
+- printk("Unable to allocate NAND data cache for EDB7312.\n");
+- kfree (this->data_buf);
+- iounmap((void *)ep7312_fio_base);
+- kfree (ep7312_mtd);
+- return -ENOMEM;
+- }
+- this->cache_page = -1;
+-
+-#ifdef CONFIG_MTD_CMDLINE_PARTS
+- mtd_parts_nb = parse_cmdline_partitions(ep7312_mtd, &mtd_parts,
+- "edb7312-nand");
++#ifdef CONFIG_PARTITIONS
++ ep7312_mtd->name = "edb7312-nand";
++ mtd_parts_nb = parse_mtd_partitions(ep7312_mtd, part_probes,
++ &mtd_parts, 0);
+ if (mtd_parts_nb > 0)
+ part_type = "command line";
+ else
+ mtd_parts_nb = 0;
+ #endif
+- if (mtd_parts_nb == 0)
+- {
++ if (mtd_parts_nb == 0) {
+ mtd_parts = partition_info;
+ mtd_parts_nb = NUM_PARTITIONS;
+ part_type = "static";
+@@ -236,7 +226,6 @@
+
+ /* Free internal data buffer */
+ kfree (this->data_buf);
+- kfree (this->data_cache);
+
+ /* Free the MTD device structure */
+ kfree (ep7312_mtd);
+diff -Nurb linux-mips-2.4.27/drivers/mtd/nand/nand.c linux/drivers/mtd/nand/nand.c
+--- linux-mips-2.4.27/drivers/mtd/nand/nand.c 2003-02-26 01:53:50.000000000 +0100
++++ linux/drivers/mtd/nand/nand.c 2004-11-19 10:25:12.010182920 +0100
+@@ -8,7 +8,7 @@
+ * Additional technical information is available on
+ * http://www.linux-mtd.infradead.org/tech/nand.html
+ *
+- * Copyright (C) 2000 Steven J. Hill (sjhill@cotw.com)
++ * Copyright (C) 2000 Steven J. Hill (sjhill@realitydiluted.com)
+ * 2002 Thomas Gleixner (tglx@linutronix.de)
+ *
+ * 10-29-2001 Thomas Gleixner (tglx@linutronix.de)
+@@ -112,10 +112,27 @@
+ * for mtd->read_ecc / mtd->write_ecc
+ * some minor cleanups
+ *
+- * 12-05-2000 tglx: Dave Ellis (DGE@sixnetio) provided the fix for
++ * 12-05-2002 tglx: Dave Ellis (DGE@sixnetio) provided the fix for
+ * WRITE_VERIFY long time ago. Thanks for remembering me.
+ *
+- * $Id: nand.c,v 1.36 2002/12/05 20:59:11 gleixner Exp $
++ * 02-14-2003 tglx: Reject non page aligned writes
++ * Fixed ecc select in nand_write_page to match semantics.
++ *
++ * 02-18-2003 tglx: Changed oobsel to pointer. Added a default oob-selector
++ *
++ * 02-18-2003 tglx: Implemented oobsel again. Now it uses a pointer to
++ + a structure, which will be supplied by a filesystem driver
++ * If NULL is given, then the defaults (none or defaults
++ * supplied by ioctl (MEMSETOOBSEL) are used.
++ * For partitions the partition defaults are used (mtdpart.c)
++ *
++ * 06-04-2003 tglx: fix compile errors and fix write verify problem for
++ * some chips, which need either a delay between the readback
++ * and the next write command or have the CE removed. The
++ * CE disable/enable is much faster than a 20us delay and
++ * it should work on all available chips.
++ *
++ * $Id: nand.c,v 1.60 2003/10/23 08:28:43 dwmw2 Exp $
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+@@ -130,102 +147,151 @@
+ #include <linux/mtd/mtd.h>
+ #include <linux/mtd/nand.h>
+ #include <linux/mtd/nand_ecc.h>
++#include <linux/mtd/compatmac.h>
+ #include <linux/interrupt.h>
+ #include <asm/io.h>
+
+ /*
+- * Macros for low-level register control
+- */
+-#define nand_select() this->hwcontrol(NAND_CTL_SETNCE);
+-
+-#define nand_deselect() this->hwcontrol(NAND_CTL_CLRNCE);
+-
+-/*
+- * out of band configuration for different filesystems
+- */
+-static int oobconfigs[][6] = {
+- { 0,0,0,0,0,0},
+-
+- { NAND_JFFS2_OOB_ECCPOS0, NAND_JFFS2_OOB_ECCPOS1, NAND_JFFS2_OOB_ECCPOS2,
+- NAND_JFFS2_OOB_ECCPOS3, NAND_JFFS2_OOB_ECCPOS4, NAND_JFFS2_OOB_ECCPOS5 },
+-
+- { NAND_YAFFS_OOB_ECCPOS0, NAND_YAFFS_OOB_ECCPOS1, NAND_YAFFS_OOB_ECCPOS2,
+- NAND_YAFFS_OOB_ECCPOS3, NAND_YAFFS_OOB_ECCPOS4, NAND_YAFFS_OOB_ECCPOS5 }
+-};
+-
+-/*
+ * NAND low-level MTD interface functions
+ */
++static void nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len);
++static void nand_read_buf(struct mtd_info *mtd, u_char *buf, int len);
++static int nand_verify_buf(struct mtd_info *mtd, const u_char *buf, int len);
++
+ static int nand_read (struct mtd_info *mtd, loff_t from, size_t len, size_t * retlen, u_char * buf);
+ static int nand_read_ecc (struct mtd_info *mtd, loff_t from, size_t len,
+- size_t * retlen, u_char * buf, u_char * eccbuf, int oobsel);
++ size_t * retlen, u_char * buf, u_char * eccbuf, struct nand_oobinfo *oobsel);
+ static int nand_read_oob (struct mtd_info *mtd, loff_t from, size_t len, size_t * retlen, u_char * buf);
+ static int nand_write (struct mtd_info *mtd, loff_t to, size_t len, size_t * retlen, const u_char * buf);
+ static int nand_write_ecc (struct mtd_info *mtd, loff_t to, size_t len,
+- size_t * retlen, const u_char * buf, u_char * eccbuf, int oobsel);
++ size_t * retlen, const u_char * buf, u_char * eccbuf, struct nand_oobinfo *oobsel);
+ static int nand_write_oob (struct mtd_info *mtd, loff_t to, size_t len, size_t * retlen, const u_char *buf);
+ static int nand_writev (struct mtd_info *mtd, const struct iovec *vecs,
+ unsigned long count, loff_t to, size_t * retlen);
+ static int nand_writev_ecc (struct mtd_info *mtd, const struct iovec *vecs,
+- unsigned long count, loff_t to, size_t * retlen, u_char *eccbuf, int oobsel);
++ unsigned long count, loff_t to, size_t * retlen, u_char *eccbuf, struct nand_oobinfo *oobsel);
+ static int nand_erase (struct mtd_info *mtd, struct erase_info *instr);
+ static void nand_sync (struct mtd_info *mtd);
+-static int nand_write_page (struct mtd_info *mtd, struct nand_chip *this, int page, int col,
+- int last, u_char *oob_buf, int oobsel);
++static int nand_write_page (struct mtd_info *mtd, struct nand_chip *this, int page, u_char *oob_buf, struct nand_oobinfo *oobsel);
++
++static u_char nand_read_byte(struct mtd_info *mtd)
++{
++ struct nand_chip *this = mtd->priv;
++ return readb(this->IO_ADDR_R);
++}
++
++static void nand_write_byte(struct mtd_info *mtd, u_char byte)
++{
++ struct nand_chip *this = mtd->priv;
++ writeb(byte, this->IO_ADDR_W);
++}
++
++static void nand_select_chip(struct mtd_info *mtd, int chip)
++{
++ struct nand_chip *this = mtd->priv;
++ switch(chip) {
++ case -1:
++ this->hwcontrol(mtd, NAND_CTL_CLRNCE);
++ break;
++ case 0:
++ this->hwcontrol(mtd, NAND_CTL_SETNCE);
++ break;
++
++ default:
++ BUG();
++ }
++}
++
++static void nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
++{
++ int i;
++ struct nand_chip *this = mtd->priv;
++
++ for (i=0; i<len; i++)
++ writeb(buf[i], this->IO_ADDR_W);
++}
++
++static void nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
++{
++ int i;
++ struct nand_chip *this = mtd->priv;
++
++ for (i=0; i<len; i++)
++ buf[i] = readb(this->IO_ADDR_R);
++}
++
++static int nand_verify_buf(struct mtd_info *mtd, const u_char *buf, int len)
++{
++ int i;
++ struct nand_chip *this = mtd->priv;
++
++ for (i=0; i<len; i++)
++ if (buf[i] != readb(this->IO_ADDR_R))
++ return i;
++
++ return 0;
++}
++
++/* Appropriate chip should already be selected */
++static int nand_block_bad(struct mtd_info *mtd, unsigned long page)
++{
++ struct nand_chip *this = mtd->priv;
++
++ this->cmdfunc (mtd, NAND_CMD_READOOB, NAND_BADBLOCK_POS, page);
++ if (this->read_byte(mtd) != 0xff)
++ return 1;
++
++ return 0;
++}
++
+ /*
+ * Send command to NAND device
+ */
+ static void nand_command (struct mtd_info *mtd, unsigned command, int column, int page_addr)
+ {
+ register struct nand_chip *this = mtd->priv;
+- register unsigned long NAND_IO_ADDR = this->IO_ADDR_W;
+
+ /* Begin command latch cycle */
+- this->hwcontrol (NAND_CTL_SETCLE);
++ this->hwcontrol(mtd, NAND_CTL_SETCLE);
+ /*
+ * Write out the command to the device.
+ */
+- if (command != NAND_CMD_SEQIN)
+- writeb (command, NAND_IO_ADDR);
+- else {
+- if (mtd->oobblock == 256 && column >= 256) {
+- column -= 256;
+- writeb (NAND_CMD_READOOB, NAND_IO_ADDR);
+- writeb (NAND_CMD_SEQIN, NAND_IO_ADDR);
+- } else if (mtd->oobblock == 512 && column >= 256) {
+- if (column < 512) {
+- column -= 256;
+- writeb (NAND_CMD_READ1, NAND_IO_ADDR);
+- writeb (NAND_CMD_SEQIN, NAND_IO_ADDR);
+- } else {
+- column -= 512;
+- writeb (NAND_CMD_READOOB, NAND_IO_ADDR);
+- writeb (NAND_CMD_SEQIN, NAND_IO_ADDR);
+- }
++ if (command == NAND_CMD_SEQIN) {
++ int readcmd;
++
++ if (column >= mtd->oobblock) {
++ /* OOB area */
++ column -= mtd->oobblock;
++ readcmd = NAND_CMD_READOOB;
++ } else if (column < 256) {
++ /* First 256 bytes --> READ0 */
++ readcmd = NAND_CMD_READ0;
+ } else {
+- writeb (NAND_CMD_READ0, NAND_IO_ADDR);
+- writeb (NAND_CMD_SEQIN, NAND_IO_ADDR);
++ column -= 256;
++ readcmd = NAND_CMD_READ1;
+ }
++ this->write_byte(mtd, readcmd);
+ }
++ this->write_byte(mtd, command);
+
+ /* Set ALE and clear CLE to start address cycle */
+- this->hwcontrol (NAND_CTL_CLRCLE);
++ this->hwcontrol(mtd, NAND_CTL_CLRCLE);
+
+ if (column != -1 || page_addr != -1) {
+- this->hwcontrol (NAND_CTL_SETALE);
++ this->hwcontrol(mtd, NAND_CTL_SETALE);
+
+ /* Serially input address */
+ if (column != -1)
+- writeb (column, NAND_IO_ADDR);
++ this->write_byte(mtd, column);
+ if (page_addr != -1) {
+- writeb ((unsigned char) (page_addr & 0xff), NAND_IO_ADDR);
+- writeb ((unsigned char) ((page_addr >> 8) & 0xff), NAND_IO_ADDR);
++ this->write_byte(mtd, (unsigned char) (page_addr & 0xff));
++ this->write_byte(mtd, (unsigned char) ((page_addr >> 8) & 0xff));
+ /* One more address cycle for higher density devices */
+ if (mtd->size & 0x0c000000)
+- writeb ((unsigned char) ((page_addr >> 16) & 0x0f), NAND_IO_ADDR);
++ this->write_byte(mtd, (unsigned char) ((page_addr >> 16) & 0x0f));
+ }
+ /* Latch in address */
+- this->hwcontrol (NAND_CTL_CLRALE);
++ this->hwcontrol(mtd, NAND_CTL_CLRALE);
+ }
+
+ /*
+@@ -244,10 +310,11 @@
+ case NAND_CMD_RESET:
+ if (this->dev_ready)
+ break;
+- this->hwcontrol (NAND_CTL_SETCLE);
+- writeb (NAND_CMD_STATUS, NAND_IO_ADDR);
+- this->hwcontrol (NAND_CTL_CLRCLE);
+- while ( !(readb (this->IO_ADDR_R) & 0x40));
++ udelay(this->chip_delay);
++ this->hwcontrol(mtd, NAND_CTL_SETCLE);
++ this->write_byte(mtd, NAND_CMD_STATUS);
++ this->hwcontrol(mtd, NAND_CTL_CLRCLE);
++ while ( !(this->read_byte(mtd) & 0x40));
+ return;
+
+ /* This applies to read commands */
+@@ -263,7 +330,7 @@
+ }
+
+ /* wait until command is processed */
+- while (!this->dev_ready());
++ while (!this->dev_ready(mtd));
+ }
+
+ /*
+@@ -288,17 +355,17 @@
+ spin_unlock_bh (&this->chip_lock);
+ return;
+ }
+-
++#if 0 /* This was broken. And of dubious utility */
+ if (this->state == FL_ERASING) {
+ if (new_state != FL_ERASING) {
+ this->state = new_state;
+ spin_unlock_bh (&this->chip_lock);
+- nand_select (); /* select in any case */
++ this->select_chip(mtd, 0); /* select in any case */
+ this->cmdfunc(mtd, NAND_CMD_RESET, -1, -1);
+ return;
+ }
+ }
+-
++#endif
+ set_current_state (TASK_UNINTERRUPTIBLE);
+ add_wait_queue (&this->wq, &wait);
+ spin_unlock_bh (&this->chip_lock);
+@@ -334,17 +401,17 @@
+ return 0;
+ }
+ if (this->dev_ready) {
+- if (this->dev_ready ())
++ if (this->dev_ready(mtd))
+ break;
+ }
+- if (readb (this->IO_ADDR_R) & 0x40)
++ if (this->read_byte(mtd) & 0x40)
+ break;
+
+ spin_unlock_bh (&this->chip_lock);
+ yield ();
+ spin_lock_bh (&this->chip_lock);
+ }
+- status = (int) readb (this->IO_ADDR_R);
++ status = (int) this->read_byte(mtd);
+ spin_unlock_bh (&this->chip_lock);
+
+ return status;
+@@ -352,14 +419,15 @@
+
+ /*
+ * Nand_page_program function is used for write and writev !
++ * This function will always program a full page of data
++ * If you call it with a non page aligned buffer, you're lost :)
+ */
+-static int nand_write_page (struct mtd_info *mtd, struct nand_chip *this,
+- int page, int col, int last, u_char *oob_buf, int oobsel)
++static int nand_write_page (struct mtd_info *mtd, struct nand_chip *this, int page, u_char *oob_buf, struct nand_oobinfo *oobsel)
+ {
+ int i, status;
+ u_char ecc_code[6], *oob_data;
+- int eccmode = oobsel ? this->eccmode : NAND_ECC_NONE;
+- int *oob_config = oobconfigs[oobsel];
++ int eccmode = oobsel->useecc ? this->eccmode : NAND_ECC_NONE;
++ int *oob_config = oobsel->eccpos;
+
+ /* pad oob area, if we have no oob buffer from fs-driver */
+ if (!oob_buf) {
+@@ -369,66 +437,42 @@
+ } else
+ oob_data = oob_buf;
+
+- /* software ecc 3 Bytes ECC / 256 Byte Data ? */
+- if (eccmode == NAND_ECC_SOFT) {
+- /* Read back previous written data, if col > 0 */
+- if (col) {
+- this->cmdfunc (mtd, NAND_CMD_READ0, 0, page);
+- for (i = 0; i < col; i++)
+- this->data_poi[i] = readb (this->IO_ADDR_R);
+- }
+- if ((col < this->eccsize) && (last >= this->eccsize)) {
+- this->calculate_ecc (&this->data_poi[0], &(ecc_code[0]));
+- for (i = 0; i < 3; i++)
+- oob_data[oob_config[i]] = ecc_code[i];
+- }
+- /* Calculate and write the second ECC if we have enough data */
+- if ((mtd->oobblock == 512) && (last == 512)) {
+- this->calculate_ecc (&this->data_poi[256], &(ecc_code[3]));
+- for (i = 3; i < 6; i++)
+- oob_data[oob_config[i]] = ecc_code[i];
+- }
+- } else {
+- /* For hardware ECC skip ECC, if we have no full page write */
+- if (eccmode != NAND_ECC_NONE && (col || last != mtd->oobblock))
+- eccmode = NAND_ECC_NONE;
+- }
+-
+- /* Prepad for partial page programming !!! */
+- for (i = 0; i < col; i++)
+- this->data_poi[i] = 0xff;
+-
+- /* Postpad for partial page programming !!! oob is already padded */
+- for (i = last; i < mtd->oobblock; i++)
+- this->data_poi[i] = 0xff;
+-
+ /* Send command to begin auto page programming */
+ this->cmdfunc (mtd, NAND_CMD_SEQIN, 0x00, page);
+
+ /* Write out complete page of data, take care of eccmode */
+- switch (this->eccmode) {
++ switch (eccmode) {
+ /* No ecc and software ecc 3/256, write all */
+ case NAND_ECC_NONE:
++ printk (KERN_WARNING "Writing data without ECC to NAND-FLASH is not recommended\n");
++ this->write_buf(mtd, this->data_poi, mtd->oobblock);
++ break;
+ case NAND_ECC_SOFT:
+- for (i = 0; i < mtd->oobblock; i++)
+- writeb ( this->data_poi[i] , this->IO_ADDR_W);
++ this->calculate_ecc(mtd, &this->data_poi[0], &(ecc_code[0]));
++ for (i = 0; i < 3; i++)
++ oob_data[oob_config[i]] = ecc_code[i];
++ /* Calculate and write the second ECC for 512 Byte page size */
++ if (mtd->oobblock == 512) {
++ this->calculate_ecc(mtd, &this->data_poi[256], &(ecc_code[3]));
++ for (i = 3; i < 6; i++)
++ oob_data[oob_config[i]] = ecc_code[i];
++ }
++ this->write_buf(mtd, this->data_poi, mtd->oobblock);
+ break;
+
+ /* Hardware ecc 3 byte / 256 data, write first half, get ecc, then second, if 512 byte pagesize */
+ case NAND_ECC_HW3_256:
+- this->enable_hwecc (NAND_ECC_WRITE); /* enable hardware ecc logic for write */
+- for (i = 0; i < mtd->eccsize; i++)
+- writeb ( this->data_poi[i] , this->IO_ADDR_W);
++ this->enable_hwecc(mtd, NAND_ECC_WRITE); /* enable hardware ecc logic for write */
++ this->write_buf(mtd, this->data_poi, mtd->eccsize);
+
+- this->calculate_ecc (NULL, &(ecc_code[0]));
++ this->calculate_ecc(mtd, NULL, &(ecc_code[0]));
+ for (i = 0; i < 3; i++)
+ oob_data[oob_config[i]] = ecc_code[i];
+
+ if (mtd->oobblock == 512) {
+- this->enable_hwecc (NAND_ECC_WRITE); /* enable hardware ecc logic for write*/
+- for (i = mtd->eccsize; i < mtd->oobblock; i++)
+- writeb ( this->data_poi[i] , this->IO_ADDR_W);
+- this->calculate_ecc (NULL, &(ecc_code[3]));
++ this->enable_hwecc(mtd, NAND_ECC_WRITE); /* enable hardware ecc logic for write*/
++ this->write_buf(mtd, &this->data_poi[mtd->eccsize], mtd->oobblock - mtd->eccsize);
++ this->calculate_ecc(mtd, NULL, &(ecc_code[3]));
+ for (i = 3; i < 6; i++)
+ oob_data[oob_config[i]] = ecc_code[i];
+ }
+@@ -436,20 +480,18 @@
+
+ /* Hardware ecc 3 byte / 512 byte data, write full page */
+ case NAND_ECC_HW3_512:
+- this->enable_hwecc (NAND_ECC_WRITE); /* enable hardware ecc logic */
+- for (i = 0; i < mtd->oobblock; i++)
+- writeb ( this->data_poi[i] , this->IO_ADDR_W);
+- this->calculate_ecc (NULL, &(ecc_code[0]));
++ this->enable_hwecc(mtd, NAND_ECC_WRITE); /* enable hardware ecc logic */
++ this->write_buf(mtd, this->data_poi, mtd->oobblock);
++ this->calculate_ecc(mtd, NULL, &(ecc_code[0]));
+ for (i = 0; i < 3; i++)
+ oob_data[oob_config[i]] = ecc_code[i];
+ break;
+
+ /* Hardware ecc 6 byte / 512 byte data, write full page */
+ case NAND_ECC_HW6_512:
+- this->enable_hwecc (NAND_ECC_WRITE); /* enable hardware ecc logic */
+- for (i = 0; i < mtd->oobblock; i++)
+- writeb ( this->data_poi[i] , this->IO_ADDR_W);
+- this->calculate_ecc (NULL, &(ecc_code[0]));
++ this->enable_hwecc(mtd, NAND_ECC_WRITE); /* enable hardware ecc logic */
++ this->write_buf(mtd, this->data_poi, mtd->oobblock);
++ this->calculate_ecc(mtd, NULL, &(ecc_code[0]));
+ for (i = 0; i < 6; i++)
+ oob_data[oob_config[i]] = ecc_code[i];
+ break;
+@@ -460,8 +502,7 @@
+ }
+
+ /* Write out OOB data */
+- for (i = 0; i < mtd->oobsize; i++)
+- writeb ( oob_data[i] , this->IO_ADDR_W);
++ this->write_buf(mtd, oob_data, mtd->oobsize);
+
+ /* Send command to actually program the data */
+ this->cmdfunc (mtd, NAND_CMD_PAGEPROG, -1, -1);
+@@ -490,25 +531,21 @@
+ */
+
+ /* Send command to read back the page */
+- this->cmdfunc (mtd, NAND_CMD_READ0, col, page);
++ this->cmdfunc (mtd, NAND_CMD_READ0, 0, page);
+ /* Loop through and verify the data */
+- for (i = col; i < last; i++) {
+- if (this->data_poi[i] != readb (this->IO_ADDR_R)) {
++ if (this->verify_buf(mtd, this->data_poi, mtd->oobblock)) {
+ DEBUG (MTD_DEBUG_LEVEL0, "%s: " "Failed write verify, page 0x%08x ", __FUNCTION__, page);
+ return -EIO;
+ }
+- }
+
+ /* check, if we have a fs-supplied oob-buffer */
+ if (oob_buf) {
+- for (i = 0; i < mtd->oobsize; i++) {
+- if (oob_data[i] != readb (this->IO_ADDR_R)) {
++ if (this->verify_buf(mtd, oob_data, mtd->oobsize)) {
+ DEBUG (MTD_DEBUG_LEVEL0, "%s: " "Failed write verify, page 0x%08x ", __FUNCTION__, page);
+ return -EIO;
+ }
+- }
+ } else {
+- if (eccmode != NAND_ECC_NONE && !col && last == mtd->oobblock) {
++ if (eccmode != NAND_ECC_NONE) {
+ int ecc_bytes = 0;
+
+ switch (this->eccmode) {
+@@ -518,8 +555,7 @@
+ case NAND_ECC_HW6_512: ecc_bytes = 6; break;
+ }
+
+- for (i = 0; i < mtd->oobsize; i++)
+- oob_data[i] = readb (this->IO_ADDR_R);
++ this->read_buf(mtd, oob_data, mtd->oobsize);
+
+ for (i = 0; i < ecc_bytes; i++) {
+ if (oob_data[oob_config[i]] != ecc_code[i]) {
+@@ -531,6 +567,13 @@
+ }
+ }
+ }
++ /*
++ * Terminate the read command. This is faster than sending a reset command or
++ * applying a 20us delay before issuing the next programm sequence.
++ * This is not a problem for all chips, but I have found a bunch of them.
++ */
++ this->select_chip(mtd, -1);
++ this->select_chip(mtd, 0);
+ #endif
+ return 0;
+ }
+@@ -540,7 +583,7 @@
+ */
+ static int nand_read (struct mtd_info *mtd, loff_t from, size_t len, size_t * retlen, u_char * buf)
+ {
+- return (nand_read_ecc (mtd, from, len, retlen, buf, NULL, 0));
++ return nand_read_ecc (mtd, from, len, retlen, buf, NULL, NULL);
+ }
+
+
+@@ -548,7 +591,7 @@
+ * NAND read with ECC
+ */
+ static int nand_read_ecc (struct mtd_info *mtd, loff_t from, size_t len,
+- size_t * retlen, u_char * buf, u_char * oob_buf, int oobsel)
++ size_t * retlen, u_char * buf, u_char * oob_buf, struct nand_oobinfo *oobsel)
+ {
+ int j, col, page, end, ecc;
+ int erase_state = 0;
+@@ -557,9 +600,15 @@
+ u_char *data_poi, *oob_data = oob_buf;
+ u_char ecc_calc[6];
+ u_char ecc_code[6];
+- int eccmode = oobsel ? this->eccmode : NAND_ECC_NONE;
++ int eccmode;
++ int *oob_config;
++
++ // use chip default if zero
++ if (oobsel == NULL)
++ oobsel = &mtd->oobinfo;
+
+- int *oob_config = oobconfigs[oobsel];
++ eccmode = oobsel->useecc ? this->eccmode : NAND_ECC_NONE;
++ oob_config = oobsel->eccpos;
+
+ DEBUG (MTD_DEBUG_LEVEL3, "nand_read_ecc: from = 0x%08x, len = %i\n", (unsigned int) from, (int) len);
+
+@@ -574,7 +623,7 @@
+ nand_get_chip (this, mtd ,FL_READING, &erase_state);
+
+ /* Select the NAND device */
+- nand_select ();
++ this->select_chip(mtd, 0);
+
+ /* First we calculate the starting page */
+ page = from >> this->page_shift;
+@@ -596,7 +645,7 @@
+ if (!this->dev_ready)
+ udelay (this->chip_delay);
+ else
+- while (!this->dev_ready());
++ while (!this->dev_ready(mtd));
+ }
+
+ /*
+@@ -616,39 +665,40 @@
+
+ j = 0;
+ switch (eccmode) {
+- case NAND_ECC_NONE: /* No ECC, Read in a page */
+- while (j < end)
+- data_poi[j++] = readb (this->IO_ADDR_R);
++ case NAND_ECC_NONE: { /* No ECC, Read in a page */
++ static unsigned long lastwhinge = 0;
++ if ((lastwhinge / HZ) != (jiffies / HZ)) {
++ printk (KERN_WARNING "Reading data from NAND FLASH without ECC is not recommended\n");
++ lastwhinge = jiffies;
++ }
++ this->read_buf(mtd, data_poi, end);
+ break;
++ }
+
+ case NAND_ECC_SOFT: /* Software ECC 3/256: Read in a page + oob data */
+- while (j < end)
+- data_poi[j++] = readb (this->IO_ADDR_R);
+- this->calculate_ecc (&data_poi[0], &ecc_calc[0]);
++ this->read_buf(mtd, data_poi, end);
++ this->calculate_ecc(mtd, &data_poi[0], &ecc_calc[0]);
+ if (mtd->oobblock == 512)
+- this->calculate_ecc (&data_poi[256], &ecc_calc[3]);
++ this->calculate_ecc(mtd, &data_poi[256], &ecc_calc[3]);
+ break;
+
+ case NAND_ECC_HW3_256: /* Hardware ECC 3 byte /256 byte data: Read in first 256 byte, get ecc, */
+- this->enable_hwecc (NAND_ECC_READ);
+- while (j < ecc)
+- data_poi[j++] = readb (this->IO_ADDR_R);
+- this->calculate_ecc (&data_poi[0], &ecc_calc[0]); /* read from hardware */
++ this->enable_hwecc(mtd, NAND_ECC_READ);
++ this->read_buf(mtd, data_poi, ecc);
++ this->calculate_ecc(mtd, &data_poi[0], &ecc_calc[0]); /* read from hardware */
+
+ if (mtd->oobblock == 512) { /* read second, if pagesize = 512 */
+- this->enable_hwecc (NAND_ECC_READ);
+- while (j < end)
+- data_poi[j++] = readb (this->IO_ADDR_R);
+- this->calculate_ecc (&data_poi[256], &ecc_calc[3]); /* read from hardware */
++ this->enable_hwecc(mtd, NAND_ECC_READ);
++ this->read_buf(mtd, &data_poi[ecc], end-ecc);
++ this->calculate_ecc(mtd, &data_poi[256], &ecc_calc[3]); /* read from hardware */
+ }
+ break;
+
+ case NAND_ECC_HW3_512:
+ case NAND_ECC_HW6_512: /* Hardware ECC 3/6 byte / 512 byte data : Read in a page */
+- this->enable_hwecc (NAND_ECC_READ);
+- while (j < end)
+- data_poi[j++] = readb (this->IO_ADDR_R);
+- this->calculate_ecc (&data_poi[0], &ecc_calc[0]); /* read from hardware */
++ this->enable_hwecc(mtd, NAND_ECC_READ);
++ this->read_buf(mtd, data_poi, end);
++ this->calculate_ecc(mtd, &data_poi[0], &ecc_calc[0]); /* read from hardware */
+ break;
+
+ default:
+@@ -658,7 +708,7 @@
+
+ /* read oobdata */
+ for (j = 0; j < mtd->oobsize; j++)
+- oob_data[oob + j] = readb (this->IO_ADDR_R);
++ oob_data[oob + j] = this->read_byte(mtd);
+
+ /* Skip ECC, if not active */
+ if (eccmode == NAND_ECC_NONE)
+@@ -669,7 +719,7 @@
+ ecc_code[j] = oob_data[oob + oob_config[j]];
+
+ /* correct data, if neccecary */
+- ecc_status = this->correct_data (&data_poi[0], &ecc_code[0], &ecc_calc[0]);
++ ecc_status = this->correct_data(mtd, &data_poi[0], &ecc_code[0], &ecc_calc[0]);
+ /* check, if we have a fs supplied oob-buffer */
+ if (oob_buf) {
+ oob += mtd->oobsize;
+@@ -682,7 +732,7 @@
+ }
+
+ if (mtd->oobblock == 512 && eccmode != NAND_ECC_HW3_512) {
+- ecc_status = this->correct_data (&data_poi[256], &ecc_code[3], &ecc_calc[3]);
++ ecc_status = this->correct_data(mtd, &data_poi[256], &ecc_code[3], &ecc_calc[3]);
+ if (oob_buf) {
+ *((int *)&oob_data[oob]) = ecc_status;
+ oob += sizeof(int);
+@@ -705,7 +755,7 @@
+ }
+
+ /* De-select the NAND device */
+- nand_deselect ();
++ this->select_chip(mtd, -1);
+
+ /* Wake up anyone waiting on the device */
+ spin_lock_bh (&this->chip_lock);
+@@ -753,7 +803,7 @@
+ nand_get_chip (this, mtd , FL_READING, &erase_state);
+
+ /* Select the NAND device */
+- nand_select ();
++ this->select_chip(mtd, 0);
+
+ /* Send the read command */
+ this->cmdfunc (mtd, NAND_CMD_READOOB, col, page);
+@@ -761,13 +811,20 @@
+ * Read the data, if we read more than one page
+ * oob data, let the device transfer the data !
+ */
+- for (i = 0; i < len; i++) {
+- buf[i] = readb (this->IO_ADDR_R);
+- if ((col++ & (mtd->oobsize - 1)) == (mtd->oobsize - 1))
++ i = 0;
++ while (i < len) {
++ int thislen = (mtd->oobsize - col) & (mtd->oobsize - 1);
++ if (!thislen)
++ thislen = mtd->oobsize;
++ thislen = min_t(int, thislen, len);
++ this->read_buf(mtd, &buf[i], thislen);
++ i += thislen;
++ col += thislen;
++ /* Delay between pages */
+ udelay (this->chip_delay);
+ }
+ /* De-select the NAND device */
+- nand_deselect ();
++ this->select_chip(mtd, -1);
+
+ /* Wake up anyone waiting on the device */
+ spin_lock_bh (&this->chip_lock);
+@@ -780,45 +837,54 @@
+ return 0;
+ }
+
++#define NOTALIGNED(x) (x & (mtd->oobblock-1)) != 0
++
+ /*
+ * Use NAND write ECC
+ */
+ static int nand_write (struct mtd_info *mtd, loff_t to, size_t len, size_t * retlen, const u_char * buf)
+ {
+- return (nand_write_ecc (mtd, to, len, retlen, buf, NULL, 0));
++ return (nand_write_ecc (mtd, to, len, retlen, buf, NULL, NULL));
+ }
+ /*
+ * NAND write with ECC
+ */
+ static int nand_write_ecc (struct mtd_info *mtd, loff_t to, size_t len,
+- size_t * retlen, const u_char * buf, u_char * eccbuf, int oobsel)
++ size_t * retlen, const u_char * buf, u_char * eccbuf, struct nand_oobinfo *oobsel)
+ {
+- int i, page, col, cnt, ret = 0, oob = 0, written = 0;
++ int page, ret = 0, oob = 0, written = 0;
+ struct nand_chip *this = mtd->priv;
+
+ DEBUG (MTD_DEBUG_LEVEL3, "nand_write_ecc: to = 0x%08x, len = %i\n", (unsigned int) to, (int) len);
+
+ /* Do not allow write past end of device */
+ if ((to + len) > mtd->size) {
+- DEBUG (MTD_DEBUG_LEVEL0, "nand_write_oob: Attempt to write past end of page\n");
++ DEBUG (MTD_DEBUG_LEVEL0, "nand_write_ecc: Attempt to write past end of page\n");
++ return -EINVAL;
++ }
++
++ /* reject writes, which are not page aligned */
++ if (NOTALIGNED (to) || NOTALIGNED(len)) {
++ printk (KERN_NOTICE "nand_write_ecc: Attempt to write not page aligned data\n");
+ return -EINVAL;
+ }
+
++ // if oobsel is NULL, use chip defaults
++ if (oobsel == NULL)
++ oobsel = &mtd->oobinfo;
++
+ /* Shift to get page */
+ page = ((int) to) >> this->page_shift;
+
+- /* Get the starting column */
+- col = to & (mtd->oobblock - 1);
+-
+ /* Grab the lock and see if the device is available */
+ nand_get_chip (this, mtd, FL_WRITING, NULL);
+
+ /* Select the NAND device */
+- nand_select ();
++ this->select_chip(mtd, 0);
+
+ /* Check the WP bit */
+ this->cmdfunc (mtd, NAND_CMD_STATUS, -1, -1);
+- if (!(readb (this->IO_ADDR_R) & 0x80)) {
++ if (!(this->read_byte(mtd) & 0x80)) {
+ DEBUG (MTD_DEBUG_LEVEL0, "nand_write_ecc: Device is write protected!!!\n");
+ ret = -EIO;
+ goto out;
+@@ -826,42 +892,27 @@
+
+ /* Loop until all data is written */
+ while (written < len) {
+- /*
+- * Check, if we have a full page write, then we can
+- * use the given buffer, else we have to copy
+- */
+- if (!col && (len - written) >= mtd->oobblock) {
++ int cnt = mtd->oobblock;
+ this->data_poi = (u_char*) &buf[written];
+- cnt = mtd->oobblock;
+- } else {
+- cnt = 0;
+- for (i = col; i < len && i < mtd->oobblock; i++) {
+- this->data_buf[i] = buf[written + i];
+- cnt++;
+- }
+- this->data_poi = this->data_buf;
+- }
+- /* We use the same function for write and writev !) */
++ /* We use the same function for write and writev */
+ if (eccbuf) {
+- ret = nand_write_page (mtd, this, page, col, cnt ,&eccbuf[oob], oobsel);
++ ret = nand_write_page (mtd, this, page, &eccbuf[oob], oobsel);
+ oob += mtd->oobsize;
+ } else
+- ret = nand_write_page (mtd, this, page, col, cnt, NULL, oobsel);
++ ret = nand_write_page (mtd, this, page, NULL, oobsel);
+
+ if (ret)
+ goto out;
+
+ /* Update written bytes count */
+ written += cnt;
+- /* Next write is aligned */
+- col = 0;
+ /* Increment page address */
+ page++;
+ }
+
+ out:
+ /* De-select the NAND device */
+- nand_deselect ();
++ this->select_chip(mtd, -1);
+
+ /* Wake up anyone waiting on the device */
+ spin_lock_bh (&this->chip_lock);
+@@ -873,13 +924,21 @@
+ return ret;
+ }
+
++static u_char ffchars[] = {
++ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
++ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
++};
++
+ /*
+ * NAND write out-of-band
+ */
+ static int nand_write_oob (struct mtd_info *mtd, loff_t to, size_t len, size_t * retlen, const u_char * buf)
+ {
+- int i, column, page, status, ret = 0;
++ int column, page, status, ret = 0;
+ struct nand_chip *this = mtd->priv;
++#ifdef CONFIG_MTD_NAND_VERIFY_WRITE
++ int i;
++#endif
+
+ DEBUG (MTD_DEBUG_LEVEL3, "nand_write_oob: to = 0x%08x, len = %i\n", (unsigned int) to, (int) len);
+
+@@ -902,27 +961,31 @@
+ nand_get_chip (this, mtd, FL_WRITING, NULL);
+
+ /* Select the NAND device */
+- nand_select ();
++ this->select_chip(mtd, 0);
++
++ /* Reset the chip. Some chips (like the Toshiba TC5832DC found
++ in one of my DiskOnChip 2000 test units) will clear the whole
++ data page too if we don't do this. I have no clue why, but
++ I seem to have 'fixed' it in the doc2000 driver in
++ August 1999. dwmw2. */
++ this->cmdfunc(mtd, NAND_CMD_RESET, -1, -1);
+
+ /* Check the WP bit */
+ this->cmdfunc (mtd, NAND_CMD_STATUS, -1, -1);
+- if (!(readb (this->IO_ADDR_R) & 0x80)) {
++ if (!(this->read_byte(mtd) & 0x80)) {
+ DEBUG (MTD_DEBUG_LEVEL0, "nand_write_oob: Device is write protected!!!\n");
+ ret = -EIO;
+ goto out;
+ }
+-
+ /* Write out desired data */
+ this->cmdfunc (mtd, NAND_CMD_SEQIN, mtd->oobblock, page);
++
+ /* prepad 0xff for partial programming */
+- for (i = 0; i < column; i++)
+- writeb (0xff, this->IO_ADDR_W);
++ this->write_buf(mtd, ffchars, column);
+ /* write data */
+- for (i = 0; i < len; i++)
+- writeb (buf[i], this->IO_ADDR_W);
++ this->write_buf(mtd, buf, len);
+ /* postpad 0xff for partial programming */
+- for (i = len + column; i < mtd->oobsize; i++)
+- writeb (0xff, this->IO_ADDR_W);
++ this->write_buf(mtd, ffchars, mtd->oobsize - (len+column));
+
+ /* Send command to program the OOB data */
+ this->cmdfunc (mtd, NAND_CMD_PAGEPROG, -1, -1);
+@@ -944,7 +1007,7 @@
+
+ /* Loop through and verify the data */
+ for (i = 0; i < len; i++) {
+- if (buf[i] != readb (this->IO_ADDR_R)) {
++ if (buf[i] != this->read_byte(mtd)) {
+ DEBUG (MTD_DEBUG_LEVEL0, "nand_write_oob: " "Failed write verify, page 0x%08x\n", page);
+ ret = -EIO;
+ goto out;
+@@ -954,7 +1017,7 @@
+
+ out:
+ /* De-select the NAND device */
+- nand_deselect ();
++ this->select_chip(mtd, -1);
+
+ /* Wake up anyone waiting on the device */
+ spin_lock_bh (&this->chip_lock);
+@@ -976,9 +1039,9 @@
+ }
+
+ static int nand_writev_ecc (struct mtd_info *mtd, const struct iovec *vecs, unsigned long count,
+- loff_t to, size_t * retlen, u_char *eccbuf, int oobsel)
++ loff_t to, size_t * retlen, u_char *eccbuf, struct nand_oobinfo *oobsel)
+ {
+- int i, page, col, cnt, len, total_len, ret = 0, written = 0;
++ int i, page, len, total_len, ret = 0, written = 0;
+ struct nand_chip *this = mtd->priv;
+
+ /* Calculate total length of data */
+@@ -995,39 +1058,42 @@
+ return -EINVAL;
+ }
+
++ /* reject writes, which are not page aligned */
++ if (NOTALIGNED (to) || NOTALIGNED(total_len)) {
++ printk (KERN_NOTICE "nand_write_ecc: Attempt to write not page aligned data\n");
++ return -EINVAL;
++ }
++
++ // if oobsel is NULL, use chip defaults
++ if (oobsel == NULL)
++ oobsel = &mtd->oobinfo;
++
+ /* Shift to get page */
+ page = ((int) to) >> this->page_shift;
+
+- /* Get the starting column */
+- col = to & (mtd->oobblock - 1);
+-
+ /* Grab the lock and see if the device is available */
+ nand_get_chip (this, mtd, FL_WRITING, NULL);
+
+ /* Select the NAND device */
+- nand_select ();
++ this->select_chip(mtd, 0);
+
+ /* Check the WP bit */
+ this->cmdfunc (mtd, NAND_CMD_STATUS, -1, -1);
+- if (!(readb (this->IO_ADDR_R) & 0x80)) {
++ if (!(this->read_byte(mtd) & 0x80)) {
+ DEBUG (MTD_DEBUG_LEVEL0, "nand_writev: Device is write protected!!!\n");
+ ret = -EIO;
+ goto out;
+ }
+
+ /* Loop until all iovecs' data has been written */
+- cnt = col;
+ len = 0;
+-
+ while (count) {
+ /*
+- * Check, if we write from offset 0 and if the tuple
+- * gives us not enough data for a full page write. Then we
+- * can use the iov direct, else we have to copy into
+- * data_buf.
++ * Check, if the tuple gives us not enough data for a
++ * full page write. Then we can use the iov direct,
++ * else we have to copy into data_buf.
+ */
+- if (!cnt && (vecs->iov_len - len) >= mtd->oobblock) {
+- cnt = mtd->oobblock;
++ if ((vecs->iov_len - len) >= mtd->oobblock) {
+ this->data_poi = (u_char *) vecs->iov_base;
+ this->data_poi += len;
+ len += mtd->oobblock;
+@@ -1042,6 +1108,7 @@
+ * Read data out of each tuple until we have a full page
+ * to write or we've read all the tuples.
+ */
++ int cnt = 0;
+ while ((cnt < mtd->oobblock) && count) {
+ if (vecs->iov_base != NULL && vecs->iov_len) {
+ this->data_buf[cnt++] = ((u_char *) vecs->iov_base)[len++];
+@@ -1057,15 +1124,12 @@
+ }
+
+ /* We use the same function for write and writev !) */
+- ret = nand_write_page (mtd, this, page, col, cnt, NULL, oobsel);
++ ret = nand_write_page (mtd, this, page, NULL, oobsel);
+ if (ret)
+ goto out;
+
+ /* Update written bytes count */
+- written += (cnt - col);
+-
+- /* Reset written byte counter and column */
+- col = cnt = 0;
++ written += mtd->oobblock;;
+
+ /* Increment page address */
+ page++;
+@@ -1073,7 +1137,7 @@
+
+ out:
+ /* De-select the NAND device */
+- nand_deselect ();
++ this->select_chip(mtd, -1);
+
+ /* Wake up anyone waiting on the device */
+ spin_lock_bh (&this->chip_lock);
+@@ -1125,11 +1189,11 @@
+ pages_per_block = mtd->erasesize / mtd->oobblock;
+
+ /* Select the NAND device */
+- nand_select ();
++ this->select_chip(mtd, 0);
+
+ /* Check the WP bit */
+ this->cmdfunc (mtd, NAND_CMD_STATUS, -1, -1);
+- if (!(readb (this->IO_ADDR_R) & 0x80)) {
++ if (!(this->read_byte(mtd) & 0x80)) {
+ DEBUG (MTD_DEBUG_LEVEL0, "nand_erase: Device is write protected!!!\n");
+ instr->state = MTD_ERASE_FAILED;
+ goto erase_exit;
+@@ -1142,8 +1206,7 @@
+
+ while (len) {
+ /* Check if we have a bad block, we do not erase bad blocks ! */
+- this->cmdfunc (mtd, NAND_CMD_READOOB, NAND_BADBLOCK_POS, page);
+- if (readb (this->IO_ADDR_R) != 0xff) {
++ if (this->block_bad(mtd, page)) {
+ printk (KERN_WARNING "nand_erase: attempt to erase a bad block at page 0x%08x\n", page);
+ instr->state = MTD_ERASE_FAILED;
+ goto erase_exit;
+@@ -1179,7 +1242,7 @@
+ if (this->state == FL_ERASING || this->state == FL_READY) {
+ /* Select the NAND device again, if we were interrupted */
+ this->state = FL_ERASING;
+- nand_select ();
++ this->select_chip(mtd, 0);
+ continue;
+ } else {
+ set_current_state (TASK_UNINTERRUPTIBLE);
+@@ -1194,7 +1257,7 @@
+
+ erase_exit:
+ /* De-select the NAND device */
+- nand_deselect ();
++ this->select_chip(mtd, -1);
+ spin_unlock_bh (&this->chip_lock);
+
+ ret = instr->state == MTD_ERASE_DONE ? 0 : -EIO;;
+@@ -1205,6 +1268,7 @@
+ /* The device is ready */
+ spin_lock_bh (&this->chip_lock);
+ this->state = FL_READY;
++ wake_up (&this->wq);
+ spin_unlock_bh (&this->chip_lock);
+
+ /* Return more or less happy */
+@@ -1259,7 +1323,7 @@
+ /*
+ * Scan for the NAND device
+ */
+-int nand_scan (struct mtd_info *mtd)
++int nand_scan (struct mtd_info *mtd, int maxchips)
+ {
+ int i, nand_maf_id, nand_dev_id;
+ struct nand_chip *this = mtd->priv;
+@@ -1276,23 +1340,38 @@
+ if (this->waitfunc == NULL)
+ this->waitfunc = nand_wait;
+
++ if (!this->block_bad)
++ this->block_bad = nand_block_bad;
++ if (!this->select_chip)
++ this->select_chip = nand_select_chip;
++ if (!this->write_byte)
++ this->write_byte = nand_write_byte;
++ if (!this->read_byte)
++ this->read_byte = nand_read_byte;
++ if (!this->write_buf)
++ this->write_buf = nand_write_buf;
++ if (!this->read_buf)
++ this->read_buf = nand_read_buf;
++ if (!this->verify_buf)
++ this->verify_buf = nand_verify_buf;
++
+ /* Select the device */
+- nand_select ();
++ this->select_chip(mtd, 0);
+
+ /* Send the command for reading device ID */
+ this->cmdfunc (mtd, NAND_CMD_READID, 0x00, -1);
+
+ /* Read manufacturer and device IDs */
+- nand_maf_id = readb (this->IO_ADDR_R);
+- nand_dev_id = readb (this->IO_ADDR_R);
++ nand_maf_id = this->read_byte(mtd);
++ nand_dev_id = this->read_byte(mtd);
+
+ /* Print and store flash device information */
+ for (i = 0; nand_flash_ids[i].name != NULL; i++) {
+ if (nand_dev_id == nand_flash_ids[i].id && !mtd->size) {
+ mtd->name = nand_flash_ids[i].name;
+ mtd->erasesize = nand_flash_ids[i].erasesize;
+- mtd->size = (1 << nand_flash_ids[i].chipshift);
+ mtd->eccsize = 256;
++ this->chipshift = nand_flash_ids[i].chipshift;
+ if (nand_flash_ids[i].page256) {
+ mtd->oobblock = 256;
+ mtd->oobsize = 8;
+@@ -1307,13 +1386,34 @@
+ if (nand_manuf_ids[i].id == nand_maf_id)
+ break;
+ }
+- printk (KERN_INFO "NAND device: Manufacture ID:"
++ printk (KERN_INFO "NAND device: Manufacturer ID:"
+ " 0x%02x, Chip ID: 0x%02x (%s %s)\n", nand_maf_id, nand_dev_id,
+ nand_manuf_ids[i].name , mtd->name);
+ break;
+ }
+ }
+
++ if (!mtd->name) {
++ printk (KERN_WARNING "No NAND device found!!!\n");
++ return 1;
++ }
++
++ for (i=1; i < maxchips; i++) {
++ this->select_chip(mtd, i);
++
++ /* Send the command for reading device ID */
++ this->cmdfunc (mtd, NAND_CMD_READID, 0x00, -1);
++
++ /* Read manufacturer and device IDs */
++ if (nand_maf_id != this->read_byte(mtd) ||
++ nand_dev_id != this->read_byte(mtd))
++ break;
++ }
++ if (i > 1)
++ printk(KERN_INFO "%d NAND chips detected\n", i);
++
++ mtd->size = (1 << this->chipshift) /* * i when we fix the rest of the code */;
++
+ /*
+ * check ECC mode, default to software
+ * if 3byte/512byte hardware ECC is selected and we have 256 byte pagesize
+@@ -1324,6 +1424,7 @@
+ switch (this->eccmode) {
+
+ case NAND_ECC_HW3_512:
++ case NAND_ECC_HW6_512:
+ if (mtd->oobblock == 256) {
+ printk (KERN_WARNING "512 byte HW ECC not possible on 256 Byte pagesize, fallback to SW ECC \n");
+ this->eccmode = NAND_ECC_SOFT;
+@@ -1340,6 +1441,7 @@
+ BUG();
+
+ case NAND_ECC_NONE:
++ printk (KERN_WARNING "NAND_ECC_NONE selected by board driver. This is not recommended !!\n");
+ this->eccmode = NAND_ECC_NONE;
+ break;
+
+@@ -1359,18 +1461,11 @@
+ spin_lock_init (&this->chip_lock);
+
+ /* De-select the device */
+- nand_deselect ();
+-
+- /* Print warning message for no device */
+- if (!mtd->size) {
+- printk (KERN_WARNING "No NAND device found!!!\n");
+- return 1;
+- }
++ this->select_chip(mtd, -1);
+
+ /* Fill in remaining MTD driver data */
+ mtd->type = MTD_NANDFLASH;
+ mtd->flags = MTD_CAP_NANDFLASH | MTD_ECC;
+- mtd->module = THIS_MODULE;
+ mtd->ecctype = MTD_ECC_SW;
+ mtd->erase = nand_erase;
+ mtd->point = NULL;
+@@ -1389,6 +1484,7 @@
+ mtd->unlock = NULL;
+ mtd->suspend = NULL;
+ mtd->resume = NULL;
++ mtd->owner = THIS_MODULE;
+
+ /* Return happy */
+ return 0;
+@@ -1397,5 +1493,5 @@
+ EXPORT_SYMBOL (nand_scan);
+
+ MODULE_LICENSE ("GPL");
+-MODULE_AUTHOR ("Steven J. Hill <sjhill@cotw.com>, Thomas Gleixner <tglx@linutronix.de>");
++MODULE_AUTHOR ("Steven J. Hill <sjhill@realitydiluted.com>, Thomas Gleixner <tglx@linutronix.de>");
+ MODULE_DESCRIPTION ("Generic NAND flash driver code");
+diff -Nurb linux-mips-2.4.27/drivers/mtd/nand/nand_ecc.c linux/drivers/mtd/nand/nand_ecc.c
+--- linux-mips-2.4.27/drivers/mtd/nand/nand_ecc.c 2003-02-26 01:53:50.000000000 +0100
++++ linux/drivers/mtd/nand/nand_ecc.c 2004-11-19 10:25:12.011182768 +0100
+@@ -1,10 +1,10 @@
+ /*
+ * drivers/mtd/nand_ecc.c
+ *
+- * Copyright (C) 2000 Steven J. Hill (sjhill@cotw.com)
++ * Copyright (C) 2000 Steven J. Hill (sjhill@realitydiluted.com)
+ * Toshiba America Electronics Components, Inc.
+ *
+- * $Id: nand_ecc.c,v 1.8 2002/09/16 09:19:53 dwmw2 Exp $
++ * $Id: nand_ecc.c,v 1.10 2003/07/01 23:31:15 dwmw2 Exp $
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+@@ -17,6 +17,7 @@
+ #include <linux/types.h>
+ #include <linux/kernel.h>
+ #include <linux/module.h>
++#include <linux/mtd/nand_ecc.h>
+
+ /*
+ * Pre-calculated 256-way 1 byte column parity
+@@ -84,7 +85,7 @@
+ /*
+ * Calculate 3 byte ECC code for 256 byte block
+ */
+-void nand_calculate_ecc (const u_char *dat, u_char *ecc_code)
++void nand_calculate_ecc(struct mtd_info *mtd, const u_char *dat, u_char *ecc_code)
+ {
+ u_char idx, reg1, reg2, reg3;
+ int j;
+@@ -119,7 +120,7 @@
+ /*
+ * Detect and correct a 1 bit error for 256 byte block
+ */
+-int nand_correct_data (u_char *dat, u_char *read_ecc, u_char *calc_ecc)
++int nand_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_ecc, u_char *calc_ecc)
+ {
+ u_char a, b, c, d1, d2, d3, add, bit, i;
+
+@@ -209,5 +210,5 @@
+ EXPORT_SYMBOL(nand_correct_data);
+
+ MODULE_LICENSE("GPL");
+-MODULE_AUTHOR("Steven J. Hill <sjhill@cotw.com>");
++MODULE_AUTHOR("Steven J. Hill <sjhill@realitydiluted.com>");
+ MODULE_DESCRIPTION("Generic NAND ECC support");
+diff -Nurb linux-mips-2.4.27/drivers/mtd/nand/nand_ids.c linux/drivers/mtd/nand/nand_ids.c
+--- linux-mips-2.4.27/drivers/mtd/nand/nand_ids.c 2003-02-26 01:53:50.000000000 +0100
++++ linux/drivers/mtd/nand/nand_ids.c 2004-11-19 10:25:12.013182464 +0100
+@@ -4,7 +4,7 @@
+ * Copyright (C) 2002 Thomas Gleixner (tglx@linutronix.de)
+ *
+ *
+- * $Id: nand_ids.c,v 1.1 2002/12/02 22:06:04 gleixner Exp $
++ * $Id: nand_ids.c,v 1.4 2003/05/21 15:15:08 dwmw2 Exp $
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+@@ -18,21 +18,21 @@
+ * Chip ID list
+ */
+ struct nand_flash_dev nand_flash_ids[] = {
+- {"NAND 1MB 5V", 0x6e, 20, 0x1000, 1}, // 1Mb 5V
+- {"NAND 2MB 5V", 0x64, 21, 0x1000, 1}, // 2Mb 5V
+- {"NAND 4MB 5V", 0x6b, 22, 0x2000, 0}, // 4Mb 5V
+- {"NAND 1MB 3,3V", 0xe8, 20, 0x1000, 1}, // 1Mb 3.3V
+- {"NAND 1MB 3,3V", 0xec, 20, 0x1000, 1}, // 1Mb 3.3V
+- {"NAND 2MB 3,3V", 0xea, 21, 0x1000, 1}, // 2Mb 3.3V
+- {"NAND 4MB 3,3V", 0xd5, 22, 0x2000, 0}, // 4Mb 3.3V
+- {"NAND 4MB 3,3V", 0xe3, 22, 0x2000, 0}, // 4Mb 3.3V
+- {"NAND 4MB 3,3V", 0xe5, 22, 0x2000, 0}, // 4Mb 3.3V
+- {"NAND 8MB 3,3V", 0xd6, 23, 0x2000, 0}, // 8Mb 3.3V
+- {"NAND 8MB 3,3V", 0xe6, 23, 0x2000, 0}, // 8Mb 3.3V
+- {"NAND 16MB 3,3V", 0x73, 24, 0x4000, 0},// 16Mb 3,3V
+- {"NAND 32MB 3,3V", 0x75, 25, 0x4000, 0}, // 32Mb 3,3V
+- {"NAND 64MB 3,3V", 0x76, 26, 0x4000, 0}, // 64Mb 3,3V
+- {"NAND 128MB 3,3V", 0x79, 27, 0x4000, 0}, // 128Mb 3,3V
++ {"NAND 1MiB 5V", 0x6e, 20, 0x1000, 1},
++ {"NAND 2MiB 5V", 0x64, 21, 0x1000, 1},
++ {"NAND 4MiB 5V", 0x6b, 22, 0x2000, 0},
++ {"NAND 1MiB 3,3V", 0xe8, 20, 0x1000, 1},
++ {"NAND 1MiB 3,3V", 0xec, 20, 0x1000, 1},
++ {"NAND 2MiB 3,3V", 0xea, 21, 0x1000, 1},
++ {"NAND 4MiB 3,3V", 0xd5, 22, 0x2000, 0},
++ {"NAND 4MiB 3,3V", 0xe3, 22, 0x2000, 0},
++ {"NAND 4MiB 3,3V", 0xe5, 22, 0x2000, 0},
++ {"NAND 8MiB 3,3V", 0xd6, 23, 0x2000, 0},
++ {"NAND 8MiB 3,3V", 0xe6, 23, 0x2000, 0},
++ {"NAND 16MiB 3,3V", 0x73, 24, 0x4000, 0},
++ {"NAND 32MiB 3,3V", 0x75, 25, 0x4000, 0},
++ {"NAND 64MiB 3,3V", 0x76, 26, 0x4000, 0},
++ {"NAND 128MiB 3,3V", 0x79, 27, 0x4000, 0},
+ {NULL,}
+ };
+
+diff -Nurb linux-mips-2.4.27/drivers/mtd/nand/spia.c linux/drivers/mtd/nand/spia.c
+--- linux-mips-2.4.27/drivers/mtd/nand/spia.c 2003-02-26 01:53:50.000000000 +0100
++++ linux/drivers/mtd/nand/spia.c 2004-11-19 10:25:12.014182312 +0100
+@@ -1,14 +1,14 @@
+ /*
+ * drivers/mtd/nand/spia.c
+ *
+- * Copyright (C) 2000 Steven J. Hill (sjhill@cotw.com)
++ * Copyright (C) 2000 Steven J. Hill (sjhill@realitydiluted.com)
+ *
+ *
+ * 10-29-2001 TG change to support hardwarespecific access
+ * to controllines (due to change in nand.c)
+ * page_cache added
+ *
+- * $Id: spia.c,v 1.16 2002/03/05 13:50:47 dwmw2 Exp $
++ * $Id: spia.c,v 1.21 2003/07/11 15:12:29 dwmw2 Exp $
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+@@ -20,6 +20,8 @@
+ * a 64Mibit (8MiB x 8 bits) NAND flash device.
+ */
+
++#include <linux/kernel.h>
++#include <linux/init.h>
+ #include <linux/slab.h>
+ #include <linux/module.h>
+ #include <linux/mtd/mtd.h>
+@@ -35,14 +37,14 @@
+ /*
+ * Values specific to the SPIA board (used with EP7212 processor)
+ */
+-#define SPIA_IO_ADDR = 0xd0000000 /* Start of EP7212 IO address space */
+-#define SPIA_FIO_ADDR = 0xf0000000 /* Address where flash is mapped */
+-#define SPIA_PEDR = 0x0080 /*
++#define SPIA_IO_BASE 0xd0000000 /* Start of EP7212 IO address space */
++#define SPIA_FIO_BASE 0xf0000000 /* Address where flash is mapped */
++#define SPIA_PEDR 0x0080 /*
+ * IO offset to Port E data register
+ * where the CLE, ALE and NCE pins
+ * are wired to.
+ */
+-#define SPIA_PEDDR = 0x00c0 /*
++#define SPIA_PEDDR 0x00c0 /*
+ * IO offset to Port E data direction
+ * register so we can control the IO
+ * lines.
+@@ -62,21 +64,20 @@
+ MODULE_PARM(spia_pedr, "i");
+ MODULE_PARM(spia_peddr, "i");
+
+-__setup("spia_io_base=",spia_io_base);
+-__setup("spia_fio_base=",spia_fio_base);
+-__setup("spia_pedr=",spia_pedr);
+-__setup("spia_peddr=",spia_peddr);
+-
+ /*
+ * Define partitions for flash device
+ */
+ const static struct mtd_partition partition_info[] = {
+- { name: "SPIA flash partition 1",
+- offset: 0,
+- size: 2*1024*1024 },
+- { name: "SPIA flash partition 2",
+- offset: 2*1024*1024,
+- size: 6*1024*1024 }
++ {
++ .name = "SPIA flash partition 1",
++ .offset = 0,
++ .size = 2*1024*1024
++ },
++ {
++ .name = "SPIA flash partition 2",
++ .offset = 2*1024*1024,
++ .size = 6*1024*1024
++ }
+ };
+ #define NUM_PARTITIONS 2
+
+@@ -84,7 +85,7 @@
+ /*
+ * hardware specific access to control-lines
+ */
+-void spia_hwcontrol(int cmd){
++static void spia_hwcontrol(struct mtd_info *mtd, int cmd){
+
+ switch(cmd){
+
+@@ -139,7 +140,7 @@
+ this->chip_delay = 15;
+
+ /* Scan to find existence of the device */
+- if (nand_scan (spia_mtd)) {
++ if (nand_scan (spia_mtd, 1)) {
+ kfree (spia_mtd);
+ return -ENXIO;
+ }
+@@ -152,16 +153,6 @@
+ return -ENOMEM;
+ }
+
+- /* Allocate memory for internal data buffer */
+- this->data_cache = kmalloc (sizeof(u_char) * (spia_mtd->oobblock + spia_mtd->oobsize), GFP_KERNEL);
+- if (!this->data_cache) {
+- printk ("Unable to allocate NAND data cache for SPIA.\n");
+- kfree (this->data_buf);
+- kfree (spia_mtd);
+- return = -ENOMEM;
+- }
+- this->cache_page = -1;
+-
+ /* Register the partitions */
+ add_mtd_partitions(spia_mtd, partition_info, NUM_PARTITIONS);
+
+@@ -183,7 +174,6 @@
+
+ /* Free internal data buffer */
+ kfree (this->data_buf);
+- kfree (this->page_cache);
+
+ /* Free the MTD device structure */
+ kfree (spia_mtd);
+@@ -192,5 +182,5 @@
+ #endif
+
+ MODULE_LICENSE("GPL");
+-MODULE_AUTHOR("Steven J. Hill <sjhill@cotw.com");
++MODULE_AUTHOR("Steven J. Hill <sjhill@realitydiluted.com");
+ MODULE_DESCRIPTION("Board-specific glue layer for NAND flash on SPIA board");
+diff -Nurb linux-mips-2.4.27/drivers/mtd/nand/toto.c linux/drivers/mtd/nand/toto.c
+--- linux-mips-2.4.27/drivers/mtd/nand/toto.c 1970-01-01 01:00:00.000000000 +0100
++++ linux/drivers/mtd/nand/toto.c 2004-11-19 10:25:12.016182008 +0100
+@@ -0,0 +1,221 @@
++/*
++ * drivers/mtd/nand/toto.c
++ *
++ * Copyright (c) 2003 Texas Instruments
++ *
++ * Derived from drivers/mtd/autcpu12.c
++ *
++ * Copyright (c) 2002 Thomas Gleixner <tgxl@linutronix.de>
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation.
++ *
++ * Overview:
++ * This is a device driver for the NAND flash device found on the
++ * TI fido board. It supports 32MiB and 64MiB cards
++ *
++ * $Id: toto.c,v 1.2 2003/10/21 10:04:58 dwmw2 Exp $
++ */
++
++#include <linux/slab.h>
++#include <linux/init.h>
++#include <linux/module.h>
++#include <linux/delay.h>
++#include <linux/mtd/mtd.h>
++#include <linux/mtd/nand.h>
++#include <linux/mtd/partitions.h>
++#include <asm/io.h>
++#include <asm/arch/hardware.h>
++#include <asm/sizes.h>
++#include <asm/arch/toto.h>
++#include <asm/arch-omap1510/hardware.h>
++#include <asm/arch/gpio.h>
++
++/*
++ * MTD structure for TOTO board
++ */
++static struct mtd_info *toto_mtd = NULL;
++
++static int toto_io_base = OMAP_FLASH_1_BASE;
++
++#define CONFIG_NAND_WORKAROUND 1
++
++#define NAND_NCE 0x4000
++#define NAND_CLE 0x1000
++#define NAND_ALE 0x0002
++#define NAND_MASK (NAND_CLE | NAND_ALE | NAND_NCE)
++
++#define T_NAND_CTL_CLRALE(iob) gpiosetout(NAND_ALE, 0)
++#define T_NAND_CTL_SETALE(iob) gpiosetout(NAND_ALE, NAND_ALE)
++#ifdef CONFIG_NAND_WORKAROUND /* "some" dev boards busted, blue wired to rts2 :( */
++#define T_NAND_CTL_CLRCLE(iob) gpiosetout(NAND_CLE, 0); rts2setout(2, 2)
++#define T_NAND_CTL_SETCLE(iob) gpiosetout(NAND_CLE, NAND_CLE); rts2setout(2, 0)
++#else
++#define T_NAND_CTL_CLRCLE(iob) gpiosetout(NAND_CLE, 0)
++#define T_NAND_CTL_SETCLE(iob) gpiosetout(NAND_CLE, NAND_CLE)
++#endif
++#define T_NAND_CTL_SETNCE(iob) gpiosetout(NAND_NCE, 0)
++#define T_NAND_CTL_CLRNCE(iob) gpiosetout(NAND_NCE, NAND_NCE)
++
++/*
++ * Define partitions for flash devices
++ */
++
++static struct mtd_partition partition_info64M[] = {
++ { .name = "toto kernel partition 1",
++ .offset = 0,
++ .size = 2 * SZ_1M },
++ { .name = "toto file sys partition 2",
++ .offset = 2 * SZ_1M,
++ .size = 14 * SZ_1M },
++ { .name = "toto user partition 3",
++ .offset = 16 * SZ_1M,
++ .size = 16 * SZ_1M },
++ { .name = "toto devboard extra partition 4",
++ .offset = 32 * SZ_1M,
++ .size = 32 * SZ_1M },
++};
++
++static struct mtd_partition partition_info32M[] = {
++ { .name = "toto kernel partition 1",
++ .offset = 0,
++ .size = 2 * SZ_1M },
++ { .name = "toto file sys partition 2",
++ .offset = 2 * SZ_1M,
++ .size = 14 * SZ_1M },
++ { .name = "toto user partition 3",
++ .offset = 16 * SZ_1M,
++ .size = 16 * SZ_1M },
++};
++
++#define NUM_PARTITIONS32M 3
++#define NUM_PARTITIONS64M 4
++/*
++ * hardware specific access to control-lines
++*/
++
++static void toto_hwcontrol(struct mtd_info *mtd, int cmd)
++{
++
++ udelay(1); /* hopefully enough time for tc make proceding write to clear */
++ switch(cmd){
++
++ case NAND_CTL_SETCLE: T_NAND_CTL_SETCLE(cmd); break;
++ case NAND_CTL_CLRCLE: T_NAND_CTL_CLRCLE(cmd); break;
++
++ case NAND_CTL_SETALE: T_NAND_CTL_SETALE(cmd); break;
++ case NAND_CTL_CLRALE: T_NAND_CTL_CLRALE(cmd); break;
++
++ case NAND_CTL_SETNCE: T_NAND_CTL_SETNCE(cmd); break;
++ case NAND_CTL_CLRNCE: T_NAND_CTL_CLRNCE(cmd); break;
++ }
++ udelay(1); /* allow time to ensure gpio state to over take memory write */
++}
++
++/*
++ * Main initialization routine
++ */
++int __init toto_init (void)
++{
++ struct nand_chip *this;
++ int err = 0;
++
++ /* Allocate memory for MTD device structure and private data */
++ toto_mtd = kmalloc (sizeof(struct mtd_info) + sizeof (struct nand_chip),
++ GFP_KERNEL);
++ if (!toto_mtd) {
++ printk (KERN_WARNING "Unable to allocate toto NAND MTD device structure.\n");
++ err = -ENOMEM;
++ goto out;
++ }
++
++ /* Get pointer to private data */
++ this = (struct nand_chip *) (&toto_mtd[1]);
++
++ /* Initialize structures */
++ memset((char *) toto_mtd, 0, sizeof(struct mtd_info));
++ memset((char *) this, 0, sizeof(struct nand_chip));
++
++ /* Link the private data with the MTD structure */
++ toto_mtd->priv = this;
++
++ /* Set address of NAND IO lines */
++ this->IO_ADDR_R = toto_io_base;
++ this->IO_ADDR_W = toto_io_base;
++ this->hwcontrol = toto_hwcontrol;
++ this->dev_ready = NULL;
++ /* 25 us command delay time */
++ this->chip_delay = 30;
++ this->eccmode = NAND_ECC_SOFT;
++
++ /* Scan to find existance of the device */
++ if (nand_scan (toto_mtd, 1)) {
++ err = -ENXIO;
++ goto out_mtd;
++ }
++
++ /* Allocate memory for internal data buffer */
++ this->data_buf = kmalloc (sizeof(u_char) * (toto_mtd->oobblock + toto_mtd->oobsize), GFP_KERNEL);
++ if (!this->data_buf) {
++ printk (KERN_WARNING "Unable to allocate NAND data buffer for toto.\n");
++ err = -ENOMEM;
++ goto out_mtd;
++ }
++
++ /* Register the partitions */
++ switch(toto_mtd->size){
++ case SZ_64M: add_mtd_partitions(toto_mtd, partition_info64M, NUM_PARTITIONS64M); break;
++ case SZ_32M: add_mtd_partitions(toto_mtd, partition_info32M, NUM_PARTITIONS32M); break;
++ default: {
++ printk (KERN_WARNING "Unsupported Nand device\n");
++ err = -ENXIO;
++ goto out_buf;
++ }
++ }
++
++ gpioreserve(NAND_MASK); /* claim our gpios */
++ archflashwp(0,0); /* open up flash for writing */
++
++ goto out;
++
++out_buf:
++ kfree (this->data_buf);
++out_mtd:
++ kfree (toto_mtd);
++out:
++ return err;
++}
++
++module_init(toto_init);
++
++/*
++ * Clean up routine
++ */
++static void __exit toto_cleanup (void)
++{
++ struct nand_chip *this = (struct nand_chip *) &toto_mtd[1];
++
++ /* Unregister partitions */
++ del_mtd_partitions(toto_mtd);
++
++ /* Unregister the device */
++ del_mtd_device (toto_mtd);
++
++ /* Free internal data buffers */
++ kfree (this->data_buf);
++
++ /* Free the MTD device structure */
++ kfree (toto_mtd);
++
++ /* stop flash writes */
++ archflashwp(0,1);
++
++ /* release gpios to system */
++ gpiorelease(NAND_MASK);
++}
++module_exit(toto_cleanup);
++
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("Richard Woodruff <r-woodruff2@ti.com>");
++MODULE_DESCRIPTION("Glue layer for NAND flash on toto board");
+diff -Nurb linux-mips-2.4.27/drivers/mtd/nand/tx4925ndfmc.c linux/drivers/mtd/nand/tx4925ndfmc.c
+--- linux-mips-2.4.27/drivers/mtd/nand/tx4925ndfmc.c 1970-01-01 01:00:00.000000000 +0100
++++ linux/drivers/mtd/nand/tx4925ndfmc.c 2004-11-19 10:25:12.017181856 +0100
+@@ -0,0 +1,442 @@
++/*
++ * drivers/mtd/tx4925ndfmc.c
++ *
++ * Overview:
++ * This is a device driver for the NAND flash device found on the
++ * Toshiba RBTX4925 reference board, which is a SmartMediaCard. It supports
++ * 16MiB, 32MiB and 64MiB cards.
++ *
++ * Author: MontaVista Software, Inc. source@mvista.com
++ *
++ * Derived from drivers/mtd/autcpu12.c
++ * Copyright (c) 2001 Thomas Gleixner (gleixner@autronix.de)
++ *
++ * $Id: tx4925ndfmc.c,v 1.1 2003/11/04 22:59:11 ahennessy Exp $
++ *
++ * Copyright (C) 2001 Toshiba Corporation
++ *
++ * 2003 (c) MontaVista Software, Inc. This file is licensed under
++ * the terms of the GNU General Public License version 2. This program
++ * is licensed "as is" without any warranty of any kind, whether express
++ * or implied.
++ *
++ */
++
++#include <linux/slab.h>
++#include <linux/init.h>
++#include <linux/module.h>
++#include <linux/mtd/mtd.h>
++#include <linux/mtd/nand.h>
++#include <linux/mtd/partitions.h>
++#include <linux/delay.h>
++#include <asm/io.h>
++#include <asm/tx4925/tx4925_nand.h>
++
++extern struct nand_oobinfo jffs2_oobinfo;
++
++/*
++ * MTD structure for RBTX4925 board
++ */
++static struct mtd_info *tx4925ndfmc_mtd = NULL;
++
++/*
++ * Module stuff
++ */
++#if LINUX_VERSION_CODE < 0x20212 && defined(MODULE)
++#define tx4925ndfmc_init init_module
++#define tx4925ndfmc_cleanup cleanup_module
++#endif
++
++/*
++ * Define partitions for flash devices
++ */
++
++static struct mtd_partition partition_info16k[] = {
++ { .name = "RBTX4925 flash partition 1",
++ .offset = 0,
++ .size = 8 * 0x00100000 },
++ { .name = "RBTX4925 flash partition 2",
++ .offset = 8 * 0x00100000,
++ .size = 8 * 0x00100000 },
++};
++
++static struct mtd_partition partition_info32k[] = {
++ { .name = "RBTX4925 flash partition 1",
++ .offset = 0,
++ .size = 8 * 0x00100000 },
++ { .name = "RBTX4925 flash partition 2",
++ .offset = 8 * 0x00100000,
++ .size = 24 * 0x00100000 },
++};
++
++static struct mtd_partition partition_info64k[] = {
++ { .name = "User FS",
++ .offset = 0,
++ .size = 16 * 0x00100000 },
++ { .name = "RBTX4925 flash partition 2",
++ .offset = 16 * 0x00100000,
++ .size = 48 * 0x00100000},
++};
++
++static struct mtd_partition partition_info128k[] = {
++ { .name = "Skip bad section",
++ .offset = 0,
++ .size = 16 * 0x00100000 },
++ { .name = "User FS",
++ .offset = 16 * 0x00100000,
++ .size = 112 * 0x00100000 },
++};
++#define NUM_PARTITIONS16K 2
++#define NUM_PARTITIONS32K 2
++#define NUM_PARTITIONS64K 2
++#define NUM_PARTITIONS128K 2
++
++/*
++ * hardware specific access to control-lines
++*/
++static void tx4925ndfmc_hwcontrol(struct mtd_info *mtd, int cmd)
++{
++
++ switch(cmd){
++
++ case NAND_CTL_SETCLE:
++ tx4925_ndfmcptr->mcr |= TX4925_NDFMCR_CLE;
++ break;
++ case NAND_CTL_CLRCLE:
++ tx4925_ndfmcptr->mcr &= ~TX4925_NDFMCR_CLE;
++ break;
++ case NAND_CTL_SETALE:
++ tx4925_ndfmcptr->mcr |= TX4925_NDFMCR_ALE;
++ break;
++ case NAND_CTL_CLRALE:
++ tx4925_ndfmcptr->mcr &= ~TX4925_NDFMCR_ALE;
++ break;
++ case NAND_CTL_SETNCE:
++ tx4925_ndfmcptr->mcr |= TX4925_NDFMCR_CE;
++ break;
++ case NAND_CTL_CLRNCE:
++ tx4925_ndfmcptr->mcr &= ~TX4925_NDFMCR_CE;
++ break;
++ case NAND_CTL_SETWP:
++ tx4925_ndfmcptr->mcr |= TX4925_NDFMCR_WE;
++ break;
++ case NAND_CTL_CLRWP:
++ tx4925_ndfmcptr->mcr &= ~TX4925_NDFMCR_WE;
++ break;
++ }
++}
++
++/*
++* read device ready pin
++*/
++static int tx4925ndfmc_device_ready(struct mtd_info *mtd)
++{
++ int ready;
++ ready = (tx4925_ndfmcptr->sr & TX4925_NDSFR_BUSY) ? 0 : 1;
++ return ready;
++}
++void tx4925ndfmc_enable_hwecc(struct mtd_info *mtd, int mode)
++{
++ /* reset first */
++ tx4925_ndfmcptr->mcr |= TX4925_NDFMCR_ECC_CNTL_MASK;
++ tx4925_ndfmcptr->mcr &= ~TX4925_NDFMCR_ECC_CNTL_MASK;
++ tx4925_ndfmcptr->mcr |= TX4925_NDFMCR_ECC_CNTL_ENAB;
++}
++static void tx4925ndfmc_disable_ecc(void)
++{
++ tx4925_ndfmcptr->mcr &= ~TX4925_NDFMCR_ECC_CNTL_MASK;
++}
++static void tx4925ndfmc_enable_read_ecc(void)
++{
++ tx4925_ndfmcptr->mcr &= ~TX4925_NDFMCR_ECC_CNTL_MASK;
++ tx4925_ndfmcptr->mcr |= TX4925_NDFMCR_ECC_CNTL_READ;
++}
++void tx4925ndfmc_readecc(struct mtd_info *mtd, const u_char *dat, u_char *ecc_code){
++ int i;
++ u_char *ecc = ecc_code;
++ tx4925ndfmc_enable_read_ecc();
++ for (i = 0;i < 6;i++,ecc++)
++ *ecc = tx4925_read_nfmc(&(tx4925_ndfmcptr->dtr));
++ tx4925ndfmc_disable_ecc();
++}
++void tx4925ndfmc_device_setup(void)
++{
++
++ *(unsigned char *)0xbb005000 &= ~0x08;
++
++ /* reset NDFMC */
++ tx4925_ndfmcptr->rstr |= TX4925_NDFRSTR_RST;
++ while (tx4925_ndfmcptr->rstr & TX4925_NDFRSTR_RST);
++
++ /* setup BusSeparete, Hold Time, Strobe Pulse Width */
++ tx4925_ndfmcptr->mcr = TX4925_BSPRT ? TX4925_NDFMCR_BSPRT : 0;
++ tx4925_ndfmcptr->spr = TX4925_HOLD << 4 | TX4925_SPW;
++}
++static u_char tx4925ndfmc_nand_read_byte(struct mtd_info *mtd)
++{
++ struct nand_chip *this = mtd->priv;
++ return tx4925_read_nfmc(this->IO_ADDR_R);
++}
++
++static void tx4925ndfmc_nand_write_byte(struct mtd_info *mtd, u_char byte)
++{
++ struct nand_chip *this = mtd->priv;
++ tx4925_write_nfmc(byte, this->IO_ADDR_W);
++}
++
++static void tx4925ndfmc_nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
++{
++ int i;
++ struct nand_chip *this = mtd->priv;
++
++ for (i=0; i<len; i++)
++ tx4925_write_nfmc(buf[i], this->IO_ADDR_W);
++}
++
++static void tx4925ndfmc_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
++{
++ int i;
++ struct nand_chip *this = mtd->priv;
++
++ for (i=0; i<len; i++)
++ buf[i] = tx4925_read_nfmc(this->IO_ADDR_R);
++}
++
++static int tx4925ndfmc_nand_verify_buf(struct mtd_info *mtd, const u_char *buf, int len)
++{
++ int i;
++ struct nand_chip *this = mtd->priv;
++
++ for (i=0; i<len; i++)
++ if (buf[i] != tx4925_read_nfmc(this->IO_ADDR_R))
++ return i;
++
++ return 0;
++}
++
++/*
++ * Send command to NAND device
++ */
++static void tx4925ndfmc_nand_command (struct mtd_info *mtd, unsigned command, int column, int page_addr)
++{
++ register struct nand_chip *this = mtd->priv;
++
++ /* Begin command latch cycle */
++ this->hwcontrol(mtd, NAND_CTL_SETCLE);
++ /*
++ * Write out the command to the device.
++ */
++ if (command == NAND_CMD_SEQIN) {
++ int readcmd;
++
++ if (column >= mtd->oobblock) {
++ /* OOB area */
++ column -= mtd->oobblock;
++ readcmd = NAND_CMD_READOOB;
++ } else if (column < 256) {
++ /* First 256 bytes --> READ0 */
++ readcmd = NAND_CMD_READ0;
++ } else {
++ column -= 256;
++ readcmd = NAND_CMD_READ1;
++ }
++ this->write_byte(mtd, readcmd);
++ }
++ this->write_byte(mtd, command);
++
++ /* Set ALE and clear CLE to start address cycle */
++ this->hwcontrol(mtd, NAND_CTL_CLRCLE);
++
++ if (column != -1 || page_addr != -1) {
++ this->hwcontrol(mtd, NAND_CTL_SETALE);
++
++ /* Serially input address */
++ if (column != -1)
++ this->write_byte(mtd, column);
++ if (page_addr != -1) {
++ this->write_byte(mtd, (unsigned char) (page_addr & 0xff));
++ this->write_byte(mtd, (unsigned char) ((page_addr >> 8) & 0xff));
++ /* One more address cycle for higher density devices */
++ if (mtd->size & 0x0c000000)
++ this->write_byte(mtd, (unsigned char) ((page_addr >> 16) & 0x0f));
++ }
++ /* Latch in address */
++ this->hwcontrol(mtd, NAND_CTL_CLRALE);
++ }
++
++ /*
++ * program and erase have their own busy handlers
++ * status and sequential in needs no delay
++ */
++ switch (command) {
++
++ case NAND_CMD_PAGEPROG:
++ /* Turn off WE */
++ this->hwcontrol (mtd, NAND_CTL_CLRWP);
++ return;
++
++ case NAND_CMD_SEQIN:
++ /* Turn on WE */
++ this->hwcontrol (mtd, NAND_CTL_SETWP);
++ return;
++
++ case NAND_CMD_ERASE1:
++ case NAND_CMD_ERASE2:
++ case NAND_CMD_STATUS:
++ return;
++
++ case NAND_CMD_RESET:
++ if (this->dev_ready)
++ break;
++ this->hwcontrol(mtd, NAND_CTL_SETCLE);
++ this->write_byte(mtd, NAND_CMD_STATUS);
++ this->hwcontrol(mtd, NAND_CTL_CLRCLE);
++ while ( !(this->read_byte(mtd) & 0x40));
++ return;
++
++ /* This applies to read commands */
++ default:
++ /*
++ * If we don't have access to the busy pin, we apply the given
++ * command delay
++ */
++ if (!this->dev_ready) {
++ udelay (this->chip_delay);
++ return;
++ }
++ }
++
++ /* wait until command is processed */
++ while (!this->dev_ready(mtd));
++}
++
++#ifdef CONFIG_MTD_CMDLINE_PARTS
++extern int parse_cmdline_partitions(struct mtd_info *master, struct mtd_partitio
++n **pparts, char *);
++#endif
++
++/*
++ * Main initialization routine
++ */
++extern int nand_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_ecc, u_char *calc_ecc);
++int __init tx4925ndfmc_init (void)
++{
++ struct nand_chip *this;
++ int err = 0;
++
++ /* Allocate memory for MTD device structure and private data */
++ tx4925ndfmc_mtd = kmalloc (sizeof(struct mtd_info) + sizeof (struct nand_chip),
++ GFP_KERNEL);
++ if (!tx4925ndfmc_mtd) {
++ printk ("Unable to allocate RBTX4925 NAND MTD device structure.\n");
++ err = -ENOMEM;
++ goto out;
++ }
++
++ tx4925ndfmc_device_setup();
++
++ /* io is indirect via a register so don't need to ioremap address */
++
++ /* Get pointer to private data */
++ this = (struct nand_chip *) (&tx4925ndfmc_mtd[1]);
++
++ /* Initialize structures */
++ memset((char *) tx4925ndfmc_mtd, 0, sizeof(struct mtd_info));
++ memset((char *) this, 0, sizeof(struct nand_chip));
++
++ /* Link the private data with the MTD structure */
++ tx4925ndfmc_mtd->priv = this;
++
++ /* Set address of NAND IO lines */
++ this->IO_ADDR_R = (unsigned long)&(tx4925_ndfmcptr->dtr);
++ this->IO_ADDR_W = (unsigned long)&(tx4925_ndfmcptr->dtr);
++ this->hwcontrol = tx4925ndfmc_hwcontrol;
++ this->enable_hwecc = tx4925ndfmc_enable_hwecc;
++ this->calculate_ecc = tx4925ndfmc_readecc;
++ this->correct_data = nand_correct_data;
++ this->eccmode = NAND_ECC_HW6_512;
++ this->dev_ready = tx4925ndfmc_device_ready;
++ /* 20 us command delay time */
++ this->chip_delay = 20;
++ this->read_byte = tx4925ndfmc_nand_read_byte;
++ this->write_byte = tx4925ndfmc_nand_write_byte;
++ this->cmdfunc = tx4925ndfmc_nand_command;
++ this->write_buf = tx4925ndfmc_nand_write_buf;
++ this->read_buf = tx4925ndfmc_nand_read_buf;
++ this->verify_buf = tx4925ndfmc_nand_verify_buf;
++
++ /* Scan to find existance of the device */
++ if (nand_scan (tx4925ndfmc_mtd, 1)) {
++ err = -ENXIO;
++ goto out_ior;
++ }
++
++ /* Allocate memory for internal data buffer */
++ this->data_buf = kmalloc (sizeof(u_char) * (tx4925ndfmc_mtd->oobblock + tx4925ndfmc_mtd->oobsize), GFP_KERNEL);
++ if (!this->data_buf) {
++ printk ("Unable to allocate NAND data buffer for RBTX4925.\n");
++ err = -ENOMEM;
++ goto out_ior;
++ }
++
++ /* Register the partitions */
++#ifdef CONFIG_MTD_CMDLINE_PARTS
++ {
++ int mtd_parts_nb = 0;
++ struct mtd_partition *mtd_parts = 0;
++ mtd_parts_nb = parse_cmdline_partitions(tx4925ndfmc_mtd, &mtd_parts, "tx4925ndfmc");
++ if (mtd_parts_nb > 0)
++ add_mtd_partitions(tx4925ndfmc_mtd, mtd_parts, mtd_parts_nb);
++ else
++ add_mtd_device(tx4925ndfmc_mtd);
++ }
++#else /* ifdef CONFIG_MTD_CMDLINE_PARTS */
++ switch(tx4925ndfmc_mtd->size){
++ case 0x01000000: add_mtd_partitions(tx4925ndfmc_mtd, partition_info16k, NUM_PARTITIONS16K); break;
++ case 0x02000000: add_mtd_partitions(tx4925ndfmc_mtd, partition_info32k, NUM_PARTITIONS32K); break;
++ case 0x04000000: add_mtd_partitions(tx4925ndfmc_mtd, partition_info64k, NUM_PARTITIONS64K); break;
++ case 0x08000000: add_mtd_partitions(tx4925ndfmc_mtd, partition_info128k, NUM_PARTITIONS128K); break;
++ default: {
++ printk ("Unsupported SmartMedia device\n");
++ err = -ENXIO;
++ goto out_buf;
++ }
++ }
++#endif /* ifdef CONFIG_MTD_CMDLINE_PARTS */
++ goto out;
++
++out_buf:
++ kfree (this->data_buf);
++out_ior:
++out:
++ return err;
++}
++
++module_init(tx4925ndfmc_init);
++
++/*
++ * Clean up routine
++ */
++#ifdef MODULE
++static void __exit tx4925ndfmc_cleanup (void)
++{
++ struct nand_chip *this = (struct nand_chip *) &tx4925ndfmc_mtd[1];
++
++ /* Unregister partitions */
++ del_mtd_partitions(tx4925ndfmc_mtd);
++
++ /* Unregister the device */
++ del_mtd_device (tx4925ndfmc_mtd);
++
++ /* Free internal data buffers */
++ kfree (this->data_buf);
++
++ /* Free the MTD device structure */
++ kfree (tx4925ndfmc_mtd);
++}
++module_exit(tx4925ndfmc_cleanup);
++#endif
++
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("Alice Hennessy <ahennessy@mvista.com>");
++MODULE_DESCRIPTION("Glue layer for SmartMediaCard on Toshiba RBTX4925");
+diff -Nurb linux-mips-2.4.27/drivers/mtd/nand/tx4938ndfmc.c linux/drivers/mtd/nand/tx4938ndfmc.c
+--- linux-mips-2.4.27/drivers/mtd/nand/tx4938ndfmc.c 1970-01-01 01:00:00.000000000 +0100
++++ linux/drivers/mtd/nand/tx4938ndfmc.c 2004-11-19 10:25:12.019181552 +0100
+@@ -0,0 +1,422 @@
++/*
++ * drivers/mtd/nand/tx4938ndfmc.c
++ *
++ * Overview:
++ * This is a device driver for the NAND flash device connected to
++ * TX4938 internal NAND Memory Controller.
++ * TX4938 NDFMC is almost same as TX4925 NDFMC, but register size are 64 bit.
++ *
++ * Author: source@mvista.com
++ *
++ * Based on spia.c by Steven J. Hill
++ *
++ * $Id: tx4938ndfmc.c,v 1.1 2003/11/04 22:59:11 ahennessy Exp $
++ *
++ * Copyright (C) 2000-2001 Toshiba Corporation
++ *
++ * 2003 (c) MontaVista Software, Inc. This file is licensed under the
++ * terms of the GNU General Public License version 2. This program is
++ * licensed "as is" without any warranty of any kind, whether express
++ * or implied.
++ */
++#include <linux/config.h>
++#include <linux/slab.h>
++#include <linux/init.h>
++#include <linux/module.h>
++#include <linux/mtd/mtd.h>
++#include <linux/mtd/nand.h>
++#include <linux/mtd/nand_ecc.h>
++#include <linux/mtd/partitions.h>
++#include <asm/io.h>
++#include <asm/bootinfo.h>
++#include <linux/delay.h>
++#include <asm/tx4938/rbtx4938.h>
++
++extern struct nand_oobinfo jffs2_oobinfo;
++
++/*
++ * MTD structure for TX4938 NDFMC
++ */
++static struct mtd_info *tx4938ndfmc_mtd;
++
++/*
++ * Define partitions for flash device
++ */
++#define flush_wb() (void)tx4938_ndfmcptr->mcr;
++
++#define NUM_PARTITIONS 3
++#define NUMBER_OF_CIS_BLOCKS 24
++#define SIZE_OF_BLOCK 0x00004000
++#define NUMBER_OF_BLOCK_PER_ZONE 1024
++#define SIZE_OF_ZONE (NUMBER_OF_BLOCK_PER_ZONE * SIZE_OF_BLOCK)
++#ifndef CONFIG_MTD_CMDLINE_PARTS
++/*
++ * You can use the following sample of MTD partitions
++ * on the NAND Flash Memory 32MB or more.
++ *
++ * The following figure shows the image of the sample partition on
++ * the 32MB NAND Flash Memory.
++ *
++ * Block No.
++ * 0 +-----------------------------+ ------
++ * | CIS | ^
++ * 24 +-----------------------------+ |
++ * | kernel image | | Zone 0
++ * | | |
++ * +-----------------------------+ |
++ * 1023 | unused area | v
++ * +-----------------------------+ ------
++ * 1024 | JFFS2 | ^
++ * | | |
++ * | | | Zone 1
++ * | | |
++ * | | |
++ * | | v
++ * 2047 +-----------------------------+ ------
++ *
++ */
++static struct mtd_partition partition_info[NUM_PARTITIONS] = {
++ {
++ .name = "RBTX4938 CIS Area",
++ .offset = 0,
++ .size = (NUMBER_OF_CIS_BLOCKS * SIZE_OF_BLOCK),
++ .mask_flags = MTD_WRITEABLE /* This partition is NOT writable */
++ },
++ {
++ .name = "RBTX4938 kernel image",
++ .offset = MTDPART_OFS_APPEND,
++ .size = 8 * 0x00100000, /* 8MB (Depends on size of kernel image) */
++ .mask_flags = MTD_WRITEABLE /* This partition is NOT writable */
++ },
++ {
++ .name = "Root FS (JFFS2)",
++ .offset = (0 + SIZE_OF_ZONE), /* start address of next zone */
++ .size = MTDPART_SIZ_FULL
++ },
++};
++#endif
++
++static void tx4938ndfmc_hwcontrol(struct mtd_info *mtd, int cmd)
++{
++ switch (cmd) {
++ case NAND_CTL_SETCLE:
++ tx4938_ndfmcptr->mcr |= TX4938_NDFMCR_CLE;
++ break;
++ case NAND_CTL_CLRCLE:
++ tx4938_ndfmcptr->mcr &= ~TX4938_NDFMCR_CLE;
++ break;
++ case NAND_CTL_SETALE:
++ tx4938_ndfmcptr->mcr |= TX4938_NDFMCR_ALE;
++ break;
++ case NAND_CTL_CLRALE:
++ tx4938_ndfmcptr->mcr &= ~TX4938_NDFMCR_ALE;
++ break;
++ /* TX4938_NDFMCR_CE bit is 0:high 1:low */
++ case NAND_CTL_SETNCE:
++ tx4938_ndfmcptr->mcr |= TX4938_NDFMCR_CE;
++ break;
++ case NAND_CTL_CLRNCE:
++ tx4938_ndfmcptr->mcr &= ~TX4938_NDFMCR_CE;
++ break;
++ case NAND_CTL_SETWP:
++ tx4938_ndfmcptr->mcr |= TX4938_NDFMCR_WE;
++ break;
++ case NAND_CTL_CLRWP:
++ tx4938_ndfmcptr->mcr &= ~TX4938_NDFMCR_WE;
++ break;
++ }
++}
++static int tx4938ndfmc_dev_ready(struct mtd_info *mtd)
++{
++ flush_wb();
++ return !(tx4938_ndfmcptr->sr & TX4938_NDFSR_BUSY);
++}
++static void tx4938ndfmc_calculate_ecc(struct mtd_info *mtd, const u_char *dat, u_char *ecc_code)
++{
++ u32 mcr = tx4938_ndfmcptr->mcr;
++ mcr &= ~TX4938_NDFMCR_ECC_ALL;
++ tx4938_ndfmcptr->mcr = mcr | TX4938_NDFMCR_ECC_OFF;
++ tx4938_ndfmcptr->mcr = mcr | TX4938_NDFMCR_ECC_READ;
++ ecc_code[1] = tx4938_ndfmcptr->dtr;
++ ecc_code[0] = tx4938_ndfmcptr->dtr;
++ ecc_code[2] = tx4938_ndfmcptr->dtr;
++ tx4938_ndfmcptr->mcr = mcr | TX4938_NDFMCR_ECC_OFF;
++}
++static void tx4938ndfmc_enable_hwecc(struct mtd_info *mtd, int mode)
++{
++ u32 mcr = tx4938_ndfmcptr->mcr;
++ mcr &= ~TX4938_NDFMCR_ECC_ALL;
++ tx4938_ndfmcptr->mcr = mcr | TX4938_NDFMCR_ECC_RESET;
++ tx4938_ndfmcptr->mcr = mcr | TX4938_NDFMCR_ECC_OFF;
++ tx4938_ndfmcptr->mcr = mcr | TX4938_NDFMCR_ECC_ON;
++}
++
++static u_char tx4938ndfmc_nand_read_byte(struct mtd_info *mtd)
++{
++ struct nand_chip *this = mtd->priv;
++ return tx4938_read_nfmc(this->IO_ADDR_R);
++}
++
++static void tx4938ndfmc_nand_write_byte(struct mtd_info *mtd, u_char byte)
++{
++ struct nand_chip *this = mtd->priv;
++ tx4938_write_nfmc(byte, this->IO_ADDR_W);
++}
++
++static void tx4938ndfmc_nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
++{
++ int i;
++ struct nand_chip *this = mtd->priv;
++
++ for (i=0; i<len; i++)
++ tx4938_write_nfmc(buf[i], this->IO_ADDR_W);
++}
++
++static void tx4938ndfmc_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
++{
++ int i;
++ struct nand_chip *this = mtd->priv;
++
++ for (i=0; i<len; i++)
++ buf[i] = tx4938_read_nfmc(this->IO_ADDR_R);
++}
++
++static int tx4938ndfmc_nand_verify_buf(struct mtd_info *mtd, const u_char *buf, int len)
++{
++ int i;
++ struct nand_chip *this = mtd->priv;
++
++ for (i=0; i<len; i++)
++ if (buf[i] != tx4938_read_nfmc(this->IO_ADDR_R))
++ return i;
++
++ return 0;
++}
++
++/*
++ * Send command to NAND device
++ */
++static void tx4938ndfmc_nand_command (struct mtd_info *mtd, unsigned command, int column, int page_addr)
++{
++ register struct nand_chip *this = mtd->priv;
++
++ /* Begin command latch cycle */
++ this->hwcontrol(mtd, NAND_CTL_SETCLE);
++ /*
++ * Write out the command to the device.
++ */
++ if (command == NAND_CMD_SEQIN) {
++ int readcmd;
++
++ if (column >= mtd->oobblock) {
++ /* OOB area */
++ column -= mtd->oobblock;
++ readcmd = NAND_CMD_READOOB;
++ } else if (column < 256) {
++ /* First 256 bytes --> READ0 */
++ readcmd = NAND_CMD_READ0;
++ } else {
++ column -= 256;
++ readcmd = NAND_CMD_READ1;
++ }
++ this->write_byte(mtd, readcmd);
++ }
++ this->write_byte(mtd, command);
++
++ /* Set ALE and clear CLE to start address cycle */
++ this->hwcontrol(mtd, NAND_CTL_CLRCLE);
++
++ if (column != -1 || page_addr != -1) {
++ this->hwcontrol(mtd, NAND_CTL_SETALE);
++
++ /* Serially input address */
++ if (column != -1)
++ this->write_byte(mtd, column);
++ if (page_addr != -1) {
++ this->write_byte(mtd, (unsigned char) (page_addr & 0xff));
++ this->write_byte(mtd, (unsigned char) ((page_addr >> 8) & 0xff));
++ /* One more address cycle for higher density devices */
++ if (mtd->size & 0x0c000000)
++ this->write_byte(mtd, (unsigned char) ((page_addr >> 16) & 0x0f));
++ }
++ /* Latch in address */
++ this->hwcontrol(mtd, NAND_CTL_CLRALE);
++ }
++
++ /*
++ * program and erase have their own busy handlers
++ * status and sequential in needs no delay
++ */
++ switch (command) {
++
++ case NAND_CMD_PAGEPROG:
++ /* Turn off WE */
++ this->hwcontrol (mtd, NAND_CTL_CLRWP);
++ return;
++
++ case NAND_CMD_SEQIN:
++ /* Turn on WE */
++ this->hwcontrol (mtd, NAND_CTL_SETWP);
++ return;
++
++ case NAND_CMD_ERASE1:
++ case NAND_CMD_ERASE2:
++ case NAND_CMD_STATUS:
++ return;
++
++ case NAND_CMD_RESET:
++ if (this->dev_ready)
++ break;
++ this->hwcontrol(mtd, NAND_CTL_SETCLE);
++ this->write_byte(mtd, NAND_CMD_STATUS);
++ this->hwcontrol(mtd, NAND_CTL_CLRCLE);
++ while ( !(this->read_byte(mtd) & 0x40));
++ return;
++
++ /* This applies to read commands */
++ default:
++ /*
++ * If we don't have access to the busy pin, we apply the given
++ * command delay
++ */
++ if (!this->dev_ready) {
++ udelay (this->chip_delay);
++ return;
++ }
++ }
++
++ /* wait until command is processed */
++ while (!this->dev_ready(mtd));
++}
++
++#ifdef CONFIG_MTD_CMDLINE_PARTS
++extern int parse_cmdline_partitions(struct mtd_info *master, struct mtd_partition **pparts, char *);
++#endif
++/*
++ * Main initialization routine
++ */
++int __init tx4938ndfmc_init (void)
++{
++ struct nand_chip *this;
++ int bsprt = 0, hold = 0xf, spw = 0xf;
++ int protected = 0;
++
++ if ((*rbtx4938_piosel_ptr & 0x0c) != 0x08) {
++ printk("TX4938 NDFMC: disabled by IOC PIOSEL\n");
++ return -ENODEV;
++ }
++ bsprt = 1;
++ hold = 2;
++ spw = 9 - 1; /* 8 GBUSCLK = 80ns (@ GBUSCLK 100MHz) */
++
++ if ((tx4938_ccfgptr->pcfg &
++ (TX4938_PCFG_ATA_SEL|TX4938_PCFG_ISA_SEL|TX4938_PCFG_NDF_SEL))
++ != TX4938_PCFG_NDF_SEL) {
++ printk("TX4938 NDFMC: disabled by PCFG.\n");
++ return -ENODEV;
++ }
++
++ /* reset NDFMC */
++ tx4938_ndfmcptr->rstr |= TX4938_NDFRSTR_RST;
++ while (tx4938_ndfmcptr->rstr & TX4938_NDFRSTR_RST)
++ ;
++ /* setup BusSeparete, Hold Time, Strobe Pulse Width */
++ tx4938_ndfmcptr->mcr = bsprt ? TX4938_NDFMCR_BSPRT : 0;
++ tx4938_ndfmcptr->spr = hold << 4 | spw;
++
++ /* Allocate memory for MTD device structure and private data */
++ tx4938ndfmc_mtd = kmalloc (sizeof(struct mtd_info) + sizeof (struct nand_chip),
++ GFP_KERNEL);
++ if (!tx4938ndfmc_mtd) {
++ printk ("Unable to allocate TX4938 NDFMC MTD device structure.\n");
++ return -ENOMEM;
++ }
++
++ /* Get pointer to private data */
++ this = (struct nand_chip *) (&tx4938ndfmc_mtd[1]);
++
++ /* Initialize structures */
++ memset((char *) tx4938ndfmc_mtd, 0, sizeof(struct mtd_info));
++ memset((char *) this, 0, sizeof(struct nand_chip));
++
++ /* Link the private data with the MTD structure */
++ tx4938ndfmc_mtd->priv = this;
++
++ /* Set address of NAND IO lines */
++ this->IO_ADDR_R = (unsigned long)&tx4938_ndfmcptr->dtr;
++ this->IO_ADDR_W = (unsigned long)&tx4938_ndfmcptr->dtr;
++ this->hwcontrol = tx4938ndfmc_hwcontrol;
++ this->dev_ready = tx4938ndfmc_dev_ready;
++ this->calculate_ecc = tx4938ndfmc_calculate_ecc;
++ this->correct_data = nand_correct_data;
++ this->enable_hwecc = tx4938ndfmc_enable_hwecc;
++ this->eccmode = NAND_ECC_HW3_256;
++ this->chip_delay = 100;
++ this->read_byte = tx4938ndfmc_nand_read_byte;
++ this->write_byte = tx4938ndfmc_nand_write_byte;
++ this->cmdfunc = tx4938ndfmc_nand_command;
++ this->write_buf = tx4938ndfmc_nand_write_buf;
++ this->read_buf = tx4938ndfmc_nand_read_buf;
++ this->verify_buf = tx4938ndfmc_nand_verify_buf;
++
++ /* Scan to find existance of the device */
++ if (nand_scan (tx4938ndfmc_mtd, 1)) {
++ kfree (tx4938ndfmc_mtd);
++ return -ENXIO;
++ }
++
++ /* Allocate memory for internal data buffer */
++ this->data_buf = kmalloc (sizeof(u_char) * (tx4938ndfmc_mtd->oobblock + tx4938ndfmc_mtd->oobsize), GFP_KERNEL);
++ if (!this->data_buf) {
++ printk ("Unable to allocate NAND data buffer for TX4938.\n");
++ kfree (tx4938ndfmc_mtd);
++ return -ENOMEM;
++ }
++
++ if (protected) {
++ printk(KERN_INFO "TX4938 NDFMC: write protected.\n");
++ tx4938ndfmc_mtd->flags &= ~(MTD_WRITEABLE | MTD_ERASEABLE);
++ }
++
++#ifdef CONFIG_MTD_CMDLINE_PARTS
++ {
++ int mtd_parts_nb = 0;
++ struct mtd_partition *mtd_parts = 0;
++ mtd_parts_nb = parse_cmdline_partitions(tx4938ndfmc_mtd, &mtd_parts, "tx4938ndfmc");
++ if (mtd_parts_nb > 0)
++ add_mtd_partitions(tx4938ndfmc_mtd, mtd_parts, mtd_parts_nb);
++ else
++ add_mtd_device(tx4938ndfmc_mtd);
++ }
++#else
++ add_mtd_partitions(tx4938ndfmc_mtd, partition_info, NUM_PARTITIONS );
++#endif
++
++ return 0;
++}
++module_init(tx4938ndfmc_init);
++
++/*
++ * Clean up routine
++ */
++static void __exit tx4938ndfmc_cleanup (void)
++{
++ struct nand_chip *this = (struct nand_chip *) tx4938ndfmc_mtd->priv;
++
++ /* Unregister the device */
++#ifdef CONFIG_MTD_CMDLINE_PARTS
++ del_mtd_partitions(tx4938ndfmc_mtd);
++#endif
++ del_mtd_device (tx4938ndfmc_mtd);
++
++ /* Free the MTD device structure */
++ kfree (tx4938ndfmc_mtd);
++
++ /* Free internal data buffer */
++ kfree (this->data_buf);
++}
++module_exit(tx4938ndfmc_cleanup);
++
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("Alice Hennessy <ahennessy@mvista.com>");
++MODULE_DESCRIPTION("Board-specific glue layer for NAND flash on TX4938 NDFMC");
+diff -Nurb linux-mips-2.4.27/drivers/mtd/nftlcore.c linux/drivers/mtd/nftlcore.c
+--- linux-mips-2.4.27/drivers/mtd/nftlcore.c 2003-02-26 01:53:49.000000000 +0100
++++ linux/drivers/mtd/nftlcore.c 2004-11-19 10:25:11.653237184 +0100
+@@ -1,7 +1,7 @@
+ /* Linux driver for NAND Flash Translation Layer */
+ /* (c) 1999 Machine Vision Holdings, Inc. */
+ /* Author: David Woodhouse <dwmw2@infradead.org> */
+-/* $Id: nftlcore.c,v 1.87 2002/09/13 14:35:33 dwmw2 Exp $ */
++/* $Id: nftlcore.c,v 1.94 2003/06/23 12:00:08 dwmw2 Exp $ */
+
+ /*
+ The contents of this file are distributed under the GNU General
+@@ -23,15 +23,13 @@
+ #include <linux/slab.h>
+ #include <linux/sched.h>
+ #include <linux/init.h>
+-#include <linux/blkpg.h>
++#include <linux/hdreg.h>
+
+-#ifdef CONFIG_KMOD
+ #include <linux/kmod.h>
+-#endif
+ #include <linux/mtd/mtd.h>
+ #include <linux/mtd/nand.h>
+ #include <linux/mtd/nftl.h>
+-#include <linux/mtd/compatmac.h>
++#include <linux/mtd/blktrans.h>
+
+ /* maximum number of loops while examining next block, to have a
+ chance to detect consistency problems (they should never happen
+@@ -39,187 +37,95 @@
+
+ #define MAX_LOOPS 10000
+
+-/* NFTL block device stuff */
+-#define MAJOR_NR NFTL_MAJOR
+-#define DEVICE_REQUEST nftl_request
+-#define DEVICE_OFF(device)
+-
+-
+-#include <linux/blk.h>
+-#include <linux/hdreg.h>
+-
+-/* Linux-specific block device functions */
+-
+-/* I _HATE_ the Linux block device setup more than anything else I've ever
+- * encountered, except ...
+- */
+-
+-static int nftl_sizes[256];
+-static int nftl_blocksizes[256];
+-
+-/* .. for the Linux partition table handling. */
+-struct hd_struct part_table[256];
+-
+-#if LINUX_VERSION_CODE < 0x20328
+-static void dummy_init (struct gendisk *crap)
+-{}
+-#endif
+-
+-static struct gendisk nftl_gendisk = {
+- major: MAJOR_NR,
+- major_name: "nftl",
+- minor_shift: NFTL_PARTN_BITS, /* Bits to shift to get real from partition */
+- max_p: (1<<NFTL_PARTN_BITS)-1, /* Number of partitions per real */
+-#if LINUX_VERSION_CODE < 0x20328
+- max_nr: MAX_NFTLS, /* maximum number of real */
+- init: dummy_init, /* init function */
+-#endif
+- part: part_table, /* hd struct */
+- sizes: nftl_sizes, /* block sizes */
+-};
+-
+-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,14)
+-#define BLK_INC_USE_COUNT MOD_INC_USE_COUNT
+-#define BLK_DEC_USE_COUNT MOD_DEC_USE_COUNT
+-#else
+-#define BLK_INC_USE_COUNT do {} while(0)
+-#define BLK_DEC_USE_COUNT do {} while(0)
+-#endif
+-
+-struct NFTLrecord *NFTLs[MAX_NFTLS];
+
+-static void NFTL_setup(struct mtd_info *mtd)
++static void nftl_add_mtd(struct mtd_blktrans_ops *tr, struct mtd_info *mtd)
+ {
+- int i;
+ struct NFTLrecord *nftl;
+ unsigned long temp;
+- int firstfree = -1;
+-
+- DEBUG(MTD_DEBUG_LEVEL1,"NFTL_setup\n");
+
+- for (i = 0; i < MAX_NFTLS; i++) {
+- if (!NFTLs[i] && firstfree == -1)
+- firstfree = i;
+- else if (NFTLs[i] && NFTLs[i]->mtd == mtd) {
+- /* This is a Spare Media Header for an NFTL we've already found */
+- DEBUG(MTD_DEBUG_LEVEL1, "MTD already mounted as NFTL\n");
++ if (mtd->ecctype != MTD_ECC_RS_DiskOnChip)
+ return;
+- }
+- }
+- if (firstfree == -1) {
+- printk(KERN_WARNING "No more NFTL slot available\n");
+- return;
+- }
++
++ DEBUG(MTD_DEBUG_LEVEL1, "NFTL: add_mtd for %s\n", mtd->name);
+
+ nftl = kmalloc(sizeof(struct NFTLrecord), GFP_KERNEL);
++
+ if (!nftl) {
+- printk(KERN_WARNING "Out of memory for NFTL data structures\n");
++ printk(KERN_WARNING "NFTL: out of memory for data structures\n");
+ return;
+ }
++ memset(nftl, 0, sizeof(*nftl));
+
+- init_MUTEX(&nftl->mutex);
+-
+- nftl->mtd = mtd;
++ nftl->mbd.mtd = mtd;
++ nftl->mbd.devnum = -1;
++ nftl->mbd.blksize = 512;
++ nftl->mbd.tr = tr;
+
+ if (NFTL_mount(nftl) < 0) {
+- printk(KERN_WARNING "Could not mount NFTL device\n");
++ printk(KERN_WARNING "NFTL: could not mount device\n");
+ kfree(nftl);
+ return;
+ }
+
+ /* OK, it's a new one. Set up all the data structures. */
+-#ifdef PSYCHO_DEBUG
+- printk("Found new NFTL nftl%c\n", firstfree + 'a');
+-#endif
+
+- /* linux stuff */
+- nftl->usecount = 0;
++ /* Calculate geometry */
+ nftl->cylinders = 1024;
+ nftl->heads = 16;
+
+ temp = nftl->cylinders * nftl->heads;
+- nftl->sectors = nftl->nr_sects / temp;
+- if (nftl->nr_sects % temp) {
++ nftl->sectors = nftl->mbd.size / temp;
++ if (nftl->mbd.size % temp) {
+ nftl->sectors++;
+ temp = nftl->cylinders * nftl->sectors;
+- nftl->heads = nftl->nr_sects / temp;
++ nftl->heads = nftl->mbd.size / temp;
+
+- if (nftl->nr_sects % temp) {
++ if (nftl->mbd.size % temp) {
+ nftl->heads++;
+ temp = nftl->heads * nftl->sectors;
+- nftl->cylinders = nftl->nr_sects / temp;
++ nftl->cylinders = nftl->mbd.size / temp;
+ }
+ }
+
+- if (nftl->nr_sects != nftl->heads * nftl->cylinders * nftl->sectors) {
+- printk(KERN_WARNING "Cannot calculate an NFTL geometry to "
+- "match size of 0x%x.\n", nftl->nr_sects);
+- printk(KERN_WARNING "Using C:%d H:%d S:%d (== 0x%lx sects)\n",
++ if (nftl->mbd.size != nftl->heads * nftl->cylinders * nftl->sectors) {
++ /*
++ Oh no we don't have
++ mbd.size == heads * cylinders * sectors
++ */
++ printk(KERN_WARNING "NFTL: cannot calculate a geometry to "
++ "match size of 0x%lx.\n", nftl->mbd.size);
++ printk(KERN_WARNING "NFTL: using C:%d H:%d S:%d "
++ "(== 0x%lx sects)\n",
+ nftl->cylinders, nftl->heads , nftl->sectors,
+- (long)nftl->cylinders * (long)nftl->heads * (long)nftl->sectors );
+-
+- /* Oh no we don't have nftl->nr_sects = nftl->heads * nftl->cylinders * nftl->sectors; */
++ (long)nftl->cylinders * (long)nftl->heads *
++ (long)nftl->sectors );
+ }
+- NFTLs[firstfree] = nftl;
+- /* Finally, set up the block device sizes */
+- nftl_sizes[firstfree * 16] = nftl->nr_sects;
+- //nftl_blocksizes[firstfree*16] = 512;
+- part_table[firstfree * 16].nr_sects = nftl->nr_sects;
+-
+- nftl_gendisk.nr_real++;
+-
+- /* partition check ... */
+-#if LINUX_VERSION_CODE < 0x20328
+- resetup_one_dev(&nftl_gendisk, firstfree);
+-#else
+- grok_partitions(&nftl_gendisk, firstfree, 1<<NFTL_PARTN_BITS, nftl->nr_sects);
+-#endif
+-}
+-
+-static void NFTL_unsetup(int i)
+-{
+- struct NFTLrecord *nftl = NFTLs[i];
+-
+- DEBUG(MTD_DEBUG_LEVEL1, "NFTL_unsetup %d\n", i);
+-
+- NFTLs[i] = NULL;
+
++ if (add_mtd_blktrans_dev(&nftl->mbd)) {
+ if (nftl->ReplUnitTable)
+ kfree(nftl->ReplUnitTable);
+ if (nftl->EUNtable)
+ kfree(nftl->EUNtable);
+-
+- nftl_gendisk.nr_real--;
+ kfree(nftl);
+-}
+-
+-/* Search the MTD device for NFTL partitions */
+-static void NFTL_notify_add(struct mtd_info *mtd)
+-{
+- DEBUG(MTD_DEBUG_LEVEL1, "NFTL_notify_add for %s\n", mtd->name);
+-
+- if (mtd) {
+- if (!mtd->read_oob) {
+- /* If this MTD doesn't have out-of-band data,
+- then there's no point continuing */
+- DEBUG(MTD_DEBUG_LEVEL1, "No OOB data, quitting\n");
+ return;
+ }
+- DEBUG(MTD_DEBUG_LEVEL3, "mtd->read = %p, size = %d, erasesize = %d\n",
+- mtd->read, mtd->size, mtd->erasesize);
+-
+- NFTL_setup(mtd);
+- }
++#ifdef PSYCHO_DEBUG
++ printk(KERN_INFO "NFTL: Found new nftl%c\n", nftl->mbd.devnum + 'a');
++#endif
+ }
+
+-static void NFTL_notify_remove(struct mtd_info *mtd)
++static void nftl_remove_dev(struct mtd_blktrans_dev *dev)
+ {
+- int i;
++ struct NFTLrecord *nftl = (void *)dev;
+
+- for (i = 0; i < MAX_NFTLS; i++) {
+- if (NFTLs[i] && NFTLs[i]->mtd == mtd)
+- NFTL_unsetup(i);
+- }
++ DEBUG(MTD_DEBUG_LEVEL1, "NFTL: remove_dev (i=%d)\n", dev->devnum);
++
++ del_mtd_blktrans_dev(dev);
++ if (nftl->ReplUnitTable)
++ kfree(nftl->ReplUnitTable);
++ if (nftl->EUNtable)
++ kfree(nftl->EUNtable);
++ kfree(nftl);
+ }
+
+ #ifdef CONFIG_NFTL_RW
+@@ -303,7 +209,7 @@
+
+ targetEUN = thisEUN;
+ for (block = 0; block < nftl->EraseSize / 512; block ++) {
+- MTD_READOOB(nftl->mtd,
++ MTD_READOOB(nftl->mbd.mtd,
+ (thisEUN * nftl->EraseSize) + (block * 512),
+ 16 , &retlen, (char *)&oob);
+ if (block == 2) {
+@@ -420,7 +326,7 @@
+ chain by selecting the longer one */
+ oob.u.c.FoldMark = oob.u.c.FoldMark1 = cpu_to_le16(FOLD_MARK_IN_PROGRESS);
+ oob.u.c.unused = 0xffffffff;
+- MTD_WRITEOOB(nftl->mtd, (nftl->EraseSize * targetEUN) + 2 * 512 + 8,
++ MTD_WRITEOOB(nftl->mbd.mtd, (nftl->EraseSize * targetEUN) + 2 * 512 + 8,
+ 8, &retlen, (char *)&oob.u);
+ }
+
+@@ -444,16 +350,16 @@
+ if (BlockMap[block] == BLOCK_NIL)
+ continue;
+
+- ret = MTD_READECC(nftl->mtd, (nftl->EraseSize * BlockMap[block]) + (block * 512),
++ ret = MTD_READECC(nftl->mbd.mtd, (nftl->EraseSize * BlockMap[block]) + (block * 512),
+ 512, &retlen, movebuf, (char *)&oob, NAND_ECC_DISKONCHIP);
+ if (ret < 0) {
+- ret = MTD_READECC(nftl->mtd, (nftl->EraseSize * BlockMap[block])
++ ret = MTD_READECC(nftl->mbd.mtd, (nftl->EraseSize * BlockMap[block])
+ + (block * 512), 512, &retlen,
+ movebuf, (char *)&oob, NAND_ECC_DISKONCHIP);
+ if (ret != -EIO)
+ printk("Error went away on retry.\n");
+ }
+- MTD_WRITEECC(nftl->mtd, (nftl->EraseSize * targetEUN) + (block * 512),
++ MTD_WRITEECC(nftl->mbd.mtd, (nftl->EraseSize * targetEUN) + (block * 512),
+ 512, &retlen, movebuf, (char *)&oob, NAND_ECC_DISKONCHIP);
+ }
+
+@@ -462,7 +368,7 @@
+ = cpu_to_le16(thisVUC);
+ oob.u.a.ReplUnitNum = oob.u.a.SpareReplUnitNum = 0xffff;
+
+- MTD_WRITEOOB(nftl->mtd, (nftl->EraseSize * targetEUN) + 8,
++ MTD_WRITEOOB(nftl->mbd.mtd, (nftl->EraseSize * targetEUN) + 8,
+ 8, &retlen, (char *)&oob.u);
+
+ /* OK. We've moved the whole lot into the new block. Now we have to free the original blocks. */
+@@ -582,7 +488,7 @@
+
+ lastEUN = writeEUN;
+
+- MTD_READOOB(nftl->mtd, (writeEUN * nftl->EraseSize) + blockofs,
++ MTD_READOOB(nftl->mbd.mtd, (writeEUN * nftl->EraseSize) + blockofs,
+ 8, &retlen, (char *)&bci);
+
+ DEBUG(MTD_DEBUG_LEVEL2, "Status of block %d in EUN %d is %x\n",
+@@ -670,12 +576,12 @@
+ nftl->ReplUnitTable[writeEUN] = BLOCK_NIL;
+
+ /* ... and on the flash itself */
+- MTD_READOOB(nftl->mtd, writeEUN * nftl->EraseSize + 8, 8,
++ MTD_READOOB(nftl->mbd.mtd, writeEUN * nftl->EraseSize + 8, 8,
+ &retlen, (char *)&oob.u);
+
+ oob.u.a.VirtUnitNum = oob.u.a.SpareVirtUnitNum = cpu_to_le16(thisVUC);
+
+- MTD_WRITEOOB(nftl->mtd, writeEUN * nftl->EraseSize + 8, 8,
++ MTD_WRITEOOB(nftl->mbd.mtd, writeEUN * nftl->EraseSize + 8, 8,
+ &retlen, (char *)&oob.u);
+
+ /* we link the new block to the chain only after the
+@@ -685,13 +591,13 @@
+ /* Both in our cache... */
+ nftl->ReplUnitTable[lastEUN] = writeEUN;
+ /* ... and on the flash itself */
+- MTD_READOOB(nftl->mtd, (lastEUN * nftl->EraseSize) + 8,
++ MTD_READOOB(nftl->mbd.mtd, (lastEUN * nftl->EraseSize) + 8,
+ 8, &retlen, (char *)&oob.u);
+
+ oob.u.a.ReplUnitNum = oob.u.a.SpareReplUnitNum
+ = cpu_to_le16(writeEUN);
+
+- MTD_WRITEOOB(nftl->mtd, (lastEUN * nftl->EraseSize) + 8,
++ MTD_WRITEOOB(nftl->mbd.mtd, (lastEUN * nftl->EraseSize) + 8,
+ 8, &retlen, (char *)&oob.u);
+ }
+
+@@ -704,8 +610,10 @@
+ return 0xffff;
+ }
+
+-static int NFTL_writeblock(struct NFTLrecord *nftl, unsigned block, char *buffer)
++static int nftl_writeblock(struct mtd_blktrans_dev *mbd, unsigned long block,
++ char *buffer)
+ {
++ struct NFTLrecord *nftl = (void *)mbd;
+ u16 writeEUN;
+ unsigned long blockofs = (block * 512) & (nftl->EraseSize - 1);
+ size_t retlen;
+@@ -720,7 +628,7 @@
+ return 1;
+ }
+
+- MTD_WRITEECC(nftl->mtd, (writeEUN * nftl->EraseSize) + blockofs,
++ MTD_WRITEECC(nftl->mbd.mtd, (writeEUN * nftl->EraseSize) + blockofs,
+ 512, &retlen, (char *)buffer, (char *)eccbuf, NAND_ECC_DISKONCHIP);
+ /* no need to write SECTOR_USED flags since they are written in mtd_writeecc */
+
+@@ -728,8 +636,10 @@
+ }
+ #endif /* CONFIG_NFTL_RW */
+
+-static int NFTL_readblock(struct NFTLrecord *nftl, unsigned block, char *buffer)
++static int nftl_readblock(struct mtd_blktrans_dev *mbd, unsigned long block,
++ char *buffer)
+ {
++ struct NFTLrecord *nftl = (void *)mbd;
+ u16 lastgoodEUN;
+ u16 thisEUN = nftl->EUNtable[block / (nftl->EraseSize / 512)];
+ unsigned long blockofs = (block * 512) & (nftl->EraseSize - 1);
+@@ -742,7 +652,7 @@
+
+ if (thisEUN != BLOCK_NIL) {
+ while (thisEUN < nftl->nb_blocks) {
+- if (MTD_READOOB(nftl->mtd, (thisEUN * nftl->EraseSize) + blockofs,
++ if (MTD_READOOB(nftl->mbd.mtd, (thisEUN * nftl->EraseSize) + blockofs,
+ 8, &retlen, (char *)&bci) < 0)
+ status = SECTOR_IGNORE;
+ else
+@@ -761,13 +671,13 @@
+ case SECTOR_IGNORE:
+ break;
+ default:
+- printk("Unknown status for block %d in EUN %d: %x\n",
++ printk("Unknown status for block %ld in EUN %d: %x\n",
+ block, thisEUN, status);
+ break;
+ }
+
+ if (!silly--) {
+- printk(KERN_WARNING "Infinite loop in Virtual Unit Chain 0x%x\n",
++ printk(KERN_WARNING "Infinite loop in Virtual Unit Chain 0x%lx\n",
+ block / (nftl->EraseSize / 512));
+ return 1;
+ }
+@@ -783,264 +693,22 @@
+ loff_t ptr = (lastgoodEUN * nftl->EraseSize) + blockofs;
+ size_t retlen;
+ u_char eccbuf[6];
+- if (MTD_READECC(nftl->mtd, ptr, 512, &retlen, buffer, eccbuf, NAND_ECC_DISKONCHIP))
++ if (MTD_READECC(nftl->mbd.mtd, ptr, 512, &retlen, buffer, eccbuf, NAND_ECC_DISKONCHIP))
+ return -EIO;
+ }
+ return 0;
+ }
+
+-static int nftl_ioctl(struct inode * inode, struct file * file, unsigned int cmd, unsigned long arg)
+-{
+- struct NFTLrecord *nftl;
+- int p;
+-
+- nftl = NFTLs[MINOR(inode->i_rdev) >> NFTL_PARTN_BITS];
+-
+- if (!nftl) return -EINVAL;
+-
+- switch (cmd) {
+- case HDIO_GETGEO: {
+- struct hd_geometry g;
+-
+- g.heads = nftl->heads;
+- g.sectors = nftl->sectors;
+- g.cylinders = nftl->cylinders;
+- g.start = part_table[MINOR(inode->i_rdev)].start_sect;
+- return copy_to_user((void *)arg, &g, sizeof g) ? -EFAULT : 0;
+- }
+- case BLKGETSIZE: /* Return device size */
+- return put_user(part_table[MINOR(inode->i_rdev)].nr_sects,
+- (unsigned long *) arg);
+-
+-#ifdef BLKGETSIZE64
+- case BLKGETSIZE64:
+- return put_user((u64)part_table[MINOR(inode->i_rdev)].nr_sects << 9,
+- (u64 *)arg);
+-#endif
+-
+- case BLKFLSBUF:
+- if (!capable(CAP_SYS_ADMIN)) return -EACCES;
+- fsync_dev(inode->i_rdev);
+- invalidate_buffers(inode->i_rdev);
+- if (nftl->mtd->sync)
+- nftl->mtd->sync(nftl->mtd);
+- return 0;
+-
+- case BLKRRPART:
+- if (!capable(CAP_SYS_ADMIN)) return -EACCES;
+- if (nftl->usecount > 1) return -EBUSY;
+- /*
+- * We have to flush all buffers and invalidate caches,
+- * or we won't be able to re-use the partitions,
+- * if there was a change and we don't want to reboot
+- */
+- p = (1<<NFTL_PARTN_BITS) - 1;
+- while (p-- > 0) {
+- kdev_t devp = MKDEV(MAJOR(inode->i_dev), MINOR(inode->i_dev)+p);
+- if (part_table[p].nr_sects > 0)
+- invalidate_device (devp, 1);
+-
+- part_table[MINOR(inode->i_dev)+p].start_sect = 0;
+- part_table[MINOR(inode->i_dev)+p].nr_sects = 0;
+- }
+-
+-#if LINUX_VERSION_CODE < 0x20328
+- resetup_one_dev(&nftl_gendisk, MINOR(inode->i_rdev) >> NFTL_PARTN_BITS);
+-#else
+- grok_partitions(&nftl_gendisk, MINOR(inode->i_rdev) >> NFTL_PARTN_BITS,
+- 1<<NFTL_PARTN_BITS, nftl->nr_sects);
+-#endif
+- return 0;
+-
+-#if (LINUX_VERSION_CODE < 0x20303)
+- RO_IOCTLS(inode->i_rdev, arg); /* ref. linux/blk.h */
+-#else
+- case BLKROSET:
+- case BLKROGET:
+- case BLKSSZGET:
+- return blk_ioctl(inode->i_rdev, cmd, arg);
+-#endif
+-
+- default:
+- return -EINVAL;
+- }
+-}
+-
+-void nftl_request(RQFUNC_ARG)
+-{
+- unsigned int dev, block, nsect;
+- struct NFTLrecord *nftl;
+- char *buffer;
+- struct request *req;
+- int res;
+-
+- while (1) {
+- INIT_REQUEST; /* blk.h */
+- req = CURRENT;
+-
+- /* We can do this because the generic code knows not to
+- touch the request at the head of the queue */
+- spin_unlock_irq(&io_request_lock);
+-
+- DEBUG(MTD_DEBUG_LEVEL2, "NFTL_request\n");
+- DEBUG(MTD_DEBUG_LEVEL3, "NFTL %s request, from sector 0x%04lx for 0x%04lx sectors\n",
+- (req->cmd == READ) ? "Read " : "Write",
+- req->sector, req->current_nr_sectors);
+-
+- dev = MINOR(req->rq_dev);
+- block = req->sector;
+- nsect = req->current_nr_sectors;
+- buffer = req->buffer;
+- res = 1; /* succeed */
+-
+- if (dev >= MAX_NFTLS * (1<<NFTL_PARTN_BITS)) {
+- /* there is no such partition */
+- printk("nftl: bad minor number: device = %s\n",
+- kdevname(req->rq_dev));
+- res = 0; /* fail */
+- goto repeat;
+- }
+-
+- nftl = NFTLs[dev / (1<<NFTL_PARTN_BITS)];
+- DEBUG(MTD_DEBUG_LEVEL3, "Waiting for mutex\n");
+- down(&nftl->mutex);
+- DEBUG(MTD_DEBUG_LEVEL3, "Got mutex\n");
+-
+- if (block + nsect > part_table[dev].nr_sects) {
+- /* access past the end of device */
+- printk("nftl%c%d: bad access: block = %d, count = %d\n",
+- (MINOR(req->rq_dev)>>6)+'a', dev & 0xf, block, nsect);
+- up(&nftl->mutex);
+- res = 0; /* fail */
+- goto repeat;
+- }
+-
+- block += part_table[dev].start_sect;
+-
+- if (req->cmd == READ) {
+- DEBUG(MTD_DEBUG_LEVEL2, "NFTL read request of 0x%x sectors @ %x "
+- "(req->nr_sectors == %lx)\n", nsect, block, req->nr_sectors);
+-
+- for ( ; nsect > 0; nsect-- , block++, buffer += 512) {
+- /* Read a single sector to req->buffer + (512 * i) */
+- if (NFTL_readblock(nftl, block, buffer)) {
+- DEBUG(MTD_DEBUG_LEVEL2, "NFTL read request failed\n");
+- up(&nftl->mutex);
+- res = 0;
+- goto repeat;
+- }
+- }
+-
+- DEBUG(MTD_DEBUG_LEVEL2,"NFTL read request completed OK\n");
+- up(&nftl->mutex);
+- goto repeat;
+- } else if (req->cmd == WRITE) {
+- DEBUG(MTD_DEBUG_LEVEL2, "NFTL write request of 0x%x sectors @ %x "
+- "(req->nr_sectors == %lx)\n", nsect, block,
+- req->nr_sectors);
+-#ifdef CONFIG_NFTL_RW
+- for ( ; nsect > 0; nsect-- , block++, buffer += 512) {
+- /* Read a single sector to req->buffer + (512 * i) */
+- if (NFTL_writeblock(nftl, block, buffer)) {
+- DEBUG(MTD_DEBUG_LEVEL1,"NFTL write request failed\n");
+- up(&nftl->mutex);
+- res = 0;
+- goto repeat;
+- }
+- }
+- DEBUG(MTD_DEBUG_LEVEL2,"NFTL write request completed OK\n");
+-#else
+- res = 0; /* Writes always fail */
+-#endif /* CONFIG_NFTL_RW */
+- up(&nftl->mutex);
+- goto repeat;
+- } else {
+- DEBUG(MTD_DEBUG_LEVEL0, "NFTL unknown request\n");
+- up(&nftl->mutex);
+- res = 0;
+- goto repeat;
+- }
+- repeat:
+- DEBUG(MTD_DEBUG_LEVEL3, "end_request(%d)\n", res);
+- spin_lock_irq(&io_request_lock);
+- end_request(res);
+- }
+-}
+-
+-static int nftl_open(struct inode *ip, struct file *fp)
+-{
+- int nftlnum = MINOR(ip->i_rdev) >> NFTL_PARTN_BITS;
+- struct NFTLrecord *thisNFTL;
+- thisNFTL = NFTLs[nftlnum];
+-
+- DEBUG(MTD_DEBUG_LEVEL2,"NFTL_open\n");
+-
+-#ifdef CONFIG_KMOD
+- if (!thisNFTL && nftlnum == 0) {
+- request_module("docprobe");
+- thisNFTL = NFTLs[nftlnum];
+- }
+-#endif
+- if (!thisNFTL) {
+- DEBUG(MTD_DEBUG_LEVEL2,"ENODEV: thisNFTL = %d, minor = %d, ip = %p, fp = %p\n",
+- nftlnum, ip->i_rdev, ip, fp);
+- return -ENODEV;
+- }
+-
+-#ifndef CONFIG_NFTL_RW
+- if (fp->f_mode & FMODE_WRITE)
+- return -EROFS;
+-#endif /* !CONFIG_NFTL_RW */
+-
+- thisNFTL->usecount++;
+- BLK_INC_USE_COUNT;
+- if (!get_mtd_device(thisNFTL->mtd, -1)) {
+- BLK_DEC_USE_COUNT;
+- return -ENXIO;
+- }
+-
+- return 0;
+-}
+-
+-static int nftl_release(struct inode *inode, struct file *fp)
++static int nftl_getgeo(struct mtd_blktrans_dev *dev, struct hd_geometry *geo)
+ {
+- struct NFTLrecord *thisNFTL;
+-
+- thisNFTL = NFTLs[MINOR(inode->i_rdev) / 16];
+-
+- DEBUG(MTD_DEBUG_LEVEL2, "NFTL_release\n");
+-
+- if (thisNFTL->mtd->sync)
+- thisNFTL->mtd->sync(thisNFTL->mtd);
+- thisNFTL->usecount--;
+- BLK_DEC_USE_COUNT;
++ struct NFTLrecord *nftl = (void *)dev;
+
+- put_mtd_device(thisNFTL->mtd);
++ geo->heads = nftl->heads;
++ geo->sectors = nftl->sectors;
++ geo->cylinders = nftl->cylinders;
+
+ return 0;
+ }
+-#if LINUX_VERSION_CODE < 0x20326
+-static struct file_operations nftl_fops = {
+- read: block_read,
+- write: block_write,
+- ioctl: nftl_ioctl,
+- open: nftl_open,
+- release: nftl_release,
+- fsync: block_fsync,
+-};
+-#else
+-static struct block_device_operations nftl_fops =
+-{
+-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,14)
+- owner: THIS_MODULE,
+-#endif
+- open: nftl_open,
+- release: nftl_release,
+- ioctl: nftl_ioctl
+-};
+-#endif
+-
+-
+
+ /****************************************************************************
+ *
+@@ -1048,49 +716,33 @@
+ *
+ ****************************************************************************/
+
+-static struct mtd_notifier nftl_notifier = {
+- add: NFTL_notify_add,
+- remove: NFTL_notify_remove
++
++struct mtd_blktrans_ops nftl_tr = {
++ .name = "nftl",
++ .major = NFTL_MAJOR,
++ .part_bits = NFTL_PARTN_BITS,
++ .getgeo = nftl_getgeo,
++ .readsect = nftl_readblock,
++#ifdef CONFIG_NFTL_RW
++ .writesect = nftl_writeblock,
++#endif
++ .add_mtd = nftl_add_mtd,
++ .remove_dev = nftl_remove_dev,
++ .owner = THIS_MODULE,
+ };
+
+ extern char nftlmountrev[];
+
+ int __init init_nftl(void)
+ {
+- int i;
+-
+-#ifdef PRERELEASE
+- printk(KERN_INFO "NFTL driver: nftlcore.c $Revision: 1.87 $, nftlmount.c %s\n", nftlmountrev);
+-#endif
+-
+- if (register_blkdev(MAJOR_NR, "nftl", &nftl_fops)){
+- printk("unable to register NFTL block device on major %d\n", MAJOR_NR);
+- return -EBUSY;
+- } else {
+- blk_init_queue(BLK_DEFAULT_QUEUE(MAJOR_NR), &nftl_request);
++ printk(KERN_INFO "NFTL driver: nftlcore.c $Revision: 1.94 $, nftlmount.c %s\n", nftlmountrev);
+
+- /* set block size to 1kB each */
+- for (i = 0; i < 256; i++) {
+- nftl_blocksizes[i] = 1024;
+- }
+- blksize_size[MAJOR_NR] = nftl_blocksizes;
+-
+- add_gendisk(&nftl_gendisk);
+- }
+-
+- register_mtd_user(&nftl_notifier);
+-
+- return 0;
++ return register_mtd_blktrans(&nftl_tr);
+ }
+
+ static void __exit cleanup_nftl(void)
+ {
+- unregister_mtd_user(&nftl_notifier);
+- unregister_blkdev(MAJOR_NR, "nftl");
+-
+- blk_cleanup_queue(BLK_DEFAULT_QUEUE(MAJOR_NR));
+-
+- del_gendisk(&nftl_gendisk);
++ deregister_mtd_blktrans(&nftl_tr);
+ }
+
+ module_init(init_nftl);
+diff -Nurb linux-mips-2.4.27/drivers/mtd/nftlmount.c linux/drivers/mtd/nftlmount.c
+--- linux-mips-2.4.27/drivers/mtd/nftlmount.c 2003-07-05 05:23:38.000000000 +0200
++++ linux/drivers/mtd/nftlmount.c 2004-11-19 10:25:11.655236880 +0100
+@@ -4,7 +4,7 @@
+ * Author: Fabrice Bellard (fabrice.bellard@netgem.com)
+ * Copyright (C) 2000 Netgem S.A.
+ *
+- * $Id: nftlmount.c,v 1.31 2002/11/15 16:34:43 dwmw2 Exp $
++ * $Id: nftlmount.c,v 1.34 2003/05/21 10:54:10 dwmw2 Exp $
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+@@ -21,26 +21,17 @@
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+-#define __NO_VERSION__
+ #include <linux/kernel.h>
+-#include <linux/module.h>
+ #include <asm/errno.h>
+-#include <asm/io.h>
+-#include <asm/uaccess.h>
+-#include <linux/miscdevice.h>
+-#include <linux/pci.h>
+ #include <linux/delay.h>
+ #include <linux/slab.h>
+-#include <linux/sched.h>
+-#include <linux/init.h>
+ #include <linux/mtd/mtd.h>
+ #include <linux/mtd/nand.h>
+ #include <linux/mtd/nftl.h>
+-#include <linux/mtd/compatmac.h>
+
+ #define SECTORSIZE 512
+
+-char nftlmountrev[]="$Revision: 1.31 $";
++char nftlmountrev[]="$Revision: 1.34 $";
+
+ /* find_boot_record: Find the NFTL Media Header and its Spare copy which contains the
+ * various device information of the NFTL partition and Bad Unit Table. Update
+@@ -59,8 +50,8 @@
+
+ /* Assume logical EraseSize == physical erasesize for starting the scan.
+ We'll sort it out later if we find a MediaHeader which says otherwise */
+- nftl->EraseSize = nftl->mtd->erasesize;
+- nftl->nb_blocks = nftl->mtd->size / nftl->EraseSize;
++ nftl->EraseSize = nftl->mbd.mtd->erasesize;
++ nftl->nb_blocks = nftl->mbd.mtd->size / nftl->EraseSize;
+
+ nftl->MediaUnit = BLOCK_NIL;
+ nftl->SpareMediaUnit = BLOCK_NIL;
+@@ -71,12 +62,12 @@
+
+ /* Check for ANAND header first. Then can whinge if it's found but later
+ checks fail */
+- if ((ret = MTD_READ(nftl->mtd, block * nftl->EraseSize, SECTORSIZE, &retlen, buf))) {
++ if ((ret = MTD_READ(nftl->mbd.mtd, block * nftl->EraseSize, SECTORSIZE, &retlen, buf))) {
+ static int warncount = 5;
+
+ if (warncount) {
+ printk(KERN_WARNING "Block read at 0x%x of mtd%d failed: %d\n",
+- block * nftl->EraseSize, nftl->mtd->index, ret);
++ block * nftl->EraseSize, nftl->mbd.mtd->index, ret);
+ if (!--warncount)
+ printk(KERN_WARNING "Further failures for this block will not be printed\n");
+ }
+@@ -87,16 +78,16 @@
+ /* ANAND\0 not found. Continue */
+ #if 0
+ printk(KERN_DEBUG "ANAND header not found at 0x%x in mtd%d\n",
+- block * nftl->EraseSize, nftl->mtd->index);
++ block * nftl->EraseSize, nftl->mbd.mtd->index);
+ #endif
+ continue;
+ }
+
+ /* To be safer with BIOS, also use erase mark as discriminant */
+- if ((ret = MTD_READOOB(nftl->mtd, block * nftl->EraseSize + SECTORSIZE + 8,
+- 8, &retlen, (char *)&h1)) < 0) {
++ if ((ret = MTD_READOOB(nftl->mbd.mtd, block * nftl->EraseSize + SECTORSIZE + 8,
++ 8, &retlen, (char *)&h1) < 0)) {
+ printk(KERN_WARNING "ANAND header found at 0x%x in mtd%d, but OOB data read failed (err %d)\n",
+- block * nftl->EraseSize, nftl->mtd->index, ret);
++ block * nftl->EraseSize, nftl->mbd.mtd->index, ret);
+ continue;
+ }
+
+@@ -106,23 +97,23 @@
+ */
+ if (le16_to_cpu(h1.EraseMark | h1.EraseMark1) != ERASE_MARK) {
+ printk(KERN_NOTICE "ANAND header found at 0x%x in mtd%d, but erase mark not present (0x%04x,0x%04x instead)\n",
+- block * nftl->EraseSize, nftl->mtd->index,
++ block * nftl->EraseSize, nftl->mbd.mtd->index,
+ le16_to_cpu(h1.EraseMark), le16_to_cpu(h1.EraseMark1));
+ continue;
+ }
+
+ /* Finally reread to check ECC */
+- if ((ret = MTD_READECC(nftl->mtd, block * nftl->EraseSize, SECTORSIZE,
+- &retlen, buf, (char *)&oob, NAND_ECC_DISKONCHIP)) < 0) {
++ if ((ret = MTD_READECC(nftl->mbd.mtd, block * nftl->EraseSize, SECTORSIZE,
++ &retlen, buf, (char *)&oob, NAND_ECC_DISKONCHIP) < 0)) {
+ printk(KERN_NOTICE "ANAND header found at 0x%x in mtd%d, but ECC read failed (err %d)\n",
+- block * nftl->EraseSize, nftl->mtd->index, ret);
++ block * nftl->EraseSize, nftl->mbd.mtd->index, ret);
+ continue;
+ }
+
+ /* Paranoia. Check the ANAND header is still there after the ECC read */
+ if (memcmp(buf, "ANAND", 6)) {
+ printk(KERN_NOTICE "ANAND header found at 0x%x in mtd%d, but went away on reread!\n",
+- block * nftl->EraseSize, nftl->mtd->index);
++ block * nftl->EraseSize, nftl->mbd.mtd->index);
+ printk(KERN_NOTICE "New data are: %02x %02x %02x %02x %02x %02x\n",
+ buf[0], buf[1], buf[2], buf[3], buf[4], buf[5]);
+ continue;
+@@ -137,8 +128,12 @@
+ printk(KERN_NOTICE "NFTL Media Headers at 0x%x and 0x%x disagree.\n",
+ nftl->MediaUnit * nftl->EraseSize, block * nftl->EraseSize);
+ /* if (debug) Print both side by side */
++ if (boot_record_count < 2) {
++ /* We haven't yet seen two real ones */
+ return -1;
+ }
++ continue;
++ }
+ if (boot_record_count == 1)
+ nftl->SpareMediaUnit = block;
+
+@@ -163,8 +158,8 @@
+ } else if (mh->UnitSizeFactor != 0xff) {
+ printk(KERN_NOTICE "WARNING: Support for NFTL with UnitSizeFactor 0x%02x is experimental\n",
+ mh->UnitSizeFactor);
+- nftl->EraseSize = nftl->mtd->erasesize << (0xff - mh->UnitSizeFactor);
+- nftl->nb_blocks = nftl->mtd->size / nftl->EraseSize;
++ nftl->EraseSize = nftl->mbd.mtd->erasesize << (0xff - mh->UnitSizeFactor);
++ nftl->nb_blocks = nftl->mbd.mtd->size / nftl->EraseSize;
+ }
+ nftl->nb_boot_blocks = le16_to_cpu(mh->FirstPhysicalEUN);
+ if ((nftl->nb_boot_blocks + 2) >= nftl->nb_blocks) {
+@@ -182,7 +177,7 @@
+ return -1;
+ }
+
+- nftl->nr_sects = nftl->numvunits * (nftl->EraseSize / SECTORSIZE);
++ nftl->mbd.size = nftl->numvunits * (nftl->EraseSize / SECTORSIZE);
+
+ /* If we're not using the last sectors in the device for some reason,
+ reduce nb_blocks accordingly so we forget they're there */
+@@ -220,7 +215,7 @@
+ for (i = 0; i < nftl->nb_blocks; i++) {
+ if ((i & (SECTORSIZE - 1)) == 0) {
+ /* read one sector for every SECTORSIZE of blocks */
+- if ((ret = MTD_READECC(nftl->mtd, block * nftl->EraseSize +
++ if ((ret = MTD_READECC(nftl->mbd.mtd, block * nftl->EraseSize +
+ i + SECTORSIZE, SECTORSIZE, &retlen, buf,
+ (char *)&oob, NAND_ECC_DISKONCHIP)) < 0) {
+ printk(KERN_NOTICE "Read of bad sector table failed (err %d)\n",
+@@ -263,16 +258,16 @@
+ for (i = 0; i < len; i += SECTORSIZE) {
+ /* we want to read the sector without ECC check here since a free
+ sector does not have ECC syndrome on it yet */
+- if (MTD_READ(nftl->mtd, address, SECTORSIZE, &retlen, buf) < 0)
++ if (MTD_READ(nftl->mbd.mtd, address, SECTORSIZE, &retlen, buf) < 0)
+ return -1;
+ if (memcmpb(buf, 0xff, SECTORSIZE) != 0)
+ return -1;
+
+ if (check_oob) {
+- if (MTD_READOOB(nftl->mtd, address, nftl->mtd->oobsize,
++ if (MTD_READOOB(nftl->mbd.mtd, address, nftl->mbd.mtd->oobsize,
+ &retlen, buf) < 0)
+ return -1;
+- if (memcmpb(buf, 0xff, nftl->mtd->oobsize) != 0)
++ if (memcmpb(buf, 0xff, nftl->mbd.mtd->oobsize) != 0)
+ return -1;
+ }
+ address += SECTORSIZE;
+@@ -297,7 +292,7 @@
+ struct erase_info *instr = &nftl->instr;
+
+ /* Read the Unit Control Information #1 for Wear-Leveling */
+- if (MTD_READOOB(nftl->mtd, block * nftl->EraseSize + SECTORSIZE + 8,
++ if (MTD_READOOB(nftl->mbd.mtd, block * nftl->EraseSize + SECTORSIZE + 8,
+ 8, &retlen, (char *)&uci) < 0)
+ goto default_uci1;
+
+@@ -314,7 +309,7 @@
+ /* XXX: use async erase interface, XXX: test return code */
+ instr->addr = block * nftl->EraseSize;
+ instr->len = nftl->EraseSize;
+- MTD_ERASE(nftl->mtd, instr);
++ MTD_ERASE(nftl->mbd.mtd, instr);
+
+ if (instr->state == MTD_ERASE_FAILED) {
+ /* could not format, FixMe: We should update the BadUnitTable
+@@ -337,7 +332,7 @@
+ return -1;
+
+ uci.WearInfo = le32_to_cpu(nb_erases);
+- if (MTD_WRITEOOB(nftl->mtd, block * nftl->EraseSize + SECTORSIZE + 8, 8,
++ if (MTD_WRITEOOB(nftl->mbd.mtd, block * nftl->EraseSize + SECTORSIZE + 8, 8,
+ &retlen, (char *)&uci) < 0)
+ return -1;
+ return 0;
+@@ -363,7 +358,7 @@
+ block = first_block;
+ for (;;) {
+ for (i = 0; i < sectors_per_block; i++) {
+- if (MTD_READOOB(nftl->mtd, block * nftl->EraseSize + i * SECTORSIZE,
++ if (MTD_READOOB(nftl->mbd.mtd, block * nftl->EraseSize + i * SECTORSIZE,
+ 8, &retlen, (char *)&bci) < 0)
+ status = SECTOR_IGNORE;
+ else
+@@ -383,7 +378,7 @@
+ /* sector not free actually : mark it as SECTOR_IGNORE */
+ bci.Status = SECTOR_IGNORE;
+ bci.Status1 = SECTOR_IGNORE;
+- MTD_WRITEOOB(nftl->mtd,
++ MTD_WRITEOOB(nftl->mbd.mtd,
+ block * nftl->EraseSize + i * SECTORSIZE,
+ 8, &retlen, (char *)&bci);
+ }
+@@ -476,7 +471,7 @@
+ size_t retlen;
+
+ /* check erase mark. */
+- if (MTD_READOOB(nftl->mtd, block * nftl->EraseSize + SECTORSIZE + 8, 8,
++ if (MTD_READOOB(nftl->mbd.mtd, block * nftl->EraseSize + SECTORSIZE + 8, 8,
+ &retlen, (char *)&h1) < 0)
+ return -1;
+
+@@ -491,7 +486,7 @@
+ h1.EraseMark = cpu_to_le16(ERASE_MARK);
+ h1.EraseMark1 = cpu_to_le16(ERASE_MARK);
+ h1.WearInfo = cpu_to_le32(0);
+- if (MTD_WRITEOOB(nftl->mtd, block * nftl->EraseSize + SECTORSIZE + 8, 8,
++ if (MTD_WRITEOOB(nftl->mbd.mtd, block * nftl->EraseSize + SECTORSIZE + 8, 8,
+ &retlen, (char *)&h1) < 0)
+ return -1;
+ } else {
+@@ -503,7 +498,7 @@
+ SECTORSIZE, 0) != 0)
+ return -1;
+
+- if (MTD_READOOB(nftl->mtd, block * nftl->EraseSize + i,
++ if (MTD_READOOB(nftl->mbd.mtd, block * nftl->EraseSize + i,
+ 16, &retlen, buf) < 0)
+ return -1;
+ if (i == SECTORSIZE) {
+@@ -533,7 +528,7 @@
+ struct nftl_uci2 uci;
+ size_t retlen;
+
+- if (MTD_READOOB(nftl->mtd, block * nftl->EraseSize + 2 * SECTORSIZE + 8,
++ if (MTD_READOOB(nftl->mbd.mtd, block * nftl->EraseSize + 2 * SECTORSIZE + 8,
+ 8, &retlen, (char *)&uci) < 0)
+ return 0;
+
+@@ -572,9 +567,9 @@
+
+ for (;;) {
+ /* read the block header. If error, we format the chain */
+- if (MTD_READOOB(s->mtd, block * s->EraseSize + 8, 8,
++ if (MTD_READOOB(s->mbd.mtd, block * s->EraseSize + 8, 8,
+ &retlen, (char *)&h0) < 0 ||
+- MTD_READOOB(s->mtd, block * s->EraseSize + SECTORSIZE + 8, 8,
++ MTD_READOOB(s->mbd.mtd, block * s->EraseSize + SECTORSIZE + 8, 8,
+ &retlen, (char *)&h1) < 0) {
+ s->ReplUnitTable[block] = BLOCK_NIL;
+ do_format_chain = 1;
+diff -Nurb linux-mips-2.4.27/drivers/mtd/redboot.c linux/drivers/mtd/redboot.c
+--- linux-mips-2.4.27/drivers/mtd/redboot.c 2001-12-02 12:34:42.000000000 +0100
++++ linux/drivers/mtd/redboot.c 2004-11-19 10:25:11.656236728 +0100
+@@ -1,5 +1,5 @@
+ /*
+- * $Id: redboot.c,v 1.6 2001/10/25 09:16:06 dwmw2 Exp $
++ * $Id: redboot.c,v 1.12 2003/06/25 16:08:10 dwmw2 Exp $
+ *
+ * Parse RedBoot-style Flash Image System (FIS) tables and
+ * produce a Linux partition array to match.
+@@ -7,6 +7,7 @@
+
+ #include <linux/kernel.h>
+ #include <linux/slab.h>
++#include <linux/init.h>
+
+ #include <linux/mtd/mtd.h>
+ #include <linux/mtd/partitions.h>
+@@ -34,7 +35,9 @@
+ return 1;
+ }
+
+-int parse_redboot_partitions(struct mtd_info *master, struct mtd_partition **pparts)
++static int parse_redboot_partitions(struct mtd_info *master,
++ struct mtd_partition **pparts,
++ unsigned long fis_origin)
+ {
+ int nrparts = 0;
+ struct fis_image_desc *buf;
+@@ -43,7 +46,9 @@
+ int ret, i;
+ size_t retlen;
+ char *names;
++ char *nullname;
+ int namelen = 0;
++ static char nullstring[] = "unallocated";
+
+ buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
+
+@@ -90,7 +95,11 @@
+ goto out;
+ }
+ new_fl->img = &buf[i];
++ if (fis_origin) {
++ buf[i].flash_base -= fis_origin;
++ } else {
+ buf[i].flash_base &= master->size-1;
++ }
+
+ /* I'm sure the JFFS2 code has done me permanent damage.
+ * I now think the following is _normal_
+@@ -110,18 +119,24 @@
+ if (tmp_fl->img->flash_base + tmp_fl->img->size + master->erasesize < tmp_fl->next->img->flash_base)
+ nrparts++;
+ }
+- parts = kmalloc(sizeof(*parts)*nrparts + namelen, GFP_KERNEL);
++ parts = kmalloc(sizeof(*parts)*nrparts + sizeof(nullstring) + namelen, GFP_KERNEL);
+
+ if (!parts) {
+ ret = -ENOMEM;
+ goto out;
+ }
+- names = (char *)&parts[nrparts];
++
+ memset(parts, 0, sizeof(*parts)*nrparts + namelen);
++
++ /* FIXME: Include nullname only if it's used */
++ nullname = (char *)&parts[nrparts];
++ sprintf(nullname, nullstring);
++ names = nullname + sizeof(nullstring);
++
+ i=0;
+
+ if (fl->img->flash_base) {
+- parts[0].name = "unallocated space";
++ parts[0].name = nullname;
+ parts[0].size = fl->img->flash_base;
+ parts[0].offset = 0;
+ }
+@@ -133,11 +148,11 @@
+ strcpy(names, fl->img->name);
+ names += strlen(names)+1;
+
+- if(fl->next && fl->img->flash_base + fl->img->size + master->erasesize < fl->next->img->flash_base) {
++ if(fl->next && fl->img->flash_base + fl->img->size + master->erasesize <= fl->next->img->flash_base) {
+ i++;
+ parts[i].offset = parts[i-1].size + parts[i-1].offset;
+ parts[i].size = fl->next->img->flash_base - parts[i].offset;
+- parts[i].name = "unallocated space";
++ parts[i].name = nullname;
+ }
+ tmp_fl = fl;
+ fl = fl->next;
+@@ -155,7 +170,24 @@
+ return ret;
+ }
+
+-EXPORT_SYMBOL(parse_redboot_partitions);
++static struct mtd_part_parser redboot_parser = {
++ .owner = THIS_MODULE,
++ .parse_fn = parse_redboot_partitions,
++ .name = "RedBoot",
++};
++
++static int __init redboot_parser_init(void)
++{
++ return register_mtd_parser(&redboot_parser);
++}
++
++static void __exit redboot_parser_exit(void)
++{
++ deregister_mtd_parser(&redboot_parser);
++}
++
++module_init(redboot_parser_init);
++module_exit(redboot_parser_exit);
+
+ MODULE_LICENSE("GPL");
+ MODULE_AUTHOR("Red Hat, Inc. - David Woodhouse <dwmw2@cambridge.redhat.com>");
+diff -Nurb linux-mips-2.4.27/fs/Config.in linux/fs/Config.in
+--- linux-mips-2.4.27/fs/Config.in 2004-02-20 02:22:19.000000000 +0100
++++ linux/fs/Config.in 2004-11-19 10:25:12.229149632 +0100
+@@ -49,6 +49,7 @@
+ dep_tristate 'Journalling Flash File System v2 (JFFS2) support' CONFIG_JFFS2_FS $CONFIG_MTD
+ if [ "$CONFIG_JFFS2_FS" = "y" -o "$CONFIG_JFFS2_FS" = "m" ] ; then
+ int 'JFFS2 debugging verbosity (0 = quiet, 2 = noisy)' CONFIG_JFFS2_FS_DEBUG 0
++ bool 'JFFS2 support for NAND chips' CONFIG_JFFS2_FS_NAND
+ fi
+ tristate 'Compressed ROM file system support' CONFIG_CRAMFS
+ bool 'Virtual memory file system support (former shm fs)' CONFIG_TMPFS
+diff -Nurb linux-mips-2.4.27/fs/jffs2/Makefile linux/fs/jffs2/Makefile
+--- linux-mips-2.4.27/fs/jffs2/Makefile 2003-08-13 19:19:25.000000000 +0200
++++ linux/fs/jffs2/Makefile 2004-11-19 10:25:12.071173648 +0100
+@@ -1,7 +1,7 @@
+ #
+ # Makefile for the linux Journalling Flash FileSystem (JFFS) routines.
+ #
+-# $Id: Makefile,v 1.25.2.1 2002/10/11 09:04:44 dwmw2 Exp $
++# $Id: Makefile.common,v 1.1 2003/05/27 09:34:41 dwmw2 Exp $
+ #
+ # Note! Dependencies are done automagically by 'make dep', which also
+ # removes any old dependencies. DON'T put your own dependencies here
+@@ -10,16 +10,31 @@
+ # Note 2! The CFLAGS definitions are now in the main makefile...
+
+
+-COMPR_OBJS := compr.o compr_rubin.o compr_rtime.o pushpull.o \
+- compr_zlib.o
++obj-$(CONFIG_JFFS2_FS) := jffs2.o
++
++COMPR_OBJS := compr.o compr_rubin.o compr_rtime.o compr_zlib.o
+ JFFS2_OBJS := dir.o file.o ioctl.o nodelist.o malloc.o \
+- read.o nodemgmt.o readinode.o super.o write.o scan.o gc.o \
+- symlink.o build.o erase.o background.o
++ read.o nodemgmt.o readinode.o write.o scan.o gc.o \
++ symlink.o build.o erase.o background.o fs.o writev.o
+
+-O_TARGET := jffs2.o
++BELOW25 := $(shell echo $(PATCHLEVEL) | sed s/[1234]/y/)
++
++ifeq ($(BELOW25),y)
++LINUX_OBJS := super-v24.o crc32.o rbtree.o
++else
++LINUX_OBJS := super.o
++endif
+
+-obj-y := $(COMPR_OBJS) $(JFFS2_OBJS)
+-obj-m := $(O_TARGET)
++NAND_OBJS-$(CONFIG_JFFS2_FS_NAND) := wbuf.o
+
++jffs2-objs := $(COMPR_OBJS) $(JFFS2_OBJS) $(VERS_OBJS) $(NAND_OBJS-y) \
++ $(LINUX_OBJS)
++
++
++# 2.4 build compatibility
++ifeq ($(BELOW25),y)
++obj-y := $(jffs2-objs)
++O_TARGET := jffs2.o
+ include $(TOPDIR)/Rules.make
++endif
+
+diff -Nurb linux-mips-2.4.27/fs/jffs2/background.c linux/fs/jffs2/background.c
+--- linux-mips-2.4.27/fs/jffs2/background.c 2001-11-06 08:56:10.000000000 +0100
++++ linux/fs/jffs2/background.c 2004-11-19 10:25:12.072173496 +0100
+@@ -1,61 +1,36 @@
+ /*
+ * JFFS2 -- Journalling Flash File System, Version 2.
+ *
+- * Copyright (C) 2001 Red Hat, Inc.
++ * Copyright (C) 2001-2003 Red Hat, Inc.
+ *
+- * Created by David Woodhouse <dwmw2@cambridge.redhat.com>
++ * Created by David Woodhouse <dwmw2@redhat.com>
+ *
+- * The original JFFS, from which the design for JFFS2 was derived,
+- * was designed and implemented by Axis Communications AB.
++ * For licensing information, see the file 'LICENCE' in this directory.
+ *
+- * The contents of this file are subject to the Red Hat eCos Public
+- * License Version 1.1 (the "Licence"); you may not use this file
+- * except in compliance with the Licence. You may obtain a copy of
+- * the Licence at http://www.redhat.com/
+- *
+- * Software distributed under the Licence is distributed on an "AS IS"
+- * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
+- * See the Licence for the specific language governing rights and
+- * limitations under the Licence.
+- *
+- * The Original Code is JFFS2 - Journalling Flash File System, version 2
+- *
+- * Alternatively, the contents of this file may be used under the
+- * terms of the GNU General Public License version 2 (the "GPL"), in
+- * which case the provisions of the GPL are applicable instead of the
+- * above. If you wish to allow the use of your version of this file
+- * only under the terms of the GPL and not to allow others to use your
+- * version of this file under the RHEPL, indicate your decision by
+- * deleting the provisions above and replace them with the notice and
+- * other provisions required by the GPL. If you do not delete the
+- * provisions above, a recipient may use your version of this file
+- * under either the RHEPL or the GPL.
+- *
+- * $Id: background.c,v 1.16 2001/10/08 09:22:38 dwmw2 Exp $
++ * $Id: background.c,v 1.47 2003/11/26 15:30:58 dwmw2 Exp $
+ *
+ */
+
+ #define __KERNEL_SYSCALLS__
+
+ #include <linux/kernel.h>
+-#include <linux/sched.h>
+-#include <linux/unistd.h>
+ #include <linux/jffs2.h>
+ #include <linux/mtd/mtd.h>
+-#include <linux/interrupt.h>
+ #include <linux/completion.h>
++#include <linux/sched.h>
++#include <linux/unistd.h>
++#include <linux/suspend.h>
+ #include "nodelist.h"
+
+
+ static int jffs2_garbage_collect_thread(void *);
+-static int thread_should_wake(struct jffs2_sb_info *c);
+
+ void jffs2_garbage_collect_trigger(struct jffs2_sb_info *c)
+ {
+- spin_lock_bh(&c->erase_completion_lock);
+- if (c->gc_task && thread_should_wake(c))
++ spin_lock(&c->erase_completion_lock);
++ if (c->gc_task && jffs2_thread_should_wake(c))
+ send_sig(SIGHUP, c->gc_task, 1);
+- spin_unlock_bh(&c->erase_completion_lock);
++ spin_unlock(&c->erase_completion_lock);
+ }
+
+ /* This must only ever be called when no GC thread is currently running */
+@@ -86,12 +61,12 @@
+
+ void jffs2_stop_garbage_collect_thread(struct jffs2_sb_info *c)
+ {
+- spin_lock_bh(&c->erase_completion_lock);
++ spin_lock(&c->erase_completion_lock);
+ if (c->gc_task) {
+ D1(printk(KERN_DEBUG "jffs2: Killing GC task %d\n", c->gc_task->pid));
+ send_sig(SIGKILL, c->gc_task, 1);
+ }
+- spin_unlock_bh(&c->erase_completion_lock);
++ spin_unlock(&c->erase_completion_lock);
+ wait_for_completion(&c->gc_thread_exit);
+ }
+
+@@ -99,34 +74,37 @@
+ {
+ struct jffs2_sb_info *c = _c;
+
+- daemonize();
+- current->tty = NULL;
++ daemonize("jffs2_gcd_mtd%d", c->mtd->index);
++ allow_signal(SIGKILL);
++ allow_signal(SIGSTOP);
++ allow_signal(SIGCONT);
++
+ c->gc_task = current;
+ up(&c->gc_thread_start);
+
+- sprintf(current->comm, "jffs2_gcd_mtd%d", c->mtd->index);
+-
+- /* FIXME in the 2.2 backport */
+- current->nice = 10;
++ set_user_nice(current, 10);
+
+ for (;;) {
+- spin_lock_irq(&current->sigmask_lock);
+- siginitsetinv (&current->blocked, sigmask(SIGHUP) | sigmask(SIGKILL) | sigmask(SIGSTOP) | sigmask(SIGCONT));
+- recalc_sigpending(current);
+- spin_unlock_irq(&current->sigmask_lock);
++ allow_signal(SIGHUP);
+
+- if (!thread_should_wake(c)) {
++ if (!jffs2_thread_should_wake(c)) {
+ set_current_state (TASK_INTERRUPTIBLE);
+ D1(printk(KERN_DEBUG "jffs2_garbage_collect_thread sleeping...\n"));
+- /* Yes, there's a race here; we checked thread_should_wake() before
+- setting current->state to TASK_INTERRUPTIBLE. But it doesn't
++ /* Yes, there's a race here; we checked jffs2_thread_should_wake()
++ before setting current->state to TASK_INTERRUPTIBLE. But it doesn't
+ matter - We don't care if we miss a wakeup, because the GC thread
+ is only an optimisation anyway. */
+ schedule();
+ }
+
+- if (current->need_resched)
+- schedule();
++ if (current->flags & PF_FREEZE) {
++ refrigerator(0);
++ /* refrigerator() should recalc sigpending for us
++ but doesn't. No matter - allow_signal() will. */
++ continue;
++ }
++
++ cond_resched();
+
+ /* Put_super will send a SIGKILL and then wait on the sem.
+ */
+@@ -134,9 +112,7 @@
+ siginfo_t info;
+ unsigned long signr;
+
+- spin_lock_irq(&current->sigmask_lock);
+- signr = dequeue_signal(&current->blocked, &info);
+- spin_unlock_irq(&current->sigmask_lock);
++ signr = dequeue_signal_lock(current, &current->blocked, &info);
+
+ switch(signr) {
+ case SIGSTOP:
+@@ -147,9 +123,10 @@
+
+ case SIGKILL:
+ D1(printk(KERN_DEBUG "jffs2_garbage_collect_thread(): SIGKILL received.\n"));
+- spin_lock_bh(&c->erase_completion_lock);
++ die:
++ spin_lock(&c->erase_completion_lock);
+ c->gc_task = NULL;
+- spin_unlock_bh(&c->erase_completion_lock);
++ spin_unlock(&c->erase_completion_lock);
+ complete_and_exit(&c->gc_thread_exit, 0);
+
+ case SIGHUP:
+@@ -157,27 +134,15 @@
+ break;
+ default:
+ D1(printk(KERN_DEBUG "jffs2_garbage_collect_thread(): signal %ld received\n", signr));
+-
+ }
+ }
+ /* We don't want SIGHUP to interrupt us. STOP and KILL are OK though. */
+- spin_lock_irq(&current->sigmask_lock);
+- siginitsetinv (&current->blocked, sigmask(SIGKILL) | sigmask(SIGSTOP) | sigmask(SIGCONT));
+- recalc_sigpending(current);
+- spin_unlock_irq(&current->sigmask_lock);
++ disallow_signal(SIGHUP);
+
+ D1(printk(KERN_DEBUG "jffs2_garbage_collect_thread(): pass\n"));
+- jffs2_garbage_collect_pass(c);
++ if (jffs2_garbage_collect_pass(c) == -ENOSPC) {
++ printk(KERN_NOTICE "No space for garbage collection. Aborting GC thread\n");
++ goto die;
++ }
+ }
+-}
+-
+-static int thread_should_wake(struct jffs2_sb_info *c)
+-{
+- D1(printk(KERN_DEBUG "thread_should_wake(): nr_free_blocks %d, nr_erasing_blocks %d, dirty_size 0x%x\n",
+- c->nr_free_blocks, c->nr_erasing_blocks, c->dirty_size));
+- if (c->nr_free_blocks + c->nr_erasing_blocks < JFFS2_RESERVED_BLOCKS_GCTRIGGER &&
+- c->dirty_size > c->sector_size)
+- return 1;
+- else
+- return 0;
+ }
+diff -Nurb linux-mips-2.4.27/fs/jffs2/build.c linux/fs/jffs2/build.c
+--- linux-mips-2.4.27/fs/jffs2/build.c 2003-07-05 05:23:44.000000000 +0200
++++ linux/fs/jffs2/build.c 2004-11-19 10:25:12.073173344 +0100
+@@ -1,47 +1,22 @@
+ /*
+ * JFFS2 -- Journalling Flash File System, Version 2.
+ *
+- * Copyright (C) 2001 Red Hat, Inc.
++ * Copyright (C) 2001-2003 Red Hat, Inc.
+ *
+- * Created by David Woodhouse <dwmw2@cambridge.redhat.com>
++ * Created by David Woodhouse <dwmw2@redhat.com>
+ *
+- * The original JFFS, from which the design for JFFS2 was derived,
+- * was designed and implemented by Axis Communications AB.
++ * For licensing information, see the file 'LICENCE' in this directory.
+ *
+- * The contents of this file are subject to the Red Hat eCos Public
+- * License Version 1.1 (the "Licence"); you may not use this file
+- * except in compliance with the Licence. You may obtain a copy of
+- * the Licence at http://www.redhat.com/
+- *
+- * Software distributed under the Licence is distributed on an "AS IS"
+- * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
+- * See the Licence for the specific language governing rights and
+- * limitations under the Licence.
+- *
+- * The Original Code is JFFS2 - Journalling Flash File System, version 2
+- *
+- * Alternatively, the contents of this file may be used under the
+- * terms of the GNU General Public License version 2 (the "GPL"), in
+- * which case the provisions of the GPL are applicable instead of the
+- * above. If you wish to allow the use of your version of this file
+- * only under the terms of the GPL and not to allow others to use your
+- * version of this file under the RHEPL, indicate your decision by
+- * deleting the provisions above and replace them with the notice and
+- * other provisions required by the GPL. If you do not delete the
+- * provisions above, a recipient may use your version of this file
+- * under either the RHEPL or the GPL.
+- *
+- * $Id: build.c,v 1.16.2.3 2003/04/30 09:43:32 dwmw2 Exp $
++ * $Id: build.c,v 1.55 2003/10/28 17:02:44 dwmw2 Exp $
+ *
+ */
+
+ #include <linux/kernel.h>
+-#include <linux/jffs2.h>
++#include <linux/sched.h>
+ #include <linux/slab.h>
+ #include "nodelist.h"
+
+-int jffs2_build_inode_pass1(struct jffs2_sb_info *, struct jffs2_inode_cache *);
+-int jffs2_build_remove_unlinked_inode(struct jffs2_sb_info *, struct jffs2_inode_cache *);
++static void jffs2_build_remove_unlinked_inode(struct jffs2_sb_info *, struct jffs2_inode_cache *, struct jffs2_full_dirent **);
+
+ static inline struct jffs2_inode_cache *
+ first_inode_chain(int *i, struct jffs2_sb_info *c)
+@@ -68,16 +43,52 @@
+ ic; \
+ ic = next_inode(&i, ic, (c)))
+
++
++static inline void jffs2_build_inode_pass1(struct jffs2_sb_info *c, struct jffs2_inode_cache *ic)
++{
++ struct jffs2_full_dirent *fd;
++
++ D1(printk(KERN_DEBUG "jffs2_build_inode building directory inode #%u\n", ic->ino));
++
++ /* For each child, increase nlink */
++ for(fd = ic->scan_dents; fd; fd = fd->next) {
++ struct jffs2_inode_cache *child_ic;
++ if (!fd->ino)
++ continue;
++
++ /* XXX: Can get high latency here with huge directories */
++
++ child_ic = jffs2_get_ino_cache(c, fd->ino);
++ if (!child_ic) {
++ printk(KERN_NOTICE "Eep. Child \"%s\" (ino #%u) of dir ino #%u doesn't exist!\n",
++ fd->name, fd->ino, ic->ino);
++ continue;
++ }
++
++ if (child_ic->nlink++ && fd->type == DT_DIR) {
++ printk(KERN_NOTICE "Child dir \"%s\" (ino #%u) of dir ino #%u appears to be a hard link\n", fd->name, fd->ino, ic->ino);
++ if (fd->ino == 1 && ic->ino == 1) {
++ printk(KERN_NOTICE "This is mostly harmless, and probably caused by creating a JFFS2 image\n");
++ printk(KERN_NOTICE "using a buggy version of mkfs.jffs2. Use at least v1.17.\n");
++ }
++ /* What do we do about it? */
++ }
++ D1(printk(KERN_DEBUG "Increased nlink for child \"%s\" (ino #%u)\n", fd->name, fd->ino));
++ /* Can't free them. We might need them in pass 2 */
++ }
++}
++
+ /* Scan plan:
+ - Scan physical nodes. Build map of inodes/dirents. Allocate inocaches as we go
+ - Scan directory tree from top down, setting nlink in inocaches
+ - Scan inocaches for inodes with nlink==0
+ */
+-int jffs2_build_filesystem(struct jffs2_sb_info *c)
++static int jffs2_build_filesystem(struct jffs2_sb_info *c)
+ {
+ int ret;
+ int i;
+ struct jffs2_inode_cache *ic;
++ struct jffs2_full_dirent *dead_fds = NULL;
+
+ /* First, scan the medium and build all the inode caches with
+ lists of physical nodes */
+@@ -90,14 +101,17 @@
+ return ret;
+
+ D1(printk(KERN_DEBUG "Scanned flash completely\n"));
+- /* Now build the data map for each inode, marking obsoleted nodes
+- as such, and also increase nlink of any children. */
++ D1(jffs2_dump_block_lists(c));
++
++ /* Now scan the directory tree, increasing nlink according to every dirent found. */
+ for_each_inode(i, c, ic) {
+ D1(printk(KERN_DEBUG "Pass 1: ino #%u\n", ic->ino));
+- ret = jffs2_build_inode_pass1(c, ic);
+- if (ret) {
+- D1(printk(KERN_WARNING "Eep. jffs2_build_inode_pass1 for ino %d returned %d\n", ic->ino, ret));
+- return ret;
++
++ D1(BUG_ON(ic->ino > c->highest_ino));
++
++ if (ic->scan_dents) {
++ jffs2_build_inode_pass1(c, ic);
++ cond_resched();
+ }
+ }
+ D1(printk(KERN_DEBUG "Pass 1 complete\n"));
+@@ -107,181 +121,226 @@
+ children too, and repeat the scan. As that's going to be
+ a fairly uncommon occurrence, it's not so evil to do it this
+ way. Recursion bad. */
+- do {
+- D1(printk(KERN_DEBUG "Pass 2 (re)starting\n"));
+- ret = 0;
++ D1(printk(KERN_DEBUG "Pass 2 starting\n"));
++
+ for_each_inode(i, c, ic) {
+ D1(printk(KERN_DEBUG "Pass 2: ino #%u, nlink %d, ic %p, nodes %p\n", ic->ino, ic->nlink, ic, ic->nodes));
+ if (ic->nlink)
+ continue;
+
+- ret = jffs2_build_remove_unlinked_inode(c, ic);
+- if (ret)
+- break;
+- /* -EAGAIN means the inode's nlink was zero, so we deleted it,
+- and furthermore that it had children and their nlink has now
+- gone to zero too. So we have to restart the scan. */
++ jffs2_build_remove_unlinked_inode(c, ic, &dead_fds);
++ cond_resched();
++ }
++
++ D1(printk(KERN_DEBUG "Pass 2a starting\n"));
++
++ while (dead_fds) {
++ struct jffs2_inode_cache *ic;
++ struct jffs2_full_dirent *fd = dead_fds;
++
++ dead_fds = fd->next;
++
++ ic = jffs2_get_ino_cache(c, fd->ino);
++ D1(printk(KERN_DEBUG "Removing dead_fd ino #%u (\"%s\"), ic at %p\n", fd->ino, fd->name, ic));
++
++ if (ic)
++ jffs2_build_remove_unlinked_inode(c, ic, &dead_fds);
++ jffs2_free_full_dirent(fd);
+ }
+- } while(ret == -EAGAIN);
+
+ D1(printk(KERN_DEBUG "Pass 2 complete\n"));
+
+- /* Finally, we can scan again and free the dirent nodes and scan_info structs */
++ /* Finally, we can scan again and free the dirent structs */
+ for_each_inode(i, c, ic) {
+- struct jffs2_scan_info *scan = ic->scan;
+ struct jffs2_full_dirent *fd;
+ D1(printk(KERN_DEBUG "Pass 3: ino #%u, ic %p, nodes %p\n", ic->ino, ic, ic->nodes));
+- if (!scan) {
+- if (ic->nlink) {
+- D1(printk(KERN_WARNING "Why no scan struct for ino #%u which has nlink %d?\n", ic->ino, ic->nlink));
+- }
+- continue;
+- }
+- ic->scan = NULL;
+- while(scan->dents) {
+- fd = scan->dents;
+- scan->dents = fd->next;
++
++ while(ic->scan_dents) {
++ fd = ic->scan_dents;
++ ic->scan_dents = fd->next;
+ jffs2_free_full_dirent(fd);
+ }
+- kfree(scan);
++ ic->scan_dents = NULL;
++ cond_resched();
+ }
+ D1(printk(KERN_DEBUG "Pass 3 complete\n"));
++ D1(jffs2_dump_block_lists(c));
++
++ /* Rotate the lists by some number to ensure wear levelling */
++ jffs2_rotate_lists(c);
+
+ return ret;
+ }
+
+-int jffs2_build_inode_pass1(struct jffs2_sb_info *c, struct jffs2_inode_cache *ic)
++static void jffs2_build_remove_unlinked_inode(struct jffs2_sb_info *c, struct jffs2_inode_cache *ic, struct jffs2_full_dirent **dead_fds)
+ {
+- struct jffs2_tmp_dnode_info *tn;
++ struct jffs2_raw_node_ref *raw;
+ struct jffs2_full_dirent *fd;
+- struct jffs2_node_frag *fraglist = NULL;
+- struct jffs2_tmp_dnode_info *metadata = NULL;
+-
+- D1(printk(KERN_DEBUG "jffs2_build_inode building inode #%u\n", ic->ino));
+- if (ic->ino > c->highest_ino)
+- c->highest_ino = ic->ino;
+
+- if (!ic->scan->tmpnodes && ic->ino != 1) {
+- D1(printk(KERN_DEBUG "jffs2_build_inode: ino #%u has no data nodes!\n", ic->ino));
+- }
+- /* Build the list to make sure any obsolete nodes are marked as such */
+- while(ic->scan->tmpnodes) {
+- tn = ic->scan->tmpnodes;
+- ic->scan->tmpnodes = tn->next;
+-
+- if (metadata && tn->version > metadata->version) {
+- D1(printk(KERN_DEBUG "jffs2_build_inode_pass1 ignoring old metadata at 0x%08x\n",
+- metadata->fn->raw->flash_offset &~3));
++ D1(printk(KERN_DEBUG "JFFS2: Removing ino #%u with nlink == zero.\n", ic->ino));
+
+- jffs2_free_full_dnode(metadata->fn);
+- jffs2_free_tmp_dnode_info(metadata);
+- metadata = NULL;
++ for (raw = ic->nodes; raw != (void *)ic; raw = raw->next_in_ino) {
++ D1(printk(KERN_DEBUG "obsoleting node at 0x%08x\n", ref_offset(raw)));
++ jffs2_mark_node_obsolete(c, raw);
+ }
+
+- if (tn->fn->size) {
+- jffs2_add_full_dnode_to_fraglist (c, &fraglist, tn->fn);
+- jffs2_free_tmp_dnode_info(tn);
+- } else {
+- if (!metadata) {
+- metadata = tn;
+- } else {
+- D1(printk(KERN_DEBUG "jffs2_build_inode_pass1 ignoring new metadata at 0x%08x\n",
+- tn->fn->raw->flash_offset &~3));
+-
+- jffs2_free_full_dnode(tn->fn);
+- jffs2_free_tmp_dnode_info(tn);
+- }
+- }
+- }
++ if (ic->scan_dents) {
++ int whinged = 0;
++ D1(printk(KERN_DEBUG "Inode #%u was a directory which may have children...\n", ic->ino));
+
+- /* OK. Now clear up */
+- if (metadata) {
+- jffs2_free_full_dnode(metadata->fn);
+- jffs2_free_tmp_dnode_info(metadata);
+- }
+- metadata = NULL;
++ while(ic->scan_dents) {
++ struct jffs2_inode_cache *child_ic;
+
+- while (fraglist) {
+- struct jffs2_node_frag *frag;
+- frag = fraglist;
+- fraglist = fraglist->next;
++ fd = ic->scan_dents;
++ ic->scan_dents = fd->next;
+
+- if (frag->node && !(--frag->node->frags)) {
+- jffs2_free_full_dnode(frag->node);
++ if (!fd->ino) {
++ /* It's a deletion dirent. Ignore it */
++ D1(printk(KERN_DEBUG "Child \"%s\" is a deletion dirent, skipping...\n", fd->name));
++ jffs2_free_full_dirent(fd);
++ continue;
+ }
+- jffs2_free_node_frag(frag);
++ if (!whinged) {
++ whinged = 1;
++ printk(KERN_NOTICE "Inode #%u was a directory with children - removing those too...\n", ic->ino);
+ }
+
+- /* Now for each child, increase nlink */
+- for(fd=ic->scan->dents; fd; fd = fd->next) {
+- struct jffs2_inode_cache *child_ic;
+- if (!fd->ino)
+- continue;
++ D1(printk(KERN_DEBUG "Removing child \"%s\", ino #%u\n",
++ fd->name, fd->ino));
+
+ child_ic = jffs2_get_ino_cache(c, fd->ino);
+ if (!child_ic) {
+- printk(KERN_NOTICE "Eep. Child \"%s\" (ino #%u) of dir ino #%u doesn't exist!\n",
+- fd->name, fd->ino, ic->ino);
++ printk(KERN_NOTICE "Cannot remove child \"%s\", ino #%u, because it doesn't exist\n", fd->name, fd->ino);
++ jffs2_free_full_dirent(fd);
+ continue;
+ }
+
+- if (child_ic->nlink++ && fd->type == DT_DIR) {
+- printk(KERN_NOTICE "Child dir \"%s\" (ino #%u) of dir ino #%u appears to be a hard link\n", fd->name, fd->ino, ic->ino);
+- if (fd->ino == 1 && ic->ino == 1) {
+- printk(KERN_NOTICE "This is mostly harmless, and probably caused by creating a JFFS2 image\n");
+- printk(KERN_NOTICE "using a buggy version of mkfs.jffs2. Use at least v1.17.\n");
++ /* Reduce nlink of the child. If it's now zero, stick it on the
++ dead_fds list to be cleaned up later. Else just free the fd */
++
++ child_ic->nlink--;
++
++ if (!child_ic->nlink) {
++ D1(printk(KERN_DEBUG "Inode #%u (\"%s\") has now got zero nlink. Adding to dead_fds list.\n",
++ fd->ino, fd->name));
++ fd->next = *dead_fds;
++ *dead_fds = fd;
++ } else {
++ D1(printk(KERN_DEBUG "Inode #%u (\"%s\") has now got nlink %d. Ignoring.\n",
++ fd->ino, fd->name, child_ic->nlink));
++ jffs2_free_full_dirent(fd);
+ }
+- /* What do we do about it? */
+ }
+- D1(printk(KERN_DEBUG "Increased nlink for child \"%s\" (ino #%u)\n", fd->name, fd->ino));
+- /* Can't free them. We might need them in pass 2 */
+ }
+- return 0;
++
++ /*
++ We don't delete the inocache from the hash list and free it yet.
++ The erase code will do that, when all the nodes are completely gone.
++ */
+ }
+
+-int jffs2_build_remove_unlinked_inode(struct jffs2_sb_info *c, struct jffs2_inode_cache *ic)
++static void jffs2_calc_trigger_levels(struct jffs2_sb_info *c)
+ {
+- struct jffs2_raw_node_ref *raw;
+- struct jffs2_full_dirent *fd;
+- int ret = 0;
++ uint32_t size;
+
+- if(!ic->scan) {
+- D1(printk(KERN_DEBUG "ino #%u was already removed\n", ic->ino));
+- return 0;
+- }
++ /* Deletion should almost _always_ be allowed. We're fairly
++ buggered once we stop allowing people to delete stuff
++ because there's not enough free space... */
++ c->resv_blocks_deletion = 2;
++
++ /* Be conservative about how much space we need before we allow writes.
++ On top of that which is required for deletia, require an extra 2%
++ of the medium to be available, for overhead caused by nodes being
++ split across blocks, etc. */
++
++ size = c->flash_size / 50; /* 2% of flash size */
++ size += c->nr_blocks * 100; /* And 100 bytes per eraseblock */
++ size += c->sector_size - 1; /* ... and round up */
++
++ c->resv_blocks_write = c->resv_blocks_deletion + (size / c->sector_size);
++
++ /* When do we let the GC thread run in the background */
++
++ c->resv_blocks_gctrigger = c->resv_blocks_write + 1;
++
++ /* When do we allow garbage collection to merge nodes to make
++ long-term progress at the expense of short-term space exhaustion? */
++ c->resv_blocks_gcmerge = c->resv_blocks_deletion + 1;
++
++ /* When do we allow garbage collection to eat from bad blocks rather
++ than actually making progress? */
++ c->resv_blocks_gcbad = 0;//c->resv_blocks_deletion + 2;
++
++ /* If there's less than this amount of dirty space, don't bother
++ trying to GC to make more space. It'll be a fruitless task */
++ c->nospc_dirty_size = c->sector_size + (c->flash_size / 100);
++
++ D1(printk(KERN_DEBUG "JFFS2 trigger levels (size %d KiB, block size %d KiB, %d blocks)\n",
++ c->flash_size / 1024, c->sector_size / 1024, c->nr_blocks));
++ D1(printk(KERN_DEBUG "Blocks required to allow deletion: %d (%d KiB)\n",
++ c->resv_blocks_deletion, c->resv_blocks_deletion*c->sector_size/1024));
++ D1(printk(KERN_DEBUG "Blocks required to allow writes: %d (%d KiB)\n",
++ c->resv_blocks_write, c->resv_blocks_write*c->sector_size/1024));
++ D1(printk(KERN_DEBUG "Blocks required to quiesce GC thread: %d (%d KiB)\n",
++ c->resv_blocks_gctrigger, c->resv_blocks_gctrigger*c->sector_size/1024));
++ D1(printk(KERN_DEBUG "Blocks required to allow GC merges: %d (%d KiB)\n",
++ c->resv_blocks_gcmerge, c->resv_blocks_gcmerge*c->sector_size/1024));
++ D1(printk(KERN_DEBUG "Blocks required to GC bad blocks: %d (%d KiB)\n",
++ c->resv_blocks_gcbad, c->resv_blocks_gcbad*c->sector_size/1024));
++ D1(printk(KERN_DEBUG "Amount of dirty space required to GC: %d bytes\n",
++ c->nospc_dirty_size));
++}
+
+- D1(printk(KERN_DEBUG "JFFS2: Removing ino #%u with nlink == zero.\n", ic->ino));
++int jffs2_do_mount_fs(struct jffs2_sb_info *c)
++{
++ int i;
+
+- for (raw = ic->nodes; raw != (void *)ic; raw = raw->next_in_ino) {
+- D1(printk(KERN_DEBUG "obsoleting node at 0x%08x\n", raw->flash_offset&~3));
+- jffs2_mark_node_obsolete(c, raw);
++ c->free_size = c->flash_size;
++ c->nr_blocks = c->flash_size / c->sector_size;
++ c->blocks = kmalloc(sizeof(struct jffs2_eraseblock) * c->nr_blocks, GFP_KERNEL);
++ if (!c->blocks)
++ return -ENOMEM;
++ for (i=0; i<c->nr_blocks; i++) {
++ INIT_LIST_HEAD(&c->blocks[i].list);
++ c->blocks[i].offset = i * c->sector_size;
++ c->blocks[i].free_size = c->sector_size;
++ c->blocks[i].dirty_size = 0;
++ c->blocks[i].wasted_size = 0;
++ c->blocks[i].unchecked_size = 0;
++ c->blocks[i].used_size = 0;
++ c->blocks[i].first_node = NULL;
++ c->blocks[i].last_node = NULL;
++ }
++
++ init_MUTEX(&c->alloc_sem);
++ init_MUTEX(&c->erase_free_sem);
++ init_waitqueue_head(&c->erase_wait);
++ init_waitqueue_head(&c->inocache_wq);
++ spin_lock_init(&c->erase_completion_lock);
++ spin_lock_init(&c->inocache_lock);
++
++ INIT_LIST_HEAD(&c->clean_list);
++ INIT_LIST_HEAD(&c->very_dirty_list);
++ INIT_LIST_HEAD(&c->dirty_list);
++ INIT_LIST_HEAD(&c->erasable_list);
++ INIT_LIST_HEAD(&c->erasing_list);
++ INIT_LIST_HEAD(&c->erase_pending_list);
++ INIT_LIST_HEAD(&c->erasable_pending_wbuf_list);
++ INIT_LIST_HEAD(&c->erase_complete_list);
++ INIT_LIST_HEAD(&c->free_list);
++ INIT_LIST_HEAD(&c->bad_list);
++ INIT_LIST_HEAD(&c->bad_used_list);
++ c->highest_ino = 1;
++
++ if (jffs2_build_filesystem(c)) {
++ D1(printk(KERN_DEBUG "build_fs failed\n"));
++ jffs2_free_ino_caches(c);
++ jffs2_free_raw_node_refs(c);
++ kfree(c->blocks);
++ return -EIO;
+ }
+
+- if (ic->scan->dents) {
+- printk(KERN_NOTICE "Inode #%u was a directory with children - removing those too...\n", ic->ino);
+-
+- while(ic->scan->dents) {
+- struct jffs2_inode_cache *child_ic;
++ jffs2_calc_trigger_levels(c);
+
+- fd = ic->scan->dents;
+- ic->scan->dents = fd->next;
+-
+- D1(printk(KERN_DEBUG "Removing child \"%s\", ino #%u\n",
+- fd->name, fd->ino));
+-
+- child_ic = jffs2_get_ino_cache(c, fd->ino);
+- if (!child_ic) {
+- printk(KERN_NOTICE "Cannot remove child \"%s\", ino #%u, because it doesn't exist\n", fd->name, fd->ino);
+- continue;
+- }
+- jffs2_free_full_dirent(fd);
+- child_ic->nlink--;
+- }
+- ret = -EAGAIN;
+- }
+- kfree(ic->scan);
+- ic->scan = NULL;
+- // jffs2_del_ino_cache(c, ic);
+- // jffs2_free_inode_cache(ic);
+- return ret;
++ return 0;
+ }
+diff -Nurb linux-mips-2.4.27/fs/jffs2/compr.c linux/fs/jffs2/compr.c
+--- linux-mips-2.4.27/fs/jffs2/compr.c 2001-11-05 21:16:18.000000000 +0100
++++ linux/fs/jffs2/compr.c 2004-11-19 10:25:12.085171520 +0100
+@@ -1,59 +1,37 @@
+ /*
+ * JFFS2 -- Journalling Flash File System, Version 2.
+ *
+- * Copyright (C) 2001 Red Hat, Inc.
++ * Copyright (C) 2001-2003 Red Hat, Inc.
+ *
+ * Created by Arjan van de Ven <arjanv@redhat.com>
+ *
+- * The original JFFS, from which the design for JFFS2 was derived,
+- * was designed and implemented by Axis Communications AB.
++ * For licensing information, see the file 'LICENCE' in this directory.
+ *
+- * The contents of this file are subject to the Red Hat eCos Public
+- * License Version 1.1 (the "Licence"); you may not use this file
+- * except in compliance with the Licence. You may obtain a copy of
+- * the Licence at http://www.redhat.com/
+- *
+- * Software distributed under the Licence is distributed on an "AS IS"
+- * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
+- * See the Licence for the specific language governing rights and
+- * limitations under the Licence.
+- *
+- * The Original Code is JFFS2 - Journalling Flash File System, version 2
+- *
+- * Alternatively, the contents of this file may be used under the
+- * terms of the GNU General Public License version 2 (the "GPL"), in
+- * which case the provisions of the GPL are applicable instead of the
+- * above. If you wish to allow the use of your version of this file
+- * only under the terms of the GPL and not to allow others to use your
+- * version of this file under the RHEPL, indicate your decision by
+- * deleting the provisions above and replace them with the notice and
+- * other provisions required by the GPL. If you do not delete the
+- * provisions above, a recipient may use your version of this file
+- * under either the RHEPL or the GPL.
+- *
+- * $Id: compr.c,v 1.17 2001/09/23 09:56:46 dwmw2 Exp $
++ * $Id: compr.c,v 1.33 2003/11/28 17:22:54 dwmw2 Exp $
+ *
+ */
+
+ #include <linux/kernel.h>
+ #include <linux/string.h>
+-#include <linux/types.h>
+ #include <linux/errno.h>
++#include <linux/types.h>
++#include <linux/slab.h>
+ #include <linux/jffs2.h>
++#include "nodelist.h"
+
+-int zlib_compress(unsigned char *data_in, unsigned char *cpage_out, __u32 *sourcelen, __u32 *dstlen);
+-void zlib_decompress(unsigned char *data_in, unsigned char *cpage_out, __u32 srclen, __u32 destlen);
+-int rtime_compress(unsigned char *data_in, unsigned char *cpage_out, __u32 *sourcelen, __u32 *dstlen);
+-void rtime_decompress(unsigned char *data_in, unsigned char *cpage_out, __u32 srclen, __u32 destlen);
+-int rubinmips_compress(unsigned char *data_in, unsigned char *cpage_out, __u32 *sourcelen, __u32 *dstlen);
+-void rubinmips_decompress(unsigned char *data_in, unsigned char *cpage_out, __u32 srclen, __u32 destlen);
+-int dynrubin_compress(unsigned char *data_in, unsigned char *cpage_out, __u32 *sourcelen, __u32 *dstlen);
+-void dynrubin_decompress(unsigned char *data_in, unsigned char *cpage_out, __u32 srclen, __u32 destlen);
++int jffs2_zlib_compress(unsigned char *data_in, unsigned char *cpage_out, uint32_t *sourcelen, uint32_t *dstlen);
++void jffs2_zlib_decompress(unsigned char *data_in, unsigned char *cpage_out, uint32_t srclen, uint32_t destlen);
++int jffs2_rtime_compress(unsigned char *data_in, unsigned char *cpage_out, uint32_t *sourcelen, uint32_t *dstlen);
++void jffs2_rtime_decompress(unsigned char *data_in, unsigned char *cpage_out, uint32_t srclen, uint32_t destlen);
++int jffs2_rubinmips_compress(unsigned char *data_in, unsigned char *cpage_out, uint32_t *sourcelen, uint32_t *dstlen);
++void jffs2_rubinmips_decompress(unsigned char *data_in, unsigned char *cpage_out, uint32_t srclen, uint32_t destlen);
++int jffs2_dynrubin_compress(unsigned char *data_in, unsigned char *cpage_out, uint32_t *sourcelen, uint32_t *dstlen);
++void jffs2_dynrubin_decompress(unsigned char *data_in, unsigned char *cpage_out, uint32_t srclen, uint32_t destlen);
+
+
+ /* jffs2_compress:
+ * @data: Pointer to uncompressed data
+- * @cdata: Pointer to buffer for compressed data
++ * @cdata: Pointer to returned pointer to buffer for compressed data
+ * @datalen: On entry, holds the amount of data available for compression.
+ * On exit, expected to hold the amount of data actually compressed.
+ * @cdatalen: On entry, holds the amount of space available for compressed
+@@ -68,47 +46,59 @@
+ * jffs2_compress should compress as much as will fit, and should set
+ * *datalen accordingly to show the amount of data which were compressed.
+ */
+-unsigned char jffs2_compress(unsigned char *data_in, unsigned char *cpage_out,
+- __u32 *datalen, __u32 *cdatalen)
++unsigned char jffs2_compress(unsigned char *data_in, unsigned char **cpage_out,
++ uint32_t *datalen, uint32_t *cdatalen)
+ {
++#ifdef JFFS2_COMPRESSION
+ int ret;
+
+- ret = zlib_compress(data_in, cpage_out, datalen, cdatalen);
++ *cpage_out = kmalloc(*cdatalen, GFP_KERNEL);
++ if (!*cpage_out) {
++ printk(KERN_WARNING "No memory for compressor allocation. Compression failed\n");
++ goto out;
++ }
++
++#ifdef JFFS2_USE_ZLIB
++ ret = jffs2_zlib_compress(data_in, *cpage_out, datalen, cdatalen);
+ if (!ret) {
+ return JFFS2_COMPR_ZLIB;
+ }
+-#if 0 /* Disabled 23/9/1. With zlib it hardly ever gets a look in */
+- ret = dynrubin_compress(data_in, cpage_out, datalen, cdatalen);
++#endif
++#ifdef JFFS2_USE_DYNRUBIN
++ ret = jffs2_dynrubin_compress(data_in, *cpage_out, datalen, cdatalen);
+ if (!ret) {
+ return JFFS2_COMPR_DYNRUBIN;
+ }
+ #endif
+-#if 0 /* Disabled 26/2/1. Obsoleted by dynrubin */
+- ret = rubinmips_compress(data_in, cpage_out, datalen, cdatalen);
++#ifdef JFFS2_USE_RUBINMIPS
++ ret = jffs2_rubinmips_compress(data_in, *cpage_out, datalen, cdatalen);
+ if (!ret) {
+ return JFFS2_COMPR_RUBINMIPS;
+ }
+ #endif
++#ifdef JFFS2_USE_RTIME
+ /* rtime does manage to recompress already-compressed data */
+- ret = rtime_compress(data_in, cpage_out, datalen, cdatalen);
++ ret = jffs2_rtime_compress(data_in, *cpage_out, datalen, cdatalen);
+ if (!ret) {
+ return JFFS2_COMPR_RTIME;
+ }
+-#if 0
+- /* We don't need to copy. Let the caller special-case the COMPR_NONE case. */
+- /* If we get here, no compression is going to work */
+- /* But we might want to use the fragmentation part -- Arjan */
+- memcpy(cpage_out,data_in,min(*datalen,*cdatalen));
+- if (*datalen > *cdatalen)
+- *datalen = *cdatalen;
+ #endif
++ kfree(*cpage_out);
++#endif /* Compression */
++ out:
++ *cpage_out = data_in;
++ *datalen = *cdatalen;
+ return JFFS2_COMPR_NONE; /* We failed to compress */
+-
+ }
+
++void jffs2_free_comprbuf(unsigned char *comprbuf, unsigned char *orig)
++{
++ if (orig != comprbuf)
++ kfree(comprbuf);
++}
+
+ int jffs2_decompress(unsigned char comprtype, unsigned char *cdata_in,
+- unsigned char *data_out, __u32 cdatalen, __u32 datalen)
++ unsigned char *data_out, uint32_t cdatalen, uint32_t datalen)
+ {
+ switch (comprtype) {
+ case JFFS2_COMPR_NONE:
+@@ -119,30 +109,27 @@
+ case JFFS2_COMPR_ZERO:
+ memset(data_out, 0, datalen);
+ break;
+-
++#ifdef JFFS2_USE_ZLIB
+ case JFFS2_COMPR_ZLIB:
+- zlib_decompress(cdata_in, data_out, cdatalen, datalen);
++ jffs2_zlib_decompress(cdata_in, data_out, cdatalen, datalen);
+ break;
+-
++#endif
++#ifdef JFFS2_USE_RTIME
+ case JFFS2_COMPR_RTIME:
+- rtime_decompress(cdata_in, data_out, cdatalen, datalen);
++ jffs2_rtime_decompress(cdata_in, data_out, cdatalen, datalen);
+ break;
+-
+- case JFFS2_COMPR_RUBINMIPS:
+-#if 0 /* Disabled 23/9/1 */
+- rubinmips_decompress(cdata_in, data_out, cdatalen, datalen);
+-#else
+- printk(KERN_WARNING "JFFS2: Rubinmips compression encountered but support not compiled in!\n");
+ #endif
++#ifdef JFFS2_USE_RUBINMIPS
++ case JFFS2_COMPR_RUBINMIPS:
++ jffs2_rubinmips_decompress(cdata_in, data_out, cdatalen, datalen);
+ break;
+- case JFFS2_COMPR_DYNRUBIN:
+-#if 1 /* Phase this one out */
+- dynrubin_decompress(cdata_in, data_out, cdatalen, datalen);
+-#else
+- printk(KERN_WARNING "JFFS2: Dynrubin compression encountered but support not compiled in!\n");
+ #endif
+- break;
++#ifdef JFFS2_USE_DYNRUBIN
++ case JFFS2_COMPR_DYNRUBIN:
+
++ jffs2_dynrubin_decompress(cdata_in, data_out, cdatalen, datalen);
++ break;
++#endif
+ default:
+ printk(KERN_NOTICE "Unknown JFFS2 compression type 0x%02x\n", comprtype);
+ return -EIO;
+diff -Nurb linux-mips-2.4.27/fs/jffs2/compr_rtime.c linux/fs/jffs2/compr_rtime.c
+--- linux-mips-2.4.27/fs/jffs2/compr_rtime.c 2001-10-19 03:24:56.000000000 +0200
++++ linux/fs/jffs2/compr_rtime.c 2004-11-19 10:25:12.087171216 +0100
+@@ -1,43 +1,19 @@
+ /*
+ * JFFS2 -- Journalling Flash File System, Version 2.
+ *
+- * Copyright (C) 2001 Red Hat, Inc.
++ * Copyright (C) 2001-2003 Red Hat, Inc.
+ *
+ * Created by Arjan van de Ven <arjanv@redhat.com>
+ *
+- * The original JFFS, from which the design for JFFS2 was derived,
+- * was designed and implemented by Axis Communications AB.
++ * For licensing information, see the file 'LICENCE' in this directory.
+ *
+- * The contents of this file are subject to the Red Hat eCos Public
+- * License Version 1.1 (the "Licence"); you may not use this file
+- * except in compliance with the Licence. You may obtain a copy of
+- * the Licence at http://www.redhat.com/
+- *
+- * Software distributed under the Licence is distributed on an "AS IS"
+- * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
+- * See the Licence for the specific language governing rights and
+- * limitations under the Licence.
+- *
+- * The Original Code is JFFS2 - Journalling Flash File System, version 2
+- *
+- * Alternatively, the contents of this file may be used under the
+- * terms of the GNU General Public License version 2 (the "GPL"), in
+- * which case the provisions of the GPL are applicable instead of the
+- * above. If you wish to allow the use of your version of this file
+- * only under the terms of the GPL and not to allow others to use your
+- * version of this file under the RHEPL, indicate your decision by
+- * deleting the provisions above and replace them with the notice and
+- * other provisions required by the GPL. If you do not delete the
+- * provisions above, a recipient may use your version of this file
+- * under either the RHEPL or the GPL.
+- *
+- * $Id: compr_rtime.c,v 1.5 2001/03/15 15:38:23 dwmw2 Exp $
++ * $Id: compr_rtime.c,v 1.11 2003/10/04 08:33:06 dwmw2 Exp $
+ *
+ *
+ * Very simple lz77-ish encoder.
+ *
+ * Theory of operation: Both encoder and decoder have a list of "last
+- * occurances" for every possible source-value; after sending the
++ * occurrences" for every possible source-value; after sending the
+ * first source-byte, the second byte indicated the "run" length of
+ * matches
+ *
+@@ -51,10 +27,10 @@
+ #include <linux/string.h>
+
+ /* _compress returns the compressed size, -1 if bigger */
+-int rtime_compress(unsigned char *data_in, unsigned char *cpage_out,
+- __u32 *sourcelen, __u32 *dstlen)
++int jffs2_rtime_compress(unsigned char *data_in, unsigned char *cpage_out,
++ uint32_t *sourcelen, uint32_t *dstlen)
+ {
+- int positions[256];
++ short positions[256];
+ int outpos = 0;
+ int pos=0;
+
+@@ -91,10 +67,10 @@
+ }
+
+
+-void rtime_decompress(unsigned char *data_in, unsigned char *cpage_out,
+- __u32 srclen, __u32 destlen)
++void jffs2_rtime_decompress(unsigned char *data_in, unsigned char *cpage_out,
++ uint32_t srclen, uint32_t destlen)
+ {
+- int positions[256];
++ short positions[256];
+ int outpos = 0;
+ int pos=0;
+
+diff -Nurb linux-mips-2.4.27/fs/jffs2/compr_rubin.c linux/fs/jffs2/compr_rubin.c
+--- linux-mips-2.4.27/fs/jffs2/compr_rubin.c 2001-11-05 21:16:18.000000000 +0100
++++ linux/fs/jffs2/compr_rubin.c 2004-11-19 10:25:12.088171064 +0100
+@@ -1,37 +1,13 @@
+ /*
+ * JFFS2 -- Journalling Flash File System, Version 2.
+ *
+- * Copyright (C) 2001 Red Hat, Inc.
++ * Copyright (C) 2001, 2002 Red Hat, Inc.
+ *
+ * Created by Arjan van de Ven <arjanv@redhat.com>
+ *
+- * The original JFFS, from which the design for JFFS2 was derived,
+- * was designed and implemented by Axis Communications AB.
++ * For licensing information, see the file 'LICENCE' in this directory.
+ *
+- * The contents of this file are subject to the Red Hat eCos Public
+- * License Version 1.1 (the "Licence"); you may not use this file
+- * except in compliance with the Licence. You may obtain a copy of
+- * the Licence at http://www.redhat.com/
+- *
+- * Software distributed under the Licence is distributed on an "AS IS"
+- * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
+- * See the Licence for the specific language governing rights and
+- * limitations under the Licence.
+- *
+- * The Original Code is JFFS2 - Journalling Flash File System, version 2
+- *
+- * Alternatively, the contents of this file may be used under the
+- * terms of the GNU General Public License version 2 (the "GPL"), in
+- * which case the provisions of the GPL are applicable instead of the
+- * above. If you wish to allow the use of your version of this file
+- * only under the terms of the GPL and not to allow others to use your
+- * version of this file under the RHEPL, indicate your decision by
+- * deleting the provisions above and replace them with the notice and
+- * other provisions required by the GPL. If you do not delete the
+- * provisions above, a recipient may use your version of this file
+- * under either the RHEPL or the GPL.
+- *
+- * $Id: compr_rubin.c,v 1.13 2001/09/23 10:06:05 rmk Exp $
++ * $Id: compr_rubin.c,v 1.17 2002/05/20 14:56:37 dwmw2 Exp $
+ *
+ */
+
+@@ -43,7 +19,7 @@
+
+
+
+-void init_rubin(struct rubin_state *rs, int div, int *bits)
++static void init_rubin(struct rubin_state *rs, int div, int *bits)
+ {
+ int c;
+
+@@ -56,7 +32,7 @@
+ }
+
+
+-int encode(struct rubin_state *rs, long A, long B, int symbol)
++static int encode(struct rubin_state *rs, long A, long B, int symbol)
+ {
+
+ long i0, i1;
+@@ -91,7 +67,7 @@
+ }
+
+
+-void end_rubin(struct rubin_state *rs)
++static void end_rubin(struct rubin_state *rs)
+ {
+
+ int i;
+@@ -104,7 +80,7 @@
+ }
+
+
+-void init_decode(struct rubin_state *rs, int div, int *bits)
++static void init_decode(struct rubin_state *rs, int div, int *bits)
+ {
+ init_rubin(rs, div, bits);
+
+@@ -151,7 +127,7 @@
+ rs->rec_q = rec_q;
+ }
+
+-int decode(struct rubin_state *rs, long A, long B)
++static int decode(struct rubin_state *rs, long A, long B)
+ {
+ unsigned long p = rs->p, q = rs->q;
+ long i0, threshold;
+@@ -212,8 +188,8 @@
+
+
+
+-int rubin_do_compress(int bit_divider, int *bits, unsigned char *data_in,
+- unsigned char *cpage_out, __u32 *sourcelen, __u32 *dstlen)
++static int rubin_do_compress(int bit_divider, int *bits, unsigned char *data_in,
++ unsigned char *cpage_out, uint32_t *sourcelen, uint32_t *dstlen)
+ {
+ int outpos = 0;
+ int pos=0;
+@@ -246,20 +222,20 @@
+ }
+ #if 0
+ /* _compress returns the compressed size, -1 if bigger */
+-int rubinmips_compress(unsigned char *data_in, unsigned char *cpage_out,
+- __u32 *sourcelen, __u32 *dstlen)
++int jffs2_rubinmips_compress(unsigned char *data_in, unsigned char *cpage_out,
++ uint32_t *sourcelen, uint32_t *dstlen)
+ {
+ return rubin_do_compress(BIT_DIVIDER_MIPS, bits_mips, data_in, cpage_out, sourcelen, dstlen);
+ }
+ #endif
+-int dynrubin_compress(unsigned char *data_in, unsigned char *cpage_out,
+- __u32 *sourcelen, __u32 *dstlen)
++int jffs2_dynrubin_compress(unsigned char *data_in, unsigned char *cpage_out,
++ uint32_t *sourcelen, uint32_t *dstlen)
+ {
+ int bits[8];
+ unsigned char histo[256];
+ int i;
+ int ret;
+- __u32 mysrclen, mydstlen;
++ uint32_t mysrclen, mydstlen;
+
+ mysrclen = *sourcelen;
+ mydstlen = *dstlen - 8;
+@@ -315,8 +291,8 @@
+ return 0;
+ }
+
+-void rubin_do_decompress(int bit_divider, int *bits, unsigned char *cdata_in,
+- unsigned char *page_out, __u32 srclen, __u32 destlen)
++static void rubin_do_decompress(int bit_divider, int *bits, unsigned char *cdata_in,
++ unsigned char *page_out, uint32_t srclen, uint32_t destlen)
+ {
+ int outpos = 0;
+ struct rubin_state rs;
+@@ -330,14 +306,14 @@
+ }
+
+
+-void rubinmips_decompress(unsigned char *data_in, unsigned char *cpage_out,
+- __u32 sourcelen, __u32 dstlen)
++void jffs2_rubinmips_decompress(unsigned char *data_in, unsigned char *cpage_out,
++ uint32_t sourcelen, uint32_t dstlen)
+ {
+ rubin_do_decompress(BIT_DIVIDER_MIPS, bits_mips, data_in, cpage_out, sourcelen, dstlen);
+ }
+
+-void dynrubin_decompress(unsigned char *data_in, unsigned char *cpage_out,
+- __u32 sourcelen, __u32 dstlen)
++void jffs2_dynrubin_decompress(unsigned char *data_in, unsigned char *cpage_out,
++ uint32_t sourcelen, uint32_t dstlen)
+ {
+ int bits[8];
+ int c;
+diff -Nurb linux-mips-2.4.27/fs/jffs2/compr_rubin.h linux/fs/jffs2/compr_rubin.h
+--- linux-mips-2.4.27/fs/jffs2/compr_rubin.h 2001-10-19 03:24:56.000000000 +0200
++++ linux/fs/jffs2/compr_rubin.h 2004-11-19 10:25:12.090170760 +0100
+@@ -1,7 +1,7 @@
+ /* Rubin encoder/decoder header */
+ /* work started at : aug 3, 1994 */
+ /* last modification : aug 15, 1994 */
+-/* $Id: compr_rubin.h,v 1.5 2001/02/26 13:50:01 dwmw2 Exp $ */
++/* $Id: compr_rubin.h,v 1.6 2002/01/25 01:49:26 dwmw2 Exp $ */
+
+ #include "pushpull.h"
+
+@@ -19,10 +19,3 @@
+ int bit_divider;
+ int bits[8];
+ };
+-
+-
+-void init_rubin (struct rubin_state *rs, int div, int *bits);
+-int encode (struct rubin_state *, long, long, int);
+-void end_rubin (struct rubin_state *);
+-void init_decode (struct rubin_state *, int div, int *bits);
+-int decode (struct rubin_state *, long, long);
+diff -Nurb linux-mips-2.4.27/fs/jffs2/compr_zlib.c linux/fs/jffs2/compr_zlib.c
+--- linux-mips-2.4.27/fs/jffs2/compr_zlib.c 2003-01-11 18:53:17.000000000 +0100
++++ linux/fs/jffs2/compr_zlib.c 2004-11-19 10:25:12.091170608 +0100
+@@ -1,50 +1,26 @@
+ /*
+ * JFFS2 -- Journalling Flash File System, Version 2.
+ *
+- * Copyright (C) 2001, 2002 Red Hat, Inc.
++ * Copyright (C) 2001-2003 Red Hat, Inc.
+ *
+- * Created by David Woodhouse <dwmw2@cambridge.redhat.com>
++ * Created by David Woodhouse <dwmw2@redhat.com>
+ *
+- * The original JFFS, from which the design for JFFS2 was derived,
+- * was designed and implemented by Axis Communications AB.
++ * For licensing information, see the file 'LICENCE' in this directory.
+ *
+- * The contents of this file are subject to the Red Hat eCos Public
+- * License Version 1.1 (the "Licence"); you may not use this file
+- * except in compliance with the Licence. You may obtain a copy of
+- * the Licence at http://www.redhat.com/
+- *
+- * Software distributed under the Licence is distributed on an "AS IS"
+- * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
+- * See the Licence for the specific language governing rights and
+- * limitations under the Licence.
+- *
+- * The Original Code is JFFS2 - Journalling Flash File System, version 2
+- *
+- * Alternatively, the contents of this file may be used under the
+- * terms of the GNU General Public License version 2 (the "GPL"), in
+- * which case the provisions of the GPL are applicable instead of the
+- * above. If you wish to allow the use of your version of this file
+- * only under the terms of the GPL and not to allow others to use your
+- * version of this file under the RHEPL, indicate your decision by
+- * deleting the provisions above and replace them with the notice and
+- * other provisions required by the GPL. If you do not delete the
+- * provisions above, a recipient may use your version of this file
+- * under either the RHEPL or the GPL.
+- *
+- * $Id: compr_zlib.c,v 1.8.2.1 2002/10/11 09:04:44 dwmw2 Exp $
++ * $Id: compr_zlib.c,v 1.25 2003/12/03 09:25:43 dwmw2 Exp $
+ *
+ */
+
+-#ifndef __KERNEL__
++#if !defined(__KERNEL__) && !defined(__ECOS)
+ #error "The userspace support got too messy and was removed. Update your mkfs.jffs2"
+ #endif
+
+ #include <linux/config.h>
+ #include <linux/kernel.h>
+-#include <linux/mtd/compatmac.h> /* for min() */
+ #include <linux/slab.h>
+-#include <linux/jffs2.h>
+ #include <linux/zlib.h>
++#include <linux/zutil.h>
++#include <asm/semaphore.h>
+ #include "nodelist.h"
+
+ /* Plan: call deflate() with avail_in == *sourcelen,
+@@ -58,21 +34,24 @@
+
+ static DECLARE_MUTEX(deflate_sem);
+ static DECLARE_MUTEX(inflate_sem);
+-static void *deflate_workspace;
+-static void *inflate_workspace;
++static z_stream inf_strm, def_strm;
++
++#ifdef __KERNEL__ /* Linux-only */
++#include <linux/vmalloc.h>
++#include <linux/init.h>
+
+ int __init jffs2_zlib_init(void)
+ {
+- deflate_workspace = vmalloc(zlib_deflate_workspacesize());
+- if (!deflate_workspace) {
++ def_strm.workspace = vmalloc(zlib_deflate_workspacesize());
++ if (!def_strm.workspace) {
+ printk(KERN_WARNING "Failed to allocate %d bytes for deflate workspace\n", zlib_deflate_workspacesize());
+ return -ENOMEM;
+ }
+ D1(printk(KERN_DEBUG "Allocated %d bytes for deflate workspace\n", zlib_deflate_workspacesize()));
+- inflate_workspace = vmalloc(zlib_inflate_workspacesize());
+- if (!inflate_workspace) {
++ inf_strm.workspace = vmalloc(zlib_inflate_workspacesize());
++ if (!inf_strm.workspace) {
+ printk(KERN_WARNING "Failed to allocate %d bytes for inflate workspace\n", zlib_inflate_workspacesize());
+- vfree(deflate_workspace);
++ vfree(def_strm.workspace);
+ return -ENOMEM;
+ }
+ D1(printk(KERN_DEBUG "Allocated %d bytes for inflate workspace\n", zlib_inflate_workspacesize()));
+@@ -81,97 +60,120 @@
+
+ void jffs2_zlib_exit(void)
+ {
+- vfree(deflate_workspace);
+- vfree(inflate_workspace);
++ vfree(def_strm.workspace);
++ vfree(inf_strm.workspace);
+ }
++#endif /* __KERNEL__ */
+
+-int zlib_compress(unsigned char *data_in, unsigned char *cpage_out,
+- __u32 *sourcelen, __u32 *dstlen)
++int jffs2_zlib_compress(unsigned char *data_in, unsigned char *cpage_out,
++ uint32_t *sourcelen, uint32_t *dstlen)
+ {
+- z_stream strm;
+ int ret;
+
+ if (*dstlen <= STREAM_END_SPACE)
+ return -1;
+
+ down(&deflate_sem);
+- strm.workspace = deflate_workspace;
+
+- if (Z_OK != zlib_deflateInit(&strm, 3)) {
++ if (Z_OK != zlib_deflateInit(&def_strm, 3)) {
+ printk(KERN_WARNING "deflateInit failed\n");
+ up(&deflate_sem);
+ return -1;
+ }
+
+- strm.next_in = data_in;
+- strm.total_in = 0;
++ def_strm.next_in = data_in;
++ def_strm.total_in = 0;
+
+- strm.next_out = cpage_out;
+- strm.total_out = 0;
++ def_strm.next_out = cpage_out;
++ def_strm.total_out = 0;
+
+- while (strm.total_out < *dstlen - STREAM_END_SPACE && strm.total_in < *sourcelen) {
+- strm.avail_out = *dstlen - (strm.total_out + STREAM_END_SPACE);
+- strm.avail_in = min((unsigned)(*sourcelen-strm.total_in), strm.avail_out);
++ while (def_strm.total_out < *dstlen - STREAM_END_SPACE && def_strm.total_in < *sourcelen) {
++ def_strm.avail_out = *dstlen - (def_strm.total_out + STREAM_END_SPACE);
++ def_strm.avail_in = min((unsigned)(*sourcelen-def_strm.total_in), def_strm.avail_out);
+ D1(printk(KERN_DEBUG "calling deflate with avail_in %d, avail_out %d\n",
+- strm.avail_in, strm.avail_out));
+- ret = zlib_deflate(&strm, Z_PARTIAL_FLUSH);
++ def_strm.avail_in, def_strm.avail_out));
++ ret = zlib_deflate(&def_strm, Z_PARTIAL_FLUSH);
+ D1(printk(KERN_DEBUG "deflate returned with avail_in %d, avail_out %d, total_in %ld, total_out %ld\n",
+- strm.avail_in, strm.avail_out, strm.total_in, strm.total_out));
++ def_strm.avail_in, def_strm.avail_out, def_strm.total_in, def_strm.total_out));
+ if (ret != Z_OK) {
+ D1(printk(KERN_DEBUG "deflate in loop returned %d\n", ret));
+- zlib_deflateEnd(&strm);
++ zlib_deflateEnd(&def_strm);
+ up(&deflate_sem);
+ return -1;
+ }
+ }
+- strm.avail_out += STREAM_END_SPACE;
+- strm.avail_in = 0;
+- ret = zlib_deflate(&strm, Z_FINISH);
+- zlib_deflateEnd(&strm);
+- up(&deflate_sem);
++ def_strm.avail_out += STREAM_END_SPACE;
++ def_strm.avail_in = 0;
++ ret = zlib_deflate(&def_strm, Z_FINISH);
++ zlib_deflateEnd(&def_strm);
++
+ if (ret != Z_STREAM_END) {
+ D1(printk(KERN_DEBUG "final deflate returned %d\n", ret));
+- return -1;
++ ret = -1;
++ goto out;
+ }
+
+- D1(printk(KERN_DEBUG "zlib compressed %ld bytes into %ld\n",
+- strm.total_in, strm.total_out));
++ if (def_strm.total_out >= def_strm.total_in) {
++ D1(printk(KERN_DEBUG "zlib compressed %ld bytes into %ld; failing\n",
++ def_strm.total_in, def_strm.total_out));
++ ret = -1;
++ goto out;
++ }
+
+- if (strm.total_out >= strm.total_in)
+- return -1;
++ D1(printk(KERN_DEBUG "zlib compressed %ld bytes into %ld\n",
++ def_strm.total_in, def_strm.total_out));
+
+- *dstlen = strm.total_out;
+- *sourcelen = strm.total_in;
+- return 0;
++ *dstlen = def_strm.total_out;
++ *sourcelen = def_strm.total_in;
++ ret = 0;
++ out:
++ up(&deflate_sem);
++ return ret;
+ }
+
+-void zlib_decompress(unsigned char *data_in, unsigned char *cpage_out,
+- __u32 srclen, __u32 destlen)
++void jffs2_zlib_decompress(unsigned char *data_in, unsigned char *cpage_out,
++ uint32_t srclen, uint32_t destlen)
+ {
+- z_stream strm;
+ int ret;
++ int wbits = MAX_WBITS;
+
+ down(&inflate_sem);
+- strm.workspace = inflate_workspace;
+
+- if (Z_OK != zlib_inflateInit(&strm)) {
++ inf_strm.next_in = data_in;
++ inf_strm.avail_in = srclen;
++ inf_strm.total_in = 0;
++
++ inf_strm.next_out = cpage_out;
++ inf_strm.avail_out = destlen;
++ inf_strm.total_out = 0;
++
++ /* If it's deflate, and it's got no preset dictionary, then
++ we can tell zlib to skip the adler32 check. */
++ if (srclen > 2 && !(data_in[1] & PRESET_DICT) &&
++ ((data_in[0] & 0x0f) == Z_DEFLATED) &&
++ !(((data_in[0]<<8) + data_in[1]) % 31)) {
++
++ D2(printk(KERN_DEBUG "inflate skipping adler32\n"));
++ wbits = -((data_in[0] >> 4) + 8);
++ inf_strm.next_in += 2;
++ inf_strm.avail_in -= 2;
++ } else {
++ /* Let this remain D1 for now -- it should never happen */
++ D1(printk(KERN_DEBUG "inflate not skipping adler32\n"));
++ }
++
++
++ if (Z_OK != zlib_inflateInit2(&inf_strm, wbits)) {
+ printk(KERN_WARNING "inflateInit failed\n");
+ up(&inflate_sem);
+ return;
+ }
+- strm.next_in = data_in;
+- strm.avail_in = srclen;
+- strm.total_in = 0;
+-
+- strm.next_out = cpage_out;
+- strm.avail_out = destlen;
+- strm.total_out = 0;
+
+- while((ret = zlib_inflate(&strm, Z_FINISH)) == Z_OK)
++ while((ret = zlib_inflate(&inf_strm, Z_FINISH)) == Z_OK)
+ ;
+ if (ret != Z_STREAM_END) {
+ printk(KERN_NOTICE "inflate returned %d\n", ret);
+ }
+- zlib_inflateEnd(&strm);
++ zlib_inflateEnd(&inf_strm);
+ up(&inflate_sem);
+ }
+diff -Nurb linux-mips-2.4.27/fs/jffs2/comprtest.c linux/fs/jffs2/comprtest.c
+--- linux-mips-2.4.27/fs/jffs2/comprtest.c 2001-10-19 03:24:56.000000000 +0200
++++ linux/fs/jffs2/comprtest.c 2004-11-19 10:25:12.093170304 +0100
+@@ -1,4 +1,4 @@
+-/* $Id: comprtest.c,v 1.4 2001/02/21 14:03:20 dwmw2 Exp $ */
++/* $Id: comprtest.c,v 1.5 2002/01/03 15:20:44 dwmw2 Exp $ */
+
+ #include <linux/kernel.h>
+ #include <linux/string.h>
+@@ -266,13 +266,13 @@
+ static unsigned char decomprbuf[TESTDATA_LEN];
+
+ int jffs2_decompress(unsigned char comprtype, unsigned char *cdata_in,
+- unsigned char *data_out, __u32 cdatalen, __u32 datalen);
++ unsigned char *data_out, uint32_t cdatalen, uint32_t datalen);
+ unsigned char jffs2_compress(unsigned char *data_in, unsigned char *cpage_out,
+- __u32 *datalen, __u32 *cdatalen);
++ uint32_t *datalen, uint32_t *cdatalen);
+
+ int init_module(void ) {
+ unsigned char comprtype;
+- __u32 c, d;
++ uint32_t c, d;
+ int ret;
+
+ printk("Original data: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n",
+diff -Nurb linux-mips-2.4.27/fs/jffs2/crc32.c linux/fs/jffs2/crc32.c
+--- linux-mips-2.4.27/fs/jffs2/crc32.c 1970-01-01 01:00:00.000000000 +0100
++++ linux/fs/jffs2/crc32.c 2004-11-19 10:25:12.095170000 +0100
+@@ -0,0 +1,97 @@
++/*
++ * COPYRIGHT (C) 1986 Gary S. Brown. You may use this program, or
++ * code or tables extracted from it, as desired without restriction.
++ *
++ * First, the polynomial itself and its table of feedback terms. The
++ * polynomial is
++ * X^32+X^26+X^23+X^22+X^16+X^12+X^11+X^10+X^8+X^7+X^5+X^4+X^2+X^1+X^0
++ *
++ * Note that we take it "backwards" and put the highest-order term in
++ * the lowest-order bit. The X^32 term is "implied"; the LSB is the
++ * X^31 term, etc. The X^0 term (usually shown as "+1") results in
++ * the MSB being 1
++ *
++ * Note that the usual hardware shift register implementation, which
++ * is what we're using (we're merely optimizing it by doing eight-bit
++ * chunks at a time) shifts bits into the lowest-order term. In our
++ * implementation, that means shifting towards the right. Why do we
++ * do it this way? Because the calculated CRC must be transmitted in
++ * order from highest-order term to lowest-order term. UARTs transmit
++ * characters in order from LSB to MSB. By storing the CRC this way
++ * we hand it to the UART in the order low-byte to high-byte; the UART
++ * sends each low-bit to hight-bit; and the result is transmission bit
++ * by bit from highest- to lowest-order term without requiring any bit
++ * shuffling on our part. Reception works similarly
++ *
++ * The feedback terms table consists of 256, 32-bit entries. Notes
++ *
++ * The table can be generated at runtime if desired; code to do so
++ * is shown later. It might not be obvious, but the feedback
++ * terms simply represent the results of eight shift/xor opera
++ * tions for all combinations of data and CRC register values
++ *
++ * The values must be right-shifted by eight bits by the "updcrc
++ * logic; the shift must be unsigned (bring in zeroes). On some
++ * hardware you could probably optimize the shift in assembler by
++ * using byte-swap instructions
++ * polynomial $edb88320
++ */
++
++/* $Id: crc32.c,v 1.4 2002/01/03 15:20:44 dwmw2 Exp $ */
++
++#include "crc32.h"
++
++const uint32_t crc32_table[256] = {
++ 0x00000000L, 0x77073096L, 0xee0e612cL, 0x990951baL, 0x076dc419L,
++ 0x706af48fL, 0xe963a535L, 0x9e6495a3L, 0x0edb8832L, 0x79dcb8a4L,
++ 0xe0d5e91eL, 0x97d2d988L, 0x09b64c2bL, 0x7eb17cbdL, 0xe7b82d07L,
++ 0x90bf1d91L, 0x1db71064L, 0x6ab020f2L, 0xf3b97148L, 0x84be41deL,
++ 0x1adad47dL, 0x6ddde4ebL, 0xf4d4b551L, 0x83d385c7L, 0x136c9856L,
++ 0x646ba8c0L, 0xfd62f97aL, 0x8a65c9ecL, 0x14015c4fL, 0x63066cd9L,
++ 0xfa0f3d63L, 0x8d080df5L, 0x3b6e20c8L, 0x4c69105eL, 0xd56041e4L,
++ 0xa2677172L, 0x3c03e4d1L, 0x4b04d447L, 0xd20d85fdL, 0xa50ab56bL,
++ 0x35b5a8faL, 0x42b2986cL, 0xdbbbc9d6L, 0xacbcf940L, 0x32d86ce3L,
++ 0x45df5c75L, 0xdcd60dcfL, 0xabd13d59L, 0x26d930acL, 0x51de003aL,
++ 0xc8d75180L, 0xbfd06116L, 0x21b4f4b5L, 0x56b3c423L, 0xcfba9599L,
++ 0xb8bda50fL, 0x2802b89eL, 0x5f058808L, 0xc60cd9b2L, 0xb10be924L,
++ 0x2f6f7c87L, 0x58684c11L, 0xc1611dabL, 0xb6662d3dL, 0x76dc4190L,
++ 0x01db7106L, 0x98d220bcL, 0xefd5102aL, 0x71b18589L, 0x06b6b51fL,
++ 0x9fbfe4a5L, 0xe8b8d433L, 0x7807c9a2L, 0x0f00f934L, 0x9609a88eL,
++ 0xe10e9818L, 0x7f6a0dbbL, 0x086d3d2dL, 0x91646c97L, 0xe6635c01L,
++ 0x6b6b51f4L, 0x1c6c6162L, 0x856530d8L, 0xf262004eL, 0x6c0695edL,
++ 0x1b01a57bL, 0x8208f4c1L, 0xf50fc457L, 0x65b0d9c6L, 0x12b7e950L,
++ 0x8bbeb8eaL, 0xfcb9887cL, 0x62dd1ddfL, 0x15da2d49L, 0x8cd37cf3L,
++ 0xfbd44c65L, 0x4db26158L, 0x3ab551ceL, 0xa3bc0074L, 0xd4bb30e2L,
++ 0x4adfa541L, 0x3dd895d7L, 0xa4d1c46dL, 0xd3d6f4fbL, 0x4369e96aL,
++ 0x346ed9fcL, 0xad678846L, 0xda60b8d0L, 0x44042d73L, 0x33031de5L,
++ 0xaa0a4c5fL, 0xdd0d7cc9L, 0x5005713cL, 0x270241aaL, 0xbe0b1010L,
++ 0xc90c2086L, 0x5768b525L, 0x206f85b3L, 0xb966d409L, 0xce61e49fL,
++ 0x5edef90eL, 0x29d9c998L, 0xb0d09822L, 0xc7d7a8b4L, 0x59b33d17L,
++ 0x2eb40d81L, 0xb7bd5c3bL, 0xc0ba6cadL, 0xedb88320L, 0x9abfb3b6L,
++ 0x03b6e20cL, 0x74b1d29aL, 0xead54739L, 0x9dd277afL, 0x04db2615L,
++ 0x73dc1683L, 0xe3630b12L, 0x94643b84L, 0x0d6d6a3eL, 0x7a6a5aa8L,
++ 0xe40ecf0bL, 0x9309ff9dL, 0x0a00ae27L, 0x7d079eb1L, 0xf00f9344L,
++ 0x8708a3d2L, 0x1e01f268L, 0x6906c2feL, 0xf762575dL, 0x806567cbL,
++ 0x196c3671L, 0x6e6b06e7L, 0xfed41b76L, 0x89d32be0L, 0x10da7a5aL,
++ 0x67dd4accL, 0xf9b9df6fL, 0x8ebeeff9L, 0x17b7be43L, 0x60b08ed5L,
++ 0xd6d6a3e8L, 0xa1d1937eL, 0x38d8c2c4L, 0x4fdff252L, 0xd1bb67f1L,
++ 0xa6bc5767L, 0x3fb506ddL, 0x48b2364bL, 0xd80d2bdaL, 0xaf0a1b4cL,
++ 0x36034af6L, 0x41047a60L, 0xdf60efc3L, 0xa867df55L, 0x316e8eefL,
++ 0x4669be79L, 0xcb61b38cL, 0xbc66831aL, 0x256fd2a0L, 0x5268e236L,
++ 0xcc0c7795L, 0xbb0b4703L, 0x220216b9L, 0x5505262fL, 0xc5ba3bbeL,
++ 0xb2bd0b28L, 0x2bb45a92L, 0x5cb36a04L, 0xc2d7ffa7L, 0xb5d0cf31L,
++ 0x2cd99e8bL, 0x5bdeae1dL, 0x9b64c2b0L, 0xec63f226L, 0x756aa39cL,
++ 0x026d930aL, 0x9c0906a9L, 0xeb0e363fL, 0x72076785L, 0x05005713L,
++ 0x95bf4a82L, 0xe2b87a14L, 0x7bb12baeL, 0x0cb61b38L, 0x92d28e9bL,
++ 0xe5d5be0dL, 0x7cdcefb7L, 0x0bdbdf21L, 0x86d3d2d4L, 0xf1d4e242L,
++ 0x68ddb3f8L, 0x1fda836eL, 0x81be16cdL, 0xf6b9265bL, 0x6fb077e1L,
++ 0x18b74777L, 0x88085ae6L, 0xff0f6a70L, 0x66063bcaL, 0x11010b5cL,
++ 0x8f659effL, 0xf862ae69L, 0x616bffd3L, 0x166ccf45L, 0xa00ae278L,
++ 0xd70dd2eeL, 0x4e048354L, 0x3903b3c2L, 0xa7672661L, 0xd06016f7L,
++ 0x4969474dL, 0x3e6e77dbL, 0xaed16a4aL, 0xd9d65adcL, 0x40df0b66L,
++ 0x37d83bf0L, 0xa9bcae53L, 0xdebb9ec5L, 0x47b2cf7fL, 0x30b5ffe9L,
++ 0xbdbdf21cL, 0xcabac28aL, 0x53b39330L, 0x24b4a3a6L, 0xbad03605L,
++ 0xcdd70693L, 0x54de5729L, 0x23d967bfL, 0xb3667a2eL, 0xc4614ab8L,
++ 0x5d681b02L, 0x2a6f2b94L, 0xb40bbe37L, 0xc30c8ea1L, 0x5a05df1bL,
++ 0x2d02ef8dL
++};
+diff -Nurb linux-mips-2.4.27/fs/jffs2/crc32.h linux/fs/jffs2/crc32.h
+--- linux-mips-2.4.27/fs/jffs2/crc32.h 1970-01-01 01:00:00.000000000 +0100
++++ linux/fs/jffs2/crc32.h 2004-11-19 10:25:12.096169848 +0100
+@@ -0,0 +1,21 @@
++#ifndef CRC32_H
++#define CRC32_H
++
++/* $Id: crc32.h,v 1.4 2002/01/03 15:20:44 dwmw2 Exp $ */
++
++#include <linux/types.h>
++
++extern const uint32_t crc32_table[256];
++
++/* Return a 32-bit CRC of the contents of the buffer. */
++
++static inline uint32_t
++crc32(uint32_t val, const void *ss, int len)
++{
++ const unsigned char *s = ss;
++ while (--len >= 0)
++ val = crc32_table[(val ^ *s++) & 0xff] ^ (val >> 8);
++ return val;
++}
++
++#endif
+diff -Nurb linux-mips-2.4.27/fs/jffs2/dir.c linux/fs/jffs2/dir.c
+--- linux-mips-2.4.27/fs/jffs2/dir.c 2003-11-17 02:07:44.000000000 +0100
++++ linux/fs/jffs2/dir.c 2004-11-19 10:25:12.097169696 +0100
+@@ -1,84 +1,73 @@
+ /*
+ * JFFS2 -- Journalling Flash File System, Version 2.
+ *
+- * Copyright (C) 2001 Red Hat, Inc.
++ * Copyright (C) 2001-2003 Red Hat, Inc.
+ *
+- * Created by David Woodhouse <dwmw2@cambridge.redhat.com>
++ * Created by David Woodhouse <dwmw2@redhat.com>
+ *
+- * The original JFFS, from which the design for JFFS2 was derived,
+- * was designed and implemented by Axis Communications AB.
++ * For licensing information, see the file 'LICENCE' in this directory.
+ *
+- * The contents of this file are subject to the Red Hat eCos Public
+- * License Version 1.1 (the "Licence"); you may not use this file
+- * except in compliance with the Licence. You may obtain a copy of
+- * the Licence at http://www.redhat.com/
+- *
+- * Software distributed under the Licence is distributed on an "AS IS"
+- * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
+- * See the Licence for the specific language governing rights and
+- * limitations under the Licence.
+- *
+- * The Original Code is JFFS2 - Journalling Flash File System, version 2
+- *
+- * Alternatively, the contents of this file may be used under the
+- * terms of the GNU General Public License version 2 (the "GPL"), in
+- * which case the provisions of the GPL are applicable instead of the
+- * above. If you wish to allow the use of your version of this file
+- * only under the terms of the GPL and not to allow others to use your
+- * version of this file under the RHEPL, indicate your decision by
+- * deleting the provisions above and replace them with the notice and
+- * other provisions required by the GPL. If you do not delete the
+- * provisions above, a recipient may use your version of this file
+- * under either the RHEPL or the GPL.
+- *
+- * $Id: dir.c,v 1.45.2.8 2003/11/02 13:51:17 dwmw2 Exp $
++ * $Id: dir.c,v 1.82 2003/10/11 11:47:23 dwmw2 Exp $
+ *
+ */
+
+ #include <linux/kernel.h>
+ #include <linux/slab.h>
++#include <linux/sched.h>
+ #include <linux/fs.h>
+-#include <linux/mtd/compatmac.h> /* For completion */
++#include <linux/crc32.h>
+ #include <linux/jffs2.h>
+ #include <linux/jffs2_fs_i.h>
+ #include <linux/jffs2_fs_sb.h>
++#include <linux/time.h>
+ #include "nodelist.h"
+-#include <linux/crc32.h>
++
++/* Urgh. Please tell me there's a nicer way of doing these. */
++#include <linux/version.h>
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,48)
++typedef int mknod_arg_t;
++#define NAMEI_COMPAT(x) ((void *)x)
++#else
++typedef dev_t mknod_arg_t;
++#define NAMEI_COMPAT(x) (x)
++#endif
+
+ static int jffs2_readdir (struct file *, void *, filldir_t);
+
+-static int jffs2_create (struct inode *,struct dentry *,int);
+-static struct dentry *jffs2_lookup (struct inode *,struct dentry *);
++static int jffs2_create (struct inode *,struct dentry *,int,
++ struct nameidata *);
++static struct dentry *jffs2_lookup (struct inode *,struct dentry *,
++ struct nameidata *);
+ static int jffs2_link (struct dentry *,struct inode *,struct dentry *);
+ static int jffs2_unlink (struct inode *,struct dentry *);
+ static int jffs2_symlink (struct inode *,struct dentry *,const char *);
+ static int jffs2_mkdir (struct inode *,struct dentry *,int);
+ static int jffs2_rmdir (struct inode *,struct dentry *);
+-static int jffs2_mknod (struct inode *,struct dentry *,int,int);
++static int jffs2_mknod (struct inode *,struct dentry *,int,mknod_arg_t);
+ static int jffs2_rename (struct inode *, struct dentry *,
+ struct inode *, struct dentry *);
+
+ struct file_operations jffs2_dir_operations =
+ {
+- read: generic_read_dir,
+- readdir: jffs2_readdir,
+- ioctl: jffs2_ioctl,
+- fsync: jffs2_null_fsync
++ .read = generic_read_dir,
++ .readdir = jffs2_readdir,
++ .ioctl = jffs2_ioctl,
++ .fsync = jffs2_fsync
+ };
+
+
+ struct inode_operations jffs2_dir_inode_operations =
+ {
+- create: jffs2_create,
+- lookup: jffs2_lookup,
+- link: jffs2_link,
+- unlink: jffs2_unlink,
+- symlink: jffs2_symlink,
+- mkdir: jffs2_mkdir,
+- rmdir: jffs2_rmdir,
+- mknod: jffs2_mknod,
+- rename: jffs2_rename,
+- setattr: jffs2_setattr,
++ .create = NAMEI_COMPAT(jffs2_create),
++ .lookup = NAMEI_COMPAT(jffs2_lookup),
++ .link = jffs2_link,
++ .unlink = jffs2_unlink,
++ .symlink = jffs2_symlink,
++ .mkdir = jffs2_mkdir,
++ .rmdir = jffs2_rmdir,
++ .mknod = jffs2_mknod,
++ .rename = jffs2_rename,
++ .setattr = jffs2_setattr,
+ };
+
+ /***********************************************************************/
+@@ -88,12 +77,13 @@
+ and we use the same hash function as the dentries. Makes this
+ nice and simple
+ */
+-static struct dentry *jffs2_lookup(struct inode *dir_i, struct dentry *target)
++static struct dentry *jffs2_lookup(struct inode *dir_i, struct dentry *target,
++ struct nameidata *nd)
+ {
+ struct jffs2_inode_info *dir_f;
+ struct jffs2_sb_info *c;
+ struct jffs2_full_dirent *fd = NULL, *fd_list;
+- __u32 ino = 0;
++ uint32_t ino = 0;
+ struct inode *inode = NULL;
+
+ D1(printk(KERN_DEBUG "jffs2_lookup()\n"));
+@@ -153,8 +143,9 @@
+ offset++;
+ }
+ if (offset == 1) {
+- D1(printk(KERN_DEBUG "Dirent 1: \"..\", ino #%lu\n", filp->f_dentry->d_parent->d_inode->i_ino));
+- if (filldir(dirent, "..", 2, 1, filp->f_dentry->d_parent->d_inode->i_ino, DT_DIR) < 0)
++ unsigned long pino = parent_ino(filp->f_dentry);
++ D1(printk(KERN_DEBUG "Dirent 1: \"..\", ino #%lu\n", pino));
++ if (filldir(dirent, "..", 2, 1, pino, DT_DIR) < 0)
+ goto out;
+ offset++;
+ }
+@@ -188,18 +179,14 @@
+
+ /***********************************************************************/
+
+-static int jffs2_create(struct inode *dir_i, struct dentry *dentry, int mode)
++
++static int jffs2_create(struct inode *dir_i, struct dentry *dentry, int mode,
++ struct nameidata *nd)
+ {
++ struct jffs2_raw_inode *ri;
+ struct jffs2_inode_info *f, *dir_f;
+ struct jffs2_sb_info *c;
+ struct inode *inode;
+- struct jffs2_raw_inode *ri;
+- struct jffs2_raw_dirent *rd;
+- struct jffs2_full_dnode *fn;
+- struct jffs2_full_dirent *fd;
+- int namelen;
+- __u32 alloclen, phys_ofs;
+- __u32 writtenlen;
+ int ret;
+
+ ri = jffs2_alloc_raw_inode();
+@@ -210,23 +197,11 @@
+
+ D1(printk(KERN_DEBUG "jffs2_create()\n"));
+
+- /* Try to reserve enough space for both node and dirent.
+- * Just the node will do for now, though
+- */
+- namelen = dentry->d_name.len;
+- ret = jffs2_reserve_space(c, sizeof(*ri), &phys_ofs, &alloclen, ALLOC_NORMAL);
+- D1(printk(KERN_DEBUG "jffs2_create(): reserved 0x%x bytes\n", alloclen));
+- if (ret) {
+- jffs2_free_raw_inode(ri);
+- return ret;
+- }
+-
+ inode = jffs2_new_inode(dir_i, mode, ri);
+
+ if (IS_ERR(inode)) {
+ D1(printk(KERN_DEBUG "jffs2_new_inode() failed\n"));
+ jffs2_free_raw_inode(ri);
+- jffs2_complete_reservation(c);
+ return PTR_ERR(inode);
+ }
+
+@@ -236,93 +211,22 @@
+ inode->i_mapping->nrpages = 0;
+
+ f = JFFS2_INODE_INFO(inode);
++ dir_f = JFFS2_INODE_INFO(dir_i);
+
+- ri->data_crc = 0;
+- ri->node_crc = crc32(0, ri, sizeof(*ri)-8);
+-
+- fn = jffs2_write_dnode(inode, ri, NULL, 0, phys_ofs, &writtenlen);
+- D1(printk(KERN_DEBUG "jffs2_create created file with mode 0x%x\n", ri->mode));
+- jffs2_free_raw_inode(ri);
+-
+- if (IS_ERR(fn)) {
+- D1(printk(KERN_DEBUG "jffs2_write_dnode() failed\n"));
+- /* Eeek. Wave bye bye */
+- up(&f->sem);
+- jffs2_complete_reservation(c);
+- jffs2_clear_inode(inode);
+- return PTR_ERR(fn);
+- }
+- /* No data here. Only a metadata node, which will be
+- obsoleted by the first data write
+- */
+- f->metadata = fn;
+-
+- /* Work out where to put the dirent node now. */
+- writtenlen = PAD(writtenlen);
+- phys_ofs += writtenlen;
+- alloclen -= writtenlen;
+- up(&f->sem);
+-
+- if (alloclen < sizeof(*rd)+namelen) {
+- /* Not enough space left in this chunk. Get some more */
+- jffs2_complete_reservation(c);
+- ret = jffs2_reserve_space(c, sizeof(*rd)+namelen, &phys_ofs, &alloclen, ALLOC_NORMAL);
++ ret = jffs2_do_create(c, dir_f, f, ri,
++ dentry->d_name.name, dentry->d_name.len);
+
+ if (ret) {
+- /* Eep. */
+- D1(printk(KERN_DEBUG "jffs2_reserve_space() for dirent failed\n"));
+ jffs2_clear_inode(inode);
++ make_bad_inode(inode);
++ iput(inode);
++ jffs2_free_raw_inode(ri);
+ return ret;
+ }
+- }
+
+- rd = jffs2_alloc_raw_dirent();
+- if (!rd) {
+- /* Argh. Now we treat it like a normal delete */
+- jffs2_complete_reservation(c);
+- jffs2_clear_inode(inode);
+- return -ENOMEM;
+- }
+-
+- dir_f = JFFS2_INODE_INFO(dir_i);
+- down(&dir_f->sem);
+-
+- rd->magic = JFFS2_MAGIC_BITMASK;
+- rd->nodetype = JFFS2_NODETYPE_DIRENT;
+- rd->totlen = sizeof(*rd) + namelen;
+- rd->hdr_crc = crc32(0, rd, sizeof(struct jffs2_unknown_node)-4);
+-
+- rd->pino = dir_i->i_ino;
+- rd->version = ++dir_f->highest_version;
+- rd->ino = inode->i_ino;
+- rd->mctime = CURRENT_TIME;
+- rd->nsize = namelen;
+- rd->type = DT_REG;
+- rd->node_crc = crc32(0, rd, sizeof(*rd)-8);
+- rd->name_crc = crc32(0, dentry->d_name.name, namelen);
+-
+- fd = jffs2_write_dirent(dir_i, rd, dentry->d_name.name, namelen, phys_ofs, &writtenlen);
+-
+- jffs2_complete_reservation(c);
+-
+- if (IS_ERR(fd)) {
+- /* dirent failed to write. Delete the inode normally
+- as if it were the final unlink() */
+- jffs2_free_raw_dirent(rd);
+- up(&dir_f->sem);
+- jffs2_clear_inode(inode);
+- return PTR_ERR(fd);
+- }
+-
+- dir_i->i_mtime = dir_i->i_ctime = rd->mctime;
+-
+- jffs2_free_raw_dirent(rd);
+-
+- /* Link the fd into the inode's list, obsoleting an old
+- one if necessary. */
+- jffs2_add_fd_to_list(c, fd, &dir_f->dents);
+- up(&dir_f->sem);
++ dir_i->i_mtime = dir_i->i_ctime = ITIME(je32_to_cpu(ri->ctime));
+
++ jffs2_free_raw_inode(ri);
+ d_instantiate(dentry, inode);
+
+ D1(printk(KERN_DEBUG "jffs2_create: Created ino #%lu with mode %o, nlink %d(%d). nrpages %ld\n",
+@@ -332,173 +236,48 @@
+
+ /***********************************************************************/
+
+-static int jffs2_do_unlink(struct inode *dir_i, struct dentry *dentry, int rename)
+-{
+- struct jffs2_inode_info *dir_f, *f;
+- struct jffs2_sb_info *c;
+- struct jffs2_raw_dirent *rd;
+- struct jffs2_full_dirent *fd;
+- __u32 alloclen, phys_ofs;
+- int ret;
+-
+- c = JFFS2_SB_INFO(dir_i->i_sb);
+-
+- rd = jffs2_alloc_raw_dirent();
+- if (!rd)
+- return -ENOMEM;
+-
+- ret = jffs2_reserve_space(c, sizeof(*rd)+dentry->d_name.len, &phys_ofs, &alloclen, ALLOC_DELETION);
+- if (ret) {
+- jffs2_free_raw_dirent(rd);
+- return ret;
+- }
+-
+- dir_f = JFFS2_INODE_INFO(dir_i);
+- down(&dir_f->sem);
+-
+- /* Build a deletion node */
+- rd->magic = JFFS2_MAGIC_BITMASK;
+- rd->nodetype = JFFS2_NODETYPE_DIRENT;
+- rd->totlen = sizeof(*rd) + dentry->d_name.len;
+- rd->hdr_crc = crc32(0, rd, sizeof(struct jffs2_unknown_node)-4);
+-
+- rd->pino = dir_i->i_ino;
+- rd->version = ++dir_f->highest_version;
+- rd->ino = 0;
+- rd->mctime = CURRENT_TIME;
+- rd->nsize = dentry->d_name.len;
+- rd->type = DT_UNKNOWN;
+- rd->node_crc = crc32(0, rd, sizeof(*rd)-8);
+- rd->name_crc = crc32(0, dentry->d_name.name, dentry->d_name.len);
+-
+- fd = jffs2_write_dirent(dir_i, rd, dentry->d_name.name, dentry->d_name.len, phys_ofs, NULL);
+-
+- jffs2_complete_reservation(c);
+- jffs2_free_raw_dirent(rd);
+-
+- if (IS_ERR(fd)) {
+- up(&dir_f->sem);
+- return PTR_ERR(fd);
+- }
+-
+- /* File it. This will mark the old one obsolete. */
+- jffs2_add_fd_to_list(c, fd, &dir_f->dents);
+- up(&dir_f->sem);
+-
+- if (!rename) {
+- f = JFFS2_INODE_INFO(dentry->d_inode);
+- down(&f->sem);
+-
+- while (f->dents) {
+- /* There can be only deleted ones */
+- fd = f->dents;
+-
+- f->dents = fd->next;
+-
+- if (fd->ino) {
+- printk(KERN_WARNING "Deleting inode #%u with active dentry \"%s\"->ino #%u\n",
+- f->inocache->ino, fd->name, fd->ino);
+- } else {
+- D1(printk(KERN_DEBUG "Removing deletion dirent for \"%s\" from dir ino #%u\n", fd->name, f->inocache->ino));
+- }
+- jffs2_mark_node_obsolete(c, fd->raw);
+- jffs2_free_full_dirent(fd);
+- }
+- /* Don't oops on unlinking a bad inode */
+- if (f->inocache)
+- f->inocache->nlink--;
+- dentry->d_inode->i_nlink--;
+- up(&f->sem);
+- }
+-
+- return 0;
+-}
+
+ static int jffs2_unlink(struct inode *dir_i, struct dentry *dentry)
+ {
+- return jffs2_do_unlink(dir_i, dentry, 0);
+-}
+-/***********************************************************************/
+-
+-static int jffs2_do_link (struct dentry *old_dentry, struct inode *dir_i, struct dentry *dentry, int rename)
+-{
+- struct jffs2_inode_info *dir_f, *f;
+- struct jffs2_sb_info *c;
+- struct jffs2_raw_dirent *rd;
+- struct jffs2_full_dirent *fd;
+- __u32 alloclen, phys_ofs;
++ struct jffs2_sb_info *c = JFFS2_SB_INFO(dir_i->i_sb);
++ struct jffs2_inode_info *dir_f = JFFS2_INODE_INFO(dir_i);
++ struct jffs2_inode_info *dead_f = JFFS2_INODE_INFO(dentry->d_inode);
+ int ret;
+
+- c = JFFS2_SB_INFO(dir_i->i_sb);
+-
+- rd = jffs2_alloc_raw_dirent();
+- if (!rd)
+- return -ENOMEM;
+-
+- ret = jffs2_reserve_space(c, sizeof(*rd)+dentry->d_name.len, &phys_ofs, &alloclen, ALLOC_NORMAL);
+- if (ret) {
+- jffs2_free_raw_dirent(rd);
++ ret = jffs2_do_unlink(c, dir_f, dentry->d_name.name,
++ dentry->d_name.len, dead_f);
++ if (dead_f->inocache)
++ dentry->d_inode->i_nlink = dead_f->inocache->nlink;
+ return ret;
+- }
+-
+- dir_f = JFFS2_INODE_INFO(dir_i);
+- down(&dir_f->sem);
+-
+- /* Build a deletion node */
+- rd->magic = JFFS2_MAGIC_BITMASK;
+- rd->nodetype = JFFS2_NODETYPE_DIRENT;
+- rd->totlen = sizeof(*rd) + dentry->d_name.len;
+- rd->hdr_crc = crc32(0, rd, sizeof(struct jffs2_unknown_node)-4);
+-
+- rd->pino = dir_i->i_ino;
+- rd->version = ++dir_f->highest_version;
+- rd->ino = old_dentry->d_inode->i_ino;
+- rd->mctime = CURRENT_TIME;
+- rd->nsize = dentry->d_name.len;
+-
+- /* XXX: This is ugly. */
+- rd->type = (old_dentry->d_inode->i_mode & S_IFMT) >> 12;
+- if (!rd->type) rd->type = DT_REG;
+-
+- rd->node_crc = crc32(0, rd, sizeof(*rd)-8);
+- rd->name_crc = crc32(0, dentry->d_name.name, dentry->d_name.len);
+-
+- fd = jffs2_write_dirent(dir_i, rd, dentry->d_name.name, dentry->d_name.len, phys_ofs, NULL);
+-
+- jffs2_complete_reservation(c);
+- jffs2_free_raw_dirent(rd);
+-
+- if (IS_ERR(fd)) {
+- up(&dir_f->sem);
+- return PTR_ERR(fd);
+- }
+-
+- /* File it. This will mark the old one obsolete. */
+- jffs2_add_fd_to_list(c, fd, &dir_f->dents);
+- up(&dir_f->sem);
+-
+- if (!rename) {
+- f = JFFS2_INODE_INFO(old_dentry->d_inode);
+- down(&f->sem);
+- old_dentry->d_inode->i_nlink = ++f->inocache->nlink;
+- up(&f->sem);
+- }
+- return 0;
+ }
++/***********************************************************************/
++
+
+ static int jffs2_link (struct dentry *old_dentry, struct inode *dir_i, struct dentry *dentry)
+ {
++ struct jffs2_sb_info *c = JFFS2_SB_INFO(old_dentry->d_inode->i_sb);
++ struct jffs2_inode_info *f = JFFS2_INODE_INFO(old_dentry->d_inode);
++ struct jffs2_inode_info *dir_f = JFFS2_INODE_INFO(dir_i);
+ int ret;
++ uint8_t type;
+
+- /* Can't link a bad inode. */
+- if (!JFFS2_INODE_INFO(old_dentry->d_inode)->inocache)
++ /* Don't let people make hard links to bad inodes. */
++ if (!f->inocache)
+ return -EIO;
+
+ if (S_ISDIR(old_dentry->d_inode->i_mode))
+ return -EPERM;
+
+- ret = jffs2_do_link(old_dentry, dir_i, dentry, 0);
++ /* XXX: This is ugly */
++ type = (old_dentry->d_inode->i_mode & S_IFMT) >> 12;
++ if (!type) type = DT_REG;
++
++ ret = jffs2_do_link(c, dir_f, f->inocache->ino, type, dentry->d_name.name, dentry->d_name.len);
++
+ if (!ret) {
++ down(&f->sem);
++ old_dentry->d_inode->i_nlink = ++f->inocache->nlink;
++ up(&f->sem);
+ d_instantiate(dentry, old_dentry->d_inode);
+ atomic_inc(&old_dentry->d_inode->i_count);
+ }
+@@ -517,8 +296,7 @@
+ struct jffs2_full_dnode *fn;
+ struct jffs2_full_dirent *fd;
+ int namelen;
+- __u32 alloclen, phys_ofs;
+- __u32 writtenlen;
++ uint32_t alloclen, phys_ofs;
+ int ret;
+
+ /* FIXME: If you care. We'd need to use frags for the target
+@@ -556,15 +334,16 @@
+
+ f = JFFS2_INODE_INFO(inode);
+
+- inode->i_size = ri->isize = ri->dsize = ri->csize = strlen(target);
+- ri->totlen = sizeof(*ri) + ri->dsize;
+- ri->hdr_crc = crc32(0, ri, sizeof(struct jffs2_unknown_node)-4);
++ inode->i_size = strlen(target);
++ ri->isize = ri->dsize = ri->csize = cpu_to_je32(inode->i_size);
++ ri->totlen = cpu_to_je32(sizeof(*ri) + inode->i_size);
++ ri->hdr_crc = cpu_to_je32(crc32(0, ri, sizeof(struct jffs2_unknown_node)-4));
+
+ ri->compr = JFFS2_COMPR_NONE;
+- ri->data_crc = crc32(0, target, strlen(target));
+- ri->node_crc = crc32(0, ri, sizeof(*ri)-8);
++ ri->data_crc = cpu_to_je32(crc32(0, target, strlen(target)));
++ ri->node_crc = cpu_to_je32(crc32(0, ri, sizeof(*ri)-8));
+
+- fn = jffs2_write_dnode(inode, ri, target, strlen(target), phys_ofs, &writtenlen);
++ fn = jffs2_write_dnode(c, f, ri, target, strlen(target), phys_ofs, ALLOC_NORMAL);
+
+ jffs2_free_raw_inode(ri);
+
+@@ -581,13 +360,6 @@
+ f->metadata = fn;
+ up(&f->sem);
+
+- /* Work out where to put the dirent node now. */
+- writtenlen = (writtenlen+3)&~3;
+- phys_ofs += writtenlen;
+- alloclen -= writtenlen;
+-
+- if (alloclen < sizeof(*rd)+namelen) {
+- /* Not enough space left in this chunk. Get some more */
+ jffs2_complete_reservation(c);
+ ret = jffs2_reserve_space(c, sizeof(*rd)+namelen, &phys_ofs, &alloclen, ALLOC_NORMAL);
+ if (ret) {
+@@ -595,7 +367,6 @@
+ jffs2_clear_inode(inode);
+ return ret;
+ }
+- }
+
+ rd = jffs2_alloc_raw_dirent();
+ if (!rd) {
+@@ -608,41 +379,42 @@
+ dir_f = JFFS2_INODE_INFO(dir_i);
+ down(&dir_f->sem);
+
+- rd->magic = JFFS2_MAGIC_BITMASK;
+- rd->nodetype = JFFS2_NODETYPE_DIRENT;
+- rd->totlen = sizeof(*rd) + namelen;
+- rd->hdr_crc = crc32(0, rd, sizeof(struct jffs2_unknown_node)-4);
+-
+- rd->pino = dir_i->i_ino;
+- rd->version = ++dir_f->highest_version;
+- rd->ino = inode->i_ino;
+- rd->mctime = CURRENT_TIME;
++ rd->magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
++ rd->nodetype = cpu_to_je16(JFFS2_NODETYPE_DIRENT);
++ rd->totlen = cpu_to_je32(sizeof(*rd) + namelen);
++ rd->hdr_crc = cpu_to_je32(crc32(0, rd, sizeof(struct jffs2_unknown_node)-4));
++
++ rd->pino = cpu_to_je32(dir_i->i_ino);
++ rd->version = cpu_to_je32(++dir_f->highest_version);
++ rd->ino = cpu_to_je32(inode->i_ino);
++ rd->mctime = cpu_to_je32(get_seconds());
+ rd->nsize = namelen;
+ rd->type = DT_LNK;
+- rd->node_crc = crc32(0, rd, sizeof(*rd)-8);
+- rd->name_crc = crc32(0, dentry->d_name.name, namelen);
++ rd->node_crc = cpu_to_je32(crc32(0, rd, sizeof(*rd)-8));
++ rd->name_crc = cpu_to_je32(crc32(0, dentry->d_name.name, namelen));
+
+- fd = jffs2_write_dirent(dir_i, rd, dentry->d_name.name, namelen, phys_ofs, &writtenlen);
+-
+- jffs2_complete_reservation(c);
++ fd = jffs2_write_dirent(c, dir_f, rd, dentry->d_name.name, namelen, phys_ofs, ALLOC_NORMAL);
+
+ if (IS_ERR(fd)) {
+ /* dirent failed to write. Delete the inode normally
+ as if it were the final unlink() */
++ jffs2_complete_reservation(c);
+ jffs2_free_raw_dirent(rd);
+ up(&dir_f->sem);
+ jffs2_clear_inode(inode);
+ return PTR_ERR(fd);
+ }
+
+- dir_i->i_mtime = dir_i->i_ctime = rd->mctime;
++ dir_i->i_mtime = dir_i->i_ctime = ITIME(je32_to_cpu(rd->mctime));
+
+ jffs2_free_raw_dirent(rd);
+
+ /* Link the fd into the inode's list, obsoleting an old
+ one if necessary. */
+ jffs2_add_fd_to_list(c, fd, &dir_f->dents);
++
+ up(&dir_f->sem);
++ jffs2_complete_reservation(c);
+
+ d_instantiate(dentry, inode);
+ return 0;
+@@ -659,8 +431,7 @@
+ struct jffs2_full_dnode *fn;
+ struct jffs2_full_dirent *fd;
+ int namelen;
+- __u32 alloclen, phys_ofs;
+- __u32 writtenlen;
++ uint32_t alloclen, phys_ofs;
+ int ret;
+
+ mode |= S_IFDIR;
+@@ -692,13 +463,15 @@
+
+ inode->i_op = &jffs2_dir_inode_operations;
+ inode->i_fop = &jffs2_dir_operations;
++ /* Directories get nlink 2 at start */
++ inode->i_nlink = 2;
+
+ f = JFFS2_INODE_INFO(inode);
+
+- ri->data_crc = 0;
+- ri->node_crc = crc32(0, ri, sizeof(*ri)-8);
++ ri->data_crc = cpu_to_je32(0);
++ ri->node_crc = cpu_to_je32(crc32(0, ri, sizeof(*ri)-8));
+
+- fn = jffs2_write_dnode(inode, ri, NULL, 0, phys_ofs, &writtenlen);
++ fn = jffs2_write_dnode(c, f, ri, NULL, 0, phys_ofs, ALLOC_NORMAL);
+
+ jffs2_free_raw_inode(ri);
+
+@@ -715,13 +488,6 @@
+ f->metadata = fn;
+ up(&f->sem);
+
+- /* Work out where to put the dirent node now. */
+- writtenlen = PAD(writtenlen);
+- phys_ofs += writtenlen;
+- alloclen -= writtenlen;
+-
+- if (alloclen < sizeof(*rd)+namelen) {
+- /* Not enough space left in this chunk. Get some more */
+ jffs2_complete_reservation(c);
+ ret = jffs2_reserve_space(c, sizeof(*rd)+namelen, &phys_ofs, &alloclen, ALLOC_NORMAL);
+ if (ret) {
+@@ -729,7 +495,6 @@
+ jffs2_clear_inode(inode);
+ return ret;
+ }
+- }
+
+ rd = jffs2_alloc_raw_dirent();
+ if (!rd) {
+@@ -742,41 +507,43 @@
+ dir_f = JFFS2_INODE_INFO(dir_i);
+ down(&dir_f->sem);
+
+- rd->magic = JFFS2_MAGIC_BITMASK;
+- rd->nodetype = JFFS2_NODETYPE_DIRENT;
+- rd->totlen = sizeof(*rd) + namelen;
+- rd->hdr_crc = crc32(0, rd, sizeof(struct jffs2_unknown_node)-4);
+-
+- rd->pino = dir_i->i_ino;
+- rd->version = ++dir_f->highest_version;
+- rd->ino = inode->i_ino;
+- rd->mctime = CURRENT_TIME;
++ rd->magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
++ rd->nodetype = cpu_to_je16(JFFS2_NODETYPE_DIRENT);
++ rd->totlen = cpu_to_je32(sizeof(*rd) + namelen);
++ rd->hdr_crc = cpu_to_je32(crc32(0, rd, sizeof(struct jffs2_unknown_node)-4));
++
++ rd->pino = cpu_to_je32(dir_i->i_ino);
++ rd->version = cpu_to_je32(++dir_f->highest_version);
++ rd->ino = cpu_to_je32(inode->i_ino);
++ rd->mctime = cpu_to_je32(get_seconds());
+ rd->nsize = namelen;
+ rd->type = DT_DIR;
+- rd->node_crc = crc32(0, rd, sizeof(*rd)-8);
+- rd->name_crc = crc32(0, dentry->d_name.name, namelen);
++ rd->node_crc = cpu_to_je32(crc32(0, rd, sizeof(*rd)-8));
++ rd->name_crc = cpu_to_je32(crc32(0, dentry->d_name.name, namelen));
+
+- fd = jffs2_write_dirent(dir_i, rd, dentry->d_name.name, namelen, phys_ofs, &writtenlen);
+-
+- jffs2_complete_reservation(c);
++ fd = jffs2_write_dirent(c, dir_f, rd, dentry->d_name.name, namelen, phys_ofs, ALLOC_NORMAL);
+
+ if (IS_ERR(fd)) {
+ /* dirent failed to write. Delete the inode normally
+ as if it were the final unlink() */
++ jffs2_complete_reservation(c);
+ jffs2_free_raw_dirent(rd);
+ up(&dir_f->sem);
+ jffs2_clear_inode(inode);
+ return PTR_ERR(fd);
+ }
+
+- dir_i->i_mtime = dir_i->i_ctime = rd->mctime;
++ dir_i->i_mtime = dir_i->i_ctime = ITIME(je32_to_cpu(rd->mctime));
++ dir_i->i_nlink++;
+
+ jffs2_free_raw_dirent(rd);
+
+ /* Link the fd into the inode's list, obsoleting an old
+ one if necessary. */
+ jffs2_add_fd_to_list(c, fd, &dir_f->dents);
++
+ up(&dir_f->sem);
++ jffs2_complete_reservation(c);
+
+ d_instantiate(dentry, inode);
+ return 0;
+@@ -786,15 +553,19 @@
+ {
+ struct jffs2_inode_info *f = JFFS2_INODE_INFO(dentry->d_inode);
+ struct jffs2_full_dirent *fd;
++ int ret;
+
+ for (fd = f->dents ; fd; fd = fd->next) {
+ if (fd->ino)
+ return -ENOTEMPTY;
+ }
+- return jffs2_unlink(dir_i, dentry);
++ ret = jffs2_unlink(dir_i, dentry);
++ if (!ret)
++ dir_i->i_nlink--;
++ return ret;
+ }
+
+-static int jffs2_mknod (struct inode *dir_i, struct dentry *dentry, int mode, int rdev)
++static int jffs2_mknod (struct inode *dir_i, struct dentry *dentry, int mode, mknod_arg_t rdev)
+ {
+ struct jffs2_inode_info *f, *dir_f;
+ struct jffs2_sb_info *c;
+@@ -804,12 +575,14 @@
+ struct jffs2_full_dnode *fn;
+ struct jffs2_full_dirent *fd;
+ int namelen;
+- unsigned short dev;
++ jint16_t dev;
+ int devlen = 0;
+- __u32 alloclen, phys_ofs;
+- __u32 writtenlen;
++ uint32_t alloclen, phys_ofs;
+ int ret;
+
++ if (!old_valid_dev(rdev))
++ return -EINVAL;
++
+ ri = jffs2_alloc_raw_inode();
+ if (!ri)
+ return -ENOMEM;
+@@ -817,7 +590,7 @@
+ c = JFFS2_SB_INFO(dir_i->i_sb);
+
+ if (S_ISBLK(mode) || S_ISCHR(mode)) {
+- dev = (MAJOR(to_kdev_t(rdev)) << 8) | MINOR(to_kdev_t(rdev));
++ dev = cpu_to_je16(old_encode_dev(rdev));
+ devlen = sizeof(dev);
+ }
+
+@@ -844,15 +617,15 @@
+
+ f = JFFS2_INODE_INFO(inode);
+
+- ri->dsize = ri->csize = devlen;
+- ri->totlen = sizeof(*ri) + ri->csize;
+- ri->hdr_crc = crc32(0, ri, sizeof(struct jffs2_unknown_node)-4);
++ ri->dsize = ri->csize = cpu_to_je32(devlen);
++ ri->totlen = cpu_to_je32(sizeof(*ri) + devlen);
++ ri->hdr_crc = cpu_to_je32(crc32(0, ri, sizeof(struct jffs2_unknown_node)-4));
+
+ ri->compr = JFFS2_COMPR_NONE;
+- ri->data_crc = crc32(0, &dev, devlen);
+- ri->node_crc = crc32(0, ri, sizeof(*ri)-8);
++ ri->data_crc = cpu_to_je32(crc32(0, &dev, devlen));
++ ri->node_crc = cpu_to_je32(crc32(0, ri, sizeof(*ri)-8));
+
+- fn = jffs2_write_dnode(inode, ri, (char *)&dev, devlen, phys_ofs, &writtenlen);
++ fn = jffs2_write_dnode(c, f, ri, (char *)&dev, devlen, phys_ofs, ALLOC_NORMAL);
+
+ jffs2_free_raw_inode(ri);
+
+@@ -869,13 +642,6 @@
+ f->metadata = fn;
+ up(&f->sem);
+
+- /* Work out where to put the dirent node now. */
+- writtenlen = (writtenlen+3)&~3;
+- phys_ofs += writtenlen;
+- alloclen -= writtenlen;
+-
+- if (alloclen < sizeof(*rd)+namelen) {
+- /* Not enough space left in this chunk. Get some more */
+ jffs2_complete_reservation(c);
+ ret = jffs2_reserve_space(c, sizeof(*rd)+namelen, &phys_ofs, &alloclen, ALLOC_NORMAL);
+ if (ret) {
+@@ -883,7 +649,6 @@
+ jffs2_clear_inode(inode);
+ return ret;
+ }
+- }
+
+ rd = jffs2_alloc_raw_dirent();
+ if (!rd) {
+@@ -896,44 +661,45 @@
+ dir_f = JFFS2_INODE_INFO(dir_i);
+ down(&dir_f->sem);
+
+- rd->magic = JFFS2_MAGIC_BITMASK;
+- rd->nodetype = JFFS2_NODETYPE_DIRENT;
+- rd->totlen = sizeof(*rd) + namelen;
+- rd->hdr_crc = crc32(0, rd, sizeof(struct jffs2_unknown_node)-4);
+-
+- rd->pino = dir_i->i_ino;
+- rd->version = ++dir_f->highest_version;
+- rd->ino = inode->i_ino;
+- rd->mctime = CURRENT_TIME;
++ rd->magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
++ rd->nodetype = cpu_to_je16(JFFS2_NODETYPE_DIRENT);
++ rd->totlen = cpu_to_je32(sizeof(*rd) + namelen);
++ rd->hdr_crc = cpu_to_je32(crc32(0, rd, sizeof(struct jffs2_unknown_node)-4));
++
++ rd->pino = cpu_to_je32(dir_i->i_ino);
++ rd->version = cpu_to_je32(++dir_f->highest_version);
++ rd->ino = cpu_to_je32(inode->i_ino);
++ rd->mctime = cpu_to_je32(get_seconds());
+ rd->nsize = namelen;
+
+ /* XXX: This is ugly. */
+ rd->type = (mode & S_IFMT) >> 12;
+
+- rd->node_crc = crc32(0, rd, sizeof(*rd)-8);
+- rd->name_crc = crc32(0, dentry->d_name.name, namelen);
+-
+- fd = jffs2_write_dirent(dir_i, rd, dentry->d_name.name, namelen, phys_ofs, &writtenlen);
++ rd->node_crc = cpu_to_je32(crc32(0, rd, sizeof(*rd)-8));
++ rd->name_crc = cpu_to_je32(crc32(0, dentry->d_name.name, namelen));
+
+- jffs2_complete_reservation(c);
++ fd = jffs2_write_dirent(c, dir_f, rd, dentry->d_name.name, namelen, phys_ofs, ALLOC_NORMAL);
+
+ if (IS_ERR(fd)) {
+ /* dirent failed to write. Delete the inode normally
+ as if it were the final unlink() */
++ jffs2_complete_reservation(c);
+ jffs2_free_raw_dirent(rd);
+ up(&dir_f->sem);
+ jffs2_clear_inode(inode);
+ return PTR_ERR(fd);
+ }
+
+- dir_i->i_mtime = dir_i->i_ctime = rd->mctime;
++ dir_i->i_mtime = dir_i->i_ctime = ITIME(je32_to_cpu(rd->mctime));
+
+ jffs2_free_raw_dirent(rd);
+
+ /* Link the fd into the inode's list, obsoleting an old
+ one if necessary. */
+ jffs2_add_fd_to_list(c, fd, &dir_f->dents);
++
+ up(&dir_f->sem);
++ jffs2_complete_reservation(c);
+
+ d_instantiate(dentry, inode);
+
+@@ -944,7 +710,9 @@
+ struct inode *new_dir_i, struct dentry *new_dentry)
+ {
+ int ret;
++ struct jffs2_sb_info *c = JFFS2_SB_INFO(old_dir_i->i_sb);
+ struct jffs2_inode_info *victim_f = NULL;
++ uint8_t type;
+
+ /* The VFS will check for us and prevent trying to rename a
+ * file over a directory and vice versa, but if it's a directory,
+@@ -973,7 +741,15 @@
+ */
+
+ /* Make a hard link */
+- ret = jffs2_do_link(old_dentry, new_dir_i, new_dentry, 1);
++
++ /* XXX: This is ugly */
++ type = (old_dentry->d_inode->i_mode & S_IFMT) >> 12;
++ if (!type) type = DT_REG;
++
++ ret = jffs2_do_link(c, JFFS2_INODE_INFO(new_dir_i),
++ old_dentry->d_inode->i_ino, type,
++ new_dentry->d_name.name, new_dentry->d_name.len);
++
+ if (ret)
+ return ret;
+
+@@ -989,22 +765,36 @@
+ }
+ }
+
++ /* If it was a directory we moved, and there was no victim,
++ increase i_nlink on its new parent */
++ if (S_ISDIR(old_dentry->d_inode->i_mode) && !victim_f)
++ new_dir_i->i_nlink++;
++
+ /* Unlink the original */
+- ret = jffs2_do_unlink(old_dir_i, old_dentry, 1);
++ ret = jffs2_do_unlink(c, JFFS2_INODE_INFO(old_dir_i),
++ old_dentry->d_name.name, old_dentry->d_name.len, NULL);
++
++ /* We don't touch inode->i_nlink */
+
+ if (ret) {
+ /* Oh shit. We really ought to make a single node which can do both atomically */
+ struct jffs2_inode_info *f = JFFS2_INODE_INFO(old_dentry->d_inode);
+ down(&f->sem);
++ old_dentry->d_inode->i_nlink++;
+ if (f->inocache)
+- old_dentry->d_inode->i_nlink = f->inocache->nlink++;
++ f->inocache->nlink++;
+ up(&f->sem);
+
+ printk(KERN_NOTICE "jffs2_rename(): Link succeeded, unlink failed (err %d). You now have a hard link\n", ret);
+ /* Might as well let the VFS know */
+ d_instantiate(new_dentry, old_dentry->d_inode);
+ atomic_inc(&old_dentry->d_inode->i_count);
+- }
+ return ret;
++ }
++
++ if (S_ISDIR(old_dentry->d_inode->i_mode))
++ old_dir_i->i_nlink--;
++
++ return 0;
+ }
+
+diff -Nurb linux-mips-2.4.27/fs/jffs2/erase.c linux/fs/jffs2/erase.c
+--- linux-mips-2.4.27/fs/jffs2/erase.c 2003-11-17 02:07:44.000000000 +0100
++++ linux/fs/jffs2/erase.c 2004-11-19 10:25:12.099169392 +0100
+@@ -1,68 +1,60 @@
+ /*
+ * JFFS2 -- Journalling Flash File System, Version 2.
+ *
+- * Copyright (C) 2001 Red Hat, Inc.
++ * Copyright (C) 2001-2003 Red Hat, Inc.
+ *
+- * Created by David Woodhouse <dwmw2@cambridge.redhat.com>
++ * Created by David Woodhouse <dwmw2@redhat.com>
+ *
+- * The original JFFS, from which the design for JFFS2 was derived,
+- * was designed and implemented by Axis Communications AB.
++ * For licensing information, see the file 'LICENCE' in this directory.
+ *
+- * The contents of this file are subject to the Red Hat eCos Public
+- * License Version 1.1 (the "Licence"); you may not use this file
+- * except in compliance with the Licence. You may obtain a copy of
+- * the Licence at http://www.redhat.com/
+- *
+- * Software distributed under the Licence is distributed on an "AS IS"
+- * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
+- * See the Licence for the specific language governing rights and
+- * limitations under the Licence.
+- *
+- * The Original Code is JFFS2 - Journalling Flash File System, version 2
+- *
+- * Alternatively, the contents of this file may be used under the
+- * terms of the GNU General Public License version 2 (the "GPL"), in
+- * which case the provisions of the GPL are applicable instead of the
+- * above. If you wish to allow the use of your version of this file
+- * only under the terms of the GPL and not to allow others to use your
+- * version of this file under the RHEPL, indicate your decision by
+- * deleting the provisions above and replace them with the notice and
+- * other provisions required by the GPL. If you do not delete the
+- * provisions above, a recipient may use your version of this file
+- * under either the RHEPL or the GPL.
+- *
+- * $Id: erase.c,v 1.24.2.1 2003/11/02 13:51:17 dwmw2 Exp $
++ * $Id: erase.c,v 1.58 2003/11/26 13:02:46 dwmw2 Exp $
+ *
+ */
++
+ #include <linux/kernel.h>
+ #include <linux/slab.h>
+ #include <linux/mtd/mtd.h>
+-#include <linux/jffs2.h>
+-#include <linux/interrupt.h>
+-#include "nodelist.h"
++#include <linux/compiler.h>
+ #include <linux/crc32.h>
++#include <linux/sched.h>
++#include <linux/pagemap.h>
++#include "nodelist.h"
+
+ struct erase_priv_struct {
+ struct jffs2_eraseblock *jeb;
+ struct jffs2_sb_info *c;
+ };
+
++#ifndef __ECOS
+ static void jffs2_erase_callback(struct erase_info *);
++#endif
++static void jffs2_erase_failed(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb);
++static void jffs2_erase_succeeded(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb);
+ static void jffs2_free_all_node_refs(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb);
++static void jffs2_mark_erased_block(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb);
+
+ void jffs2_erase_block(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb)
+ {
+- struct erase_info *instr;
+ int ret;
++#ifdef __ECOS
++ ret = jffs2_flash_erase(c, jeb);
++ if (!ret) {
++ jffs2_erase_succeeded(c, jeb);
++ return;
++ }
++#else /* Linux */
++ struct erase_info *instr;
+
+ instr = kmalloc(sizeof(struct erase_info) + sizeof(struct erase_priv_struct), GFP_KERNEL);
+ if (!instr) {
+ printk(KERN_WARNING "kmalloc for struct erase_info in jffs2_erase_block failed. Refiling block for later\n");
+- spin_lock_bh(&c->erase_completion_lock);
++ spin_lock(&c->erase_completion_lock);
+ list_del(&jeb->list);
+ list_add(&jeb->list, &c->erase_pending_list);
+ c->erasing_size -= c->sector_size;
+- spin_unlock_bh(&c->erase_completion_lock);
++ c->dirty_size += c->sector_size;
++ jeb->dirty_size = c->sector_size;
++ spin_unlock(&c->erase_completion_lock);
+ return;
+ }
+
+@@ -77,19 +69,27 @@
+ ((struct erase_priv_struct *)instr->priv)->jeb = jeb;
+ ((struct erase_priv_struct *)instr->priv)->c = c;
+
++ /* NAND , read out the fail counter, if possible */
++ if (!jffs2_can_mark_obsolete(c))
++ jffs2_nand_read_failcnt(c,jeb);
++
+ ret = c->mtd->erase(c->mtd, instr);
+- if (!ret) {
++ if (!ret)
+ return;
+- }
++
++ kfree(instr);
++#endif /* __ECOS */
++
+ if (ret == -ENOMEM || ret == -EAGAIN) {
+ /* Erase failed immediately. Refile it on the list */
+ D1(printk(KERN_DEBUG "Erase at 0x%08x failed: %d. Refiling on erase_pending_list\n", jeb->offset, ret));
+- spin_lock_bh(&c->erase_completion_lock);
++ spin_lock(&c->erase_completion_lock);
+ list_del(&jeb->list);
+ list_add(&jeb->list, &c->erase_pending_list);
+ c->erasing_size -= c->sector_size;
+- spin_unlock_bh(&c->erase_completion_lock);
+- kfree(instr);
++ c->dirty_size += c->sector_size;
++ jeb->dirty_size = c->sector_size;
++ spin_unlock(&c->erase_completion_lock);
+ return;
+ }
+
+@@ -97,74 +97,101 @@
+ printk(KERN_WARNING "Erase at 0x%08x failed immediately: -EROFS. Is the sector locked?\n", jeb->offset);
+ else
+ printk(KERN_WARNING "Erase at 0x%08x failed immediately: errno %d\n", jeb->offset, ret);
+- spin_lock_bh(&c->erase_completion_lock);
+- list_del(&jeb->list);
+- list_add(&jeb->list, &c->bad_list);
+- c->nr_erasing_blocks--;
+- c->bad_size += c->sector_size;
+- c->erasing_size -= c->sector_size;
+- spin_unlock_bh(&c->erase_completion_lock);
+- wake_up(&c->erase_wait);
+- kfree(instr);
++
++ jffs2_erase_failed(c, jeb);
+ }
+
+-void jffs2_erase_pending_blocks(struct jffs2_sb_info *c)
++void jffs2_erase_pending_blocks(struct jffs2_sb_info *c, int count)
+ {
+ struct jffs2_eraseblock *jeb;
+
+- spin_lock_bh(&c->erase_completion_lock);
+- while (!list_empty(&c->erase_pending_list)) {
++ down(&c->erase_free_sem);
+
+- jeb = list_entry(c->erase_pending_list.next, struct jffs2_eraseblock, list);
++ spin_lock(&c->erase_completion_lock);
+
+- D1(printk(KERN_DEBUG "Starting erase of pending block 0x%08x\n", jeb->offset));
++ while (!list_empty(&c->erase_complete_list) ||
++ !list_empty(&c->erase_pending_list)) {
+
++ if (!list_empty(&c->erase_complete_list)) {
++ jeb = list_entry(c->erase_complete_list.next, struct jffs2_eraseblock, list);
++ list_del(&jeb->list);
++ spin_unlock(&c->erase_completion_lock);
++ jffs2_mark_erased_block(c, jeb);
++
++ if (!--count) {
++ D1(printk(KERN_DEBUG "Count reached. jffs2_erase_pending_blocks leaving\n"));
++ goto done;
++ }
++
++ } else if (!list_empty(&c->erase_pending_list)) {
++ jeb = list_entry(c->erase_pending_list.next, struct jffs2_eraseblock, list);
++ D1(printk(KERN_DEBUG "Starting erase of pending block 0x%08x\n", jeb->offset));
+ list_del(&jeb->list);
+ c->erasing_size += c->sector_size;
++ c->wasted_size -= jeb->wasted_size;
+ c->free_size -= jeb->free_size;
+ c->used_size -= jeb->used_size;
+ c->dirty_size -= jeb->dirty_size;
+- jeb->used_size = jeb->dirty_size = jeb->free_size = 0;
++ jeb->wasted_size = jeb->used_size = jeb->dirty_size = jeb->free_size = 0;
+ jffs2_free_all_node_refs(c, jeb);
+ list_add(&jeb->list, &c->erasing_list);
+- spin_unlock_bh(&c->erase_completion_lock);
++ spin_unlock(&c->erase_completion_lock);
+
+ jffs2_erase_block(c, jeb);
++
++ } else {
++ BUG();
++ }
++
+ /* Be nice */
+- if (current->need_resched)
+- schedule();
+- spin_lock_bh(&c->erase_completion_lock);
++ cond_resched();
++ spin_lock(&c->erase_completion_lock);
+ }
+- spin_unlock_bh(&c->erase_completion_lock);
++
++ spin_unlock(&c->erase_completion_lock);
++ done:
+ D1(printk(KERN_DEBUG "jffs2_erase_pending_blocks completed\n"));
++
++ up(&c->erase_free_sem);
++}
++
++static void jffs2_erase_succeeded(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb)
++{
++ D1(printk(KERN_DEBUG "Erase completed successfully at 0x%08x\n", jeb->offset));
++ spin_lock(&c->erase_completion_lock);
++ list_del(&jeb->list);
++ list_add_tail(&jeb->list, &c->erase_complete_list);
++ spin_unlock(&c->erase_completion_lock);
++ /* Ensure that kupdated calls us again to mark them clean */
++ jffs2_erase_pending_trigger(c);
+ }
+
++static void jffs2_erase_failed(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb)
++{
++ spin_lock(&c->erase_completion_lock);
++ c->erasing_size -= c->sector_size;
++ c->bad_size += c->sector_size;
++ list_del(&jeb->list);
++ list_add(&jeb->list, &c->bad_list);
++ c->nr_erasing_blocks--;
++ spin_unlock(&c->erase_completion_lock);
++ wake_up(&c->erase_wait);
++}
+
++#ifndef __ECOS
+ static void jffs2_erase_callback(struct erase_info *instr)
+ {
+ struct erase_priv_struct *priv = (void *)instr->priv;
+
+ if(instr->state != MTD_ERASE_DONE) {
+ printk(KERN_WARNING "Erase at 0x%08x finished, but state != MTD_ERASE_DONE. State is 0x%x instead.\n", instr->addr, instr->state);
+- spin_lock(&priv->c->erase_completion_lock);
+- priv->c->erasing_size -= priv->c->sector_size;
+- priv->c->bad_size += priv->c->sector_size;
+- list_del(&priv->jeb->list);
+- list_add(&priv->jeb->list, &priv->c->bad_list);
+- priv->c->nr_erasing_blocks--;
+- spin_unlock(&priv->c->erase_completion_lock);
+- wake_up(&priv->c->erase_wait);
++ jffs2_erase_failed(priv->c, priv->jeb);
+ } else {
+- D1(printk(KERN_DEBUG "Erase completed successfully at 0x%08x\n", instr->addr));
+- spin_lock(&priv->c->erase_completion_lock);
+- list_del(&priv->jeb->list);
+- list_add_tail(&priv->jeb->list, &priv->c->erase_complete_list);
+- spin_unlock(&priv->c->erase_completion_lock);
++ jffs2_erase_succeeded(priv->c, priv->jeb);
+ }
+- /* Make sure someone picks up the block off the erase_complete list */
+- OFNI_BS_2SFFJ(priv->c)->s_dirt = 1;
+ kfree(instr);
+ }
++#endif /* !__ECOS */
+
+ /* Hmmm. Maybe we should accept the extra space it takes and make
+ this a standard doubly-linked list? */
+@@ -221,7 +248,7 @@
+ this = ic->nodes;
+
+ while(this) {
+- printk( "0x%08x(%d)->", this->flash_offset & ~3, this->flash_offset &3);
++ printk( "0x%08x(%d)->", ref_offset(this), ref_flags(this));
+ if (++i == 5) {
+ printk("\n" KERN_DEBUG);
+ i=0;
+@@ -256,54 +283,43 @@
+ jeb->last_node = NULL;
+ }
+
+-void jffs2_erase_pending_trigger(struct jffs2_sb_info *c)
++static void jffs2_mark_erased_block(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb)
+ {
+- OFNI_BS_2SFFJ(c)->s_dirt = 1;
+-}
+-
+-void jffs2_mark_erased_blocks(struct jffs2_sb_info *c)
+-{
+- static struct jffs2_unknown_node marker = {JFFS2_MAGIC_BITMASK, JFFS2_NODETYPE_CLEANMARKER, sizeof(struct jffs2_unknown_node)};
+- struct jffs2_eraseblock *jeb;
+- struct jffs2_raw_node_ref *marker_ref;
++ struct jffs2_raw_node_ref *marker_ref = NULL;
+ unsigned char *ebuf;
+- ssize_t retlen;
++ size_t retlen;
+ int ret;
+
+- marker.hdr_crc = crc32(0, &marker, sizeof(struct jffs2_unknown_node)-4);
+-
+- spin_lock_bh(&c->erase_completion_lock);
+- while (!list_empty(&c->erase_complete_list)) {
+- jeb = list_entry(c->erase_complete_list.next, struct jffs2_eraseblock, list);
+- list_del(&jeb->list);
+- spin_unlock_bh(&c->erase_completion_lock);
+-
++ if (!jffs2_cleanmarker_oob(c)) {
+ marker_ref = jffs2_alloc_raw_node_ref();
+ if (!marker_ref) {
+ printk(KERN_WARNING "Failed to allocate raw node ref for clean marker\n");
+- /* Come back later */
++ /* Stick it back on the list from whence it came and come back later */
+ jffs2_erase_pending_trigger(c);
++ spin_lock(&c->erase_completion_lock);
++ list_add(&jeb->list, &c->erase_complete_list);
++ spin_unlock(&c->erase_completion_lock);
+ return;
+ }
+-
++ }
+ ebuf = kmalloc(PAGE_SIZE, GFP_KERNEL);
+ if (!ebuf) {
+ printk(KERN_WARNING "Failed to allocate page buffer for verifying erase at 0x%08x. Assuming it worked\n", jeb->offset);
+ } else {
+- __u32 ofs = jeb->offset;
++ uint32_t ofs = jeb->offset;
+
+ D1(printk(KERN_DEBUG "Verifying erase at 0x%08x\n", jeb->offset));
+ while(ofs < jeb->offset + c->sector_size) {
+- __u32 readlen = min((__u32)PAGE_SIZE, jeb->offset + c->sector_size - ofs);
++ uint32_t readlen = min((uint32_t)PAGE_SIZE, jeb->offset + c->sector_size - ofs);
+ int i;
+
+- ret = c->mtd->read(c->mtd, ofs, readlen, &retlen, ebuf);
+- if (ret < 0) {
++ ret = jffs2_flash_read(c, ofs, readlen, &retlen, ebuf);
++ if (ret) {
+ printk(KERN_WARNING "Read of newly-erased block at 0x%08x failed: %d. Putting on bad_list\n", ofs, ret);
+ goto bad;
+ }
+ if (retlen != readlen) {
+- printk(KERN_WARNING "Short read from newly-erased block at 0x%08x. Wanted %d, got %d\n", ofs, readlen, retlen);
++ printk(KERN_WARNING "Short read from newly-erased block at 0x%08x. Wanted %d, got %zd\n", ofs, readlen, retlen);
+ goto bad;
+ }
+ for (i=0; i<readlen; i += sizeof(unsigned long)) {
+@@ -312,62 +328,89 @@
+ if (datum + 1) {
+ printk(KERN_WARNING "Newly-erased block contained word 0x%lx at offset 0x%08x\n", datum, ofs + i);
+ bad:
++ if (!jffs2_cleanmarker_oob(c))
+ jffs2_free_raw_node_ref(marker_ref);
++ else
++ jffs2_write_nand_badblock( c ,jeb );
+ kfree(ebuf);
+ bad2:
+- spin_lock_bh(&c->erase_completion_lock);
++ spin_lock(&c->erase_completion_lock);
+ c->erasing_size -= c->sector_size;
+ c->bad_size += c->sector_size;
+
+ list_add_tail(&jeb->list, &c->bad_list);
+ c->nr_erasing_blocks--;
+- spin_unlock_bh(&c->erase_completion_lock);
++ spin_unlock(&c->erase_completion_lock);
+ wake_up(&c->erase_wait);
+ return;
+ }
+ }
+ ofs += readlen;
++ cond_resched();
+ }
+ kfree(ebuf);
+ }
+
+ /* Write the erase complete marker */
+ D1(printk(KERN_DEBUG "Writing erased marker to block at 0x%08x\n", jeb->offset));
+- ret = c->mtd->write(c->mtd, jeb->offset, sizeof(marker), &retlen, (char *)&marker);
++ if (jffs2_cleanmarker_oob(c)) {
++
++ if (jffs2_write_nand_cleanmarker(c, jeb))
++ goto bad2;
++
++ jeb->first_node = jeb->last_node = NULL;
++
++ jeb->free_size = c->sector_size;
++ jeb->used_size = 0;
++ jeb->dirty_size = 0;
++ jeb->wasted_size = 0;
++ } else {
++ struct jffs2_unknown_node marker = {
++ .magic = cpu_to_je16(JFFS2_MAGIC_BITMASK),
++ .nodetype = cpu_to_je16(JFFS2_NODETYPE_CLEANMARKER),
++ .totlen = cpu_to_je32(c->cleanmarker_size)
++ };
++
++ marker.hdr_crc = cpu_to_je32(crc32(0, &marker, sizeof(struct jffs2_unknown_node)-4));
++
++ /* We only write the header; the rest was noise or padding anyway */
++ ret = jffs2_flash_write(c, jeb->offset, sizeof(marker), &retlen, (char *)&marker);
+ if (ret) {
+ printk(KERN_WARNING "Write clean marker to block at 0x%08x failed: %d\n",
+ jeb->offset, ret);
+ goto bad2;
+ }
+ if (retlen != sizeof(marker)) {
+- printk(KERN_WARNING "Short write to newly-erased block at 0x%08x: Wanted %d, got %d\n",
++ printk(KERN_WARNING "Short write to newly-erased block at 0x%08x: Wanted %d, got %zd\n",
+ jeb->offset, sizeof(marker), retlen);
+ goto bad2;
+ }
+
+ marker_ref->next_in_ino = NULL;
+ marker_ref->next_phys = NULL;
+- marker_ref->flash_offset = jeb->offset;
+- marker_ref->totlen = PAD(sizeof(marker));
++ marker_ref->flash_offset = jeb->offset | REF_NORMAL;
++ marker_ref->__totlen = c->cleanmarker_size;
+
+ jeb->first_node = jeb->last_node = marker_ref;
+
+- jeb->free_size = c->sector_size - marker_ref->totlen;
+- jeb->used_size = marker_ref->totlen;
++ jeb->free_size = c->sector_size - c->cleanmarker_size;
++ jeb->used_size = c->cleanmarker_size;
+ jeb->dirty_size = 0;
++ jeb->wasted_size = 0;
++ }
+
+- spin_lock_bh(&c->erase_completion_lock);
++ spin_lock(&c->erase_completion_lock);
+ c->erasing_size -= c->sector_size;
+ c->free_size += jeb->free_size;
+ c->used_size += jeb->used_size;
+
+ ACCT_SANITY_CHECK(c,jeb);
+- ACCT_PARANOIA_CHECK(jeb);
++ D1(ACCT_PARANOIA_CHECK(jeb));
+
+ list_add_tail(&jeb->list, &c->free_list);
+ c->nr_erasing_blocks--;
+ c->nr_free_blocks++;
++ spin_unlock(&c->erase_completion_lock);
+ wake_up(&c->erase_wait);
+- }
+- spin_unlock_bh(&c->erase_completion_lock);
+ }
++
+diff -Nurb linux-mips-2.4.27/fs/jffs2/file.c linux/fs/jffs2/file.c
+--- linux-mips-2.4.27/fs/jffs2/file.c 2003-11-17 02:07:44.000000000 +0100
++++ linux/fs/jffs2/file.c 2004-11-19 10:25:12.101169088 +0100
+@@ -1,319 +1,106 @@
+ /*
+ * JFFS2 -- Journalling Flash File System, Version 2.
+ *
+- * Copyright (C) 2001 Red Hat, Inc.
++ * Copyright (C) 2001-2003 Red Hat, Inc.
+ *
+- * Created by David Woodhouse <dwmw2@cambridge.redhat.com>
++ * Created by David Woodhouse <dwmw2@redhat.com>
+ *
+- * The original JFFS, from which the design for JFFS2 was derived,
+- * was designed and implemented by Axis Communications AB.
++ * For licensing information, see the file 'LICENCE' in this directory.
+ *
+- * The contents of this file are subject to the Red Hat eCos Public
+- * License Version 1.1 (the "Licence"); you may not use this file
+- * except in compliance with the Licence. You may obtain a copy of
+- * the Licence at http://www.redhat.com/
+- *
+- * Software distributed under the Licence is distributed on an "AS IS"
+- * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
+- * See the Licence for the specific language governing rights and
+- * limitations under the Licence.
+- *
+- * The Original Code is JFFS2 - Journalling Flash File System, version 2
+- *
+- * Alternatively, the contents of this file may be used under the
+- * terms of the GNU General Public License version 2 (the "GPL"), in
+- * which case the provisions of the GPL are applicable instead of the
+- * above. If you wish to allow the use of your version of this file
+- * only under the terms of the GPL and not to allow others to use your
+- * version of this file under the RHEPL, indicate your decision by
+- * deleting the provisions above and replace them with the notice and
+- * other provisions required by the GPL. If you do not delete the
+- * provisions above, a recipient may use your version of this file
+- * under either the RHEPL or the GPL.
+- *
+- * $Id: file.c,v 1.58.2.7 2003/11/02 13:51:17 dwmw2 Exp $
++ * $Id: file.c,v 1.97 2003/11/02 08:52:35 dwmw2 Exp $
+ *
+ */
+
++#include <linux/version.h>
+ #include <linux/kernel.h>
+-#include <linux/mtd/compatmac.h> /* for min() */
+ #include <linux/slab.h>
+ #include <linux/fs.h>
++#include <linux/time.h>
+ #include <linux/pagemap.h>
++#include <linux/highmem.h>
++#include <linux/crc32.h>
+ #include <linux/jffs2.h>
+ #include "nodelist.h"
+-#include <linux/crc32.h>
+
+ extern int generic_file_open(struct inode *, struct file *) __attribute__((weak));
+ extern loff_t generic_file_llseek(struct file *file, loff_t offset, int origin) __attribute__((weak));
+
+
+-int jffs2_null_fsync(struct file *filp, struct dentry *dentry, int datasync)
++int jffs2_fsync(struct file *filp, struct dentry *dentry, int datasync)
+ {
+- /* Move along. Nothing to see here */
++ struct inode *inode = dentry->d_inode;
++ struct jffs2_sb_info *c = JFFS2_SB_INFO(inode->i_sb);
++
++ /* Trigger GC to flush any pending writes for this inode */
++ jffs2_flush_wbuf_gc(c, inode->i_ino);
++
+ return 0;
+ }
+
+ struct file_operations jffs2_file_operations =
+ {
+- llseek: generic_file_llseek,
+- open: generic_file_open,
+- read: generic_file_read,
+- write: generic_file_write,
+- ioctl: jffs2_ioctl,
+- mmap: generic_file_mmap,
+- fsync: jffs2_null_fsync
++ .llseek = generic_file_llseek,
++ .open = generic_file_open,
++ .read = generic_file_read,
++ .write = generic_file_write,
++ .ioctl = jffs2_ioctl,
++ .mmap = generic_file_readonly_mmap,
++ .fsync = jffs2_fsync,
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,29)
++ .sendfile = generic_file_sendfile
++#endif
+ };
+
+ /* jffs2_file_inode_operations */
+
+ struct inode_operations jffs2_file_inode_operations =
+ {
+- setattr: jffs2_setattr
++ .setattr = jffs2_setattr
+ };
+
+ struct address_space_operations jffs2_file_address_operations =
+ {
+- readpage: jffs2_readpage,
+- prepare_write: jffs2_prepare_write,
+- commit_write: jffs2_commit_write
++ .readpage = jffs2_readpage,
++ .prepare_write =jffs2_prepare_write,
++ .commit_write = jffs2_commit_write
+ };
+
+-int jffs2_setattr (struct dentry *dentry, struct iattr *iattr)
+-{
+- struct jffs2_full_dnode *old_metadata, *new_metadata;
+- struct inode *inode = dentry->d_inode;
+- struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode);
+- struct jffs2_sb_info *c = JFFS2_SB_INFO(inode->i_sb);
+- struct jffs2_raw_inode *ri;
+- unsigned short dev;
+- unsigned char *mdata = NULL;
+- int mdatalen = 0;
+- unsigned int ivalid;
+- __u32 phys_ofs, alloclen;
+- int ret;
+- D1(printk(KERN_DEBUG "jffs2_setattr(): ino #%lu\n", inode->i_ino));
+- ret = inode_change_ok(inode, iattr);
+- if (ret)
+- return ret;
+-
+- /* Special cases - we don't want more than one data node
+- for these types on the medium at any time. So setattr
+- must read the original data associated with the node
+- (i.e. the device numbers or the target name) and write
+- it out again with the appropriate data attached */
+- if (S_ISBLK(inode->i_mode) || S_ISCHR(inode->i_mode)) {
+- /* For these, we don't actually need to read the old node */
+- dev = (MAJOR(to_kdev_t(dentry->d_inode->i_rdev)) << 8) |
+- MINOR(to_kdev_t(dentry->d_inode->i_rdev));
+- mdata = (char *)&dev;
+- mdatalen = sizeof(dev);
+- D1(printk(KERN_DEBUG "jffs2_setattr(): Writing %d bytes of kdev_t\n", mdatalen));
+- } else if (S_ISLNK(inode->i_mode)) {
+- mdatalen = f->metadata->size;
+- mdata = kmalloc(f->metadata->size, GFP_USER);
+- if (!mdata)
+- return -ENOMEM;
+- ret = jffs2_read_dnode(c, f->metadata, mdata, 0, mdatalen);
+- if (ret) {
+- kfree(mdata);
+- return ret;
+- }
+- D1(printk(KERN_DEBUG "jffs2_setattr(): Writing %d bytes of symlink target\n", mdatalen));
+- }
+-
+- ri = jffs2_alloc_raw_inode();
+- if (!ri) {
+- if (S_ISLNK(inode->i_mode))
+- kfree(mdata);
+- return -ENOMEM;
+- }
+-
+- ret = jffs2_reserve_space(c, sizeof(*ri) + mdatalen, &phys_ofs, &alloclen, ALLOC_NORMAL);
+- if (ret) {
+- jffs2_free_raw_inode(ri);
+- if (S_ISLNK(inode->i_mode))
+- kfree(mdata);
+- return ret;
+- }
+- down(&f->sem);
+- ivalid = iattr->ia_valid;
+-
+- ri->magic = JFFS2_MAGIC_BITMASK;
+- ri->nodetype = JFFS2_NODETYPE_INODE;
+- ri->totlen = sizeof(*ri) + mdatalen;
+- ri->hdr_crc = crc32(0, ri, sizeof(struct jffs2_unknown_node)-4);
+-
+- ri->ino = inode->i_ino;
+- ri->version = ++f->highest_version;
+-
+- ri->mode = (ivalid & ATTR_MODE)?iattr->ia_mode:inode->i_mode;
+- ri->uid = (ivalid & ATTR_UID)?iattr->ia_uid:inode->i_uid;
+- ri->gid = (ivalid & ATTR_GID)?iattr->ia_gid:inode->i_gid;
+-
+- if (ivalid & ATTR_MODE && ri->mode & S_ISGID &&
+- !in_group_p(ri->gid) && !capable(CAP_FSETID))
+- ri->mode &= ~S_ISGID;
+-
+- ri->isize = (ivalid & ATTR_SIZE)?iattr->ia_size:inode->i_size;
+- ri->atime = (ivalid & ATTR_ATIME)?iattr->ia_atime:inode->i_atime;
+- ri->mtime = (ivalid & ATTR_MTIME)?iattr->ia_mtime:inode->i_mtime;
+- ri->ctime = (ivalid & ATTR_CTIME)?iattr->ia_ctime:inode->i_ctime;
+-
+- ri->offset = 0;
+- ri->csize = ri->dsize = mdatalen;
+- ri->compr = JFFS2_COMPR_NONE;
+- if (inode->i_size < ri->isize) {
+- /* It's an extension. Make it a hole node */
+- ri->compr = JFFS2_COMPR_ZERO;
+- ri->dsize = ri->isize - inode->i_size;
+- ri->offset = inode->i_size;
+- }
+- ri->node_crc = crc32(0, ri, sizeof(*ri)-8);
+- if (mdatalen)
+- ri->data_crc = crc32(0, mdata, mdatalen);
+- else
+- ri->data_crc = 0;
+-
+- new_metadata = jffs2_write_dnode(inode, ri, mdata, mdatalen, phys_ofs, NULL);
+- if (S_ISLNK(inode->i_mode))
+- kfree(mdata);
+-
+- jffs2_complete_reservation(c);
+-
+- if (IS_ERR(new_metadata)) {
+- jffs2_free_raw_inode(ri);
+- up(&f->sem);
+- return PTR_ERR(new_metadata);
+- }
+- /* It worked. Update the inode */
+- inode->i_atime = ri->atime;
+- inode->i_ctime = ri->ctime;
+- inode->i_mtime = ri->mtime;
+- inode->i_mode = ri->mode;
+- inode->i_uid = ri->uid;
+- inode->i_gid = ri->gid;
+-
+-
+- old_metadata = f->metadata;
+-
+- if (inode->i_size > ri->isize) {
+- vmtruncate(inode, ri->isize);
+- jffs2_truncate_fraglist (c, &f->fraglist, ri->isize);
+- }
+-
+- if (inode->i_size < ri->isize) {
+- jffs2_add_full_dnode_to_inode(c, f, new_metadata);
+- inode->i_size = ri->isize;
+- f->metadata = NULL;
+- } else {
+- f->metadata = new_metadata;
+- }
+- if (old_metadata) {
+- jffs2_mark_node_obsolete(c, old_metadata->raw);
+- jffs2_free_full_dnode(old_metadata);
+- }
+- jffs2_free_raw_inode(ri);
+- up(&f->sem);
+- return 0;
+-}
+-
+ int jffs2_do_readpage_nolock (struct inode *inode, struct page *pg)
+ {
+ struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode);
+ struct jffs2_sb_info *c = JFFS2_SB_INFO(inode->i_sb);
+- struct jffs2_node_frag *frag = f->fraglist;
+- __u32 offset = pg->index << PAGE_CACHE_SHIFT;
+- __u32 end = offset + PAGE_CACHE_SIZE;
+ unsigned char *pg_buf;
+ int ret;
+
+- D1(printk(KERN_DEBUG "jffs2_do_readpage_nolock(): ino #%lu, page at offset 0x%x\n", inode->i_ino, offset));
++ D2(printk(KERN_DEBUG "jffs2_do_readpage_nolock(): ino #%lu, page at offset 0x%lx\n", inode->i_ino, pg->index << PAGE_CACHE_SHIFT));
+
+ if (!PageLocked(pg))
+ PAGE_BUG(pg);
+
+- while(frag && frag->ofs + frag->size <= offset) {
+- // D1(printk(KERN_DEBUG "skipping frag %d-%d; before the region we care about\n", frag->ofs, frag->ofs + frag->size));
+- frag = frag->next;
+- }
+-
+ pg_buf = kmap(pg);
++ /* FIXME: Can kmap fail? */
+
+- /* XXX FIXME: Where a single physical node actually shows up in two
+- frags, we read it twice. Don't do that. */
+- /* Now we're pointing at the first frag which overlaps our page */
+- while(offset < end) {
+- D2(printk(KERN_DEBUG "jffs2_readpage: offset %d, end %d\n", offset, end));
+- if (!frag || frag->ofs > offset) {
+- __u32 holesize = end - offset;
+- if (frag) {
+- D1(printk(KERN_NOTICE "Eep. Hole in ino %ld fraglist. frag->ofs = 0x%08x, offset = 0x%08x\n", inode->i_ino, frag->ofs, offset));
+- holesize = min(holesize, frag->ofs - offset);
+- D1(jffs2_print_frag_list(f));
+- }
+- D1(printk(KERN_DEBUG "Filling non-frag hole from %d-%d\n", offset, offset+holesize));
+- memset(pg_buf, 0, holesize);
+- pg_buf += holesize;
+- offset += holesize;
+- continue;
+- } else if (frag->ofs < offset && (offset & (PAGE_CACHE_SIZE-1)) != 0) {
+- D1(printk(KERN_NOTICE "Eep. Overlap in ino #%ld fraglist. frag->ofs = 0x%08x, offset = 0x%08x\n",
+- inode->i_ino, frag->ofs, offset));
+- D1(jffs2_print_frag_list(f));
+- memset(pg_buf, 0, end - offset);
+- ClearPageUptodate(pg);
+- SetPageError(pg);
+- kunmap(pg);
+- return -EIO;
+- } else if (!frag->node) {
+- __u32 holeend = min(end, frag->ofs + frag->size);
+- D1(printk(KERN_DEBUG "Filling frag hole from %d-%d (frag 0x%x 0x%x)\n", offset, holeend, frag->ofs, frag->ofs + frag->size));
+- memset(pg_buf, 0, holeend - offset);
+- pg_buf += holeend - offset;
+- offset = holeend;
+- frag = frag->next;
+- continue;
+- } else {
+- __u32 readlen;
+- __u32 fragofs; /* offset within the frag to start reading */
++ ret = jffs2_read_inode_range(c, f, pg_buf, pg->index << PAGE_CACHE_SHIFT, PAGE_CACHE_SIZE);
+
+- fragofs = offset - frag->ofs;
+- readlen = min(frag->size - fragofs, end - offset);
+- D1(printk(KERN_DEBUG "Reading %d-%d from node at 0x%x\n", frag->ofs+fragofs,
+- fragofs+frag->ofs+readlen, frag->node->raw->flash_offset & ~3));
+- ret = jffs2_read_dnode(c, frag->node, pg_buf, fragofs + frag->ofs - frag->node->ofs, readlen);
+- D2(printk(KERN_DEBUG "node read done\n"));
+ if (ret) {
+- D1(printk(KERN_DEBUG"jffs2_readpage error %d\n",ret));
+- memset(pg_buf, 0, readlen);
+ ClearPageUptodate(pg);
+ SetPageError(pg);
+- kunmap(pg);
+- return ret;
+- }
+-
+- pg_buf += readlen;
+- offset += readlen;
+- frag = frag->next;
+- D2(printk(KERN_DEBUG "node read was OK. Looping\n"));
+- }
+- }
+- D2(printk(KERN_DEBUG "readpage finishing\n"));
++ } else {
+ SetPageUptodate(pg);
+ ClearPageError(pg);
++ }
+
+ flush_dcache_page(pg);
+-
+ kunmap(pg);
+- D1(printk(KERN_DEBUG "readpage finished\n"));
++
++ D2(printk(KERN_DEBUG "readpage finished\n"));
+ return 0;
+ }
+
+ int jffs2_do_readpage_unlock(struct inode *inode, struct page *pg)
+ {
+ int ret = jffs2_do_readpage_nolock(inode, pg);
+- UnlockPage(pg);
++ unlock_page(pg);
+ return ret;
+ }
+
+@@ -333,17 +120,17 @@
+ {
+ struct inode *inode = pg->mapping->host;
+ struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode);
+- __u32 pageofs = pg->index << PAGE_CACHE_SHIFT;
++ uint32_t pageofs = pg->index << PAGE_CACHE_SHIFT;
+ int ret = 0;
+
+- D1(printk(KERN_DEBUG "jffs2_prepare_write() nrpages %ld\n", inode->i_mapping->nrpages));
++ D1(printk(KERN_DEBUG "jffs2_prepare_write()\n"));
+
+ if (pageofs > inode->i_size) {
+ /* Make new hole frag from old EOF to new page */
+ struct jffs2_sb_info *c = JFFS2_SB_INFO(inode->i_sb);
+ struct jffs2_raw_inode ri;
+ struct jffs2_full_dnode *fn;
+- __u32 phys_ofs, alloc_len;
++ uint32_t phys_ofs, alloc_len;
+
+ D1(printk(KERN_DEBUG "Writing new hole frag 0x%x-0x%x between current EOF and new page\n",
+ (unsigned int)inode->i_size, pageofs));
+@@ -355,29 +142,30 @@
+ down(&f->sem);
+ memset(&ri, 0, sizeof(ri));
+
+- ri.magic = JFFS2_MAGIC_BITMASK;
+- ri.nodetype = JFFS2_NODETYPE_INODE;
+- ri.totlen = sizeof(ri);
+- ri.hdr_crc = crc32(0, &ri, sizeof(struct jffs2_unknown_node)-4);
+-
+- ri.ino = f->inocache->ino;
+- ri.version = ++f->highest_version;
+- ri.mode = inode->i_mode;
+- ri.uid = inode->i_uid;
+- ri.gid = inode->i_gid;
+- ri.isize = max((__u32)inode->i_size, pageofs);
+- ri.atime = ri.ctime = ri.mtime = CURRENT_TIME;
+- ri.offset = inode->i_size;
+- ri.dsize = pageofs - inode->i_size;
+- ri.csize = 0;
++ ri.magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
++ ri.nodetype = cpu_to_je16(JFFS2_NODETYPE_INODE);
++ ri.totlen = cpu_to_je32(sizeof(ri));
++ ri.hdr_crc = cpu_to_je32(crc32(0, &ri, sizeof(struct jffs2_unknown_node)-4));
++
++ ri.ino = cpu_to_je32(f->inocache->ino);
++ ri.version = cpu_to_je32(++f->highest_version);
++ ri.mode = cpu_to_jemode(inode->i_mode);
++ ri.uid = cpu_to_je16(inode->i_uid);
++ ri.gid = cpu_to_je16(inode->i_gid);
++ ri.isize = cpu_to_je32(max((uint32_t)inode->i_size, pageofs));
++ ri.atime = ri.ctime = ri.mtime = cpu_to_je32(get_seconds());
++ ri.offset = cpu_to_je32(inode->i_size);
++ ri.dsize = cpu_to_je32(pageofs - inode->i_size);
++ ri.csize = cpu_to_je32(0);
+ ri.compr = JFFS2_COMPR_ZERO;
+- ri.node_crc = crc32(0, &ri, sizeof(ri)-8);
+- ri.data_crc = 0;
++ ri.node_crc = cpu_to_je32(crc32(0, &ri, sizeof(ri)-8));
++ ri.data_crc = cpu_to_je32(0);
++
++ fn = jffs2_write_dnode(c, f, &ri, NULL, 0, phys_ofs, ALLOC_NORMAL);
+
+- fn = jffs2_write_dnode(inode, &ri, NULL, 0, phys_ofs, NULL);
+- jffs2_complete_reservation(c);
+ if (IS_ERR(fn)) {
+ ret = PTR_ERR(fn);
++ jffs2_complete_reservation(c);
+ up(&f->sem);
+ return ret;
+ }
+@@ -391,16 +179,17 @@
+ D1(printk(KERN_DEBUG "Eep. add_full_dnode_to_inode() failed in prepare_write, returned %d\n", ret));
+ jffs2_mark_node_obsolete(c, fn->raw);
+ jffs2_free_full_dnode(fn);
++ jffs2_complete_reservation(c);
+ up(&f->sem);
+ return ret;
+ }
++ jffs2_complete_reservation(c);
+ inode->i_size = pageofs;
+ up(&f->sem);
+ }
+
+-
+ /* Read in the page if it wasn't already present, unless it's a whole page */
+- if (!Page_Uptodate(pg) && (start || end < PAGE_CACHE_SIZE)) {
++ if (!PageUptodate(pg) && (start || end < PAGE_CACHE_SIZE)) {
+ down(&f->sem);
+ ret = jffs2_do_readpage_nolock(inode, pg);
+ up(&f->sem);
+@@ -417,14 +206,12 @@
+ struct inode *inode = pg->mapping->host;
+ struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode);
+ struct jffs2_sb_info *c = JFFS2_SB_INFO(inode->i_sb);
+- __u32 newsize = max_t(__u32, filp->f_dentry->d_inode->i_size, (pg->index << PAGE_CACHE_SHIFT) + end);
+- __u32 file_ofs = (pg->index << PAGE_CACHE_SHIFT);
+- __u32 writelen = min((__u32)PAGE_CACHE_SIZE, newsize - file_ofs);
+ struct jffs2_raw_inode *ri;
+ int ret = 0;
+- ssize_t writtenlen = 0;
++ uint32_t writtenlen = 0;
+
+- D1(printk(KERN_DEBUG "jffs2_commit_write(): ino #%lu, page at 0x%lx, range %d-%d, flags %lx\n", inode->i_ino, pg->index << PAGE_CACHE_SHIFT, start, end, pg->flags));
++ D1(printk(KERN_DEBUG "jffs2_commit_write(): ino #%lu, page at 0x%lx, range %d-%d, flags %lx\n",
++ inode->i_ino, pg->index << PAGE_CACHE_SHIFT, start, end, pg->flags));
+
+ if (!start && end == PAGE_CACHE_SIZE) {
+ /* We need to avoid deadlock with page_cache_read() in
+@@ -435,109 +222,47 @@
+ }
+
+ ri = jffs2_alloc_raw_inode();
+- if (!ri)
+- return -ENOMEM;
+-
+- while(writelen) {
+- struct jffs2_full_dnode *fn;
+- unsigned char *comprbuf = NULL;
+- unsigned char comprtype = JFFS2_COMPR_NONE;
+- __u32 phys_ofs, alloclen;
+- __u32 datalen, cdatalen;
+
+- D2(printk(KERN_DEBUG "jffs2_commit_write() loop: 0x%x to write to 0x%x\n", writelen, file_ofs));
+-
+- ret = jffs2_reserve_space(c, sizeof(*ri) + JFFS2_MIN_DATA_LEN, &phys_ofs, &alloclen, ALLOC_NORMAL);
+- if (ret) {
+- SetPageError(pg);
+- D1(printk(KERN_DEBUG "jffs2_reserve_space returned %d\n", ret));
+- break;
++ if (!ri) {
++ D1(printk(KERN_DEBUG "jffs2_commit_write(): Allocation of raw inode failed\n"));
++ return -ENOMEM;
+ }
+- down(&f->sem);
+- datalen = writelen;
+- cdatalen = min(alloclen - sizeof(*ri), writelen);
+-
+- comprbuf = kmalloc(cdatalen, GFP_KERNEL);
+- if (comprbuf) {
+- comprtype = jffs2_compress(page_address(pg)+ (file_ofs & (PAGE_CACHE_SIZE-1)), comprbuf, &datalen, &cdatalen);
+- }
+- if (comprtype == JFFS2_COMPR_NONE) {
+- /* Either compression failed, or the allocation of comprbuf failed */
+- if (comprbuf)
+- kfree(comprbuf);
+- comprbuf = page_address(pg) + (file_ofs & (PAGE_CACHE_SIZE -1));
+- datalen = cdatalen;
+- }
+- /* Now comprbuf points to the data to be written, be it compressed or not.
+- comprtype holds the compression type, and comprtype == JFFS2_COMPR_NONE means
+- that the comprbuf doesn't need to be kfree()d.
+- */
+-
+- ri->magic = JFFS2_MAGIC_BITMASK;
+- ri->nodetype = JFFS2_NODETYPE_INODE;
+- ri->totlen = sizeof(*ri) + cdatalen;
+- ri->hdr_crc = crc32(0, ri, sizeof(struct jffs2_unknown_node)-4);
+-
+- ri->ino = inode->i_ino;
+- ri->version = ++f->highest_version;
+- ri->mode = inode->i_mode;
+- ri->uid = inode->i_uid;
+- ri->gid = inode->i_gid;
+- ri->isize = max((__u32)inode->i_size, file_ofs + datalen);
+- ri->atime = ri->ctime = ri->mtime = CURRENT_TIME;
+- ri->offset = file_ofs;
+- ri->csize = cdatalen;
+- ri->dsize = datalen;
+- ri->compr = comprtype;
+- ri->node_crc = crc32(0, ri, sizeof(*ri)-8);
+- ri->data_crc = crc32(0, comprbuf, cdatalen);
+-
+- fn = jffs2_write_dnode(inode, ri, comprbuf, cdatalen, phys_ofs, NULL);
+
+- jffs2_complete_reservation(c);
++ /* Set the fields that the generic jffs2_write_inode_range() code can't find */
++ ri->ino = cpu_to_je32(inode->i_ino);
++ ri->mode = cpu_to_jemode(inode->i_mode);
++ ri->uid = cpu_to_je16(inode->i_uid);
++ ri->gid = cpu_to_je16(inode->i_gid);
++ ri->isize = cpu_to_je32((uint32_t)inode->i_size);
++ ri->atime = ri->ctime = ri->mtime = cpu_to_je32(get_seconds());
++
++ /* In 2.4, it was already kmapped by generic_file_write(). Doesn't
++ hurt to do it again. The alternative is ifdefs, which are ugly. */
++ kmap(pg);
++
++ ret = jffs2_write_inode_range(c, f, ri, page_address(pg) + start,
++ (pg->index << PAGE_CACHE_SHIFT) + start,
++ end - start, &writtenlen);
+
+- if (comprtype != JFFS2_COMPR_NONE)
+- kfree(comprbuf);
++ kunmap(pg);
+
+- if (IS_ERR(fn)) {
+- ret = PTR_ERR(fn);
+- up(&f->sem);
+- SetPageError(pg);
+- break;
+- }
+- ret = jffs2_add_full_dnode_to_inode(c, f, fn);
+- if (f->metadata) {
+- jffs2_mark_node_obsolete(c, f->metadata->raw);
+- jffs2_free_full_dnode(f->metadata);
+- f->metadata = NULL;
+- }
+- up(&f->sem);
+ if (ret) {
+- /* Eep */
+- D1(printk(KERN_DEBUG "Eep. add_full_dnode_to_inode() failed in commit_write, returned %d\n", ret));
+- jffs2_mark_node_obsolete(c, fn->raw);
+- jffs2_free_full_dnode(fn);
++ /* There was an error writing. */
+ SetPageError(pg);
+- break;
+ }
+- inode->i_size = ri->isize;
++
++ if (writtenlen) {
++ if (inode->i_size < (pg->index << PAGE_CACHE_SHIFT) + start + writtenlen) {
++ inode->i_size = (pg->index << PAGE_CACHE_SHIFT) + start + writtenlen;
+ inode->i_blocks = (inode->i_size + 511) >> 9;
+- inode->i_ctime = inode->i_mtime = ri->ctime;
+- if (!datalen) {
+- printk(KERN_WARNING "Eep. We didn't actually write any bloody data\n");
+- ret = -EIO;
+- SetPageError(pg);
+- break;
++
++ inode->i_ctime = inode->i_mtime = ITIME(je32_to_cpu(ri->ctime));
+ }
+- D1(printk(KERN_DEBUG "increasing writtenlen by %d\n", datalen));
+- writtenlen += datalen;
+- file_ofs += datalen;
+- writelen -= datalen;
+ }
+
+ jffs2_free_raw_inode(ri);
+
+- if (writtenlen < end) {
++ if (start+writtenlen < end) {
+ /* generic_file_write has written more to the page cache than we've
+ actually written to the medium. Mark the page !Uptodate so that
+ it gets reread */
+@@ -545,13 +270,7 @@
+ SetPageError(pg);
+ ClearPageUptodate(pg);
+ }
+- if (writtenlen <= start) {
+- /* We didn't even get to the start of the affected part */
+- ret = ret?ret:-ENOSPC;
+- D1(printk(KERN_DEBUG "jffs2_commit_write(): Only %x bytes written to page. start (%x) not reached, returning %d\n", writtenlen, start, ret));
+- }
+- writtenlen = min(end-start, writtenlen-start);
+
+- D1(printk(KERN_DEBUG "jffs2_commit_write() returning %d. nrpages is %ld\n",writtenlen?writtenlen:ret, inode->i_mapping->nrpages));
++ D1(printk(KERN_DEBUG "jffs2_commit_write() returning %d\n",writtenlen?writtenlen:ret));
+ return writtenlen?writtenlen:ret;
+ }
+diff -Nurb linux-mips-2.4.27/fs/jffs2/fs.c linux/fs/jffs2/fs.c
+--- linux-mips-2.4.27/fs/jffs2/fs.c 1970-01-01 01:00:00.000000000 +0100
++++ linux/fs/jffs2/fs.c 2004-11-19 10:25:12.102168936 +0100
+@@ -0,0 +1,618 @@
++/*
++ * JFFS2 -- Journalling Flash File System, Version 2.
++ *
++ * Copyright (C) 2001-2003 Red Hat, Inc.
++ *
++ * Created by David Woodhouse <dwmw2@redhat.com>
++ *
++ * For licensing information, see the file 'LICENCE' in this directory.
++ *
++ * $Id: fs.c,v 1.37 2004/01/26 12:34:21 dwmw2 Exp $
++ *
++ */
++
++#include <linux/version.h>
++#include <linux/config.h>
++#include <linux/kernel.h>
++#include <linux/sched.h>
++#include <linux/fs.h>
++#include <linux/list.h>
++#include <linux/mtd/mtd.h>
++#include <linux/pagemap.h>
++#include <linux/slab.h>
++#include <linux/vfs.h>
++#include <linux/crc32.h>
++#include "nodelist.h"
++
++
++static int jffs2_do_setattr (struct inode *inode, struct iattr *iattr)
++{
++ struct jffs2_full_dnode *old_metadata, *new_metadata;
++ struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode);
++ struct jffs2_sb_info *c = JFFS2_SB_INFO(inode->i_sb);
++ struct jffs2_raw_inode *ri;
++ unsigned short dev;
++ unsigned char *mdata = NULL;
++ int mdatalen = 0;
++ unsigned int ivalid;
++ uint32_t phys_ofs, alloclen;
++ int ret;
++ D1(printk(KERN_DEBUG "jffs2_setattr(): ino #%lu\n", inode->i_ino));
++ ret = inode_change_ok(inode, iattr);
++ if (ret)
++ return ret;
++
++ /* Special cases - we don't want more than one data node
++ for these types on the medium at any time. So setattr
++ must read the original data associated with the node
++ (i.e. the device numbers or the target name) and write
++ it out again with the appropriate data attached */
++ if (S_ISBLK(inode->i_mode) || S_ISCHR(inode->i_mode)) {
++ /* For these, we don't actually need to read the old node */
++ dev = old_encode_dev(inode->i_rdev);
++ mdata = (char *)&dev;
++ mdatalen = sizeof(dev);
++ D1(printk(KERN_DEBUG "jffs2_setattr(): Writing %d bytes of kdev_t\n", mdatalen));
++ } else if (S_ISLNK(inode->i_mode)) {
++ mdatalen = f->metadata->size;
++ mdata = kmalloc(f->metadata->size, GFP_USER);
++ if (!mdata)
++ return -ENOMEM;
++ ret = jffs2_read_dnode(c, f->metadata, mdata, 0, mdatalen);
++ if (ret) {
++ kfree(mdata);
++ return ret;
++ }
++ D1(printk(KERN_DEBUG "jffs2_setattr(): Writing %d bytes of symlink target\n", mdatalen));
++ }
++
++ ri = jffs2_alloc_raw_inode();
++ if (!ri) {
++ if (S_ISLNK(inode->i_mode))
++ kfree(mdata);
++ return -ENOMEM;
++ }
++
++ ret = jffs2_reserve_space(c, sizeof(*ri) + mdatalen, &phys_ofs, &alloclen, ALLOC_NORMAL);
++ if (ret) {
++ jffs2_free_raw_inode(ri);
++ if (S_ISLNK(inode->i_mode & S_IFMT))
++ kfree(mdata);
++ return ret;
++ }
++ down(&f->sem);
++ ivalid = iattr->ia_valid;
++
++ ri->magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
++ ri->nodetype = cpu_to_je16(JFFS2_NODETYPE_INODE);
++ ri->totlen = cpu_to_je32(sizeof(*ri) + mdatalen);
++ ri->hdr_crc = cpu_to_je32(crc32(0, ri, sizeof(struct jffs2_unknown_node)-4));
++
++ ri->ino = cpu_to_je32(inode->i_ino);
++ ri->version = cpu_to_je32(++f->highest_version);
++
++ ri->uid = cpu_to_je16((ivalid & ATTR_UID)?iattr->ia_uid:inode->i_uid);
++ ri->gid = cpu_to_je16((ivalid & ATTR_GID)?iattr->ia_gid:inode->i_gid);
++
++ if (ivalid & ATTR_MODE)
++ if (iattr->ia_mode & S_ISGID &&
++ !in_group_p(je16_to_cpu(ri->gid)) && !capable(CAP_FSETID))
++ ri->mode = cpu_to_jemode(iattr->ia_mode & ~S_ISGID);
++ else
++ ri->mode = cpu_to_jemode(iattr->ia_mode);
++ else
++ ri->mode = cpu_to_jemode(inode->i_mode);
++
++
++ ri->isize = cpu_to_je32((ivalid & ATTR_SIZE)?iattr->ia_size:inode->i_size);
++ ri->atime = cpu_to_je32(I_SEC((ivalid & ATTR_ATIME)?iattr->ia_atime:inode->i_atime));
++ ri->mtime = cpu_to_je32(I_SEC((ivalid & ATTR_MTIME)?iattr->ia_mtime:inode->i_mtime));
++ ri->ctime = cpu_to_je32(I_SEC((ivalid & ATTR_CTIME)?iattr->ia_ctime:inode->i_ctime));
++
++ ri->offset = cpu_to_je32(0);
++ ri->csize = ri->dsize = cpu_to_je32(mdatalen);
++ ri->compr = JFFS2_COMPR_NONE;
++ if (ivalid & ATTR_SIZE && inode->i_size < iattr->ia_size) {
++ /* It's an extension. Make it a hole node */
++ ri->compr = JFFS2_COMPR_ZERO;
++ ri->dsize = cpu_to_je32(iattr->ia_size - inode->i_size);
++ ri->offset = cpu_to_je32(inode->i_size);
++ }
++ ri->node_crc = cpu_to_je32(crc32(0, ri, sizeof(*ri)-8));
++ if (mdatalen)
++ ri->data_crc = cpu_to_je32(crc32(0, mdata, mdatalen));
++ else
++ ri->data_crc = cpu_to_je32(0);
++
++ new_metadata = jffs2_write_dnode(c, f, ri, mdata, mdatalen, phys_ofs, ALLOC_NORMAL);
++ if (S_ISLNK(inode->i_mode))
++ kfree(mdata);
++
++ if (IS_ERR(new_metadata)) {
++ jffs2_complete_reservation(c);
++ jffs2_free_raw_inode(ri);
++ up(&f->sem);
++ return PTR_ERR(new_metadata);
++ }
++ /* It worked. Update the inode */
++ inode->i_atime = ITIME(je32_to_cpu(ri->atime));
++ inode->i_ctime = ITIME(je32_to_cpu(ri->ctime));
++ inode->i_mtime = ITIME(je32_to_cpu(ri->mtime));
++ inode->i_mode = jemode_to_cpu(ri->mode);
++ inode->i_uid = je16_to_cpu(ri->uid);
++ inode->i_gid = je16_to_cpu(ri->gid);
++
++
++ old_metadata = f->metadata;
++
++ if (ivalid & ATTR_SIZE && inode->i_size > iattr->ia_size)
++ jffs2_truncate_fraglist (c, &f->fragtree, iattr->ia_size);
++
++ if (ivalid & ATTR_SIZE && inode->i_size < iattr->ia_size) {
++ jffs2_add_full_dnode_to_inode(c, f, new_metadata);
++ inode->i_size = iattr->ia_size;
++ f->metadata = NULL;
++ } else {
++ f->metadata = new_metadata;
++ }
++ if (old_metadata) {
++ jffs2_mark_node_obsolete(c, old_metadata->raw);
++ jffs2_free_full_dnode(old_metadata);
++ }
++ jffs2_free_raw_inode(ri);
++
++ up(&f->sem);
++ jffs2_complete_reservation(c);
++
++ /* We have to do the vmtruncate() without f->sem held, since
++ some pages may be locked and waiting for it in readpage().
++ We are protected from a simultaneous write() extending i_size
++ back past iattr->ia_size, because do_truncate() holds the
++ generic inode semaphore. */
++ if (ivalid & ATTR_SIZE && inode->i_size > iattr->ia_size)
++ vmtruncate(inode, iattr->ia_size);
++
++ return 0;
++}
++
++int jffs2_setattr(struct dentry *dentry, struct iattr *iattr)
++{
++ return jffs2_do_setattr(dentry->d_inode, iattr);
++}
++
++int jffs2_statfs(struct super_block *sb, struct kstatfs *buf)
++{
++ struct jffs2_sb_info *c = JFFS2_SB_INFO(sb);
++ unsigned long avail;
++
++ buf->f_type = JFFS2_SUPER_MAGIC;
++ buf->f_bsize = 1 << PAGE_SHIFT;
++ buf->f_blocks = c->flash_size >> PAGE_SHIFT;
++ buf->f_files = 0;
++ buf->f_ffree = 0;
++ buf->f_namelen = JFFS2_MAX_NAME_LEN;
++
++ spin_lock(&c->erase_completion_lock);
++
++ avail = c->dirty_size + c->free_size;
++ if (avail > c->sector_size * c->resv_blocks_write)
++ avail -= c->sector_size * c->resv_blocks_write;
++ else
++ avail = 0;
++
++ buf->f_bavail = buf->f_bfree = avail >> PAGE_SHIFT;
++
++ D1(jffs2_dump_block_lists(c));
++
++ spin_unlock(&c->erase_completion_lock);
++
++ return 0;
++}
++
++
++void jffs2_clear_inode (struct inode *inode)
++{
++ /* We can forget about this inode for now - drop all
++ * the nodelists associated with it, etc.
++ */
++ struct jffs2_sb_info *c = JFFS2_SB_INFO(inode->i_sb);
++ struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode);
++
++ D1(printk(KERN_DEBUG "jffs2_clear_inode(): ino #%lu mode %o\n", inode->i_ino, inode->i_mode));
++
++ jffs2_do_clear_inode(c, f);
++}
++
++void jffs2_read_inode (struct inode *inode)
++{
++ struct jffs2_inode_info *f;
++ struct jffs2_sb_info *c;
++ struct jffs2_raw_inode latest_node;
++ int ret;
++
++ D1(printk(KERN_DEBUG "jffs2_read_inode(): inode->i_ino == %lu\n", inode->i_ino));
++
++ f = JFFS2_INODE_INFO(inode);
++ c = JFFS2_SB_INFO(inode->i_sb);
++
++ jffs2_init_inode_info(f);
++
++ ret = jffs2_do_read_inode(c, f, inode->i_ino, &latest_node);
++
++ if (ret) {
++ make_bad_inode(inode);
++ up(&f->sem);
++ return;
++ }
++ inode->i_mode = jemode_to_cpu(latest_node.mode);
++ inode->i_uid = je16_to_cpu(latest_node.uid);
++ inode->i_gid = je16_to_cpu(latest_node.gid);
++ inode->i_size = je32_to_cpu(latest_node.isize);
++ inode->i_atime = ITIME(je32_to_cpu(latest_node.atime));
++ inode->i_mtime = ITIME(je32_to_cpu(latest_node.mtime));
++ inode->i_ctime = ITIME(je32_to_cpu(latest_node.ctime));
++
++ inode->i_nlink = f->inocache->nlink;
++
++ inode->i_blksize = PAGE_SIZE;
++ inode->i_blocks = (inode->i_size + 511) >> 9;
++
++ switch (inode->i_mode & S_IFMT) {
++ jint16_t rdev;
++
++ case S_IFLNK:
++ inode->i_op = &jffs2_symlink_inode_operations;
++ break;
++
++ case S_IFDIR:
++ {
++ struct jffs2_full_dirent *fd;
++
++ for (fd=f->dents; fd; fd = fd->next) {
++ if (fd->type == DT_DIR && fd->ino)
++ inode->i_nlink++;
++ }
++ /* and '..' */
++ inode->i_nlink++;
++ /* Root dir gets i_nlink 3 for some reason */
++ if (inode->i_ino == 1)
++ inode->i_nlink++;
++
++ inode->i_op = &jffs2_dir_inode_operations;
++ inode->i_fop = &jffs2_dir_operations;
++ break;
++ }
++ case S_IFREG:
++ inode->i_op = &jffs2_file_inode_operations;
++ inode->i_fop = &jffs2_file_operations;
++ inode->i_mapping->a_ops = &jffs2_file_address_operations;
++ inode->i_mapping->nrpages = 0;
++ break;
++
++ case S_IFBLK:
++ case S_IFCHR:
++ /* Read the device numbers from the media */
++ D1(printk(KERN_DEBUG "Reading device numbers from flash\n"));
++ if (jffs2_read_dnode(c, f->metadata, (char *)&rdev, 0, sizeof(rdev)) < 0) {
++ /* Eep */
++ printk(KERN_NOTICE "Read device numbers for inode %lu failed\n", (unsigned long)inode->i_ino);
++ up(&f->sem);
++ jffs2_do_clear_inode(c, f);
++ make_bad_inode(inode);
++ return;
++ }
++
++ case S_IFSOCK:
++ case S_IFIFO:
++ inode->i_op = &jffs2_file_inode_operations;
++ init_special_inode(inode, inode->i_mode,
++ old_decode_dev((je16_to_cpu(rdev))));
++ break;
++
++ default:
++ printk(KERN_WARNING "jffs2_read_inode(): Bogus imode %o for ino %lu\n", inode->i_mode, (unsigned long)inode->i_ino);
++ }
++
++ up(&f->sem);
++
++ D1(printk(KERN_DEBUG "jffs2_read_inode() returning\n"));
++}
++
++void jffs2_dirty_inode(struct inode *inode)
++{
++ struct iattr iattr;
++
++ if (!(inode->i_state & I_DIRTY_DATASYNC)) {
++ D2(printk(KERN_DEBUG "jffs2_dirty_inode() not calling setattr() for ino #%lu\n", inode->i_ino));
++ return;
++ }
++
++ D1(printk(KERN_DEBUG "jffs2_dirty_inode() calling setattr() for ino #%lu\n", inode->i_ino));
++
++ iattr.ia_valid = ATTR_MODE|ATTR_UID|ATTR_GID|ATTR_ATIME|ATTR_MTIME|ATTR_CTIME;
++ iattr.ia_mode = inode->i_mode;
++ iattr.ia_uid = inode->i_uid;
++ iattr.ia_gid = inode->i_gid;
++ iattr.ia_atime = inode->i_atime;
++ iattr.ia_mtime = inode->i_mtime;
++ iattr.ia_ctime = inode->i_ctime;
++
++ jffs2_do_setattr(inode, &iattr);
++}
++
++int jffs2_remount_fs (struct super_block *sb, int *flags, char *data)
++{
++ struct jffs2_sb_info *c = JFFS2_SB_INFO(sb);
++
++ if (c->flags & JFFS2_SB_FLAG_RO && !(sb->s_flags & MS_RDONLY))
++ return -EROFS;
++
++ /* We stop if it was running, then restart if it needs to.
++ This also catches the case where it was stopped and this
++ is just a remount to restart it */
++ if (!(sb->s_flags & MS_RDONLY))
++ jffs2_stop_garbage_collect_thread(c);
++
++ if (!(*flags & MS_RDONLY))
++ jffs2_start_garbage_collect_thread(c);
++
++ sb->s_flags = (sb->s_flags & ~MS_RDONLY)|(*flags & MS_RDONLY);
++
++ return 0;
++}
++
++void jffs2_write_super (struct super_block *sb)
++{
++ struct jffs2_sb_info *c = JFFS2_SB_INFO(sb);
++ sb->s_dirt = 0;
++
++ if (sb->s_flags & MS_RDONLY)
++ return;
++
++ D1(printk(KERN_DEBUG "jffs2_write_super()\n"));
++ jffs2_garbage_collect_trigger(c);
++ jffs2_erase_pending_blocks(c, 0);
++ jffs2_flush_wbuf_gc(c, 0);
++}
++
++
++/* jffs2_new_inode: allocate a new inode and inocache, add it to the hash,
++ fill in the raw_inode while you're at it. */
++struct inode *jffs2_new_inode (struct inode *dir_i, int mode, struct jffs2_raw_inode *ri)
++{
++ struct inode *inode;
++ struct super_block *sb = dir_i->i_sb;
++ struct jffs2_sb_info *c;
++ struct jffs2_inode_info *f;
++ int ret;
++
++ D1(printk(KERN_DEBUG "jffs2_new_inode(): dir_i %ld, mode 0x%x\n", dir_i->i_ino, mode));
++
++ c = JFFS2_SB_INFO(sb);
++
++ inode = new_inode(sb);
++
++ if (!inode)
++ return ERR_PTR(-ENOMEM);
++
++ f = JFFS2_INODE_INFO(inode);
++ jffs2_init_inode_info(f);
++
++ memset(ri, 0, sizeof(*ri));
++ /* Set OS-specific defaults for new inodes */
++ ri->uid = cpu_to_je16(current->fsuid);
++
++ if (dir_i->i_mode & S_ISGID) {
++ ri->gid = cpu_to_je16(dir_i->i_gid);
++ if (S_ISDIR(mode))
++ mode |= S_ISGID;
++ } else {
++ ri->gid = cpu_to_je16(current->fsgid);
++ }
++ ri->mode = cpu_to_jemode(mode);
++ ret = jffs2_do_new_inode (c, f, mode, ri);
++ if (ret) {
++ make_bad_inode(inode);
++ iput(inode);
++ return ERR_PTR(ret);
++ }
++ inode->i_nlink = 1;
++ inode->i_ino = je32_to_cpu(ri->ino);
++ inode->i_mode = jemode_to_cpu(ri->mode);
++ inode->i_gid = je16_to_cpu(ri->gid);
++ inode->i_uid = je16_to_cpu(ri->uid);
++ inode->i_atime = inode->i_ctime = inode->i_mtime = CURRENT_TIME;
++ ri->atime = ri->mtime = ri->ctime = cpu_to_je32(I_SEC(inode->i_mtime));
++
++ inode->i_blksize = PAGE_SIZE;
++ inode->i_blocks = 0;
++ inode->i_size = 0;
++
++ insert_inode_hash(inode);
++
++ return inode;
++}
++
++
++int jffs2_do_fill_super(struct super_block *sb, void *data, int silent)
++{
++ struct jffs2_sb_info *c;
++ struct inode *root_i;
++ int ret;
++ size_t blocks;
++
++ c = JFFS2_SB_INFO(sb);
++
++ c->flash_size = c->mtd->size;
++
++ /*
++ * Check, if we have to concatenate physical blocks to larger virtual blocks
++ * to reduce the memorysize for c->blocks. (kmalloc allows max. 128K allocation)
++ */
++ blocks = c->flash_size / c->mtd->erasesize;
++ while ((blocks * sizeof (struct jffs2_eraseblock)) > (128 * 1024))
++ blocks >>= 1;
++
++ c->sector_size = c->flash_size / blocks;
++ if (c->sector_size != c->mtd->erasesize)
++ printk(KERN_INFO "jffs2: Erase block size too small (%dKiB). Using virtual blocks size (%dKiB) instead\n",
++ c->mtd->erasesize / 1024, c->sector_size / 1024);
++
++ if (c->flash_size < 5*c->sector_size) {
++ printk(KERN_ERR "jffs2: Too few erase blocks (%d)\n", c->flash_size / c->sector_size);
++ return -EINVAL;
++ }
++
++ c->cleanmarker_size = sizeof(struct jffs2_unknown_node);
++ /* Joern -- stick alignment for weird 8-byte-page flash here */
++
++ if (jffs2_cleanmarker_oob(c)) {
++ /* NAND (or other bizarre) flash... do setup accordingly */
++ ret = jffs2_nand_flash_setup(c);
++ if (ret)
++ return ret;
++ }
++
++ c->inocache_list = kmalloc(INOCACHE_HASHSIZE * sizeof(struct jffs2_inode_cache *), GFP_KERNEL);
++ if (!c->inocache_list) {
++ ret = -ENOMEM;
++ goto out_wbuf;
++ }
++ memset(c->inocache_list, 0, INOCACHE_HASHSIZE * sizeof(struct jffs2_inode_cache *));
++
++ if ((ret = jffs2_do_mount_fs(c)))
++ goto out_inohash;
++
++ ret = -EINVAL;
++
++ D1(printk(KERN_DEBUG "jffs2_do_fill_super(): Getting root inode\n"));
++ root_i = iget(sb, 1);
++ if (is_bad_inode(root_i)) {
++ D1(printk(KERN_WARNING "get root inode failed\n"));
++ goto out_nodes;
++ }
++
++ D1(printk(KERN_DEBUG "jffs2_do_fill_super(): d_alloc_root()\n"));
++ sb->s_root = d_alloc_root(root_i);
++ if (!sb->s_root)
++ goto out_root_i;
++
++#if LINUX_VERSION_CODE >= 0x20403
++ sb->s_maxbytes = 0xFFFFFFFF;
++#endif
++ sb->s_blocksize = PAGE_CACHE_SIZE;
++ sb->s_blocksize_bits = PAGE_CACHE_SHIFT;
++ sb->s_magic = JFFS2_SUPER_MAGIC;
++ if (!(sb->s_flags & MS_RDONLY))
++ jffs2_start_garbage_collect_thread(c);
++ return 0;
++
++ out_root_i:
++ iput(root_i);
++ out_nodes:
++ jffs2_free_ino_caches(c);
++ jffs2_free_raw_node_refs(c);
++ kfree(c->blocks);
++ out_inohash:
++ kfree(c->inocache_list);
++ out_wbuf:
++ jffs2_nand_flash_cleanup(c);
++
++ return ret;
++}
++
++void jffs2_gc_release_inode(struct jffs2_sb_info *c,
++ struct jffs2_inode_info *f)
++{
++ iput(OFNI_EDONI_2SFFJ(f));
++}
++
++struct jffs2_inode_info *jffs2_gc_fetch_inode(struct jffs2_sb_info *c,
++ int inum, int nlink)
++{
++ struct inode *inode;
++ struct jffs2_inode_cache *ic;
++ if (!nlink) {
++ /* The inode has zero nlink but its nodes weren't yet marked
++ obsolete. This has to be because we're still waiting for
++ the final (close() and) iput() to happen.
++
++ There's a possibility that the final iput() could have
++ happened while we were contemplating. In order to ensure
++ that we don't cause a new read_inode() (which would fail)
++ for the inode in question, we use ilookup() in this case
++ instead of iget().
++
++ The nlink can't _become_ zero at this point because we're
++ holding the alloc_sem, and jffs2_do_unlink() would also
++ need that while decrementing nlink on any inode.
++ */
++ inode = ilookup(OFNI_BS_2SFFJ(c), inum);
++ if (!inode) {
++ D1(printk(KERN_DEBUG "ilookup() failed for ino #%u; inode is probably deleted.\n",
++ inum));
++
++ spin_lock(&c->inocache_lock);
++ ic = jffs2_get_ino_cache(c, inum);
++ if (!ic) {
++ D1(printk(KERN_DEBUG "Inode cache for ino #%u is gone.\n", inum));
++ spin_unlock(&c->inocache_lock);
++ return NULL;
++ }
++ if (ic->state != INO_STATE_CHECKEDABSENT) {
++ /* Wait for progress. Don't just loop */
++ D1(printk(KERN_DEBUG "Waiting for ino #%u in state %d\n",
++ ic->ino, ic->state));
++ sleep_on_spinunlock(&c->inocache_wq, &c->inocache_lock);
++ } else {
++ spin_unlock(&c->inocache_lock);
++ }
++
++ return NULL;
++ }
++ } else {
++ /* Inode has links to it still; they're not going away because
++ jffs2_do_unlink() would need the alloc_sem and we have it.
++ Just iget() it, and if read_inode() is necessary that's OK.
++ */
++ inode = iget(OFNI_BS_2SFFJ(c), inum);
++ if (!inode)
++ return ERR_PTR(-ENOMEM);
++ }
++ if (is_bad_inode(inode)) {
++ printk(KERN_NOTICE "Eep. read_inode() failed for ino #%u. nlink %d\n",
++ inum, nlink);
++ /* NB. This will happen again. We need to do something appropriate here. */
++ iput(inode);
++ return ERR_PTR(-EIO);
++ }
++
++ return JFFS2_INODE_INFO(inode);
++}
++
++unsigned char *jffs2_gc_fetch_page(struct jffs2_sb_info *c,
++ struct jffs2_inode_info *f,
++ unsigned long offset,
++ unsigned long *priv)
++{
++ struct inode *inode = OFNI_EDONI_2SFFJ(f);
++ struct page *pg;
++
++ pg = read_cache_page(inode->i_mapping, offset >> PAGE_CACHE_SHIFT,
++ (void *)jffs2_do_readpage_unlock, inode);
++ if (IS_ERR(pg))
++ return (void *)pg;
++
++ *priv = (unsigned long)pg;
++ return kmap(pg);
++}
++
++void jffs2_gc_release_page(struct jffs2_sb_info *c,
++ unsigned char *ptr,
++ unsigned long *priv)
++{
++ struct page *pg = (void *)*priv;
++
++ kunmap(pg);
++ page_cache_release(pg);
++}
+diff -Nurb linux-mips-2.4.27/fs/jffs2/gc.c linux/fs/jffs2/gc.c
+--- linux-mips-2.4.27/fs/jffs2/gc.c 2003-11-17 02:07:44.000000000 +0100
++++ linux/fs/jffs2/gc.c 2004-11-19 10:25:12.104168632 +0100
+@@ -1,76 +1,67 @@
+ /*
+ * JFFS2 -- Journalling Flash File System, Version 2.
+ *
+- * Copyright (C) 2001 Red Hat, Inc.
++ * Copyright (C) 2001-2003 Red Hat, Inc.
+ *
+- * Created by David Woodhouse <dwmw2@cambridge.redhat.com>
++ * Created by David Woodhouse <dwmw2@redhat.com>
+ *
+- * The original JFFS, from which the design for JFFS2 was derived,
+- * was designed and implemented by Axis Communications AB.
++ * For licensing information, see the file 'LICENCE' in this directory.
+ *
+- * The contents of this file are subject to the Red Hat eCos Public
+- * License Version 1.1 (the "Licence"); you may not use this file
+- * except in compliance with the Licence. You may obtain a copy of
+- * the Licence at http://www.redhat.com/
+- *
+- * Software distributed under the Licence is distributed on an "AS IS"
+- * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
+- * See the Licence for the specific language governing rights and
+- * limitations under the Licence.
+- *
+- * The Original Code is JFFS2 - Journalling Flash File System, version 2
+- *
+- * Alternatively, the contents of this file may be used under the
+- * terms of the GNU General Public License version 2 (the "GPL"), in
+- * which case the provisions of the GPL are applicable instead of the
+- * above. If you wish to allow the use of your version of this file
+- * only under the terms of the GPL and not to allow others to use your
+- * version of this file under the RHEPL, indicate your decision by
+- * deleting the provisions above and replace them with the notice and
+- * other provisions required by the GPL. If you do not delete the
+- * provisions above, a recipient may use your version of this file
+- * under either the RHEPL or the GPL.
+- *
+- * $Id: gc.c,v 1.52.2.7 2003/11/02 13:54:20 dwmw2 Exp $
++ * $Id: gc.c,v 1.132 2003/12/01 11:32:11 dwmw2 Exp $
+ *
+ */
+
+ #include <linux/kernel.h>
+ #include <linux/mtd/mtd.h>
+ #include <linux/slab.h>
+-#include <linux/jffs2.h>
+-#include <linux/sched.h>
+-#include <linux/interrupt.h>
+ #include <linux/pagemap.h>
+-#include "nodelist.h"
+ #include <linux/crc32.h>
++#include <linux/compiler.h>
++#include <linux/stat.h>
++#include "nodelist.h"
+
++static int jffs2_garbage_collect_pristine(struct jffs2_sb_info *c,
++ struct jffs2_inode_cache *ic,
++ struct jffs2_raw_node_ref *raw);
+ static int jffs2_garbage_collect_metadata(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb,
+- struct inode *inode, struct jffs2_full_dnode *fd);
++ struct jffs2_inode_info *f, struct jffs2_full_dnode *fd);
+ static int jffs2_garbage_collect_dirent(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb,
+- struct inode *inode, struct jffs2_full_dirent *fd);
++ struct jffs2_inode_info *f, struct jffs2_full_dirent *fd);
+ static int jffs2_garbage_collect_deletion_dirent(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb,
+- struct inode *inode, struct jffs2_full_dirent *fd);
++ struct jffs2_inode_info *f, struct jffs2_full_dirent *fd);
+ static int jffs2_garbage_collect_hole(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb,
+- struct inode *indeo, struct jffs2_full_dnode *fn,
+- __u32 start, __u32 end);
++ struct jffs2_inode_info *f, struct jffs2_full_dnode *fn,
++ uint32_t start, uint32_t end);
+ static int jffs2_garbage_collect_dnode(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb,
+- struct inode *inode, struct jffs2_full_dnode *fn,
+- __u32 start, __u32 end);
++ struct jffs2_inode_info *f, struct jffs2_full_dnode *fn,
++ uint32_t start, uint32_t end);
++static int jffs2_garbage_collect_live(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb,
++ struct jffs2_raw_node_ref *raw, struct jffs2_inode_info *f);
+
+ /* Called with erase_completion_lock held */
+ static struct jffs2_eraseblock *jffs2_find_gc_block(struct jffs2_sb_info *c)
+ {
+ struct jffs2_eraseblock *ret;
+ struct list_head *nextlist = NULL;
++ int n = jiffies % 128;
+
+ /* Pick an eraseblock to garbage collect next. This is where we'll
+ put the clever wear-levelling algorithms. Eventually. */
+- if (!list_empty(&c->bad_used_list) && c->nr_free_blocks > JFFS2_RESERVED_BLOCKS_GCBAD) {
++ /* We possibly want to favour the dirtier blocks more when the
++ number of free blocks is low. */
++ if (!list_empty(&c->bad_used_list) && c->nr_free_blocks > c->resv_blocks_gcbad) {
+ D1(printk(KERN_DEBUG "Picking block from bad_used_list to GC next\n"));
+ nextlist = &c->bad_used_list;
+- } else if (jiffies % 100 && !list_empty(&c->dirty_list)) {
+- /* Most of the time, pick one off the dirty list */
++ } else if (n < 50 && !list_empty(&c->erasable_list)) {
++ /* Note that most of them will have gone directly to be erased.
++ So don't favour the erasable_list _too_ much. */
++ D1(printk(KERN_DEBUG "Picking block from erasable_list to GC next\n"));
++ nextlist = &c->erasable_list;
++ } else if (n < 110 && !list_empty(&c->very_dirty_list)) {
++ /* Most of the time, pick one off the very_dirty list */
++ D1(printk(KERN_DEBUG "Picking block from very_dirty_list to GC next\n"));
++ nextlist = &c->very_dirty_list;
++ } else if (n < 126 && !list_empty(&c->dirty_list)) {
+ D1(printk(KERN_DEBUG "Picking block from dirty_list to GC next\n"));
+ nextlist = &c->dirty_list;
+ } else if (!list_empty(&c->clean_list)) {
+@@ -80,9 +71,16 @@
+ D1(printk(KERN_DEBUG "Picking block from dirty_list to GC next (clean_list was empty)\n"));
+
+ nextlist = &c->dirty_list;
++ } else if (!list_empty(&c->very_dirty_list)) {
++ D1(printk(KERN_DEBUG "Picking block from very_dirty_list to GC next (clean_list and dirty_list were empty)\n"));
++ nextlist = &c->very_dirty_list;
++ } else if (!list_empty(&c->erasable_list)) {
++ D1(printk(KERN_DEBUG "Picking block from erasable_list to GC next (clean_list and {very_,}dirty_list were empty)\n"));
++
++ nextlist = &c->erasable_list;
+ } else {
+- /* Eep. Both were empty */
+- printk(KERN_NOTICE "jffs2: No clean _or_ dirty blocks to GC from! Where are they all?\n");
++ /* Eep. All were empty */
++ printk(KERN_NOTICE "jffs2: No clean, dirty _or_ erasable blocks to GC from! Where are they all?\n");
+ return NULL;
+ }
+
+@@ -94,6 +92,17 @@
+ printk(KERN_WARNING "Eep. ret->gc_node for block at 0x%08x is NULL\n", ret->offset);
+ BUG();
+ }
++
++ /* Have we accidentally picked a clean block with wasted space ? */
++ if (ret->wasted_size) {
++ D1(printk(KERN_DEBUG "Converting wasted_size %08x to dirty_size\n", ret->wasted_size));
++ ret->dirty_size += ret->wasted_size;
++ c->wasted_size -= ret->wasted_size;
++ c->dirty_size += ret->wasted_size;
++ ret->wasted_size = 0;
++ }
++
++ D1(jffs2_dump_block_lists(c));
+ return ret;
+ }
+
+@@ -103,21 +112,90 @@
+ */
+ int jffs2_garbage_collect_pass(struct jffs2_sb_info *c)
+ {
+- struct jffs2_eraseblock *jeb;
+ struct jffs2_inode_info *f;
+- struct jffs2_raw_node_ref *raw;
+- struct jffs2_node_frag *frag;
+- struct jffs2_full_dnode *fn = NULL;
+- struct jffs2_full_dirent *fd;
+ struct jffs2_inode_cache *ic;
+- __u32 start = 0, end = 0, nrfrags = 0;
+- struct inode *inode;
+- int ret = 0;
++ struct jffs2_eraseblock *jeb;
++ struct jffs2_raw_node_ref *raw;
++ int ret = 0, inum, nlink;
+
+ if (down_interruptible(&c->alloc_sem))
+ return -EINTR;
+
+- spin_lock_bh(&c->erase_completion_lock);
++ for (;;) {
++ spin_lock(&c->erase_completion_lock);
++ if (!c->unchecked_size)
++ break;
++
++ /* We can't start doing GC yet. We haven't finished checking
++ the node CRCs etc. Do it now. */
++
++ /* checked_ino is protected by the alloc_sem */
++ if (c->checked_ino > c->highest_ino) {
++ printk(KERN_CRIT "Checked all inodes but still 0x%x bytes of unchecked space?\n",
++ c->unchecked_size);
++ D1(jffs2_dump_block_lists(c));
++ spin_unlock(&c->erase_completion_lock);
++ BUG();
++ }
++
++ spin_unlock(&c->erase_completion_lock);
++
++ spin_lock(&c->inocache_lock);
++
++ ic = jffs2_get_ino_cache(c, c->checked_ino++);
++
++ if (!ic) {
++ spin_unlock(&c->inocache_lock);
++ continue;
++ }
++
++ if (!ic->nlink) {
++ D1(printk(KERN_DEBUG "Skipping check of ino #%d with nlink zero\n",
++ ic->ino));
++ spin_unlock(&c->inocache_lock);
++ continue;
++ }
++ switch(ic->state) {
++ case INO_STATE_CHECKEDABSENT:
++ case INO_STATE_PRESENT:
++ D1(printk(KERN_DEBUG "Skipping ino #%u already checked\n", ic->ino));
++ spin_unlock(&c->inocache_lock);
++ continue;
++
++ case INO_STATE_GC:
++ case INO_STATE_CHECKING:
++ printk(KERN_WARNING "Inode #%u is in state %d during CRC check phase!\n", ic->ino, ic->state);
++ spin_unlock(&c->inocache_lock);
++ BUG();
++
++ case INO_STATE_READING:
++ /* We need to wait for it to finish, lest we move on
++ and trigger the BUG() above while we haven't yet
++ finished checking all its nodes */
++ D1(printk(KERN_DEBUG "Waiting for ino #%u to finish reading\n", ic->ino));
++ up(&c->alloc_sem);
++ sleep_on_spinunlock(&c->inocache_wq, &c->inocache_lock);
++ return 0;
++
++ default:
++ BUG();
++
++ case INO_STATE_UNCHECKED:
++ ;
++ }
++ ic->state = INO_STATE_CHECKING;
++ spin_unlock(&c->inocache_lock);
++
++ D1(printk(KERN_DEBUG "jffs2_garbage_collect_pass() triggering inode scan of ino#%u\n", ic->ino));
++
++ ret = jffs2_do_crccheck_inode(c, ic);
++ if (ret)
++ printk(KERN_WARNING "Returned error for crccheck of ino #%u. Expect badness...\n", ic->ino);
++
++ jffs2_set_inocache_state(c, ic, INO_STATE_CHECKEDABSENT);
++ up(&c->alloc_sem);
++ return ret;
++ }
+
+ /* First, work out which block we're garbage-collecting */
+ jeb = c->gcblock;
+@@ -127,12 +205,14 @@
+
+ if (!jeb) {
+ printk(KERN_NOTICE "jffs2: Couldn't find erase block to garbage collect!\n");
+- spin_unlock_bh(&c->erase_completion_lock);
++ spin_unlock(&c->erase_completion_lock);
+ up(&c->alloc_sem);
+ return -EIO;
+ }
+
+- D1(printk(KERN_DEBUG "garbage collect from block at phys 0x%08x\n", jeb->offset));
++ D1(printk(KERN_DEBUG "GC from block %08x, used_size %08x, dirty_size %08x, free_size %08x\n", jeb->offset, jeb->used_size, jeb->dirty_size, jeb->free_size));
++ D1(if (c->nextblock)
++ printk(KERN_DEBUG "Nextblock at %08x, used_size %08x, dirty_size %08x, wasted_size %08x, free_size %08x\n", c->nextblock->offset, c->nextblock->used_size, c->nextblock->dirty_size, c->nextblock->wasted_size, c->nextblock->free_size));
+
+ if (!jeb->used_size) {
+ up(&c->alloc_sem);
+@@ -141,92 +221,211 @@
+
+ raw = jeb->gc_node;
+
+- while(raw->flash_offset & 1) {
+- D1(printk(KERN_DEBUG "Node at 0x%08x is obsolete... skipping\n", raw->flash_offset &~3));
+- jeb->gc_node = raw = raw->next_phys;
+- if (!raw) {
++ while(ref_obsolete(raw)) {
++ D1(printk(KERN_DEBUG "Node at 0x%08x is obsolete... skipping\n", ref_offset(raw)));
++ raw = raw->next_phys;
++ if (unlikely(!raw)) {
+ printk(KERN_WARNING "eep. End of raw list while still supposedly nodes to GC\n");
+ printk(KERN_WARNING "erase block at 0x%08x. free_size 0x%08x, dirty_size 0x%08x, used_size 0x%08x\n",
+ jeb->offset, jeb->free_size, jeb->dirty_size, jeb->used_size);
+- spin_unlock_bh(&c->erase_completion_lock);
++ jeb->gc_node = raw;
++ spin_unlock(&c->erase_completion_lock);
+ up(&c->alloc_sem);
+ BUG();
+ }
+ }
+- D1(printk(KERN_DEBUG "Going to garbage collect node at 0x%08x\n", raw->flash_offset &~3));
++ jeb->gc_node = raw;
++
++ D1(printk(KERN_DEBUG "Going to garbage collect node at 0x%08x\n", ref_offset(raw)));
++
+ if (!raw->next_in_ino) {
+ /* Inode-less node. Clean marker, snapshot or something like that */
+- spin_unlock_bh(&c->erase_completion_lock);
++ /* FIXME: If it's something that needs to be copied, including something
++ we don't grok that has JFFS2_NODETYPE_RWCOMPAT_COPY, we should do so */
++ spin_unlock(&c->erase_completion_lock);
+ jffs2_mark_node_obsolete(c, raw);
+ up(&c->alloc_sem);
+ goto eraseit_lock;
+ }
+
+ ic = jffs2_raw_ref_to_ic(raw);
+- D1(printk(KERN_DEBUG "Inode number is #%u\n", ic->ino));
+-
+- spin_unlock_bh(&c->erase_completion_lock);
+
+- D1(printk(KERN_DEBUG "jffs2_garbage_collect_pass collecting from block @0x%08x. Node @0x%08x, ino #%u\n", jeb->offset, raw->flash_offset&~3, ic->ino));
+- if (!ic->nlink) {
+- /* The inode has zero nlink but its nodes weren't yet marked
+- obsolete. This has to be because we're still waiting for
+- the final (close() and) iput() to happen.
+-
+- There's a possibility that the final iput() could have
+- happened while we were contemplating. In order to ensure
+- that we don't cause a new read_inode() (which would fail)
+- for the inode in question, we use ilookup() in this case
+- instead of iget().
+-
+- The nlink can't _become_ zero at this point because we're
+- holding the alloc_sem, and jffs2_do_unlink() would also
+- need that while decrementing nlink on any inode.
++ /* We need to hold the inocache. Either the erase_completion_lock or
++ the inocache_lock are sufficient; we trade down since the inocache_lock
++ causes less contention. */
++ spin_lock(&c->inocache_lock);
++
++ spin_unlock(&c->erase_completion_lock);
++
++ D1(printk(KERN_DEBUG "jffs2_garbage_collect_pass collecting from block @0x%08x. Node @0x%08x(%d), ino #%u\n", jeb->offset, ref_offset(raw), ref_flags(raw), ic->ino));
++
++ /* Three possibilities:
++ 1. Inode is already in-core. We must iget it and do proper
++ updating to its fragtree, etc.
++ 2. Inode is not in-core, node is REF_PRISTINE. We lock the
++ inocache to prevent a read_inode(), copy the node intact.
++ 3. Inode is not in-core, node is not pristine. We must iget()
++ and take the slow path.
+ */
+- inode = ilookup(OFNI_BS_2SFFJ(c), ic->ino);
+- if (!inode) {
+- D1(printk(KERN_DEBUG "ilookup() failed for ino #%u; inode is probably deleted.\n",
++
++ switch(ic->state) {
++ case INO_STATE_CHECKEDABSENT:
++ /* It's been checked, but it's not currently in-core.
++ We can just copy any pristine nodes, but have
++ to prevent anyone else from doing read_inode() while
++ we're at it, so we set the state accordingly */
++ if (ref_flags(raw) == REF_PRISTINE)
++ ic->state = INO_STATE_GC;
++ else {
++ D1(printk(KERN_DEBUG "Ino #%u is absent but node not REF_PRISTINE. Reading.\n",
+ ic->ino));
+- up(&c->alloc_sem);
+- return 0;
+ }
+- } else {
+- /* Inode has links to it still; they're not going away because
+- jffs2_do_unlink() would need the alloc_sem and we have it.
+- Just iget() it, and if read_inode() is necessary that's OK.
++ break;
++
++ case INO_STATE_PRESENT:
++ /* It's in-core. GC must iget() it. */
++ break;
++
++ case INO_STATE_UNCHECKED:
++ case INO_STATE_CHECKING:
++ case INO_STATE_GC:
++ /* Should never happen. We should have finished checking
++ by the time we actually start doing any GC, and since
++ we're holding the alloc_sem, no other garbage collection
++ can happen.
+ */
+- inode = iget(OFNI_BS_2SFFJ(c), ic->ino);
+- if (!inode) {
++ printk(KERN_CRIT "Inode #%u already in state %d in jffs2_garbage_collect_pass()!\n",
++ ic->ino, ic->state);
+ up(&c->alloc_sem);
+- return -ENOMEM;
++ spin_unlock(&c->inocache_lock);
++ BUG();
++
++ case INO_STATE_READING:
++ /* Someone's currently trying to read it. We must wait for
++ them to finish and then go through the full iget() route
++ to do the GC. However, sometimes read_inode() needs to get
++ the alloc_sem() (for marking nodes invalid) so we must
++ drop the alloc_sem before sleeping. */
++
++ up(&c->alloc_sem);
++ D1(printk(KERN_DEBUG "jffs2_garbage_collect_pass() waiting for ino #%u in state %d\n",
++ ic->ino, ic->state));
++ sleep_on_spinunlock(&c->inocache_wq, &c->inocache_lock);
++ /* And because we dropped the alloc_sem we must start again from the
++ beginning. Ponder chance of livelock here -- we're returning success
++ without actually making any progress.
++
++ Q: What are the chances that the inode is back in INO_STATE_READING
++ again by the time we next enter this function? And that this happens
++ enough times to cause a real delay?
++
++ A: Small enough that I don't care :)
++ */
++ return 0;
+ }
++
++ /* OK. Now if the inode is in state INO_STATE_GC, we are going to copy the
++ node intact, and we don't have to muck about with the fragtree etc.
++ because we know it's not in-core. If it _was_ in-core, we go through
++ all the iget() crap anyway */
++
++ if (ic->state == INO_STATE_GC) {
++ spin_unlock(&c->inocache_lock);
++
++ ret = jffs2_garbage_collect_pristine(c, ic, raw);
++
++ spin_lock(&c->inocache_lock);
++ ic->state = INO_STATE_CHECKEDABSENT;
++ wake_up(&c->inocache_wq);
++
++ if (ret != -EBADFD) {
++ spin_unlock(&c->inocache_lock);
++ goto release_sem;
+ }
+- if (is_bad_inode(inode)) {
+- printk(KERN_NOTICE "Eep. read_inode() failed for ino #%u\n", ic->ino);
+- /* NB. This will happen again. We need to do something appropriate here. */
++
++ /* Fall through if it wanted us to, with inocache_lock held */
++ }
++
++ /* Prevent the fairly unlikely race where the gcblock is
++ entirely obsoleted by the final close of a file which had
++ the only valid nodes in the block, followed by erasure,
++ followed by freeing of the ic because the erased block(s)
++ held _all_ the nodes of that inode.... never been seen but
++ it's vaguely possible. */
++
++ inum = ic->ino;
++ nlink = ic->nlink;
++ spin_unlock(&c->inocache_lock);
++
++ f = jffs2_gc_fetch_inode(c, inum, nlink);
++ if (IS_ERR(f))
++ return PTR_ERR(f);
++ if (!f)
++ return 0;
++
++ ret = jffs2_garbage_collect_live(c, jeb, raw, f);
++
++ jffs2_gc_release_inode(c, f);
++
++ release_sem:
+ up(&c->alloc_sem);
+- iput(inode);
+- return -EIO;
++
++ eraseit_lock:
++ /* If we've finished this block, start it erasing */
++ spin_lock(&c->erase_completion_lock);
++
++ eraseit:
++ if (c->gcblock && !c->gcblock->used_size) {
++ D1(printk(KERN_DEBUG "Block at 0x%08x completely obsoleted by GC. Moving to erase_pending_list\n", c->gcblock->offset));
++ /* We're GC'ing an empty block? */
++ list_add_tail(&c->gcblock->list, &c->erase_pending_list);
++ c->gcblock = NULL;
++ c->nr_erasing_blocks++;
++ jffs2_erase_pending_trigger(c);
+ }
++ spin_unlock(&c->erase_completion_lock);
++
++ return ret;
++}
++
++static int jffs2_garbage_collect_live(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb,
++ struct jffs2_raw_node_ref *raw, struct jffs2_inode_info *f)
++{
++ struct jffs2_node_frag *frag;
++ struct jffs2_full_dnode *fn = NULL;
++ struct jffs2_full_dirent *fd;
++ uint32_t start = 0, end = 0, nrfrags = 0;
++ int ret = 0;
+
+- f = JFFS2_INODE_INFO(inode);
+ down(&f->sem);
++
+ /* Now we have the lock for this inode. Check that it's still the one at the head
+ of the list. */
+
+- if (raw->flash_offset & 1) {
++ spin_lock(&c->erase_completion_lock);
++
++ if (c->gcblock != jeb) {
++ spin_unlock(&c->erase_completion_lock);
++ D1(printk(KERN_DEBUG "GC block is no longer gcblock. Restart\n"));
++ goto upnout;
++ }
++ if (ref_obsolete(raw)) {
++ spin_unlock(&c->erase_completion_lock);
+ D1(printk(KERN_DEBUG "node to be GC'd was obsoleted in the meantime.\n"));
+ /* They'll call again */
+ goto upnout;
+ }
++ spin_unlock(&c->erase_completion_lock);
++
+ /* OK. Looks safe. And nobody can get us now because we have the semaphore. Move the block */
+ if (f->metadata && f->metadata->raw == raw) {
+ fn = f->metadata;
+- ret = jffs2_garbage_collect_metadata(c, jeb, inode, fn);
++ ret = jffs2_garbage_collect_metadata(c, jeb, f, fn);
+ goto upnout;
+ }
+
+- for (frag = f->fraglist; frag; frag = frag->next) {
++ /* FIXME. Read node and do lookup? */
++ for (frag = frag_first(&f->fragtree); frag; frag = frag_next(frag)) {
+ if (frag->node && frag->node->raw == raw) {
+ fn = frag->node;
+ end = frag->ofs + frag->size;
+@@ -237,13 +436,22 @@
+ }
+ }
+ if (fn) {
++ if (ref_flags(raw) == REF_PRISTINE) {
++ ret = jffs2_garbage_collect_pristine(c, f->inocache, raw);
++ if (!ret) {
++ /* Urgh. Return it sensibly. */
++ frag->node->raw = f->inocache->nodes;
++ }
++ if (ret != -EBADFD)
++ goto upnout;
++ }
+ /* We found a datanode. Do the GC */
+ if((start >> PAGE_CACHE_SHIFT) < ((end-1) >> PAGE_CACHE_SHIFT)) {
+ /* It crosses a page boundary. Therefore, it must be a hole. */
+- ret = jffs2_garbage_collect_hole(c, jeb, inode, fn, start, end);
++ ret = jffs2_garbage_collect_hole(c, jeb, f, fn, start, end);
+ } else {
+ /* It could still be a hole. But we GC the page this way anyway */
+- ret = jffs2_garbage_collect_dnode(c, jeb, inode, fn, start, end);
++ ret = jffs2_garbage_collect_dnode(c, jeb, f, fn, start, end);
+ }
+ goto upnout;
+ }
+@@ -255,12 +463,13 @@
+ }
+
+ if (fd && fd->ino) {
+- ret = jffs2_garbage_collect_dirent(c, jeb, inode, fd);
++ ret = jffs2_garbage_collect_dirent(c, jeb, f, fd);
+ } else if (fd) {
+- ret = jffs2_garbage_collect_deletion_dirent(c, jeb, inode, fd);
++ ret = jffs2_garbage_collect_deletion_dirent(c, jeb, f, fd);
+ } else {
+- printk(KERN_WARNING "Raw node at 0x%08x wasn't in node lists for ino #%lu\n", raw->flash_offset&~3, inode->i_ino);
+- if (raw->flash_offset & 1) {
++ printk(KERN_WARNING "Raw node at 0x%08x wasn't in node lists for ino #%u\n",
++ ref_offset(raw), f->inocache->ino);
++ if (ref_obsolete(raw)) {
+ printk(KERN_WARNING "But it's obsolete so we don't mind too much\n");
+ } else {
+ ret = -EIO;
+@@ -268,46 +477,197 @@
+ }
+ upnout:
+ up(&f->sem);
+- up(&c->alloc_sem);
+- iput(inode);
+
+- eraseit_lock:
+- /* If we've finished this block, start it erasing */
+- spin_lock_bh(&c->erase_completion_lock);
++ return ret;
++}
+
+- eraseit:
+- if (c->gcblock && !c->gcblock->used_size) {
+- D1(printk(KERN_DEBUG "Block at 0x%08x completely obsoleted by GC. Moving to erase_pending_list\n", c->gcblock->offset));
+- /* We're GC'ing an empty block? */
+- list_add_tail(&c->gcblock->list, &c->erase_pending_list);
+- c->gcblock = NULL;
+- c->nr_erasing_blocks++;
+- jffs2_erase_pending_trigger(c);
++static int jffs2_garbage_collect_pristine(struct jffs2_sb_info *c,
++ struct jffs2_inode_cache *ic,
++ struct jffs2_raw_node_ref *raw)
++{
++ union jffs2_node_union *node;
++ struct jffs2_raw_node_ref *nraw;
++ size_t retlen;
++ int ret;
++ uint32_t phys_ofs, alloclen;
++ uint32_t crc, rawlen;
++ int retried = 0;
++
++ D1(printk(KERN_DEBUG "Going to GC REF_PRISTINE node at 0x%08x\n", ref_offset(raw)));
++
++ rawlen = ref_totlen(c, c->gcblock, raw);
++
++ /* Ask for a small amount of space (or the totlen if smaller) because we
++ don't want to force wastage of the end of a block if splitting would
++ work. */
++ ret = jffs2_reserve_space_gc(c, min_t(uint32_t, sizeof(struct jffs2_raw_inode) + JFFS2_MIN_DATA_LEN,
++ rawlen), &phys_ofs, &alloclen);
++ if (ret)
++ return ret;
++
++ if (alloclen < rawlen) {
++ /* Doesn't fit untouched. We'll go the old route and split it */
++ return -EBADFD;
++ }
++
++ node = kmalloc(rawlen, GFP_KERNEL);
++ if (!node)
++ return -ENOMEM;
++
++ ret = jffs2_flash_read(c, ref_offset(raw), rawlen, &retlen, (char *)node);
++ if (!ret && retlen != rawlen)
++ ret = -EIO;
++ if (ret)
++ goto out_node;
++
++ crc = crc32(0, node, sizeof(struct jffs2_unknown_node)-4);
++ if (je32_to_cpu(node->u.hdr_crc) != crc) {
++ printk(KERN_WARNING "Header CRC failed on REF_PRISTINE node at 0x%08x: Read 0x%08x, calculated 0x%08x\n",
++ ref_offset(raw), je32_to_cpu(node->u.hdr_crc), crc);
++ goto bail;
++ }
++
++ switch(je16_to_cpu(node->u.nodetype)) {
++ case JFFS2_NODETYPE_INODE:
++ crc = crc32(0, node, sizeof(node->i)-8);
++ if (je32_to_cpu(node->i.node_crc) != crc) {
++ printk(KERN_WARNING "Node CRC failed on REF_PRISTINE data node at 0x%08x: Read 0x%08x, calculated 0x%08x\n",
++ ref_offset(raw), je32_to_cpu(node->i.node_crc), crc);
++ goto bail;
++ }
++
++ if (je32_to_cpu(node->i.dsize)) {
++ crc = crc32(0, node->i.data, je32_to_cpu(node->i.csize));
++ if (je32_to_cpu(node->i.data_crc) != crc) {
++ printk(KERN_WARNING "Data CRC failed on REF_PRISTINE data node at 0x%08x: Read 0x%08x, calculated 0x%08x\n",
++ ref_offset(raw), je32_to_cpu(node->i.data_crc), crc);
++ goto bail;
+ }
+- spin_unlock_bh(&c->erase_completion_lock);
++ }
++ break;
++
++ case JFFS2_NODETYPE_DIRENT:
++ crc = crc32(0, node, sizeof(node->d)-8);
++ if (je32_to_cpu(node->d.node_crc) != crc) {
++ printk(KERN_WARNING "Node CRC failed on REF_PRISTINE dirent node at 0x%08x: Read 0x%08x, calculated 0x%08x\n",
++ ref_offset(raw), je32_to_cpu(node->d.node_crc), crc);
++ goto bail;
++ }
++
++ if (node->d.nsize) {
++ crc = crc32(0, node->d.name, node->d.nsize);
++ if (je32_to_cpu(node->d.name_crc) != crc) {
++ printk(KERN_WARNING "Name CRC failed on REF_PRISTINE dirent ode at 0x%08x: Read 0x%08x, calculated 0x%08x\n",
++ ref_offset(raw), je32_to_cpu(node->d.name_crc), crc);
++ goto bail;
++ }
++ }
++ break;
++ default:
++ printk(KERN_WARNING "Unknown node type for REF_PRISTINE node at 0x%08x: 0x%04x\n",
++ ref_offset(raw), je16_to_cpu(node->u.nodetype));
++ goto bail;
++ }
++
++ nraw = jffs2_alloc_raw_node_ref();
++ if (!nraw) {
++ ret = -ENOMEM;
++ goto out_node;
++ }
++
++ /* OK, all the CRCs are good; this node can just be copied as-is. */
++ retry:
++ nraw->flash_offset = phys_ofs;
++ nraw->__totlen = rawlen;
++ nraw->next_phys = NULL;
++
++ ret = jffs2_flash_write(c, phys_ofs, rawlen, &retlen, (char *)node);
++
++ if (ret || (retlen != rawlen)) {
++ printk(KERN_NOTICE "Write of %d bytes at 0x%08x failed. returned %d, retlen %zd\n",
++ rawlen, phys_ofs, ret, retlen);
++ if (retlen) {
++ /* Doesn't belong to any inode */
++ nraw->next_in_ino = NULL;
++
++ nraw->flash_offset |= REF_OBSOLETE;
++ jffs2_add_physical_node_ref(c, nraw);
++ jffs2_mark_node_obsolete(c, nraw);
++ } else {
++ printk(KERN_NOTICE "Not marking the space at 0x%08x as dirty because the flash driver returned retlen zero\n", nraw->flash_offset);
++ jffs2_free_raw_node_ref(nraw);
++ }
++ if (!retried && (nraw == jffs2_alloc_raw_node_ref())) {
++ /* Try to reallocate space and retry */
++ uint32_t dummy;
++ struct jffs2_eraseblock *jeb = &c->blocks[phys_ofs / c->sector_size];
++
++ retried = 1;
++
++ D1(printk(KERN_DEBUG "Retrying failed write of REF_PRISTINE node.\n"));
++
++ ACCT_SANITY_CHECK(c,jeb);
++ D1(ACCT_PARANOIA_CHECK(jeb));
++
++ ret = jffs2_reserve_space_gc(c, rawlen, &phys_ofs, &dummy);
++
++ if (!ret) {
++ D1(printk(KERN_DEBUG "Allocated space at 0x%08x to retry failed write.\n", phys_ofs));
+
++ ACCT_SANITY_CHECK(c,jeb);
++ D1(ACCT_PARANOIA_CHECK(jeb));
++
++ goto retry;
++ }
++ D1(printk(KERN_DEBUG "Failed to allocate space to retry failed write: %d!\n", ret));
++ jffs2_free_raw_node_ref(nraw);
++ }
++
++ if (!ret)
++ ret = -EIO;
++ goto out_node;
++ }
++ nraw->flash_offset |= REF_PRISTINE;
++ jffs2_add_physical_node_ref(c, nraw);
++
++ /* Link into per-inode list. This is safe because of the ic
++ state being INO_STATE_GC. Note that if we're doing this
++ for an inode which is in-code, the 'nraw' pointer is then
++ going to be fetched from ic->nodes by our caller. */
++ nraw->next_in_ino = ic->nodes;
++ ic->nodes = nraw;
++
++ jffs2_mark_node_obsolete(c, raw);
++ D1(printk(KERN_DEBUG "WHEEE! GC REF_PRISTINE node at 0x%08x succeeded\n", ref_offset(raw)));
++
++ out_node:
++ kfree(node);
+ return ret;
++ bail:
++ ret = -EBADFD;
++ goto out_node;
+ }
+
+ static int jffs2_garbage_collect_metadata(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb,
+- struct inode *inode, struct jffs2_full_dnode *fn)
++ struct jffs2_inode_info *f, struct jffs2_full_dnode *fn)
+ {
+- struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode);
+ struct jffs2_full_dnode *new_fn;
+ struct jffs2_raw_inode ri;
+- unsigned short dev;
++ jint16_t dev;
+ char *mdata = NULL, mdatalen = 0;
+- __u32 alloclen, phys_ofs;
++ uint32_t alloclen, phys_ofs;
+ int ret;
+
+- if (S_ISBLK(inode->i_mode) || S_ISCHR(inode->i_mode)) {
++ if (S_ISBLK(JFFS2_F_I_MODE(f)) ||
++ S_ISCHR(JFFS2_F_I_MODE(f)) ) {
+ /* For these, we don't actually need to read the old node */
+- dev = (MAJOR(to_kdev_t(inode->i_rdev)) << 8) |
+- MINOR(to_kdev_t(inode->i_rdev));
++ /* FIXME: for minor or major > 255. */
++ dev = cpu_to_je16(((JFFS2_F_I_RDEV_MAJ(f) << 8) |
++ JFFS2_F_I_RDEV_MIN(f)));
+ mdata = (char *)&dev;
+ mdatalen = sizeof(dev);
+ D1(printk(KERN_DEBUG "jffs2_garbage_collect_metadata(): Writing %d bytes of kdev_t\n", mdatalen));
+- } else if (S_ISLNK(inode->i_mode)) {
++ } else if (S_ISLNK(JFFS2_F_I_MODE(f))) {
+ mdatalen = fn->size;
+ mdata = kmalloc(fn->size, GFP_KERNEL);
+ if (!mdata) {
+@@ -326,34 +686,34 @@
+
+ ret = jffs2_reserve_space_gc(c, sizeof(ri) + mdatalen, &phys_ofs, &alloclen);
+ if (ret) {
+- printk(KERN_WARNING "jffs2_reserve_space_gc of %d bytes for garbage_collect_metadata failed: %d\n",
++ printk(KERN_WARNING "jffs2_reserve_space_gc of %zd bytes for garbage_collect_metadata failed: %d\n",
+ sizeof(ri)+ mdatalen, ret);
+ goto out;
+ }
+
+ memset(&ri, 0, sizeof(ri));
+- ri.magic = JFFS2_MAGIC_BITMASK;
+- ri.nodetype = JFFS2_NODETYPE_INODE;
+- ri.totlen = sizeof(ri) + mdatalen;
+- ri.hdr_crc = crc32(0, &ri, sizeof(struct jffs2_unknown_node)-4);
+-
+- ri.ino = inode->i_ino;
+- ri.version = ++f->highest_version;
+- ri.mode = inode->i_mode;
+- ri.uid = inode->i_uid;
+- ri.gid = inode->i_gid;
+- ri.isize = inode->i_size;
+- ri.atime = inode->i_atime;
+- ri.ctime = inode->i_ctime;
+- ri.mtime = inode->i_mtime;
+- ri.offset = 0;
+- ri.csize = mdatalen;
+- ri.dsize = mdatalen;
++ ri.magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
++ ri.nodetype = cpu_to_je16(JFFS2_NODETYPE_INODE);
++ ri.totlen = cpu_to_je32(sizeof(ri) + mdatalen);
++ ri.hdr_crc = cpu_to_je32(crc32(0, &ri, sizeof(struct jffs2_unknown_node)-4));
++
++ ri.ino = cpu_to_je32(f->inocache->ino);
++ ri.version = cpu_to_je32(++f->highest_version);
++ ri.mode = cpu_to_jemode(JFFS2_F_I_MODE(f));
++ ri.uid = cpu_to_je16(JFFS2_F_I_UID(f));
++ ri.gid = cpu_to_je16(JFFS2_F_I_GID(f));
++ ri.isize = cpu_to_je32(JFFS2_F_I_SIZE(f));
++ ri.atime = cpu_to_je32(JFFS2_F_I_ATIME(f));
++ ri.ctime = cpu_to_je32(JFFS2_F_I_CTIME(f));
++ ri.mtime = cpu_to_je32(JFFS2_F_I_MTIME(f));
++ ri.offset = cpu_to_je32(0);
++ ri.csize = cpu_to_je32(mdatalen);
++ ri.dsize = cpu_to_je32(mdatalen);
+ ri.compr = JFFS2_COMPR_NONE;
+- ri.node_crc = crc32(0, &ri, sizeof(ri)-8);
+- ri.data_crc = crc32(0, mdata, mdatalen);
++ ri.node_crc = cpu_to_je32(crc32(0, &ri, sizeof(ri)-8));
++ ri.data_crc = cpu_to_je32(crc32(0, mdata, mdatalen));
+
+- new_fn = jffs2_write_dnode(inode, &ri, mdata, mdatalen, phys_ofs, NULL);
++ new_fn = jffs2_write_dnode(c, f, &ri, mdata, mdatalen, phys_ofs, ALLOC_GC);
+
+ if (IS_ERR(new_fn)) {
+ printk(KERN_WARNING "Error writing new dnode: %ld\n", PTR_ERR(new_fn));
+@@ -364,41 +724,40 @@
+ jffs2_free_full_dnode(fn);
+ f->metadata = new_fn;
+ out:
+- if (S_ISLNK(inode->i_mode))
++ if (S_ISLNK(JFFS2_F_I_MODE(f)))
+ kfree(mdata);
+ return ret;
+ }
+
+ static int jffs2_garbage_collect_dirent(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb,
+- struct inode *inode, struct jffs2_full_dirent *fd)
++ struct jffs2_inode_info *f, struct jffs2_full_dirent *fd)
+ {
+- struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode);
+ struct jffs2_full_dirent *new_fd;
+ struct jffs2_raw_dirent rd;
+- __u32 alloclen, phys_ofs;
++ uint32_t alloclen, phys_ofs;
+ int ret;
+
+- rd.magic = JFFS2_MAGIC_BITMASK;
+- rd.nodetype = JFFS2_NODETYPE_DIRENT;
++ rd.magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
++ rd.nodetype = cpu_to_je16(JFFS2_NODETYPE_DIRENT);
+ rd.nsize = strlen(fd->name);
+- rd.totlen = sizeof(rd) + rd.nsize;
+- rd.hdr_crc = crc32(0, &rd, sizeof(struct jffs2_unknown_node)-4);
++ rd.totlen = cpu_to_je32(sizeof(rd) + rd.nsize);
++ rd.hdr_crc = cpu_to_je32(crc32(0, &rd, sizeof(struct jffs2_unknown_node)-4));
+
+- rd.pino = inode->i_ino;
+- rd.version = ++f->highest_version;
+- rd.ino = fd->ino;
+- rd.mctime = max(inode->i_mtime, inode->i_ctime);
++ rd.pino = cpu_to_je32(f->inocache->ino);
++ rd.version = cpu_to_je32(++f->highest_version);
++ rd.ino = cpu_to_je32(fd->ino);
++ rd.mctime = cpu_to_je32(max(JFFS2_F_I_MTIME(f), JFFS2_F_I_CTIME(f)));
+ rd.type = fd->type;
+- rd.node_crc = crc32(0, &rd, sizeof(rd)-8);
+- rd.name_crc = crc32(0, fd->name, rd.nsize);
++ rd.node_crc = cpu_to_je32(crc32(0, &rd, sizeof(rd)-8));
++ rd.name_crc = cpu_to_je32(crc32(0, fd->name, rd.nsize));
+
+ ret = jffs2_reserve_space_gc(c, sizeof(rd)+rd.nsize, &phys_ofs, &alloclen);
+ if (ret) {
+- printk(KERN_WARNING "jffs2_reserve_space_gc of %d bytes for garbage_collect_dirent failed: %d\n",
++ printk(KERN_WARNING "jffs2_reserve_space_gc of %zd bytes for garbage_collect_dirent failed: %d\n",
+ sizeof(rd)+rd.nsize, ret);
+ return ret;
+ }
+- new_fd = jffs2_write_dirent(inode, &rd, fd->name, rd.nsize, phys_ofs, NULL);
++ new_fd = jffs2_write_dirent(c, f, &rd, fd->name, rd.nsize, phys_ofs, ALLOC_GC);
+
+ if (IS_ERR(new_fd)) {
+ printk(KERN_WARNING "jffs2_write_dirent in garbage_collect_dirent failed: %ld\n", PTR_ERR(new_fd));
+@@ -409,19 +768,98 @@
+ }
+
+ static int jffs2_garbage_collect_deletion_dirent(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb,
+- struct inode *inode, struct jffs2_full_dirent *fd)
++ struct jffs2_inode_info *f, struct jffs2_full_dirent *fd)
+ {
+- struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode);
+ struct jffs2_full_dirent **fdp = &f->dents;
+ int found = 0;
+
+- /* FIXME: When we run on NAND flash, we need to work out whether
+- this deletion dirent is still needed to actively delete a
+- 'real' dirent with the same name that's still somewhere else
+- on the flash. For now, we know that we've actually obliterated
+- all the older dirents when they became obsolete, so we didn't
+- really need to write the deletion to flash in the first place.
+- */
++ /* On a medium where we can't actually mark nodes obsolete
++ pernamently, such as NAND flash, we need to work out
++ whether this deletion dirent is still needed to actively
++ delete a 'real' dirent with the same name that's still
++ somewhere else on the flash. */
++ if (!jffs2_can_mark_obsolete(c)) {
++ struct jffs2_raw_dirent *rd;
++ struct jffs2_raw_node_ref *raw;
++ int ret;
++ size_t retlen;
++ int name_len = strlen(fd->name);
++ uint32_t name_crc = crc32(0, fd->name, name_len);
++ uint32_t rawlen = ref_totlen(c, jeb, fd->raw);
++
++ rd = kmalloc(rawlen, GFP_KERNEL);
++ if (!rd)
++ return -ENOMEM;
++
++ /* Prevent the erase code from nicking the obsolete node refs while
++ we're looking at them. I really don't like this extra lock but
++ can't see any alternative. Suggestions on a postcard to... */
++ down(&c->erase_free_sem);
++
++ for (raw = f->inocache->nodes; raw != (void *)f->inocache; raw = raw->next_in_ino) {
++
++ /* We only care about obsolete ones */
++ if (!(ref_obsolete(raw)))
++ continue;
++
++ /* Any dirent with the same name is going to have the same length... */
++ if (ref_totlen(c, NULL, raw) != rawlen)
++ continue;
++
++ /* Doesn't matter if there's one in the same erase block. We're going to
++ delete it too at the same time. */
++ if ((raw->flash_offset & ~(c->sector_size-1)) ==
++ (fd->raw->flash_offset & ~(c->sector_size-1)))
++ continue;
++
++ D1(printk(KERN_DEBUG "Check potential deletion dirent at %08x\n", ref_offset(raw)));
++
++ /* This is an obsolete node belonging to the same directory, and it's of the right
++ length. We need to take a closer look...*/
++ ret = jffs2_flash_read(c, ref_offset(raw), rawlen, &retlen, (char *)rd);
++ if (ret) {
++ printk(KERN_WARNING "jffs2_g_c_deletion_dirent(): Read error (%d) reading obsolete node at %08x\n", ret, ref_offset(raw));
++ /* If we can't read it, we don't need to continue to obsolete it. Continue */
++ continue;
++ }
++ if (retlen != rawlen) {
++ printk(KERN_WARNING "jffs2_g_c_deletion_dirent(): Short read (%zd not %zd) reading header from obsolete node at %08x\n",
++ retlen, rawlen, ref_offset(raw));
++ continue;
++ }
++
++ if (je16_to_cpu(rd->nodetype) != JFFS2_NODETYPE_DIRENT)
++ continue;
++
++ /* If the name CRC doesn't match, skip */
++ if (je32_to_cpu(rd->name_crc) != name_crc)
++ continue;
++
++ /* If the name length doesn't match, or it's another deletion dirent, skip */
++ if (rd->nsize != name_len || !je32_to_cpu(rd->ino))
++ continue;
++
++ /* OK, check the actual name now */
++ if (memcmp(rd->name, fd->name, name_len))
++ continue;
++
++ /* OK. The name really does match. There really is still an older node on
++ the flash which our deletion dirent obsoletes. So we have to write out
++ a new deletion dirent to replace it */
++ up(&c->erase_free_sem);
++
++ D1(printk(KERN_DEBUG "Deletion dirent at %08x still obsoletes real dirent \"%s\" at %08x for ino #%u\n",
++ ref_offset(fd->raw), fd->name, ref_offset(raw), je32_to_cpu(rd->ino)));
++ kfree(rd);
++
++ return jffs2_garbage_collect_dirent(c, jeb, f, fd);
++ }
++
++ up(&c->erase_free_sem);
++ kfree(rd);
++ }
++
++ /* No need for it any more. Just mark it obsolete and remove it from the list */
+ while (*fdp) {
+ if ((*fdp) == fd) {
+ found = 1;
+@@ -431,7 +869,7 @@
+ fdp = &(*fdp)->next;
+ }
+ if (!found) {
+- printk(KERN_WARNING "Deletion dirent \"%s\" not found in list for ino #%lu\n", fd->name, inode->i_ino);
++ printk(KERN_WARNING "Deletion dirent \"%s\" not found in list for ino #%u\n", fd->name, f->inocache->ino);
+ }
+ jffs2_mark_node_obsolete(c, fd->raw);
+ jffs2_free_full_dirent(fd);
+@@ -439,93 +877,95 @@
+ }
+
+ static int jffs2_garbage_collect_hole(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb,
+- struct inode *inode, struct jffs2_full_dnode *fn,
+- __u32 start, __u32 end)
++ struct jffs2_inode_info *f, struct jffs2_full_dnode *fn,
++ uint32_t start, uint32_t end)
+ {
+- struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode);
+ struct jffs2_raw_inode ri;
+ struct jffs2_node_frag *frag;
+ struct jffs2_full_dnode *new_fn;
+- __u32 alloclen, phys_ofs;
++ uint32_t alloclen, phys_ofs;
+ int ret;
+
+- D1(printk(KERN_DEBUG "Writing replacement hole node for ino #%lu from offset 0x%x to 0x%x\n",
+- inode->i_ino, start, end));
++ D1(printk(KERN_DEBUG "Writing replacement hole node for ino #%u from offset 0x%x to 0x%x\n",
++ f->inocache->ino, start, end));
+
+ memset(&ri, 0, sizeof(ri));
+
+ if(fn->frags > 1) {
+ size_t readlen;
+- __u32 crc;
++ uint32_t crc;
+ /* It's partially obsoleted by a later write. So we have to
+ write it out again with the _same_ version as before */
+- ret = c->mtd->read(c->mtd, fn->raw->flash_offset & ~3, sizeof(ri), &readlen, (char *)&ri);
++ ret = jffs2_flash_read(c, ref_offset(fn->raw), sizeof(ri), &readlen, (char *)&ri);
+ if (readlen != sizeof(ri) || ret) {
+- printk(KERN_WARNING "Node read failed in jffs2_garbage_collect_hole. Ret %d, retlen %d. Data will be lost by writing new hold node\n", ret, readlen);
++ printk(KERN_WARNING "Node read failed in jffs2_garbage_collect_hole. Ret %d, retlen %zd. Data will be lost by writing new hole node\n", ret, readlen);
+ goto fill;
+ }
+- if (ri.nodetype != JFFS2_NODETYPE_INODE) {
++ if (je16_to_cpu(ri.nodetype) != JFFS2_NODETYPE_INODE) {
+ printk(KERN_WARNING "jffs2_garbage_collect_hole: Node at 0x%08x had node type 0x%04x instead of JFFS2_NODETYPE_INODE(0x%04x)\n",
+- fn->raw->flash_offset & ~3, ri.nodetype, JFFS2_NODETYPE_INODE);
++ ref_offset(fn->raw),
++ je16_to_cpu(ri.nodetype), JFFS2_NODETYPE_INODE);
+ return -EIO;
+ }
+- if (ri.totlen != sizeof(ri)) {
+- printk(KERN_WARNING "jffs2_garbage_collect_hole: Node at 0x%08x had totlen 0x%x instead of expected 0x%x\n",
+- fn->raw->flash_offset & ~3, ri.totlen, sizeof(ri));
++ if (je32_to_cpu(ri.totlen) != sizeof(ri)) {
++ printk(KERN_WARNING "jffs2_garbage_collect_hole: Node at 0x%08x had totlen 0x%x instead of expected 0x%zx\n",
++ ref_offset(fn->raw),
++ je32_to_cpu(ri.totlen), sizeof(ri));
+ return -EIO;
+ }
+ crc = crc32(0, &ri, sizeof(ri)-8);
+- if (crc != ri.node_crc) {
++ if (crc != je32_to_cpu(ri.node_crc)) {
+ printk(KERN_WARNING "jffs2_garbage_collect_hole: Node at 0x%08x had CRC 0x%08x which doesn't match calculated CRC 0x%08x\n",
+- fn->raw->flash_offset & ~3, ri.node_crc, crc);
++ ref_offset(fn->raw),
++ je32_to_cpu(ri.node_crc), crc);
+ /* FIXME: We could possibly deal with this by writing new holes for each frag */
+- printk(KERN_WARNING "Data in the range 0x%08x to 0x%08x of inode #%lu will be lost\n",
+- start, end, inode->i_ino);
++ printk(KERN_WARNING "Data in the range 0x%08x to 0x%08x of inode #%u will be lost\n",
++ start, end, f->inocache->ino);
+ goto fill;
+ }
+ if (ri.compr != JFFS2_COMPR_ZERO) {
+- printk(KERN_WARNING "jffs2_garbage_collect_hole: Node 0x%08x wasn't a hole node!\n", fn->raw->flash_offset & ~3);
+- printk(KERN_WARNING "Data in the range 0x%08x to 0x%08x of inode #%lu will be lost\n",
+- start, end, inode->i_ino);
++ printk(KERN_WARNING "jffs2_garbage_collect_hole: Node 0x%08x wasn't a hole node!\n", ref_offset(fn->raw));
++ printk(KERN_WARNING "Data in the range 0x%08x to 0x%08x of inode #%u will be lost\n",
++ start, end, f->inocache->ino);
+ goto fill;
+ }
+ } else {
+ fill:
+- ri.magic = JFFS2_MAGIC_BITMASK;
+- ri.nodetype = JFFS2_NODETYPE_INODE;
+- ri.totlen = sizeof(ri);
+- ri.hdr_crc = crc32(0, &ri, sizeof(struct jffs2_unknown_node)-4);
+-
+- ri.ino = inode->i_ino;
+- ri.version = ++f->highest_version;
+- ri.offset = start;
+- ri.dsize = end - start;
+- ri.csize = 0;
++ ri.magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
++ ri.nodetype = cpu_to_je16(JFFS2_NODETYPE_INODE);
++ ri.totlen = cpu_to_je32(sizeof(ri));
++ ri.hdr_crc = cpu_to_je32(crc32(0, &ri, sizeof(struct jffs2_unknown_node)-4));
++
++ ri.ino = cpu_to_je32(f->inocache->ino);
++ ri.version = cpu_to_je32(++f->highest_version);
++ ri.offset = cpu_to_je32(start);
++ ri.dsize = cpu_to_je32(end - start);
++ ri.csize = cpu_to_je32(0);
+ ri.compr = JFFS2_COMPR_ZERO;
+ }
+- ri.mode = inode->i_mode;
+- ri.uid = inode->i_uid;
+- ri.gid = inode->i_gid;
+- ri.isize = inode->i_size;
+- ri.atime = inode->i_atime;
+- ri.ctime = inode->i_ctime;
+- ri.mtime = inode->i_mtime;
+- ri.data_crc = 0;
+- ri.node_crc = crc32(0, &ri, sizeof(ri)-8);
++ ri.mode = cpu_to_jemode(JFFS2_F_I_MODE(f));
++ ri.uid = cpu_to_je16(JFFS2_F_I_UID(f));
++ ri.gid = cpu_to_je16(JFFS2_F_I_GID(f));
++ ri.isize = cpu_to_je32(JFFS2_F_I_SIZE(f));
++ ri.atime = cpu_to_je32(JFFS2_F_I_ATIME(f));
++ ri.ctime = cpu_to_je32(JFFS2_F_I_CTIME(f));
++ ri.mtime = cpu_to_je32(JFFS2_F_I_MTIME(f));
++ ri.data_crc = cpu_to_je32(0);
++ ri.node_crc = cpu_to_je32(crc32(0, &ri, sizeof(ri)-8));
+
+ ret = jffs2_reserve_space_gc(c, sizeof(ri), &phys_ofs, &alloclen);
+ if (ret) {
+- printk(KERN_WARNING "jffs2_reserve_space_gc of %d bytes for garbage_collect_hole failed: %d\n",
++ printk(KERN_WARNING "jffs2_reserve_space_gc of %zd bytes for garbage_collect_hole failed: %d\n",
+ sizeof(ri), ret);
+ return ret;
+ }
+- new_fn = jffs2_write_dnode(inode, &ri, NULL, 0, phys_ofs, NULL);
++ new_fn = jffs2_write_dnode(c, f, &ri, NULL, 0, phys_ofs, ALLOC_GC);
+
+ if (IS_ERR(new_fn)) {
+ printk(KERN_WARNING "Error writing new hole node: %ld\n", PTR_ERR(new_fn));
+ return PTR_ERR(new_fn);
+ }
+- if (ri.version == f->highest_version) {
++ if (je32_to_cpu(ri.version) == f->highest_version) {
+ jffs2_add_full_dnode_to_inode(c, f, new_fn);
+ if (f->metadata) {
+ jffs2_mark_node_obsolete(c, f->metadata->raw);
+@@ -541,12 +981,17 @@
+ * number as before. (Except in case of error -- see 'goto fill;'
+ * above.)
+ */
+- D1(if(fn->frags <= 1) {
++ D1(if(unlikely(fn->frags <= 1)) {
+ printk(KERN_WARNING "jffs2_garbage_collect_hole: Replacing fn with %d frag(s) but new ver %d != highest_version %d of ino #%d\n",
+- fn->frags, ri.version, f->highest_version, ri.ino);
++ fn->frags, je32_to_cpu(ri.version), f->highest_version,
++ je32_to_cpu(ri.ino));
+ });
+
+- for (frag = f->fraglist; frag; frag = frag->next) {
++ /* This is a partially-overlapped hole node. Mark it REF_NORMAL not REF_PRISTINE */
++ mark_ref_normal(new_fn->raw);
++
++ for (frag = jffs2_lookup_node_frag(&f->fragtree, fn->ofs);
++ frag; frag = frag_next(frag)) {
+ if (frag->ofs > fn->size + fn->ofs)
+ break;
+ if (frag->node == fn) {
+@@ -571,49 +1016,146 @@
+ }
+
+ static int jffs2_garbage_collect_dnode(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb,
+- struct inode *inode, struct jffs2_full_dnode *fn,
+- __u32 start, __u32 end)
++ struct jffs2_inode_info *f, struct jffs2_full_dnode *fn,
++ uint32_t start, uint32_t end)
+ {
+- struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode);
+ struct jffs2_full_dnode *new_fn;
+ struct jffs2_raw_inode ri;
+- __u32 alloclen, phys_ofs, offset, orig_end;
++ uint32_t alloclen, phys_ofs, offset, orig_end, orig_start;
+ int ret = 0;
+ unsigned char *comprbuf = NULL, *writebuf;
+- struct page *pg;
++ unsigned long pg;
+ unsigned char *pg_ptr;
+
+-
+ memset(&ri, 0, sizeof(ri));
+
+- D1(printk(KERN_DEBUG "Writing replacement dnode for ino #%lu from offset 0x%x to 0x%x\n",
+- inode->i_ino, start, end));
++ D1(printk(KERN_DEBUG "Writing replacement dnode for ino #%u from offset 0x%x to 0x%x\n",
++ f->inocache->ino, start, end));
+
+ orig_end = end;
++ orig_start = start;
+
++ if (c->nr_free_blocks + c->nr_erasing_blocks > c->resv_blocks_gcmerge) {
++ /* Attempt to do some merging. But only expand to cover logically
++ adjacent frags if the block containing them is already considered
++ to be dirty. Otherwise we end up with GC just going round in
++ circles dirtying the nodes it already wrote out, especially
++ on NAND where we have small eraseblocks and hence a much higher
++ chance of nodes having to be split to cross boundaries. */
+
+- /* If we're looking at the last node in the block we're
+- garbage-collecting, we allow ourselves to merge as if the
+- block was already erasing. We're likely to be GC'ing a
+- partial page, and the next block we GC is likely to have
+- the other half of this page right at the beginning, which
+- means we'd expand it _then_, as nr_erasing_blocks would have
+- increased since we checked, and in doing so would obsolete
+- the partial node which we'd have written here. Meaning that
+- the GC would churn and churn, and just leave dirty blocks in
+- it's wake.
+- */
+- if(c->nr_free_blocks + c->nr_erasing_blocks > JFFS2_RESERVED_BLOCKS_GCMERGE - (fn->raw->next_phys?0:1)) {
+- /* Shitloads of space */
+- /* FIXME: Integrate this properly with GC calculations */
+- start &= ~(PAGE_CACHE_SIZE-1);
+- end = min_t(__u32, start + PAGE_CACHE_SIZE, inode->i_size);
+- D1(printk(KERN_DEBUG "Plenty of free space, so expanding to write from offset 0x%x to 0x%x\n",
+- start, end));
+- if (end < orig_end) {
+- printk(KERN_WARNING "Eep. jffs2_garbage_collect_dnode extended node to write, but it got smaller: start 0x%x, orig_end 0x%x, end 0x%x\n", start, orig_end, end);
+- end = orig_end;
++ struct jffs2_node_frag *frag;
++ uint32_t min, max;
++
++ min = start & ~(PAGE_CACHE_SIZE-1);
++ max = min + PAGE_CACHE_SIZE;
++
++ frag = jffs2_lookup_node_frag(&f->fragtree, start);
++
++ /* BUG_ON(!frag) but that'll happen anyway... */
++
++ BUG_ON(frag->ofs != start);
++
++ /* First grow down... */
++ while((frag = frag_prev(frag)) && frag->ofs >= min) {
++
++ /* If the previous frag doesn't even reach the beginning, there's
++ excessive fragmentation. Just merge. */
++ if (frag->ofs > min) {
++ D1(printk(KERN_DEBUG "Expanding down to cover partial frag (0x%x-0x%x)\n",
++ frag->ofs, frag->ofs+frag->size));
++ start = frag->ofs;
++ continue;
++ }
++ /* OK. This frag holds the first byte of the page. */
++ if (!frag->node || !frag->node->raw) {
++ D1(printk(KERN_DEBUG "First frag in page is hole (0x%x-0x%x). Not expanding down.\n",
++ frag->ofs, frag->ofs+frag->size));
++ break;
++ } else {
++
++ /* OK, it's a frag which extends to the beginning of the page. Does it live
++ in a block which is still considered clean? If so, don't obsolete it.
++ If not, cover it anyway. */
++
++ struct jffs2_raw_node_ref *raw = frag->node->raw;
++ struct jffs2_eraseblock *jeb;
++
++ jeb = &c->blocks[raw->flash_offset / c->sector_size];
++
++ if (jeb == c->gcblock) {
++ D1(printk(KERN_DEBUG "Expanding down to cover frag (0x%x-0x%x) in gcblock at %08x\n",
++ frag->ofs, frag->ofs+frag->size, ref_offset(raw)));
++ start = frag->ofs;
++ break;
+ }
++ if (!ISDIRTY(jeb->dirty_size + jeb->wasted_size)) {
++ D1(printk(KERN_DEBUG "Not expanding down to cover frag (0x%x-0x%x) in clean block %08x\n",
++ frag->ofs, frag->ofs+frag->size, jeb->offset));
++ break;
++ }
++
++ D1(printk(KERN_DEBUG "Expanding down to cover frag (0x%x-0x%x) in dirty block %08x\n",
++ frag->ofs, frag->ofs+frag->size, jeb->offset));
++ start = frag->ofs;
++ break;
++ }
++ }
++
++ /* ... then up */
++
++ /* Find last frag which is actually part of the node we're to GC. */
++ frag = jffs2_lookup_node_frag(&f->fragtree, end-1);
++
++ while((frag = frag_next(frag)) && frag->ofs+frag->size <= max) {
++
++ /* If the previous frag doesn't even reach the beginning, there's lots
++ of fragmentation. Just merge. */
++ if (frag->ofs+frag->size < max) {
++ D1(printk(KERN_DEBUG "Expanding up to cover partial frag (0x%x-0x%x)\n",
++ frag->ofs, frag->ofs+frag->size));
++ end = frag->ofs + frag->size;
++ continue;
++ }
++
++ if (!frag->node || !frag->node->raw) {
++ D1(printk(KERN_DEBUG "Last frag in page is hole (0x%x-0x%x). Not expanding up.\n",
++ frag->ofs, frag->ofs+frag->size));
++ break;
++ } else {
++
++ /* OK, it's a frag which extends to the beginning of the page. Does it live
++ in a block which is still considered clean? If so, don't obsolete it.
++ If not, cover it anyway. */
++
++ struct jffs2_raw_node_ref *raw = frag->node->raw;
++ struct jffs2_eraseblock *jeb;
++
++ jeb = &c->blocks[raw->flash_offset / c->sector_size];
++
++ if (jeb == c->gcblock) {
++ D1(printk(KERN_DEBUG "Expanding up to cover frag (0x%x-0x%x) in gcblock at %08x\n",
++ frag->ofs, frag->ofs+frag->size, ref_offset(raw)));
++ end = frag->ofs + frag->size;
++ break;
++ }
++ if (!ISDIRTY(jeb->dirty_size + jeb->wasted_size)) {
++ D1(printk(KERN_DEBUG "Not expanding up to cover frag (0x%x-0x%x) in clean block %08x\n",
++ frag->ofs, frag->ofs+frag->size, jeb->offset));
++ break;
++ }
++
++ D1(printk(KERN_DEBUG "Expanding up to cover frag (0x%x-0x%x) in dirty block %08x\n",
++ frag->ofs, frag->ofs+frag->size, jeb->offset));
++ end = frag->ofs + frag->size;
++ break;
++ }
++ }
++ D1(printk(KERN_DEBUG "Expanded dnode to write from (0x%x-0x%x) to (0x%x-0x%x)\n",
++ orig_start, orig_end, start, end));
++
++ BUG_ON(end > JFFS2_F_I_SIZE(f));
++ BUG_ON(end < orig_end);
++ BUG_ON(start > orig_start);
+ }
+
+ /* First, use readpage() to read the appropriate page into the page cache */
+@@ -623,63 +1165,57 @@
+ * page OK. We'll actually write it out again in commit_write, which is a little
+ * suboptimal, but at least we're correct.
+ */
+- pg = read_cache_page(inode->i_mapping, start >> PAGE_CACHE_SHIFT, (void *)jffs2_do_readpage_unlock, inode);
++ pg_ptr = jffs2_gc_fetch_page(c, f, start, &pg);
+
+- if (IS_ERR(pg)) {
+- printk(KERN_WARNING "read_cache_page() returned error: %ld\n", PTR_ERR(pg));
+- return PTR_ERR(pg);
++ if (IS_ERR(pg_ptr)) {
++ printk(KERN_WARNING "read_cache_page() returned error: %ld\n", PTR_ERR(pg_ptr));
++ return PTR_ERR(pg_ptr);
+ }
+- pg_ptr = (char *)kmap(pg);
+- comprbuf = kmalloc(end - start, GFP_KERNEL);
+
+ offset = start;
+ while(offset < orig_end) {
+- __u32 datalen;
+- __u32 cdatalen;
++ uint32_t datalen;
++ uint32_t cdatalen;
+ char comprtype = JFFS2_COMPR_NONE;
+
+ ret = jffs2_reserve_space_gc(c, sizeof(ri) + JFFS2_MIN_DATA_LEN, &phys_ofs, &alloclen);
+
+ if (ret) {
+- printk(KERN_WARNING "jffs2_reserve_space_gc of %d bytes for garbage_collect_dnode failed: %d\n",
++ printk(KERN_WARNING "jffs2_reserve_space_gc of %zd bytes for garbage_collect_dnode failed: %d\n",
+ sizeof(ri)+ JFFS2_MIN_DATA_LEN, ret);
+ break;
+ }
+- cdatalen = min(alloclen - sizeof(ri), end - offset);
++ cdatalen = min_t(uint32_t, alloclen - sizeof(ri), end - offset);
+ datalen = end - offset;
+
+ writebuf = pg_ptr + (offset & (PAGE_CACHE_SIZE -1));
+
+- if (comprbuf) {
+- comprtype = jffs2_compress(writebuf, comprbuf, &datalen, &cdatalen);
+- }
+- if (comprtype) {
+- writebuf = comprbuf;
+- } else {
+- datalen = cdatalen;
+- }
+- ri.magic = JFFS2_MAGIC_BITMASK;
+- ri.nodetype = JFFS2_NODETYPE_INODE;
+- ri.totlen = sizeof(ri) + cdatalen;
+- ri.hdr_crc = crc32(0, &ri, sizeof(struct jffs2_unknown_node)-4);
+-
+- ri.ino = inode->i_ino;
+- ri.version = ++f->highest_version;
+- ri.mode = inode->i_mode;
+- ri.uid = inode->i_uid;
+- ri.gid = inode->i_gid;
+- ri.isize = inode->i_size;
+- ri.atime = inode->i_atime;
+- ri.ctime = inode->i_ctime;
+- ri.mtime = inode->i_mtime;
+- ri.offset = offset;
+- ri.csize = cdatalen;
+- ri.dsize = datalen;
++ comprtype = jffs2_compress(writebuf, &comprbuf, &datalen, &cdatalen);
++
++ ri.magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
++ ri.nodetype = cpu_to_je16(JFFS2_NODETYPE_INODE);
++ ri.totlen = cpu_to_je32(sizeof(ri) + cdatalen);
++ ri.hdr_crc = cpu_to_je32(crc32(0, &ri, sizeof(struct jffs2_unknown_node)-4));
++
++ ri.ino = cpu_to_je32(f->inocache->ino);
++ ri.version = cpu_to_je32(++f->highest_version);
++ ri.mode = cpu_to_jemode(JFFS2_F_I_MODE(f));
++ ri.uid = cpu_to_je16(JFFS2_F_I_UID(f));
++ ri.gid = cpu_to_je16(JFFS2_F_I_GID(f));
++ ri.isize = cpu_to_je32(JFFS2_F_I_SIZE(f));
++ ri.atime = cpu_to_je32(JFFS2_F_I_ATIME(f));
++ ri.ctime = cpu_to_je32(JFFS2_F_I_CTIME(f));
++ ri.mtime = cpu_to_je32(JFFS2_F_I_MTIME(f));
++ ri.offset = cpu_to_je32(offset);
++ ri.csize = cpu_to_je32(cdatalen);
++ ri.dsize = cpu_to_je32(datalen);
+ ri.compr = comprtype;
+- ri.node_crc = crc32(0, &ri, sizeof(ri)-8);
+- ri.data_crc = crc32(0, writebuf, cdatalen);
++ ri.node_crc = cpu_to_je32(crc32(0, &ri, sizeof(ri)-8));
++ ri.data_crc = cpu_to_je32(crc32(0, comprbuf, cdatalen));
++
++ new_fn = jffs2_write_dnode(c, f, &ri, comprbuf, cdatalen, phys_ofs, ALLOC_GC);
+
+- new_fn = jffs2_write_dnode(inode, &ri, writebuf, cdatalen, phys_ofs, NULL);
++ jffs2_free_comprbuf(comprbuf, writebuf);
+
+ if (IS_ERR(new_fn)) {
+ printk(KERN_WARNING "Error writing new dnode: %ld\n", PTR_ERR(new_fn));
+@@ -694,12 +1230,8 @@
+ f->metadata = NULL;
+ }
+ }
+- if (comprbuf) kfree(comprbuf);
+
+- kunmap(pg);
+- /* XXX: Does the page get freed automatically? */
+- /* AAA: Judging by the unmount getting stuck in __wait_on_page, nope. */
+- page_cache_release(pg);
++ jffs2_gc_release_page(c, pg_ptr, &pg);
+ return ret;
+ }
+
+diff -Nurb linux-mips-2.4.27/fs/jffs2/ioctl.c linux/fs/jffs2/ioctl.c
+--- linux-mips-2.4.27/fs/jffs2/ioctl.c 2001-10-19 03:24:56.000000000 +0200
++++ linux/fs/jffs2/ioctl.c 2004-11-19 10:25:12.108168024 +0100
+@@ -1,37 +1,13 @@
+ /*
+ * JFFS2 -- Journalling Flash File System, Version 2.
+ *
+- * Copyright (C) 2001 Red Hat, Inc.
++ * Copyright (C) 2001-2003 Red Hat, Inc.
+ *
+- * Created by David Woodhouse <dwmw2@cambridge.redhat.com>
++ * Created by David Woodhouse <dwmw2@redhat.com>
+ *
+- * The original JFFS, from which the design for JFFS2 was derived,
+- * was designed and implemented by Axis Communications AB.
++ * For licensing information, see the file 'LICENCE' in this directory.
+ *
+- * The contents of this file are subject to the Red Hat eCos Public
+- * License Version 1.1 (the "Licence"); you may not use this file
+- * except in compliance with the Licence. You may obtain a copy of
+- * the Licence at http://www.redhat.com/
+- *
+- * Software distributed under the Licence is distributed on an "AS IS"
+- * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
+- * See the Licence for the specific language governing rights and
+- * limitations under the Licence.
+- *
+- * The Original Code is JFFS2 - Journalling Flash File System, version 2
+- *
+- * Alternatively, the contents of this file may be used under the
+- * terms of the GNU General Public License version 2 (the "GPL"), in
+- * which case the provisions of the GPL are applicable instead of the
+- * above. If you wish to allow the use of your version of this file
+- * only under the terms of the GPL and not to allow others to use your
+- * version of this file under the RHEPL, indicate your decision by
+- * deleting the provisions above and replace them with the notice and
+- * other provisions required by the GPL. If you do not delete the
+- * provisions above, a recipient may use your version of this file
+- * under either the RHEPL or the GPL.
+- *
+- * $Id: ioctl.c,v 1.5 2001/03/15 15:38:24 dwmw2 Exp $
++ * $Id: ioctl.c,v 1.8 2003/10/28 16:16:28 dwmw2 Exp $
+ *
+ */
+
+@@ -42,6 +18,6 @@
+ {
+ /* Later, this will provide for lsattr.jffs2 and chattr.jffs2, which
+ will include compression support etc. */
+- return -EINVAL;
++ return -ENOTTY;
+ }
+
+diff -Nurb linux-mips-2.4.27/fs/jffs2/malloc.c linux/fs/jffs2/malloc.c
+--- linux-mips-2.4.27/fs/jffs2/malloc.c 2001-10-19 03:24:56.000000000 +0200
++++ linux/fs/jffs2/malloc.c 2004-11-19 10:25:12.110167720 +0100
+@@ -1,37 +1,13 @@
+ /*
+ * JFFS2 -- Journalling Flash File System, Version 2.
+ *
+- * Copyright (C) 2001 Red Hat, Inc.
++ * Copyright (C) 2001-2003 Red Hat, Inc.
+ *
+- * Created by David Woodhouse <dwmw2@cambridge.redhat.com>
++ * Created by David Woodhouse <dwmw2@redhat.com>
+ *
+- * The original JFFS, from which the design for JFFS2 was derived,
+- * was designed and implemented by Axis Communications AB.
++ * For licensing information, see the file 'LICENCE' in this directory.
+ *
+- * The contents of this file are subject to the Red Hat eCos Public
+- * License Version 1.1 (the "Licence"); you may not use this file
+- * except in compliance with the Licence. You may obtain a copy of
+- * the Licence at http://www.redhat.com/
+- *
+- * Software distributed under the Licence is distributed on an "AS IS"
+- * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
+- * See the Licence for the specific language governing rights and
+- * limitations under the Licence.
+- *
+- * The Original Code is JFFS2 - Journalling Flash File System, version 2
+- *
+- * Alternatively, the contents of this file may be used under the
+- * terms of the GNU General Public License version 2 (the "GPL"), in
+- * which case the provisions of the GPL are applicable instead of the
+- * above. If you wish to allow the use of your version of this file
+- * only under the terms of the GPL and not to allow others to use your
+- * version of this file under the RHEPL, indicate your decision by
+- * deleting the provisions above and replace them with the notice and
+- * other provisions required by the GPL. If you do not delete the
+- * provisions above, a recipient may use your version of this file
+- * under either the RHEPL or the GPL.
+- *
+- * $Id: malloc.c,v 1.16 2001/03/15 15:38:24 dwmw2 Exp $
++ * $Id: malloc.c,v 1.27 2003/10/28 17:14:58 dwmw2 Exp $
+ *
+ */
+
+@@ -47,6 +23,9 @@
+ #define JFFS2_SLAB_POISON 0
+ #endif
+
++// replace this by #define D3 (x) x for cache debugging
++#define D3(x)
++
+ /* These are initialised to NULL in the kernel startup code.
+ If you're porting to other operating systems, beware */
+ static kmem_cache_t *full_dnode_slab;
+@@ -57,57 +36,47 @@
+ static kmem_cache_t *node_frag_slab;
+ static kmem_cache_t *inode_cache_slab;
+
+-void jffs2_free_tmp_dnode_info_list(struct jffs2_tmp_dnode_info *tn)
+-{
+- struct jffs2_tmp_dnode_info *next;
+-
+- while (tn) {
+- next = tn;
+- tn = tn->next;
+- jffs2_free_full_dnode(next->fn);
+- jffs2_free_tmp_dnode_info(next);
+- }
+-}
+-
+-void jffs2_free_full_dirent_list(struct jffs2_full_dirent *fd)
+-{
+- struct jffs2_full_dirent *next;
+-
+- while (fd) {
+- next = fd->next;
+- jffs2_free_full_dirent(fd);
+- fd = next;
+- }
+-}
+-
+ int __init jffs2_create_slab_caches(void)
+ {
+- full_dnode_slab = kmem_cache_create("jffs2_full_dnode", sizeof(struct jffs2_full_dnode), 0, JFFS2_SLAB_POISON, NULL, NULL);
++ full_dnode_slab = kmem_cache_create("jffs2_full_dnode",
++ sizeof(struct jffs2_full_dnode),
++ 0, JFFS2_SLAB_POISON, NULL, NULL);
+ if (!full_dnode_slab)
+ goto err;
+
+- raw_dirent_slab = kmem_cache_create("jffs2_raw_dirent", sizeof(struct jffs2_raw_dirent), 0, JFFS2_SLAB_POISON, NULL, NULL);
++ raw_dirent_slab = kmem_cache_create("jffs2_raw_dirent",
++ sizeof(struct jffs2_raw_dirent),
++ 0, JFFS2_SLAB_POISON, NULL, NULL);
+ if (!raw_dirent_slab)
+ goto err;
+
+- raw_inode_slab = kmem_cache_create("jffs2_raw_inode", sizeof(struct jffs2_raw_inode), 0, JFFS2_SLAB_POISON, NULL, NULL);
++ raw_inode_slab = kmem_cache_create("jffs2_raw_inode",
++ sizeof(struct jffs2_raw_inode),
++ 0, JFFS2_SLAB_POISON, NULL, NULL);
+ if (!raw_inode_slab)
+ goto err;
+
+- tmp_dnode_info_slab = kmem_cache_create("jffs2_tmp_dnode", sizeof(struct jffs2_tmp_dnode_info), 0, JFFS2_SLAB_POISON, NULL, NULL);
++ tmp_dnode_info_slab = kmem_cache_create("jffs2_tmp_dnode",
++ sizeof(struct jffs2_tmp_dnode_info),
++ 0, JFFS2_SLAB_POISON, NULL, NULL);
+ if (!tmp_dnode_info_slab)
+ goto err;
+
+- raw_node_ref_slab = kmem_cache_create("jffs2_raw_node_ref", sizeof(struct jffs2_raw_node_ref), 0, JFFS2_SLAB_POISON, NULL, NULL);
++ raw_node_ref_slab = kmem_cache_create("jffs2_raw_node_ref",
++ sizeof(struct jffs2_raw_node_ref),
++ 0, JFFS2_SLAB_POISON, NULL, NULL);
+ if (!raw_node_ref_slab)
+ goto err;
+
+- node_frag_slab = kmem_cache_create("jffs2_node_frag", sizeof(struct jffs2_node_frag), 0, JFFS2_SLAB_POISON, NULL, NULL);
++ node_frag_slab = kmem_cache_create("jffs2_node_frag",
++ sizeof(struct jffs2_node_frag),
++ 0, JFFS2_SLAB_POISON, NULL, NULL);
+ if (!node_frag_slab)
+ goto err;
+
+- inode_cache_slab = kmem_cache_create("jffs2_inode_cache", sizeof(struct jffs2_inode_cache), 0, JFFS2_SLAB_POISON, NULL, NULL);
+-
++ inode_cache_slab = kmem_cache_create("jffs2_inode_cache",
++ sizeof(struct jffs2_inode_cache),
++ 0, JFFS2_SLAB_POISON, NULL, NULL);
+ if (inode_cache_slab)
+ return 0;
+ err:
+@@ -131,7 +100,6 @@
+ kmem_cache_destroy(node_frag_slab);
+ if(inode_cache_slab)
+ kmem_cache_destroy(inode_cache_slab);
+-
+ }
+
+ struct jffs2_full_dirent *jffs2_alloc_full_dirent(int namesize)
+@@ -146,75 +114,92 @@
+
+ struct jffs2_full_dnode *jffs2_alloc_full_dnode(void)
+ {
+- void *ret = kmem_cache_alloc(full_dnode_slab, GFP_KERNEL);
++ struct jffs2_full_dnode *ret = kmem_cache_alloc(full_dnode_slab, GFP_KERNEL);
++ D3 (printk (KERN_DEBUG "alloc_full_dnode at %p\n", ret));
+ return ret;
+ }
+
+ void jffs2_free_full_dnode(struct jffs2_full_dnode *x)
+ {
++ D3 (printk (KERN_DEBUG "free full_dnode at %p\n", x));
+ kmem_cache_free(full_dnode_slab, x);
+ }
+
+ struct jffs2_raw_dirent *jffs2_alloc_raw_dirent(void)
+ {
+- return kmem_cache_alloc(raw_dirent_slab, GFP_KERNEL);
++ struct jffs2_raw_dirent *ret = kmem_cache_alloc(raw_dirent_slab, GFP_KERNEL);
++ D3 (printk (KERN_DEBUG "alloc_raw_dirent\n", ret));
++ return ret;
+ }
+
+ void jffs2_free_raw_dirent(struct jffs2_raw_dirent *x)
+ {
++ D3 (printk (KERN_DEBUG "free_raw_dirent at %p\n", x));
+ kmem_cache_free(raw_dirent_slab, x);
+ }
+
+ struct jffs2_raw_inode *jffs2_alloc_raw_inode(void)
+ {
+- return kmem_cache_alloc(raw_inode_slab, GFP_KERNEL);
++ struct jffs2_raw_inode *ret = kmem_cache_alloc(raw_inode_slab, GFP_KERNEL);
++ D3 (printk (KERN_DEBUG "alloc_raw_inode at %p\n", ret));
++ return ret;
+ }
+
+ void jffs2_free_raw_inode(struct jffs2_raw_inode *x)
+ {
++ D3 (printk (KERN_DEBUG "free_raw_inode at %p\n", x));
+ kmem_cache_free(raw_inode_slab, x);
+ }
+
+ struct jffs2_tmp_dnode_info *jffs2_alloc_tmp_dnode_info(void)
+ {
+- return kmem_cache_alloc(tmp_dnode_info_slab, GFP_KERNEL);
++ struct jffs2_tmp_dnode_info *ret = kmem_cache_alloc(tmp_dnode_info_slab, GFP_KERNEL);
++ D3 (printk (KERN_DEBUG "alloc_tmp_dnode_info at %p\n", ret));
++ return ret;
+ }
+
+ void jffs2_free_tmp_dnode_info(struct jffs2_tmp_dnode_info *x)
+ {
++ D3 (printk (KERN_DEBUG "free_tmp_dnode_info at %p\n", x));
+ kmem_cache_free(tmp_dnode_info_slab, x);
+ }
+
+ struct jffs2_raw_node_ref *jffs2_alloc_raw_node_ref(void)
+ {
+- return kmem_cache_alloc(raw_node_ref_slab, GFP_KERNEL);
++ struct jffs2_raw_node_ref *ret = kmem_cache_alloc(raw_node_ref_slab, GFP_KERNEL);
++ D3 (printk (KERN_DEBUG "alloc_raw_node_ref at %p\n", ret));
++ return ret;
+ }
+
+ void jffs2_free_raw_node_ref(struct jffs2_raw_node_ref *x)
+ {
++ D3 (printk (KERN_DEBUG "free_raw_node_ref at %p\n", x));
+ kmem_cache_free(raw_node_ref_slab, x);
+ }
+
+ struct jffs2_node_frag *jffs2_alloc_node_frag(void)
+ {
+- return kmem_cache_alloc(node_frag_slab, GFP_KERNEL);
++ struct jffs2_node_frag *ret = kmem_cache_alloc(node_frag_slab, GFP_KERNEL);
++ D3 (printk (KERN_DEBUG "alloc_node_frag at %p\n", ret));
++ return ret;
+ }
+
+ void jffs2_free_node_frag(struct jffs2_node_frag *x)
+ {
++ D3 (printk (KERN_DEBUG "free_node_frag at %p\n", x));
+ kmem_cache_free(node_frag_slab, x);
+ }
+
+ struct jffs2_inode_cache *jffs2_alloc_inode_cache(void)
+ {
+ struct jffs2_inode_cache *ret = kmem_cache_alloc(inode_cache_slab, GFP_KERNEL);
+- D1(printk(KERN_DEBUG "Allocated inocache at %p\n", ret));
++ D3 (printk(KERN_DEBUG "Allocated inocache at %p\n", ret));
+ return ret;
+ }
+
+ void jffs2_free_inode_cache(struct jffs2_inode_cache *x)
+ {
+- D1(printk(KERN_DEBUG "Freeing inocache at %p\n", x));
++ D3 (printk(KERN_DEBUG "Freeing inocache at %p\n", x));
+ kmem_cache_free(inode_cache_slab, x);
+ }
+
+diff -Nurb linux-mips-2.4.27/fs/jffs2/nodelist.c linux/fs/jffs2/nodelist.c
+--- linux-mips-2.4.27/fs/jffs2/nodelist.c 2003-07-05 05:23:44.000000000 +0200
++++ linux/fs/jffs2/nodelist.c 2004-11-19 10:25:12.112167416 +0100
+@@ -1,44 +1,24 @@
+ /*
+ * JFFS2 -- Journalling Flash File System, Version 2.
+ *
+- * Copyright (C) 2001, 2002 Red Hat, Inc.
++ * Copyright (C) 2001-2003 Red Hat, Inc.
+ *
+- * Created by David Woodhouse <dwmw2@cambridge.redhat.com>
++ * Created by David Woodhouse <dwmw2@redhat.com>
+ *
+- * The original JFFS, from which the design for JFFS2 was derived,
+- * was designed and implemented by Axis Communications AB.
++ * For licensing information, see the file 'LICENCE' in this directory.
+ *
+- * The contents of this file are subject to the Red Hat eCos Public
+- * License Version 1.1 (the "Licence"); you may not use this file
+- * except in compliance with the Licence. You may obtain a copy of
+- * the Licence at http://www.redhat.com/
+- *
+- * Software distributed under the Licence is distributed on an "AS IS"
+- * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
+- * See the Licence for the specific language governing rights and
+- * limitations under the Licence.
+- *
+- * The Original Code is JFFS2 - Journalling Flash File System, version 2
+- *
+- * Alternatively, the contents of this file may be used under the
+- * terms of the GNU General Public License version 2 (the "GPL"), in
+- * which case the provisions of the GPL are applicable instead of the
+- * above. If you wish to allow the use of your version of this file
+- * only under the terms of the GPL and not to allow others to use your
+- * version of this file under the RHEPL, indicate your decision by
+- * deleting the provisions above and replace them with the notice and
+- * other provisions required by the GPL. If you do not delete the
+- * provisions above, a recipient may use your version of this file
+- * under either the RHEPL or the GPL.
+- *
+- * $Id: nodelist.c,v 1.30.2.6 2003/02/24 21:49:33 dwmw2 Exp $
++ * $Id: nodelist.c,v 1.86 2003/10/31 15:37:51 dwmw2 Exp $
+ *
+ */
+
+ #include <linux/kernel.h>
+-#include <linux/jffs2.h>
++#include <linux/sched.h>
+ #include <linux/fs.h>
+ #include <linux/mtd/mtd.h>
++#include <linux/rbtree.h>
++#include <linux/crc32.h>
++#include <linux/slab.h>
++#include <linux/pagemap.h>
+ #include "nodelist.h"
+
+ void jffs2_add_fd_to_list(struct jffs2_sb_info *c, struct jffs2_full_dirent *new, struct jffs2_full_dirent **list)
+@@ -78,7 +58,7 @@
+ /* Put a new tmp_dnode_info into the list, keeping the list in
+ order of increasing version
+ */
+-void jffs2_add_tn_to_list(struct jffs2_tmp_dnode_info *tn, struct jffs2_tmp_dnode_info **list)
++static void jffs2_add_tn_to_list(struct jffs2_tmp_dnode_info *tn, struct jffs2_tmp_dnode_info **list)
+ {
+ struct jffs2_tmp_dnode_info **prev = list;
+
+@@ -89,13 +69,37 @@
+ *prev = tn;
+ }
+
++static void jffs2_free_tmp_dnode_info_list(struct jffs2_tmp_dnode_info *tn)
++{
++ struct jffs2_tmp_dnode_info *next;
++
++ while (tn) {
++ next = tn;
++ tn = tn->next;
++ jffs2_free_full_dnode(next->fn);
++ jffs2_free_tmp_dnode_info(next);
++ }
++}
++
++static void jffs2_free_full_dirent_list(struct jffs2_full_dirent *fd)
++{
++ struct jffs2_full_dirent *next;
++
++ while (fd) {
++ next = fd->next;
++ jffs2_free_full_dirent(fd);
++ fd = next;
++ }
++}
++
++
+ /* Get tmp_dnode_info and full_dirent for all non-obsolete nodes associated
+ with this ino, returning the former in order of version */
+
+ int jffs2_get_inode_nodes(struct jffs2_sb_info *c, ino_t ino, struct jffs2_inode_info *f,
+ struct jffs2_tmp_dnode_info **tnp, struct jffs2_full_dirent **fdp,
+- __u32 *highest_version, __u32 *latest_mctime,
+- __u32 *mctime_ver)
++ uint32_t *highest_version, uint32_t *latest_mctime,
++ uint32_t *mctime_ver)
+ {
+ struct jffs2_raw_node_ref *ref = f->inocache->nodes;
+ struct jffs2_tmp_dnode_info *tn, *ret_tn = NULL;
+@@ -109,43 +113,71 @@
+
+ D1(printk(KERN_DEBUG "jffs2_get_inode_nodes(): ino #%lu\n", ino));
+ if (!f->inocache->nodes) {
+- printk(KERN_WARNING "Eep. no nodes for ino #%lu\n", ino);
++ printk(KERN_WARNING "Eep. no nodes for ino #%lu\n", (unsigned long)ino);
+ }
++
++ spin_lock(&c->erase_completion_lock);
++
+ for (ref = f->inocache->nodes; ref && ref->next_in_ino; ref = ref->next_in_ino) {
+ /* Work out whether it's a data node or a dirent node */
+- if (ref->flash_offset & 1) {
++ if (ref_obsolete(ref)) {
+ /* FIXME: On NAND flash we may need to read these */
+- D1(printk(KERN_DEBUG "node at 0x%08x is obsoleted. Ignoring.\n", ref->flash_offset &~3));
++ D1(printk(KERN_DEBUG "node at 0x%08x is obsoleted. Ignoring.\n", ref_offset(ref)));
+ continue;
+ }
+- err = c->mtd->read(c->mtd, (ref->flash_offset & ~3), min(ref->totlen, sizeof(node)), &retlen, (void *)&node);
++ /* We can hold a pointer to a non-obsolete node without the spinlock,
++ but _obsolete_ nodes may disappear at any time, if the block
++ they're in gets erased */
++ spin_unlock(&c->erase_completion_lock);
++
++ cond_resched();
++
++ /* FIXME: point() */
++ err = jffs2_flash_read(c, (ref_offset(ref)),
++ min_t(uint32_t, ref_totlen(c, NULL, ref), sizeof(node)),
++ &retlen, (void *)&node);
+ if (err) {
+- printk(KERN_WARNING "error %d reading node at 0x%08x in get_inode_nodes()\n", err, (ref->flash_offset) & ~3);
++ printk(KERN_WARNING "error %d reading node at 0x%08x in get_inode_nodes()\n", err, ref_offset(ref));
+ goto free_out;
+ }
+
+
+ /* Check we've managed to read at least the common node header */
+- if (retlen < min(ref->totlen, sizeof(node.u))) {
++ if (retlen < min_t(uint32_t, ref_totlen(c, NULL, ref), sizeof(node.u))) {
+ printk(KERN_WARNING "short read in get_inode_nodes()\n");
+ err = -EIO;
+ goto free_out;
+ }
+
+- switch (node.u.nodetype) {
++ switch (je16_to_cpu(node.u.nodetype)) {
+ case JFFS2_NODETYPE_DIRENT:
+- D1(printk(KERN_DEBUG "Node at %08x is a dirent node\n", ref->flash_offset &~3));
++ D1(printk(KERN_DEBUG "Node at %08x (%d) is a dirent node\n", ref_offset(ref), ref_flags(ref)));
++ if (ref_flags(ref) == REF_UNCHECKED) {
++ printk(KERN_WARNING "BUG: Dirent node at 0x%08x never got checked? How?\n", ref_offset(ref));
++ BUG();
++ }
+ if (retlen < sizeof(node.d)) {
+ printk(KERN_WARNING "short read in get_inode_nodes()\n");
+ err = -EIO;
+ goto free_out;
+ }
+- if (node.d.version > *highest_version)
+- *highest_version = node.d.version;
+- if (ref->flash_offset & 1) {
+- /* Obsoleted */
++ /* sanity check */
++ if (PAD((node.d.nsize + sizeof (node.d))) != PAD(je32_to_cpu (node.d.totlen))) {
++ printk(KERN_NOTICE "jffs2_get_inode_nodes(): Illegal nsize in node at 0x%08x: nsize 0x%02x, totlen %04x\n",
++ ref_offset(ref), node.d.nsize, je32_to_cpu(node.d.totlen));
++ jffs2_mark_node_obsolete(c, ref);
++ spin_lock(&c->erase_completion_lock);
+ continue;
+ }
++ if (je32_to_cpu(node.d.version) > *highest_version)
++ *highest_version = je32_to_cpu(node.d.version);
++ if (ref_obsolete(ref)) {
++ /* Obsoleted. This cannot happen, surely? dwmw2 20020308 */
++ printk(KERN_ERR "Dirent node at 0x%08x became obsolete while we weren't looking\n",
++ ref_offset(ref));
++ BUG();
++ }
++
+ fd = jffs2_alloc_full_dirent(node.d.nsize+1);
+ if (!fd) {
+ err = -ENOMEM;
+@@ -153,29 +185,30 @@
+ }
+ memset(fd,0,sizeof(struct jffs2_full_dirent) + node.d.nsize+1);
+ fd->raw = ref;
+- fd->version = node.d.version;
+- fd->ino = node.d.ino;
++ fd->version = je32_to_cpu(node.d.version);
++ fd->ino = je32_to_cpu(node.d.ino);
+ fd->type = node.d.type;
+
+ /* Pick out the mctime of the latest dirent */
+ if(fd->version > *mctime_ver) {
+ *mctime_ver = fd->version;
+- *latest_mctime = node.d.mctime;
++ *latest_mctime = je32_to_cpu(node.d.mctime);
+ }
+
+ /* memcpy as much of the name as possible from the raw
+ dirent we've already read from the flash
+ */
+ if (retlen > sizeof(struct jffs2_raw_dirent))
+- memcpy(&fd->name[0], &node.d.name[0], min((__u32)node.d.nsize, (retlen-sizeof(struct jffs2_raw_dirent))));
++ memcpy(&fd->name[0], &node.d.name[0], min_t(uint32_t, node.d.nsize, (retlen-sizeof(struct jffs2_raw_dirent))));
+
+ /* Do we need to copy any more of the name directly
+ from the flash?
+ */
+ if (node.d.nsize + sizeof(struct jffs2_raw_dirent) > retlen) {
++ /* FIXME: point() */
+ int already = retlen - sizeof(struct jffs2_raw_dirent);
+
+- err = c->mtd->read(c->mtd, (ref->flash_offset & ~3) + retlen,
++ err = jffs2_flash_read(c, (ref_offset(ref)) + retlen,
+ node.d.nsize - already, &retlen, &fd->name[already]);
+ if (!err && retlen != node.d.nsize - already)
+ err = -EIO;
+@@ -196,21 +229,126 @@
+ break;
+
+ case JFFS2_NODETYPE_INODE:
+- D1(printk(KERN_DEBUG "Node at %08x is a data node\n", ref->flash_offset &~3));
++ D1(printk(KERN_DEBUG "Node at %08x (%d) is a data node\n", ref_offset(ref), ref_flags(ref)));
+ if (retlen < sizeof(node.i)) {
+ printk(KERN_WARNING "read too short for dnode\n");
+ err = -EIO;
+ goto free_out;
+ }
+- if (node.i.version > *highest_version)
+- *highest_version = node.i.version;
+- D1(printk(KERN_DEBUG "version %d, highest_version now %d\n", node.i.version, *highest_version));
+-
+- if (ref->flash_offset & 1) {
+- D1(printk(KERN_DEBUG "obsoleted\n"));
+- /* Obsoleted */
++ if (je32_to_cpu(node.i.version) > *highest_version)
++ *highest_version = je32_to_cpu(node.i.version);
++ D1(printk(KERN_DEBUG "version %d, highest_version now %d\n", je32_to_cpu(node.i.version), *highest_version));
++
++ if (ref_obsolete(ref)) {
++ /* Obsoleted. This cannot happen, surely? dwmw2 20020308 */
++ printk(KERN_ERR "Inode node at 0x%08x became obsolete while we weren't looking\n",
++ ref_offset(ref));
++ BUG();
++ }
++
++ /* If we've never checked the CRCs on this node, check them now. */
++ if (ref_flags(ref) == REF_UNCHECKED) {
++ uint32_t crc, len;
++ struct jffs2_eraseblock *jeb;
++
++ crc = crc32(0, &node, sizeof(node.i)-8);
++ if (crc != je32_to_cpu(node.i.node_crc)) {
++ printk(KERN_NOTICE "jffs2_get_inode_nodes(): CRC failed on node at 0x%08x: Read 0x%08x, calculated 0x%08x\n",
++ ref_offset(ref), je32_to_cpu(node.i.node_crc), crc);
++ jffs2_mark_node_obsolete(c, ref);
++ spin_lock(&c->erase_completion_lock);
+ continue;
+ }
++
++ /* sanity checks */
++ if ( je32_to_cpu(node.i.offset) > je32_to_cpu(node.i.isize) ||
++ PAD(je32_to_cpu(node.i.csize) + sizeof (node.i)) != PAD(je32_to_cpu(node.i.totlen))) {
++ printk(KERN_NOTICE "jffs2_get_inode_nodes(): Inode corrupted at 0x%08x, totlen %d, #ino %d, version %d, isize %d, csize %d, dsize %d \n",
++ ref_offset(ref), je32_to_cpu(node.i.totlen), je32_to_cpu(node.i.ino),
++ je32_to_cpu(node.i.version), je32_to_cpu(node.i.isize),
++ je32_to_cpu(node.i.csize), je32_to_cpu(node.i.dsize));
++ jffs2_mark_node_obsolete(c, ref);
++ spin_lock(&c->erase_completion_lock);
++ continue;
++ }
++
++ if (node.i.compr != JFFS2_COMPR_ZERO && je32_to_cpu(node.i.csize)) {
++ unsigned char *buf=NULL;
++ uint32_t pointed = 0;
++#ifndef __ECOS
++ if (c->mtd->point) {
++ err = c->mtd->point (c->mtd, ref_offset(ref) + sizeof(node.i), je32_to_cpu(node.i.csize),
++ &retlen, &buf);
++ if (!err && retlen < je32_to_cpu(node.i.csize)) {
++ D1(printk(KERN_DEBUG "MTD point returned len too short: 0x%zx\n", retlen));
++ c->mtd->unpoint(c->mtd, buf, ref_offset(ref) + sizeof(node.i), je32_to_cpu(node.i.csize));
++ } else if (err){
++ D1(printk(KERN_DEBUG "MTD point failed %d\n", err));
++ } else
++ pointed = 1; /* succefully pointed to device */
++ }
++#endif
++ if(!pointed){
++ buf = kmalloc(je32_to_cpu(node.i.csize), GFP_KERNEL);
++ if (!buf)
++ return -ENOMEM;
++
++ err = jffs2_flash_read(c, ref_offset(ref) + sizeof(node.i), je32_to_cpu(node.i.csize),
++ &retlen, buf);
++ if (!err && retlen != je32_to_cpu(node.i.csize))
++ err = -EIO;
++ if (err) {
++ kfree(buf);
++ return err;
++ }
++ }
++ crc = crc32(0, buf, je32_to_cpu(node.i.csize));
++ if(!pointed)
++ kfree(buf);
++#ifndef __ECOS
++ else
++ c->mtd->unpoint(c->mtd, buf, ref_offset(ref) + sizeof(node.i), je32_to_cpu(node.i.csize));
++#endif
++
++ if (crc != je32_to_cpu(node.i.data_crc)) {
++ printk(KERN_NOTICE "jffs2_get_inode_nodes(): Data CRC failed on node at 0x%08x: Read 0x%08x, calculated 0x%08x\n",
++ ref_offset(ref), je32_to_cpu(node.i.data_crc), crc);
++ jffs2_mark_node_obsolete(c, ref);
++ spin_lock(&c->erase_completion_lock);
++ continue;
++ }
++
++ }
++
++ /* Mark the node as having been checked and fix the accounting accordingly */
++ spin_lock(&c->erase_completion_lock);
++ jeb = &c->blocks[ref->flash_offset / c->sector_size];
++ len = ref_totlen(c, jeb, ref);
++
++ jeb->used_size += len;
++ jeb->unchecked_size -= len;
++ c->used_size += len;
++ c->unchecked_size -= len;
++
++ /* If node covers at least a whole page, or if it starts at the
++ beginning of a page and runs to the end of the file, or if
++ it's a hole node, mark it REF_PRISTINE, else REF_NORMAL.
++
++ If it's actually overlapped, it'll get made NORMAL (or OBSOLETE)
++ when the overlapping node(s) get added to the tree anyway.
++ */
++ if ((je32_to_cpu(node.i.dsize) >= PAGE_CACHE_SIZE) ||
++ ( ((je32_to_cpu(node.i.offset)&(PAGE_CACHE_SIZE-1))==0) &&
++ (je32_to_cpu(node.i.dsize)+je32_to_cpu(node.i.offset) == je32_to_cpu(node.i.isize)))) {
++ D1(printk(KERN_DEBUG "Marking node at 0x%08x REF_PRISTINE\n", ref_offset(ref)));
++ ref->flash_offset = ref_offset(ref) | REF_PRISTINE;
++ } else {
++ D1(printk(KERN_DEBUG "Marking node at 0x%08x REF_NORMAL\n", ref_offset(ref)));
++ ref->flash_offset = ref_offset(ref) | REF_NORMAL;
++ }
++ spin_unlock(&c->erase_completion_lock);
++ }
++
+ tn = jffs2_alloc_tmp_dnode_info();
+ if (!tn) {
+ D1(printk(KERN_DEBUG "alloc tn failed\n"));
+@@ -225,36 +363,76 @@
+ jffs2_free_tmp_dnode_info(tn);
+ goto free_out;
+ }
+- tn->version = node.i.version;
+- tn->fn->ofs = node.i.offset;
++ tn->version = je32_to_cpu(node.i.version);
++ tn->fn->ofs = je32_to_cpu(node.i.offset);
+ /* There was a bug where we wrote hole nodes out with
+ csize/dsize swapped. Deal with it */
+- if (node.i.compr == JFFS2_COMPR_ZERO && !node.i.dsize && node.i.csize)
+- tn->fn->size = node.i.csize;
++ if (node.i.compr == JFFS2_COMPR_ZERO && !je32_to_cpu(node.i.dsize) && je32_to_cpu(node.i.csize))
++ tn->fn->size = je32_to_cpu(node.i.csize);
+ else // normal case...
+- tn->fn->size = node.i.dsize;
++ tn->fn->size = je32_to_cpu(node.i.dsize);
+ tn->fn->raw = ref;
+- D1(printk(KERN_DEBUG "dnode @%08x: ver %u, offset %04x, dsize %04x\n", ref->flash_offset &~3, node.i.version, node.i.offset, node.i.dsize));
++ D1(printk(KERN_DEBUG "dnode @%08x: ver %u, offset %04x, dsize %04x\n",
++ ref_offset(ref), je32_to_cpu(node.i.version),
++ je32_to_cpu(node.i.offset), je32_to_cpu(node.i.dsize)));
+ jffs2_add_tn_to_list(tn, &ret_tn);
+ break;
+
+ default:
+- switch(node.u.nodetype & JFFS2_COMPAT_MASK) {
++ if (ref_flags(ref) == REF_UNCHECKED) {
++ struct jffs2_eraseblock *jeb;
++ uint32_t len;
++
++ printk(KERN_ERR "Eep. Unknown node type %04x at %08x was marked REF_UNCHECKED\n",
++ je16_to_cpu(node.u.nodetype), ref_offset(ref));
++
++ /* Mark the node as having been checked and fix the accounting accordingly */
++ spin_lock(&c->erase_completion_lock);
++ jeb = &c->blocks[ref->flash_offset / c->sector_size];
++ len = ref_totlen(c, jeb, ref);
++
++ jeb->used_size += len;
++ jeb->unchecked_size -= len;
++ c->used_size += len;
++ c->unchecked_size -= len;
++
++ mark_ref_normal(ref);
++ spin_unlock(&c->erase_completion_lock);
++ }
++ node.u.nodetype = cpu_to_je16(JFFS2_NODE_ACCURATE | je16_to_cpu(node.u.nodetype));
++ if (crc32(0, &node, sizeof(struct jffs2_unknown_node)-4) != je32_to_cpu(node.u.hdr_crc)) {
++ /* Hmmm. This should have been caught at scan time. */
++ printk(KERN_ERR "Node header CRC failed at %08x. But it must have been OK earlier.\n",
++ ref_offset(ref));
++ printk(KERN_ERR "Node was: { %04x, %04x, %08x, %08x }\n",
++ je16_to_cpu(node.u.magic), je16_to_cpu(node.u.nodetype), je32_to_cpu(node.u.totlen),
++ je32_to_cpu(node.u.hdr_crc));
++ jffs2_mark_node_obsolete(c, ref);
++ } else switch(je16_to_cpu(node.u.nodetype) & JFFS2_COMPAT_MASK) {
+ case JFFS2_FEATURE_INCOMPAT:
+- printk(KERN_NOTICE "Unknown INCOMPAT nodetype %04X at %08X\n", node.u.nodetype, ref->flash_offset & ~3);
++ printk(KERN_NOTICE "Unknown INCOMPAT nodetype %04X at %08x\n", je16_to_cpu(node.u.nodetype), ref_offset(ref));
++ /* EEP */
++ BUG();
+ break;
+ case JFFS2_FEATURE_ROCOMPAT:
+- printk(KERN_NOTICE "Unknown ROCOMPAT nodetype %04X at %08X\n", node.u.nodetype, ref->flash_offset & ~3);
++ printk(KERN_NOTICE "Unknown ROCOMPAT nodetype %04X at %08x\n", je16_to_cpu(node.u.nodetype), ref_offset(ref));
++ if (!(c->flags & JFFS2_SB_FLAG_RO))
++ BUG();
+ break;
+ case JFFS2_FEATURE_RWCOMPAT_COPY:
+- printk(KERN_NOTICE "Unknown RWCOMPAT_COPY nodetype %04X at %08X\n", node.u.nodetype, ref->flash_offset & ~3);
++ printk(KERN_NOTICE "Unknown RWCOMPAT_COPY nodetype %04X at %08x\n", je16_to_cpu(node.u.nodetype), ref_offset(ref));
+ break;
+ case JFFS2_FEATURE_RWCOMPAT_DELETE:
+- printk(KERN_NOTICE "Unknown RWCOMPAT_DELETE nodetype %04X at %08X\n", node.u.nodetype, ref->flash_offset & ~3);
++ printk(KERN_NOTICE "Unknown RWCOMPAT_DELETE nodetype %04X at %08x\n", je16_to_cpu(node.u.nodetype), ref_offset(ref));
++ jffs2_mark_node_obsolete(c, ref);
+ break;
+ }
++
+ }
++ spin_lock(&c->erase_completion_lock);
++
+ }
++ spin_unlock(&c->erase_completion_lock);
+ *tnp = ret_tn;
+ *fdp = ret_fd;
+
+@@ -266,19 +444,30 @@
+ return err;
+ }
+
++void jffs2_set_inocache_state(struct jffs2_sb_info *c, struct jffs2_inode_cache *ic, int state)
++{
++ spin_lock(&c->inocache_lock);
++ ic->state = state;
++ wake_up(&c->inocache_wq);
++ spin_unlock(&c->inocache_lock);
++}
++
++/* During mount, this needs no locking. During normal operation, its
++ callers want to do other stuff while still holding the inocache_lock.
++ Rather than introducing special case get_ino_cache functions or
++ callbacks, we just let the caller do the locking itself. */
++
+ struct jffs2_inode_cache *jffs2_get_ino_cache(struct jffs2_sb_info *c, uint32_t ino)
+ {
+ struct jffs2_inode_cache *ret;
+
+ D2(printk(KERN_DEBUG "jffs2_get_ino_cache(): ino %u\n", ino));
+- spin_lock (&c->inocache_lock);
++
+ ret = c->inocache_list[ino % INOCACHE_HASHSIZE];
+ while (ret && ret->ino < ino) {
+ ret = ret->next;
+ }
+
+- spin_unlock(&c->inocache_lock);
+-
+ if (ret && ret->ino != ino)
+ ret = NULL;
+
+@@ -299,6 +488,7 @@
+ }
+ new->next = *prev;
+ *prev = new;
++
+ spin_unlock(&c->inocache_lock);
+ }
+
+@@ -316,6 +506,7 @@
+ if ((*prev) == old) {
+ *prev = old->next;
+ }
++
+ spin_unlock(&c->inocache_lock);
+ }
+
+@@ -352,3 +543,128 @@
+ }
+ }
+
++struct jffs2_node_frag *jffs2_lookup_node_frag(struct rb_root *fragtree, uint32_t offset)
++{
++ /* The common case in lookup is that there will be a node
++ which precisely matches. So we go looking for that first */
++ struct rb_node *next;
++ struct jffs2_node_frag *prev = NULL;
++ struct jffs2_node_frag *frag = NULL;
++
++ D2(printk(KERN_DEBUG "jffs2_lookup_node_frag(%p, %d)\n", fragtree, offset));
++
++ next = fragtree->rb_node;
++
++ while(next) {
++ frag = rb_entry(next, struct jffs2_node_frag, rb);
++
++ D2(printk(KERN_DEBUG "Considering frag %d-%d (%p). left %p, right %p\n",
++ frag->ofs, frag->ofs+frag->size, frag, frag->rb.rb_left, frag->rb.rb_right));
++ if (frag->ofs + frag->size <= offset) {
++ D2(printk(KERN_DEBUG "Going right from frag %d-%d, before the region we care about\n",
++ frag->ofs, frag->ofs+frag->size));
++ /* Remember the closest smaller match on the way down */
++ if (!prev || frag->ofs > prev->ofs)
++ prev = frag;
++ next = frag->rb.rb_right;
++ } else if (frag->ofs > offset) {
++ D2(printk(KERN_DEBUG "Going left from frag %d-%d, after the region we care about\n",
++ frag->ofs, frag->ofs+frag->size));
++ next = frag->rb.rb_left;
++ } else {
++ D2(printk(KERN_DEBUG "Returning frag %d,%d, matched\n",
++ frag->ofs, frag->ofs+frag->size));
++ return frag;
++ }
++ }
++
++ /* Exact match not found. Go back up looking at each parent,
++ and return the closest smaller one */
++
++ if (prev)
++ D2(printk(KERN_DEBUG "No match. Returning frag %d,%d, closest previous\n",
++ prev->ofs, prev->ofs+prev->size));
++ else
++ D2(printk(KERN_DEBUG "Returning NULL, empty fragtree\n"));
++
++ return prev;
++}
++
++/* Pass 'c' argument to indicate that nodes should be marked obsolete as
++ they're killed. */
++void jffs2_kill_fragtree(struct rb_root *root, struct jffs2_sb_info *c)
++{
++ struct jffs2_node_frag *frag;
++ struct jffs2_node_frag *parent;
++
++ if (!root->rb_node)
++ return;
++
++ frag = (rb_entry(root->rb_node, struct jffs2_node_frag, rb));
++
++ while(frag) {
++ if (frag->rb.rb_left) {
++ D2(printk(KERN_DEBUG "Going left from frag (%p) %d-%d\n",
++ frag, frag->ofs, frag->ofs+frag->size));
++ frag = frag_left(frag);
++ continue;
++ }
++ if (frag->rb.rb_right) {
++ D2(printk(KERN_DEBUG "Going right from frag (%p) %d-%d\n",
++ frag, frag->ofs, frag->ofs+frag->size));
++ frag = frag_right(frag);
++ continue;
++ }
++
++ D2(printk(KERN_DEBUG "jffs2_kill_fragtree: frag at 0x%x-0x%x: node %p, frags %d--\n",
++ frag->ofs, frag->ofs+frag->size, frag->node,
++ frag->node?frag->node->frags:0));
++
++ if (frag->node && !(--frag->node->frags)) {
++ /* Not a hole, and it's the final remaining frag
++ of this node. Free the node */
++ if (c)
++ jffs2_mark_node_obsolete(c, frag->node->raw);
++
++ jffs2_free_full_dnode(frag->node);
++ }
++ parent = frag_parent(frag);
++ if (parent) {
++ if (frag_left(parent) == frag)
++ parent->rb.rb_left = NULL;
++ else
++ parent->rb.rb_right = NULL;
++ }
++
++ jffs2_free_node_frag(frag);
++ frag = parent;
++
++ cond_resched();
++ }
++}
++
++void jffs2_fragtree_insert(struct jffs2_node_frag *newfrag, struct jffs2_node_frag *base)
++{
++ struct rb_node *parent = &base->rb;
++ struct rb_node **link = &parent;
++
++ D2(printk(KERN_DEBUG "jffs2_fragtree_insert(%p; %d-%d, %p)\n", newfrag,
++ newfrag->ofs, newfrag->ofs+newfrag->size, base));
++
++ while (*link) {
++ parent = *link;
++ base = rb_entry(parent, struct jffs2_node_frag, rb);
++
++ D2(printk(KERN_DEBUG "fragtree_insert considering frag at 0x%x\n", base->ofs));
++ if (newfrag->ofs > base->ofs)
++ link = &base->rb.rb_right;
++ else if (newfrag->ofs < base->ofs)
++ link = &base->rb.rb_left;
++ else {
++ printk(KERN_CRIT "Duplicate frag at %08x (%p,%p)\n", newfrag->ofs, newfrag, base);
++ BUG();
++ }
++ }
++
++ rb_link_node(&newfrag->rb, &base->rb, link);
++}
+diff -Nurb linux-mips-2.4.27/fs/jffs2/nodelist.h linux/fs/jffs2/nodelist.h
+--- linux-mips-2.4.27/fs/jffs2/nodelist.h 2003-11-17 02:07:44.000000000 +0100
++++ linux/fs/jffs2/nodelist.h 2004-11-19 10:25:12.113167264 +0100
+@@ -1,48 +1,35 @@
+ /*
+ * JFFS2 -- Journalling Flash File System, Version 2.
+ *
+- * Copyright (C) 2001 Red Hat, Inc.
++ * Copyright (C) 2001-2003 Red Hat, Inc.
+ *
+- * Created by David Woodhouse <dwmw2@cambridge.redhat.com>
++ * Created by David Woodhouse <dwmw2@redhat.com>
+ *
+- * The original JFFS, from which the design for JFFS2 was derived,
+- * was designed and implemented by Axis Communications AB.
++ * For licensing information, see the file 'LICENCE' in this directory.
+ *
+- * The contents of this file are subject to the Red Hat eCos Public
+- * License Version 1.1 (the "Licence"); you may not use this file
+- * except in compliance with the Licence. You may obtain a copy of
+- * the Licence at http://www.redhat.com/
+- *
+- * Software distributed under the Licence is distributed on an "AS IS"
+- * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
+- * See the Licence for the specific language governing rights and
+- * limitations under the Licence.
+- *
+- * The Original Code is JFFS2 - Journalling Flash File System, version 2
+- *
+- * Alternatively, the contents of this file may be used under the
+- * terms of the GNU General Public License version 2 (the "GPL"), in
+- * which case the provisions of the GPL are applicable instead of the
+- * above. If you wish to allow the use of your version of this file
+- * only under the terms of the GPL and not to allow others to use your
+- * version of this file under the RHEPL, indicate your decision by
+- * deleting the provisions above and replace them with the notice and
+- * other provisions required by the GPL. If you do not delete the
+- * provisions above, a recipient may use your version of this file
+- * under either the RHEPL or the GPL.
+- *
+- * $Id: nodelist.h,v 1.46.2.5 2003/11/02 13:54:20 dwmw2 Exp $
++ * $Id: nodelist.h,v 1.115 2003/11/26 15:30:58 dwmw2 Exp $
+ *
+ */
+
++#ifndef __JFFS2_NODELIST_H__
++#define __JFFS2_NODELIST_H__
++
+ #include <linux/config.h>
+ #include <linux/fs.h>
+-
++#include <linux/types.h>
++#include <linux/jffs2.h>
+ #include <linux/jffs2_fs_sb.h>
+ #include <linux/jffs2_fs_i.h>
+
++#ifdef __ECOS
++#include "os-ecos.h"
++#else
++#include <linux/mtd/compatmac.h> /* For min/max in older kernels */
++#include "os-linux.h"
++#endif
++
+ #ifndef CONFIG_JFFS2_FS_DEBUG
+-#define CONFIG_JFFS2_FS_DEBUG 2
++#define CONFIG_JFFS2_FS_DEBUG 1
+ #endif
+
+ #if CONFIG_JFFS2_FS_DEBUG > 0
+@@ -71,17 +58,21 @@
+ for this inode instead. The inode_cache will have NULL in the first
+ word so you know when you've got there :) */
+ struct jffs2_raw_node_ref *next_phys;
+- // __u32 ino;
+- __u32 flash_offset;
+- __u32 totlen;
+-// __u16 nodetype;
++ uint32_t flash_offset;
++ uint32_t __totlen; /* This may die; use ref_totlen(c, jeb, ) below */
++};
+
+ /* flash_offset & 3 always has to be zero, because nodes are
+ always aligned at 4 bytes. So we have a couple of extra bits
+- to play with. So we set the least significant bit to 1 to
+- signify that the node is obsoleted by later nodes.
+- */
+-};
++ to play with, which indicate the node's status; see below: */
++#define REF_UNCHECKED 0 /* We haven't yet checked the CRC or built its inode */
++#define REF_OBSOLETE 1 /* Obsolete, can be completely ignored */
++#define REF_PRISTINE 2 /* Completely clean. GC without looking */
++#define REF_NORMAL 3 /* Possibly overlapped. Read the page and write again on GC */
++#define ref_flags(ref) ((ref)->flash_offset & 3)
++#define ref_offset(ref) ((ref)->flash_offset & ~3)
++#define ref_obsolete(ref) (((ref)->flash_offset & 3) == REF_OBSOLETE)
++#define mark_ref_normal(ref) do { (ref)->flash_offset = ref_offset(ref) | REF_NORMAL; } while(0)
+
+ /*
+ Used for keeping track of deletion nodes &c, which can only be marked
+@@ -101,19 +92,35 @@
+ a pointer to the first physical node which is part of this inode, too.
+ */
+ struct jffs2_inode_cache {
+- struct jffs2_scan_info *scan; /* Used during scan to hold
+- temporary lists of nodes, and later must be set to
++ struct jffs2_full_dirent *scan_dents; /* Used during scan to hold
++ temporary lists of dirents, and later must be set to
+ NULL to mark the end of the raw_node_ref->next_in_ino
+ chain. */
+ struct jffs2_inode_cache *next;
+ struct jffs2_raw_node_ref *nodes;
+- __u32 ino;
++ uint32_t ino;
+ int nlink;
++ int state;
+ };
+
++/* Inode states for 'state' above. We need the 'GC' state to prevent
++ someone from doing a read_inode() while we're moving a 'REF_PRISTINE'
++ node without going through all the iget() nonsense */
++#define INO_STATE_UNCHECKED 0 /* CRC checks not yet done */
++#define INO_STATE_CHECKING 1 /* CRC checks in progress */
++#define INO_STATE_PRESENT 2 /* In core */
++#define INO_STATE_CHECKEDABSENT 3 /* Checked, cleared again */
++#define INO_STATE_GC 4 /* GCing a 'pristine' node */
++#define INO_STATE_READING 5 /* In read_inode() */
++
++#define INOCACHE_HASHSIZE 128
++
+ struct jffs2_scan_info {
+ struct jffs2_full_dirent *dents;
+ struct jffs2_tmp_dnode_info *tmpnodes;
++ /* Latest i_size info */
++ uint32_t version;
++ uint32_t isize;
+ };
+ /*
+ Larger representation of a raw node, kept in-core only when the
+@@ -123,9 +130,9 @@
+ struct jffs2_full_dnode
+ {
+ struct jffs2_raw_node_ref *raw;
+- __u32 ofs; /* Don't really need this, but optimisation */
+- __u32 size;
+- __u32 frags; /* Number of fragments which currently refer
++ uint32_t ofs; /* Don't really need this, but optimisation */
++ uint32_t size;
++ uint32_t frags; /* Number of fragments which currently refer
+ to this node. When this reaches zero,
+ the node is obsolete.
+ */
+@@ -140,15 +147,15 @@
+ {
+ struct jffs2_tmp_dnode_info *next;
+ struct jffs2_full_dnode *fn;
+- __u32 version;
++ uint32_t version;
+ };
+
+ struct jffs2_full_dirent
+ {
+ struct jffs2_raw_node_ref *raw;
+ struct jffs2_full_dirent *next;
+- __u32 version;
+- __u32 ino; /* == zero for unlink */
++ uint32_t version;
++ uint32_t ino; /* == zero for unlink */
+ unsigned int nhash;
+ unsigned char type;
+ unsigned char name[0];
+@@ -159,21 +166,23 @@
+ */
+ struct jffs2_node_frag
+ {
+- struct jffs2_node_frag *next;
++ struct rb_node rb;
+ struct jffs2_full_dnode *node; /* NULL for holes */
+- __u32 size;
+- __u32 ofs; /* Don't really need this, but optimisation */
++ uint32_t size;
++ uint32_t ofs; /* Don't really need this, but optimisation */
+ };
+
+ struct jffs2_eraseblock
+ {
+ struct list_head list;
+ int bad_count;
+- __u32 offset; /* of this block in the MTD */
++ uint32_t offset; /* of this block in the MTD */
+
+- __u32 used_size;
+- __u32 dirty_size;
+- __u32 free_size; /* Note that sector_size - free_size
++ uint32_t unchecked_size;
++ uint32_t used_size;
++ uint32_t dirty_size;
++ uint32_t wasted_size;
++ uint32_t free_size; /* Note that sector_size - free_size
+ is the address of the first free space */
+ struct jffs2_raw_node_ref *first_node;
+ struct jffs2_raw_node_ref *last_node;
+@@ -190,45 +199,134 @@
+ };
+
+ #define ACCT_SANITY_CHECK(c, jeb) do { \
+- if (jeb->used_size + jeb->dirty_size + jeb->free_size != c->sector_size) { \
+- printk(KERN_NOTICE "Eeep. Space accounting for block at 0x%08x is screwed\n", jeb->offset); \
+- printk(KERN_NOTICE "free 0x%08x + dirty 0x%08x + used %08x != total %08x\n", \
+- jeb->free_size, jeb->dirty_size, jeb->used_size, c->sector_size); \
++ struct jffs2_eraseblock *___j = jeb; \
++ if ((___j) && ___j->used_size + ___j->dirty_size + ___j->free_size + ___j->wasted_size + ___j->unchecked_size != c->sector_size) { \
++ printk(KERN_NOTICE "Eeep. Space accounting for block at 0x%08x is screwed\n", ___j->offset); \
++ printk(KERN_NOTICE "free 0x%08x + dirty 0x%08x + used %08x + wasted %08x + unchecked %08x != total %08x\n", \
++ ___j->free_size, ___j->dirty_size, ___j->used_size, ___j->wasted_size, ___j->unchecked_size, c->sector_size); \
+ BUG(); \
+ } \
+- if (c->used_size + c->dirty_size + c->free_size + c->erasing_size + c->bad_size != c->flash_size) { \
++ if (c->used_size + c->dirty_size + c->free_size + c->erasing_size + c->bad_size + c->wasted_size + c->unchecked_size != c->flash_size) { \
+ printk(KERN_NOTICE "Eeep. Space accounting superblock info is screwed\n"); \
+- printk(KERN_NOTICE "free 0x%08x + dirty 0x%08x + used %08x + erasing %08x + bad %08x != total %08x\n", \
+- c->free_size, c->dirty_size, c->used_size, c->erasing_size, c->bad_size, c->flash_size); \
++ printk(KERN_NOTICE "free 0x%08x + dirty 0x%08x + used %08x + erasing %08x + bad %08x + wasted %08x + unchecked %08x != total %08x\n", \
++ c->free_size, c->dirty_size, c->used_size, c->erasing_size, c->bad_size, c->wasted_size, c->unchecked_size, c->flash_size); \
+ BUG(); \
+ } \
+ } while(0)
+
++static inline void paranoia_failed_dump(struct jffs2_eraseblock *jeb)
++{
++ struct jffs2_raw_node_ref *ref;
++ int i=0;
++
++ printk(KERN_NOTICE);
++ for (ref = jeb->first_node; ref; ref = ref->next_phys) {
++ printk("%08x->", ref_offset(ref));
++ if (++i == 8) {
++ i = 0;
++ printk("\n" KERN_NOTICE);
++ }
++ }
++ printk("\n");
++}
++
++
+ #define ACCT_PARANOIA_CHECK(jeb) do { \
+- __u32 my_used_size = 0; \
++ uint32_t my_used_size = 0; \
++ uint32_t my_unchecked_size = 0; \
+ struct jffs2_raw_node_ref *ref2 = jeb->first_node; \
+ while (ref2) { \
+- if (!(ref2->flash_offset & 1)) \
+- my_used_size += ref2->totlen; \
++ if (unlikely(ref2->flash_offset < jeb->offset || \
++ ref2->flash_offset > jeb->offset + c->sector_size)) { \
++ printk(KERN_NOTICE "Node %08x shouldn't be in block at %08x!\n", \
++ ref_offset(ref2), jeb->offset); \
++ paranoia_failed_dump(jeb); \
++ BUG(); \
++ } \
++ if (ref_flags(ref2) == REF_UNCHECKED) \
++ my_unchecked_size += ref_totlen(c, jeb, ref2); \
++ else if (!ref_obsolete(ref2)) \
++ my_used_size += ref_totlen(c, jeb, ref2); \
++ if (unlikely((!ref2->next_phys) != (ref2 == jeb->last_node))) { \
++ printk("ref for node at %p (phys %08x) has next_phys->%p (%08x), last_node->%p (phys %08x)\n", \
++ ref2, ref_offset(ref2), ref2->next_phys, ref_offset(ref2->next_phys), \
++ jeb->last_node, ref_offset(jeb->last_node)); \
++ paranoia_failed_dump(jeb); \
++ BUG(); \
++ } \
+ ref2 = ref2->next_phys; \
+ } \
+ if (my_used_size != jeb->used_size) { \
+ printk(KERN_NOTICE "Calculated used size %08x != stored used size %08x\n", my_used_size, jeb->used_size); \
+ BUG(); \
+ } \
++ if (my_unchecked_size != jeb->unchecked_size) { \
++ printk(KERN_NOTICE "Calculated unchecked size %08x != stored unchecked size %08x\n", my_unchecked_size, jeb->unchecked_size); \
++ BUG(); \
++ } \
+ } while(0)
+
++/* Calculate totlen from surrounding nodes or eraseblock */
++static inline uint32_t __ref_totlen(struct jffs2_sb_info *c,
++ struct jffs2_eraseblock *jeb,
++ struct jffs2_raw_node_ref *ref)
++{
++ uint32_t ref_end;
++
++ if (ref->next_phys)
++ ref_end = ref_offset(ref->next_phys);
++ else {
++ if (!jeb)
++ jeb = &c->blocks[ref->flash_offset / c->sector_size];
++
++ /* Last node in block. Use free_space */
++ BUG_ON(ref != jeb->last_node);
++ ref_end = jeb->offset + c->sector_size - jeb->free_size;
++ }
++ return ref_end - ref_offset(ref);
++}
++
++static inline uint32_t ref_totlen(struct jffs2_sb_info *c,
++ struct jffs2_eraseblock *jeb,
++ struct jffs2_raw_node_ref *ref)
++{
++ uint32_t ret;
++
++ D1(if (jeb && jeb != &c->blocks[ref->flash_offset / c->sector_size]) {
++ printk(KERN_CRIT "ref_totlen called with wrong block -- at 0x%08x instead of 0x%08x; ref 0x%08x\n",
++ jeb->offset, c->blocks[ref->flash_offset / c->sector_size].offset, ref_offset(ref));
++ BUG();
++ })
++
++#if 1
++ ret = ref->__totlen;
++#else
++ /* This doesn't actually work yet */
++ ret = __ref_totlen(c, jeb, ref);
++ if (ret != ref->__totlen) {
++ printk(KERN_CRIT "Totlen for ref at %p (0x%08x-0x%08x) miscalculated as 0x%x instead of %x\n",
++ ref, ref_offset(ref), ref_offset(ref)+ref->__totlen,
++ ret, ref->__totlen);
++ if (!jeb)
++ jeb = &c->blocks[ref->flash_offset / c->sector_size];
++ paranoia_failed_dump(jeb);
++ BUG();
++ }
++#endif
++ return ret;
++}
++
++
+ #define ALLOC_NORMAL 0 /* Normal allocation */
+ #define ALLOC_DELETION 1 /* Deletion node. Best to allow it */
+ #define ALLOC_GC 2 /* Space requested for GC. Give it or die */
++#define ALLOC_NORETRY 3 /* For jffs2_write_dnode: On failure, return -EAGAIN instead of retrying */
+
+-#define JFFS2_RESERVED_BLOCKS_BASE 3 /* Number of free blocks there must be before we... */
+-#define JFFS2_RESERVED_BLOCKS_WRITE (JFFS2_RESERVED_BLOCKS_BASE + 2) /* ... allow a normal filesystem write */
+-#define JFFS2_RESERVED_BLOCKS_DELETION (JFFS2_RESERVED_BLOCKS_BASE + 1) /* ... allow a normal filesystem deletion */
+-#define JFFS2_RESERVED_BLOCKS_GCTRIGGER (JFFS2_RESERVED_BLOCKS_BASE + 3) /* ... wake up the GC thread */
+-#define JFFS2_RESERVED_BLOCKS_GCBAD (JFFS2_RESERVED_BLOCKS_BASE + 1) /* ... pick a block from the bad_list to GC */
+-#define JFFS2_RESERVED_BLOCKS_GCMERGE (JFFS2_RESERVED_BLOCKS_BASE) /* ... merge pages when garbage collecting */
++/* How much dirty space before it goes on the very_dirty_list */
++#define VERYDIRTY(c, size) ((size) >= ((c)->sector_size / 2))
+
++/* check if dirty space is more than 255 Byte */
++#define ISDIRTY(size) ((size) > sizeof (struct jffs2_raw_inode) + JFFS2_MIN_DATA_LEN)
+
+ #define PAD(x) (((x)+3)&~3)
+
+@@ -241,43 +339,75 @@
+ return ((struct jffs2_inode_cache *)raw);
+ }
+
++static inline struct jffs2_node_frag *frag_first(struct rb_root *root)
++{
++ struct rb_node *node = root->rb_node;
++
++ if (!node)
++ return NULL;
++ while(node->rb_left)
++ node = node->rb_left;
++ return rb_entry(node, struct jffs2_node_frag, rb);
++}
++#define rb_parent(rb) ((rb)->rb_parent)
++#define frag_next(frag) rb_entry(rb_next(&(frag)->rb), struct jffs2_node_frag, rb)
++#define frag_prev(frag) rb_entry(rb_prev(&(frag)->rb), struct jffs2_node_frag, rb)
++#define frag_parent(frag) rb_entry(rb_parent(&(frag)->rb), struct jffs2_node_frag, rb)
++#define frag_left(frag) rb_entry((frag)->rb.rb_left, struct jffs2_node_frag, rb)
++#define frag_right(frag) rb_entry((frag)->rb.rb_right, struct jffs2_node_frag, rb)
++#define frag_erase(frag, list) rb_erase(&frag->rb, list);
++
+ /* nodelist.c */
+ D1(void jffs2_print_frag_list(struct jffs2_inode_info *f));
+ void jffs2_add_fd_to_list(struct jffs2_sb_info *c, struct jffs2_full_dirent *new, struct jffs2_full_dirent **list);
+-void jffs2_add_tn_to_list(struct jffs2_tmp_dnode_info *tn, struct jffs2_tmp_dnode_info **list);
+ int jffs2_get_inode_nodes(struct jffs2_sb_info *c, ino_t ino, struct jffs2_inode_info *f,
+ struct jffs2_tmp_dnode_info **tnp, struct jffs2_full_dirent **fdp,
+- __u32 *highest_version, __u32 *latest_mctime,
+- __u32 *mctime_ver);
++ uint32_t *highest_version, uint32_t *latest_mctime,
++ uint32_t *mctime_ver);
++void jffs2_set_inocache_state(struct jffs2_sb_info *c, struct jffs2_inode_cache *ic, int state);
+ struct jffs2_inode_cache *jffs2_get_ino_cache(struct jffs2_sb_info *c, uint32_t ino);
+ void jffs2_add_ino_cache (struct jffs2_sb_info *c, struct jffs2_inode_cache *new);
+ void jffs2_del_ino_cache(struct jffs2_sb_info *c, struct jffs2_inode_cache *old);
+ void jffs2_free_ino_caches(struct jffs2_sb_info *c);
+ void jffs2_free_raw_node_refs(struct jffs2_sb_info *c);
++struct jffs2_node_frag *jffs2_lookup_node_frag(struct rb_root *fragtree, uint32_t offset);
++void jffs2_kill_fragtree(struct rb_root *root, struct jffs2_sb_info *c_delete);
++void jffs2_fragtree_insert(struct jffs2_node_frag *newfrag, struct jffs2_node_frag *base);
++struct rb_node *rb_next(struct rb_node *);
++struct rb_node *rb_prev(struct rb_node *);
++void rb_replace_node(struct rb_node *victim, struct rb_node *new, struct rb_root *root);
+
+ /* nodemgmt.c */
+-int jffs2_reserve_space(struct jffs2_sb_info *c, __u32 minsize, __u32 *ofs, __u32 *len, int prio);
+-int jffs2_reserve_space_gc(struct jffs2_sb_info *c, __u32 minsize, __u32 *ofs, __u32 *len);
+-int jffs2_add_physical_node_ref(struct jffs2_sb_info *c, struct jffs2_raw_node_ref *new, __u32 len, int dirty);
++int jffs2_thread_should_wake(struct jffs2_sb_info *c);
++int jffs2_reserve_space(struct jffs2_sb_info *c, uint32_t minsize, uint32_t *ofs, uint32_t *len, int prio);
++int jffs2_reserve_space_gc(struct jffs2_sb_info *c, uint32_t minsize, uint32_t *ofs, uint32_t *len);
++int jffs2_add_physical_node_ref(struct jffs2_sb_info *c, struct jffs2_raw_node_ref *new);
+ void jffs2_complete_reservation(struct jffs2_sb_info *c);
+ void jffs2_mark_node_obsolete(struct jffs2_sb_info *c, struct jffs2_raw_node_ref *raw);
++void jffs2_dump_block_lists(struct jffs2_sb_info *c);
+
+ /* write.c */
+-struct inode *jffs2_new_inode (struct inode *dir_i, int mode, struct jffs2_raw_inode *ri);
+-struct jffs2_full_dnode *jffs2_write_dnode(struct inode *inode, struct jffs2_raw_inode *ri, const unsigned char *data, __u32 datalen, __u32 flash_ofs, __u32 *writelen);
+-struct jffs2_full_dirent *jffs2_write_dirent(struct inode *inode, struct jffs2_raw_dirent *rd, const unsigned char *name, __u32 namelen, __u32 flash_ofs, __u32 *writelen);
++int jffs2_do_new_inode(struct jffs2_sb_info *c, struct jffs2_inode_info *f, uint32_t mode, struct jffs2_raw_inode *ri);
++
++struct jffs2_full_dnode *jffs2_write_dnode(struct jffs2_sb_info *c, struct jffs2_inode_info *f, struct jffs2_raw_inode *ri, const unsigned char *data, uint32_t datalen, uint32_t flash_ofs, int alloc_mode);
++struct jffs2_full_dirent *jffs2_write_dirent(struct jffs2_sb_info *c, struct jffs2_inode_info *f, struct jffs2_raw_dirent *rd, const unsigned char *name, uint32_t namelen, uint32_t flash_ofs, int alloc_mode);
++int jffs2_write_inode_range(struct jffs2_sb_info *c, struct jffs2_inode_info *f,
++ struct jffs2_raw_inode *ri, unsigned char *buf,
++ uint32_t offset, uint32_t writelen, uint32_t *retlen);
++int jffs2_do_create(struct jffs2_sb_info *c, struct jffs2_inode_info *dir_f, struct jffs2_inode_info *f, struct jffs2_raw_inode *ri, const char *name, int namelen);
++int jffs2_do_unlink(struct jffs2_sb_info *c, struct jffs2_inode_info *dir_f, const char *name, int namelen, struct jffs2_inode_info *dead_f);
++int jffs2_do_link (struct jffs2_sb_info *c, struct jffs2_inode_info *dir_f, uint32_t ino, uint8_t type, const char *name, int namelen);
++
+
+ /* readinode.c */
+-void jffs2_truncate_fraglist (struct jffs2_sb_info *c, struct jffs2_node_frag **list, __u32 size);
+-int jffs2_add_full_dnode_to_fraglist(struct jffs2_sb_info *c, struct jffs2_node_frag **list, struct jffs2_full_dnode *fn);
++void jffs2_truncate_fraglist (struct jffs2_sb_info *c, struct rb_root *list, uint32_t size);
+ int jffs2_add_full_dnode_to_inode(struct jffs2_sb_info *c, struct jffs2_inode_info *f, struct jffs2_full_dnode *fn);
+-void jffs2_read_inode (struct inode *);
+-void jffs2_clear_inode (struct inode *);
++int jffs2_do_read_inode(struct jffs2_sb_info *c, struct jffs2_inode_info *f,
++ uint32_t ino, struct jffs2_raw_inode *latest_node);
++int jffs2_do_crccheck_inode(struct jffs2_sb_info *c, struct jffs2_inode_cache *ic);
++void jffs2_do_clear_inode(struct jffs2_sb_info *c, struct jffs2_inode_info *f);
+
+ /* malloc.c */
+-void jffs2_free_tmp_dnode_info_list(struct jffs2_tmp_dnode_info *tn);
+-void jffs2_free_full_dirent_list(struct jffs2_full_dirent *fd);
+-
+ int jffs2_create_slab_caches(void);
+ void jffs2_destroy_slab_caches(void);
+
+@@ -301,54 +431,41 @@
+ /* gc.c */
+ int jffs2_garbage_collect_pass(struct jffs2_sb_info *c);
+
+-/* background.c */
+-int jffs2_start_garbage_collect_thread(struct jffs2_sb_info *c);
+-void jffs2_stop_garbage_collect_thread(struct jffs2_sb_info *c);
+-void jffs2_garbage_collect_trigger(struct jffs2_sb_info *c);
+-
+-/* dir.c */
+-extern struct file_operations jffs2_dir_operations;
+-extern struct inode_operations jffs2_dir_inode_operations;
+-
+-/* file.c */
+-extern struct file_operations jffs2_file_operations;
+-extern struct inode_operations jffs2_file_inode_operations;
+-extern struct address_space_operations jffs2_file_address_operations;
+-int jffs2_null_fsync(struct file *, struct dentry *, int);
+-int jffs2_setattr (struct dentry *dentry, struct iattr *iattr);
+-int jffs2_do_readpage_nolock (struct inode *inode, struct page *pg);
+-int jffs2_do_readpage_unlock (struct inode *inode, struct page *pg);
+-int jffs2_readpage (struct file *, struct page *);
+-int jffs2_prepare_write (struct file *, struct page *, unsigned, unsigned);
+-int jffs2_commit_write (struct file *, struct page *, unsigned, unsigned);
+-
+-/* ioctl.c */
+-int jffs2_ioctl(struct inode *, struct file *, unsigned int, unsigned long);
+-
+ /* read.c */
+ int jffs2_read_dnode(struct jffs2_sb_info *c, struct jffs2_full_dnode *fd, unsigned char *buf, int ofs, int len);
++int jffs2_read_inode_range(struct jffs2_sb_info *c, struct jffs2_inode_info *f,
++ unsigned char *buf, uint32_t offset, uint32_t len);
++char *jffs2_getlink(struct jffs2_sb_info *c, struct jffs2_inode_info *f);
+
+ /* compr.c */
+-unsigned char jffs2_compress(unsigned char *data_in, unsigned char *cpage_out,
+- __u32 *datalen, __u32 *cdatalen);
++unsigned char jffs2_compress(unsigned char *data_in, unsigned char **cpage_out,
++ uint32_t *datalen, uint32_t *cdatalen);
++void jffs2_free_comprbuf(unsigned char *comprbuf, unsigned char *orig);
+ int jffs2_decompress(unsigned char comprtype, unsigned char *cdata_in,
+- unsigned char *data_out, __u32 cdatalen, __u32 datalen);
++ unsigned char *data_out, uint32_t cdatalen, uint32_t datalen);
+
+ /* scan.c */
+ int jffs2_scan_medium(struct jffs2_sb_info *c);
++void jffs2_rotate_lists(struct jffs2_sb_info *c);
+
+ /* build.c */
+-int jffs2_build_filesystem(struct jffs2_sb_info *c);
+-
+-/* symlink.c */
+-extern struct inode_operations jffs2_symlink_inode_operations;
++int jffs2_do_mount_fs(struct jffs2_sb_info *c);
+
+ /* erase.c */
+ void jffs2_erase_block(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb);
+-void jffs2_erase_pending_blocks(struct jffs2_sb_info *c);
+-void jffs2_mark_erased_blocks(struct jffs2_sb_info *c);
+-void jffs2_erase_pending_trigger(struct jffs2_sb_info *c);
++void jffs2_erase_pending_blocks(struct jffs2_sb_info *c, int count);
++
++#ifdef CONFIG_JFFS2_FS_NAND
++/* wbuf.c */
++int jffs2_flush_wbuf_gc(struct jffs2_sb_info *c, uint32_t ino);
++int jffs2_flush_wbuf_pad(struct jffs2_sb_info *c);
++int jffs2_check_nand_cleanmarker(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb);
++int jffs2_write_nand_cleanmarker(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb);
++int jffs2_nand_read_failcnt(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb);
++#endif
+
+ /* compr_zlib.c */
+ int jffs2_zlib_init(void);
+ void jffs2_zlib_exit(void);
++
++#endif /* __JFFS2_NODELIST_H__ */
+diff -Nurb linux-mips-2.4.27/fs/jffs2/nodemgmt.c linux/fs/jffs2/nodemgmt.c
+--- linux-mips-2.4.27/fs/jffs2/nodemgmt.c 2002-06-27 00:36:20.000000000 +0200
++++ linux/fs/jffs2/nodemgmt.c 2004-11-19 10:25:12.115166960 +0100
+@@ -1,45 +1,21 @@
+ /*
+ * JFFS2 -- Journalling Flash File System, Version 2.
+ *
+- * Copyright (C) 2001 Red Hat, Inc.
++ * Copyright (C) 2001-2003 Red Hat, Inc.
+ *
+- * Created by David Woodhouse <dwmw2@cambridge.redhat.com>
++ * Created by David Woodhouse <dwmw2@redhat.com>
+ *
+- * The original JFFS, from which the design for JFFS2 was derived,
+- * was designed and implemented by Axis Communications AB.
++ * For licensing information, see the file 'LICENCE' in this directory.
+ *
+- * The contents of this file are subject to the Red Hat eCos Public
+- * License Version 1.1 (the "Licence"); you may not use this file
+- * except in compliance with the Licence. You may obtain a copy of
+- * the Licence at http://www.redhat.com/
+- *
+- * Software distributed under the Licence is distributed on an "AS IS"
+- * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
+- * See the Licence for the specific language governing rights and
+- * limitations under the Licence.
+- *
+- * The Original Code is JFFS2 - Journalling Flash File System, version 2
+- *
+- * Alternatively, the contents of this file may be used under the
+- * terms of the GNU General Public License version 2 (the "GPL"), in
+- * which case the provisions of the GPL are applicable instead of the
+- * above. If you wish to allow the use of your version of this file
+- * only under the terms of the GPL and not to allow others to use your
+- * version of this file under the RHEPL, indicate your decision by
+- * deleting the provisions above and replace them with the notice and
+- * other provisions required by the GPL. If you do not delete the
+- * provisions above, a recipient may use your version of this file
+- * under either the RHEPL or the GPL.
+- *
+- * $Id: nodemgmt.c,v 1.45.2.1 2002/02/23 14:13:34 dwmw2 Exp $
++ * $Id: nodemgmt.c,v 1.107 2003/11/26 15:30:58 dwmw2 Exp $
+ *
+ */
+
+ #include <linux/kernel.h>
+ #include <linux/slab.h>
+-#include <linux/jffs2.h>
+ #include <linux/mtd/mtd.h>
+-#include <linux/interrupt.h>
++#include <linux/compiler.h>
++#include <linux/sched.h> /* For cond_resched() */
+ #include "nodelist.h"
+
+ /**
+@@ -62,53 +38,95 @@
+ * for the requested allocation.
+ */
+
+-static int jffs2_do_reserve_space(struct jffs2_sb_info *c, __u32 minsize, __u32 *ofs, __u32 *len);
++static int jffs2_do_reserve_space(struct jffs2_sb_info *c, uint32_t minsize, uint32_t *ofs, uint32_t *len);
+
+-int jffs2_reserve_space(struct jffs2_sb_info *c, __u32 minsize, __u32 *ofs, __u32 *len, int prio)
++int jffs2_reserve_space(struct jffs2_sb_info *c, uint32_t minsize, uint32_t *ofs, uint32_t *len, int prio)
+ {
+ int ret = -EAGAIN;
+- int blocksneeded = JFFS2_RESERVED_BLOCKS_WRITE;
++ int blocksneeded = c->resv_blocks_write;
+ /* align it */
+ minsize = PAD(minsize);
+
+- if (prio == ALLOC_DELETION)
+- blocksneeded = JFFS2_RESERVED_BLOCKS_DELETION;
+-
+ D1(printk(KERN_DEBUG "jffs2_reserve_space(): Requested 0x%x bytes\n", minsize));
+ down(&c->alloc_sem);
+
+ D1(printk(KERN_DEBUG "jffs2_reserve_space(): alloc sem got\n"));
+
+- spin_lock_bh(&c->erase_completion_lock);
++ spin_lock(&c->erase_completion_lock);
+
+- /* this needs a little more thought */
++ /* this needs a little more thought (true <tglx> :)) */
+ while(ret == -EAGAIN) {
+ while(c->nr_free_blocks + c->nr_erasing_blocks < blocksneeded) {
+ int ret;
++ uint32_t dirty, avail;
++
++ /* calculate real dirty size
++ * dirty_size contains blocks on erase_pending_list
++ * those blocks are counted in c->nr_erasing_blocks.
++ * If one block is actually erased, it is not longer counted as dirty_space
++ * but it is counted in c->nr_erasing_blocks, so we add it and subtract it
++ * with c->nr_erasing_blocks * c->sector_size again.
++ * Blocks on erasable_list are counted as dirty_size, but not in c->nr_erasing_blocks
++ * This helps us to force gc and pick eventually a clean block to spread the load.
++ * We add unchecked_size here, as we hopefully will find some space to use.
++ * This will affect the sum only once, as gc first finishes checking
++ * of nodes.
++ */
++ dirty = c->dirty_size + c->erasing_size - c->nr_erasing_blocks * c->sector_size + c->unchecked_size;
++ if (dirty < c->nospc_dirty_size) {
++ if (prio == ALLOC_DELETION && c->nr_free_blocks + c->nr_erasing_blocks >= c->resv_blocks_deletion) {
++ printk(KERN_NOTICE "jffs2_reserve_space(): Low on dirty space to GC, but it's a deletion. Allowing...\n");
++ break;
++ }
++ D1(printk(KERN_DEBUG "dirty size 0x%08x + unchecked_size 0x%08x < nospc_dirty_size 0x%08x, returning -ENOSPC\n",
++ dirty, c->unchecked_size, c->sector_size));
++
++ spin_unlock(&c->erase_completion_lock);
++ up(&c->alloc_sem);
++ return -ENOSPC;
++ }
+
++ /* Calc possibly available space. Possibly available means that we
++ * don't know, if unchecked size contains obsoleted nodes, which could give us some
++ * more usable space. This will affect the sum only once, as gc first finishes checking
++ * of nodes.
++ + Return -ENOSPC, if the maximum possibly available space is less or equal than
++ * blocksneeded * sector_size.
++ * This blocks endless gc looping on a filesystem, which is nearly full, even if
++ * the check above passes.
++ */
++ avail = c->free_size + c->dirty_size + c->erasing_size + c->unchecked_size;
++ if ( (avail / c->sector_size) <= blocksneeded) {
++ if (prio == ALLOC_DELETION && c->nr_free_blocks + c->nr_erasing_blocks >= c->resv_blocks_deletion) {
++ printk(KERN_NOTICE "jffs2_reserve_space(): Low on possibly available space, but it's a deletion. Allowing...\n");
++ break;
++ }
++
++ D1(printk(KERN_DEBUG "max. available size 0x%08x < blocksneeded * sector_size 0x%08x, returning -ENOSPC\n",
++ avail, blocksneeded * c->sector_size));
++ spin_unlock(&c->erase_completion_lock);
+ up(&c->alloc_sem);
+- if (c->dirty_size < c->sector_size) {
+- D1(printk(KERN_DEBUG "Short on space, but total dirty size 0x%08x < sector size 0x%08x, so -ENOSPC\n", c->dirty_size, c->sector_size));
+- spin_unlock_bh(&c->erase_completion_lock);
+ return -ENOSPC;
+ }
+- D1(printk(KERN_DEBUG "Triggering GC pass. nr_free_blocks %d, nr_erasing_blocks %d, free_size 0x%08x, dirty_size 0x%08x, used_size 0x%08x, erasing_size 0x%08x, bad_size 0x%08x (total 0x%08x of 0x%08x)\n",
+- c->nr_free_blocks, c->nr_erasing_blocks, c->free_size, c->dirty_size, c->used_size, c->erasing_size, c->bad_size,
+- c->free_size + c->dirty_size + c->used_size + c->erasing_size + c->bad_size, c->flash_size));
+- spin_unlock_bh(&c->erase_completion_lock);
++
++ up(&c->alloc_sem);
++
++ D1(printk(KERN_DEBUG "Triggering GC pass. nr_free_blocks %d, nr_erasing_blocks %d, free_size 0x%08x, dirty_size 0x%08x, wasted_size 0x%08x, used_size 0x%08x, erasing_size 0x%08x, bad_size 0x%08x (total 0x%08x of 0x%08x)\n",
++ c->nr_free_blocks, c->nr_erasing_blocks, c->free_size, c->dirty_size, c->wasted_size, c->used_size, c->erasing_size, c->bad_size,
++ c->free_size + c->dirty_size + c->wasted_size + c->used_size + c->erasing_size + c->bad_size, c->flash_size));
++ spin_unlock(&c->erase_completion_lock);
+
+ ret = jffs2_garbage_collect_pass(c);
+ if (ret)
+ return ret;
+
+- if (current->need_resched)
+- schedule();
++ cond_resched();
+
+ if (signal_pending(current))
+ return -EINTR;
+
+ down(&c->alloc_sem);
+- spin_lock_bh(&c->erase_completion_lock);
++ spin_lock(&c->erase_completion_lock);
+ }
+
+ ret = jffs2_do_reserve_space(c, minsize, ofs, len);
+@@ -116,45 +134,72 @@
+ D1(printk(KERN_DEBUG "jffs2_reserve_space: ret is %d\n", ret));
+ }
+ }
+- spin_unlock_bh(&c->erase_completion_lock);
++ spin_unlock(&c->erase_completion_lock);
+ if (ret)
+ up(&c->alloc_sem);
+ return ret;
+ }
+
+-int jffs2_reserve_space_gc(struct jffs2_sb_info *c, __u32 minsize, __u32 *ofs, __u32 *len)
++int jffs2_reserve_space_gc(struct jffs2_sb_info *c, uint32_t minsize, uint32_t *ofs, uint32_t *len)
+ {
+ int ret = -EAGAIN;
+ minsize = PAD(minsize);
+
+ D1(printk(KERN_DEBUG "jffs2_reserve_space_gc(): Requested 0x%x bytes\n", minsize));
+
+- spin_lock_bh(&c->erase_completion_lock);
++ spin_lock(&c->erase_completion_lock);
+ while(ret == -EAGAIN) {
+ ret = jffs2_do_reserve_space(c, minsize, ofs, len);
+ if (ret) {
+ D1(printk(KERN_DEBUG "jffs2_reserve_space_gc: looping, ret is %d\n", ret));
+ }
+ }
+- spin_unlock_bh(&c->erase_completion_lock);
++ spin_unlock(&c->erase_completion_lock);
+ return ret;
+ }
+
+ /* Called with alloc sem _and_ erase_completion_lock */
+-static int jffs2_do_reserve_space(struct jffs2_sb_info *c, __u32 minsize, __u32 *ofs, __u32 *len)
++static int jffs2_do_reserve_space(struct jffs2_sb_info *c, uint32_t minsize, uint32_t *ofs, uint32_t *len)
+ {
+ struct jffs2_eraseblock *jeb = c->nextblock;
+
+ restart:
+ if (jeb && minsize > jeb->free_size) {
+ /* Skip the end of this block and file it as having some dirty space */
+- c->dirty_size += jeb->free_size;
++ /* If there's a pending write to it, flush now */
++ if (jffs2_wbuf_dirty(c)) {
++ spin_unlock(&c->erase_completion_lock);
++ D1(printk(KERN_DEBUG "jffs2_do_reserve_space: Flushing write buffer\n"));
++ jffs2_flush_wbuf_pad(c);
++ spin_lock(&c->erase_completion_lock);
++ jeb = c->nextblock;
++ goto restart;
++ }
++ c->wasted_size += jeb->free_size;
+ c->free_size -= jeb->free_size;
+- jeb->dirty_size += jeb->free_size;
++ jeb->wasted_size += jeb->free_size;
+ jeb->free_size = 0;
++
++ /* Check, if we have a dirty block now, or if it was dirty already */
++ if (ISDIRTY (jeb->wasted_size + jeb->dirty_size)) {
++ c->dirty_size += jeb->wasted_size;
++ c->wasted_size -= jeb->wasted_size;
++ jeb->dirty_size += jeb->wasted_size;
++ jeb->wasted_size = 0;
++ if (VERYDIRTY(c, jeb->dirty_size)) {
++ D1(printk(KERN_DEBUG "Adding full erase block at 0x%08x to very_dirty_list (free 0x%08x, dirty 0x%08x, used 0x%08x\n",
++ jeb->offset, jeb->free_size, jeb->dirty_size, jeb->used_size));
++ list_add_tail(&jeb->list, &c->very_dirty_list);
++ } else {
+ D1(printk(KERN_DEBUG "Adding full erase block at 0x%08x to dirty_list (free 0x%08x, dirty 0x%08x, used 0x%08x\n",
+ jeb->offset, jeb->free_size, jeb->dirty_size, jeb->used_size));
+ list_add_tail(&jeb->list, &c->dirty_list);
++ }
++ } else {
++ D1(printk(KERN_DEBUG "Adding full erase block at 0x%08x to clean_list (free 0x%08x, dirty 0x%08x, used 0x%08x\n",
++ jeb->offset, jeb->free_size, jeb->dirty_size, jeb->used_size));
++ list_add_tail(&jeb->list, &c->clean_list);
++ }
+ c->nextblock = jeb = NULL;
+ }
+
+@@ -164,33 +209,44 @@
+
+ if (list_empty(&c->free_list)) {
+
+- DECLARE_WAITQUEUE(wait, current);
++ if (!c->nr_erasing_blocks &&
++ !list_empty(&c->erasable_list)) {
++ struct jffs2_eraseblock *ejeb;
++
++ ejeb = list_entry(c->erasable_list.next, struct jffs2_eraseblock, list);
++ list_del(&ejeb->list);
++ list_add_tail(&ejeb->list, &c->erase_pending_list);
++ c->nr_erasing_blocks++;
++ jffs2_erase_pending_trigger(c);
++ D1(printk(KERN_DEBUG "jffs2_do_reserve_space: Triggering erase of erasable block at 0x%08x\n",
++ ejeb->offset));
++ }
++
++ if (!c->nr_erasing_blocks &&
++ !list_empty(&c->erasable_pending_wbuf_list)) {
++ D1(printk(KERN_DEBUG "jffs2_do_reserve_space: Flushing write buffer\n"));
++ /* c->nextblock is NULL, no update to c->nextblock allowed */
++ spin_unlock(&c->erase_completion_lock);
++ jffs2_flush_wbuf_pad(c);
++ spin_lock(&c->erase_completion_lock);
++ /* Have another go. It'll be on the erasable_list now */
++ return -EAGAIN;
++ }
+
+ if (!c->nr_erasing_blocks) {
+-// if (list_empty(&c->erasing_list) && list_empty(&c->erase_pending_list) && list_empty(c->erase_complete_list)) {
+ /* Ouch. We're in GC, or we wouldn't have got here.
+ And there's no space left. At all. */
+- printk(KERN_CRIT "Argh. No free space left for GC. nr_erasing_blocks is %d. nr_free_blocks is %d. (erasingempty: %s, erasependingempty: %s)\n",
+- c->nr_erasing_blocks, c->nr_free_blocks, list_empty(&c->erasing_list)?"yes":"no", list_empty(&c->erase_pending_list)?"yes":"no");
++ printk(KERN_CRIT "Argh. No free space left for GC. nr_erasing_blocks is %d. nr_free_blocks is %d. (erasableempty: %s, erasingempty: %s, erasependingempty: %s)\n",
++ c->nr_erasing_blocks, c->nr_free_blocks, list_empty(&c->erasable_list)?"yes":"no",
++ list_empty(&c->erasing_list)?"yes":"no", list_empty(&c->erase_pending_list)?"yes":"no");
+ return -ENOSPC;
+ }
+- /* Make sure this can't deadlock. Someone has to start the erases
+- of erase_pending blocks */
+- set_current_state(TASK_INTERRUPTIBLE);
+- add_wait_queue(&c->erase_wait, &wait);
+- D1(printk(KERN_DEBUG "Waiting for erases to complete. erasing_blocks is %d. (erasingempty: %s, erasependingempty: %s)\n",
+- c->nr_erasing_blocks, list_empty(&c->erasing_list)?"yes":"no", list_empty(&c->erase_pending_list)?"yes":"no"));
+- if (!list_empty(&c->erase_pending_list)) {
+- D1(printk(KERN_DEBUG "Triggering pending erases\n"));
+- jffs2_erase_pending_trigger(c);
+- }
+- spin_unlock_bh(&c->erase_completion_lock);
+- schedule();
+- remove_wait_queue(&c->erase_wait, &wait);
+- spin_lock_bh(&c->erase_completion_lock);
+- if (signal_pending(current)) {
+- return -EINTR;
+- }
++
++ spin_unlock(&c->erase_completion_lock);
++ /* Don't wait for it; just erase one right now */
++ jffs2_erase_pending_blocks(c, 1);
++ spin_lock(&c->erase_completion_lock);
++
+ /* An erase may have failed, decreasing the
+ amount of free space available. So we must
+ restart from the beginning */
+@@ -201,7 +257,8 @@
+ list_del(next);
+ c->nextblock = jeb = list_entry(next, struct jffs2_eraseblock, list);
+ c->nr_free_blocks--;
+- if (jeb->free_size != c->sector_size - sizeof(struct jffs2_unknown_node)) {
++
++ if (jeb->free_size != c->sector_size - c->cleanmarker_size) {
+ printk(KERN_WARNING "Eep. Block 0x%08x taken from free_list had free_size of 0x%08x!!\n", jeb->offset, jeb->free_size);
+ goto restart;
+ }
+@@ -210,6 +267,20 @@
+ enough space */
+ *ofs = jeb->offset + (c->sector_size - jeb->free_size);
+ *len = jeb->free_size;
++
++ if (c->cleanmarker_size && jeb->used_size == c->cleanmarker_size &&
++ !jeb->first_node->next_in_ino) {
++ /* Only node in it beforehand was a CLEANMARKER node (we think).
++ So mark it obsolete now that there's going to be another node
++ in the block. This will reduce used_size to zero but We've
++ already set c->nextblock so that jffs2_mark_node_obsolete()
++ won't try to refile it to the dirty_list.
++ */
++ spin_unlock(&c->erase_completion_lock);
++ jffs2_mark_node_obsolete(c, jeb->first_node);
++ spin_lock(&c->erase_completion_lock);
++ }
++
+ D1(printk(KERN_DEBUG "jffs2_do_reserve_space(): Giving 0x%x bytes at 0x%x\n", *len, *ofs));
+ return 0;
+ }
+@@ -217,9 +288,9 @@
+ /**
+ * jffs2_add_physical_node_ref - add a physical node reference to the list
+ * @c: superblock info
+- * @ofs: physical location of this physical node
++ * @new: new node reference to add
+ * @len: length of this physical node
+- * @ino: inode number with which this physical node is associated
++ * @dirty: dirty flag for new node
+ *
+ * Should only be used to report nodes for which space has been allocated
+ * by jffs2_reserve_space.
+@@ -227,47 +298,58 @@
+ * Must be called with the alloc_sem held.
+ */
+
+-int jffs2_add_physical_node_ref(struct jffs2_sb_info *c, struct jffs2_raw_node_ref *new, __u32 len, int dirty)
++int jffs2_add_physical_node_ref(struct jffs2_sb_info *c, struct jffs2_raw_node_ref *new)
+ {
+ struct jffs2_eraseblock *jeb;
++ uint32_t len;
++
++ jeb = &c->blocks[new->flash_offset / c->sector_size];
++ len = ref_totlen(c, jeb, new);
+
+- len = PAD(len);
+- jeb = &c->blocks[(new->flash_offset & ~3) / c->sector_size];
+- D1(printk(KERN_DEBUG "jffs2_add_physical_node_ref(): Node at 0x%x, size 0x%x\n", new->flash_offset & ~3, len));
++ D1(printk(KERN_DEBUG "jffs2_add_physical_node_ref(): Node at 0x%x(%d), size 0x%x\n", ref_offset(new), ref_flags(new), len));
+ #if 1
+- if (jeb != c->nextblock || (new->flash_offset & ~3) != jeb->offset + (c->sector_size - jeb->free_size)) {
++ if (jeb != c->nextblock || (ref_offset(new)) != jeb->offset + (c->sector_size - jeb->free_size)) {
+ printk(KERN_WARNING "argh. node added in wrong place\n");
+ jffs2_free_raw_node_ref(new);
+ return -EINVAL;
+ }
+ #endif
++ spin_lock(&c->erase_completion_lock);
++
+ if (!jeb->first_node)
+ jeb->first_node = new;
+ if (jeb->last_node)
+ jeb->last_node->next_phys = new;
+ jeb->last_node = new;
+
+- spin_lock_bh(&c->erase_completion_lock);
+ jeb->free_size -= len;
+ c->free_size -= len;
+- if (dirty) {
+- new->flash_offset |= 1;
++ if (ref_obsolete(new)) {
+ jeb->dirty_size += len;
+ c->dirty_size += len;
+ } else {
+ jeb->used_size += len;
+ c->used_size += len;
+ }
+- spin_unlock_bh(&c->erase_completion_lock);
++
+ if (!jeb->free_size && !jeb->dirty_size) {
+ /* If it lives on the dirty_list, jffs2_reserve_space will put it there */
+ D1(printk(KERN_DEBUG "Adding full erase block at 0x%08x to clean_list (free 0x%08x, dirty 0x%08x, used 0x%08x\n",
+ jeb->offset, jeb->free_size, jeb->dirty_size, jeb->used_size));
++ if (jffs2_wbuf_dirty(c)) {
++ /* Flush the last write in the block if it's outstanding */
++ spin_unlock(&c->erase_completion_lock);
++ jffs2_flush_wbuf_pad(c);
++ spin_lock(&c->erase_completion_lock);
++ }
++
+ list_add_tail(&jeb->list, &c->clean_list);
+ c->nextblock = NULL;
+ }
+ ACCT_SANITY_CHECK(c,jeb);
+- ACCT_PARANOIA_CHECK(jeb);
++ D1(ACCT_PARANOIA_CHECK(jeb));
++
++ spin_unlock(&c->erase_completion_lock);
+
+ return 0;
+ }
+@@ -280,20 +362,34 @@
+ up(&c->alloc_sem);
+ }
+
++static inline int on_list(struct list_head *obj, struct list_head *head)
++{
++ struct list_head *this;
++
++ list_for_each(this, head) {
++ if (this == obj) {
++ D1(printk("%p is on list at %p\n", obj, head));
++ return 1;
++
++ }
++ }
++ return 0;
++}
++
+ void jffs2_mark_node_obsolete(struct jffs2_sb_info *c, struct jffs2_raw_node_ref *ref)
+ {
+ struct jffs2_eraseblock *jeb;
+ int blocknr;
+ struct jffs2_unknown_node n;
+- int ret;
+- ssize_t retlen;
++ int ret, addedsize;
++ size_t retlen;
+
+ if(!ref) {
+ printk(KERN_NOTICE "EEEEEK. jffs2_mark_node_obsolete called with NULL node\n");
+ return;
+ }
+- if (ref->flash_offset & 1) {
+- D1(printk(KERN_DEBUG "jffs2_mark_node_obsolete called with already obsolete node at 0x%08x\n", ref->flash_offset &~3));
++ if (ref_obsolete(ref)) {
++ D1(printk(KERN_DEBUG "jffs2_mark_node_obsolete called with already obsolete node at 0x%08x\n", ref_offset(ref)));
+ return;
+ }
+ blocknr = ref->flash_offset / c->sector_size;
+@@ -302,22 +398,63 @@
+ BUG();
+ }
+ jeb = &c->blocks[blocknr];
+- if (jeb->used_size < ref->totlen) {
++
++ spin_lock(&c->erase_completion_lock);
++
++ if (ref_flags(ref) == REF_UNCHECKED) {
++ D1(if (unlikely(jeb->unchecked_size < ref_totlen(c, jeb, ref))) {
++ printk(KERN_NOTICE "raw unchecked node of size 0x%08x freed from erase block %d at 0x%08x, but unchecked_size was already 0x%08x\n",
++ ref_totlen(c, jeb, ref), blocknr, ref->flash_offset, jeb->used_size);
++ BUG();
++ })
++ D1(printk(KERN_DEBUG "Obsoleting previously unchecked node at 0x%08x of len %x: ", ref_offset(ref), ref_totlen(c, jeb, ref)));
++ jeb->unchecked_size -= ref_totlen(c, jeb, ref);
++ c->unchecked_size -= ref_totlen(c, jeb, ref);
++ } else {
++ D1(if (unlikely(jeb->used_size < ref_totlen(c, jeb, ref))) {
+ printk(KERN_NOTICE "raw node of size 0x%08x freed from erase block %d at 0x%08x, but used_size was already 0x%08x\n",
+- ref->totlen, blocknr, ref->flash_offset, jeb->used_size);
++ ref_totlen(c, jeb, ref), blocknr, ref->flash_offset, jeb->used_size);
+ BUG();
++ })
++ D1(printk(KERN_DEBUG "Obsoleting node at 0x%08x of len %x: ", ref_offset(ref), ref_totlen(c, jeb, ref)));
++ jeb->used_size -= ref_totlen(c, jeb, ref);
++ c->used_size -= ref_totlen(c, jeb, ref);
++ }
++
++ // Take care, that wasted size is taken into concern
++ if ((jeb->dirty_size || ISDIRTY(jeb->wasted_size + ref_totlen(c, jeb, ref))) && jeb != c->nextblock) {
++ D1(printk("Dirtying\n"));
++ addedsize = ref_totlen(c, jeb, ref);
++ jeb->dirty_size += ref_totlen(c, jeb, ref);
++ c->dirty_size += ref_totlen(c, jeb, ref);
++
++ /* Convert wasted space to dirty, if not a bad block */
++ if (jeb->wasted_size) {
++ if (on_list(&jeb->list, &c->bad_used_list)) {
++ D1(printk(KERN_DEBUG "Leaving block at %08x on the bad_used_list\n",
++ jeb->offset));
++ addedsize = 0; /* To fool the refiling code later */
++ } else {
++ D1(printk(KERN_DEBUG "Converting %d bytes of wasted space to dirty in block at %08x\n",
++ jeb->wasted_size, jeb->offset));
++ addedsize += jeb->wasted_size;
++ jeb->dirty_size += jeb->wasted_size;
++ c->dirty_size += jeb->wasted_size;
++ c->wasted_size -= jeb->wasted_size;
++ jeb->wasted_size = 0;
+ }
+-
+- spin_lock_bh(&c->erase_completion_lock);
+- jeb->used_size -= ref->totlen;
+- jeb->dirty_size += ref->totlen;
+- c->used_size -= ref->totlen;
+- c->dirty_size += ref->totlen;
+- ref->flash_offset |= 1;
++ }
++ } else {
++ D1(printk("Wasting\n"));
++ addedsize = 0;
++ jeb->wasted_size += ref_totlen(c, jeb, ref);
++ c->wasted_size += ref_totlen(c, jeb, ref);
++ }
++ ref->flash_offset = ref_offset(ref) | REF_OBSOLETE;
+
+ ACCT_SANITY_CHECK(c, jeb);
+
+- ACCT_PARANOIA_CHECK(jeb);
++ D1(ACCT_PARANOIA_CHECK(jeb));
+
+ if (c->flags & JFFS2_SB_FLAG_MOUNTING) {
+ /* Mount in progress. Don't muck about with the block
+@@ -325,68 +462,280 @@
+ obliterate nodes that look obsolete. If they weren't
+ marked obsolete on the flash at the time they _became_
+ obsolete, there was probably a reason for that. */
+- spin_unlock_bh(&c->erase_completion_lock);
++ spin_unlock(&c->erase_completion_lock);
+ return;
+ }
++
+ if (jeb == c->nextblock) {
+ D2(printk(KERN_DEBUG "Not moving nextblock 0x%08x to dirty/erase_pending list\n", jeb->offset));
+- } else if (jeb == c->gcblock) {
+- D2(printk(KERN_DEBUG "Not moving gcblock 0x%08x to dirty/erase_pending list\n", jeb->offset));
+-#if 0 /* We no longer do this here. It can screw the wear levelling. If you have a lot of static
+- data and a few blocks free, and you just create new files and keep deleting/overwriting
+- them, then you'd keep erasing and reusing those blocks without ever moving stuff around.
+- So we leave completely obsoleted blocks on the dirty_list and let the GC delete them
+- when it finds them there. That way, we still get the 'once in a while, take a clean block'
+- to spread out the flash usage */
+- } else if (!jeb->used_size) {
++ } else if (!jeb->used_size && !jeb->unchecked_size) {
++ if (jeb == c->gcblock) {
++ D1(printk(KERN_DEBUG "gcblock at 0x%08x completely dirtied. Clearing gcblock...\n", jeb->offset));
++ c->gcblock = NULL;
++ } else {
+ D1(printk(KERN_DEBUG "Eraseblock at 0x%08x completely dirtied. Removing from (dirty?) list...\n", jeb->offset));
+ list_del(&jeb->list);
++ }
++ if (jffs2_wbuf_dirty(c)) {
++ D1(printk(KERN_DEBUG "...and adding to erasable_pending_wbuf_list\n"));
++ list_add_tail(&jeb->list, &c->erasable_pending_wbuf_list);
++ } else {
++ if (jiffies & 127) {
++ /* Most of the time, we just erase it immediately. Otherwise we
++ spend ages scanning it on mount, etc. */
+ D1(printk(KERN_DEBUG "...and adding to erase_pending_list\n"));
+ list_add_tail(&jeb->list, &c->erase_pending_list);
+ c->nr_erasing_blocks++;
+ jffs2_erase_pending_trigger(c);
+- // OFNI_BS_2SFFJ(c)->s_dirt = 1;
++ } else {
++ /* Sometimes, however, we leave it elsewhere so it doesn't get
++ immediately reused, and we spread the load a bit. */
++ D1(printk(KERN_DEBUG "...and adding to erasable_list\n"));
++ list_add_tail(&jeb->list, &c->erasable_list);
++ }
++ }
+ D1(printk(KERN_DEBUG "Done OK\n"));
+-#endif
+- } else if (jeb->dirty_size == ref->totlen) {
++ } else if (jeb == c->gcblock) {
++ D2(printk(KERN_DEBUG "Not moving gcblock 0x%08x to dirty_list\n", jeb->offset));
++ } else if (ISDIRTY(jeb->dirty_size) && !ISDIRTY(jeb->dirty_size - addedsize)) {
+ D1(printk(KERN_DEBUG "Eraseblock at 0x%08x is freshly dirtied. Removing from clean list...\n", jeb->offset));
+ list_del(&jeb->list);
+ D1(printk(KERN_DEBUG "...and adding to dirty_list\n"));
+ list_add_tail(&jeb->list, &c->dirty_list);
++ } else if (VERYDIRTY(c, jeb->dirty_size) &&
++ !VERYDIRTY(c, jeb->dirty_size - addedsize)) {
++ D1(printk(KERN_DEBUG "Eraseblock at 0x%08x is now very dirty. Removing from dirty list...\n", jeb->offset));
++ list_del(&jeb->list);
++ D1(printk(KERN_DEBUG "...and adding to very_dirty_list\n"));
++ list_add_tail(&jeb->list, &c->very_dirty_list);
++ } else {
++ D1(printk(KERN_DEBUG "Eraseblock at 0x%08x not moved anywhere. (free 0x%08x, dirty 0x%08x, used 0x%08x)\n",
++ jeb->offset, jeb->free_size, jeb->dirty_size, jeb->used_size));
+ }
+- spin_unlock_bh(&c->erase_completion_lock);
+
+- if (c->mtd->type != MTD_NORFLASH && c->mtd->type != MTD_RAM)
++ spin_unlock(&c->erase_completion_lock);
++
++ if (!jffs2_can_mark_obsolete(c))
+ return;
+- if (OFNI_BS_2SFFJ(c)->s_flags & MS_RDONLY)
++ if (jffs2_is_readonly(c))
+ return;
+
+- D1(printk(KERN_DEBUG "obliterating obsoleted node at 0x%08x\n", ref->flash_offset &~3));
+- ret = c->mtd->read(c->mtd, ref->flash_offset &~3, sizeof(n), &retlen, (char *)&n);
++ D1(printk(KERN_DEBUG "obliterating obsoleted node at 0x%08x\n", ref_offset(ref)));
++ ret = jffs2_flash_read(c, ref_offset(ref), sizeof(n), &retlen, (char *)&n);
+ if (ret) {
+- printk(KERN_WARNING "Read error reading from obsoleted node at 0x%08x: %d\n", ref->flash_offset &~3, ret);
++ printk(KERN_WARNING "Read error reading from obsoleted node at 0x%08x: %d\n", ref_offset(ref), ret);
+ return;
+ }
+ if (retlen != sizeof(n)) {
+- printk(KERN_WARNING "Short read from obsoleted node at 0x%08x: %d\n", ref->flash_offset &~3, retlen);
++ printk(KERN_WARNING "Short read from obsoleted node at 0x%08x: %zd\n", ref_offset(ref), retlen);
+ return;
+ }
+- if (PAD(n.totlen) != PAD(ref->totlen)) {
+- printk(KERN_WARNING "Node totlen on flash (0x%08x) != totlen in node ref (0x%08x)\n", n.totlen, ref->totlen);
++ if (PAD(je32_to_cpu(n.totlen)) != PAD(ref_totlen(c, jeb, ref))) {
++ printk(KERN_WARNING "Node totlen on flash (0x%08x) != totlen from node ref (0x%08x)\n", je32_to_cpu(n.totlen), ref_totlen(c, jeb, ref));
+ return;
+ }
+- if (!(n.nodetype & JFFS2_NODE_ACCURATE)) {
+- D1(printk(KERN_DEBUG "Node at 0x%08x was already marked obsolete (nodetype 0x%04x\n", ref->flash_offset &~3, n.nodetype));
++ if (!(je16_to_cpu(n.nodetype) & JFFS2_NODE_ACCURATE)) {
++ D1(printk(KERN_DEBUG "Node at 0x%08x was already marked obsolete (nodetype 0x%04x)\n", ref_offset(ref), je16_to_cpu(n.nodetype)));
+ return;
+ }
+- n.nodetype &= ~JFFS2_NODE_ACCURATE;
+- ret = c->mtd->write(c->mtd, ref->flash_offset&~3, sizeof(n), &retlen, (char *)&n);
++ /* XXX FIXME: This is ugly now */
++ n.nodetype = cpu_to_je16(je16_to_cpu(n.nodetype) & ~JFFS2_NODE_ACCURATE);
++ ret = jffs2_flash_write(c, ref_offset(ref), sizeof(n), &retlen, (char *)&n);
+ if (ret) {
+- printk(KERN_WARNING "Write error in obliterating obsoleted node at 0x%08x: %d\n", ref->flash_offset &~3, ret);
++ printk(KERN_WARNING "Write error in obliterating obsoleted node at 0x%08x: %d\n", ref_offset(ref), ret);
+ return;
+ }
+ if (retlen != sizeof(n)) {
+- printk(KERN_WARNING "Short write in obliterating obsoleted node at 0x%08x: %d\n", ref->flash_offset &~3, retlen);
++ printk(KERN_WARNING "Short write in obliterating obsoleted node at 0x%08x: %zd\n", ref_offset(ref), retlen);
+ return;
+ }
+ }
++
++#if CONFIG_JFFS2_FS_DEBUG > 0
++void jffs2_dump_block_lists(struct jffs2_sb_info *c)
++{
++
++
++ printk(KERN_DEBUG "jffs2_dump_block_lists:\n");
++ printk(KERN_DEBUG "flash_size: %08x\n", c->flash_size);
++ printk(KERN_DEBUG "used_size: %08x\n", c->used_size);
++ printk(KERN_DEBUG "dirty_size: %08x\n", c->dirty_size);
++ printk(KERN_DEBUG "wasted_size: %08x\n", c->wasted_size);
++ printk(KERN_DEBUG "unchecked_size: %08x\n", c->unchecked_size);
++ printk(KERN_DEBUG "free_size: %08x\n", c->free_size);
++ printk(KERN_DEBUG "erasing_size: %08x\n", c->erasing_size);
++ printk(KERN_DEBUG "bad_size: %08x\n", c->bad_size);
++ printk(KERN_DEBUG "sector_size: %08x\n", c->sector_size);
++ printk(KERN_DEBUG "jffs2_reserved_blocks size: %08x\n",c->sector_size * c->resv_blocks_write);
++
++ if (c->nextblock) {
++ printk(KERN_DEBUG "nextblock: %08x (used %08x, dirty %08x, wasted %08x, unchecked %08x, free %08x)\n",
++ c->nextblock->offset, c->nextblock->used_size, c->nextblock->dirty_size, c->nextblock->wasted_size, c->nextblock->unchecked_size, c->nextblock->free_size);
++ } else {
++ printk(KERN_DEBUG "nextblock: NULL\n");
++ }
++ if (c->gcblock) {
++ printk(KERN_DEBUG "gcblock: %08x (used %08x, dirty %08x, wasted %08x, unchecked %08x, free %08x)\n",
++ c->gcblock->offset, c->gcblock->used_size, c->gcblock->dirty_size, c->gcblock->wasted_size, c->gcblock->unchecked_size, c->gcblock->free_size);
++ } else {
++ printk(KERN_DEBUG "gcblock: NULL\n");
++ }
++ if (list_empty(&c->clean_list)) {
++ printk(KERN_DEBUG "clean_list: empty\n");
++ } else {
++ struct list_head *this;
++ int numblocks = 0;
++ uint32_t dirty = 0;
++
++ list_for_each(this, &c->clean_list) {
++ struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
++ numblocks ++;
++ dirty += jeb->wasted_size;
++ printk(KERN_DEBUG "clean_list: %08x (used %08x, dirty %08x, wasted %08x, unchecked %08x, free %08x)\n", jeb->offset, jeb->used_size, jeb->dirty_size, jeb->wasted_size, jeb->unchecked_size, jeb->free_size);
++ }
++ printk (KERN_DEBUG "Contains %d blocks with total wasted size %u, average wasted size: %u\n", numblocks, dirty, dirty / numblocks);
++ }
++ if (list_empty(&c->very_dirty_list)) {
++ printk(KERN_DEBUG "very_dirty_list: empty\n");
++ } else {
++ struct list_head *this;
++ int numblocks = 0;
++ uint32_t dirty = 0;
++
++ list_for_each(this, &c->very_dirty_list) {
++ struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
++ numblocks ++;
++ dirty += jeb->dirty_size;
++ printk(KERN_DEBUG "very_dirty_list: %08x (used %08x, dirty %08x, wasted %08x, unchecked %08x, free %08x)\n",
++ jeb->offset, jeb->used_size, jeb->dirty_size, jeb->wasted_size, jeb->unchecked_size, jeb->free_size);
++ }
++ printk (KERN_DEBUG "Contains %d blocks with total dirty size %u, average dirty size: %u\n",
++ numblocks, dirty, dirty / numblocks);
++ }
++ if (list_empty(&c->dirty_list)) {
++ printk(KERN_DEBUG "dirty_list: empty\n");
++ } else {
++ struct list_head *this;
++ int numblocks = 0;
++ uint32_t dirty = 0;
++
++ list_for_each(this, &c->dirty_list) {
++ struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
++ numblocks ++;
++ dirty += jeb->dirty_size;
++ printk(KERN_DEBUG "dirty_list: %08x (used %08x, dirty %08x, wasted %08x, unchecked %08x, free %08x)\n",
++ jeb->offset, jeb->used_size, jeb->dirty_size, jeb->wasted_size, jeb->unchecked_size, jeb->free_size);
++ }
++ printk (KERN_DEBUG "Contains %d blocks with total dirty size %u, average dirty size: %u\n",
++ numblocks, dirty, dirty / numblocks);
++ }
++ if (list_empty(&c->erasable_list)) {
++ printk(KERN_DEBUG "erasable_list: empty\n");
++ } else {
++ struct list_head *this;
++
++ list_for_each(this, &c->erasable_list) {
++ struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
++ printk(KERN_DEBUG "erasable_list: %08x (used %08x, dirty %08x, wasted %08x, unchecked %08x, free %08x)\n",
++ jeb->offset, jeb->used_size, jeb->dirty_size, jeb->wasted_size, jeb->unchecked_size, jeb->free_size);
++ }
++ }
++ if (list_empty(&c->erasing_list)) {
++ printk(KERN_DEBUG "erasing_list: empty\n");
++ } else {
++ struct list_head *this;
++
++ list_for_each(this, &c->erasing_list) {
++ struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
++ printk(KERN_DEBUG "erasing_list: %08x (used %08x, dirty %08x, wasted %08x, unchecked %08x, free %08x)\n",
++ jeb->offset, jeb->used_size, jeb->dirty_size, jeb->wasted_size, jeb->unchecked_size, jeb->free_size);
++ }
++ }
++ if (list_empty(&c->erase_pending_list)) {
++ printk(KERN_DEBUG "erase_pending_list: empty\n");
++ } else {
++ struct list_head *this;
++
++ list_for_each(this, &c->erase_pending_list) {
++ struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
++ printk(KERN_DEBUG "erase_pending_list: %08x (used %08x, dirty %08x, wasted %08x, unchecked %08x, free %08x)\n",
++ jeb->offset, jeb->used_size, jeb->dirty_size, jeb->wasted_size, jeb->unchecked_size, jeb->free_size);
++ }
++ }
++ if (list_empty(&c->erasable_pending_wbuf_list)) {
++ printk(KERN_DEBUG "erasable_pending_wbuf_list: empty\n");
++ } else {
++ struct list_head *this;
++
++ list_for_each(this, &c->erasable_pending_wbuf_list) {
++ struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
++ printk(KERN_DEBUG "erasable_pending_wbuf_list: %08x (used %08x, dirty %08x, wasted %08x, unchecked %08x, free %08x)\n",
++ jeb->offset, jeb->used_size, jeb->dirty_size, jeb->wasted_size, jeb->unchecked_size, jeb->free_size);
++ }
++ }
++ if (list_empty(&c->free_list)) {
++ printk(KERN_DEBUG "free_list: empty\n");
++ } else {
++ struct list_head *this;
++
++ list_for_each(this, &c->free_list) {
++ struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
++ printk(KERN_DEBUG "free_list: %08x (used %08x, dirty %08x, wasted %08x, unchecked %08x, free %08x)\n",
++ jeb->offset, jeb->used_size, jeb->dirty_size, jeb->wasted_size, jeb->unchecked_size, jeb->free_size);
++ }
++ }
++ if (list_empty(&c->bad_list)) {
++ printk(KERN_DEBUG "bad_list: empty\n");
++ } else {
++ struct list_head *this;
++
++ list_for_each(this, &c->bad_list) {
++ struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
++ printk(KERN_DEBUG "bad_list: %08x (used %08x, dirty %08x, wasted %08x, unchecked %08x, free %08x)\n",
++ jeb->offset, jeb->used_size, jeb->dirty_size, jeb->wasted_size, jeb->unchecked_size, jeb->free_size);
++ }
++ }
++ if (list_empty(&c->bad_used_list)) {
++ printk(KERN_DEBUG "bad_used_list: empty\n");
++ } else {
++ struct list_head *this;
++
++ list_for_each(this, &c->bad_used_list) {
++ struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
++ printk(KERN_DEBUG "bad_used_list: %08x (used %08x, dirty %08x, wasted %08x, unchecked %08x, free %08x)\n",
++ jeb->offset, jeb->used_size, jeb->dirty_size, jeb->wasted_size, jeb->unchecked_size, jeb->free_size);
++ }
++ }
++}
++#endif /* CONFIG_JFFS2_FS_DEBUG */
++
++int jffs2_thread_should_wake(struct jffs2_sb_info *c)
++{
++ int ret = 0;
++ uint32_t dirty;
++
++ if (c->unchecked_size) {
++ D1(printk(KERN_DEBUG "jffs2_thread_should_wake(): unchecked_size %d, checked_ino #%d\n",
++ c->unchecked_size, c->checked_ino));
++ return 1;
++ }
++
++ /* dirty_size contains blocks on erase_pending_list
++ * those blocks are counted in c->nr_erasing_blocks.
++ * If one block is actually erased, it is not longer counted as dirty_space
++ * but it is counted in c->nr_erasing_blocks, so we add it and subtract it
++ * with c->nr_erasing_blocks * c->sector_size again.
++ * Blocks on erasable_list are counted as dirty_size, but not in c->nr_erasing_blocks
++ * This helps us to force gc and pick eventually a clean block to spread the load.
++ */
++ dirty = c->dirty_size + c->erasing_size - c->nr_erasing_blocks * c->sector_size;
++
++ if (c->nr_free_blocks + c->nr_erasing_blocks < c->resv_blocks_gctrigger &&
++ (dirty > c->nospc_dirty_size))
++ ret = 1;
++
++ D1(printk(KERN_DEBUG "jffs2_thread_should_wake(): nr_free_blocks %d, nr_erasing_blocks %d, dirty_size 0x%x: %s\n",
++ c->nr_free_blocks, c->nr_erasing_blocks, c->dirty_size, ret?"yes":"no"));
++
++ return ret;
++}
+diff -Nurb linux-mips-2.4.27/fs/jffs2/os-linux.h linux/fs/jffs2/os-linux.h
+--- linux-mips-2.4.27/fs/jffs2/os-linux.h 1970-01-01 01:00:00.000000000 +0100
++++ linux/fs/jffs2/os-linux.h 2004-11-19 10:25:12.116166808 +0100
+@@ -0,0 +1,212 @@
++/*
++ * JFFS2 -- Journalling Flash File System, Version 2.
++ *
++ * Copyright (C) 2002-2003 Red Hat, Inc.
++ *
++ * Created by David Woodhouse <dwmw2@redhat.com>
++ *
++ * For licensing information, see the file 'LICENCE' in this directory.
++ *
++ * $Id: os-linux.h,v 1.41 2003/11/26 13:02:46 dwmw2 Exp $
++ *
++ */
++
++#ifndef __JFFS2_OS_LINUX_H__
++#define __JFFS2_OS_LINUX_H__
++#include <linux/version.h>
++
++/* JFFS2 uses Linux mode bits natively -- no need for conversion */
++#define os_to_jffs2_mode(x) (x)
++#define jffs2_to_os_mode(x) (x)
++
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,73)
++#define kstatfs statfs
++#endif
++
++#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,2)
++#define JFFS2_INODE_INFO(i) (list_entry(i, struct jffs2_inode_info, vfs_inode))
++#define OFNI_EDONI_2SFFJ(f) (&(f)->vfs_inode)
++#define JFFS2_SB_INFO(sb) (sb->s_fs_info)
++#define OFNI_BS_2SFFJ(c) ((struct super_block *)c->os_priv)
++#elif defined(JFFS2_OUT_OF_KERNEL)
++#define JFFS2_INODE_INFO(i) ((struct jffs2_inode_info *) &(i)->u)
++#define OFNI_EDONI_2SFFJ(f) ((struct inode *) ( ((char *)f) - ((char *)(&((struct inode *)NULL)->u)) ) )
++#define JFFS2_SB_INFO(sb) ((struct jffs2_sb_info *) &(sb)->u)
++#define OFNI_BS_2SFFJ(c) ((struct super_block *) ( ((char *)c) - ((char *)(&((struct super_block *)NULL)->u)) ) )
++#else
++#define JFFS2_INODE_INFO(i) (&i->u.jffs2_i)
++#define OFNI_EDONI_2SFFJ(f) ((struct inode *) ( ((char *)f) - ((char *)(&((struct inode *)NULL)->u)) ) )
++#define JFFS2_SB_INFO(sb) (&sb->u.jffs2_sb)
++#define OFNI_BS_2SFFJ(c) ((struct super_block *) ( ((char *)c) - ((char *)(&((struct super_block *)NULL)->u)) ) )
++#endif
++
++
++#define JFFS2_F_I_SIZE(f) (OFNI_EDONI_2SFFJ(f)->i_size)
++#define JFFS2_F_I_MODE(f) (OFNI_EDONI_2SFFJ(f)->i_mode)
++#define JFFS2_F_I_UID(f) (OFNI_EDONI_2SFFJ(f)->i_uid)
++#define JFFS2_F_I_GID(f) (OFNI_EDONI_2SFFJ(f)->i_gid)
++
++#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,1)
++#define JFFS2_F_I_RDEV_MIN(f) (iminor(OFNI_EDONI_2SFFJ(f)))
++#define JFFS2_F_I_RDEV_MAJ(f) (imajor(OFNI_EDONI_2SFFJ(f)))
++#else
++#define JFFS2_F_I_RDEV_MIN(f) (MINOR(to_kdev_t(OFNI_EDONI_2SFFJ(f)->i_rdev)))
++#define JFFS2_F_I_RDEV_MAJ(f) (MAJOR(to_kdev_t(OFNI_EDONI_2SFFJ(f)->i_rdev)))
++#endif
++
++/* Urgh. The things we do to keep the 2.4 build working */
++#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,47)
++#define ITIME(sec) ((struct timespec){sec, 0})
++#define I_SEC(tv) ((tv).tv_sec)
++#define JFFS2_F_I_CTIME(f) (OFNI_EDONI_2SFFJ(f)->i_ctime.tv_sec)
++#define JFFS2_F_I_MTIME(f) (OFNI_EDONI_2SFFJ(f)->i_mtime.tv_sec)
++#define JFFS2_F_I_ATIME(f) (OFNI_EDONI_2SFFJ(f)->i_atime.tv_sec)
++#else
++#define ITIME(x) (x)
++#define I_SEC(x) (x)
++#define JFFS2_F_I_CTIME(f) (OFNI_EDONI_2SFFJ(f)->i_ctime)
++#define JFFS2_F_I_MTIME(f) (OFNI_EDONI_2SFFJ(f)->i_mtime)
++#define JFFS2_F_I_ATIME(f) (OFNI_EDONI_2SFFJ(f)->i_atime)
++#endif
++
++#define sleep_on_spinunlock(wq, s) \
++ do { \
++ DECLARE_WAITQUEUE(__wait, current); \
++ add_wait_queue((wq), &__wait); \
++ set_current_state(TASK_UNINTERRUPTIBLE); \
++ spin_unlock(s); \
++ schedule(); \
++ remove_wait_queue((wq), &__wait); \
++ } while(0)
++
++static inline void jffs2_init_inode_info(struct jffs2_inode_info *f)
++{
++#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,2)
++ f->highest_version = 0;
++ f->fragtree = RB_ROOT;
++ f->metadata = NULL;
++ f->dents = NULL;
++ f->flags = 0;
++ f->usercompr = 0;
++#else
++ memset(f, 0, sizeof(*f));
++ init_MUTEX_LOCKED(&f->sem);
++#endif
++}
++
++#define jffs2_is_readonly(c) (OFNI_BS_2SFFJ(c)->s_flags & MS_RDONLY)
++
++#ifndef CONFIG_JFFS2_FS_NAND
++#define jffs2_can_mark_obsolete(c) (1)
++#define jffs2_cleanmarker_oob(c) (0)
++#define jffs2_write_nand_cleanmarker(c,jeb) (-EIO)
++
++#define jffs2_flash_write(c, ofs, len, retlen, buf) ((c)->mtd->write((c)->mtd, ofs, len, retlen, buf))
++#define jffs2_flash_read(c, ofs, len, retlen, buf) ((c)->mtd->read((c)->mtd, ofs, len, retlen, buf))
++#define jffs2_flush_wbuf_pad(c) ({ (void)(c), 0; })
++#define jffs2_flush_wbuf_gc(c, i) ({ (void)(c), (void) i, 0; })
++#define jffs2_nand_read_failcnt(c,jeb) do { ; } while(0)
++#define jffs2_write_nand_badblock(c,jeb) do { ; } while(0)
++#define jffs2_nand_flash_setup(c) (0)
++#define jffs2_nand_flash_cleanup(c) do {} while(0)
++#define jffs2_wbuf_dirty(c) (0)
++#define jffs2_flash_writev(a,b,c,d,e,f) jffs2_flash_direct_writev(a,b,c,d,e)
++#define jffs2_wbuf_timeout NULL
++#define jffs2_wbuf_process NULL
++
++#else /* NAND support present */
++
++#define jffs2_can_mark_obsolete(c) (c->mtd->type == MTD_NORFLASH || c->mtd->type == MTD_RAM)
++#define jffs2_cleanmarker_oob(c) (c->mtd->type == MTD_NANDFLASH)
++
++#define jffs2_flash_write_oob(c, ofs, len, retlen, buf) ((c)->mtd->write_oob((c)->mtd, ofs, len, retlen, buf))
++#define jffs2_flash_read_oob(c, ofs, len, retlen, buf) ((c)->mtd->read_oob((c)->mtd, ofs, len, retlen, buf))
++#define jffs2_wbuf_dirty(c) (!!(c)->wbuf_len)
++struct kstatfs;
++
++/* wbuf.c */
++int jffs2_flash_writev(struct jffs2_sb_info *c, const struct iovec *vecs, unsigned long count, loff_t to, size_t *retlen, uint32_t ino);
++int jffs2_flash_write(struct jffs2_sb_info *c, loff_t ofs, size_t len, size_t *retlen, const u_char *buf);
++int jffs2_flash_read(struct jffs2_sb_info *c, loff_t ofs, size_t len, size_t *retlen, u_char *buf);
++int jffs2_check_oob_empty(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb,int mode);
++int jffs2_check_nand_cleanmarker(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb);
++int jffs2_write_nand_cleanmarker(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb);
++int jffs2_write_nand_badblock(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb);
++void jffs2_wbuf_timeout(unsigned long data);
++void jffs2_wbuf_process(void *data);
++int jffs2_nand_flash_setup(struct jffs2_sb_info *c);
++void jffs2_nand_flash_cleanup(struct jffs2_sb_info *c);
++#endif /* NAND */
++
++/* erase.c */
++static inline void jffs2_erase_pending_trigger(struct jffs2_sb_info *c)
++{
++ OFNI_BS_2SFFJ(c)->s_dirt = 1;
++}
++
++/* background.c */
++int jffs2_start_garbage_collect_thread(struct jffs2_sb_info *c);
++void jffs2_stop_garbage_collect_thread(struct jffs2_sb_info *c);
++void jffs2_garbage_collect_trigger(struct jffs2_sb_info *c);
++
++/* dir.c */
++extern struct file_operations jffs2_dir_operations;
++extern struct inode_operations jffs2_dir_inode_operations;
++
++/* file.c */
++extern struct file_operations jffs2_file_operations;
++extern struct inode_operations jffs2_file_inode_operations;
++extern struct address_space_operations jffs2_file_address_operations;
++int jffs2_fsync(struct file *, struct dentry *, int);
++int jffs2_do_readpage_nolock (struct inode *inode, struct page *pg);
++int jffs2_do_readpage_unlock (struct inode *inode, struct page *pg);
++int jffs2_readpage (struct file *, struct page *);
++int jffs2_prepare_write (struct file *, struct page *, unsigned, unsigned);
++int jffs2_commit_write (struct file *, struct page *, unsigned, unsigned);
++
++/* ioctl.c */
++int jffs2_ioctl(struct inode *, struct file *, unsigned int, unsigned long);
++
++/* symlink.c */
++extern struct inode_operations jffs2_symlink_inode_operations;
++
++/* fs.c */
++int jffs2_setattr (struct dentry *, struct iattr *);
++void jffs2_read_inode (struct inode *);
++void jffs2_clear_inode (struct inode *);
++void jffs2_dirty_inode(struct inode *inode);
++struct inode *jffs2_new_inode (struct inode *dir_i, int mode,
++ struct jffs2_raw_inode *ri);
++int jffs2_statfs (struct super_block *, struct kstatfs *);
++void jffs2_write_super (struct super_block *);
++int jffs2_remount_fs (struct super_block *, int *, char *);
++int jffs2_do_fill_super(struct super_block *sb, void *data, int silent);
++void jffs2_gc_release_inode(struct jffs2_sb_info *c,
++ struct jffs2_inode_info *f);
++struct jffs2_inode_info *jffs2_gc_fetch_inode(struct jffs2_sb_info *c,
++ int inum, int nlink);
++
++unsigned char *jffs2_gc_fetch_page(struct jffs2_sb_info *c,
++ struct jffs2_inode_info *f,
++ unsigned long offset,
++ unsigned long *priv);
++void jffs2_gc_release_page(struct jffs2_sb_info *c,
++ unsigned char *pg,
++ unsigned long *priv);
++
++
++/* writev.c */
++int jffs2_flash_direct_writev(struct jffs2_sb_info *c, const struct iovec *vecs,
++ unsigned long count, loff_t to, size_t *retlen);
++
++/* Compression config */
++#define JFFS2_COMPRESSION
++#undef JFFS2_USE_DYNRUBIN /* Disabled 23/9/1. With zlib it hardly ever gets a look in */
++#undef JFFS2_USE_RUBINMIPS /* Disabled 26/2/1. Obsoleted by dynrubin */
++#define JFFS2_USE_ZLIB
++#define JFFS2_USE_RTIME /* rtime does manage to recompress already-compressed data */
++
++
++#endif /* __JFFS2_OS_LINUX_H__ */
++
++
+diff -Nurb linux-mips-2.4.27/fs/jffs2/pushpull.h linux/fs/jffs2/pushpull.h
+--- linux-mips-2.4.27/fs/jffs2/pushpull.h 2001-11-05 21:16:19.000000000 +0100
++++ linux/fs/jffs2/pushpull.h 2004-11-19 10:25:12.118166504 +0100
+@@ -1,42 +1,21 @@
+ /*
+ * JFFS2 -- Journalling Flash File System, Version 2.
+ *
+- * Copyright (C) 2001 Red Hat, Inc.
++ * Copyright (C) 2001, 2002 Red Hat, Inc.
+ *
+- * Created by David Woodhouse <dwmw2@cambridge.redhat.com>
++ * Created by David Woodhouse <dwmw2@redhat.com>
+ *
+- * The original JFFS, from which the design for JFFS2 was derived,
+- * was designed and implemented by Axis Communications AB.
++ * For licensing information, see the file 'LICENCE' in this directory.
+ *
+- * The contents of this file are subject to the Red Hat eCos Public
+- * License Version 1.1 (the "Licence"); you may not use this file
+- * except in compliance with the Licence. You may obtain a copy of
+- * the Licence at http://www.redhat.com/
+- *
+- * Software distributed under the Licence is distributed on an "AS IS"
+- * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
+- * See the Licence for the specific language governing rights and
+- * limitations under the Licence.
+- *
+- * The Original Code is JFFS2 - Journalling Flash File System, version 2
+- *
+- * Alternatively, the contents of this file may be used under the
+- * terms of the GNU General Public License version 2 (the "GPL"), in
+- * which case the provisions of the GPL are applicable instead of the
+- * above. If you wish to allow the use of your version of this file
+- * only under the terms of the GPL and not to allow others to use your
+- * version of this file under the RHEPL, indicate your decision by
+- * deleting the provisions above and replace them with the notice and
+- * other provisions required by the GPL. If you do not delete the
+- * provisions above, a recipient may use your version of this file
+- * under either the RHEPL or the GPL.
+- *
+- * $Id: pushpull.h,v 1.5 2001/09/23 10:04:15 rmk Exp $
++ * $Id: pushpull.h,v 1.9 2003/10/04 08:33:06 dwmw2 Exp $
+ *
+ */
+
+ #ifndef __PUSHPULL_H__
+ #define __PUSHPULL_H__
++
++#include <linux/errno.h>
++
+ struct pushpull {
+ unsigned char *buf;
+ unsigned int buflen;
+@@ -44,9 +23,36 @@
+ unsigned int reserve;
+ };
+
+-void init_pushpull(struct pushpull *, char *, unsigned, unsigned, unsigned);
+-int pushbit(struct pushpull *pp, int bit, int use_reserved);
+-int pushedbits(struct pushpull *pp);
++
++static inline void init_pushpull(struct pushpull *pp, char *buf, unsigned buflen, unsigned ofs, unsigned reserve)
++{
++ pp->buf = buf;
++ pp->buflen = buflen;
++ pp->ofs = ofs;
++ pp->reserve = reserve;
++}
++
++static inline int pushbit(struct pushpull *pp, int bit, int use_reserved)
++{
++ if (pp->ofs >= pp->buflen - (use_reserved?0:pp->reserve)) {
++ return -ENOSPC;
++ }
++
++ if (bit) {
++ pp->buf[pp->ofs >> 3] |= (1<<(7-(pp->ofs &7)));
++ }
++ else {
++ pp->buf[pp->ofs >> 3] &= ~(1<<(7-(pp->ofs &7)));
++ }
++ pp->ofs++;
++
++ return 0;
++}
++
++static inline int pushedbits(struct pushpull *pp)
++{
++ return pp->ofs;
++}
+
+ static inline int pullbit(struct pushpull *pp)
+ {
+diff -Nurb linux-mips-2.4.27/fs/jffs2/rbtree.c linux/fs/jffs2/rbtree.c
+--- linux-mips-2.4.27/fs/jffs2/rbtree.c 1970-01-01 01:00:00.000000000 +0100
++++ linux/fs/jffs2/rbtree.c 2004-11-19 10:25:12.120166200 +0100
+@@ -0,0 +1,363 @@
++/*
++ Red Black Trees
++ (C) 1999 Andrea Arcangeli <andrea@suse.de>
++ (C) 2002 David Woodhouse <dwmw2@infradead.org>
++
++ This program is free software; you can redistribute it and/or modify
++ it under the terms of the GNU General Public License as published by
++ the Free Software Foundation; either version 2 of the License, or
++ (at your option) any later version.
++
++ This program is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ GNU General Public License for more details.
++
++ You should have received a copy of the GNU General Public License
++ along with this program; if not, write to the Free Software
++ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
++
++ $Id: rbtree.c,v 1.3 2003/10/16 08:02:19 dwmw2 Exp $
++*/
++
++#ifdef __ECOS /* This file is _not_ under the eCos licence; it is pure GPL. */
++#error "Licence problem. eCos has its own rbtree code."
++#endif
++
++#include <linux/version.h>
++#include <linux/rbtree.h>
++
++/* This wasn't present till 2.4.11, wasn't exported till 2.4.19 */
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,11) || \
++ (LINUX_VERSION_CODE < KERNEL_VERSION(2,4,19) && defined(MODULE))
++static void __rb_rotate_left(struct rb_node * node, struct rb_root * root)
++{
++ struct rb_node * right = node->rb_right;
++
++ if ((node->rb_right = right->rb_left))
++ right->rb_left->rb_parent = node;
++ right->rb_left = node;
++
++ if ((right->rb_parent = node->rb_parent))
++ {
++ if (node == node->rb_parent->rb_left)
++ node->rb_parent->rb_left = right;
++ else
++ node->rb_parent->rb_right = right;
++ }
++ else
++ root->rb_node = right;
++ node->rb_parent = right;
++}
++
++static void __rb_rotate_right(struct rb_node * node, struct rb_root * root)
++{
++ struct rb_node * left = node->rb_left;
++
++ if ((node->rb_left = left->rb_right))
++ left->rb_right->rb_parent = node;
++ left->rb_right = node;
++
++ if ((left->rb_parent = node->rb_parent))
++ {
++ if (node == node->rb_parent->rb_right)
++ node->rb_parent->rb_right = left;
++ else
++ node->rb_parent->rb_left = left;
++ }
++ else
++ root->rb_node = left;
++ node->rb_parent = left;
++}
++
++void rb_insert_color(struct rb_node * node, struct rb_root * root)
++{
++ struct rb_node * parent, * gparent;
++
++ while ((parent = node->rb_parent) && parent->rb_color == RB_RED)
++ {
++ gparent = parent->rb_parent;
++
++ if (parent == gparent->rb_left)
++ {
++ {
++ register struct rb_node * uncle = gparent->rb_right;
++ if (uncle && uncle->rb_color == RB_RED)
++ {
++ uncle->rb_color = RB_BLACK;
++ parent->rb_color = RB_BLACK;
++ gparent->rb_color = RB_RED;
++ node = gparent;
++ continue;
++ }
++ }
++
++ if (parent->rb_right == node)
++ {
++ register struct rb_node * tmp;
++ __rb_rotate_left(parent, root);
++ tmp = parent;
++ parent = node;
++ node = tmp;
++ }
++
++ parent->rb_color = RB_BLACK;
++ gparent->rb_color = RB_RED;
++ __rb_rotate_right(gparent, root);
++ } else {
++ {
++ register struct rb_node * uncle = gparent->rb_left;
++ if (uncle && uncle->rb_color == RB_RED)
++ {
++ uncle->rb_color = RB_BLACK;
++ parent->rb_color = RB_BLACK;
++ gparent->rb_color = RB_RED;
++ node = gparent;
++ continue;
++ }
++ }
++
++ if (parent->rb_left == node)
++ {
++ register struct rb_node * tmp;
++ __rb_rotate_right(parent, root);
++ tmp = parent;
++ parent = node;
++ node = tmp;
++ }
++
++ parent->rb_color = RB_BLACK;
++ gparent->rb_color = RB_RED;
++ __rb_rotate_left(gparent, root);
++ }
++ }
++
++ root->rb_node->rb_color = RB_BLACK;
++}
++
++static void __rb_erase_color(struct rb_node * node, struct rb_node * parent,
++ struct rb_root * root)
++{
++ struct rb_node * other;
++
++ while ((!node || node->rb_color == RB_BLACK) && node != root->rb_node)
++ {
++ if (parent->rb_left == node)
++ {
++ other = parent->rb_right;
++ if (other->rb_color == RB_RED)
++ {
++ other->rb_color = RB_BLACK;
++ parent->rb_color = RB_RED;
++ __rb_rotate_left(parent, root);
++ other = parent->rb_right;
++ }
++ if ((!other->rb_left ||
++ other->rb_left->rb_color == RB_BLACK)
++ && (!other->rb_right ||
++ other->rb_right->rb_color == RB_BLACK))
++ {
++ other->rb_color = RB_RED;
++ node = parent;
++ parent = node->rb_parent;
++ }
++ else
++ {
++ if (!other->rb_right ||
++ other->rb_right->rb_color == RB_BLACK)
++ {
++ register struct rb_node * o_left;
++ if ((o_left = other->rb_left))
++ o_left->rb_color = RB_BLACK;
++ other->rb_color = RB_RED;
++ __rb_rotate_right(other, root);
++ other = parent->rb_right;
++ }
++ other->rb_color = parent->rb_color;
++ parent->rb_color = RB_BLACK;
++ if (other->rb_right)
++ other->rb_right->rb_color = RB_BLACK;
++ __rb_rotate_left(parent, root);
++ node = root->rb_node;
++ break;
++ }
++ }
++ else
++ {
++ other = parent->rb_left;
++ if (other->rb_color == RB_RED)
++ {
++ other->rb_color = RB_BLACK;
++ parent->rb_color = RB_RED;
++ __rb_rotate_right(parent, root);
++ other = parent->rb_left;
++ }
++ if ((!other->rb_left ||
++ other->rb_left->rb_color == RB_BLACK)
++ && (!other->rb_right ||
++ other->rb_right->rb_color == RB_BLACK))
++ {
++ other->rb_color = RB_RED;
++ node = parent;
++ parent = node->rb_parent;
++ }
++ else
++ {
++ if (!other->rb_left ||
++ other->rb_left->rb_color == RB_BLACK)
++ {
++ register struct rb_node * o_right;
++ if ((o_right = other->rb_right))
++ o_right->rb_color = RB_BLACK;
++ other->rb_color = RB_RED;
++ __rb_rotate_left(other, root);
++ other = parent->rb_left;
++ }
++ other->rb_color = parent->rb_color;
++ parent->rb_color = RB_BLACK;
++ if (other->rb_left)
++ other->rb_left->rb_color = RB_BLACK;
++ __rb_rotate_right(parent, root);
++ node = root->rb_node;
++ break;
++ }
++ }
++ }
++ if (node)
++ node->rb_color = RB_BLACK;
++}
++
++void rb_erase(struct rb_node * node, struct rb_root * root)
++{
++ struct rb_node * child, * parent;
++ int color;
++
++ if (!node->rb_left)
++ child = node->rb_right;
++ else if (!node->rb_right)
++ child = node->rb_left;
++ else
++ {
++ struct rb_node * old = node, * left;
++
++ node = node->rb_right;
++ while ((left = node->rb_left))
++ node = left;
++ child = node->rb_right;
++ parent = node->rb_parent;
++ color = node->rb_color;
++
++ if (child)
++ child->rb_parent = parent;
++ if (parent)
++ {
++ if (parent->rb_left == node)
++ parent->rb_left = child;
++ else
++ parent->rb_right = child;
++ }
++ else
++ root->rb_node = child;
++
++ if (node->rb_parent == old)
++ parent = node;
++ node->rb_parent = old->rb_parent;
++ node->rb_color = old->rb_color;
++ node->rb_right = old->rb_right;
++ node->rb_left = old->rb_left;
++
++ if (old->rb_parent)
++ {
++ if (old->rb_parent->rb_left == old)
++ old->rb_parent->rb_left = node;
++ else
++ old->rb_parent->rb_right = node;
++ } else
++ root->rb_node = node;
++
++ old->rb_left->rb_parent = node;
++ if (old->rb_right)
++ old->rb_right->rb_parent = node;
++ goto color;
++ }
++
++ parent = node->rb_parent;
++ color = node->rb_color;
++
++ if (child)
++ child->rb_parent = parent;
++ if (parent)
++ {
++ if (parent->rb_left == node)
++ parent->rb_left = child;
++ else
++ parent->rb_right = child;
++ }
++ else
++ root->rb_node = child;
++
++ color:
++ if (color == RB_BLACK)
++ __rb_erase_color(child, parent, root);
++}
++#endif /* Before 2.4.11 */
++
++ /* These routines haven't made it into 2.4 (yet) */
++struct rb_node *rb_next(struct rb_node *node)
++{
++ /* If we have a right-hand child, go down and then left as far
++ as we can. */
++ if (node->rb_right) {
++ node = node->rb_right;
++ while (node->rb_left)
++ node=node->rb_left;
++ return node;
++ }
++
++ /* No right-hand children. Everything down and left is
++ smaller than us, so any 'next' node must be in the general
++ direction of our parent. Go up the tree; any time the
++ ancestor is a right-hand child of its parent, keep going
++ up. First time it's a left-hand child of its parent, said
++ parent is our 'next' node. */
++ while (node->rb_parent && node == node->rb_parent->rb_right)
++ node = node->rb_parent;
++
++ return node->rb_parent;
++}
++
++struct rb_node *rb_prev(struct rb_node *node)
++{
++ if (node->rb_left) {
++ node = node->rb_left;
++ while (node->rb_right)
++ node=node->rb_right;
++ return node;
++ }
++ while (node->rb_parent && node == node->rb_parent->rb_left)
++ node = node->rb_parent;
++
++ return node->rb_parent;
++}
++
++void rb_replace_node(struct rb_node *victim, struct rb_node *new, struct rb_root *root)
++{
++ struct rb_node *parent = victim->rb_parent;
++
++ /* Set the surrounding nodes to point to the replacement */
++ if (parent) {
++ if (victim == parent->rb_left)
++ parent->rb_left = new;
++ else
++ parent->rb_right = new;
++ } else {
++ root->rb_node = new;
++ }
++ if (victim->rb_left)
++ victim->rb_left->rb_parent = new;
++ if (victim->rb_right)
++ victim->rb_right->rb_parent = new;
++
++ /* Copy the pointers/colour from the victim to the replacement */
++ *new = *victim;
++}
+diff -Nurb linux-mips-2.4.27/fs/jffs2/read.c linux/fs/jffs2/read.c
+--- linux-mips-2.4.27/fs/jffs2/read.c 2003-11-17 02:07:44.000000000 +0100
++++ linux/fs/jffs2/read.c 2004-11-19 10:25:12.121166048 +0100
+@@ -1,52 +1,29 @@
+ /*
+ * JFFS2 -- Journalling Flash File System, Version 2.
+ *
+- * Copyright (C) 2001 Red Hat, Inc.
++ * Copyright (C) 2001-2003 Red Hat, Inc.
+ *
+- * Created by David Woodhouse <dwmw2@cambridge.redhat.com>
++ * Created by David Woodhouse <dwmw2@redhat.com>
+ *
+- * The original JFFS, from which the design for JFFS2 was derived,
+- * was designed and implemented by Axis Communications AB.
++ * For licensing information, see the file 'LICENCE' in this directory.
+ *
+- * The contents of this file are subject to the Red Hat eCos Public
+- * License Version 1.1 (the "Licence"); you may not use this file
+- * except in compliance with the Licence. You may obtain a copy of
+- * the Licence at http://www.redhat.com/
+- *
+- * Software distributed under the Licence is distributed on an "AS IS"
+- * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
+- * See the Licence for the specific language governing rights and
+- * limitations under the Licence.
+- *
+- * The Original Code is JFFS2 - Journalling Flash File System, version 2
+- *
+- * Alternatively, the contents of this file may be used under the
+- * terms of the GNU General Public License version 2 (the "GPL"), in
+- * which case the provisions of the GPL are applicable instead of the
+- * above. If you wish to allow the use of your version of this file
+- * only under the terms of the GPL and not to allow others to use your
+- * version of this file under the RHEPL, indicate your decision by
+- * deleting the provisions above and replace them with the notice and
+- * other provisions required by the GPL. If you do not delete the
+- * provisions above, a recipient may use your version of this file
+- * under either the RHEPL or the GPL.
+- *
+- * $Id: read.c,v 1.13.2.2 2003/11/02 13:51:18 dwmw2 Exp $
++ * $Id: read.c,v 1.34 2003/10/04 08:33:06 dwmw2 Exp $
+ *
+ */
+
+ #include <linux/kernel.h>
+ #include <linux/slab.h>
+-#include <linux/jffs2.h>
++#include <linux/crc32.h>
++#include <linux/pagemap.h>
+ #include <linux/mtd/mtd.h>
++#include <linux/compiler.h>
+ #include "nodelist.h"
+-#include <linux/crc32.h>
+
+ int jffs2_read_dnode(struct jffs2_sb_info *c, struct jffs2_full_dnode *fd, unsigned char *buf, int ofs, int len)
+ {
+ struct jffs2_raw_inode *ri;
+ size_t readlen;
+- __u32 crc;
++ uint32_t crc;
+ unsigned char *decomprbuf = NULL;
+ unsigned char *readbuf = NULL;
+ int ret = 0;
+@@ -55,35 +32,41 @@
+ if (!ri)
+ return -ENOMEM;
+
+- ret = c->mtd->read(c->mtd, fd->raw->flash_offset & ~3, sizeof(*ri), &readlen, (char *)ri);
++ ret = jffs2_flash_read(c, ref_offset(fd->raw), sizeof(*ri), &readlen, (char *)ri);
+ if (ret) {
+ jffs2_free_raw_inode(ri);
+- printk(KERN_WARNING "Error reading node from 0x%08x: %d\n", fd->raw->flash_offset & ~3, ret);
++ printk(KERN_WARNING "Error reading node from 0x%08x: %d\n", ref_offset(fd->raw), ret);
+ return ret;
+ }
+ if (readlen != sizeof(*ri)) {
+ jffs2_free_raw_inode(ri);
+- printk(KERN_WARNING "Short read from 0x%08x: wanted 0x%x bytes, got 0x%x\n",
+- fd->raw->flash_offset & ~3, sizeof(*ri), readlen);
++ printk(KERN_WARNING "Short read from 0x%08x: wanted 0x%zx bytes, got 0x%zx\n",
++ ref_offset(fd->raw), sizeof(*ri), readlen);
+ return -EIO;
+ }
+ crc = crc32(0, ri, sizeof(*ri)-8);
+
+- D1(printk(KERN_DEBUG "Node read from %08x: node_crc %08x, calculated CRC %08x. dsize %x, csize %x, offset %x, buf %p\n", fd->raw->flash_offset & ~3, ri->node_crc, crc, ri->dsize, ri->csize, ri->offset, buf));
+- if (crc != ri->node_crc) {
+- printk(KERN_WARNING "Node CRC %08x != calculated CRC %08x for node at %08x\n", ri->node_crc, crc, fd->raw->flash_offset & ~3);
++ D1(printk(KERN_DEBUG "Node read from %08x: node_crc %08x, calculated CRC %08x. dsize %x, csize %x, offset %x, buf %p\n",
++ ref_offset(fd->raw), je32_to_cpu(ri->node_crc),
++ crc, je32_to_cpu(ri->dsize), je32_to_cpu(ri->csize),
++ je32_to_cpu(ri->offset), buf));
++ if (crc != je32_to_cpu(ri->node_crc)) {
++ printk(KERN_WARNING "Node CRC %08x != calculated CRC %08x for node at %08x\n",
++ je32_to_cpu(ri->node_crc), crc, ref_offset(fd->raw));
+ ret = -EIO;
+ goto out_ri;
+ }
+ /* There was a bug where we wrote hole nodes out with csize/dsize
+ swapped. Deal with it */
+- if (ri->compr == JFFS2_COMPR_ZERO && !ri->dsize && ri->csize) {
++ if (ri->compr == JFFS2_COMPR_ZERO && !je32_to_cpu(ri->dsize) &&
++ je32_to_cpu(ri->csize)) {
+ ri->dsize = ri->csize;
+- ri->csize = 0;
++ ri->csize = cpu_to_je32(0);
+ }
+
+- D1(if(ofs + len > ri->dsize) {
+- printk(KERN_WARNING "jffs2_read_dnode() asked for %d bytes at %d from %d-byte node\n", len, ofs, ri->dsize);
++ D1(if(ofs + len > je32_to_cpu(ri->dsize)) {
++ printk(KERN_WARNING "jffs2_read_dnode() asked for %d bytes at %d from %d-byte node\n",
++ len, ofs, je32_to_cpu(ri->dsize));
+ ret = -EINVAL;
+ goto out_ri;
+ });
+@@ -100,18 +83,18 @@
+ Reading partial node and it's uncompressed - read into readbuf, check CRC, and copy
+ Reading partial node and it's compressed - read into readbuf, check checksum, decompress to decomprbuf and copy
+ */
+- if (ri->compr == JFFS2_COMPR_NONE && len == ri->dsize) {
++ if (ri->compr == JFFS2_COMPR_NONE && len == je32_to_cpu(ri->dsize)) {
+ readbuf = buf;
+ } else {
+- readbuf = kmalloc(ri->csize, GFP_KERNEL);
++ readbuf = kmalloc(je32_to_cpu(ri->csize), GFP_KERNEL);
+ if (!readbuf) {
+ ret = -ENOMEM;
+ goto out_ri;
+ }
+ }
+ if (ri->compr != JFFS2_COMPR_NONE) {
+- if (len < ri->dsize) {
+- decomprbuf = kmalloc(ri->dsize, GFP_KERNEL);
++ if (len < je32_to_cpu(ri->dsize)) {
++ decomprbuf = kmalloc(je32_to_cpu(ri->dsize), GFP_KERNEL);
+ if (!decomprbuf) {
+ ret = -ENOMEM;
+ goto out_readbuf;
+@@ -123,31 +106,35 @@
+ decomprbuf = readbuf;
+ }
+
+- D2(printk(KERN_DEBUG "Read %d bytes to %p\n", ri->csize, readbuf));
+- ret = c->mtd->read(c->mtd, (fd->raw->flash_offset &~3) + sizeof(*ri), ri->csize, &readlen, readbuf);
++ D2(printk(KERN_DEBUG "Read %d bytes to %p\n", je32_to_cpu(ri->csize),
++ readbuf));
++ ret = jffs2_flash_read(c, (ref_offset(fd->raw)) + sizeof(*ri),
++ je32_to_cpu(ri->csize), &readlen, readbuf);
+
+- if (!ret && readlen != ri->csize)
++ if (!ret && readlen != je32_to_cpu(ri->csize))
+ ret = -EIO;
+ if (ret)
+ goto out_decomprbuf;
+
+- crc = crc32(0, readbuf, ri->csize);
+- if (crc != ri->data_crc) {
+- printk(KERN_WARNING "Data CRC %08x != calculated CRC %08x for node at %08x\n", ri->data_crc, crc, fd->raw->flash_offset & ~3);
++ crc = crc32(0, readbuf, je32_to_cpu(ri->csize));
++ if (crc != je32_to_cpu(ri->data_crc)) {
++ printk(KERN_WARNING "Data CRC %08x != calculated CRC %08x for node at %08x\n",
++ je32_to_cpu(ri->data_crc), crc, ref_offset(fd->raw));
+ ret = -EIO;
+ goto out_decomprbuf;
+ }
+ D2(printk(KERN_DEBUG "Data CRC matches calculated CRC %08x\n", crc));
+ if (ri->compr != JFFS2_COMPR_NONE) {
+- D2(printk(KERN_DEBUG "Decompress %d bytes from %p to %d bytes at %p\n", ri->csize, readbuf, ri->dsize, decomprbuf));
+- ret = jffs2_decompress(ri->compr, readbuf, decomprbuf, ri->csize, ri->dsize);
++ D2(printk(KERN_DEBUG "Decompress %d bytes from %p to %d bytes at %p\n",
++ je32_to_cpu(ri->csize), readbuf, je32_to_cpu(ri->dsize), decomprbuf));
++ ret = jffs2_decompress(ri->compr, readbuf, decomprbuf, je32_to_cpu(ri->csize), je32_to_cpu(ri->dsize));
+ if (ret) {
+ printk(KERN_WARNING "Error: jffs2_decompress returned %d\n", ret);
+ goto out_decomprbuf;
+ }
+ }
+
+- if (len < ri->dsize) {
++ if (len < je32_to_cpu(ri->dsize)) {
+ memcpy(buf, decomprbuf+ofs, len);
+ }
+ out_decomprbuf:
+@@ -161,3 +148,96 @@
+
+ return ret;
+ }
++
++int jffs2_read_inode_range(struct jffs2_sb_info *c, struct jffs2_inode_info *f,
++ unsigned char *buf, uint32_t offset, uint32_t len)
++{
++ uint32_t end = offset + len;
++ struct jffs2_node_frag *frag;
++ int ret;
++
++ D1(printk(KERN_DEBUG "jffs2_read_inode_range: ino #%u, range 0x%08x-0x%08x\n",
++ f->inocache->ino, offset, offset+len));
++
++ frag = jffs2_lookup_node_frag(&f->fragtree, offset);
++
++ /* XXX FIXME: Where a single physical node actually shows up in two
++ frags, we read it twice. Don't do that. */
++ /* Now we're pointing at the first frag which overlaps our page */
++ while(offset < end) {
++ D2(printk(KERN_DEBUG "jffs2_read_inode_range: offset %d, end %d\n", offset, end));
++ if (unlikely(!frag || frag->ofs > offset)) {
++ uint32_t holesize = end - offset;
++ if (frag) {
++ D1(printk(KERN_NOTICE "Eep. Hole in ino #%u fraglist. frag->ofs = 0x%08x, offset = 0x%08x\n", f->inocache->ino, frag->ofs, offset));
++ holesize = min(holesize, frag->ofs - offset);
++ D1(jffs2_print_frag_list(f));
++ }
++ D1(printk(KERN_DEBUG "Filling non-frag hole from %d-%d\n", offset, offset+holesize));
++ memset(buf, 0, holesize);
++ buf += holesize;
++ offset += holesize;
++ continue;
++ } else if (unlikely(!frag->node)) {
++ uint32_t holeend = min(end, frag->ofs + frag->size);
++ D1(printk(KERN_DEBUG "Filling frag hole from %d-%d (frag 0x%x 0x%x)\n", offset, holeend, frag->ofs, frag->ofs + frag->size));
++ memset(buf, 0, holeend - offset);
++ buf += holeend - offset;
++ offset = holeend;
++ frag = frag_next(frag);
++ continue;
++ } else {
++ uint32_t readlen;
++ uint32_t fragofs; /* offset within the frag to start reading */
++
++ fragofs = offset - frag->ofs;
++ readlen = min(frag->size - fragofs, end - offset);
++ D1(printk(KERN_DEBUG "Reading %d-%d from node at 0x%08x (%d)\n",
++ frag->ofs+fragofs, frag->ofs+fragofs+readlen,
++ ref_offset(frag->node->raw), ref_flags(frag->node->raw)));
++ ret = jffs2_read_dnode(c, frag->node, buf, fragofs + frag->ofs - frag->node->ofs, readlen);
++ D2(printk(KERN_DEBUG "node read done\n"));
++ if (ret) {
++ D1(printk(KERN_DEBUG"jffs2_read_inode_range error %d\n",ret));
++ memset(buf, 0, readlen);
++ return ret;
++ }
++ buf += readlen;
++ offset += readlen;
++ frag = frag_next(frag);
++ D2(printk(KERN_DEBUG "node read was OK. Looping\n"));
++ }
++ }
++ return 0;
++}
++
++/* Core function to read symlink target. */
++char *jffs2_getlink(struct jffs2_sb_info *c, struct jffs2_inode_info *f)
++{
++ char *buf;
++ int ret;
++
++ down(&f->sem);
++
++ if (!f->metadata) {
++ printk(KERN_NOTICE "No metadata for symlink inode #%u\n", f->inocache->ino);
++ up(&f->sem);
++ return ERR_PTR(-EINVAL);
++ }
++ buf = kmalloc(f->metadata->size+1, GFP_USER);
++ if (!buf) {
++ up(&f->sem);
++ return ERR_PTR(-ENOMEM);
++ }
++ buf[f->metadata->size]=0;
++
++ ret = jffs2_read_dnode(c, f->metadata, buf, 0, f->metadata->size);
++
++ up(&f->sem);
++
++ if (ret) {
++ kfree(buf);
++ return ERR_PTR(ret);
++ }
++ return buf;
++}
+diff -Nurb linux-mips-2.4.27/fs/jffs2/readinode.c linux/fs/jffs2/readinode.c
+--- linux-mips-2.4.27/fs/jffs2/readinode.c 2003-11-17 02:07:44.000000000 +0100
++++ linux/fs/jffs2/readinode.c 2004-11-19 10:25:12.123165744 +0100
+@@ -1,79 +1,122 @@
+ /*
+ * JFFS2 -- Journalling Flash File System, Version 2.
+ *
+- * Copyright (C) 2001 Red Hat, Inc.
++ * Copyright (C) 2001-2003 Red Hat, Inc.
+ *
+- * Created by David Woodhouse <dwmw2@cambridge.redhat.com>
++ * Created by David Woodhouse <dwmw2@redhat.com>
+ *
+- * The original JFFS, from which the design for JFFS2 was derived,
+- * was designed and implemented by Axis Communications AB.
++ * For licensing information, see the file 'LICENCE' in this directory.
+ *
+- * The contents of this file are subject to the Red Hat eCos Public
+- * License Version 1.1 (the "Licence"); you may not use this file
+- * except in compliance with the Licence. You may obtain a copy of
+- * the Licence at http://www.redhat.com/
+- *
+- * Software distributed under the Licence is distributed on an "AS IS"
+- * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
+- * See the Licence for the specific language governing rights and
+- * limitations under the Licence.
+- *
+- * The Original Code is JFFS2 - Journalling Flash File System, version 2
+- *
+- * Alternatively, the contents of this file may be used under the
+- * terms of the GNU General Public License version 2 (the "GPL"), in
+- * which case the provisions of the GPL are applicable instead of the
+- * above. If you wish to allow the use of your version of this file
+- * only under the terms of the GPL and not to allow others to use your
+- * version of this file under the RHEPL, indicate your decision by
+- * deleting the provisions above and replace them with the notice and
+- * other provisions required by the GPL. If you do not delete the
+- * provisions above, a recipient may use your version of this file
+- * under either the RHEPL or the GPL.
+- *
+- * $Id: readinode.c,v 1.58.2.8 2003/11/02 13:54:20 dwmw2 Exp $
++ * $Id: readinode.c,v 1.113 2003/11/03 13:20:33 dwmw2 Exp $
+ *
+ */
+
+-/* Given an inode, probably with existing list of fragments, add the new node
+- * to the fragment list.
+- */
+ #include <linux/kernel.h>
+ #include <linux/slab.h>
+ #include <linux/fs.h>
++#include <linux/crc32.h>
++#include <linux/pagemap.h>
+ #include <linux/mtd/mtd.h>
+-#include <linux/jffs2.h>
++#include <linux/compiler.h>
+ #include "nodelist.h"
+-#include <linux/crc32.h>
+
++static int jffs2_add_frag_to_fragtree(struct jffs2_sb_info *c, struct rb_root *list, struct jffs2_node_frag *newfrag);
+
+-D1(void jffs2_print_frag_list(struct jffs2_inode_info *f)
++#if CONFIG_JFFS2_FS_DEBUG >= 1
++static void jffs2_print_fragtree(struct rb_root *list, int permitbug)
+ {
+- struct jffs2_node_frag *this = f->fraglist;
++ struct jffs2_node_frag *this = frag_first(list);
++ uint32_t lastofs = 0;
++ int buggy = 0;
+
+ while(this) {
+ if (this->node)
+- printk(KERN_DEBUG "frag %04x-%04x: 0x%08x on flash (*%p->%p)\n", this->ofs, this->ofs+this->size, this->node->raw->flash_offset &~3, this, this->next);
++ printk(KERN_DEBUG "frag %04x-%04x: 0x%08x(%d) on flash (*%p). left (%p), right (%p), parent (%p)\n",
++ this->ofs, this->ofs+this->size, ref_offset(this->node->raw), ref_flags(this->node->raw),
++ this, frag_left(this), frag_right(this), frag_parent(this));
+ else
+- printk(KERN_DEBUG "frag %04x-%04x: hole (*%p->%p)\n", this->ofs, this->ofs+this->size, this, this->next);
+- this = this->next;
++ printk(KERN_DEBUG "frag %04x-%04x: hole (*%p). left (%p} right (%p), parent (%p)\n", this->ofs,
++ this->ofs+this->size, this, frag_left(this), frag_right(this), frag_parent(this));
++ if (this->ofs != lastofs)
++ buggy = 1;
++ lastofs = this->ofs+this->size;
++ this = frag_next(this);
++ }
++ if (buggy && !permitbug) {
++ printk(KERN_CRIT "Frag tree got a hole in it\n");
++ BUG();
+ }
++}
++
++void jffs2_print_frag_list(struct jffs2_inode_info *f)
++{
++ jffs2_print_fragtree(&f->fragtree, 0);
++
+ if (f->metadata) {
+- printk(KERN_DEBUG "metadata at 0x%08x\n", f->metadata->raw->flash_offset &~3);
++ printk(KERN_DEBUG "metadata at 0x%08x\n", ref_offset(f->metadata->raw));
+ }
+-})
+-
++}
+
+-int jffs2_add_full_dnode_to_inode(struct jffs2_sb_info *c, struct jffs2_inode_info *f, struct jffs2_full_dnode *fn)
++static int jffs2_sanitycheck_fragtree(struct jffs2_inode_info *f)
+ {
+- int ret;
+- D1(printk(KERN_DEBUG "jffs2_add_full_dnode_to_inode(ino #%u, f %p, fn %p)\n", f->inocache->ino, f, fn));
++ struct jffs2_node_frag *frag;
++ int bitched = 0;
+
+- ret = jffs2_add_full_dnode_to_fraglist(c, &f->fraglist, fn);
++ for (frag = frag_first(&f->fragtree); frag; frag = frag_next(frag)) {
+
+- D2(jffs2_print_frag_list(f));
+- return ret;
++ struct jffs2_full_dnode *fn = frag->node;
++ if (!fn || !fn->raw)
++ continue;
++
++ if (ref_flags(fn->raw) == REF_PRISTINE) {
++
++ if (fn->frags > 1) {
++ printk(KERN_WARNING "REF_PRISTINE node at 0x%08x had %d frags. Tell dwmw2\n", ref_offset(fn->raw), fn->frags);
++ bitched = 1;
++ }
++ /* A hole node which isn't multi-page should be garbage-collected
++ and merged anyway, so we just check for the frag size here,
++ rather than mucking around with actually reading the node
++ and checking the compression type, which is the real way
++ to tell a hole node. */
++ if (frag->ofs & (PAGE_CACHE_SIZE-1) && frag_prev(frag) && frag_prev(frag)->size < PAGE_CACHE_SIZE && frag_prev(frag)->node) {
++ printk(KERN_WARNING "REF_PRISTINE node at 0x%08x had a previous non-hole frag in the same page. Tell dwmw2\n",
++ ref_offset(fn->raw));
++ bitched = 1;
++ }
++
++ if ((frag->ofs+frag->size) & (PAGE_CACHE_SIZE-1) && frag_next(frag) && frag_next(frag)->size < PAGE_CACHE_SIZE && frag_next(frag)->node) {
++ printk(KERN_WARNING "REF_PRISTINE node at 0x%08x (%08x-%08x) had a following non-hole frag in the same page. Tell dwmw2\n",
++ ref_offset(fn->raw), frag->ofs, frag->ofs+frag->size);
++ bitched = 1;
++ }
++ }
++ }
++
++ if (bitched) {
++ struct jffs2_node_frag *thisfrag;
++
++ printk(KERN_WARNING "Inode is #%u\n", f->inocache->ino);
++ thisfrag = frag_first(&f->fragtree);
++ while (thisfrag) {
++ if (!thisfrag->node) {
++ printk("Frag @0x%x-0x%x; node-less hole\n",
++ thisfrag->ofs, thisfrag->size + thisfrag->ofs);
++ } else if (!thisfrag->node->raw) {
++ printk("Frag @0x%x-0x%x; raw-less hole\n",
++ thisfrag->ofs, thisfrag->size + thisfrag->ofs);
++ } else {
++ printk("Frag @0x%x-0x%x; raw at 0x%08x(%d) (0x%x-0x%x)\n",
++ thisfrag->ofs, thisfrag->size + thisfrag->ofs,
++ ref_offset(thisfrag->node->raw), ref_flags(thisfrag->node->raw),
++ thisfrag->node->ofs, thisfrag->node->ofs+thisfrag->node->size);
++ }
++ thisfrag = frag_next(thisfrag);
++ }
++ }
++ return bitched;
+ }
++#endif /* D1 */
+
+ static void jffs2_obsolete_node_frag(struct jffs2_sb_info *c, struct jffs2_node_frag *this)
+ {
+@@ -82,42 +125,38 @@
+ if (!this->node->frags) {
+ /* The node has no valid frags left. It's totally obsoleted */
+ D2(printk(KERN_DEBUG "Marking old node @0x%08x (0x%04x-0x%04x) obsolete\n",
+- this->node->raw->flash_offset &~3, this->node->ofs, this->node->ofs+this->node->size));
++ ref_offset(this->node->raw), this->node->ofs, this->node->ofs+this->node->size));
+ jffs2_mark_node_obsolete(c, this->node->raw);
+ jffs2_free_full_dnode(this->node);
+ } else {
+- D2(printk(KERN_DEBUG "Not marking old node @0x%08x (0x%04x-0x%04x) obsolete. frags is %d\n",
+- this->node->raw->flash_offset &~3, this->node->ofs, this->node->ofs+this->node->size,
++ D2(printk(KERN_DEBUG "Marking old node @0x%08x (0x%04x-0x%04x) REF_NORMAL. frags is %d\n",
++ ref_offset(this->node->raw), this->node->ofs, this->node->ofs+this->node->size,
+ this->node->frags));
++ mark_ref_normal(this->node->raw);
+ }
+
+ }
+ jffs2_free_node_frag(this);
+ }
+
+-/* Doesn't set inode->i_size */
+-int jffs2_add_full_dnode_to_fraglist(struct jffs2_sb_info *c, struct jffs2_node_frag **list, struct jffs2_full_dnode *fn)
++/* Given an inode, probably with existing list of fragments, add the new node
++ * to the fragment list.
++ */
++int jffs2_add_full_dnode_to_inode(struct jffs2_sb_info *c, struct jffs2_inode_info *f, struct jffs2_full_dnode *fn)
+ {
++ int ret;
++ struct jffs2_node_frag *newfrag;
+
+- struct jffs2_node_frag *this, **prev, *old;
+- struct jffs2_node_frag *newfrag, *newfrag2;
+- __u32 lastend = 0;
+-
++ D1(printk(KERN_DEBUG "jffs2_add_full_dnode_to_inode(ino #%u, f %p, fn %p)\n", f->inocache->ino, f, fn));
+
+ newfrag = jffs2_alloc_node_frag();
+- if (!newfrag) {
++ if (unlikely(!newfrag))
+ return -ENOMEM;
+- }
+-
+- D2(if (fn->raw)
+- printk(KERN_DEBUG "adding node %04x-%04x @0x%08x on flash, newfrag *%p\n", fn->ofs, fn->ofs+fn->size, fn->raw->flash_offset &~3, newfrag);
+- else
+- printk(KERN_DEBUG "adding hole node %04x-%04x on flash, newfrag *%p\n", fn->ofs, fn->ofs+fn->size, newfrag));
+
+- prev = list;
+- this = *list;
++ D2(printk(KERN_DEBUG "adding node %04x-%04x @0x%08x on flash, newfrag *%p\n",
++ fn->ofs, fn->ofs+fn->size, ref_offset(fn->raw), newfrag));
+
+- if (!fn->size) {
++ if (unlikely(!fn->size)) {
+ jffs2_free_node_frag(newfrag);
+ return 0;
+ }
+@@ -126,176 +165,358 @@
+ newfrag->size = fn->size;
+ newfrag->node = fn;
+ newfrag->node->frags = 1;
+- newfrag->next = (void *)0xdeadbeef;
++
++ ret = jffs2_add_frag_to_fragtree(c, &f->fragtree, newfrag);
++ if (ret)
++ return ret;
++
++ /* If we now share a page with other nodes, mark either previous
++ or next node REF_NORMAL, as appropriate. */
++ if (newfrag->ofs & (PAGE_CACHE_SIZE-1)) {
++ struct jffs2_node_frag *prev = frag_prev(newfrag);
++
++ mark_ref_normal(fn->raw);
++ /* If we don't start at zero there's _always_ a previous */
++ if (prev->node)
++ mark_ref_normal(prev->node->raw);
++ }
++
++ if ((newfrag->ofs+newfrag->size) & (PAGE_CACHE_SIZE-1)) {
++ struct jffs2_node_frag *next = frag_next(newfrag);
++
++ if (next) {
++ mark_ref_normal(fn->raw);
++ if (next->node)
++ mark_ref_normal(next->node->raw);
++ }
++ }
++ D2(if (jffs2_sanitycheck_fragtree(f)) {
++ printk(KERN_WARNING "Just added node %04x-%04x @0x%08x on flash, newfrag *%p\n",
++ fn->ofs, fn->ofs+fn->size, ref_offset(fn->raw), newfrag);
++ return 0;
++ })
++ D2(jffs2_print_frag_list(f));
++ return 0;
++}
++
++/* Doesn't set inode->i_size */
++static int jffs2_add_frag_to_fragtree(struct jffs2_sb_info *c, struct rb_root *list, struct jffs2_node_frag *newfrag)
++{
++ struct jffs2_node_frag *this;
++ uint32_t lastend;
+
+ /* Skip all the nodes which are completed before this one starts */
+- while(this && fn->ofs >= this->ofs+this->size) {
+- lastend = this->ofs + this->size;
++ this = jffs2_lookup_node_frag(list, newfrag->node->ofs);
+
+- D2(printk(KERN_DEBUG "j_a_f_d_t_f: skipping frag 0x%04x-0x%04x; phys 0x%08x (*%p->%p)\n",
+- this->ofs, this->ofs+this->size, this->node?(this->node->raw->flash_offset &~3):0xffffffff, this, this->next));
+- prev = &this->next;
+- this = this->next;
++ if (this) {
++ D2(printk(KERN_DEBUG "j_a_f_d_t_f: Lookup gave frag 0x%04x-0x%04x; phys 0x%08x (*%p)\n",
++ this->ofs, this->ofs+this->size, this->node?(ref_offset(this->node->raw)):0xffffffff, this));
++ lastend = this->ofs + this->size;
++ } else {
++ D2(printk(KERN_DEBUG "j_a_f_d_t_f: Lookup gave no frag\n"));
++ lastend = 0;
+ }
+
+ /* See if we ran off the end of the list */
+- if (!this) {
++ if (lastend <= newfrag->ofs) {
+ /* We did */
+- if (lastend < fn->ofs) {
++
++ /* Check if 'this' node was on the same page as the new node.
++ If so, both 'this' and the new node get marked REF_NORMAL so
++ the GC can take a look.
++ */
++ if ((lastend-1) >> PAGE_CACHE_SHIFT == newfrag->ofs >> PAGE_CACHE_SHIFT) {
++ if (this->node)
++ mark_ref_normal(this->node->raw);
++ mark_ref_normal(newfrag->node->raw);
++ }
++
++ if (lastend < newfrag->node->ofs) {
+ /* ... and we need to put a hole in before the new node */
+ struct jffs2_node_frag *holefrag = jffs2_alloc_node_frag();
+- if (!holefrag)
++ if (!holefrag) {
++ jffs2_free_node_frag(newfrag);
+ return -ENOMEM;
++ }
+ holefrag->ofs = lastend;
+- holefrag->size = fn->ofs - lastend;
+- holefrag->next = NULL;
++ holefrag->size = newfrag->node->ofs - lastend;
+ holefrag->node = NULL;
+- *prev = holefrag;
+- prev = &holefrag->next;
++ if (this) {
++ /* By definition, the 'this' node has no right-hand child,
++ because there are no frags with offset greater than it.
++ So that's where we want to put the hole */
++ D2(printk(KERN_DEBUG "Adding hole frag (%p) on right of node at (%p)\n", holefrag, this));
++ rb_link_node(&holefrag->rb, &this->rb, &this->rb.rb_right);
++ } else {
++ D2(printk(KERN_DEBUG "Adding hole frag (%p) at root of tree\n", holefrag));
++ rb_link_node(&holefrag->rb, NULL, &list->rb_node);
++ }
++ rb_insert_color(&holefrag->rb, list);
++ this = holefrag;
+ }
+- newfrag->next = NULL;
+- *prev = newfrag;
++ if (this) {
++ /* By definition, the 'this' node has no right-hand child,
++ because there are no frags with offset greater than it.
++ So that's where we want to put the hole */
++ D2(printk(KERN_DEBUG "Adding new frag (%p) on right of node at (%p)\n", newfrag, this));
++ rb_link_node(&newfrag->rb, &this->rb, &this->rb.rb_right);
++ } else {
++ D2(printk(KERN_DEBUG "Adding new frag (%p) at root of tree\n", newfrag));
++ rb_link_node(&newfrag->rb, NULL, &list->rb_node);
++ }
++ rb_insert_color(&newfrag->rb, list);
+ return 0;
+ }
+
+- D2(printk(KERN_DEBUG "j_a_f_d_t_f: dealing with frag 0x%04x-0x%04x; phys 0x%08x (*%p->%p)\n",
+- this->ofs, this->ofs+this->size, this->node?(this->node->raw->flash_offset &~3):0xffffffff, this, this->next));
++ D2(printk(KERN_DEBUG "j_a_f_d_t_f: dealing with frag 0x%04x-0x%04x; phys 0x%08x (*%p)\n",
++ this->ofs, this->ofs+this->size, this->node?(ref_offset(this->node->raw)):0xffffffff, this));
+
+- /* OK. 'this' is pointing at the first frag that fn->ofs at least partially obsoletes,
+- * - i.e. fn->ofs < this->ofs+this->size && fn->ofs >= this->ofs
++ /* OK. 'this' is pointing at the first frag that newfrag->ofs at least partially obsoletes,
++ * - i.e. newfrag->ofs < this->ofs+this->size && newfrag->ofs >= this->ofs
+ */
+- if (fn->ofs > this->ofs) {
++ if (newfrag->ofs > this->ofs) {
+ /* This node isn't completely obsoleted. The start of it remains valid */
+- if (this->ofs + this->size > fn->ofs + fn->size) {
++
++ /* Mark the new node and the partially covered node REF_NORMAL -- let
++ the GC take a look at them */
++ mark_ref_normal(newfrag->node->raw);
++ if (this->node)
++ mark_ref_normal(this->node->raw);
++
++ if (this->ofs + this->size > newfrag->ofs + newfrag->size) {
+ /* The new node splits 'this' frag into two */
+- newfrag2 = jffs2_alloc_node_frag();
++ struct jffs2_node_frag *newfrag2 = jffs2_alloc_node_frag();
+ if (!newfrag2) {
+ jffs2_free_node_frag(newfrag);
+ return -ENOMEM;
+ }
+- D1(printk(KERN_DEBUG "split old frag 0x%04x-0x%04x -->", this->ofs, this->ofs+this->size);
++ D2(printk(KERN_DEBUG "split old frag 0x%04x-0x%04x -->", this->ofs, this->ofs+this->size);
+ if (this->node)
+- printk("phys 0x%08x\n", this->node->raw->flash_offset &~3);
++ printk("phys 0x%08x\n", ref_offset(this->node->raw));
+ else
+ printk("hole\n");
+ )
+- newfrag2->ofs = fn->ofs + fn->size;
++
++ /* New second frag pointing to this's node */
++ newfrag2->ofs = newfrag->ofs + newfrag->size;
+ newfrag2->size = (this->ofs+this->size) - newfrag2->ofs;
+- newfrag2->next = this->next;
+ newfrag2->node = this->node;
+ if (this->node)
+ this->node->frags++;
+- newfrag->next = newfrag2;
+- this->next = newfrag;
++
++ /* Adjust size of original 'this' */
+ this->size = newfrag->ofs - this->ofs;
++
++ /* Now, we know there's no node with offset
++ greater than this->ofs but smaller than
++ newfrag2->ofs or newfrag->ofs, for obvious
++ reasons. So we can do a tree insert from
++ 'this' to insert newfrag, and a tree insert
++ from newfrag to insert newfrag2. */
++ jffs2_fragtree_insert(newfrag, this);
++ rb_insert_color(&newfrag->rb, list);
++
++ jffs2_fragtree_insert(newfrag2, newfrag);
++ rb_insert_color(&newfrag2->rb, list);
++
+ return 0;
+ }
+ /* New node just reduces 'this' frag in size, doesn't split it */
+- this->size = fn->ofs - this->ofs;
+- newfrag->next = this->next;
+- this->next = newfrag;
+- this = newfrag->next;
++ this->size = newfrag->ofs - this->ofs;
++
++ /* Again, we know it lives down here in the tree */
++ jffs2_fragtree_insert(newfrag, this);
++ rb_insert_color(&newfrag->rb, list);
+ } else {
+- D2(printk(KERN_DEBUG "Inserting newfrag (*%p) in before 'this' (*%p)\n", newfrag, this));
+- *prev = newfrag;
+- newfrag->next = this;
++ /* New frag starts at the same point as 'this' used to. Replace
++ it in the tree without doing a delete and insertion */
++ D2(printk(KERN_DEBUG "Inserting newfrag (*%p),%d-%d in before 'this' (*%p),%d-%d\n",
++ newfrag, newfrag->ofs, newfrag->ofs+newfrag->size,
++ this, this->ofs, this->ofs+this->size));
++
++ rb_replace_node(&this->rb, &newfrag->rb, list);
++
++ if (newfrag->ofs + newfrag->size >= this->ofs+this->size) {
++ D2(printk(KERN_DEBUG "Obsoleting node frag %p (%x-%x)\n", this, this->ofs, this->ofs+this->size));
++ jffs2_obsolete_node_frag(c, this);
++ } else {
++ this->ofs += newfrag->size;
++ this->size -= newfrag->size;
++
++ jffs2_fragtree_insert(this, newfrag);
++ rb_insert_color(&this->rb, list);
++ return 0;
+ }
+- /* OK, now we have newfrag added in the correct place in the list, but
+- newfrag->next points to a fragment which may be overlapping it
++ }
++ /* OK, now we have newfrag added in the correct place in the tree, but
++ frag_next(newfrag) may be a fragment which is overlapped by it
+ */
+- while (this && newfrag->ofs + newfrag->size >= this->ofs + this->size) {
+- /* 'this' frag is obsoleted. */
+- old = this;
+- this = old->next;
+- jffs2_obsolete_node_frag(c, old);
++ while ((this = frag_next(newfrag)) && newfrag->ofs + newfrag->size >= this->ofs + this->size) {
++ /* 'this' frag is obsoleted completely. */
++ D2(printk(KERN_DEBUG "Obsoleting node frag %p (%x-%x) and removing from tree\n", this, this->ofs, this->ofs+this->size));
++ rb_erase(&this->rb, list);
++ jffs2_obsolete_node_frag(c, this);
+ }
+ /* Now we're pointing at the first frag which isn't totally obsoleted by
+ the new frag */
+- newfrag->next = this;
+
+ if (!this || newfrag->ofs + newfrag->size == this->ofs) {
+ return 0;
+ }
+- /* Still some overlap */
++ /* Still some overlap but we don't need to move it in the tree */
+ this->size = (this->ofs + this->size) - (newfrag->ofs + newfrag->size);
+ this->ofs = newfrag->ofs + newfrag->size;
++
++ /* And mark them REF_NORMAL so the GC takes a look at them */
++ if (this->node)
++ mark_ref_normal(this->node->raw);
++ mark_ref_normal(newfrag->node->raw);
++
+ return 0;
+ }
+
+-void jffs2_truncate_fraglist (struct jffs2_sb_info *c, struct jffs2_node_frag **list, __u32 size)
++void jffs2_truncate_fraglist (struct jffs2_sb_info *c, struct rb_root *list, uint32_t size)
+ {
++ struct jffs2_node_frag *frag = jffs2_lookup_node_frag(list, size);
++
+ D1(printk(KERN_DEBUG "Truncating fraglist to 0x%08x bytes\n", size));
+
+- while (*list) {
+- if ((*list)->ofs >= size) {
+- struct jffs2_node_frag *this = *list;
+- *list = this->next;
+- D1(printk(KERN_DEBUG "Removing frag 0x%08x-0x%08x\n", this->ofs, this->ofs+this->size));
+- jffs2_obsolete_node_frag(c, this);
+- continue;
+- } else if ((*list)->ofs + (*list)->size > size) {
+- D1(printk(KERN_DEBUG "Truncating frag 0x%08x-0x%08x\n", (*list)->ofs, (*list)->ofs + (*list)->size));
+- (*list)->size = size - (*list)->ofs;
+- }
+- list = &(*list)->next;
++ /* We know frag->ofs <= size. That's what lookup does for us */
++ if (frag && frag->ofs != size) {
++ if (frag->ofs+frag->size >= size) {
++ D1(printk(KERN_DEBUG "Truncating frag 0x%08x-0x%08x\n", frag->ofs, frag->ofs+frag->size));
++ frag->size = size - frag->ofs;
++ }
++ frag = frag_next(frag);
++ }
++ while (frag && frag->ofs >= size) {
++ struct jffs2_node_frag *next = frag_next(frag);
++
++ D1(printk(KERN_DEBUG "Removing frag 0x%08x-0x%08x\n", frag->ofs, frag->ofs+frag->size));
++ frag_erase(frag, list);
++ jffs2_obsolete_node_frag(c, frag);
++ frag = next;
+ }
+ }
+
+ /* Scan the list of all nodes present for this ino, build map of versions, etc. */
+
+-void jffs2_read_inode (struct inode *inode)
++static int jffs2_do_read_inode_internal(struct jffs2_sb_info *c,
++ struct jffs2_inode_info *f,
++ struct jffs2_raw_inode *latest_node);
++
++int jffs2_do_read_inode(struct jffs2_sb_info *c, struct jffs2_inode_info *f,
++ uint32_t ino, struct jffs2_raw_inode *latest_node)
+ {
+- struct jffs2_tmp_dnode_info *tn_list, *tn;
+- struct jffs2_full_dirent *fd_list;
+- struct jffs2_inode_info *f;
+- struct jffs2_full_dnode *fn = NULL;
+- struct jffs2_sb_info *c;
+- struct jffs2_raw_inode latest_node;
+- __u32 latest_mctime, mctime_ver;
+- __u32 mdata_ver = 0;
+- int ret;
+- ssize_t retlen;
++ D2(printk(KERN_DEBUG "jffs2_do_read_inode(): getting inocache\n"));
+
+- D1(printk(KERN_DEBUG "jffs2_read_inode(): inode->i_ino == %lu\n", inode->i_ino));
++ retry_inocache:
++ spin_lock(&c->inocache_lock);
++ f->inocache = jffs2_get_ino_cache(c, ino);
++
++ D2(printk(KERN_DEBUG "jffs2_do_read_inode(): Got inocache at %p\n", f->inocache));
++
++ if (f->inocache) {
++ /* Check its state. We may need to wait before we can use it */
++ switch(f->inocache->state) {
++ case INO_STATE_UNCHECKED:
++ case INO_STATE_CHECKEDABSENT:
++ f->inocache->state = INO_STATE_READING;
++ break;
+
+- f = JFFS2_INODE_INFO(inode);
+- c = JFFS2_SB_INFO(inode->i_sb);
++ case INO_STATE_CHECKING:
++ case INO_STATE_GC:
++ /* If it's in either of these states, we need
++ to wait for whoever's got it to finish and
++ put it back. */
++ D1(printk(KERN_DEBUG "jffs2_get_ino_cache_read waiting for ino #%u in state %d\n",
++ ino, f->inocache->state));
++ sleep_on_spinunlock(&c->inocache_wq, &c->inocache_lock);
++ goto retry_inocache;
++
++ case INO_STATE_READING:
++ case INO_STATE_PRESENT:
++ /* Eep. This should never happen. It can
++ happen if Linux calls read_inode() again
++ before clear_inode() has finished though. */
++ printk(KERN_WARNING "Eep. Trying to read_inode #%u when it's already in state %d!\n", ino, f->inocache->state);
++ /* Fail. That's probably better than allowing it to succeed */
++ f->inocache = NULL;
++ break;
+
+- memset(f, 0, sizeof(*f));
+- D2(printk(KERN_DEBUG "getting inocache\n"));
+- init_MUTEX(&f->sem);
+- f->inocache = jffs2_get_ino_cache(c, inode->i_ino);
+- D2(printk(KERN_DEBUG "jffs2_read_inode(): Got inocache at %p\n", f->inocache));
++ default:
++ BUG();
++ }
++ }
++ spin_unlock(&c->inocache_lock);
+
+- if (!f->inocache && inode->i_ino == 1) {
++ if (!f->inocache && ino == 1) {
+ /* Special case - no root inode on medium */
+ f->inocache = jffs2_alloc_inode_cache();
+ if (!f->inocache) {
+- printk(KERN_CRIT "jffs2_read_inode(): Cannot allocate inocache for root inode\n");
+- make_bad_inode(inode);
+- return;
++ printk(KERN_CRIT "jffs2_do_read_inode(): Cannot allocate inocache for root inode\n");
++ return -ENOMEM;
+ }
+- D1(printk(KERN_DEBUG "jffs2_read_inode(): Creating inocache for root inode\n"));
++ D1(printk(KERN_DEBUG "jffs2_do_read_inode(): Creating inocache for root inode\n"));
+ memset(f->inocache, 0, sizeof(struct jffs2_inode_cache));
+ f->inocache->ino = f->inocache->nlink = 1;
+ f->inocache->nodes = (struct jffs2_raw_node_ref *)f->inocache;
++ f->inocache->state = INO_STATE_READING;
+ jffs2_add_ino_cache(c, f->inocache);
+ }
+ if (!f->inocache) {
+- printk(KERN_WARNING "jffs2_read_inode() on nonexistent ino %lu\n", (unsigned long)inode->i_ino);
+- make_bad_inode(inode);
+- return;
++ printk(KERN_WARNING "jffs2_do_read_inode() on nonexistent ino %u\n", ino);
++ return -ENOENT;
+ }
+- D1(printk(KERN_DEBUG "jffs2_read_inode(): ino #%lu nlink is %d\n", (unsigned long)inode->i_ino, f->inocache->nlink));
+- inode->i_nlink = f->inocache->nlink;
++
++ return jffs2_do_read_inode_internal(c, f, latest_node);
++}
++
++int jffs2_do_crccheck_inode(struct jffs2_sb_info *c, struct jffs2_inode_cache *ic)
++{
++ struct jffs2_raw_inode n;
++ struct jffs2_inode_info *f = kmalloc(sizeof(*f), GFP_KERNEL);
++ int ret;
++
++ if (!f)
++ return -ENOMEM;
++
++ memset(f, 0, sizeof(*f));
++ init_MUTEX_LOCKED(&f->sem);
++ f->inocache = ic;
++
++ ret = jffs2_do_read_inode_internal(c, f, &n);
++ if (!ret) {
++ up(&f->sem);
++ jffs2_do_clear_inode(c, f);
++ }
++ kfree (f);
++ return ret;
++}
++
++static int jffs2_do_read_inode_internal(struct jffs2_sb_info *c,
++ struct jffs2_inode_info *f,
++ struct jffs2_raw_inode *latest_node)
++{
++ struct jffs2_tmp_dnode_info *tn_list, *tn;
++ struct jffs2_full_dirent *fd_list;
++ struct jffs2_full_dnode *fn = NULL;
++ uint32_t crc;
++ uint32_t latest_mctime, mctime_ver;
++ uint32_t mdata_ver = 0;
++ size_t retlen;
++ int ret;
++
++ D1(printk(KERN_DEBUG "jffs2_do_read_inode_internal(): ino #%u nlink is %d\n", f->inocache->ino, f->inocache->nlink));
+
+ /* Grab all nodes relevant to this ino */
+- ret = jffs2_get_inode_nodes(c, inode->i_ino, f, &tn_list, &fd_list, &f->highest_version, &latest_mctime, &mctime_ver);
++ ret = jffs2_get_inode_nodes(c, f->inocache->ino, f, &tn_list, &fd_list, &f->highest_version, &latest_mctime, &mctime_ver);
+
+ if (ret) {
+- printk(KERN_CRIT "jffs2_get_inode_nodes() for ino %lu returned %d\n", inode->i_ino, ret);
+- make_bad_inode(inode);
+- return;
++ printk(KERN_CRIT "jffs2_get_inode_nodes() for ino %u returned %d\n", f->inocache->ino, ret);
++ if (f->inocache->state == INO_STATE_READING)
++ jffs2_set_inocache_state(c, f->inocache, INO_STATE_CHECKEDABSENT);
++ return ret;
+ }
+ f->dents = fd_list;
+
+@@ -304,205 +525,169 @@
+
+ fn = tn->fn;
+
+- if (f->metadata && tn->version > mdata_ver) {
+- D1(printk(KERN_DEBUG "Obsoleting old metadata at 0x%08x\n", f->metadata->raw->flash_offset &~3));
++ if (f->metadata) {
++ if (likely(tn->version >= mdata_ver)) {
++ D1(printk(KERN_DEBUG "Obsoleting old metadata at 0x%08x\n", ref_offset(f->metadata->raw)));
+ jffs2_mark_node_obsolete(c, f->metadata->raw);
+ jffs2_free_full_dnode(f->metadata);
+ f->metadata = NULL;
+
+ mdata_ver = 0;
++ } else {
++ /* This should never happen. */
++ printk(KERN_WARNING "Er. New metadata at 0x%08x with ver %d is actually older than previous ver %d at 0x%08x\n",
++ ref_offset(fn->raw), tn->version, mdata_ver, ref_offset(f->metadata->raw));
++ jffs2_mark_node_obsolete(c, fn->raw);
++ jffs2_free_full_dnode(fn);
++ /* Fill in latest_node from the metadata, not this one we're about to free... */
++ fn = f->metadata;
++ goto next_tn;
++ }
+ }
+
+ if (fn->size) {
+ jffs2_add_full_dnode_to_inode(c, f, fn);
+ } else {
+ /* Zero-sized node at end of version list. Just a metadata update */
+- D1(printk(KERN_DEBUG "metadata @%08x: ver %d\n", fn->raw->flash_offset &~3, tn->version));
++ D1(printk(KERN_DEBUG "metadata @%08x: ver %d\n", ref_offset(fn->raw), tn->version));
+ f->metadata = fn;
+ mdata_ver = tn->version;
+ }
++ next_tn:
+ tn_list = tn->next;
+ jffs2_free_tmp_dnode_info(tn);
+ }
++ D1(jffs2_sanitycheck_fragtree(f));
++
+ if (!fn) {
+ /* No data nodes for this inode. */
+- if (inode->i_ino != 1) {
+- printk(KERN_WARNING "jffs2_read_inode(): No data nodes found for ino #%lu\n", inode->i_ino);
++ if (f->inocache->ino != 1) {
++ printk(KERN_WARNING "jffs2_do_read_inode(): No data nodes found for ino #%u\n", f->inocache->ino);
+ if (!fd_list) {
+- make_bad_inode(inode);
+- return;
+- }
+- printk(KERN_WARNING "jffs2_read_inode(): But it has children so we fake some modes for it\n");
++ if (f->inocache->state == INO_STATE_READING)
++ jffs2_set_inocache_state(c, f->inocache, INO_STATE_CHECKEDABSENT);
++ return -EIO;
++ }
++ printk(KERN_WARNING "jffs2_do_read_inode(): But it has children so we fake some modes for it\n");
++ }
++ latest_node->mode = cpu_to_jemode(S_IFDIR|S_IRUGO|S_IWUSR|S_IXUGO);
++ latest_node->version = cpu_to_je32(0);
++ latest_node->atime = latest_node->ctime = latest_node->mtime = cpu_to_je32(0);
++ latest_node->isize = cpu_to_je32(0);
++ latest_node->gid = cpu_to_je16(0);
++ latest_node->uid = cpu_to_je16(0);
++ if (f->inocache->state == INO_STATE_READING)
++ jffs2_set_inocache_state(c, f->inocache, INO_STATE_PRESENT);
++ return 0;
+ }
+- inode->i_mode = S_IFDIR | S_IRUGO | S_IWUSR | S_IXUGO;
+- latest_node.version = 0;
+- inode->i_atime = inode->i_ctime = inode->i_mtime = CURRENT_TIME;
+- inode->i_nlink = f->inocache->nlink;
+- inode->i_size = 0;
+- } else {
+- __u32 crc;
+
+- ret = c->mtd->read(c->mtd, fn->raw->flash_offset & ~3, sizeof(latest_node), &retlen, (void *)&latest_node);
+- if (ret || retlen != sizeof(latest_node)) {
+- printk(KERN_NOTICE "MTD read in jffs2_read_inode() failed: Returned %d, %ld of %d bytes read\n",
+- ret, (long)retlen, sizeof(latest_node));
+- jffs2_clear_inode(inode);
+- make_bad_inode(inode);
+- return;
+- }
+-
+- crc = crc32(0, &latest_node, sizeof(latest_node)-8);
+- if (crc != latest_node.node_crc) {
+- printk(KERN_NOTICE "CRC failed for read_inode of inode %ld at physical location 0x%x\n", inode->i_ino, fn->raw->flash_offset & ~3);
+- jffs2_clear_inode(inode);
+- make_bad_inode(inode);
+- return;
+- }
+-
+- inode->i_mode = latest_node.mode;
+- inode->i_uid = latest_node.uid;
+- inode->i_gid = latest_node.gid;
+- inode->i_size = latest_node.isize;
+- if (S_ISREG(inode->i_mode))
+- jffs2_truncate_fraglist(c, &f->fraglist, latest_node.isize);
+- inode->i_atime = latest_node.atime;
+- inode->i_mtime = latest_node.mtime;
+- inode->i_ctime = latest_node.ctime;
+- }
+-
+- /* OK, now the special cases. Certain inode types should
+- have only one data node, and it's kept as the metadata
+- node */
+- if (S_ISBLK(inode->i_mode) || S_ISCHR(inode->i_mode) ||
+- S_ISLNK(inode->i_mode)) {
+- if (f->metadata) {
+- printk(KERN_WARNING "Argh. Special inode #%lu with mode 0%o had metadata node\n", inode->i_ino, inode->i_mode);
+- jffs2_clear_inode(inode);
+- make_bad_inode(inode);
+- return;
+- }
+- if (!f->fraglist) {
+- printk(KERN_WARNING "Argh. Special inode #%lu with mode 0%o has no fragments\n", inode->i_ino, inode->i_mode);
+- jffs2_clear_inode(inode);
+- make_bad_inode(inode);
+- return;
+- }
+- /* ASSERT: f->fraglist != NULL */
+- if (f->fraglist->next) {
+- printk(KERN_WARNING "Argh. Special inode #%lu with mode 0%o had more than one node\n", inode->i_ino, inode->i_mode);
+- /* FIXME: Deal with it - check crc32, check for duplicate node, check times and discard the older one */
+- jffs2_clear_inode(inode);
+- make_bad_inode(inode);
+- return;
+- }
+- /* OK. We're happy */
+- f->metadata = f->fraglist->node;
+- jffs2_free_node_frag(f->fraglist);
+- f->fraglist = NULL;
++ ret = jffs2_flash_read(c, ref_offset(fn->raw), sizeof(*latest_node), &retlen, (void *)latest_node);
++ if (ret || retlen != sizeof(*latest_node)) {
++ printk(KERN_NOTICE "MTD read in jffs2_do_read_inode() failed: Returned %d, %zd of %zd bytes read\n",
++ ret, retlen, sizeof(*latest_node));
++ /* FIXME: If this fails, there seems to be a memory leak. Find it. */
++ up(&f->sem);
++ jffs2_do_clear_inode(c, f);
++ return ret?ret:-EIO;
+ }
+
+- inode->i_blksize = PAGE_SIZE;
+- inode->i_blocks = (inode->i_size + 511) >> 9;
+-
+- switch (inode->i_mode & S_IFMT) {
+- unsigned short rdev;
+-
+- case S_IFLNK:
+- inode->i_op = &jffs2_symlink_inode_operations;
+- /* Hack to work around broken isize in old symlink code.
+- Remove this when dwmw2 comes to his senses and stops
+- symlinks from being an entirely gratuitous special
+- case. */
+- if (!inode->i_size)
+- inode->i_size = latest_node.dsize;
+- break;
++ crc = crc32(0, latest_node, sizeof(*latest_node)-8);
++ if (crc != je32_to_cpu(latest_node->node_crc)) {
++ printk(KERN_NOTICE "CRC failed for read_inode of inode %u at physical location 0x%x\n", f->inocache->ino, ref_offset(fn->raw));
++ up(&f->sem);
++ jffs2_do_clear_inode(c, f);
++ return -EIO;
++ }
+
++ switch(jemode_to_cpu(latest_node->mode) & S_IFMT) {
+ case S_IFDIR:
+- if (mctime_ver > latest_node.version) {
++ if (mctime_ver > je32_to_cpu(latest_node->version)) {
+ /* The times in the latest_node are actually older than
+ mctime in the latest dirent. Cheat. */
+- inode->i_mtime = inode->i_ctime = inode->i_atime =
+- latest_mctime;
++ latest_node->ctime = latest_node->mtime = cpu_to_je32(latest_mctime);
+ }
+- inode->i_op = &jffs2_dir_inode_operations;
+- inode->i_fop = &jffs2_dir_operations;
+ break;
+
++
+ case S_IFREG:
+- inode->i_op = &jffs2_file_inode_operations;
+- inode->i_fop = &jffs2_file_operations;
+- inode->i_mapping->a_ops = &jffs2_file_address_operations;
+- inode->i_mapping->nrpages = 0;
++ /* If it was a regular file, truncate it to the latest node's isize */
++ jffs2_truncate_fraglist(c, &f->fragtree, je32_to_cpu(latest_node->isize));
+ break;
+
++ case S_IFLNK:
++ /* Hack to work around broken isize in old symlink code.
++ Remove this when dwmw2 comes to his senses and stops
++ symlinks from being an entirely gratuitous special
++ case. */
++ if (!je32_to_cpu(latest_node->isize))
++ latest_node->isize = latest_node->dsize;
++ /* fall through... */
++
+ case S_IFBLK:
+ case S_IFCHR:
+- /* Read the device numbers from the media */
+- D1(printk(KERN_DEBUG "Reading device numbers from flash\n"));
+- if (jffs2_read_dnode(c, f->metadata, (char *)&rdev, 0, sizeof(rdev)) < 0) {
+- /* Eep */
+- printk(KERN_NOTICE "Read device numbers for inode %lu failed\n", (unsigned long)inode->i_ino);
+- jffs2_clear_inode(inode);
+- make_bad_inode(inode);
+- return;
++ /* Certain inode types should have only one data node, and it's
++ kept as the metadata node */
++ if (f->metadata) {
++ printk(KERN_WARNING "Argh. Special inode #%u with mode 0%o had metadata node\n",
++ f->inocache->ino, jemode_to_cpu(latest_node->mode));
++ up(&f->sem);
++ jffs2_do_clear_inode(c, f);
++ return -EIO;
+ }
+-
+- case S_IFSOCK:
+- case S_IFIFO:
+- inode->i_op = &jffs2_file_inode_operations;
+- init_special_inode(inode, inode->i_mode, kdev_t_to_nr(MKDEV(rdev>>8, rdev&0xff)));
++ if (!frag_first(&f->fragtree)) {
++ printk(KERN_WARNING "Argh. Special inode #%u with mode 0%o has no fragments\n",
++ f->inocache->ino, jemode_to_cpu(latest_node->mode));
++ up(&f->sem);
++ jffs2_do_clear_inode(c, f);
++ return -EIO;
++ }
++ /* ASSERT: f->fraglist != NULL */
++ if (frag_next(frag_first(&f->fragtree))) {
++ printk(KERN_WARNING "Argh. Special inode #%u with mode 0x%x had more than one node\n",
++ f->inocache->ino, jemode_to_cpu(latest_node->mode));
++ /* FIXME: Deal with it - check crc32, check for duplicate node, check times and discard the older one */
++ up(&f->sem);
++ jffs2_do_clear_inode(c, f);
++ return -EIO;
++ }
++ /* OK. We're happy */
++ f->metadata = frag_first(&f->fragtree)->node;
++ jffs2_free_node_frag(frag_first(&f->fragtree));
++ f->fragtree = RB_ROOT;
+ break;
+-
+- default:
+- printk(KERN_WARNING "jffs2_read_inode(): Bogus imode %o for ino %lu", inode->i_mode, (unsigned long)inode->i_ino);
+ }
+- D1(printk(KERN_DEBUG "jffs2_read_inode() returning\n"));
++ if (f->inocache->state == INO_STATE_READING)
++ jffs2_set_inocache_state(c, f->inocache, INO_STATE_PRESENT);
++
++ return 0;
+ }
+
+-void jffs2_clear_inode (struct inode *inode)
++void jffs2_do_clear_inode(struct jffs2_sb_info *c, struct jffs2_inode_info *f)
+ {
+- /* We can forget about this inode for now - drop all
+- * the nodelists associated with it, etc.
+- */
+- struct jffs2_sb_info *c = JFFS2_SB_INFO(inode->i_sb);
+- struct jffs2_node_frag *frag, *frags;
+ struct jffs2_full_dirent *fd, *fds;
+- struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode);
+ int deleted;
+
+- D1(printk(KERN_DEBUG "jffs2_clear_inode(): ino #%lu mode %o\n", inode->i_ino, inode->i_mode));
+-
+ down(&f->sem);
+ deleted = f->inocache && !f->inocache->nlink;
+
+- frags = f->fraglist;
+- fds = f->dents;
+ if (f->metadata) {
+ if (deleted)
+ jffs2_mark_node_obsolete(c, f->metadata->raw);
+ jffs2_free_full_dnode(f->metadata);
+ }
+
+- while (frags) {
+- frag = frags;
+- frags = frag->next;
+- D2(printk(KERN_DEBUG "jffs2_clear_inode: frag at 0x%x-0x%x: node %p, frags %d--\n", frag->ofs, frag->ofs+frag->size, frag->node, frag->node?frag->node->frags:0));
++ jffs2_kill_fragtree(&f->fragtree, deleted?c:NULL);
+
+- if (frag->node && !(--frag->node->frags)) {
+- /* Not a hole, and it's the final remaining frag of this node. Free the node */
+- if (deleted)
+- jffs2_mark_node_obsolete(c, frag->node->raw);
++ fds = f->dents;
+
+- jffs2_free_full_dnode(frag->node);
+- }
+- jffs2_free_node_frag(frag);
+- }
+ while(fds) {
+ fd = fds;
+ fds = fd->next;
+ jffs2_free_full_dirent(fd);
+ }
+
+- up(&f->sem);
+-};
++ if (f->inocache && f->inocache->state != INO_STATE_CHECKING)
++ jffs2_set_inocache_state(c, f->inocache, INO_STATE_CHECKEDABSENT);
+
++ up(&f->sem);
++}
+diff -Nurb linux-mips-2.4.27/fs/jffs2/scan.c linux/fs/jffs2/scan.c
+--- linux-mips-2.4.27/fs/jffs2/scan.c 2003-11-17 02:07:44.000000000 +0100
++++ linux/fs/jffs2/scan.c 2004-11-19 10:25:12.124165592 +0100
+@@ -1,47 +1,25 @@
+ /*
+ * JFFS2 -- Journalling Flash File System, Version 2.
+ *
+- * Copyright (C) 2001 Red Hat, Inc.
++ * Copyright (C) 2001-2003 Red Hat, Inc.
+ *
+- * Created by David Woodhouse <dwmw2@cambridge.redhat.com>
++ * Created by David Woodhouse <dwmw2@redhat.com>
+ *
+- * The original JFFS, from which the design for JFFS2 was derived,
+- * was designed and implemented by Axis Communications AB.
++ * For licensing information, see the file 'LICENCE' in this directory.
+ *
+- * The contents of this file are subject to the Red Hat eCos Public
+- * License Version 1.1 (the "Licence"); you may not use this file
+- * except in compliance with the Licence. You may obtain a copy of
+- * the Licence at http://www.redhat.com/
+- *
+- * Software distributed under the Licence is distributed on an "AS IS"
+- * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
+- * See the Licence for the specific language governing rights and
+- * limitations under the Licence.
+- *
+- * The Original Code is JFFS2 - Journalling Flash File System, version 2
+- *
+- * Alternatively, the contents of this file may be used under the
+- * terms of the GNU General Public License version 2 (the "GPL"), in
+- * which case the provisions of the GPL are applicable instead of the
+- * above. If you wish to allow the use of your version of this file
+- * only under the terms of the GPL and not to allow others to use your
+- * version of this file under the RHEPL, indicate your decision by
+- * deleting the provisions above and replace them with the notice and
+- * other provisions required by the GPL. If you do not delete the
+- * provisions above, a recipient may use your version of this file
+- * under either the RHEPL or the GPL.
+- *
+- * $Id: scan.c,v 1.51.2.4 2003/11/02 13:51:18 dwmw2 Exp $
++ * $Id: scan.c,v 1.106 2003/10/28 17:01:13 dwmw2 Exp $
+ *
+ */
+ #include <linux/kernel.h>
++#include <linux/sched.h>
+ #include <linux/slab.h>
+-#include <linux/jffs2.h>
+ #include <linux/mtd/mtd.h>
+ #include <linux/pagemap.h>
+-#include "nodelist.h"
+ #include <linux/crc32.h>
++#include <linux/compiler.h>
++#include "nodelist.h"
+
++#define EMPTY_SCAN_SIZE 1024
+
+ #define DIRTY_SPACE(x) do { typeof(x) _x = (x); \
+ c->free_size -= _x; c->dirty_size += _x; \
+@@ -51,6 +29,10 @@
+ c->free_size -= _x; c->used_size += _x; \
+ jeb->free_size -= _x ; jeb->used_size += _x; \
+ }while(0)
++#define UNCHECKED_SPACE(x) do { typeof(x) _x = (x); \
++ c->free_size -= _x; c->unchecked_size += _x; \
++ jeb->free_size -= _x ; jeb->unchecked_size += _x; \
++ }while(0)
+
+ #define noisy_printk(noise, args...) do { \
+ if (*(noise)) { \
+@@ -63,39 +45,84 @@
+ } while(0)
+
+ static uint32_t pseudo_random;
+-static void jffs2_rotate_lists(struct jffs2_sb_info *c);
+
+-static int jffs2_scan_eraseblock (struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb);
++static int jffs2_scan_eraseblock (struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb,
++ unsigned char *buf, uint32_t buf_size);
+
+ /* These helper functions _must_ increase ofs and also do the dirty/used space accounting.
+ * Returning an error will abort the mount - bad checksums etc. should just mark the space
+ * as dirty.
+ */
+-static int jffs2_scan_empty(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb, __u32 *ofs, int *noise);
+-static int jffs2_scan_inode_node(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb, __u32 *ofs);
+-static int jffs2_scan_dirent_node(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb, __u32 *ofs);
++static int jffs2_scan_inode_node(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb,
++ struct jffs2_raw_inode *ri, uint32_t ofs);
++static int jffs2_scan_dirent_node(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb,
++ struct jffs2_raw_dirent *rd, uint32_t ofs);
++
++#define BLK_STATE_ALLFF 0
++#define BLK_STATE_CLEAN 1
++#define BLK_STATE_PARTDIRTY 2
++#define BLK_STATE_CLEANMARKER 3
++#define BLK_STATE_ALLDIRTY 4
++#define BLK_STATE_BADBLOCK 5
+
++static inline int min_free(struct jffs2_sb_info *c)
++{
++ uint32_t min = 2 * sizeof(struct jffs2_raw_inode);
++#ifdef CONFIG_JFFS2_FS_NAND
++ if (!jffs2_can_mark_obsolete(c) && min < c->wbuf_pagesize)
++ return c->wbuf_pagesize;
++#endif
++ return min;
+
++}
+ int jffs2_scan_medium(struct jffs2_sb_info *c)
+ {
+ int i, ret;
+- __u32 empty_blocks = 0;
+-
+- if (!c->blocks) {
+- printk(KERN_WARNING "EEEK! c->blocks is NULL!\n");
+- return -EINVAL;
++ uint32_t empty_blocks = 0, bad_blocks = 0;
++ unsigned char *flashbuf = NULL;
++ uint32_t buf_size = 0;
++#ifndef __ECOS
++ size_t pointlen;
++
++ if (c->mtd->point) {
++ ret = c->mtd->point (c->mtd, 0, c->mtd->size, &pointlen, &flashbuf);
++ if (!ret && pointlen < c->mtd->size) {
++ /* Don't muck about if it won't let us point to the whole flash */
++ D1(printk(KERN_DEBUG "MTD point returned len too short: 0x%zx\n", pointlen));
++ c->mtd->unpoint(c->mtd, flashbuf, 0, c->mtd->size);
++ flashbuf = NULL;
++ }
++ if (ret)
++ D1(printk(KERN_DEBUG "MTD point failed %d\n", ret));
++ }
++#endif
++ if (!flashbuf) {
++ /* For NAND it's quicker to read a whole eraseblock at a time,
++ apparently */
++ if (jffs2_cleanmarker_oob(c))
++ buf_size = c->sector_size;
++ else
++ buf_size = PAGE_SIZE;
++
++ D1(printk(KERN_DEBUG "Allocating readbuf of %d bytes\n", buf_size));
++ flashbuf = kmalloc(buf_size, GFP_KERNEL);
++ if (!flashbuf)
++ return -ENOMEM;
+ }
++
+ for (i=0; i<c->nr_blocks; i++) {
+ struct jffs2_eraseblock *jeb = &c->blocks[i];
+
+- ret = jffs2_scan_eraseblock(c, jeb);
++ ret = jffs2_scan_eraseblock(c, jeb, buf_size?flashbuf:(flashbuf+jeb->offset), buf_size);
++
+ if (ret < 0)
+- return ret;
++ goto out;
+
+ ACCT_PARANOIA_CHECK(jeb);
+
+ /* Now decide which list to put it on */
+- if (ret == 1) {
++ switch(ret) {
++ case BLK_STATE_ALLFF:
+ /*
+ * Empty block. Since we can't be sure it
+ * was entirely erased, we just queue it for erase
+@@ -103,10 +130,12 @@
+ * is complete. Meanwhile we still count it as empty
+ * for later checks.
+ */
+- list_add(&jeb->list, &c->erase_pending_list);
+ empty_blocks++;
++ list_add(&jeb->list, &c->erase_pending_list);
+ c->nr_erasing_blocks++;
+- } else if (jeb->used_size == PAD(sizeof(struct jffs2_unknown_node)) && !jeb->first_node->next_in_ino) {
++ break;
++
++ case BLK_STATE_CLEANMARKER:
+ /* Only a CLEANMARKER node is valid */
+ if (!jeb->dirty_size) {
+ /* It's actually free */
+@@ -118,74 +147,227 @@
+ list_add(&jeb->list, &c->erase_pending_list);
+ c->nr_erasing_blocks++;
+ }
+- } else if (jeb->used_size > c->sector_size - (2*sizeof(struct jffs2_raw_inode))) {
++ break;
++
++ case BLK_STATE_CLEAN:
+ /* Full (or almost full) of clean data. Clean list */
+ list_add(&jeb->list, &c->clean_list);
+- } else if (jeb->used_size) {
++ break;
++
++ case BLK_STATE_PARTDIRTY:
+ /* Some data, but not full. Dirty list. */
+ /* Except that we want to remember the block with most free space,
+ and stick it in the 'nextblock' position to start writing to it.
+ Later when we do snapshots, this must be the most recent block,
+ not the one with most free space.
+ */
+- if (jeb->free_size > 2*sizeof(struct jffs2_raw_inode) &&
++ if (jeb->free_size > min_free(c) &&
+ (!c->nextblock || c->nextblock->free_size < jeb->free_size)) {
+ /* Better candidate for the next writes to go to */
+- if (c->nextblock)
++ if (c->nextblock) {
++ c->nextblock->dirty_size += c->nextblock->free_size + c->nextblock->wasted_size;
++ c->dirty_size += c->nextblock->free_size + c->nextblock->wasted_size;
++ c->free_size -= c->nextblock->free_size;
++ c->wasted_size -= c->nextblock->wasted_size;
++ c->nextblock->free_size = c->nextblock->wasted_size = 0;
++ if (VERYDIRTY(c, c->nextblock->dirty_size)) {
++ list_add(&c->nextblock->list, &c->very_dirty_list);
++ } else {
+ list_add(&c->nextblock->list, &c->dirty_list);
++ }
++ }
+ c->nextblock = jeb;
+ } else {
++ jeb->dirty_size += jeb->free_size + jeb->wasted_size;
++ c->dirty_size += jeb->free_size + jeb->wasted_size;
++ c->free_size -= jeb->free_size;
++ c->wasted_size -= jeb->wasted_size;
++ jeb->free_size = jeb->wasted_size = 0;
++ if (VERYDIRTY(c, jeb->dirty_size)) {
++ list_add(&jeb->list, &c->very_dirty_list);
++ } else {
+ list_add(&jeb->list, &c->dirty_list);
+ }
+- } else {
++ }
++ break;
++
++ case BLK_STATE_ALLDIRTY:
+ /* Nothing valid - not even a clean marker. Needs erasing. */
+ /* For now we just put it on the erasing list. We'll start the erases later */
+- printk(KERN_NOTICE "JFFS2: Erase block at 0x%08x is not formatted. It will be erased\n", jeb->offset);
++ D1(printk(KERN_NOTICE "JFFS2: Erase block at 0x%08x is not formatted. It will be erased\n", jeb->offset));
+ list_add(&jeb->list, &c->erase_pending_list);
+ c->nr_erasing_blocks++;
++ break;
++
++ case BLK_STATE_BADBLOCK:
++ D1(printk(KERN_NOTICE "JFFS2: Block at 0x%08x is bad\n", jeb->offset));
++ list_add(&jeb->list, &c->bad_list);
++ c->bad_size += c->sector_size;
++ c->free_size -= c->sector_size;
++ bad_blocks++;
++ break;
++ default:
++ printk(KERN_WARNING "jffs2_scan_medium(): unknown block state\n");
++ BUG();
+ }
+ }
+- /* Rotate the lists by some number to ensure wear levelling */
+- jffs2_rotate_lists(c);
+
++ /* Nextblock dirty is always seen as wasted, because we cannot recycle it now */
++ if (c->nextblock && (c->nextblock->dirty_size)) {
++ c->nextblock->wasted_size += c->nextblock->dirty_size;
++ c->wasted_size += c->nextblock->dirty_size;
++ c->dirty_size -= c->nextblock->dirty_size;
++ c->nextblock->dirty_size = 0;
++ }
++#ifdef CONFIG_JFFS2_FS_NAND
++ if (!jffs2_can_mark_obsolete(c) && c->nextblock && (c->nextblock->free_size & (c->wbuf_pagesize-1))) {
++ /* If we're going to start writing into a block which already
++ contains data, and the end of the data isn't page-aligned,
++ skip a little and align it. */
++
++ uint32_t skip = c->nextblock->free_size & (c->wbuf_pagesize-1);
++
++ D1(printk(KERN_DEBUG "jffs2_scan_medium(): Skipping %d bytes in nextblock to ensure page alignment\n",
++ skip));
++ c->nextblock->wasted_size += skip;
++ c->wasted_size += skip;
++
++ c->nextblock->free_size -= skip;
++ c->free_size -= skip;
++ }
++#endif
+ if (c->nr_erasing_blocks) {
+- if (!c->used_size && empty_blocks != c->nr_blocks) {
++ if ( !c->used_size && ((empty_blocks+bad_blocks)!= c->nr_blocks || bad_blocks == c->nr_blocks) ) {
+ printk(KERN_NOTICE "Cowardly refusing to erase blocks on filesystem with no valid JFFS2 nodes\n");
+- return -EIO;
++ printk(KERN_NOTICE "empty_blocks %d, bad_blocks %d, c->nr_blocks %d\n",empty_blocks,bad_blocks,c->nr_blocks);
++ ret = -EIO;
++ goto out;
+ }
+ jffs2_erase_pending_trigger(c);
+ }
++ ret = 0;
++ out:
++ if (buf_size)
++ kfree(flashbuf);
++#ifndef __ECOS
++ else
++ c->mtd->unpoint(c->mtd, flashbuf, 0, c->mtd->size);
++#endif
++ return ret;
++}
++
++static int jffs2_fill_scan_buf (struct jffs2_sb_info *c, unsigned char *buf,
++ uint32_t ofs, uint32_t len)
++{
++ int ret;
++ size_t retlen;
++
++ ret = jffs2_flash_read(c, ofs, len, &retlen, buf);
++ if (ret) {
++ D1(printk(KERN_WARNING "mtd->read(0x%x bytes from 0x%x) returned %d\n", len, ofs, ret));
++ return ret;
++ }
++ if (retlen < len) {
++ D1(printk(KERN_WARNING "Read at 0x%x gave only 0x%zx bytes\n", ofs, retlen));
++ return -EIO;
++ }
++ D2(printk(KERN_DEBUG "Read 0x%x bytes from 0x%08x into buf\n", len, ofs));
++ D2(printk(KERN_DEBUG "000: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n",
++ buf[0], buf[1], buf[2], buf[3], buf[4], buf[5], buf[6], buf[7], buf[8], buf[9], buf[10], buf[11], buf[12], buf[13], buf[14], buf[15]));
+ return 0;
+ }
+
+-static int jffs2_scan_eraseblock (struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb) {
+- struct jffs2_unknown_node node;
+- __u32 ofs, prevofs;
+- __u32 hdr_crc, nodetype;
++static int jffs2_scan_eraseblock (struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb,
++ unsigned char *buf, uint32_t buf_size) {
++ struct jffs2_unknown_node *node;
++ struct jffs2_unknown_node crcnode;
++ uint32_t ofs, prevofs;
++ uint32_t hdr_crc, buf_ofs, buf_len;
+ int err;
+ int noise = 0;
++ int wasempty = 0;
++ uint32_t empty_start = 0;
++#ifdef CONFIG_JFFS2_FS_NAND
++ int cleanmarkerfound = 0;
++#endif
+
+ ofs = jeb->offset;
+ prevofs = jeb->offset - 1;
+
+ D1(printk(KERN_DEBUG "jffs2_scan_eraseblock(): Scanning block at 0x%x\n", ofs));
+
+- err = jffs2_scan_empty(c, jeb, &ofs, &noise);
+- if (err) return err;
+- if (ofs == jeb->offset + c->sector_size) {
++#ifdef CONFIG_JFFS2_FS_NAND
++ if (jffs2_cleanmarker_oob(c)) {
++ int ret = jffs2_check_nand_cleanmarker(c, jeb);
++ D2(printk(KERN_NOTICE "jffs_check_nand_cleanmarker returned %d\n",ret));
++ /* Even if it's not found, we still scan to see
++ if the block is empty. We use this information
++ to decide whether to erase it or not. */
++ switch (ret) {
++ case 0: cleanmarkerfound = 1; break;
++ case 1: break;
++ case 2: return BLK_STATE_BADBLOCK;
++ case 3: return BLK_STATE_ALLDIRTY; /* Block has failed to erase min. once */
++ default: return ret;
++ }
++ }
++#endif
++ buf_ofs = jeb->offset;
++
++ if (!buf_size) {
++ buf_len = c->sector_size;
++ } else {
++ buf_len = EMPTY_SCAN_SIZE;
++ err = jffs2_fill_scan_buf(c, buf, buf_ofs, buf_len);
++ if (err)
++ return err;
++ }
++
++ /* We temporarily use 'ofs' as a pointer into the buffer/jeb */
++ ofs = 0;
++
++ /* Scan only 4KiB of 0xFF before declaring it's empty */
++ while(ofs < EMPTY_SCAN_SIZE && *(uint32_t *)(&buf[ofs]) == 0xFFFFFFFF)
++ ofs += 4;
++
++ if (ofs == EMPTY_SCAN_SIZE) {
++#ifdef CONFIG_JFFS2_FS_NAND
++ if (jffs2_cleanmarker_oob(c)) {
++ /* scan oob, take care of cleanmarker */
++ int ret = jffs2_check_oob_empty(c, jeb, cleanmarkerfound);
++ D2(printk(KERN_NOTICE "jffs2_check_oob_empty returned %d\n",ret));
++ switch (ret) {
++ case 0: return cleanmarkerfound ? BLK_STATE_CLEANMARKER : BLK_STATE_ALLFF;
++ case 1: return BLK_STATE_ALLDIRTY;
++ case 2: return BLK_STATE_BADBLOCK; /* case 2/3 are paranoia checks */
++ case 3: return BLK_STATE_ALLDIRTY; /* Block has failed to erase min. once */
++ default: return ret;
++ }
++ }
++#endif
+ D1(printk(KERN_DEBUG "Block at 0x%08x is empty (erased)\n", jeb->offset));
+- return 1; /* special return code */
++ return BLK_STATE_ALLFF; /* OK to erase if all blocks are like this */
++ }
++ if (ofs) {
++ D1(printk(KERN_DEBUG "Free space at %08x ends at %08x\n", jeb->offset,
++ jeb->offset + ofs));
++ DIRTY_SPACE(ofs);
+ }
+
++ /* Now ofs is a complete physical flash offset as it always was... */
++ ofs += jeb->offset;
++
+ noise = 10;
+
+ while(ofs < jeb->offset + c->sector_size) {
+- ssize_t retlen;
+- ACCT_PARANOIA_CHECK(jeb);
++
++ D1(ACCT_PARANOIA_CHECK(jeb));
++
++ cond_resched();
+
+ if (ofs & 3) {
+ printk(KERN_WARNING "Eep. ofs 0x%08x not word-aligned!\n", ofs);
+- ofs = (ofs+3)&~3;
++ ofs = PAD(ofs);
+ continue;
+ }
+ if (ofs == prevofs) {
+@@ -196,102 +378,173 @@
+ }
+ prevofs = ofs;
+
+- if (jeb->offset + c->sector_size < ofs + sizeof(node)) {
+- D1(printk(KERN_DEBUG "Fewer than %d bytes left to end of block. Not reading\n", sizeof(struct jffs2_unknown_node)));
++ if (jeb->offset + c->sector_size < ofs + sizeof(*node)) {
++ D1(printk(KERN_DEBUG "Fewer than %zd bytes left to end of block. (%x+%x<%x+%zx) Not reading\n", sizeof(struct jffs2_unknown_node),
++ jeb->offset, c->sector_size, ofs, sizeof(*node)));
+ DIRTY_SPACE((jeb->offset + c->sector_size)-ofs);
+ break;
+ }
+
+- err = c->mtd->read(c->mtd, ofs, sizeof(node), &retlen, (char *)&node);
+-
+- if (err) {
+- D1(printk(KERN_WARNING "mtd->read(0x%x bytes from 0x%x) returned %d\n", sizeof(node), ofs, err));
++ if (buf_ofs + buf_len < ofs + sizeof(*node)) {
++ buf_len = min_t(uint32_t, buf_size, jeb->offset + c->sector_size - ofs);
++ D1(printk(KERN_DEBUG "Fewer than %zd bytes (node header) left to end of buf. Reading 0x%x at 0x%08x\n",
++ sizeof(struct jffs2_unknown_node), buf_len, ofs));
++ err = jffs2_fill_scan_buf(c, buf, ofs, buf_len);
++ if (err)
+ return err;
++ buf_ofs = ofs;
+ }
+- if (retlen < sizeof(node)) {
+- D1(printk(KERN_WARNING "Read at 0x%x gave only 0x%x bytes\n", ofs, retlen));
+- DIRTY_SPACE(retlen);
+- ofs += retlen;
+- continue;
++
++ node = (struct jffs2_unknown_node *)&buf[ofs-buf_ofs];
++
++ if (*(uint32_t *)(&buf[ofs-buf_ofs]) == 0xffffffff) {
++ uint32_t inbuf_ofs = ofs - buf_ofs + 4;
++ uint32_t scanend;
++
++ empty_start = ofs;
++ ofs += 4;
++
++ /* If scanning empty space after only a cleanmarker, don't
++ bother scanning the whole block */
++ if (unlikely(empty_start == jeb->offset + c->cleanmarker_size &&
++ jeb->offset + EMPTY_SCAN_SIZE < buf_ofs + buf_len))
++ scanend = jeb->offset + EMPTY_SCAN_SIZE - buf_ofs;
++ else
++ scanend = buf_len;
++
++ D1(printk(KERN_DEBUG "Found empty flash at 0x%08x\n", ofs));
++ while (inbuf_ofs < scanend) {
++ if (*(uint32_t *)(&buf[inbuf_ofs]) != 0xffffffff)
++ goto emptyends;
++
++ inbuf_ofs+=4;
++ ofs += 4;
+ }
++ /* Ran off end. */
++ D1(printk(KERN_DEBUG "Empty flash ends normally at 0x%08x\n", ofs));
+
+- if (node.magic == JFFS2_EMPTY_BITMASK && node.nodetype == JFFS2_EMPTY_BITMASK) {
+- D1(printk(KERN_DEBUG "Found empty flash at 0x%x\n", ofs));
+- err = jffs2_scan_empty(c, jeb, &ofs, &noise);
+- if (err) return err;
++ if (buf_ofs == jeb->offset && jeb->used_size == PAD(c->cleanmarker_size) &&
++ c->cleanmarker_size && !jeb->first_node->next_in_ino && !jeb->dirty_size)
++ return BLK_STATE_CLEANMARKER;
++ wasempty = 1;
++ continue;
++ } else if (wasempty) {
++ emptyends:
++ printk(KERN_WARNING "Empty flash at 0x%08x ends at 0x%08x\n", empty_start, ofs);
++ DIRTY_SPACE(ofs-empty_start);
++ wasempty = 0;
+ continue;
+ }
+
+- if (ofs == jeb->offset && node.magic == KSAMTIB_CIGAM_2SFFJ) {
++ if (ofs == jeb->offset && je16_to_cpu(node->magic) == KSAMTIB_CIGAM_2SFFJ) {
+ printk(KERN_WARNING "Magic bitmask is backwards at offset 0x%08x. Wrong endian filesystem?\n", ofs);
+ DIRTY_SPACE(4);
+ ofs += 4;
+ continue;
+ }
+- if (node.magic == JFFS2_DIRTY_BITMASK) {
+- D1(printk(KERN_DEBUG "Empty bitmask at 0x%08x\n", ofs));
++ if (je16_to_cpu(node->magic) == JFFS2_DIRTY_BITMASK) {
++ D1(printk(KERN_DEBUG "Dirty bitmask at 0x%08x\n", ofs));
+ DIRTY_SPACE(4);
+ ofs += 4;
+ continue;
+ }
+- if (node.magic == JFFS2_OLD_MAGIC_BITMASK) {
++ if (je16_to_cpu(node->magic) == JFFS2_OLD_MAGIC_BITMASK) {
+ printk(KERN_WARNING "Old JFFS2 bitmask found at 0x%08x\n", ofs);
+ printk(KERN_WARNING "You cannot use older JFFS2 filesystems with newer kernels\n");
+ DIRTY_SPACE(4);
+ ofs += 4;
+ continue;
+ }
+- if (node.magic != JFFS2_MAGIC_BITMASK) {
++ if (je16_to_cpu(node->magic) != JFFS2_MAGIC_BITMASK) {
+ /* OK. We're out of possibilities. Whinge and move on */
+- noisy_printk(&noise, "jffs2_scan_eraseblock(): Magic bitmask 0x%04x not found at 0x%08x: 0x%04x instead\n", JFFS2_MAGIC_BITMASK, ofs, node.magic);
++ noisy_printk(&noise, "jffs2_scan_eraseblock(): Magic bitmask 0x%04x not found at 0x%08x: 0x%04x instead\n",
++ JFFS2_MAGIC_BITMASK, ofs,
++ je16_to_cpu(node->magic));
+ DIRTY_SPACE(4);
+ ofs += 4;
+ continue;
+ }
+ /* We seem to have a node of sorts. Check the CRC */
+- nodetype = node.nodetype;
+- node.nodetype |= JFFS2_NODE_ACCURATE;
+- hdr_crc = crc32(0, &node, sizeof(node)-4);
+- node.nodetype = nodetype;
+- if (hdr_crc != node.hdr_crc) {
++ crcnode.magic = node->magic;
++ crcnode.nodetype = cpu_to_je16( je16_to_cpu(node->nodetype) | JFFS2_NODE_ACCURATE);
++ crcnode.totlen = node->totlen;
++ hdr_crc = crc32(0, &crcnode, sizeof(crcnode)-4);
++
++ if (hdr_crc != je32_to_cpu(node->hdr_crc)) {
+ noisy_printk(&noise, "jffs2_scan_eraseblock(): Node at 0x%08x {0x%04x, 0x%04x, 0x%08x) has invalid CRC 0x%08x (calculated 0x%08x)\n",
+- ofs, node.magic, node.nodetype, node.totlen, node.hdr_crc, hdr_crc);
++ ofs, je16_to_cpu(node->magic),
++ je16_to_cpu(node->nodetype),
++ je32_to_cpu(node->totlen),
++ je32_to_cpu(node->hdr_crc),
++ hdr_crc);
+ DIRTY_SPACE(4);
+ ofs += 4;
+ continue;
+ }
+
+- if (ofs + node.totlen > jeb->offset + c->sector_size) {
++ if (ofs + je32_to_cpu(node->totlen) >
++ jeb->offset + c->sector_size) {
+ /* Eep. Node goes over the end of the erase block. */
+ printk(KERN_WARNING "Node at 0x%08x with length 0x%08x would run over the end of the erase block\n",
+- ofs, node.totlen);
++ ofs, je32_to_cpu(node->totlen));
+ printk(KERN_WARNING "Perhaps the file system was created with the wrong erase size?\n");
+ DIRTY_SPACE(4);
+ ofs += 4;
+ continue;
+ }
+
+- switch(node.nodetype | JFFS2_NODE_ACCURATE) {
++ if (!(je16_to_cpu(node->nodetype) & JFFS2_NODE_ACCURATE)) {
++ /* Wheee. This is an obsoleted node */
++ D2(printk(KERN_DEBUG "Node at 0x%08x is obsolete. Skipping\n", ofs));
++ DIRTY_SPACE(PAD(je32_to_cpu(node->totlen)));
++ ofs += PAD(je32_to_cpu(node->totlen));
++ continue;
++ }
++
++ switch(je16_to_cpu(node->nodetype)) {
+ case JFFS2_NODETYPE_INODE:
+- err = jffs2_scan_inode_node(c, jeb, &ofs);
++ if (buf_ofs + buf_len < ofs + sizeof(struct jffs2_raw_inode)) {
++ buf_len = min_t(uint32_t, buf_size, jeb->offset + c->sector_size - ofs);
++ D1(printk(KERN_DEBUG "Fewer than %zd bytes (inode node) left to end of buf. Reading 0x%x at 0x%08x\n",
++ sizeof(struct jffs2_raw_inode), buf_len, ofs));
++ err = jffs2_fill_scan_buf(c, buf, ofs, buf_len);
++ if (err)
++ return err;
++ buf_ofs = ofs;
++ node = (void *)buf;
++ }
++ err = jffs2_scan_inode_node(c, jeb, (void *)node, ofs);
+ if (err) return err;
++ ofs += PAD(je32_to_cpu(node->totlen));
+ break;
+
+ case JFFS2_NODETYPE_DIRENT:
+- err = jffs2_scan_dirent_node(c, jeb, &ofs);
++ if (buf_ofs + buf_len < ofs + je32_to_cpu(node->totlen)) {
++ buf_len = min_t(uint32_t, buf_size, jeb->offset + c->sector_size - ofs);
++ D1(printk(KERN_DEBUG "Fewer than %d bytes (dirent node) left to end of buf. Reading 0x%x at 0x%08x\n",
++ je32_to_cpu(node->totlen), buf_len, ofs));
++ err = jffs2_fill_scan_buf(c, buf, ofs, buf_len);
++ if (err)
++ return err;
++ buf_ofs = ofs;
++ node = (void *)buf;
++ }
++ err = jffs2_scan_dirent_node(c, jeb, (void *)node, ofs);
+ if (err) return err;
++ ofs += PAD(je32_to_cpu(node->totlen));
+ break;
+
+ case JFFS2_NODETYPE_CLEANMARKER:
+- if (node.totlen != sizeof(struct jffs2_unknown_node)) {
++ D1(printk(KERN_DEBUG "CLEANMARKER node found at 0x%08x\n", ofs));
++ if (je32_to_cpu(node->totlen) != c->cleanmarker_size) {
+ printk(KERN_NOTICE "CLEANMARKER node found at 0x%08x has totlen 0x%x != normal 0x%x\n",
+- ofs, node.totlen, sizeof(struct jffs2_unknown_node));
++ ofs, je32_to_cpu(node->totlen), c->cleanmarker_size);
+ DIRTY_SPACE(PAD(sizeof(struct jffs2_unknown_node)));
++ ofs += PAD(sizeof(struct jffs2_unknown_node));
+ } else if (jeb->first_node) {
+ printk(KERN_NOTICE "CLEANMARKER node found at 0x%08x, not first node in block (0x%08x)\n", ofs, jeb->offset);
+ DIRTY_SPACE(PAD(sizeof(struct jffs2_unknown_node)));
+ ofs += PAD(sizeof(struct jffs2_unknown_node));
+- continue;
+ } else {
+ struct jffs2_raw_node_ref *marker_ref = jffs2_alloc_raw_node_ref();
+ if (!marker_ref) {
+@@ -300,98 +553,80 @@
+ }
+ marker_ref->next_in_ino = NULL;
+ marker_ref->next_phys = NULL;
+- marker_ref->flash_offset = ofs;
+- marker_ref->totlen = sizeof(struct jffs2_unknown_node);
++ marker_ref->flash_offset = ofs | REF_NORMAL;
++ marker_ref->__totlen = c->cleanmarker_size;
+ jeb->first_node = jeb->last_node = marker_ref;
+
+- USED_SPACE(PAD(sizeof(struct jffs2_unknown_node)));
++ USED_SPACE(PAD(c->cleanmarker_size));
++ ofs += PAD(c->cleanmarker_size);
+ }
+- ofs += PAD(sizeof(struct jffs2_unknown_node));
++ break;
++
++ case JFFS2_NODETYPE_PADDING:
++ DIRTY_SPACE(PAD(je32_to_cpu(node->totlen)));
++ ofs += PAD(je32_to_cpu(node->totlen));
+ break;
+
+ default:
+- switch (node.nodetype & JFFS2_COMPAT_MASK) {
++ switch (je16_to_cpu(node->nodetype) & JFFS2_COMPAT_MASK) {
+ case JFFS2_FEATURE_ROCOMPAT:
+- printk(KERN_NOTICE "Read-only compatible feature node (0x%04x) found at offset 0x%08x\n", node.nodetype, ofs);
++ printk(KERN_NOTICE "Read-only compatible feature node (0x%04x) found at offset 0x%08x\n", je16_to_cpu(node->nodetype), ofs);
+ c->flags |= JFFS2_SB_FLAG_RO;
+- if (!(OFNI_BS_2SFFJ(c)->s_flags & MS_RDONLY))
++ if (!(jffs2_is_readonly(c)))
+ return -EROFS;
+- DIRTY_SPACE(PAD(node.totlen));
+- ofs += PAD(node.totlen);
+- continue;
++ DIRTY_SPACE(PAD(je32_to_cpu(node->totlen)));
++ ofs += PAD(je32_to_cpu(node->totlen));
++ break;
+
+ case JFFS2_FEATURE_INCOMPAT:
+- printk(KERN_NOTICE "Incompatible feature node (0x%04x) found at offset 0x%08x\n", node.nodetype, ofs);
++ printk(KERN_NOTICE "Incompatible feature node (0x%04x) found at offset 0x%08x\n", je16_to_cpu(node->nodetype), ofs);
+ return -EINVAL;
+
+ case JFFS2_FEATURE_RWCOMPAT_DELETE:
+- printk(KERN_NOTICE "Unknown but compatible feature node (0x%04x) found at offset 0x%08x\n", node.nodetype, ofs);
+- DIRTY_SPACE(PAD(node.totlen));
+- ofs += PAD(node.totlen);
++ D1(printk(KERN_NOTICE "Unknown but compatible feature node (0x%04x) found at offset 0x%08x\n", je16_to_cpu(node->nodetype), ofs));
++ DIRTY_SPACE(PAD(je32_to_cpu(node->totlen)));
++ ofs += PAD(je32_to_cpu(node->totlen));
+ break;
+
+ case JFFS2_FEATURE_RWCOMPAT_COPY:
+- printk(KERN_NOTICE "Unknown but compatible feature node (0x%04x) found at offset 0x%08x\n", node.nodetype, ofs);
+- USED_SPACE(PAD(node.totlen));
+- ofs += PAD(node.totlen);
++ D1(printk(KERN_NOTICE "Unknown but compatible feature node (0x%04x) found at offset 0x%08x\n", je16_to_cpu(node->nodetype), ofs));
++ USED_SPACE(PAD(je32_to_cpu(node->totlen)));
++ ofs += PAD(je32_to_cpu(node->totlen));
+ break;
+ }
+ }
+ }
+- D1(printk(KERN_DEBUG "Block at 0x%08x: free 0x%08x, dirty 0x%08x, used 0x%08x\n", jeb->offset,
+- jeb->free_size, jeb->dirty_size, jeb->used_size));
+- return 0;
+-}
+
+-/* We're pointing at the first empty word on the flash. Scan and account for the whole dirty region */
+-static int jffs2_scan_empty(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb, __u32 *startofs, int *noise)
+-{
+- __u32 *buf;
+- __u32 scanlen = (jeb->offset + c->sector_size) - *startofs;
+- __u32 curofs = *startofs;
+-
+- buf = kmalloc(min((__u32)PAGE_SIZE, scanlen), GFP_KERNEL);
+- if (!buf) {
+- printk(KERN_WARNING "Scan buffer allocation failed\n");
+- return -ENOMEM;
+- }
+- while(scanlen) {
+- ssize_t retlen;
+- int ret, i;
+-
+- ret = c->mtd->read(c->mtd, curofs, min((__u32)PAGE_SIZE, scanlen), &retlen, (char *)buf);
+- if(ret) {
+- D1(printk(KERN_WARNING "jffs2_scan_empty(): Read 0x%x bytes at 0x%08x returned %d\n", min((__u32)PAGE_SIZE, scanlen), curofs, ret));
+- kfree(buf);
+- return ret;
+- }
+- if (retlen < 4) {
+- D1(printk(KERN_WARNING "Eep. too few bytes read in scan_empty()\n"));
+- kfree(buf);
+- return -EIO;
+- }
+- for (i=0; i<(retlen / 4); i++) {
+- if (buf[i] != 0xffffffff) {
+- curofs += i*4;
+-
+- noisy_printk(noise, "jffs2_scan_empty(): Empty block at 0x%08x ends at 0x%08x (with 0x%08x)! Marking dirty\n", *startofs, curofs, buf[i]);
+- DIRTY_SPACE(curofs - (*startofs));
+- *startofs = curofs;
+- kfree(buf);
+- return 0;
+- }
+- }
+- scanlen -= retlen&~3;
+- curofs += retlen&~3;
+- }
+
+- D1(printk(KERN_DEBUG "Empty flash detected from 0x%08x to 0x%08x\n", *startofs, curofs));
+- kfree(buf);
+- *startofs = curofs;
+- return 0;
++ D1(printk(KERN_DEBUG "Block at 0x%08x: free 0x%08x, dirty 0x%08x, unchecked 0x%08x, used 0x%08x\n", jeb->offset,
++ jeb->free_size, jeb->dirty_size, jeb->unchecked_size, jeb->used_size));
++
++ /* mark_node_obsolete can add to wasted !! */
++ if (jeb->wasted_size) {
++ jeb->dirty_size += jeb->wasted_size;
++ c->dirty_size += jeb->wasted_size;
++ c->wasted_size -= jeb->wasted_size;
++ jeb->wasted_size = 0;
++ }
++
++ if ((jeb->used_size + jeb->unchecked_size) == PAD(c->cleanmarker_size) && !jeb->dirty_size
++ && (!jeb->first_node || jeb->first_node->next_in_ino) )
++ return BLK_STATE_CLEANMARKER;
++
++ /* move blocks with max 4 byte dirty space to cleanlist */
++ else if (!ISDIRTY(c->sector_size - (jeb->used_size + jeb->unchecked_size))) {
++ c->dirty_size -= jeb->dirty_size;
++ c->wasted_size += jeb->dirty_size;
++ jeb->wasted_size += jeb->dirty_size;
++ jeb->dirty_size = 0;
++ return BLK_STATE_CLEAN;
++ } else if (jeb->used_size || jeb->unchecked_size)
++ return BLK_STATE_PARTDIRTY;
++ else
++ return BLK_STATE_ALLDIRTY;
+ }
+
+-static struct jffs2_inode_cache *jffs2_scan_make_ino_cache(struct jffs2_sb_info *c, __u32 ino)
++static struct jffs2_inode_cache *jffs2_scan_make_ino_cache(struct jffs2_sb_info *c, uint32_t ino)
+ {
+ struct jffs2_inode_cache *ic;
+
+@@ -399,137 +634,77 @@
+ if (ic)
+ return ic;
+
++ if (ino > c->highest_ino)
++ c->highest_ino = ino;
++
+ ic = jffs2_alloc_inode_cache();
+ if (!ic) {
+ printk(KERN_NOTICE "jffs2_scan_make_inode_cache(): allocation of inode cache failed\n");
+ return NULL;
+ }
+ memset(ic, 0, sizeof(*ic));
+- ic->scan = kmalloc(sizeof(struct jffs2_scan_info), GFP_KERNEL);
+- if (!ic->scan) {
+- printk(KERN_NOTICE "jffs2_scan_make_inode_cache(): allocation of scan info for inode cache failed\n");
+- jffs2_free_inode_cache(ic);
+- return NULL;
+- }
+- memset(ic->scan, 0, sizeof(*ic->scan));
++
+ ic->ino = ino;
+ ic->nodes = (void *)ic;
+ jffs2_add_ino_cache(c, ic);
+ if (ino == 1)
+- ic->nlink=1;
++ ic->nlink = 1;
+ return ic;
+ }
+
+-static int jffs2_scan_inode_node(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb, __u32 *ofs)
++static int jffs2_scan_inode_node(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb,
++ struct jffs2_raw_inode *ri, uint32_t ofs)
+ {
+ struct jffs2_raw_node_ref *raw;
+- struct jffs2_full_dnode *fn;
+- struct jffs2_tmp_dnode_info *tn, **tn_list;
+ struct jffs2_inode_cache *ic;
+- struct jffs2_raw_inode ri;
+- __u32 crc;
+- __u16 oldnodetype;
+- int ret;
+- ssize_t retlen;
+-
+- D1(printk(KERN_DEBUG "jffs2_scan_inode_node(): Node at 0x%08x\n", *ofs));
+-
+- ret = c->mtd->read(c->mtd, *ofs, sizeof(ri), &retlen, (char *)&ri);
+- if (ret) {
+- printk(KERN_NOTICE "jffs2_scan_inode_node(): Read error at 0x%08x: %d\n", *ofs, ret);
+- return ret;
+- }
+- if (retlen != sizeof(ri)) {
+- printk(KERN_NOTICE "Short read: 0x%x bytes at 0x%08x instead of requested %x\n",
+- retlen, *ofs, sizeof(ri));
+- return -EIO;
+- }
++ uint32_t ino = je32_to_cpu(ri->ino);
+
+- /* We sort of assume that the node was accurate when it was
+- first written to the medium :) */
+- oldnodetype = ri.nodetype;
+- ri.nodetype |= JFFS2_NODE_ACCURATE;
+- crc = crc32(0, &ri, sizeof(ri)-8);
+- ri.nodetype = oldnodetype;
++ D1(printk(KERN_DEBUG "jffs2_scan_inode_node(): Node at 0x%08x\n", ofs));
+
+- if(crc != ri.node_crc) {
+- printk(KERN_NOTICE "jffs2_scan_inode_node(): CRC failed on node at 0x%08x: Read 0x%08x, calculated 0x%08x\n",
+- *ofs, ri.node_crc, crc);
+- /* FIXME: Why do we believe totlen? */
+- DIRTY_SPACE(4);
+- *ofs += 4;
+- return 0;
+- }
+- /* There was a bug where we wrote hole nodes out with csize/dsize
+- swapped. Deal with it */
+- if (ri.compr == JFFS2_COMPR_ZERO && !ri.dsize && ri.csize) {
+- ri.dsize = ri.csize;
+- ri.csize = 0;
+- }
++ /* We do very little here now. Just check the ino# to which we should attribute
++ this node; we can do all the CRC checking etc. later. There's a tradeoff here --
++ we used to scan the flash once only, reading everything we want from it into
++ memory, then building all our in-core data structures and freeing the extra
++ information. Now we allow the first part of the mount to complete a lot quicker,
++ but we have to go _back_ to the flash in order to finish the CRC checking, etc.
++ Which means that the _full_ amount of time to get to proper write mode with GC
++ operational may actually be _longer_ than before. Sucks to be me. */
+
+- if (ri.csize) {
+- /* Check data CRC too */
+- unsigned char *dbuf;
+- __u32 crc;
+-
+- dbuf = kmalloc(PAGE_CACHE_SIZE, GFP_KERNEL);
+- if (!dbuf) {
+- printk(KERN_NOTICE "jffs2_scan_inode_node(): allocation of temporary data buffer for CRC check failed\n");
+- return -ENOMEM;
+- }
+- ret = c->mtd->read(c->mtd, *ofs+sizeof(ri), ri.csize, &retlen, dbuf);
+- if (ret) {
+- printk(KERN_NOTICE "jffs2_scan_inode_node(): Read error at 0x%08x: %d\n", *ofs+sizeof(ri), ret);
+- kfree(dbuf);
+- return ret;
+- }
+- if (retlen != ri.csize) {
+- printk(KERN_NOTICE "Short read: 0x%x bytes at 0x%08x instead of requested %x\n",
+- retlen, *ofs+ sizeof(ri), ri.csize);
+- kfree(dbuf);
+- return -EIO;
+- }
+- crc = crc32(0, dbuf, ri.csize);
+- kfree(dbuf);
+- if (crc != ri.data_crc) {
+- printk(KERN_NOTICE "jffs2_scan_inode_node(): Data CRC failed on node at 0x%08x: Read 0x%08x, calculated 0x%08x\n",
+- *ofs, ri.data_crc, crc);
+- DIRTY_SPACE(PAD(ri.totlen));
+- *ofs += PAD(ri.totlen);
+- return 0;
+- }
+- }
+-
+- /* Wheee. It worked */
+ raw = jffs2_alloc_raw_node_ref();
+ if (!raw) {
+ printk(KERN_NOTICE "jffs2_scan_inode_node(): allocation of node reference failed\n");
+ return -ENOMEM;
+ }
+- tn = jffs2_alloc_tmp_dnode_info();
+- if (!tn) {
+- jffs2_free_raw_node_ref(raw);
+- return -ENOMEM;
+- }
+- fn = jffs2_alloc_full_dnode();
+- if (!fn) {
+- jffs2_free_tmp_dnode_info(tn);
++
++ ic = jffs2_get_ino_cache(c, ino);
++ if (!ic) {
++ /* Inocache get failed. Either we read a bogus ino# or it's just genuinely the
++ first node we found for this inode. Do a CRC check to protect against the former
++ case */
++ uint32_t crc = crc32(0, ri, sizeof(*ri)-8);
++
++ if (crc != je32_to_cpu(ri->node_crc)) {
++ printk(KERN_NOTICE "jffs2_scan_inode_node(): CRC failed on node at 0x%08x: Read 0x%08x, calculated 0x%08x\n",
++ ofs, je32_to_cpu(ri->node_crc), crc);
++ /* We believe totlen because the CRC on the node _header_ was OK, just the node itself failed. */
++ DIRTY_SPACE(PAD(je32_to_cpu(ri->totlen)));
+ jffs2_free_raw_node_ref(raw);
+- return -ENOMEM;
++ return 0;
+ }
+- ic = jffs2_scan_make_ino_cache(c, ri.ino);
++ ic = jffs2_scan_make_ino_cache(c, ino);
+ if (!ic) {
+- jffs2_free_full_dnode(fn);
+- jffs2_free_tmp_dnode_info(tn);
+ jffs2_free_raw_node_ref(raw);
+ return -ENOMEM;
+ }
++ }
+
+- /* Build the data structures and file them for later */
+- raw->flash_offset = *ofs;
+- raw->totlen = PAD(ri.totlen);
++ /* Wheee. It worked */
++
++ raw->flash_offset = ofs | REF_UNCHECKED;
++ raw->__totlen = PAD(je32_to_cpu(ri->totlen));
+ raw->next_phys = NULL;
+ raw->next_in_ino = ic->nodes;
++
+ ic->nodes = raw;
+ if (!jeb->first_node)
+ jeb->first_node = raw;
+@@ -538,134 +713,56 @@
+ jeb->last_node = raw;
+
+ D1(printk(KERN_DEBUG "Node is ino #%u, version %d. Range 0x%x-0x%x\n",
+- ri.ino, ri.version, ri.offset, ri.offset+ri.dsize));
+-
+- pseudo_random += ri.version;
+-
+- for (tn_list = &ic->scan->tmpnodes; *tn_list; tn_list = &((*tn_list)->next)) {
+- if ((*tn_list)->version < ri.version)
+- continue;
+- if ((*tn_list)->version > ri.version)
+- break;
+- /* Wheee. We've found another instance of the same version number.
+- We should obsolete one of them.
+- */
+- D1(printk(KERN_DEBUG "Duplicate version %d found in ino #%u. Previous one is at 0x%08x\n", ri.version, ic->ino, (*tn_list)->fn->raw->flash_offset &~3));
+- if (!jeb->used_size) {
+- D1(printk(KERN_DEBUG "No valid nodes yet found in this eraseblock 0x%08x, so obsoleting the new instance at 0x%08x\n",
+- jeb->offset, raw->flash_offset & ~3));
+- ri.nodetype &= ~JFFS2_NODE_ACCURATE;
+- /* Perhaps we could also mark it as such on the medium. Maybe later */
+- }
+- break;
+- }
+-
+- if (ri.nodetype & JFFS2_NODE_ACCURATE) {
+- memset(fn,0,sizeof(*fn));
+-
+- fn->ofs = ri.offset;
+- fn->size = ri.dsize;
+- fn->frags = 0;
+- fn->raw = raw;
+-
+- tn->next = NULL;
+- tn->fn = fn;
+- tn->version = ri.version;
++ je32_to_cpu(ri->ino), je32_to_cpu(ri->version),
++ je32_to_cpu(ri->offset),
++ je32_to_cpu(ri->offset)+je32_to_cpu(ri->dsize)));
+
+- USED_SPACE(PAD(ri.totlen));
+- jffs2_add_tn_to_list(tn, &ic->scan->tmpnodes);
+- /* Make sure the one we just added is the _last_ in the list
+- with this version number, so the older ones get obsoleted */
+- while (tn->next && tn->next->version == tn->version) {
++ pseudo_random += je32_to_cpu(ri->version);
+
+- D1(printk(KERN_DEBUG "Shifting new node at 0x%08x after other node at 0x%08x for version %d in list\n",
+- fn->raw->flash_offset&~3, tn->next->fn->raw->flash_offset &~3, ri.version));
+-
+- if(tn->fn != fn)
+- BUG();
+- tn->fn = tn->next->fn;
+- tn->next->fn = fn;
+- tn = tn->next;
+- }
+- } else {
+- jffs2_free_full_dnode(fn);
+- jffs2_free_tmp_dnode_info(tn);
+- raw->flash_offset |= 1;
+- DIRTY_SPACE(PAD(ri.totlen));
+- }
+- *ofs += PAD(ri.totlen);
++ UNCHECKED_SPACE(PAD(je32_to_cpu(ri->totlen)));
+ return 0;
+ }
+
+-static int jffs2_scan_dirent_node(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb, __u32 *ofs)
++static int jffs2_scan_dirent_node(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb,
++ struct jffs2_raw_dirent *rd, uint32_t ofs)
+ {
+ struct jffs2_raw_node_ref *raw;
+ struct jffs2_full_dirent *fd;
+ struct jffs2_inode_cache *ic;
+- struct jffs2_raw_dirent rd;
+- __u16 oldnodetype;
+- int ret;
+- __u32 crc;
+- ssize_t retlen;
+-
+- D1(printk(KERN_DEBUG "jffs2_scan_dirent_node(): Node at 0x%08x\n", *ofs));
++ uint32_t crc;
+
+- ret = c->mtd->read(c->mtd, *ofs, sizeof(rd), &retlen, (char *)&rd);
+- if (ret) {
+- printk(KERN_NOTICE "jffs2_scan_dirent_node(): Read error at 0x%08x: %d\n", *ofs, ret);
+- return ret;
+- }
+- if (retlen != sizeof(rd)) {
+- printk(KERN_NOTICE "Short read: 0x%x bytes at 0x%08x instead of requested %x\n",
+- retlen, *ofs, sizeof(rd));
+- return -EIO;
+- }
++ D1(printk(KERN_DEBUG "jffs2_scan_dirent_node(): Node at 0x%08x\n", ofs));
+
+- /* We sort of assume that the node was accurate when it was
+- first written to the medium :) */
+- oldnodetype = rd.nodetype;
+- rd.nodetype |= JFFS2_NODE_ACCURATE;
+- crc = crc32(0, &rd, sizeof(rd)-8);
+- rd.nodetype = oldnodetype;
++ /* We don't get here unless the node is still valid, so we don't have to
++ mask in the ACCURATE bit any more. */
++ crc = crc32(0, rd, sizeof(*rd)-8);
+
+- if (crc != rd.node_crc) {
++ if (crc != je32_to_cpu(rd->node_crc)) {
+ printk(KERN_NOTICE "jffs2_scan_dirent_node(): Node CRC failed on node at 0x%08x: Read 0x%08x, calculated 0x%08x\n",
+- *ofs, rd.node_crc, crc);
+- /* FIXME: Why do we believe totlen? */
+- DIRTY_SPACE(4);
+- *ofs += 4;
++ ofs, je32_to_cpu(rd->node_crc), crc);
++ /* We believe totlen because the CRC on the node _header_ was OK, just the node itself failed. */
++ DIRTY_SPACE(PAD(je32_to_cpu(rd->totlen)));
+ return 0;
+ }
+
+- pseudo_random += rd.version;
++ pseudo_random += je32_to_cpu(rd->version);
+
+- fd = jffs2_alloc_full_dirent(rd.nsize+1);
++ fd = jffs2_alloc_full_dirent(rd->nsize+1);
+ if (!fd) {
+ return -ENOMEM;
+-}
+- ret = c->mtd->read(c->mtd, *ofs + sizeof(rd), rd.nsize, &retlen, &fd->name[0]);
+- if (ret) {
+- jffs2_free_full_dirent(fd);
+- printk(KERN_NOTICE "jffs2_scan_dirent_node(): Read error at 0x%08x: %d\n",
+- *ofs + sizeof(rd), ret);
+- return ret;
+- }
+- if (retlen != rd.nsize) {
+- jffs2_free_full_dirent(fd);
+- printk(KERN_NOTICE "Short read: 0x%x bytes at 0x%08x instead of requested %x\n",
+- retlen, *ofs + sizeof(rd), rd.nsize);
+- return -EIO;
+ }
+- crc = crc32(0, fd->name, rd.nsize);
+- if (crc != rd.name_crc) {
++ memcpy(&fd->name, rd->name, rd->nsize);
++ fd->name[rd->nsize] = 0;
++
++ crc = crc32(0, fd->name, rd->nsize);
++ if (crc != je32_to_cpu(rd->name_crc)) {
+ printk(KERN_NOTICE "jffs2_scan_dirent_node(): Name CRC failed on node at 0x%08x: Read 0x%08x, calculated 0x%08x\n",
+- *ofs, rd.name_crc, crc);
+- fd->name[rd.nsize]=0;
+- D1(printk(KERN_NOTICE "Name for which CRC failed is (now) '%s', ino #%d\n", fd->name, rd.ino));
++ ofs, je32_to_cpu(rd->name_crc), crc);
++ D1(printk(KERN_NOTICE "Name for which CRC failed is (now) '%s', ino #%d\n", fd->name, je32_to_cpu(rd->ino)));
+ jffs2_free_full_dirent(fd);
+ /* FIXME: Why do we believe totlen? */
+- DIRTY_SPACE(PAD(rd.totlen));
+- *ofs += PAD(rd.totlen);
++ /* We believe totlen because the CRC on the node _header_ was OK, just the name failed. */
++ DIRTY_SPACE(PAD(je32_to_cpu(rd->totlen)));
+ return 0;
+ }
+ raw = jffs2_alloc_raw_node_ref();
+@@ -674,15 +771,15 @@
+ printk(KERN_NOTICE "jffs2_scan_dirent_node(): allocation of node reference failed\n");
+ return -ENOMEM;
+ }
+- ic = jffs2_scan_make_ino_cache(c, rd.pino);
++ ic = jffs2_scan_make_ino_cache(c, je32_to_cpu(rd->pino));
+ if (!ic) {
+ jffs2_free_full_dirent(fd);
+ jffs2_free_raw_node_ref(raw);
+ return -ENOMEM;
+ }
+
+- raw->totlen = PAD(rd.totlen);
+- raw->flash_offset = *ofs;
++ raw->__totlen = PAD(je32_to_cpu(rd->totlen));
++ raw->flash_offset = ofs | REF_PRISTINE;
+ raw->next_phys = NULL;
+ raw->next_in_ino = ic->nodes;
+ ic->nodes = raw;
+@@ -692,24 +789,15 @@
+ jeb->last_node->next_phys = raw;
+ jeb->last_node = raw;
+
+- if (rd.nodetype & JFFS2_NODE_ACCURATE) {
+ fd->raw = raw;
+ fd->next = NULL;
+- fd->version = rd.version;
+- fd->ino = rd.ino;
+- fd->name[rd.nsize]=0;
+- fd->nhash = full_name_hash(fd->name, rd.nsize);
+- fd->type = rd.type;
+-
+- USED_SPACE(PAD(rd.totlen));
+- jffs2_add_fd_to_list(c, fd, &ic->scan->dents);
+- } else {
+- raw->flash_offset |= 1;
+- jffs2_free_full_dirent(fd);
++ fd->version = je32_to_cpu(rd->version);
++ fd->ino = je32_to_cpu(rd->ino);
++ fd->nhash = full_name_hash(fd->name, rd->nsize);
++ fd->type = rd->type;
++ USED_SPACE(PAD(je32_to_cpu(rd->totlen)));
++ jffs2_add_fd_to_list(c, fd, &ic->scan_dents);
+
+- DIRTY_SPACE(PAD(rd.totlen));
+- }
+- *ofs += PAD(rd.totlen);
+ return 0;
+ }
+
+@@ -731,26 +819,90 @@
+ struct list_head *n = head->next;
+
+ list_del(head);
+- while(count--)
++ while(count--) {
+ n = n->next;
++ }
+ list_add(head, n);
+ }
+
+-static void jffs2_rotate_lists(struct jffs2_sb_info *c)
++void jffs2_rotate_lists(struct jffs2_sb_info *c)
+ {
+ uint32_t x;
++ uint32_t rotateby;
+
+ x = count_list(&c->clean_list);
+- if (x)
+- rotate_list((&c->clean_list), pseudo_random % x);
++ if (x) {
++ rotateby = pseudo_random % x;
++ D1(printk(KERN_DEBUG "Rotating clean_list by %d\n", rotateby));
++
++ rotate_list((&c->clean_list), rotateby);
++
++ D1(printk(KERN_DEBUG "Erase block at front of clean_list is at %08x\n",
++ list_entry(c->clean_list.next, struct jffs2_eraseblock, list)->offset));
++ } else {
++ D1(printk(KERN_DEBUG "Not rotating empty clean_list\n"));
++ }
++
++ x = count_list(&c->very_dirty_list);
++ if (x) {
++ rotateby = pseudo_random % x;
++ D1(printk(KERN_DEBUG "Rotating very_dirty_list by %d\n", rotateby));
++
++ rotate_list((&c->very_dirty_list), rotateby);
++
++ D1(printk(KERN_DEBUG "Erase block at front of very_dirty_list is at %08x\n",
++ list_entry(c->very_dirty_list.next, struct jffs2_eraseblock, list)->offset));
++ } else {
++ D1(printk(KERN_DEBUG "Not rotating empty very_dirty_list\n"));
++ }
+
+ x = count_list(&c->dirty_list);
+- if (x)
+- rotate_list((&c->dirty_list), pseudo_random % x);
++ if (x) {
++ rotateby = pseudo_random % x;
++ D1(printk(KERN_DEBUG "Rotating dirty_list by %d\n", rotateby));
++
++ rotate_list((&c->dirty_list), rotateby);
++
++ D1(printk(KERN_DEBUG "Erase block at front of dirty_list is at %08x\n",
++ list_entry(c->dirty_list.next, struct jffs2_eraseblock, list)->offset));
++ } else {
++ D1(printk(KERN_DEBUG "Not rotating empty dirty_list\n"));
++ }
++
++ x = count_list(&c->erasable_list);
++ if (x) {
++ rotateby = pseudo_random % x;
++ D1(printk(KERN_DEBUG "Rotating erasable_list by %d\n", rotateby));
+
+- if (c->nr_erasing_blocks)
+- rotate_list((&c->erase_pending_list), pseudo_random % c->nr_erasing_blocks);
++ rotate_list((&c->erasable_list), rotateby);
+
+- if (c->nr_free_blocks) /* Not that it should ever be zero */
+- rotate_list((&c->free_list), pseudo_random % c->nr_free_blocks);
++ D1(printk(KERN_DEBUG "Erase block at front of erasable_list is at %08x\n",
++ list_entry(c->erasable_list.next, struct jffs2_eraseblock, list)->offset));
++ } else {
++ D1(printk(KERN_DEBUG "Not rotating empty erasable_list\n"));
++ }
++
++ if (c->nr_erasing_blocks) {
++ rotateby = pseudo_random % c->nr_erasing_blocks;
++ D1(printk(KERN_DEBUG "Rotating erase_pending_list by %d\n", rotateby));
++
++ rotate_list((&c->erase_pending_list), rotateby);
++
++ D1(printk(KERN_DEBUG "Erase block at front of erase_pending_list is at %08x\n",
++ list_entry(c->erase_pending_list.next, struct jffs2_eraseblock, list)->offset));
++ } else {
++ D1(printk(KERN_DEBUG "Not rotating empty erase_pending_list\n"));
++ }
++
++ if (c->nr_free_blocks) {
++ rotateby = pseudo_random % c->nr_free_blocks;
++ D1(printk(KERN_DEBUG "Rotating free_list by %d\n", rotateby));
++
++ rotate_list((&c->free_list), rotateby);
++
++ D1(printk(KERN_DEBUG "Erase block at front of free_list is at %08x\n",
++ list_entry(c->free_list.next, struct jffs2_eraseblock, list)->offset));
++ } else {
++ D1(printk(KERN_DEBUG "Not rotating empty free_list\n"));
++ }
+ }
+diff -Nurb linux-mips-2.4.27/fs/jffs2/super-v24.c linux/fs/jffs2/super-v24.c
+--- linux-mips-2.4.27/fs/jffs2/super-v24.c 1970-01-01 01:00:00.000000000 +0100
++++ linux/fs/jffs2/super-v24.c 2004-11-19 10:25:12.126165288 +0100
+@@ -0,0 +1,167 @@
++/*
++ * JFFS2 -- Journalling Flash File System, Version 2.
++ *
++ * Copyright (C) 2001-2003 Red Hat, Inc.
++ *
++ * Created by David Woodhouse <dwmw2@redhat.com>
++ *
++ * For licensing information, see the file 'LICENCE' in this directory.
++ *
++ * $Id: super-v24.c,v 1.75 2003/10/06 12:52:29 dwmw2 Exp $
++ *
++ */
++
++#include <linux/config.h>
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/version.h>
++#include <linux/slab.h>
++#include <linux/init.h>
++#include <linux/list.h>
++#include <linux/fs.h>
++#include <linux/jffs2.h>
++#include <linux/pagemap.h>
++#include <linux/mtd/mtd.h>
++#include "nodelist.h"
++
++#ifndef MTD_BLOCK_MAJOR
++#define MTD_BLOCK_MAJOR 31
++#endif
++
++static void jffs2_put_super (struct super_block *);
++
++static struct super_operations jffs2_super_operations =
++{
++ .read_inode = jffs2_read_inode,
++ .put_super = jffs2_put_super,
++ .write_super = jffs2_write_super,
++ .statfs = jffs2_statfs,
++ .remount_fs = jffs2_remount_fs,
++ .clear_inode = jffs2_clear_inode,
++ .dirty_inode = jffs2_dirty_inode,
++};
++
++
++static struct super_block *jffs2_read_super(struct super_block *sb, void *data, int silent)
++{
++ struct jffs2_sb_info *c;
++ int ret;
++
++ D1(printk(KERN_DEBUG "jffs2: read_super for device %s\n", kdevname(sb->s_dev)));
++
++ if (major(sb->s_dev) != MTD_BLOCK_MAJOR) {
++ if (!silent)
++ printk(KERN_DEBUG "jffs2: attempt to mount non-MTD device %s\n", kdevname(sb->s_dev));
++ return NULL;
++ }
++
++ c = JFFS2_SB_INFO(sb);
++ memset(c, 0, sizeof(*c));
++
++ sb->s_op = &jffs2_super_operations;
++
++ c->mtd = get_mtd_device(NULL, minor(sb->s_dev));
++ if (!c->mtd) {
++ D1(printk(KERN_DEBUG "jffs2: MTD device #%u doesn't appear to exist\n", minor(sb->s_dev)));
++ return NULL;
++ }
++
++ ret = jffs2_do_fill_super(sb, data, silent);
++ if (ret) {
++ put_mtd_device(c->mtd);
++ return NULL;
++ }
++
++ return sb;
++}
++
++static void jffs2_put_super (struct super_block *sb)
++{
++ struct jffs2_sb_info *c = JFFS2_SB_INFO(sb);
++
++ D2(printk(KERN_DEBUG "jffs2: jffs2_put_super()\n"));
++
++
++ if (!(sb->s_flags & MS_RDONLY))
++ jffs2_stop_garbage_collect_thread(c);
++ down(&c->alloc_sem);
++ jffs2_flush_wbuf_pad(c);
++ up(&c->alloc_sem);
++ jffs2_free_ino_caches(c);
++ jffs2_free_raw_node_refs(c);
++ kfree(c->blocks);
++ jffs2_nand_flash_cleanup(c);
++ kfree(c->inocache_list);
++ if (c->mtd->sync)
++ c->mtd->sync(c->mtd);
++ put_mtd_device(c->mtd);
++
++ D1(printk(KERN_DEBUG "jffs2_put_super returning\n"));
++}
++
++static DECLARE_FSTYPE_DEV(jffs2_fs_type, "jffs2", jffs2_read_super);
++
++static int __init init_jffs2_fs(void)
++{
++ int ret;
++
++ printk(KERN_INFO "JFFS2 version 2.2."
++#ifdef CONFIG_FS_JFFS2_NAND
++ " (NAND)"
++#endif
++ " (C) 2001-2003 Red Hat, Inc.\n");
++
++#ifdef JFFS2_OUT_OF_KERNEL
++ /* sanity checks. Could we do these at compile time? */
++ if (sizeof(struct jffs2_sb_info) > sizeof (((struct super_block *)NULL)->u)) {
++ printk(KERN_ERR "JFFS2 error: struct jffs2_sb_info (%d bytes) doesn't fit in the super_block union (%d bytes)\n",
++ sizeof(struct jffs2_sb_info), sizeof (((struct super_block *)NULL)->u));
++ return -EIO;
++ }
++
++ if (sizeof(struct jffs2_inode_info) > sizeof (((struct inode *)NULL)->u)) {
++ printk(KERN_ERR "JFFS2 error: struct jffs2_inode_info (%d bytes) doesn't fit in the inode union (%d bytes)\n",
++ sizeof(struct jffs2_inode_info), sizeof (((struct inode *)NULL)->u));
++ return -EIO;
++ }
++#endif
++ ret = jffs2_zlib_init();
++ if (ret) {
++ printk(KERN_ERR "JFFS2 error: Failed to initialise zlib workspaces\n");
++ goto out;
++ }
++ ret = jffs2_create_slab_caches();
++ if (ret) {
++ printk(KERN_ERR "JFFS2 error: Failed to initialise slab caches\n");
++ goto out_zlib;
++ }
++ ret = register_filesystem(&jffs2_fs_type);
++ if (ret) {
++ printk(KERN_ERR "JFFS2 error: Failed to register filesystem\n");
++ goto out_slab;
++ }
++ return 0;
++
++ out_slab:
++ jffs2_destroy_slab_caches();
++ out_zlib:
++ jffs2_zlib_exit();
++ out:
++
++ return ret;
++}
++
++static void __exit exit_jffs2_fs(void)
++{
++ jffs2_destroy_slab_caches();
++ jffs2_zlib_exit();
++ unregister_filesystem(&jffs2_fs_type);
++}
++
++module_init(init_jffs2_fs);
++module_exit(exit_jffs2_fs);
++
++MODULE_DESCRIPTION("The Journalling Flash File System, v2");
++MODULE_AUTHOR("Red Hat, Inc.");
++MODULE_LICENSE("GPL"); // Actually dual-licensed, but it doesn't matter for
++ // the sake of this tag. It's Free Software.
+diff -Nurb linux-mips-2.4.27/fs/jffs2/super.c linux/fs/jffs2/super.c
+--- linux-mips-2.4.27/fs/jffs2/super.c 2003-01-11 18:53:17.000000000 +0100
++++ linux/fs/jffs2/super.c 2004-11-19 10:25:12.127165136 +0100
+@@ -1,291 +1,257 @@
+ /*
+ * JFFS2 -- Journalling Flash File System, Version 2.
+ *
+- * Copyright (C) 2001 Red Hat, Inc.
++ * Copyright (C) 2001-2003 Red Hat, Inc.
+ *
+- * Created by David Woodhouse <dwmw2@cambridge.redhat.com>
++ * Created by David Woodhouse <dwmw2@redhat.com>
+ *
+- * The original JFFS, from which the design for JFFS2 was derived,
+- * was designed and implemented by Axis Communications AB.
++ * For licensing information, see the file 'LICENCE' in this directory.
+ *
+- * The contents of this file are subject to the Red Hat eCos Public
+- * License Version 1.1 (the "Licence"); you may not use this file
+- * except in compliance with the Licence. You may obtain a copy of
+- * the Licence at http://www.redhat.com/
+- *
+- * Software distributed under the Licence is distributed on an "AS IS"
+- * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
+- * See the Licence for the specific language governing rights and
+- * limitations under the Licence.
+- *
+- * The Original Code is JFFS2 - Journalling Flash File System, version 2
+- *
+- * Alternatively, the contents of this file may be used under the
+- * terms of the GNU General Public License version 2 (the "GPL"), in
+- * which case the provisions of the GPL are applicable instead of the
+- * above. If you wish to allow the use of your version of this file
+- * only under the terms of the GPL and not to allow others to use your
+- * version of this file under the RHEPL, indicate your decision by
+- * deleting the provisions above and replace them with the notice and
+- * other provisions required by the GPL. If you do not delete the
+- * provisions above, a recipient may use your version of this file
+- * under either the RHEPL or the GPL.
+- *
+- * $Id: super.c,v 1.48.2.3 2002/10/11 09:04:44 dwmw2 Exp $
++ * $Id: super.c,v 1.90 2003/10/11 11:47:23 dwmw2 Exp $
+ *
+ */
+
+ #include <linux/config.h>
+ #include <linux/kernel.h>
+ #include <linux/module.h>
+-#include <linux/version.h>
+ #include <linux/slab.h>
+ #include <linux/init.h>
+ #include <linux/list.h>
+ #include <linux/fs.h>
++#include <linux/mount.h>
+ #include <linux/jffs2.h>
+ #include <linux/pagemap.h>
+ #include <linux/mtd/mtd.h>
+-#include <linux/interrupt.h>
++#include <linux/ctype.h>
++#include <linux/namei.h>
+ #include "nodelist.h"
+
+-#ifndef MTD_BLOCK_MAJOR
+-#define MTD_BLOCK_MAJOR 31
+-#endif
++static void jffs2_put_super(struct super_block *);
++
++static kmem_cache_t *jffs2_inode_cachep;
++
++static struct inode *jffs2_alloc_inode(struct super_block *sb)
++{
++ struct jffs2_inode_info *ei;
++ ei = (struct jffs2_inode_info *)kmem_cache_alloc(jffs2_inode_cachep, SLAB_KERNEL);
++ if (!ei)
++ return NULL;
++ return &ei->vfs_inode;
++}
++
++static void jffs2_destroy_inode(struct inode *inode)
++{
++ kmem_cache_free(jffs2_inode_cachep, JFFS2_INODE_INFO(inode));
++}
++
++static void jffs2_i_init_once(void * foo, kmem_cache_t * cachep, unsigned long flags)
++{
++ struct jffs2_inode_info *ei = (struct jffs2_inode_info *) foo;
+
+-extern void jffs2_read_inode (struct inode *);
+-void jffs2_put_super (struct super_block *);
+-void jffs2_write_super (struct super_block *);
+-static int jffs2_statfs (struct super_block *, struct statfs *);
+-int jffs2_remount_fs (struct super_block *, int *, char *);
+-extern void jffs2_clear_inode (struct inode *);
++ if ((flags & (SLAB_CTOR_VERIFY|SLAB_CTOR_CONSTRUCTOR)) ==
++ SLAB_CTOR_CONSTRUCTOR) {
++ init_MUTEX_LOCKED(&ei->sem);
++ inode_init_once(&ei->vfs_inode);
++ }
++}
+
+ static struct super_operations jffs2_super_operations =
+ {
+- read_inode: jffs2_read_inode,
+-// delete_inode: jffs2_delete_inode,
+- put_super: jffs2_put_super,
+- write_super: jffs2_write_super,
+- statfs: jffs2_statfs,
+- remount_fs: jffs2_remount_fs,
+- clear_inode: jffs2_clear_inode
++ .alloc_inode = jffs2_alloc_inode,
++ .destroy_inode =jffs2_destroy_inode,
++ .read_inode = jffs2_read_inode,
++ .put_super = jffs2_put_super,
++ .write_super = jffs2_write_super,
++ .statfs = jffs2_statfs,
++ .remount_fs = jffs2_remount_fs,
++ .clear_inode = jffs2_clear_inode,
++ .dirty_inode = jffs2_dirty_inode,
+ };
+
+-static int jffs2_statfs(struct super_block *sb, struct statfs *buf)
++static int jffs2_sb_compare(struct super_block *sb, void *data)
+ {
++ struct jffs2_sb_info *p = data;
+ struct jffs2_sb_info *c = JFFS2_SB_INFO(sb);
+- unsigned long avail;
+
+- buf->f_type = JFFS2_SUPER_MAGIC;
+- buf->f_bsize = 1 << PAGE_SHIFT;
+- buf->f_blocks = c->flash_size >> PAGE_SHIFT;
+- buf->f_files = 0;
+- buf->f_ffree = 0;
+- buf->f_namelen = JFFS2_MAX_NAME_LEN;
+-
+- spin_lock_bh(&c->erase_completion_lock);
+-
+- avail = c->dirty_size + c->free_size;
+- if (avail > c->sector_size * JFFS2_RESERVED_BLOCKS_WRITE)
+- avail -= c->sector_size * JFFS2_RESERVED_BLOCKS_WRITE;
+- else
+- avail = 0;
+-
+- buf->f_bavail = buf->f_bfree = avail >> PAGE_SHIFT;
+-
+-#if CONFIG_JFFS2_FS_DEBUG > 0
+- printk(KERN_DEBUG "STATFS:\n");
+- printk(KERN_DEBUG "flash_size: %08x\n", c->flash_size);
+- printk(KERN_DEBUG "used_size: %08x\n", c->used_size);
+- printk(KERN_DEBUG "dirty_size: %08x\n", c->dirty_size);
+- printk(KERN_DEBUG "free_size: %08x\n", c->free_size);
+- printk(KERN_DEBUG "erasing_size: %08x\n", c->erasing_size);
+- printk(KERN_DEBUG "bad_size: %08x\n", c->bad_size);
+- printk(KERN_DEBUG "sector_size: %08x\n", c->sector_size);
+-
+- if (c->nextblock) {
+- printk(KERN_DEBUG "nextblock: 0x%08x\n", c->nextblock->offset);
+- } else {
+- printk(KERN_DEBUG "nextblock: NULL\n");
+- }
+- if (c->gcblock) {
+- printk(KERN_DEBUG "gcblock: 0x%08x\n", c->gcblock->offset);
++ /* The superblocks are considered to be equivalent if the underlying MTD
++ device is the same one */
++ if (c->mtd == p->mtd) {
++ D1(printk(KERN_DEBUG "jffs2_sb_compare: match on device %d (\"%s\")\n", p->mtd->index, p->mtd->name));
++ return 1;
+ } else {
+- printk(KERN_DEBUG "gcblock: NULL\n");
++ D1(printk(KERN_DEBUG "jffs2_sb_compare: No match, device %d (\"%s\"), device %d (\"%s\")\n",
++ c->mtd->index, c->mtd->name, p->mtd->index, p->mtd->name));
++ return 0;
+ }
+- if (list_empty(&c->clean_list)) {
+- printk(KERN_DEBUG "clean_list: empty\n");
+- } else {
+- struct list_head *this;
++}
+
+- list_for_each(this, &c->clean_list) {
+- struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
+- printk(KERN_DEBUG "clean_list: %08x\n", jeb->offset);
+- }
+- }
+- if (list_empty(&c->dirty_list)) {
+- printk(KERN_DEBUG "dirty_list: empty\n");
+- } else {
+- struct list_head *this;
++static int jffs2_sb_set(struct super_block *sb, void *data)
++{
++ struct jffs2_sb_info *p = data;
+
+- list_for_each(this, &c->dirty_list) {
+- struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
+- printk(KERN_DEBUG "dirty_list: %08x\n", jeb->offset);
+- }
+- }
+- if (list_empty(&c->erasing_list)) {
+- printk(KERN_DEBUG "erasing_list: empty\n");
+- } else {
+- struct list_head *this;
++ /* For persistence of NFS exports etc. we use the same s_dev
++ each time we mount the device, don't just use an anonymous
++ device */
++ sb->s_fs_info = p;
++ p->os_priv = sb;
++ sb->s_dev = MKDEV(MTD_BLOCK_MAJOR, p->mtd->index);
+
+- list_for_each(this, &c->erasing_list) {
+- struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
+- printk(KERN_DEBUG "erasing_list: %08x\n", jeb->offset);
+- }
+- }
+- if (list_empty(&c->erase_pending_list)) {
+- printk(KERN_DEBUG "erase_pending_list: empty\n");
+- } else {
+- struct list_head *this;
++ return 0;
++}
+
+- list_for_each(this, &c->erase_pending_list) {
+- struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
+- printk(KERN_DEBUG "erase_pending_list: %08x\n", jeb->offset);
+- }
+- }
+- if (list_empty(&c->free_list)) {
+- printk(KERN_DEBUG "free_list: empty\n");
+- } else {
+- struct list_head *this;
++static struct super_block *jffs2_get_sb_mtd(struct file_system_type *fs_type,
++ int flags, const char *dev_name,
++ void *data, struct mtd_info *mtd)
++{
++ struct super_block *sb;
++ struct jffs2_sb_info *c;
++ int ret;
+
+- list_for_each(this, &c->free_list) {
+- struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
+- printk(KERN_DEBUG "free_list: %08x\n", jeb->offset);
+- }
+- }
+- if (list_empty(&c->bad_list)) {
+- printk(KERN_DEBUG "bad_list: empty\n");
+- } else {
+- struct list_head *this;
++ c = kmalloc(sizeof(*c), GFP_KERNEL);
++ if (!c)
++ return ERR_PTR(-ENOMEM);
++ memset(c, 0, sizeof(*c));
++ c->mtd = mtd;
+
+- list_for_each(this, &c->bad_list) {
+- struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
+- printk(KERN_DEBUG "bad_list: %08x\n", jeb->offset);
+- }
+- }
+- if (list_empty(&c->bad_used_list)) {
+- printk(KERN_DEBUG "bad_used_list: empty\n");
+- } else {
+- struct list_head *this;
++ sb = sget(fs_type, jffs2_sb_compare, jffs2_sb_set, c);
++
++ if (IS_ERR(sb))
++ goto out_put;
+
+- list_for_each(this, &c->bad_used_list) {
+- struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
+- printk(KERN_DEBUG "bad_used_list: %08x\n", jeb->offset);
++ if (sb->s_root) {
++ /* New mountpoint for JFFS2 which is already mounted */
++ D1(printk(KERN_DEBUG "jffs2_get_sb_mtd(): Device %d (\"%s\") is already mounted\n",
++ mtd->index, mtd->name));
++ goto out_put;
+ }
++
++ D1(printk(KERN_DEBUG "jffs2_get_sb_mtd(): New superblock for device %d (\"%s\")\n",
++ mtd->index, mtd->name));
++
++ sb->s_op = &jffs2_super_operations;
++
++ ret = jffs2_do_fill_super(sb, data, (flags&MS_VERBOSE)?1:0);
++
++ if (ret) {
++ /* Failure case... */
++ up_write(&sb->s_umount);
++ deactivate_super(sb);
++ return ERR_PTR(ret);
+ }
+-#endif /* CONFIG_JFFS2_FS_DEBUG */
+
+- spin_unlock_bh(&c->erase_completion_lock);
++ sb->s_flags |= MS_ACTIVE;
++ return sb;
+
++ out_put:
++ kfree(c);
++ put_mtd_device(mtd);
+
+- return 0;
++ return sb;
+ }
+
+-static struct super_block *jffs2_read_super(struct super_block *sb, void *data, int silent)
++static struct super_block *jffs2_get_sb_mtdnr(struct file_system_type *fs_type,
++ int flags, const char *dev_name,
++ void *data, int mtdnr)
+ {
+- struct jffs2_sb_info *c;
+- struct inode *root_i;
+- int i;
+-
+- D1(printk(KERN_DEBUG "jffs2: read_super for device %s\n", kdevname(sb->s_dev)));
++ struct mtd_info *mtd;
+
+- if (MAJOR(sb->s_dev) != MTD_BLOCK_MAJOR) {
+- if (!silent)
+- printk(KERN_DEBUG "jffs2: attempt to mount non-MTD device %s\n", kdevname(sb->s_dev));
+- return NULL;
++ mtd = get_mtd_device(NULL, mtdnr);
++ if (!mtd) {
++ D1(printk(KERN_DEBUG "jffs2: MTD device #%u doesn't appear to exist\n", mtdnr));
++ return ERR_PTR(-EINVAL);
+ }
+
+- c = JFFS2_SB_INFO(sb);
+- memset(c, 0, sizeof(*c));
++ return jffs2_get_sb_mtd(fs_type, flags, dev_name, data, mtd);
++}
+
+- c->mtd = get_mtd_device(NULL, MINOR(sb->s_dev));
+- if (!c->mtd) {
+- D1(printk(KERN_DEBUG "jffs2: MTD device #%u doesn't appear to exist\n", MINOR(sb->s_dev)));
+- return NULL;
++static struct super_block *jffs2_get_sb(struct file_system_type *fs_type,
++ int flags, const char *dev_name,
++ void *data)
++{
++ int err;
++ struct nameidata nd;
++ int mtdnr;
++
++ if (!dev_name)
++ return ERR_PTR(-EINVAL);
++
++ D1(printk(KERN_DEBUG "jffs2_get_sb(): dev_name \"%s\"\n", dev_name));
++
++ /* The preferred way of mounting in future; especially when
++ CONFIG_BLK_DEV is implemented - we specify the underlying
++ MTD device by number or by name, so that we don't require
++ block device support to be present in the kernel. */
++
++ /* FIXME: How to do the root fs this way? */
++
++ if (dev_name[0] == 'm' && dev_name[1] == 't' && dev_name[2] == 'd') {
++ /* Probably mounting without the blkdev crap */
++ if (dev_name[3] == ':') {
++ struct mtd_info *mtd;
++
++ /* Mount by MTD device name */
++ D1(printk(KERN_DEBUG "jffs2_get_sb(): mtd:%%s, name \"%s\"\n", dev_name+4));
++ for (mtdnr = 0; mtdnr < MAX_MTD_DEVICES; mtdnr++) {
++ mtd = get_mtd_device(NULL, mtdnr);
++ if (mtd) {
++ if (!strcmp(mtd->name, dev_name+4))
++ return jffs2_get_sb_mtd(fs_type, flags, dev_name, data, mtd);
++ put_mtd_device(mtd);
+ }
+- c->sector_size = c->mtd->erasesize;
+- c->free_size = c->flash_size = c->mtd->size;
+- c->nr_blocks = c->mtd->size / c->mtd->erasesize;
+- c->blocks = kmalloc(sizeof(struct jffs2_eraseblock) * c->nr_blocks, GFP_KERNEL);
+- if (!c->blocks)
+- goto out_mtd;
+- for (i=0; i<c->nr_blocks; i++) {
+- INIT_LIST_HEAD(&c->blocks[i].list);
+- c->blocks[i].offset = i * c->sector_size;
+- c->blocks[i].free_size = c->sector_size;
+- c->blocks[i].dirty_size = 0;
+- c->blocks[i].used_size = 0;
+- c->blocks[i].first_node = NULL;
+- c->blocks[i].last_node = NULL;
+- }
+-
+- spin_lock_init(&c->nodelist_lock);
+- init_MUTEX(&c->alloc_sem);
+- init_waitqueue_head(&c->erase_wait);
+- spin_lock_init(&c->erase_completion_lock);
+- spin_lock_init(&c->inocache_lock);
+-
+- INIT_LIST_HEAD(&c->clean_list);
+- INIT_LIST_HEAD(&c->dirty_list);
+- INIT_LIST_HEAD(&c->erasing_list);
+- INIT_LIST_HEAD(&c->erase_pending_list);
+- INIT_LIST_HEAD(&c->erase_complete_list);
+- INIT_LIST_HEAD(&c->free_list);
+- INIT_LIST_HEAD(&c->bad_list);
+- INIT_LIST_HEAD(&c->bad_used_list);
+- c->highest_ino = 1;
+-
+- if (jffs2_build_filesystem(c)) {
+- D1(printk(KERN_DEBUG "build_fs failed\n"));
+- goto out_nodes;
+ }
++ printk(KERN_NOTICE "jffs2_get_sb(): MTD device with name \"%s\" not found.\n", dev_name+4);
++ } else if (isdigit(dev_name[3])) {
++ /* Mount by MTD device number name */
++ char *endptr;
+
+- sb->s_op = &jffs2_super_operations;
++ mtdnr = simple_strtoul(dev_name+3, &endptr, 0);
++ if (!*endptr) {
++ /* It was a valid number */
++ D1(printk(KERN_DEBUG "jffs2_get_sb(): mtd%%d, mtdnr %d\n", mtdnr));
++ return jffs2_get_sb_mtdnr(fs_type, flags, dev_name, data, mtdnr);
++ }
++ }
++ }
+
+- D1(printk(KERN_DEBUG "jffs2_read_super(): Getting root inode\n"));
+- root_i = iget(sb, 1);
+- if (is_bad_inode(root_i)) {
+- D1(printk(KERN_WARNING "get root inode failed\n"));
+- goto out_nodes;
++ /* Try the old way - the hack where we allowed users to mount
++ /dev/mtdblock$(n) but didn't actually _use_ the blkdev */
++
++ err = path_lookup(dev_name, LOOKUP_FOLLOW, &nd);
++
++ D1(printk(KERN_DEBUG "jffs2_get_sb(): path_lookup() returned %d, inode %p\n",
++ err, nd.dentry->d_inode));
++
++ if (err)
++ return ERR_PTR(err);
++
++ err = -EINVAL;
++
++ if (!S_ISBLK(nd.dentry->d_inode->i_mode))
++ goto out;
++
++ if (nd.mnt->mnt_flags & MNT_NODEV) {
++ err = -EACCES;
++ goto out;
+ }
+
+- D1(printk(KERN_DEBUG "jffs2_read_super(): d_alloc_root()\n"));
+- sb->s_root = d_alloc_root(root_i);
+- if (!sb->s_root)
+- goto out_root_i;
++ if (imajor(nd.dentry->d_inode) != MTD_BLOCK_MAJOR) {
++ if (!(flags & MS_VERBOSE)) /* Yes I mean this. Strangely */
++ printk(KERN_NOTICE "Attempt to mount non-MTD device \"%s\" as JFFS2\n",
++ dev_name);
++ goto out;
++ }
+
+-#if LINUX_VERSION_CODE >= 0x20403
+- sb->s_maxbytes = 0xFFFFFFFF;
+-#endif
+- sb->s_blocksize = PAGE_CACHE_SIZE;
+- sb->s_blocksize_bits = PAGE_CACHE_SHIFT;
+- sb->s_magic = JFFS2_SUPER_MAGIC;
+- if (!(sb->s_flags & MS_RDONLY))
+- jffs2_start_garbage_collect_thread(c);
+- return sb;
++ mtdnr = iminor(nd.dentry->d_inode);
++ path_release(&nd);
+
+- out_root_i:
+- iput(root_i);
+- out_nodes:
+- jffs2_free_ino_caches(c);
+- jffs2_free_raw_node_refs(c);
+- kfree(c->blocks);
+- out_mtd:
+- put_mtd_device(c->mtd);
+- return NULL;
++ return jffs2_get_sb_mtdnr(fs_type, flags, dev_name, data, mtdnr);
++
++out:
++ path_release(&nd);
++ return ERR_PTR(err);
+ }
+
+-void jffs2_put_super (struct super_block *sb)
++static void jffs2_put_super (struct super_block *sb)
+ {
+ struct jffs2_sb_info *c = JFFS2_SB_INFO(sb);
+
+@@ -293,74 +259,53 @@
+
+ if (!(sb->s_flags & MS_RDONLY))
+ jffs2_stop_garbage_collect_thread(c);
++ down(&c->alloc_sem);
++ jffs2_flush_wbuf_pad(c);
++ up(&c->alloc_sem);
+ jffs2_free_ino_caches(c);
+ jffs2_free_raw_node_refs(c);
+ kfree(c->blocks);
++ jffs2_nand_flash_cleanup(c);
++ kfree(c->inocache_list);
+ if (c->mtd->sync)
+ c->mtd->sync(c->mtd);
+- put_mtd_device(c->mtd);
+
+ D1(printk(KERN_DEBUG "jffs2_put_super returning\n"));
+ }
+
+-int jffs2_remount_fs (struct super_block *sb, int *flags, char *data)
++static void jffs2_kill_sb(struct super_block *sb)
+ {
+ struct jffs2_sb_info *c = JFFS2_SB_INFO(sb);
+-
+- if (c->flags & JFFS2_SB_FLAG_RO && !(sb->s_flags & MS_RDONLY))
+- return -EROFS;
+-
+- /* We stop if it was running, then restart if it needs to.
+- This also catches the case where it was stopped and this
+- is just a remount to restart it */
+- if (!(sb->s_flags & MS_RDONLY))
+- jffs2_stop_garbage_collect_thread(c);
+-
+- if (!(*flags & MS_RDONLY))
+- jffs2_start_garbage_collect_thread(c);
+-
+- sb->s_flags = (sb->s_flags & ~MS_RDONLY)|(*flags & MS_RDONLY);
+-
+- return 0;
+-}
+-
+-void jffs2_write_super (struct super_block *sb)
+-{
+- struct jffs2_sb_info *c = JFFS2_SB_INFO(sb);
+- sb->s_dirt = 0;
+-
+- if (sb->s_flags & MS_RDONLY)
+- return;
+-
+- jffs2_garbage_collect_trigger(c);
+- jffs2_erase_pending_blocks(c);
+- jffs2_mark_erased_blocks(c);
++ generic_shutdown_super(sb);
++ put_mtd_device(c->mtd);
++ kfree(c);
+ }
+
+-
+-static DECLARE_FSTYPE_DEV(jffs2_fs_type, "jffs2", jffs2_read_super);
++static struct file_system_type jffs2_fs_type = {
++ .owner = THIS_MODULE,
++ .name = "jffs2",
++ .get_sb = jffs2_get_sb,
++ .kill_sb = jffs2_kill_sb,
++};
+
+ static int __init init_jffs2_fs(void)
+ {
+ int ret;
+
+- printk(KERN_NOTICE "JFFS2 version 2.1. (C) 2001 Red Hat, Inc., designed by Axis Communications AB.\n");
+-
+-#ifdef JFFS2_OUT_OF_KERNEL
+- /* sanity checks. Could we do these at compile time? */
+- if (sizeof(struct jffs2_sb_info) > sizeof (((struct super_block *)NULL)->u)) {
+- printk(KERN_ERR "JFFS2 error: struct jffs2_sb_info (%d bytes) doesn't fit in the super_block union (%d bytes)\n",
+- sizeof(struct jffs2_sb_info), sizeof (((struct super_block *)NULL)->u));
+- return -EIO;
+- }
+-
+- if (sizeof(struct jffs2_inode_info) > sizeof (((struct inode *)NULL)->u)) {
+- printk(KERN_ERR "JFFS2 error: struct jffs2_inode_info (%d bytes) doesn't fit in the inode union (%d bytes)\n",
+- sizeof(struct jffs2_inode_info), sizeof (((struct inode *)NULL)->u));
+- return -EIO;
+- }
++ printk(KERN_INFO "JFFS2 version 2.2."
++#ifdef CONFIG_FS_JFFS2_NAND
++ " (NAND)"
+ #endif
++ " (C) 2001-2003 Red Hat, Inc.\n");
+
++ jffs2_inode_cachep = kmem_cache_create("jffs2_i",
++ sizeof(struct jffs2_inode_info),
++ 0, SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT,
++ jffs2_i_init_once, NULL);
++ if (!jffs2_inode_cachep) {
++ printk(KERN_ERR "JFFS2 error: Failed to initialise inode cache\n");
++ return -ENOMEM;
++ }
+ ret = jffs2_zlib_init();
+ if (ret) {
+ printk(KERN_ERR "JFFS2 error: Failed to initialise zlib workspaces\n");
+@@ -388,9 +333,10 @@
+
+ static void __exit exit_jffs2_fs(void)
+ {
++ unregister_filesystem(&jffs2_fs_type);
+ jffs2_destroy_slab_caches();
+ jffs2_zlib_exit();
+- unregister_filesystem(&jffs2_fs_type);
++ kmem_cache_destroy(jffs2_inode_cachep);
+ }
+
+ module_init(init_jffs2_fs);
+diff -Nurb linux-mips-2.4.27/fs/jffs2/symlink.c linux/fs/jffs2/symlink.c
+--- linux-mips-2.4.27/fs/jffs2/symlink.c 2002-06-27 00:36:20.000000000 +0200
++++ linux/fs/jffs2/symlink.c 2004-11-19 10:25:12.129164832 +0100
+@@ -3,35 +3,11 @@
+ *
+ * Copyright (C) 2001, 2002 Red Hat, Inc.
+ *
+- * Created by David Woodhouse <dwmw2@cambridge.redhat.com>
++ * Created by David Woodhouse <dwmw2@redhat.com>
+ *
+- * The original JFFS, from which the design for JFFS2 was derived,
+- * was designed and implemented by Axis Communications AB.
++ * For licensing information, see the file 'LICENCE' in this directory.
+ *
+- * The contents of this file are subject to the Red Hat eCos Public
+- * License Version 1.1 (the "Licence"); you may not use this file
+- * except in compliance with the Licence. You may obtain a copy of
+- * the Licence at http://www.redhat.com/
+- *
+- * Software distributed under the Licence is distributed on an "AS IS"
+- * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
+- * See the Licence for the specific language governing rights and
+- * limitations under the Licence.
+- *
+- * The Original Code is JFFS2 - Journalling Flash File System, version 2
+- *
+- * Alternatively, the contents of this file may be used under the
+- * terms of the GNU General Public License version 2 (the "GPL"), in
+- * which case the provisions of the GPL are applicable instead of the
+- * above. If you wish to allow the use of your version of this file
+- * only under the terms of the GPL and not to allow others to use your
+- * version of this file under the RHEPL, indicate your decision by
+- * deleting the provisions above and replace them with the notice and
+- * other provisions required by the GPL. If you do not delete the
+- * provisions above, a recipient may use your version of this file
+- * under either the RHEPL or the GPL.
+- *
+- * $Id: symlink.c,v 1.5.2.1 2002/01/15 10:39:06 dwmw2 Exp $
++ * $Id: symlink.c,v 1.12 2003/10/04 08:33:07 dwmw2 Exp $
+ *
+ */
+
+@@ -39,7 +15,6 @@
+ #include <linux/kernel.h>
+ #include <linux/slab.h>
+ #include <linux/fs.h>
+-#include <linux/jffs2.h>
+ #include "nodelist.h"
+
+ int jffs2_readlink(struct dentry *dentry, char *buffer, int buflen);
+@@ -47,45 +22,17 @@
+
+ struct inode_operations jffs2_symlink_inode_operations =
+ {
+- readlink: jffs2_readlink,
+- follow_link: jffs2_follow_link,
+- setattr: jffs2_setattr
++ .readlink = jffs2_readlink,
++ .follow_link = jffs2_follow_link,
++ .setattr = jffs2_setattr
+ };
+
+-static char *jffs2_getlink(struct dentry *dentry)
+-{
+- struct jffs2_inode_info *f = JFFS2_INODE_INFO(dentry->d_inode);
+- char *buf;
+- int ret;
+-
+- down(&f->sem);
+- if (!f->metadata) {
+- up(&f->sem);
+- printk(KERN_NOTICE "No metadata for symlink inode #%lu\n", dentry->d_inode->i_ino);
+- return ERR_PTR(-EINVAL);
+- }
+- buf = kmalloc(f->metadata->size+1, GFP_USER);
+- if (!buf) {
+- up(&f->sem);
+- return ERR_PTR(-ENOMEM);
+- }
+- buf[f->metadata->size]=0;
+-
+- ret = jffs2_read_dnode(JFFS2_SB_INFO(dentry->d_inode->i_sb), f->metadata, buf, 0, f->metadata->size);
+- up(&f->sem);
+- if (ret) {
+- kfree(buf);
+- return ERR_PTR(ret);
+- }
+- return buf;
+-
+-}
+ int jffs2_readlink(struct dentry *dentry, char *buffer, int buflen)
+ {
+ unsigned char *kbuf;
+ int ret;
+
+- kbuf = jffs2_getlink(dentry);
++ kbuf = jffs2_getlink(JFFS2_SB_INFO(dentry->d_inode->i_sb), JFFS2_INODE_INFO(dentry->d_inode));
+ if (IS_ERR(kbuf))
+ return PTR_ERR(kbuf);
+
+@@ -99,7 +46,7 @@
+ unsigned char *buf;
+ int ret;
+
+- buf = jffs2_getlink(dentry);
++ buf = jffs2_getlink(JFFS2_SB_INFO(dentry->d_inode->i_sb), JFFS2_INODE_INFO(dentry->d_inode));
+
+ if (IS_ERR(buf))
+ return PTR_ERR(buf);
+diff -Nurb linux-mips-2.4.27/fs/jffs2/wbuf.c linux/fs/jffs2/wbuf.c
+--- linux-mips-2.4.27/fs/jffs2/wbuf.c 1970-01-01 01:00:00.000000000 +0100
++++ linux/fs/jffs2/wbuf.c 2004-11-19 10:25:12.131164528 +0100
+@@ -0,0 +1,1156 @@
++/*
++ * JFFS2 -- Journalling Flash File System, Version 2.
++ *
++ * Copyright (C) 2001-2003 Red Hat, Inc.
++ *
++ * Created by David Woodhouse <dwmw2@redhat.com>
++ *
++ * For licensing information, see the file 'LICENCE' in this directory.
++ *
++ * $Id: wbuf.c,v 1.58 2003/11/02 09:51:10 dwmw2 Exp $
++ *
++ */
++
++#include <linux/kernel.h>
++#include <linux/slab.h>
++#include <linux/mtd/mtd.h>
++#include <linux/crc32.h>
++#include <linux/mtd/nand.h>
++#include "nodelist.h"
++
++/* For testing write failures */
++#undef BREAKME
++#undef BREAKMEHEADER
++
++#ifdef BREAKME
++static unsigned char *brokenbuf;
++#endif
++
++/* max. erase failures before we mark a block bad */
++#define MAX_ERASE_FAILURES 5
++
++/* two seconds timeout for timed wbuf-flushing */
++#define WBUF_FLUSH_TIMEOUT 2 * HZ
++
++struct jffs2_inodirty {
++ uint32_t ino;
++ struct jffs2_inodirty *next;
++};
++
++static struct jffs2_inodirty inodirty_nomem;
++
++static int jffs2_wbuf_pending_for_ino(struct jffs2_sb_info *c, uint32_t ino)
++{
++ struct jffs2_inodirty *this = c->wbuf_inodes;
++
++ /* If a malloc failed, consider _everything_ dirty */
++ if (this == &inodirty_nomem)
++ return 1;
++
++ /* If ino == 0, _any_ non-GC writes mean 'yes' */
++ if (this && !ino)
++ return 1;
++
++ /* Look to see if the inode in question is pending in the wbuf */
++ while (this) {
++ if (this->ino == ino)
++ return 1;
++ this = this->next;
++ }
++ return 0;
++}
++
++static void jffs2_clear_wbuf_ino_list(struct jffs2_sb_info *c)
++{
++ struct jffs2_inodirty *this;
++
++ this = c->wbuf_inodes;
++
++ if (this != &inodirty_nomem) {
++ while (this) {
++ struct jffs2_inodirty *next = this->next;
++ kfree(this);
++ this = next;
++ }
++ }
++ c->wbuf_inodes = NULL;
++}
++
++static void jffs2_wbuf_dirties_inode(struct jffs2_sb_info *c, uint32_t ino)
++{
++ struct jffs2_inodirty *new;
++
++ /* Mark the superblock dirty so that kupdated will flush... */
++ OFNI_BS_2SFFJ(c)->s_dirt = 1;
++
++ if (jffs2_wbuf_pending_for_ino(c, ino))
++ return;
++
++ new = kmalloc(sizeof(*new), GFP_KERNEL);
++ if (!new) {
++ D1(printk(KERN_DEBUG "No memory to allocate inodirty. Fallback to all considered dirty\n"));
++ jffs2_clear_wbuf_ino_list(c);
++ c->wbuf_inodes = &inodirty_nomem;
++ return;
++ }
++ new->ino = ino;
++ new->next = c->wbuf_inodes;
++ c->wbuf_inodes = new;
++ return;
++}
++
++static inline void jffs2_refile_wbuf_blocks(struct jffs2_sb_info *c)
++{
++ struct list_head *this, *next;
++ static int n;
++
++ if (list_empty(&c->erasable_pending_wbuf_list))
++ return;
++
++ list_for_each_safe(this, next, &c->erasable_pending_wbuf_list) {
++ struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
++
++ D1(printk(KERN_DEBUG "Removing eraseblock at 0x%08x from erasable_pending_wbuf_list...\n", jeb->offset));
++ list_del(this);
++ if ((jiffies + (n++)) & 127) {
++ /* Most of the time, we just erase it immediately. Otherwise we
++ spend ages scanning it on mount, etc. */
++ D1(printk(KERN_DEBUG "...and adding to erase_pending_list\n"));
++ list_add_tail(&jeb->list, &c->erase_pending_list);
++ c->nr_erasing_blocks++;
++ jffs2_erase_pending_trigger(c);
++ } else {
++ /* Sometimes, however, we leave it elsewhere so it doesn't get
++ immediately reused, and we spread the load a bit. */
++ D1(printk(KERN_DEBUG "...and adding to erasable_list\n"));
++ list_add_tail(&jeb->list, &c->erasable_list);
++ }
++ }
++}
++
++/* Recover from failure to write wbuf. Recover the nodes up to the
++ * wbuf, not the one which we were starting to try to write. */
++
++static void jffs2_wbuf_recover(struct jffs2_sb_info *c)
++{
++ struct jffs2_eraseblock *jeb, *new_jeb;
++ struct jffs2_raw_node_ref **first_raw, **raw;
++ size_t retlen;
++ int ret;
++ unsigned char *buf;
++ uint32_t start, end, ofs, len;
++
++ spin_lock(&c->erase_completion_lock);
++
++ jeb = &c->blocks[c->wbuf_ofs / c->sector_size];
++
++ D1(printk("About to refile bad block at %08x\n", jeb->offset));
++
++ D2(jffs2_dump_block_lists(c));
++ /* File the existing block on the bad_used_list.... */
++ if (c->nextblock == jeb)
++ c->nextblock = NULL;
++ else /* Not sure this should ever happen... need more coffee */
++ list_del(&jeb->list);
++ if (jeb->first_node) {
++ D1(printk("Refiling block at %08x to bad_used_list\n", jeb->offset));
++ list_add(&jeb->list, &c->bad_used_list);
++ } else {
++ BUG();
++ /* It has to have had some nodes or we couldn't be here */
++ D1(printk("Refiling block at %08x to erase_pending_list\n", jeb->offset));
++ list_add(&jeb->list, &c->erase_pending_list);
++ c->nr_erasing_blocks++;
++ jffs2_erase_pending_trigger(c);
++ }
++ D2(jffs2_dump_block_lists(c));
++
++ /* Adjust its size counts accordingly */
++ c->wasted_size += jeb->free_size;
++ c->free_size -= jeb->free_size;
++ jeb->wasted_size += jeb->free_size;
++ jeb->free_size = 0;
++
++ ACCT_SANITY_CHECK(c,jeb);
++ D1(ACCT_PARANOIA_CHECK(jeb));
++
++ /* Find the first node to be recovered, by skipping over every
++ node which ends before the wbuf starts, or which is obsolete. */
++ first_raw = &jeb->first_node;
++ while (*first_raw &&
++ (ref_obsolete(*first_raw) ||
++ (ref_offset(*first_raw)+ref_totlen(c, jeb, *first_raw)) < c->wbuf_ofs)) {
++ D1(printk(KERN_DEBUG "Skipping node at 0x%08x(%d)-0x%08x which is either before 0x%08x or obsolete\n",
++ ref_offset(*first_raw), ref_flags(*first_raw),
++ (ref_offset(*first_raw) + ref_totlen(c, jeb, *first_raw)),
++ c->wbuf_ofs));
++ first_raw = &(*first_raw)->next_phys;
++ }
++
++ if (!*first_raw) {
++ /* All nodes were obsolete. Nothing to recover. */
++ D1(printk(KERN_DEBUG "No non-obsolete nodes to be recovered. Just filing block bad\n"));
++ spin_unlock(&c->erase_completion_lock);
++ return;
++ }
++
++ start = ref_offset(*first_raw);
++ end = ref_offset(*first_raw) + ref_totlen(c, jeb, *first_raw);
++
++ /* Find the last node to be recovered */
++ raw = first_raw;
++ while ((*raw)) {
++ if (!ref_obsolete(*raw))
++ end = ref_offset(*raw) + ref_totlen(c, jeb, *raw);
++
++ raw = &(*raw)->next_phys;
++ }
++ spin_unlock(&c->erase_completion_lock);
++
++ D1(printk(KERN_DEBUG "wbuf recover %08x-%08x\n", start, end));
++
++ buf = NULL;
++ if (start < c->wbuf_ofs) {
++ /* First affected node was already partially written.
++ * Attempt to reread the old data into our buffer. */
++
++ buf = kmalloc(end - start, GFP_KERNEL);
++ if (!buf) {
++ printk(KERN_CRIT "Malloc failure in wbuf recovery. Data loss ensues.\n");
++
++ goto read_failed;
++ }
++
++ /* Do the read... */
++ ret = c->mtd->read_ecc(c->mtd, start, c->wbuf_ofs - start, &retlen, buf, NULL, c->oobinfo);
++ if (ret == -EIO && retlen == c->wbuf_ofs - start) {
++ /* ECC recovered */
++ ret = 0;
++ }
++ if (ret || retlen != c->wbuf_ofs - start) {
++ printk(KERN_CRIT "Old data are already lost in wbuf recovery. Data loss ensues.\n");
++
++ kfree(buf);
++ buf = NULL;
++ read_failed:
++ first_raw = &(*first_raw)->next_phys;
++ /* If this was the only node to be recovered, give up */
++ if (!(*first_raw))
++ return;
++
++ /* It wasn't. Go on and try to recover nodes complete in the wbuf */
++ start = ref_offset(*first_raw);
++ } else {
++ /* Read succeeded. Copy the remaining data from the wbuf */
++ memcpy(buf + (c->wbuf_ofs - start), c->wbuf, end - c->wbuf_ofs);
++ }
++ }
++ /* OK... we're to rewrite (end-start) bytes of data from first_raw onwards.
++ Either 'buf' contains the data, or we find it in the wbuf */
++
++
++ /* ... and get an allocation of space from a shiny new block instead */
++ ret = jffs2_reserve_space_gc(c, end-start, &ofs, &len);
++ if (ret) {
++ printk(KERN_WARNING "Failed to allocate space for wbuf recovery. Data loss ensues.\n");
++ if (buf)
++ kfree(buf);
++ return;
++ }
++ if (end-start >= c->wbuf_pagesize) {
++ /* Need to do another write immediately. This, btw,
++ means that we'll be writing from 'buf' and not from
++ the wbuf. Since if we're writing from the wbuf there
++ won't be more than a wbuf full of data, now will
++ there? :) */
++
++ uint32_t towrite = (end-start) - ((end-start)%c->wbuf_pagesize);
++
++ D1(printk(KERN_DEBUG "Write 0x%x bytes at 0x%08x in wbuf recover\n",
++ towrite, ofs));
++
++#ifdef BREAKMEHEADER
++ static int breakme;
++ if (breakme++ == 20) {
++ printk(KERN_NOTICE "Faking write error at 0x%08x\n", ofs);
++ breakme = 0;
++ c->mtd->write_ecc(c->mtd, ofs, towrite, &retlen,
++ brokenbuf, NULL, c->oobinfo);
++ ret = -EIO;
++ } else
++#endif
++ ret = c->mtd->write_ecc(c->mtd, ofs, towrite, &retlen,
++ buf, NULL, c->oobinfo);
++
++ if (ret || retlen != towrite) {
++ /* Argh. We tried. Really we did. */
++ printk(KERN_CRIT "Recovery of wbuf failed due to a second write error\n");
++ kfree(buf);
++
++ if (retlen) {
++ struct jffs2_raw_node_ref *raw2;
++
++ raw2 = jffs2_alloc_raw_node_ref();
++ if (!raw2)
++ return;
++
++ raw2->flash_offset = ofs | REF_OBSOLETE;
++ raw2->__totlen = ref_totlen(c, jeb, *first_raw);
++ raw2->next_phys = NULL;
++ raw2->next_in_ino = NULL;
++
++ jffs2_add_physical_node_ref(c, raw2);
++ }
++ return;
++ }
++ printk(KERN_NOTICE "Recovery of wbuf succeeded to %08x\n", ofs);
++
++ c->wbuf_len = (end - start) - towrite;
++ c->wbuf_ofs = ofs + towrite;
++ memcpy(c->wbuf, buf + towrite, c->wbuf_len);
++ /* Don't muck about with c->wbuf_inodes. False positives are harmless. */
++
++ kfree(buf);
++ } else {
++ /* OK, now we're left with the dregs in whichever buffer we're using */
++ if (buf) {
++ memcpy(c->wbuf, buf, end-start);
++ kfree(buf);
++ } else {
++ memmove(c->wbuf, c->wbuf + (start - c->wbuf_ofs), end - start);
++ }
++ c->wbuf_ofs = ofs;
++ c->wbuf_len = end - start;
++ }
++
++ /* Now sort out the jffs2_raw_node_refs, moving them from the old to the next block */
++ new_jeb = &c->blocks[ofs / c->sector_size];
++
++ spin_lock(&c->erase_completion_lock);
++ if (new_jeb->first_node) {
++ /* Odd, but possible with ST flash later maybe */
++ new_jeb->last_node->next_phys = *first_raw;
++ } else {
++ new_jeb->first_node = *first_raw;
++ }
++
++ raw = first_raw;
++ while (*raw) {
++ uint32_t rawlen = ref_totlen(c, jeb, *raw);
++
++ D1(printk(KERN_DEBUG "Refiling block of %08x at %08x(%d) to %08x\n",
++ rawlen, ref_offset(*raw), ref_flags(*raw), ofs));
++
++ if (ref_obsolete(*raw)) {
++ /* Shouldn't really happen much */
++ new_jeb->dirty_size += rawlen;
++ new_jeb->free_size -= rawlen;
++ c->dirty_size += rawlen;
++ } else {
++ new_jeb->used_size += rawlen;
++ new_jeb->free_size -= rawlen;
++ jeb->dirty_size += rawlen;
++ jeb->used_size -= rawlen;
++ c->dirty_size += rawlen;
++ }
++ c->free_size -= rawlen;
++ (*raw)->flash_offset = ofs | ref_flags(*raw);
++ ofs += rawlen;
++ new_jeb->last_node = *raw;
++
++ raw = &(*raw)->next_phys;
++ }
++
++ /* Fix up the original jeb now it's on the bad_list */
++ *first_raw = NULL;
++ if (first_raw == &jeb->first_node) {
++ jeb->last_node = NULL;
++ D1(printk(KERN_DEBUG "Failing block at %08x is now empty. Moving to erase_pending_list\n", jeb->offset));
++ list_del(&jeb->list);
++ list_add(&jeb->list, &c->erase_pending_list);
++ c->nr_erasing_blocks++;
++ jffs2_erase_pending_trigger(c);
++ }
++ else
++ jeb->last_node = container_of(first_raw, struct jffs2_raw_node_ref, next_phys);
++
++ ACCT_SANITY_CHECK(c,jeb);
++ D1(ACCT_PARANOIA_CHECK(jeb));
++
++ ACCT_SANITY_CHECK(c,new_jeb);
++ D1(ACCT_PARANOIA_CHECK(new_jeb));
++
++ spin_unlock(&c->erase_completion_lock);
++
++ D1(printk(KERN_DEBUG "wbuf recovery completed OK\n"));
++}
++
++/* Meaning of pad argument:
++ 0: Do not pad. Probably pointless - we only ever use this when we can't pad anyway.
++ 1: Pad, do not adjust nextblock free_size
++ 2: Pad, adjust nextblock free_size
++*/
++static int __jffs2_flush_wbuf(struct jffs2_sb_info *c, int pad)
++{
++ int ret;
++ size_t retlen;
++
++ /* Nothing to do if not NAND flash. In particular, we shouldn't
++ del_timer() the timer we never initialised. */
++ if (jffs2_can_mark_obsolete(c))
++ return 0;
++
++ if (!down_trylock(&c->alloc_sem)) {
++ up(&c->alloc_sem);
++ printk(KERN_CRIT "jffs2_flush_wbuf() called with alloc_sem not locked!\n");
++ BUG();
++ }
++
++ if(!c->wbuf || !c->wbuf_len)
++ return 0;
++
++ /* claim remaining space on the page
++ this happens, if we have a change to a new block,
++ or if fsync forces us to flush the writebuffer.
++ if we have a switch to next page, we will not have
++ enough remaining space for this.
++ */
++ if (pad) {
++ c->wbuf_len = PAD(c->wbuf_len);
++
++ if ( c->wbuf_len + sizeof(struct jffs2_unknown_node) < c->wbuf_pagesize) {
++ struct jffs2_unknown_node *padnode = (void *)(c->wbuf + c->wbuf_len);
++ padnode->magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
++ padnode->nodetype = cpu_to_je16(JFFS2_NODETYPE_PADDING);
++ padnode->totlen = cpu_to_je32(c->wbuf_pagesize - c->wbuf_len);
++ padnode->hdr_crc = cpu_to_je32(crc32(0, padnode, sizeof(*padnode)-4));
++ }
++ }
++ /* else jffs2_flash_writev has actually filled in the rest of the
++ buffer for us, and will deal with the node refs etc. later. */
++
++#ifdef BREAKME
++ static int breakme;
++ if (breakme++ == 20) {
++ printk(KERN_NOTICE "Faking write error at 0x%08x\n", c->wbuf_ofs);
++ breakme = 0;
++ c->mtd->write_ecc(c->mtd, c->wbuf_ofs, c->wbuf_pagesize,
++ &retlen, brokenbuf, NULL, c->oobinfo);
++ ret = -EIO;
++ } else
++#endif
++ ret = c->mtd->write_ecc(c->mtd, c->wbuf_ofs, c->wbuf_pagesize, &retlen, c->wbuf, NULL, c->oobinfo);
++
++
++ if (ret || retlen != c->wbuf_pagesize) {
++ if (ret)
++ printk(KERN_WARNING "jffs2_flush_wbuf(): Write failed with %d\n",ret);
++ else {
++ printk(KERN_WARNING "jffs2_flush_wbuf(): Write was short: %zd instead of %d\n",
++ retlen, c->wbuf_pagesize);
++ ret = -EIO;
++ }
++
++ jffs2_wbuf_recover(c);
++
++ return ret;
++ }
++
++ /* Adjusting free size of next block only, if it's called from fsync ! */
++ if (pad == 2) {
++ D1(printk(KERN_DEBUG "jffs2_flush_wbuf() adjusting free_size of c->nextblock\n"));
++ spin_lock(&c->erase_completion_lock);
++ if (!c->nextblock)
++ BUG();
++ /* wbuf_pagesize - wbuf_len is the amount of space that's to be
++ padded. If there is less free space in the block than that,
++ something screwed up */
++ if (c->nextblock->free_size < (c->wbuf_pagesize - c->wbuf_len)) {
++ printk(KERN_CRIT "jffs2_flush_wbuf(): Accounting error. wbuf at 0x%08x has 0x%03x bytes, 0x%03x left.\n",
++ c->wbuf_ofs, c->wbuf_len, c->wbuf_pagesize-c->wbuf_len);
++ printk(KERN_CRIT "jffs2_flush_wbuf(): But free_size for block at 0x%08x is only 0x%08x\n",
++ c->nextblock->offset, c->nextblock->free_size);
++ BUG();
++ }
++ c->nextblock->free_size -= (c->wbuf_pagesize - c->wbuf_len);
++ c->free_size -= (c->wbuf_pagesize - c->wbuf_len);
++ c->nextblock->wasted_size += (c->wbuf_pagesize - c->wbuf_len);
++ c->wasted_size += (c->wbuf_pagesize - c->wbuf_len);
++ spin_unlock(&c->erase_completion_lock);
++ }
++
++ /* Stick any now-obsoleted blocks on the erase_pending_list */
++ spin_lock(&c->erase_completion_lock);
++ jffs2_refile_wbuf_blocks(c);
++ jffs2_clear_wbuf_ino_list(c);
++ spin_unlock(&c->erase_completion_lock);
++
++ memset(c->wbuf,0xff,c->wbuf_pagesize);
++ /* adjust write buffer offset, else we get a non contiguous write bug */
++ c->wbuf_ofs += c->wbuf_pagesize;
++ c->wbuf_len = 0;
++ return 0;
++}
++
++/* Trigger garbage collection to flush the write-buffer.
++ If ino arg is zero, do it if _any_ real (i.e. not GC) writes are
++ outstanding. If ino arg non-zero, do it only if a write for the
++ given inode is outstanding. */
++int jffs2_flush_wbuf_gc(struct jffs2_sb_info *c, uint32_t ino)
++{
++ uint32_t old_wbuf_ofs;
++ uint32_t old_wbuf_len;
++ int ret = 0;
++
++ D1(printk(KERN_DEBUG "jffs2_flush_wbuf_gc() called for ino #%u...\n", ino));
++
++ down(&c->alloc_sem);
++ if (!jffs2_wbuf_pending_for_ino(c, ino)) {
++ D1(printk(KERN_DEBUG "Ino #%d not pending in wbuf. Returning\n", ino));
++ up(&c->alloc_sem);
++ return 0;
++ }
++
++ old_wbuf_ofs = c->wbuf_ofs;
++ old_wbuf_len = c->wbuf_len;
++
++ if (c->unchecked_size) {
++ /* GC won't make any progress for a while */
++ D1(printk(KERN_DEBUG "jffs2_flush_wbuf_gc() padding. Not finished checking\n"));
++ ret = __jffs2_flush_wbuf(c, 2);
++ } else while (old_wbuf_len &&
++ old_wbuf_ofs == c->wbuf_ofs) {
++
++ up(&c->alloc_sem);
++
++ D1(printk(KERN_DEBUG "jffs2_flush_wbuf_gc() calls gc pass\n"));
++
++ ret = jffs2_garbage_collect_pass(c);
++ if (ret) {
++ /* GC failed. Flush it with padding instead */
++ down(&c->alloc_sem);
++ ret = __jffs2_flush_wbuf(c, 2);
++ break;
++ }
++ down(&c->alloc_sem);
++ }
++
++ D1(printk(KERN_DEBUG "jffs2_flush_wbuf_gc() ends...\n"));
++
++ up(&c->alloc_sem);
++ return ret;
++}
++
++/* Pad write-buffer to end and write it, wasting space. */
++int jffs2_flush_wbuf_pad(struct jffs2_sb_info *c)
++{
++ return __jffs2_flush_wbuf(c, 1);
++}
++
++
++#define PAGE_DIV(x) ( (x) & (~(c->wbuf_pagesize - 1)) )
++#define PAGE_MOD(x) ( (x) & (c->wbuf_pagesize - 1) )
++int jffs2_flash_writev(struct jffs2_sb_info *c, const struct iovec *invecs, unsigned long count, loff_t to, size_t *retlen, uint32_t ino)
++{
++ struct iovec outvecs[3];
++ uint32_t totlen = 0;
++ uint32_t split_ofs = 0;
++ uint32_t old_totlen;
++ int ret, splitvec = -1;
++ int invec, outvec;
++ size_t wbuf_retlen;
++ unsigned char *wbuf_ptr;
++ size_t donelen = 0;
++ uint32_t outvec_to = to;
++
++ /* If not NAND flash, don't bother */
++ if (!c->wbuf)
++ return jffs2_flash_direct_writev(c, invecs, count, to, retlen);
++
++ /* If wbuf_ofs is not initialized, set it to target address */
++ if (c->wbuf_ofs == 0xFFFFFFFF) {
++ c->wbuf_ofs = PAGE_DIV(to);
++ c->wbuf_len = PAGE_MOD(to);
++ memset(c->wbuf,0xff,c->wbuf_pagesize);
++ }
++
++ /* Sanity checks on target address.
++ It's permitted to write at PAD(c->wbuf_len+c->wbuf_ofs),
++ and it's permitted to write at the beginning of a new
++ erase block. Anything else, and you die.
++ New block starts at xxx000c (0-b = block header)
++ */
++ if ( (to & ~(c->sector_size-1)) != (c->wbuf_ofs & ~(c->sector_size-1)) ) {
++ /* It's a write to a new block */
++ if (c->wbuf_len) {
++ D1(printk(KERN_DEBUG "jffs2_flash_writev() to 0x%lx causes flush of wbuf at 0x%08x\n", (unsigned long)to, c->wbuf_ofs));
++ ret = jffs2_flush_wbuf_pad(c);
++ if (ret) {
++ /* the underlying layer has to check wbuf_len to do the cleanup */
++ D1(printk(KERN_WARNING "jffs2_flush_wbuf() called from jffs2_flash_writev() failed %d\n", ret));
++ *retlen = 0;
++ return ret;
++ }
++ }
++ /* set pointer to new block */
++ c->wbuf_ofs = PAGE_DIV(to);
++ c->wbuf_len = PAGE_MOD(to);
++ }
++
++ if (to != PAD(c->wbuf_ofs + c->wbuf_len)) {
++ /* We're not writing immediately after the writebuffer. Bad. */
++ printk(KERN_CRIT "jffs2_flash_writev(): Non-contiguous write to %08lx\n", (unsigned long)to);
++ if (c->wbuf_len)
++ printk(KERN_CRIT "wbuf was previously %08x-%08x\n",
++ c->wbuf_ofs, c->wbuf_ofs+c->wbuf_len);
++ BUG();
++ }
++
++ /* Note outvecs[3] above. We know count is never greater than 2 */
++ if (count > 2) {
++ printk(KERN_CRIT "jffs2_flash_writev(): count is %ld\n", count);
++ BUG();
++ }
++
++ invec = 0;
++ outvec = 0;
++
++
++ /* Fill writebuffer first, if already in use */
++ if (c->wbuf_len) {
++ uint32_t invec_ofs = 0;
++
++ /* adjust alignment offset */
++ if (c->wbuf_len != PAGE_MOD(to)) {
++ c->wbuf_len = PAGE_MOD(to);
++ /* take care of alignment to next page */
++ if (!c->wbuf_len)
++ c->wbuf_len = c->wbuf_pagesize;
++ }
++
++ while(c->wbuf_len < c->wbuf_pagesize) {
++ uint32_t thislen;
++
++ if (invec == count)
++ goto alldone;
++
++ thislen = c->wbuf_pagesize - c->wbuf_len;
++
++ if (thislen >= invecs[invec].iov_len)
++ thislen = invecs[invec].iov_len;
++
++ invec_ofs = thislen;
++
++ memcpy(c->wbuf + c->wbuf_len, invecs[invec].iov_base, thislen);
++ c->wbuf_len += thislen;
++ donelen += thislen;
++ /* Get next invec, if actual did not fill the buffer */
++ if (c->wbuf_len < c->wbuf_pagesize)
++ invec++;
++ }
++
++ /* write buffer is full, flush buffer */
++ ret = __jffs2_flush_wbuf(c, 0);
++ if (ret) {
++ /* the underlying layer has to check wbuf_len to do the cleanup */
++ D1(printk(KERN_WARNING "jffs2_flush_wbuf() called from jffs2_flash_writev() failed %d\n", ret));
++ /* Retlen zero to make sure our caller doesn't mark the space dirty.
++ We've already done everything that's necessary */
++ *retlen = 0;
++ return ret;
++ }
++ outvec_to += donelen;
++ c->wbuf_ofs = outvec_to;
++
++ /* All invecs done ? */
++ if (invec == count)
++ goto alldone;
++
++ /* Set up the first outvec, containing the remainder of the
++ invec we partially used */
++ if (invecs[invec].iov_len > invec_ofs) {
++ outvecs[0].iov_base = invecs[invec].iov_base+invec_ofs;
++ totlen = outvecs[0].iov_len = invecs[invec].iov_len-invec_ofs;
++ if (totlen > c->wbuf_pagesize) {
++ splitvec = outvec;
++ split_ofs = outvecs[0].iov_len - PAGE_MOD(totlen);
++ }
++ outvec++;
++ }
++ invec++;
++ }
++
++ /* OK, now we've flushed the wbuf and the start of the bits
++ we have been asked to write, now to write the rest.... */
++
++ /* totlen holds the amount of data still to be written */
++ old_totlen = totlen;
++ for ( ; invec < count; invec++,outvec++ ) {
++ outvecs[outvec].iov_base = invecs[invec].iov_base;
++ totlen += outvecs[outvec].iov_len = invecs[invec].iov_len;
++ if (PAGE_DIV(totlen) != PAGE_DIV(old_totlen)) {
++ splitvec = outvec;
++ split_ofs = outvecs[outvec].iov_len - PAGE_MOD(totlen);
++ old_totlen = totlen;
++ }
++ }
++
++ /* Now the outvecs array holds all the remaining data to write */
++ /* Up to splitvec,split_ofs is to be written immediately. The rest
++ goes into the (now-empty) wbuf */
++
++ if (splitvec != -1) {
++ uint32_t remainder;
++ int ret;
++
++ remainder = outvecs[splitvec].iov_len - split_ofs;
++ outvecs[splitvec].iov_len = split_ofs;
++
++ /* We did cross a page boundary, so we write some now */
++ ret = c->mtd->writev_ecc(c->mtd, outvecs, splitvec+1, outvec_to, &wbuf_retlen, NULL, c->oobinfo);
++ if (ret < 0 || wbuf_retlen != PAGE_DIV(totlen)) {
++ /* At this point we have no problem,
++ c->wbuf is empty.
++ */
++ *retlen = donelen;
++ return ret;
++ }
++
++ donelen += wbuf_retlen;
++ c->wbuf_ofs = PAGE_DIV(outvec_to) + PAGE_DIV(totlen);
++
++ if (remainder) {
++ outvecs[splitvec].iov_base += split_ofs;
++ outvecs[splitvec].iov_len = remainder;
++ } else {
++ splitvec++;
++ }
++
++ } else {
++ splitvec = 0;
++ }
++
++ /* Now splitvec points to the start of the bits we have to copy
++ into the wbuf */
++ wbuf_ptr = c->wbuf;
++
++ for ( ; splitvec < outvec; splitvec++) {
++ /* Don't copy the wbuf into itself */
++ if (outvecs[splitvec].iov_base == c->wbuf)
++ continue;
++ memcpy(wbuf_ptr, outvecs[splitvec].iov_base, outvecs[splitvec].iov_len);
++ wbuf_ptr += outvecs[splitvec].iov_len;
++ donelen += outvecs[splitvec].iov_len;
++ }
++ c->wbuf_len = wbuf_ptr - c->wbuf;
++
++ /* If there's a remainder in the wbuf and it's a non-GC write,
++ remember that the wbuf affects this ino */
++alldone:
++ *retlen = donelen;
++
++ if (c->wbuf_len && ino)
++ jffs2_wbuf_dirties_inode(c, ino);
++
++ return 0;
++}
++
++/*
++ * This is the entry for flash write.
++ * Check, if we work on NAND FLASH, if so build an iovec and write it via vritev
++*/
++int jffs2_flash_write(struct jffs2_sb_info *c, loff_t ofs, size_t len, size_t *retlen, const u_char *buf)
++{
++ struct iovec vecs[1];
++
++ if (jffs2_can_mark_obsolete(c))
++ return c->mtd->write(c->mtd, ofs, len, retlen, buf);
++
++ vecs[0].iov_base = (unsigned char *) buf;
++ vecs[0].iov_len = len;
++ return jffs2_flash_writev(c, vecs, 1, ofs, retlen, 0);
++}
++
++/*
++ Handle readback from writebuffer and ECC failure return
++*/
++int jffs2_flash_read(struct jffs2_sb_info *c, loff_t ofs, size_t len, size_t *retlen, u_char *buf)
++{
++ loff_t orbf = 0, owbf = 0, lwbf = 0;
++ int ret;
++
++ /* Read flash */
++ if (!jffs2_can_mark_obsolete(c)) {
++ ret = c->mtd->read_ecc(c->mtd, ofs, len, retlen, buf, NULL, c->oobinfo);
++
++ if ( (ret == -EIO) && (*retlen == len) ) {
++ printk(KERN_WARNING "mtd->read(0x%zx bytes from 0x%llx) returned ECC error\n",
++ len, ofs);
++ /*
++ * We have the raw data without ECC correction in the buffer, maybe
++ * we are lucky and all data or parts are correct. We check the node.
++ * If data are corrupted node check will sort it out.
++ * We keep this block, it will fail on write or erase and the we
++ * mark it bad. Or should we do that now? But we should give him a chance.
++ * Maybe we had a system crash or power loss before the ecc write or
++ * a erase was completed.
++ * So we return success. :)
++ */
++ ret = 0;
++ }
++ } else
++ return c->mtd->read(c->mtd, ofs, len, retlen, buf);
++
++ /* if no writebuffer available or write buffer empty, return */
++ if (!c->wbuf_pagesize || !c->wbuf_len)
++ return ret;
++
++ /* if we read in a different block, return */
++ if ( (ofs & ~(c->sector_size-1)) != (c->wbuf_ofs & ~(c->sector_size-1)) )
++ return ret;
++
++ if (ofs >= c->wbuf_ofs) {
++ owbf = (ofs - c->wbuf_ofs); /* offset in write buffer */
++ if (owbf > c->wbuf_len) /* is read beyond write buffer ? */
++ return ret;
++ lwbf = c->wbuf_len - owbf; /* number of bytes to copy */
++ if (lwbf > len)
++ lwbf = len;
++ } else {
++ orbf = (c->wbuf_ofs - ofs); /* offset in read buffer */
++ if (orbf > len) /* is write beyond write buffer ? */
++ return ret;
++ lwbf = len - orbf; /* number of bytes to copy */
++ if (lwbf > c->wbuf_len)
++ lwbf = c->wbuf_len;
++ }
++ if (lwbf > 0)
++ memcpy(buf+orbf,c->wbuf+owbf,lwbf);
++
++ return ret;
++}
++
++/*
++ * Check, if the out of band area is empty
++ */
++int jffs2_check_oob_empty( struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb, int mode)
++{
++ unsigned char *buf;
++ int ret = 0;
++ int i,len,page;
++ size_t retlen;
++ int oob_size;
++
++ oob_size = c->mtd->oobsize;
++
++ /* allocate a buffer for all oob data in this sector */
++ len = 4 * oob_size;
++ buf = kmalloc(len, GFP_KERNEL);
++ if (!buf) {
++ printk(KERN_NOTICE "jffs2_check_oob_empty(): allocation of temporary data buffer for oob check failed\n");
++ return -ENOMEM;
++ }
++ /*
++ * if mode = 0, we scan for a total empty oob area, else we have
++ * to take care of the cleanmarker in the first page of the block
++ */
++ ret = jffs2_flash_read_oob(c, jeb->offset, len , &retlen, buf);
++ if (ret) {
++ D1(printk(KERN_WARNING "jffs2_check_oob_empty(): Read OOB failed %d for block at %08x\n", ret, jeb->offset));
++ goto out;
++ }
++
++ if (retlen < len) {
++ D1(printk(KERN_WARNING "jffs2_check_oob_empty(): Read OOB return short read "
++ "(%zd bytes not %d) for block at %08x\n", retlen, len, jeb->offset));
++ ret = -EIO;
++ goto out;
++ }
++
++ /* Special check for first two pages */
++ for (page = 0; page < 2 * oob_size; page += oob_size) {
++ /* Check for bad block marker */
++ if (buf[page+c->badblock_pos] != 0xff) {
++ D1(printk(KERN_WARNING "jffs2_check_oob_empty(): Bad or failed block at %08x\n",jeb->offset));
++ /* Return 2 for bad and 3 for failed block
++ bad goes to list_bad and failed to list_erase */
++ ret = (!page) ? 2 : 3;
++ goto out;
++ }
++ for(i = 0; i < oob_size ; i++) {
++ /* Yeah, we know about the cleanmarker. */
++ if (mode && i >= c->fsdata_pos &&
++ i < c->fsdata_pos+c->fsdata_len)
++ continue;
++
++ if (buf[page+i] != 0xFF) {
++ D2(printk(KERN_DEBUG "Found %02x at %x in OOB for %08x\n",
++ buf[page+i], page+i, jeb->offset));
++ ret = 1;
++ goto out;
++ }
++ }
++ /* only the first page can contain a cleanmarker !*/
++ mode = 0;
++ }
++
++ /* we know, we are aligned :) */
++ for (; page < len; page += sizeof(long)) {
++ unsigned long dat = *(unsigned long *)(&buf[page]);
++ if(dat != -1) {
++ ret = 1;
++ goto out;
++ }
++ }
++
++out:
++ kfree(buf);
++
++ return ret;
++}
++
++/*
++* Scan for a valid cleanmarker and for bad blocks
++* For virtual blocks (concatenated physical blocks) check the cleanmarker
++* only in the first page of the first physical block, but scan for bad blocks in all
++* physical blocks
++*/
++int jffs2_check_nand_cleanmarker (struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb)
++{
++ struct jffs2_unknown_node n;
++ unsigned char buf[32];
++ unsigned char *p;
++ int ret, i, cnt, retval = 0;
++ size_t retlen, offset;
++ int oob_size;
++
++ offset = jeb->offset;
++ oob_size = c->mtd->oobsize;
++
++ /* Loop through the physical blocks */
++ for (cnt = 0; cnt < (c->sector_size / c->mtd->erasesize); cnt++) {
++ /*
++ * We read oob data from page 0 and 1 of the block.
++ * page 0 contains cleanmarker and badblock info
++ * page 1 contains failure count of this block
++ */
++ ret = c->mtd->read_oob (c->mtd, offset, oob_size << 1, &retlen, buf);
++
++ if (ret) {
++ D1 (printk (KERN_WARNING "jffs2_check_nand_cleanmarker(): Read OOB failed %d for block at %08x\n", ret, jeb->offset));
++ return ret;
++ }
++ if (retlen < (oob_size << 1)) {
++ D1 (printk (KERN_WARNING "jffs2_check_nand_cleanmarker(): Read OOB return short read (%zd bytes not %d) for block at %08x\n", retlen, oob_size << 1, jeb->offset));
++ return -EIO;
++ }
++
++ /* Check for bad block marker */
++ if (buf[c->badblock_pos] != 0xff) {
++ D1 (printk (KERN_WARNING "jffs2_check_nand_cleanmarker(): Bad block at %08x (has %02x %02x in badblock_pos %d\n",
++ jeb->offset, buf[c->badblock_pos], buf[c->badblock_pos + oob_size], c->badblock_pos));
++ return 2;
++ }
++
++ /* Check for failure counter in the second page */
++ if (buf[c->badblock_pos + oob_size] != 0xff) {
++ D1 (printk (KERN_WARNING "jffs2_check_nand_cleanmarker(): Block marked as failed at %08x, fail count:%d\n", jeb->offset, buf[c->badblock_pos + oob_size]));
++ return 3;
++ }
++
++ /* Check cleanmarker only on the first physical block */
++ if (!cnt) {
++ n.magic = cpu_to_je16 (JFFS2_MAGIC_BITMASK);
++ n.nodetype = cpu_to_je16 (JFFS2_NODETYPE_CLEANMARKER);
++ n.totlen = cpu_to_je32 (8);
++ p = (unsigned char *) &n;
++
++ for (i = 0; i < c->fsdata_len; i++) {
++ if (buf[c->fsdata_pos + i] != p[i]) {
++ retval = 1;
++ }
++ }
++ D1(if (retval == 1) {
++ printk(KERN_WARNING "jffs2_check_nand_cleanmarker(): Cleanmarker node not detected in block at %08x\n", jeb->offset);
++ printk(KERN_WARNING "OOB at %08x was ", offset);
++ for (i=0; i < oob_size; i++) {
++ printk("%02x ", buf[i]);
++ }
++ printk("\n");
++ })
++ }
++ offset += c->mtd->erasesize;
++ }
++ return retval;
++}
++
++int jffs2_write_nand_cleanmarker(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb)
++{
++ struct jffs2_unknown_node n;
++ int ret;
++ size_t retlen;
++
++ n.magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
++ n.nodetype = cpu_to_je16(JFFS2_NODETYPE_CLEANMARKER);
++ n.totlen = cpu_to_je32(8);
++
++ ret = jffs2_flash_write_oob(c, jeb->offset + c->fsdata_pos, c->fsdata_len, &retlen, (unsigned char *)&n);
++
++ if (ret) {
++ D1(printk(KERN_WARNING "jffs2_write_nand_cleanmarker(): Write failed for block at %08x: error %d\n", jeb->offset, ret));
++ return ret;
++ }
++ if (retlen != c->fsdata_len) {
++ D1(printk(KERN_WARNING "jffs2_write_nand_cleanmarker(): Short write for block at %08x: %zd not %d\n", jeb->offset, retlen, c->fsdata_len));
++ return ret;
++ }
++ return 0;
++}
++
++/*
++ * We try to get the failure count of this block.
++ */
++int jffs2_nand_read_failcnt(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb) {
++
++ unsigned char buf[16];
++ int ret;
++ size_t retlen;
++ int oob_size;
++
++ oob_size = c->mtd->oobsize;
++
++ ret = c->mtd->read_oob(c->mtd, jeb->offset + c->mtd->oobblock, oob_size , &retlen, buf);
++
++ if (ret) {
++ D1(printk(KERN_WARNING "jffs2_nand_read_failcnt(): Read OOB failed %d for block at %08x\n", ret, jeb->offset));
++ return ret;
++ }
++
++ if (retlen < oob_size) {
++ D1(printk(KERN_WARNING "jffs2_nand_read_failcnt(): Read OOB return short read (%zd bytes not %d) for block at %08x\n", retlen, oob_size, jeb->offset));
++ return -EIO;
++ }
++
++ jeb->bad_count = buf[c->badblock_pos];
++ return 0;
++}
++
++/*
++ * On NAND we try to mark this block bad. We try to write how often
++ * the block was erased and mark it finaly bad, if the count
++ * is > MAX_ERASE_FAILURES. We read this information on mount !
++ * jeb->bad_count contains the count before this erase.
++ * Don't care about failures. This block remains on the erase-pending
++ * or badblock list as long as nobody manipulates the flash with
++ * a bootloader or something like that.
++ */
++
++int jffs2_write_nand_badblock(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb)
++{
++ unsigned char buf = 0x0;
++ int ret;
++ size_t retlen;
++
++ /* if the count is < max, we try to write the counter to the 2nd page oob area */
++ if( ++jeb->bad_count < MAX_ERASE_FAILURES) {
++ buf = (unsigned char)jeb->bad_count;
++ c->badblock_pos += c->mtd->oobblock;
++ }
++
++ ret = jffs2_flash_write_oob(c, jeb->offset + c->badblock_pos, 1, &retlen, &buf);
++
++ if (ret) {
++ D1(printk(KERN_WARNING "jffs2_write_nand_badblock(): Write failed for block at %08x: error %d\n", jeb->offset, ret));
++ return ret;
++ }
++ if (retlen != 1) {
++ D1(printk(KERN_WARNING "jffs2_write_nand_badblock(): Short write for block at %08x: %zd not 1\n", jeb->offset, retlen));
++ return ret;
++ }
++ return 0;
++}
++
++#define JFFS2_OOB_ECCPOS0 0
++#define JFFS2_OOB_ECCPOS1 1
++#define JFFS2_OOB_ECCPOS2 2
++#define JFFS2_OOB_ECCPOS3 3
++#define JFFS2_OOB_ECCPOS4 6
++#define JFFS2_OOB_ECCPOS5 7
++
++#define NAND_JFFS2_OOB8_FSDAPOS 6
++#define NAND_JFFS2_OOB16_FSDAPOS 8
++#define NAND_JFFS2_OOB8_FSDALEN 2
++#define NAND_JFFS2_OOB16_FSDALEN 8
++
++static struct nand_oobinfo jffs2_oobinfo_swecc = {
++ .useecc = 1,
++ .eccpos = {JFFS2_OOB_ECCPOS0, JFFS2_OOB_ECCPOS1, JFFS2_OOB_ECCPOS2,
++ JFFS2_OOB_ECCPOS3, JFFS2_OOB_ECCPOS4, JFFS2_OOB_ECCPOS5}
++};
++
++static struct nand_oobinfo jffs2_oobinfo_docecc = {
++ .useecc = 1,
++ .eccpos = {0,1,2,3,4,5}
++};
++
++
++
++int jffs2_nand_flash_setup(struct jffs2_sb_info *c)
++{
++ /* Cleanmarker is out-of-band, so inline size zero */
++ c->cleanmarker_size = 0;
++
++ /* Initialise write buffer */
++ c->wbuf_pagesize = c->mtd->oobblock;
++ c->wbuf_ofs = 0xFFFFFFFF;
++
++ /* FIXME: If we had a generic way of describing the hardware's
++ use of OOB area, we could perhaps make this generic too. */
++ switch(c->mtd->ecctype) {
++ case MTD_ECC_SW:
++ D1(printk(KERN_DEBUG "JFFS2 using software ECC\n"));
++ c->oobinfo = &jffs2_oobinfo_swecc;
++ if (c->mtd->oobsize == 8) {
++ c->fsdata_pos = NAND_JFFS2_OOB8_FSDAPOS;
++ c->fsdata_len = NAND_JFFS2_OOB8_FSDALEN;
++ } else {
++ c->fsdata_pos = NAND_JFFS2_OOB16_FSDAPOS;
++ c->fsdata_len = NAND_JFFS2_OOB16_FSDALEN;
++ }
++ c->badblock_pos = NAND_BADBLOCK_POS;
++ break;
++
++ case MTD_ECC_RS_DiskOnChip:
++ D1(printk(KERN_DEBUG "JFFS2 using DiskOnChip hardware ECC\n"));
++ c->oobinfo = &jffs2_oobinfo_docecc;
++ c->fsdata_pos = 6;
++ c->fsdata_len = NAND_JFFS2_OOB16_FSDALEN;
++ c->badblock_pos = 15;
++ break;
++
++ default:
++ printk("JFFS2 doesn't yet know how to handle ECC type %d\n",
++ c->mtd->ecctype);
++ return -EINVAL;
++ }
++
++ c->wbuf = kmalloc(c->wbuf_pagesize, GFP_KERNEL);
++ if (!c->wbuf)
++ return -ENOMEM;
++
++#ifdef BREAKME
++ if (!brokenbuf)
++ brokenbuf = kmalloc(c->wbuf_pagesize, GFP_KERNEL);
++ if (!brokenbuf) {
++ kfree(c->wbuf);
++ return -ENOMEM;
++ }
++ memset(brokenbuf, 0xdb, c->wbuf_pagesize);
++#endif
++ return 0;
++}
++
++void jffs2_nand_flash_cleanup(struct jffs2_sb_info *c)
++{
++ kfree(c->wbuf);
++}
+diff -Nurb linux-mips-2.4.27/fs/jffs2/write.c linux/fs/jffs2/write.c
+--- linux-mips-2.4.27/fs/jffs2/write.c 2003-11-17 02:07:44.000000000 +0100
++++ linux/fs/jffs2/write.c 2004-11-19 10:25:12.132164376 +0100
+@@ -1,154 +1,70 @@
+ /*
+ * JFFS2 -- Journalling Flash File System, Version 2.
+ *
+- * Copyright (C) 2001 Red Hat, Inc.
++ * Copyright (C) 2001-2003 Red Hat, Inc.
+ *
+- * Created by David Woodhouse <dwmw2@cambridge.redhat.com>
++ * Created by David Woodhouse <dwmw2@redhat.com>
+ *
+- * The original JFFS, from which the design for JFFS2 was derived,
+- * was designed and implemented by Axis Communications AB.
++ * For licensing information, see the file 'LICENCE' in this directory.
+ *
+- * The contents of this file are subject to the Red Hat eCos Public
+- * License Version 1.1 (the "Licence"); you may not use this file
+- * except in compliance with the Licence. You may obtain a copy of
+- * the Licence at http://www.redhat.com/
+- *
+- * Software distributed under the Licence is distributed on an "AS IS"
+- * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
+- * See the Licence for the specific language governing rights and
+- * limitations under the Licence.
+- *
+- * The Original Code is JFFS2 - Journalling Flash File System, version 2
+- *
+- * Alternatively, the contents of this file may be used under the
+- * terms of the GNU General Public License version 2 (the "GPL"), in
+- * which case the provisions of the GPL are applicable instead of the
+- * above. If you wish to allow the use of your version of this file
+- * only under the terms of the GPL and not to allow others to use your
+- * version of this file under the RHEPL, indicate your decision by
+- * deleting the provisions above and replace them with the notice and
+- * other provisions required by the GPL. If you do not delete the
+- * provisions above, a recipient may use your version of this file
+- * under either the RHEPL or the GPL.
+- *
+- * $Id: write.c,v 1.30.2.2 2003/11/02 13:51:18 dwmw2 Exp $
++ * $Id: write.c,v 1.80 2004/01/27 13:21:50 dwmw2 Exp $
+ *
+ */
+
+ #include <linux/kernel.h>
+ #include <linux/fs.h>
+-#include <linux/jffs2.h>
++#include <linux/crc32.h>
++#include <linux/slab.h>
++#include <linux/pagemap.h>
+ #include <linux/mtd/mtd.h>
+ #include "nodelist.h"
+-#include <linux/crc32.h>
+
+-/* jffs2_new_inode: allocate a new inode and inocache, add it to the hash,
+- fill in the raw_inode while you're at it. */
+-struct inode *jffs2_new_inode (struct inode *dir_i, int mode, struct jffs2_raw_inode *ri)
++
++int jffs2_do_new_inode(struct jffs2_sb_info *c, struct jffs2_inode_info *f, uint32_t mode, struct jffs2_raw_inode *ri)
+ {
+- struct inode *inode;
+- struct super_block *sb = dir_i->i_sb;
+ struct jffs2_inode_cache *ic;
+- struct jffs2_sb_info *c;
+- struct jffs2_inode_info *f;
+-
+- D1(printk(KERN_DEBUG "jffs2_new_inode(): dir_i %ld, mode 0x%x\n", dir_i->i_ino, mode));
+-
+- c = JFFS2_SB_INFO(sb);
+- memset(ri, 0, sizeof(*ri));
+
+ ic = jffs2_alloc_inode_cache();
+ if (!ic) {
+- return ERR_PTR(-ENOMEM);
++ return -ENOMEM;
+ }
+- memset(ic, 0, sizeof(*ic));
+-
+- inode = new_inode(sb);
+
+- if (!inode) {
+- jffs2_free_inode_cache(ic);
+- return ERR_PTR(-ENOMEM);
+- }
+-
+- /* Alloc jffs2_inode_info when that's split in 2.5 */
++ memset(ic, 0, sizeof(*ic));
+
+- f = JFFS2_INODE_INFO(inode);
+- memset(f, 0, sizeof(*f));
+ init_MUTEX_LOCKED(&f->sem);
+ f->inocache = ic;
+- inode->i_nlink = f->inocache->nlink = 1;
++ f->inocache->nlink = 1;
+ f->inocache->nodes = (struct jffs2_raw_node_ref *)f->inocache;
+- f->inocache->ino = ri->ino = inode->i_ino = ++c->highest_ino;
+- D1(printk(KERN_DEBUG "jffs2_new_inode(): Assigned ino# %d\n", ri->ino));
+- jffs2_add_ino_cache(c, f->inocache);
++ f->inocache->ino = ++c->highest_ino;
++ f->inocache->state = INO_STATE_PRESENT;
+
+- ri->magic = JFFS2_MAGIC_BITMASK;
+- ri->nodetype = JFFS2_NODETYPE_INODE;
+- ri->totlen = PAD(sizeof(*ri));
+- ri->hdr_crc = crc32(0, ri, sizeof(struct jffs2_unknown_node)-4);
+- ri->mode = mode;
+- f->highest_version = ri->version = 1;
+- ri->uid = current->fsuid;
+- if (dir_i->i_mode & S_ISGID) {
+- ri->gid = dir_i->i_gid;
+- if (S_ISDIR(mode))
+- ri->mode |= S_ISGID;
+- } else {
+- ri->gid = current->fsgid;
+- }
+- inode->i_mode = ri->mode;
+- inode->i_gid = ri->gid;
+- inode->i_uid = ri->uid;
+- inode->i_atime = inode->i_ctime = inode->i_mtime =
+- ri->atime = ri->mtime = ri->ctime = CURRENT_TIME;
+- inode->i_blksize = PAGE_SIZE;
+- inode->i_blocks = 0;
+- inode->i_size = 0;
++ ri->ino = cpu_to_je32(f->inocache->ino);
+
+- insert_inode_hash(inode);
++ D1(printk(KERN_DEBUG "jffs2_do_new_inode(): Assigned ino# %d\n", f->inocache->ino));
++ jffs2_add_ino_cache(c, f->inocache);
+
+- return inode;
+-}
++ ri->magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
++ ri->nodetype = cpu_to_je16(JFFS2_NODETYPE_INODE);
++ ri->totlen = cpu_to_je32(PAD(sizeof(*ri)));
++ ri->hdr_crc = cpu_to_je32(crc32(0, ri, sizeof(struct jffs2_unknown_node)-4));
++ ri->mode = cpu_to_jemode(mode);
+
+-/* This ought to be in core MTD code. All registered MTD devices
+- without writev should have this put in place. Bug the MTD
+- maintainer */
+-static int mtd_fake_writev(struct mtd_info *mtd, const struct iovec *vecs, unsigned long count, loff_t to, size_t *retlen)
+-{
+- unsigned long i;
+- size_t totlen = 0, thislen;
+- int ret = 0;
++ f->highest_version = 1;
++ ri->version = cpu_to_je32(f->highest_version);
+
+- for (i=0; i<count; i++) {
+- ret = mtd->write(mtd, to, vecs[i].iov_len, &thislen, vecs[i].iov_base);
+- totlen += thislen;
+- if (ret || thislen != vecs[i].iov_len)
+- break;
+- to += vecs[i].iov_len;
+- }
+- if (retlen)
+- *retlen = totlen;
+- return ret;
+-}
+-
+-
+-static inline int mtd_writev(struct mtd_info *mtd, const struct iovec *vecs, unsigned long count, loff_t to, size_t *retlen)
+-{
+- if (mtd->writev)
+- return mtd->writev(mtd,vecs,count,to,retlen);
+- else
+- return mtd_fake_writev(mtd, vecs, count, to, retlen);
++ return 0;
+ }
+
+-static void writecheck(struct mtd_info *mtd, __u32 ofs)
++#if CONFIG_JFFS2_FS_DEBUG > 0
++static void writecheck(struct jffs2_sb_info *c, uint32_t ofs)
+ {
+ unsigned char buf[16];
+- ssize_t retlen;
++ size_t retlen;
+ int ret, i;
+
+- ret = mtd->read(mtd, ofs, 16, &retlen, buf);
+- if (ret && retlen != 16) {
+- D1(printk(KERN_DEBUG "read failed or short in writecheck(). ret %d, retlen %d\n", ret, retlen));
++ ret = jffs2_flash_read(c, ofs, 16, &retlen, buf);
++ if (ret || (retlen != 16)) {
++ D1(printk(KERN_DEBUG "read failed or short in writecheck(). ret %d, retlen %zd\n", ret, retlen));
+ return;
+ }
+ ret = 0;
+@@ -157,32 +73,31 @@
+ ret = 1;
+ }
+ if (ret) {
+- printk(KERN_WARNING "ARGH. About to write node to 0x%08x on flash, but there's data already there:\n", ofs);
++ printk(KERN_WARNING "ARGH. About to write node to 0x%08x on flash, but there are data already there:\n", ofs);
+ printk(KERN_WARNING "0x%08x: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n",
+ ofs,
+ buf[0], buf[1], buf[2], buf[3], buf[4], buf[5], buf[6], buf[7],
+ buf[8], buf[9], buf[10], buf[11], buf[12], buf[13], buf[14], buf[15]);
+ }
+ }
+-
+-
++#endif
+
+
+ /* jffs2_write_dnode - given a raw_inode, allocate a full_dnode for it,
+ write it to the flash, link it into the existing inode/fragment list */
+
+-struct jffs2_full_dnode *jffs2_write_dnode(struct inode *inode, struct jffs2_raw_inode *ri, const unsigned char *data, __u32 datalen, __u32 flash_ofs, __u32 *writelen)
++struct jffs2_full_dnode *jffs2_write_dnode(struct jffs2_sb_info *c, struct jffs2_inode_info *f, struct jffs2_raw_inode *ri, const unsigned char *data, uint32_t datalen, uint32_t flash_ofs, int alloc_mode)
+
+ {
+- struct jffs2_sb_info *c = JFFS2_SB_INFO(inode->i_sb);
+- struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode);
+ struct jffs2_raw_node_ref *raw;
+ struct jffs2_full_dnode *fn;
+- ssize_t retlen;
++ size_t retlen;
+ struct iovec vecs[2];
+ int ret;
++ int retried = 0;
++ unsigned long cnt = 2;
+
+- D1(if(ri->hdr_crc != crc32(0, ri, sizeof(struct jffs2_unknown_node)-4)) {
++ D1(if(je32_to_cpu(ri->hdr_crc) != crc32(0, ri, sizeof(struct jffs2_unknown_node)-4)) {
+ printk(KERN_CRIT "Eep. CRC not correct in jffs2_write_dnode()\n");
+ BUG();
+ }
+@@ -192,10 +107,10 @@
+ vecs[1].iov_base = (unsigned char *)data;
+ vecs[1].iov_len = datalen;
+
+- writecheck(c->mtd, flash_ofs);
++ D1(writecheck(c, flash_ofs));
+
+- if (ri->totlen != sizeof(*ri) + datalen) {
+- printk(KERN_WARNING "jffs2_write_dnode: ri->totlen (0x%08x) != sizeof(*ri) (0x%08x) + datalen (0x%08x)\n", ri->totlen, sizeof(*ri), datalen);
++ if (je32_to_cpu(ri->totlen) != sizeof(*ri) + datalen) {
++ printk(KERN_WARNING "jffs2_write_dnode: ri->totlen (0x%08x) != sizeof(*ri) (0x%08zx) + datalen (0x%08x)\n", je32_to_cpu(ri->totlen), sizeof(*ri), datalen);
+ }
+ raw = jffs2_alloc_raw_node_ref();
+ if (!raw)
+@@ -206,19 +121,28 @@
+ jffs2_free_raw_node_ref(raw);
+ return ERR_PTR(-ENOMEM);
+ }
+- raw->flash_offset = flash_ofs;
+- raw->totlen = PAD(ri->totlen);
+- raw->next_phys = NULL;
+
+- fn->ofs = ri->offset;
+- fn->size = ri->dsize;
++ fn->ofs = je32_to_cpu(ri->offset);
++ fn->size = je32_to_cpu(ri->dsize);
+ fn->frags = 0;
++
++ /* check number of valid vecs */
++ if (!datalen || !data)
++ cnt = 1;
++ retry:
+ fn->raw = raw;
+
+- ret = mtd_writev(c->mtd, vecs, 2, flash_ofs, &retlen);
++ raw->flash_offset = flash_ofs;
++ raw->__totlen = PAD(sizeof(*ri)+datalen);
++ raw->next_phys = NULL;
++
++ ret = jffs2_flash_writev(c, vecs, cnt, flash_ofs, &retlen,
++ (alloc_mode==ALLOC_GC)?0:f->inocache->ino);
++
+ if (ret || (retlen != sizeof(*ri) + datalen)) {
+- printk(KERN_NOTICE "Write of %d bytes at 0x%08x failed. returned %d, retlen %d\n",
++ printk(KERN_NOTICE "Write of %zd bytes at 0x%08x failed. returned %d, retlen %zd\n",
+ sizeof(*ri)+datalen, flash_ofs, ret, retlen);
++
+ /* Mark the space as dirtied */
+ if (retlen) {
+ /* Doesn't belong to any inode */
+@@ -229,48 +153,96 @@
+ seem corrupted, in which case the scan would skip over
+ any node we write before the original intended end of
+ this node */
+- jffs2_add_physical_node_ref(c, raw, sizeof(*ri)+datalen, 1);
++ raw->flash_offset |= REF_OBSOLETE;
++ jffs2_add_physical_node_ref(c, raw);
+ jffs2_mark_node_obsolete(c, raw);
+ } else {
+ printk(KERN_NOTICE "Not marking the space at 0x%08x as dirty because the flash driver returned retlen zero\n", raw->flash_offset);
+ jffs2_free_raw_node_ref(raw);
+ }
++ if (!retried && alloc_mode != ALLOC_NORETRY && (raw = jffs2_alloc_raw_node_ref())) {
++ /* Try to reallocate space and retry */
++ uint32_t dummy;
++ struct jffs2_eraseblock *jeb = &c->blocks[flash_ofs / c->sector_size];
++
++ retried = 1;
++
++ D1(printk(KERN_DEBUG "Retrying failed write.\n"));
++
++ ACCT_SANITY_CHECK(c,jeb);
++ D1(ACCT_PARANOIA_CHECK(jeb));
++
++ if (alloc_mode == ALLOC_GC) {
++ ret = jffs2_reserve_space_gc(c, sizeof(*ri) + datalen, &flash_ofs, &dummy);
++ } else {
++ /* Locking pain */
++ up(&f->sem);
++ jffs2_complete_reservation(c);
++
++ ret = jffs2_reserve_space(c, sizeof(*ri) + datalen, &flash_ofs, &dummy, alloc_mode);
++ down(&f->sem);
++ }
++
++ if (!ret) {
++ D1(printk(KERN_DEBUG "Allocated space at 0x%08x to retry failed write.\n", flash_ofs));
++
++ ACCT_SANITY_CHECK(c,jeb);
++ D1(ACCT_PARANOIA_CHECK(jeb));
+
++ goto retry;
++ }
++ D1(printk(KERN_DEBUG "Failed to allocate space to retry failed write: %d!\n", ret));
++ jffs2_free_raw_node_ref(raw);
++ }
+ /* Release the full_dnode which is now useless, and return */
+ jffs2_free_full_dnode(fn);
+- if (writelen)
+- *writelen = retlen;
+ return ERR_PTR(ret?ret:-EIO);
+ }
+ /* Mark the space used */
+- jffs2_add_physical_node_ref(c, raw, retlen, 0);
++ /* If node covers at least a whole page, or if it starts at the
++ beginning of a page and runs to the end of the file, or if
++ it's a hole node, mark it REF_PRISTINE, else REF_NORMAL.
++ */
++ if ((je32_to_cpu(ri->dsize) >= PAGE_CACHE_SIZE) ||
++ ( ((je32_to_cpu(ri->offset)&(PAGE_CACHE_SIZE-1))==0) &&
++ (je32_to_cpu(ri->dsize)+je32_to_cpu(ri->offset) == je32_to_cpu(ri->isize)))) {
++ raw->flash_offset |= REF_PRISTINE;
++ } else {
++ raw->flash_offset |= REF_NORMAL;
++ }
++ jffs2_add_physical_node_ref(c, raw);
+
+ /* Link into per-inode list */
+ raw->next_in_ino = f->inocache->nodes;
+ f->inocache->nodes = raw;
+
+- D1(printk(KERN_DEBUG "jffs2_write_dnode wrote node at 0x%08x with dsize 0x%x, csize 0x%x, node_crc 0x%08x, data_crc 0x%08x, totlen 0x%08x\n", flash_ofs, ri->dsize, ri->csize, ri->node_crc, ri->data_crc, ri->totlen));
+- if (writelen)
+- *writelen = retlen;
++ D1(printk(KERN_DEBUG "jffs2_write_dnode wrote node at 0x%08x(%d) with dsize 0x%x, csize 0x%x, node_crc 0x%08x, data_crc 0x%08x, totlen 0x%08x\n",
++ flash_ofs, ref_flags(raw), je32_to_cpu(ri->dsize),
++ je32_to_cpu(ri->csize), je32_to_cpu(ri->node_crc),
++ je32_to_cpu(ri->data_crc), je32_to_cpu(ri->totlen)));
++
++ if (retried) {
++ ACCT_SANITY_CHECK(c,NULL);
++ }
+
+- f->inocache->nodes = raw;
+ return fn;
+ }
+
+-struct jffs2_full_dirent *jffs2_write_dirent(struct inode *inode, struct jffs2_raw_dirent *rd, const unsigned char *name, __u32 namelen, __u32 flash_ofs, __u32 *writelen)
++struct jffs2_full_dirent *jffs2_write_dirent(struct jffs2_sb_info *c, struct jffs2_inode_info *f, struct jffs2_raw_dirent *rd, const unsigned char *name, uint32_t namelen, uint32_t flash_ofs, int alloc_mode)
+ {
+- struct jffs2_sb_info *c = JFFS2_SB_INFO(inode->i_sb);
+- struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode);
+ struct jffs2_raw_node_ref *raw;
+ struct jffs2_full_dirent *fd;
+- ssize_t retlen;
++ size_t retlen;
+ struct iovec vecs[2];
++ int retried = 0;
+ int ret;
+
+- D1(printk(KERN_DEBUG "jffs2_write_dirent(ino #%u, name at *0x%p \"%s\"->ino #%u, name_crc 0x%08x)\n", rd->pino, name, name, rd->ino, rd->name_crc));
+- writecheck(c->mtd, flash_ofs);
++ D1(printk(KERN_DEBUG "jffs2_write_dirent(ino #%u, name at *0x%p \"%s\"->ino #%u, name_crc 0x%08x)\n",
++ je32_to_cpu(rd->pino), name, name, je32_to_cpu(rd->ino),
++ je32_to_cpu(rd->name_crc)));
++ D1(writecheck(c, flash_ofs));
+
+- D1(if(rd->hdr_crc != crc32(0, rd, sizeof(struct jffs2_unknown_node)-4)) {
++ D1(if(je32_to_cpu(rd->hdr_crc) != crc32(0, rd, sizeof(struct jffs2_unknown_node)-4)) {
+ printk(KERN_CRIT "Eep. CRC not correct in jffs2_write_dirent()\n");
+ BUG();
+ }
+@@ -291,44 +263,414 @@
+ jffs2_free_raw_node_ref(raw);
+ return ERR_PTR(-ENOMEM);
+ }
+- raw->flash_offset = flash_ofs;
+- raw->totlen = PAD(rd->totlen);
+- raw->next_in_ino = f->inocache->nodes;
+- f->inocache->nodes = raw;
+- raw->next_phys = NULL;
+
+- fd->version = rd->version;
+- fd->ino = rd->ino;
++ fd->version = je32_to_cpu(rd->version);
++ fd->ino = je32_to_cpu(rd->ino);
+ fd->nhash = full_name_hash(name, strlen(name));
+ fd->type = rd->type;
+ memcpy(fd->name, name, namelen);
+ fd->name[namelen]=0;
++
++ retry:
+ fd->raw = raw;
+
+- ret = mtd_writev(c->mtd, vecs, 2, flash_ofs, &retlen);
++ raw->flash_offset = flash_ofs;
++ raw->__totlen = PAD(sizeof(*rd)+namelen);
++ raw->next_phys = NULL;
++
++ ret = jffs2_flash_writev(c, vecs, 2, flash_ofs, &retlen,
++ (alloc_mode==ALLOC_GC)?0:je32_to_cpu(rd->pino));
+ if (ret || (retlen != sizeof(*rd) + namelen)) {
+- printk(KERN_NOTICE "Write of %d bytes at 0x%08x failed. returned %d, retlen %d\n",
++ printk(KERN_NOTICE "Write of %zd bytes at 0x%08x failed. returned %d, retlen %zd\n",
+ sizeof(*rd)+namelen, flash_ofs, ret, retlen);
+ /* Mark the space as dirtied */
+ if (retlen) {
+- jffs2_add_physical_node_ref(c, raw, sizeof(*rd)+namelen, 1);
++ raw->next_in_ino = NULL;
++ raw->flash_offset |= REF_OBSOLETE;
++ jffs2_add_physical_node_ref(c, raw);
+ jffs2_mark_node_obsolete(c, raw);
+ } else {
+ printk(KERN_NOTICE "Not marking the space at 0x%08x as dirty because the flash driver returned retlen zero\n", raw->flash_offset);
+ jffs2_free_raw_node_ref(raw);
+ }
++ if (!retried && (raw = jffs2_alloc_raw_node_ref())) {
++ /* Try to reallocate space and retry */
++ uint32_t dummy;
++ struct jffs2_eraseblock *jeb = &c->blocks[flash_ofs / c->sector_size];
++
++ retried = 1;
++
++ D1(printk(KERN_DEBUG "Retrying failed write.\n"));
++
++ ACCT_SANITY_CHECK(c,jeb);
++ D1(ACCT_PARANOIA_CHECK(jeb));
++
++ if (alloc_mode == ALLOC_GC) {
++ ret = jffs2_reserve_space_gc(c, sizeof(*rd) + namelen, &flash_ofs, &dummy);
++ } else {
++ /* Locking pain */
++ up(&f->sem);
++ jffs2_complete_reservation(c);
++
++ ret = jffs2_reserve_space(c, sizeof(*rd) + namelen, &flash_ofs, &dummy, alloc_mode);
++ down(&f->sem);
++ }
+
++ if (!ret) {
++ D1(printk(KERN_DEBUG "Allocated space at 0x%08x to retry failed write.\n", flash_ofs));
++ ACCT_SANITY_CHECK(c,jeb);
++ D1(ACCT_PARANOIA_CHECK(jeb));
++ goto retry;
++ }
++ D1(printk(KERN_DEBUG "Failed to allocate space to retry failed write: %d!\n", ret));
++ jffs2_free_raw_node_ref(raw);
++ }
+ /* Release the full_dnode which is now useless, and return */
+ jffs2_free_full_dirent(fd);
+- if (writelen)
+- *writelen = retlen;
+ return ERR_PTR(ret?ret:-EIO);
+ }
+ /* Mark the space used */
+- jffs2_add_physical_node_ref(c, raw, retlen, 0);
+- if (writelen)
+- *writelen = retlen;
++ raw->flash_offset |= REF_PRISTINE;
++ jffs2_add_physical_node_ref(c, raw);
+
++ raw->next_in_ino = f->inocache->nodes;
+ f->inocache->nodes = raw;
++
++ if (retried) {
++ ACCT_SANITY_CHECK(c,NULL);
++ }
++
+ return fd;
+ }
++
++/* The OS-specific code fills in the metadata in the jffs2_raw_inode for us, so that
++ we don't have to go digging in struct inode or its equivalent. It should set:
++ mode, uid, gid, (starting)isize, atime, ctime, mtime */
++int jffs2_write_inode_range(struct jffs2_sb_info *c, struct jffs2_inode_info *f,
++ struct jffs2_raw_inode *ri, unsigned char *buf,
++ uint32_t offset, uint32_t writelen, uint32_t *retlen)
++{
++ int ret = 0;
++ uint32_t writtenlen = 0;
++
++ D1(printk(KERN_DEBUG "jffs2_write_inode_range(): Ino #%u, ofs 0x%x, len 0x%x\n",
++ f->inocache->ino, offset, writelen));
++
++ while(writelen) {
++ struct jffs2_full_dnode *fn;
++ unsigned char *comprbuf = NULL;
++ unsigned char comprtype = JFFS2_COMPR_NONE;
++ uint32_t phys_ofs, alloclen;
++ uint32_t datalen, cdatalen;
++ int retried = 0;
++
++ retry:
++ D2(printk(KERN_DEBUG "jffs2_commit_write() loop: 0x%x to write to 0x%x\n", writelen, offset));
++
++ ret = jffs2_reserve_space(c, sizeof(*ri) + JFFS2_MIN_DATA_LEN, &phys_ofs, &alloclen, ALLOC_NORMAL);
++ if (ret) {
++ D1(printk(KERN_DEBUG "jffs2_reserve_space returned %d\n", ret));
++ break;
++ }
++ down(&f->sem);
++ datalen = min_t(uint32_t, writelen, PAGE_CACHE_SIZE - (offset & (PAGE_CACHE_SIZE-1)));
++ cdatalen = min_t(uint32_t, alloclen - sizeof(*ri), datalen);
++
++ comprtype = jffs2_compress(buf, &comprbuf, &datalen, &cdatalen);
++
++ ri->magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
++ ri->nodetype = cpu_to_je16(JFFS2_NODETYPE_INODE);
++ ri->totlen = cpu_to_je32(sizeof(*ri) + cdatalen);
++ ri->hdr_crc = cpu_to_je32(crc32(0, ri, sizeof(struct jffs2_unknown_node)-4));
++
++ ri->ino = cpu_to_je32(f->inocache->ino);
++ ri->version = cpu_to_je32(++f->highest_version);
++ ri->isize = cpu_to_je32(max(je32_to_cpu(ri->isize), offset + datalen));
++ ri->offset = cpu_to_je32(offset);
++ ri->csize = cpu_to_je32(cdatalen);
++ ri->dsize = cpu_to_je32(datalen);
++ ri->compr = comprtype;
++ ri->node_crc = cpu_to_je32(crc32(0, ri, sizeof(*ri)-8));
++ ri->data_crc = cpu_to_je32(crc32(0, comprbuf, cdatalen));
++
++ fn = jffs2_write_dnode(c, f, ri, comprbuf, cdatalen, phys_ofs, ALLOC_NORETRY);
++
++ jffs2_free_comprbuf(comprbuf, buf);
++
++ if (IS_ERR(fn)) {
++ ret = PTR_ERR(fn);
++ up(&f->sem);
++ jffs2_complete_reservation(c);
++ if (!retried) {
++ /* Write error to be retried */
++ retried = 1;
++ D1(printk(KERN_DEBUG "Retrying node write in jffs2_write_inode_range()\n"));
++ goto retry;
++ }
++ break;
++ }
++ ret = jffs2_add_full_dnode_to_inode(c, f, fn);
++ if (f->metadata) {
++ jffs2_mark_node_obsolete(c, f->metadata->raw);
++ jffs2_free_full_dnode(f->metadata);
++ f->metadata = NULL;
++ }
++ if (ret) {
++ /* Eep */
++ D1(printk(KERN_DEBUG "Eep. add_full_dnode_to_inode() failed in commit_write, returned %d\n", ret));
++ jffs2_mark_node_obsolete(c, fn->raw);
++ jffs2_free_full_dnode(fn);
++
++ up(&f->sem);
++ jffs2_complete_reservation(c);
++ break;
++ }
++ up(&f->sem);
++ jffs2_complete_reservation(c);
++ if (!datalen) {
++ printk(KERN_WARNING "Eep. We didn't actually write any data in jffs2_write_inode_range()\n");
++ ret = -EIO;
++ break;
++ }
++ D1(printk(KERN_DEBUG "increasing writtenlen by %d\n", datalen));
++ writtenlen += datalen;
++ offset += datalen;
++ writelen -= datalen;
++ buf += datalen;
++ }
++ *retlen = writtenlen;
++ return ret;
++}
++
++int jffs2_do_create(struct jffs2_sb_info *c, struct jffs2_inode_info *dir_f, struct jffs2_inode_info *f, struct jffs2_raw_inode *ri, const char *name, int namelen)
++{
++ struct jffs2_raw_dirent *rd;
++ struct jffs2_full_dnode *fn;
++ struct jffs2_full_dirent *fd;
++ uint32_t alloclen, phys_ofs;
++ int ret;
++
++ /* Try to reserve enough space for both node and dirent.
++ * Just the node will do for now, though
++ */
++ ret = jffs2_reserve_space(c, sizeof(*ri), &phys_ofs, &alloclen, ALLOC_NORMAL);
++ D1(printk(KERN_DEBUG "jffs2_do_create(): reserved 0x%x bytes\n", alloclen));
++ if (ret) {
++ up(&f->sem);
++ return ret;
++ }
++
++ ri->data_crc = cpu_to_je32(0);
++ ri->node_crc = cpu_to_je32(crc32(0, ri, sizeof(*ri)-8));
++
++ fn = jffs2_write_dnode(c, f, ri, NULL, 0, phys_ofs, ALLOC_NORMAL);
++
++ D1(printk(KERN_DEBUG "jffs2_do_create created file with mode 0x%x\n",
++ jemode_to_cpu(ri->mode)));
++
++ if (IS_ERR(fn)) {
++ D1(printk(KERN_DEBUG "jffs2_write_dnode() failed\n"));
++ /* Eeek. Wave bye bye */
++ up(&f->sem);
++ jffs2_complete_reservation(c);
++ return PTR_ERR(fn);
++ }
++ /* No data here. Only a metadata node, which will be
++ obsoleted by the first data write
++ */
++ f->metadata = fn;
++
++ up(&f->sem);
++ jffs2_complete_reservation(c);
++ ret = jffs2_reserve_space(c, sizeof(*rd)+namelen, &phys_ofs, &alloclen, ALLOC_NORMAL);
++
++ if (ret) {
++ /* Eep. */
++ D1(printk(KERN_DEBUG "jffs2_reserve_space() for dirent failed\n"));
++ return ret;
++ }
++
++ rd = jffs2_alloc_raw_dirent();
++ if (!rd) {
++ /* Argh. Now we treat it like a normal delete */
++ jffs2_complete_reservation(c);
++ return -ENOMEM;
++ }
++
++ down(&dir_f->sem);
++
++ rd->magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
++ rd->nodetype = cpu_to_je16(JFFS2_NODETYPE_DIRENT);
++ rd->totlen = cpu_to_je32(sizeof(*rd) + namelen);
++ rd->hdr_crc = cpu_to_je32(crc32(0, rd, sizeof(struct jffs2_unknown_node)-4));
++
++ rd->pino = cpu_to_je32(dir_f->inocache->ino);
++ rd->version = cpu_to_je32(++dir_f->highest_version);
++ rd->ino = ri->ino;
++ rd->mctime = ri->ctime;
++ rd->nsize = namelen;
++ rd->type = DT_REG;
++ rd->node_crc = cpu_to_je32(crc32(0, rd, sizeof(*rd)-8));
++ rd->name_crc = cpu_to_je32(crc32(0, name, namelen));
++
++ fd = jffs2_write_dirent(c, dir_f, rd, name, namelen, phys_ofs, ALLOC_NORMAL);
++
++ jffs2_free_raw_dirent(rd);
++
++ if (IS_ERR(fd)) {
++ /* dirent failed to write. Delete the inode normally
++ as if it were the final unlink() */
++ jffs2_complete_reservation(c);
++ up(&dir_f->sem);
++ return PTR_ERR(fd);
++ }
++
++ /* Link the fd into the inode's list, obsoleting an old
++ one if necessary. */
++ jffs2_add_fd_to_list(c, fd, &dir_f->dents);
++
++ jffs2_complete_reservation(c);
++ up(&dir_f->sem);
++
++ return 0;
++}
++
++
++int jffs2_do_unlink(struct jffs2_sb_info *c, struct jffs2_inode_info *dir_f,
++ const char *name, int namelen, struct jffs2_inode_info *dead_f)
++{
++ struct jffs2_raw_dirent *rd;
++ struct jffs2_full_dirent *fd;
++ uint32_t alloclen, phys_ofs;
++ int ret;
++
++ rd = jffs2_alloc_raw_dirent();
++ if (!rd)
++ return -ENOMEM;
++
++ ret = jffs2_reserve_space(c, sizeof(*rd)+namelen, &phys_ofs, &alloclen, ALLOC_DELETION);
++ if (ret) {
++ jffs2_free_raw_dirent(rd);
++ return ret;
++ }
++
++ down(&dir_f->sem);
++
++ /* Build a deletion node */
++ rd->magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
++ rd->nodetype = cpu_to_je16(JFFS2_NODETYPE_DIRENT);
++ rd->totlen = cpu_to_je32(sizeof(*rd) + namelen);
++ rd->hdr_crc = cpu_to_je32(crc32(0, rd, sizeof(struct jffs2_unknown_node)-4));
++
++ rd->pino = cpu_to_je32(dir_f->inocache->ino);
++ rd->version = cpu_to_je32(++dir_f->highest_version);
++ rd->ino = cpu_to_je32(0);
++ rd->mctime = cpu_to_je32(get_seconds());
++ rd->nsize = namelen;
++ rd->type = DT_UNKNOWN;
++ rd->node_crc = cpu_to_je32(crc32(0, rd, sizeof(*rd)-8));
++ rd->name_crc = cpu_to_je32(crc32(0, name, namelen));
++
++ fd = jffs2_write_dirent(c, dir_f, rd, name, namelen, phys_ofs, ALLOC_DELETION);
++
++ jffs2_free_raw_dirent(rd);
++
++ if (IS_ERR(fd)) {
++ jffs2_complete_reservation(c);
++ up(&dir_f->sem);
++ return PTR_ERR(fd);
++ }
++
++ /* File it. This will mark the old one obsolete. */
++ jffs2_add_fd_to_list(c, fd, &dir_f->dents);
++
++ up(&dir_f->sem);
++
++ /* dead_f is NULL if this was a rename not a real unlink */
++ /* Also catch the !f->inocache case, where there was a dirent
++ pointing to an inode which didn't exist. */
++ if (dead_f && dead_f->inocache) {
++
++ down(&dead_f->sem);
++
++ while (dead_f->dents) {
++ /* There can be only deleted ones */
++ fd = dead_f->dents;
++
++ dead_f->dents = fd->next;
++
++ if (fd->ino) {
++ printk(KERN_WARNING "Deleting inode #%u with active dentry \"%s\"->ino #%u\n",
++ dead_f->inocache->ino, fd->name, fd->ino);
++ } else {
++ D1(printk(KERN_DEBUG "Removing deletion dirent for \"%s\" from dir ino #%u\n", fd->name, dead_f->inocache->ino));
++ }
++ jffs2_mark_node_obsolete(c, fd->raw);
++ jffs2_free_full_dirent(fd);
++ }
++
++ dead_f->inocache->nlink--;
++ /* NB: Caller must set inode nlink if appropriate */
++ up(&dead_f->sem);
++ }
++
++ jffs2_complete_reservation(c);
++
++ return 0;
++}
++
++
++int jffs2_do_link (struct jffs2_sb_info *c, struct jffs2_inode_info *dir_f, uint32_t ino, uint8_t type, const char *name, int namelen)
++{
++ struct jffs2_raw_dirent *rd;
++ struct jffs2_full_dirent *fd;
++ uint32_t alloclen, phys_ofs;
++ int ret;
++
++ rd = jffs2_alloc_raw_dirent();
++ if (!rd)
++ return -ENOMEM;
++
++ ret = jffs2_reserve_space(c, sizeof(*rd)+namelen, &phys_ofs, &alloclen, ALLOC_NORMAL);
++ if (ret) {
++ jffs2_free_raw_dirent(rd);
++ return ret;
++ }
++
++ down(&dir_f->sem);
++
++ /* Build a deletion node */
++ rd->magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
++ rd->nodetype = cpu_to_je16(JFFS2_NODETYPE_DIRENT);
++ rd->totlen = cpu_to_je32(sizeof(*rd) + namelen);
++ rd->hdr_crc = cpu_to_je32(crc32(0, rd, sizeof(struct jffs2_unknown_node)-4));
++
++ rd->pino = cpu_to_je32(dir_f->inocache->ino);
++ rd->version = cpu_to_je32(++dir_f->highest_version);
++ rd->ino = cpu_to_je32(ino);
++ rd->mctime = cpu_to_je32(get_seconds());
++ rd->nsize = namelen;
++
++ rd->type = type;
++
++ rd->node_crc = cpu_to_je32(crc32(0, rd, sizeof(*rd)-8));
++ rd->name_crc = cpu_to_je32(crc32(0, name, namelen));
++
++ fd = jffs2_write_dirent(c, dir_f, rd, name, namelen, phys_ofs, ALLOC_NORMAL);
++
++ jffs2_free_raw_dirent(rd);
++
++ if (IS_ERR(fd)) {
++ jffs2_complete_reservation(c);
++ up(&dir_f->sem);
++ return PTR_ERR(fd);
++ }
++
++ /* File it. This will mark the old one obsolete. */
++ jffs2_add_fd_to_list(c, fd, &dir_f->dents);
++
++ jffs2_complete_reservation(c);
++ up(&dir_f->sem);
++
++ return 0;
++}
+diff -Nurb linux-mips-2.4.27/fs/jffs2/writev.c linux/fs/jffs2/writev.c
+--- linux-mips-2.4.27/fs/jffs2/writev.c 1970-01-01 01:00:00.000000000 +0100
++++ linux/fs/jffs2/writev.c 2004-11-19 10:25:12.134164072 +0100
+@@ -0,0 +1,50 @@
++/*
++ * JFFS2 -- Journalling Flash File System, Version 2.
++ *
++ * Copyright (C) 2001, 2002 Red Hat, Inc.
++ *
++ * Created by David Woodhouse <dwmw2@redhat.com>
++ *
++ * For licensing information, see the file 'LICENCE' in this directory.
++ *
++ * $Id: writev.c,v 1.4 2003/10/04 08:33:07 dwmw2 Exp $
++ *
++ */
++
++#include <linux/kernel.h>
++#include <linux/mtd/mtd.h>
++#include "nodelist.h"
++
++/* This ought to be in core MTD code. All registered MTD devices
++ without writev should have this put in place. Bug the MTD
++ maintainer */
++static inline int mtd_fake_writev(struct mtd_info *mtd, const struct iovec *vecs,
++ unsigned long count, loff_t to, size_t *retlen)
++{
++ unsigned long i;
++ size_t totlen = 0, thislen;
++ int ret = 0;
++
++ for (i=0; i<count; i++) {
++ if (!vecs[i].iov_len)
++ continue;
++ ret = mtd->write(mtd, to, vecs[i].iov_len, &thislen, vecs[i].iov_base);
++ totlen += thislen;
++ if (ret || thislen != vecs[i].iov_len)
++ break;
++ to += vecs[i].iov_len;
++ }
++ if (retlen)
++ *retlen = totlen;
++ return ret;
++}
++
++int jffs2_flash_direct_writev(struct jffs2_sb_info *c, const struct iovec *vecs,
++ unsigned long count, loff_t to, size_t *retlen)
++{
++ if (c->mtd->writev)
++ return c->mtd->writev(c->mtd, vecs, count, to, retlen);
++ else
++ return mtd_fake_writev(c->mtd, vecs, count, to, retlen);
++}
++
+diff -Nurb linux-mips-2.4.27/include/linux/jffs2.h linux/include/linux/jffs2.h
+--- linux-mips-2.4.27/include/linux/jffs2.h 2002-06-27 00:36:46.000000000 +0200
++++ linux/include/linux/jffs2.h 2004-11-19 10:25:12.139163312 +0100
+@@ -1,50 +1,30 @@
+ /*
+ * JFFS2 -- Journalling Flash File System, Version 2.
+ *
+- * Copyright (C) 2001 Red Hat, Inc.
++ * Copyright (C) 2001-2003 Red Hat, Inc.
+ *
+- * Created by David Woodhouse <dwmw2@cambridge.redhat.com>
++ * Created by David Woodhouse <dwmw2@redhat.com>
+ *
+- * The original JFFS, from which the design for JFFS2 was derived,
+- * was designed and implemented by Axis Communications AB.
++ * For licensing information, see the file 'LICENCE' in the
++ * jffs2 directory.
+ *
+- * The contents of this file are subject to the Red Hat eCos Public
+- * License Version 1.1 (the "Licence"); you may not use this file
+- * except in compliance with the Licence. You may obtain a copy of
+- * the Licence at http://www.redhat.com/
+- *
+- * Software distributed under the Licence is distributed on an "AS IS"
+- * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
+- * See the Licence for the specific language governing rights and
+- * limitations under the Licence.
+- *
+- * The Original Code is JFFS2 - Journalling Flash File System, version 2
+- *
+- * Alternatively, the contents of this file may be used under the
+- * terms of the GNU General Public License version 2 (the "GPL"), in
+- * which case the provisions of the GPL are applicable instead of the
+- * above. If you wish to allow the use of your version of this file
+- * only under the terms of the GPL and not to allow others to use your
+- * version of this file under the RHEPL, indicate your decision by
+- * deleting the provisions above and replace them with the notice and
+- * other provisions required by the GPL. If you do not delete the
+- * provisions above, a recipient may use your version of this file
+- * under either the RHEPL or the GPL.
+- *
+- * $Id: jffs2.h,v 1.19 2001/10/09 13:20:23 dwmw2 Exp $
++ * $Id: jffs2.h,v 1.31 2003/10/04 08:33:05 dwmw2 Exp $
+ *
+ */
+
+ #ifndef __LINUX_JFFS2_H__
+ #define __LINUX_JFFS2_H__
+
+-#include <asm/types.h>
++/* You must include something which defines the C99 uintXX_t types.
++ We don't do it from here because this file is used in too many
++ different environments. */
++
+ #define JFFS2_SUPER_MAGIC 0x72b6
+
+ /* Values we may expect to find in the 'magic' field */
+ #define JFFS2_OLD_MAGIC_BITMASK 0x1984
+ #define JFFS2_MAGIC_BITMASK 0x1985
+-#define KSAMTIB_CIGAM_2SFFJ 0x5981 /* For detecting wrong-endian fs */
++#define KSAMTIB_CIGAM_2SFFJ 0x8519 /* For detecting wrong-endian fs */
+ #define JFFS2_EMPTY_BITMASK 0xffff
+ #define JFFS2_DIRTY_BITMASK 0x0000
+
+@@ -78,16 +58,12 @@
+ #define JFFS2_NODETYPE_DIRENT (JFFS2_FEATURE_INCOMPAT | JFFS2_NODE_ACCURATE | 1)
+ #define JFFS2_NODETYPE_INODE (JFFS2_FEATURE_INCOMPAT | JFFS2_NODE_ACCURATE | 2)
+ #define JFFS2_NODETYPE_CLEANMARKER (JFFS2_FEATURE_RWCOMPAT_DELETE | JFFS2_NODE_ACCURATE | 3)
++#define JFFS2_NODETYPE_PADDING (JFFS2_FEATURE_RWCOMPAT_DELETE | JFFS2_NODE_ACCURATE | 4)
+
+ // Maybe later...
+ //#define JFFS2_NODETYPE_CHECKPOINT (JFFS2_FEATURE_RWCOMPAT_DELETE | JFFS2_NODE_ACCURATE | 3)
+ //#define JFFS2_NODETYPE_OPTIONS (JFFS2_FEATURE_RWCOMPAT_COPY | JFFS2_NODE_ACCURATE | 4)
+
+-/* Same as the non_ECC versions, but with extra space for real
+- * ECC instead of just the checksum. For use on NAND flash
+- */
+-//#define JFFS2_NODETYPE_DIRENT_ECC (JFFS2_FEATURE_INCOMPAT | JFFS2_NODE_ACCURATE | 5)
+-//#define JFFS2_NODETYPE_INODE_ECC (JFFS2_FEATURE_INCOMPAT | JFFS2_NODE_ACCURATE | 6)
+
+ #define JFFS2_INO_FLAG_PREREAD 1 /* Do read_inode() for this one at
+ mount time, don't wait for it to
+@@ -96,31 +72,79 @@
+ compression type */
+
+
++/* These can go once we've made sure we've caught all uses without
++ byteswapping */
++
++typedef struct {
++ uint32_t v32;
++} __attribute__((packed)) jint32_t;
++
++typedef struct {
++ uint32_t m;
++} __attribute__((packed)) jmode_t;
++
++typedef struct {
++ uint16_t v16;
++} __attribute__((packed)) jint16_t;
++
++#define JFFS2_NATIVE_ENDIAN
++
++/* Note we handle mode bits conversion from JFFS2 (i.e. Linux) to/from
++ whatever OS we're actually running on here too. */
++
++#if defined(JFFS2_NATIVE_ENDIAN)
++#define cpu_to_je16(x) ((jint16_t){x})
++#define cpu_to_je32(x) ((jint32_t){x})
++#define cpu_to_jemode(x) ((jmode_t){os_to_jffs2_mode(x)})
++
++#define je16_to_cpu(x) ((x).v16)
++#define je32_to_cpu(x) ((x).v32)
++#define jemode_to_cpu(x) (jffs2_to_os_mode((x).m))
++#elif defined(JFFS2_BIG_ENDIAN)
++#define cpu_to_je16(x) ((jint16_t){cpu_to_be16(x)})
++#define cpu_to_je32(x) ((jint32_t){cpu_to_be32(x)})
++#define cpu_to_jemode(x) ((jmode_t){cpu_to_be32(os_to_jffs2_mode(x))})
++
++#define je16_to_cpu(x) (be16_to_cpu(x.v16))
++#define je32_to_cpu(x) (be32_to_cpu(x.v32))
++#define jemode_to_cpu(x) (be32_to_cpu(jffs2_to_os_mode((x).m)))
++#elif defined(JFFS2_LITTLE_ENDIAN)
++#define cpu_to_je16(x) ((jint16_t){cpu_to_le16(x)})
++#define cpu_to_je32(x) ((jint32_t){cpu_to_le32(x)})
++#define cpu_to_jemode(x) ((jmode_t){cpu_to_le32(os_to_jffs2_mode(x))})
++
++#define je16_to_cpu(x) (le16_to_cpu(x.v16))
++#define je32_to_cpu(x) (le32_to_cpu(x.v32))
++#define jemode_to_cpu(x) (le32_to_cpu(jffs2_to_os_mode((x).m)))
++#else
++#error wibble
++#endif
++
+ struct jffs2_unknown_node
+ {
+ /* All start like this */
+- __u16 magic;
+- __u16 nodetype;
+- __u32 totlen; /* So we can skip over nodes we don't grok */
+- __u32 hdr_crc;
++ jint16_t magic;
++ jint16_t nodetype;
++ jint32_t totlen; /* So we can skip over nodes we don't grok */
++ jint32_t hdr_crc;
+ } __attribute__((packed));
+
+ struct jffs2_raw_dirent
+ {
+- __u16 magic;
+- __u16 nodetype; /* == JFFS_NODETYPE_DIRENT */
+- __u32 totlen;
+- __u32 hdr_crc;
+- __u32 pino;
+- __u32 version;
+- __u32 ino; /* == zero for unlink */
+- __u32 mctime;
+- __u8 nsize;
+- __u8 type;
+- __u8 unused[2];
+- __u32 node_crc;
+- __u32 name_crc;
+- __u8 name[0];
++ jint16_t magic;
++ jint16_t nodetype; /* == JFFS_NODETYPE_DIRENT */
++ jint32_t totlen;
++ jint32_t hdr_crc;
++ jint32_t pino;
++ jint32_t version;
++ jint32_t ino; /* == zero for unlink */
++ jint32_t mctime;
++ uint8_t nsize;
++ uint8_t type;
++ uint8_t unused[2];
++ jint32_t node_crc;
++ jint32_t name_crc;
++ uint8_t name[0];
+ } __attribute__((packed));
+
+ /* The JFFS2 raw inode structure: Used for storage on physical media. */
+@@ -131,28 +155,28 @@
+ */
+ struct jffs2_raw_inode
+ {
+- __u16 magic; /* A constant magic number. */
+- __u16 nodetype; /* == JFFS_NODETYPE_INODE */
+- __u32 totlen; /* Total length of this node (inc data, etc.) */
+- __u32 hdr_crc;
+- __u32 ino; /* Inode number. */
+- __u32 version; /* Version number. */
+- __u32 mode; /* The file's type or mode. */
+- __u16 uid; /* The file's owner. */
+- __u16 gid; /* The file's group. */
+- __u32 isize; /* Total resultant size of this inode (used for truncations) */
+- __u32 atime; /* Last access time. */
+- __u32 mtime; /* Last modification time. */
+- __u32 ctime; /* Change time. */
+- __u32 offset; /* Where to begin to write. */
+- __u32 csize; /* (Compressed) data size */
+- __u32 dsize; /* Size of the node's data. (after decompression) */
+- __u8 compr; /* Compression algorithm used */
+- __u8 usercompr; /* Compression algorithm requested by the user */
+- __u16 flags; /* See JFFS2_INO_FLAG_* */
+- __u32 data_crc; /* CRC for the (compressed) data. */
+- __u32 node_crc; /* CRC for the raw inode (excluding data) */
+-// __u8 data[dsize];
++ jint16_t magic; /* A constant magic number. */
++ jint16_t nodetype; /* == JFFS_NODETYPE_INODE */
++ jint32_t totlen; /* Total length of this node (inc data, etc.) */
++ jint32_t hdr_crc;
++ jint32_t ino; /* Inode number. */
++ jint32_t version; /* Version number. */
++ jmode_t mode; /* The file's type or mode. */
++ jint16_t uid; /* The file's owner. */
++ jint16_t gid; /* The file's group. */
++ jint32_t isize; /* Total resultant size of this inode (used for truncations) */
++ jint32_t atime; /* Last access time. */
++ jint32_t mtime; /* Last modification time. */
++ jint32_t ctime; /* Change time. */
++ jint32_t offset; /* Where to begin to write. */
++ jint32_t csize; /* (Compressed) data size */
++ jint32_t dsize; /* Size of the node's data. (after decompression) */
++ uint8_t compr; /* Compression algorithm used */
++ uint8_t usercompr; /* Compression algorithm requested by the user */
++ jint16_t flags; /* See JFFS2_INO_FLAG_* */
++ jint32_t data_crc; /* CRC for the (compressed) data. */
++ jint32_t node_crc; /* CRC for the raw inode (excluding data) */
++ uint8_t data[0];
+ } __attribute__((packed));
+
+ union jffs2_node_union {
+diff -Nurb linux-mips-2.4.27/include/linux/jffs2_fs_i.h linux/include/linux/jffs2_fs_i.h
+--- linux-mips-2.4.27/include/linux/jffs2_fs_i.h 2001-10-19 03:25:03.000000000 +0200
++++ linux/include/linux/jffs2_fs_i.h 2004-11-19 10:25:12.141163008 +0100
+@@ -1,22 +1,12 @@
+-/* $Id: jffs2_fs_i.h,v 1.8 2001/04/18 13:05:28 dwmw2 Exp $ */
++/* $Id: jffs2_fs_i.h,v 1.16 2003/01/09 14:03:21 dwmw2 Exp $ */
+
+ #ifndef _JFFS2_FS_I
+ #define _JFFS2_FS_I
+
+-/* Include the pipe_inode_info at the beginning so that we can still
+- use the storage space in the inode when we have a pipe inode.
+- This sucks.
+-*/
+-
+-#undef THISSUCKS /* Only for 2.2 */
+-#ifdef THISSUCKS
+-#include <linux/pipe_fs_i.h>
+-#endif
++#include <linux/version.h>
++#include <linux/rbtree.h>
+
+ struct jffs2_inode_info {
+-#ifdef THISSUCKS
+- struct pipe_inode_info pipecrap;
+-#endif
+ /* We need an internal semaphore similar to inode->i_sem.
+ Unfortunately, we can't used the existing one, because
+ either the GC would deadlock, or we'd have to release it
+@@ -26,10 +16,10 @@
+ struct semaphore sem;
+
+ /* The highest (datanode) version number used for this ino */
+- __u32 highest_version;
++ uint32_t highest_version;
+
+ /* List of data fragments which make up the file */
+- struct jffs2_node_frag *fraglist;
++ struct rb_root fragtree;
+
+ /* There may be one datanode which isn't referenced by any of the
+ above fragments, if it contains a metadata update but no actual
+@@ -44,19 +34,13 @@
+ /* Some stuff we just have to keep in-core at all times, for each inode. */
+ struct jffs2_inode_cache *inocache;
+
+- /* Keep a pointer to the last physical node in the list. We don't
+- use the doubly-linked lists because we don't want to increase
+- the memory usage that much. This is simpler */
+- // struct jffs2_raw_node_ref *lastnode;
+- __u16 flags;
+- __u8 usercompr;
+-};
+-
+-#ifdef JFFS2_OUT_OF_KERNEL
+-#define JFFS2_INODE_INFO(i) ((struct jffs2_inode_info *) &(i)->u)
+-#else
+-#define JFFS2_INODE_INFO(i) (&i->u.jffs2_i)
++ uint16_t flags;
++ uint8_t usercompr;
++#if !defined (__ECOS)
++#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,2)
++ struct inode vfs_inode;
+ #endif
++#endif
++};
+
+ #endif /* _JFFS2_FS_I */
+-
+diff -Nurb linux-mips-2.4.27/include/linux/jffs2_fs_sb.h linux/include/linux/jffs2_fs_sb.h
+--- linux-mips-2.4.27/include/linux/jffs2_fs_sb.h 2002-06-27 00:36:46.000000000 +0200
++++ linux/include/linux/jffs2_fs_sb.h 2004-11-19 10:25:12.142162856 +0100
+@@ -1,19 +1,22 @@
+-/* $Id: jffs2_fs_sb.h,v 1.16.2.1 2002/02/23 14:13:34 dwmw2 Exp $ */
++/* $Id: jffs2_fs_sb.h,v 1.45 2003/10/08 11:46:27 dwmw2 Exp $ */
+
+ #ifndef _JFFS2_FS_SB
+ #define _JFFS2_FS_SB
+
+ #include <linux/types.h>
+ #include <linux/spinlock.h>
++#include <linux/workqueue.h>
+ #include <linux/completion.h>
+ #include <asm/semaphore.h>
++#include <linux/timer.h>
++#include <linux/wait.h>
+ #include <linux/list.h>
+
+-#define INOCACHE_HASHSIZE 1
+-
+ #define JFFS2_SB_FLAG_RO 1
+ #define JFFS2_SB_FLAG_MOUNTING 2
+
++struct jffs2_inodirty;
++
+ /* A struct for the overall file system control. Pointers to
+ jffs2_sb_info structs are named `c' in the source code.
+ Nee jffs_control
+@@ -21,36 +24,46 @@
+ struct jffs2_sb_info {
+ struct mtd_info *mtd;
+
+- __u32 highest_ino;
++ uint32_t highest_ino;
++ uint32_t checked_ino;
++
+ unsigned int flags;
+- spinlock_t nodelist_lock;
+
+- // pid_t thread_pid; /* GC thread's PID */
+ struct task_struct *gc_task; /* GC task struct */
+ struct semaphore gc_thread_start; /* GC thread start mutex */
+ struct completion gc_thread_exit; /* GC thread exit completion port */
+- // __u32 gc_minfree_threshold; /* GC trigger thresholds */
+- // __u32 gc_maxdirty_threshold;
+
+ struct semaphore alloc_sem; /* Used to protect all the following
+ fields, and also to protect against
+ out-of-order writing of nodes.
+ And GC.
+ */
+- __u32 flash_size;
+- __u32 used_size;
+- __u32 dirty_size;
+- __u32 free_size;
+- __u32 erasing_size;
+- __u32 bad_size;
+- __u32 sector_size;
+- // __u32 min_free_size;
+- // __u32 max_chunk_size;
++ uint32_t cleanmarker_size; /* Size of an _inline_ CLEANMARKER
++ (i.e. zero for OOB CLEANMARKER */
++
++ uint32_t flash_size;
++ uint32_t used_size;
++ uint32_t dirty_size;
++ uint32_t wasted_size;
++ uint32_t free_size;
++ uint32_t erasing_size;
++ uint32_t bad_size;
++ uint32_t sector_size;
++ uint32_t unchecked_size;
++
++ uint32_t nr_free_blocks;
++ uint32_t nr_erasing_blocks;
++
++ /* Number of free blocks there must be before we... */
++ uint8_t resv_blocks_write; /* ... allow a normal filesystem write */
++ uint8_t resv_blocks_deletion; /* ... allow a normal filesystem deletion */
++ uint8_t resv_blocks_gctrigger; /* ... wake up the GC thread */
++ uint8_t resv_blocks_gcbad; /* ... pick a block from the bad_list to GC */
++ uint8_t resv_blocks_gcmerge; /* ... merge pages when garbage collecting */
+
+- __u32 nr_free_blocks;
+- __u32 nr_erasing_blocks;
++ uint32_t nospc_dirty_size;
+
+- __u32 nr_blocks;
++ uint32_t nr_blocks;
+ struct jffs2_eraseblock *blocks; /* The whole array of blocks. Used for getting blocks
+ * from the offset (blocks[ofs / sector_size]) */
+ struct jffs2_eraseblock *nextblock; /* The block we're currently filling */
+@@ -58,9 +71,12 @@
+ struct jffs2_eraseblock *gcblock; /* The block we're currently garbage-collecting */
+
+ struct list_head clean_list; /* Blocks 100% full of clean data */
++ struct list_head very_dirty_list; /* Blocks with lots of dirty space */
+ struct list_head dirty_list; /* Blocks with some dirty space */
++ struct list_head erasable_list; /* Blocks which are completely dirty, and need erasing */
++ struct list_head erasable_pending_wbuf_list; /* Blocks which need erasing but only after the current wbuf is flushed */
+ struct list_head erasing_list; /* Blocks which are currently erasing */
+- struct list_head erase_pending_list; /* Blocks which need erasing */
++ struct list_head erase_pending_list; /* Blocks which need erasing now */
+ struct list_head erase_complete_list; /* Blocks which are erased and need the clean marker written to them */
+ struct list_head free_list; /* Blocks which are free and ready to be used */
+ struct list_head bad_list; /* Bad blocks. */
+@@ -69,16 +85,33 @@
+ spinlock_t erase_completion_lock; /* Protect free_list and erasing_list
+ against erase completion handler */
+ wait_queue_head_t erase_wait; /* For waiting for erases to complete */
+- struct jffs2_inode_cache *inocache_list[INOCACHE_HASHSIZE];
++
++ wait_queue_head_t inocache_wq;
++ struct jffs2_inode_cache **inocache_list;
+ spinlock_t inocache_lock;
+-};
+
+-#ifdef JFFS2_OUT_OF_KERNEL
+-#define JFFS2_SB_INFO(sb) ((struct jffs2_sb_info *) &(sb)->u)
+-#else
+-#define JFFS2_SB_INFO(sb) (&sb->u.jffs2_sb)
++ /* Sem to allow jffs2_garbage_collect_deletion_dirent to
++ drop the erase_completion_lock while it's holding a pointer
++ to an obsoleted node. I don't like this. Alternatives welcomed. */
++ struct semaphore erase_free_sem;
++
++#ifdef CONFIG_JFFS2_FS_NAND
++ /* Write-behind buffer for NAND flash */
++ unsigned char *wbuf;
++ uint32_t wbuf_ofs;
++ uint32_t wbuf_len;
++ uint32_t wbuf_pagesize;
++ struct jffs2_inodirty *wbuf_inodes;
++
++ /* Information about out-of-band area usage... */
++ struct nand_oobinfo *oobinfo;
++ uint32_t badblock_pos;
++ uint32_t fsdata_pos;
++ uint32_t fsdata_len;
+ #endif
+
+-#define OFNI_BS_2SFFJ(c) ((struct super_block *) ( ((char *)c) - ((char *)(&((struct super_block *)NULL)->u)) ) )
++ /* OS-private pointer for getting back to master superblock info */
++ void *os_priv;
++};
+
+ #endif /* _JFFS2_FB_SB */
+diff -Nurb linux-mips-2.4.27/include/linux/mtd/blktrans.h linux/include/linux/mtd/blktrans.h
+--- linux-mips-2.4.27/include/linux/mtd/blktrans.h 1970-01-01 01:00:00.000000000 +0100
++++ linux/include/linux/mtd/blktrans.h 2004-11-19 10:25:12.037178816 +0100
+@@ -0,0 +1,72 @@
++/*
++ * $Id: blktrans.h,v 1.5 2003/06/23 12:00:08 dwmw2 Exp $
++ *
++ * (C) 2003 David Woodhouse <dwmw2@infradead.org>
++ *
++ * Interface to Linux block layer for MTD 'translation layers'.
++ *
++ */
++
++#ifndef __MTD_TRANS_H__
++#define __MTD_TRANS_H__
++
++#include <asm/semaphore.h>
++
++struct hd_geometry;
++struct mtd_info;
++struct mtd_blktrans_ops;
++struct file;
++struct inode;
++
++struct mtd_blktrans_dev {
++ struct mtd_blktrans_ops *tr;
++ struct list_head list;
++ struct mtd_info *mtd;
++ struct semaphore sem;
++ int devnum;
++ int blksize;
++ unsigned long size;
++ int readonly;
++ void *blkcore_priv; /* gendisk in 2.5, devfs_handle in 2.4 */
++};
++
++struct blkcore_priv; /* Differs for 2.4 and 2.5 kernels; private */
++
++struct mtd_blktrans_ops {
++ char *name;
++ int major;
++ int part_bits;
++
++ /* Access functions */
++ int (*readsect)(struct mtd_blktrans_dev *dev,
++ unsigned long block, char *buffer);
++ int (*writesect)(struct mtd_blktrans_dev *dev,
++ unsigned long block, char *buffer);
++
++ /* Block layer ioctls */
++ int (*getgeo)(struct mtd_blktrans_dev *dev, struct hd_geometry *geo);
++ int (*flush)(struct mtd_blktrans_dev *dev);
++
++ /* Called with mtd_table_mutex held; no race with add/remove */
++ int (*open)(struct mtd_blktrans_dev *dev);
++ int (*release)(struct mtd_blktrans_dev *dev);
++
++ /* Called on {de,}registration and on subsequent addition/removal
++ of devices, with mtd_table_mutex held. */
++ void (*add_mtd)(struct mtd_blktrans_ops *tr, struct mtd_info *mtd);
++ void (*remove_dev)(struct mtd_blktrans_dev *dev);
++
++ struct list_head devs;
++ struct list_head list;
++ struct module *owner;
++
++ struct mtd_blkcore_priv *blkcore_priv;
++};
++
++extern int register_mtd_blktrans(struct mtd_blktrans_ops *tr);
++extern int deregister_mtd_blktrans(struct mtd_blktrans_ops *tr);
++extern int add_mtd_blktrans_dev(struct mtd_blktrans_dev *dev);
++extern int del_mtd_blktrans_dev(struct mtd_blktrans_dev *dev);
++
++
++#endif /* __MTD_TRANS_H__ */
+diff -Nurb linux-mips-2.4.27/include/linux/mtd/cfi.h linux/include/linux/mtd/cfi.h
+--- linux-mips-2.4.27/include/linux/mtd/cfi.h 2003-02-26 01:53:51.000000000 +0100
++++ linux/include/linux/mtd/cfi.h 2004-11-19 10:25:12.038178664 +0100
+@@ -1,13 +1,14 @@
+
+ /* Common Flash Interface structures
+ * See http://support.intel.com/design/flash/technote/index.htm
+- * $Id: cfi.h,v 1.32 2002/09/05 05:15:32 acurtis Exp $
++ * $Id: cfi.h,v 1.38 2003/11/08 00:51:21 dsaxena Exp $
+ */
+
+ #ifndef __MTD_CFI_H__
+ #define __MTD_CFI_H__
+
+ #include <linux/config.h>
++#include <linux/version.h>
+ #include <linux/delay.h>
+ #include <linux/types.h>
+ #include <linux/interrupt.h>
+@@ -260,7 +261,8 @@
+ __u8 pri[3];
+ __u8 MajorVersion;
+ __u8 MinorVersion;
+- __u32 FeatureSupport;
++ __u32 FeatureSupport; /* if bit 31 is set then an additional __u32 feature
++ block follows - FIXME - not currently supported */
+ __u8 SuspendCmdSupport;
+ __u16 BlkStatusRegMask;
+ __u8 VccOptimal;
+@@ -271,6 +273,25 @@
+ __u8 UserProtRegSize;
+ } __attribute__((packed));
+
++/* Vendor-Specific PRI for AMD/Fujitsu Extended Command Set (0x0002) */
++
++struct cfi_pri_amdstd {
++ __u8 pri[3];
++ __u8 MajorVersion;
++ __u8 MinorVersion;
++ __u8 SiliconRevision; /* bits 1-0: Address Sensitive Unlock */
++ __u8 EraseSuspend;
++ __u8 BlkProt;
++ __u8 TmpBlkUnprotect;
++ __u8 BlkProtUnprot;
++ __u8 SimultaneousOps;
++ __u8 BurstMode;
++ __u8 PageMode;
++ __u8 VppMin;
++ __u8 VppMax;
++ __u8 TopBottom;
++} __attribute__((packed));
++
+ struct cfi_pri_query {
+ __u8 NumFields;
+ __u32 ProtField[1]; /* Not host ordered */
+@@ -314,8 +335,6 @@
+ struct flchip chips[0]; /* per-chip data structure for each chip */
+ };
+
+-#define MAX_CFI_CHIPS 8 /* Entirely arbitrary to avoid realloc() */
+-
+ /*
+ * Returns the command address according to the given geometry.
+ */
+@@ -387,13 +406,13 @@
+ static inline cfi_word cfi_read(struct map_info *map, __u32 addr)
+ {
+ if (cfi_buswidth_is_1()) {
+- return map->read8(map, addr);
++ return map_read8(map, addr);
+ } else if (cfi_buswidth_is_2()) {
+- return map->read16(map, addr);
++ return map_read16(map, addr);
+ } else if (cfi_buswidth_is_4()) {
+- return map->read32(map, addr);
++ return map_read32(map, addr);
+ } else if (cfi_buswidth_is_8()) {
+- return map->read64(map, addr);
++ return map_read64(map, addr);
+ } else {
+ return 0;
+ }
+@@ -406,13 +425,13 @@
+ static inline void cfi_write(struct map_info *map, cfi_word val, __u32 addr)
+ {
+ if (cfi_buswidth_is_1()) {
+- map->write8(map, val, addr);
++ map_write8(map, val, addr);
+ } else if (cfi_buswidth_is_2()) {
+- map->write16(map, val, addr);
++ map_write16(map, val, addr);
+ } else if (cfi_buswidth_is_4()) {
+- map->write32(map, val, addr);
++ map_write32(map, val, addr);
+ } else if (cfi_buswidth_is_8()) {
+- map->write64(map, val, addr);
++ map_write64(map, val, addr);
+ }
+ }
+
+@@ -443,13 +462,13 @@
+ static inline __u8 cfi_read_query(struct map_info *map, __u32 addr)
+ {
+ if (cfi_buswidth_is_1()) {
+- return map->read8(map, addr);
++ return map_read8(map, addr);
+ } else if (cfi_buswidth_is_2()) {
+- return cfi16_to_cpu(map->read16(map, addr));
++ return cfi16_to_cpu(map_read16(map, addr));
+ } else if (cfi_buswidth_is_4()) {
+- return cfi32_to_cpu(map->read32(map, addr));
++ return cfi32_to_cpu(map_read32(map, addr));
+ } else if (cfi_buswidth_is_8()) {
+- return cfi64_to_cpu(map->read64(map, addr));
++ return cfi64_to_cpu(map_read64(map, addr));
+ } else {
+ return 0;
+ }
+@@ -479,5 +498,19 @@
+ spin_unlock_bh(mutex);
+ }
+
++struct cfi_extquery *cfi_read_pri(struct map_info *map, __u16 adr, __u16 size,
++ const char* name);
++
++struct cfi_fixup {
++ __u16 mfr;
++ __u16 id;
++ void (*fixup)(struct map_info *map, void* param);
++ void* param;
++};
++
++#define CFI_MFR_ANY 0xffff
++#define CFI_ID_ANY 0xffff
++
++void cfi_fixup(struct map_info *map, struct cfi_fixup* fixups);
+
+ #endif /* __MTD_CFI_H__ */
+diff -Nurb linux-mips-2.4.27/include/linux/mtd/compatmac.h linux/include/linux/mtd/compatmac.h
+--- linux-mips-2.4.27/include/linux/mtd/compatmac.h 2003-02-26 01:53:51.000000000 +0100
++++ linux/include/linux/mtd/compatmac.h 2004-11-19 10:25:12.041178208 +0100
+@@ -1,573 +1,152 @@
+-
+ /*
+- * mtd/include/compatmac.h
+- *
+- * $Id: compatmac.h,v 1.45 2003/01/24 15:50:57 dwmw2 Exp $
++ * $Id: compatmac.h,v 1.63 2003/11/14 19:50:04 thayne Exp $
+ *
+ * Extensions and omissions from the normal 'linux/compatmac.h'
+ * files. hopefully this will end up empty as the 'real' one
+ * becomes fully-featured.
+ */
+
+-
+-/* First, include the parts which the kernel is good enough to provide
+- * to us
+- */
+-
+ #ifndef __LINUX_MTD_COMPATMAC_H__
+ #define __LINUX_MTD_COMPATMAC_H__
+
+-#include <linux/config.h>
+-#include <linux/module.h>
+-#ifndef LINUX_VERSION_CODE
+ #include <linux/version.h>
+-#endif
+-
+-#ifndef VERSION_CODE
+-# define VERSION_CODE(vers,rel,seq) ( ((vers)<<16) | ((rel)<<8) | (seq) )
+-#endif
+-#ifndef KERNEL_VERSION
+-# define KERNEL_VERSION(a,b,c) VERSION_CODE(a,b,c)
+-#endif
+
+-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,0,0)
+-# error "This kernel is too old: not supported by this file"
+-#endif
+-
+-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,1,0)
+-#include <linux/types.h> /* used later in this header */
+-
+-#define memcpy_fromio(a,b,c) memcpy((a),(void *)(b),(c))
+-#define memcpy_toio(a,b,c) memcpy((void *)(a),(b),(c))
+-
+-typedef struct wait_queue * wait_queue_head_t;
+-
+-#define DECLARE_WAITQUEUE(x,y) struct wait_queue x = {y,NULL}
+-#define DECLARE_WAIT_QUEUE_HEAD(x) struct wait_queue *x = NULL
+-#define init_waitqueue_head init_waitqueue
+-#define DECLARE_MUTEX(x) struct semaphore x = MUTEX
+-#define DECLARE_MUTEX_LOCKED(x) struct semaphore x = MUTEX_LOCKED
+-
+-/* from sysdep-2.1.h */
+-# include <asm/segment.h>
+-# define access_ok(t,a,sz) (verify_area((t),(a),(sz)) ? 0 : 1)
+-# define verify_area_20 verify_area
+-# define copy_to_user(t,f,n) (memcpy_tofs(t,f,n), 0)
+-# define __copy_to_user(t,f,n) copy_to_user((t),(f),(n))
+-# define copy_to_user_ret(t,f,n,r) copy_to_user((t),(f),(n))
+-# define copy_from_user(t,f,n) (memcpy_fromfs((t),(f),(n)), 0)
+-# define __copy_from_user(t,f,n) copy_from_user((t),(f),(n))
+-# define copy_from_user_ret(t,f,n,r) copy_from_user((t),(f),(n))
+-//xxx # define PUT_USER(val,add) (put_user((val),(add)), 0)
+-# define Put_user(val,add) (put_user((val),(add)), 0)
+-# define __PUT_USER(val,add) PUT_USER((val),(add))
+-# define PUT_USER_RET(val,add,ret) PUT_USER((val),(add))
+-# define GET_USER(dest,add) ((dest)=get_user((add)), 0)
+-# define __GET_USER(dest,add) GET_USER((dest),(add))
+-# define GET_USER_RET(dest,add,ret) GET_USER((dest),(add))
+-
+-#define ioremap(offset,size) vremap(offset,size)
+-#define iounmap(adr) /* */
+-
+-#define EXPORT_SYMBOL(s) /* */
+-#define EXPORT_SYMBOL_NOVERS(s) /* */
+-
+-/* 2.1.10 and 2.1.43 introduced new functions. They are worth using */
+-
+-#if LINUX_VERSION_CODE < VERSION_CODE(2,1,10)
+-
+-# include <asm/byteorder.h>
+-# ifdef __LITTLE_ENDIAN
+-# define cpu_to_le16(x) (x)
+-# define cpu_to_le32(x) (x)
+-# define cpu_to_be16(x) htons((x))
+-# define cpu_to_be32(x) htonl((x))
+-# else
+-# define cpu_to_be16(x) (x)
+-# define cpu_to_be32(x) (x)
+- extern inline __u16 cpu_to_le16(__u16 x) { return (x<<8) | (x>>8);}
+- extern inline __u32 cpu_to_le32(__u32 x) { return((x>>24) |
+- ((x>>8)&0xff00) | ((x<<8)&0xff0000) | (x<<24));}
+-# endif
+-
+-# define le16_to_cpu(x) cpu_to_le16(x)
+-# define le32_to_cpu(x) cpu_to_le32(x)
+-# define be16_to_cpu(x) cpu_to_be16(x)
+-# define be32_to_cpu(x) cpu_to_be32(x)
+-
+-#endif
+-
+-#if LINUX_VERSION_CODE < VERSION_CODE(2,1,43)
+-# define cpu_to_le16p(addr) (cpu_to_le16(*(addr)))
+-# define cpu_to_le32p(addr) (cpu_to_le32(*(addr)))
+-# define cpu_to_be16p(addr) (cpu_to_be16(*(addr)))
+-# define cpu_to_be32p(addr) (cpu_to_be32(*(addr)))
+-
+- extern inline void cpu_to_le16s(__u16 *a) {*a = cpu_to_le16(*a);}
+- extern inline void cpu_to_le32s(__u16 *a) {*a = cpu_to_le32(*a);}
+- extern inline void cpu_to_be16s(__u16 *a) {*a = cpu_to_be16(*a);}
+- extern inline void cpu_to_be32s(__u16 *a) {*a = cpu_to_be32(*a);}
+-
+-# define le16_to_cpup(x) cpu_to_le16p(x)
+-# define le32_to_cpup(x) cpu_to_le32p(x)
+-# define be16_to_cpup(x) cpu_to_be16p(x)
+-# define be32_to_cpup(x) cpu_to_be32p(x)
+-
+-# define le16_to_cpus(x) cpu_to_le16s(x)
+-# define le32_to_cpus(x) cpu_to_le32s(x)
+-# define be16_to_cpus(x) cpu_to_be16s(x)
+-# define be32_to_cpus(x) cpu_to_be32s(x)
+-#endif
+-
+-// from 2.2, linux/types.h
+-#ifndef __BIT_TYPES_DEFINED__
+-#define __BIT_TYPES_DEFINED__
+-
+-typedef __u8 u_int8_t;
+-typedef __s8 int8_t;
+-typedef __u16 u_int16_t;
+-typedef __s16 int16_t;
+-typedef __u32 u_int32_t;
+-typedef __s32 int32_t;
+-
+-#endif /* !(__BIT_TYPES_DEFINED__) */
+-
+-#if (__GNUC__ > 2) || (__GNUC__ == 2 && __GNUC_MINOR__ >= 8)
+- typedef struct { } spinlock_t;
+- #define SPIN_LOCK_UNLOCKED (spinlock_t) { }
+-#else
+- typedef struct { int gcc_is_buggy; } spinlock_t;
+- #define SPIN_LOCK_UNLOCKED (spinlock_t) { 0 }
+-#endif
+-
+-#define spin_lock_init(lock) do { } while(0)
+-#define spin_lock(lock) (void)(lock) /* Not "unused variable". */
+-#define spin_trylock(lock) (1)
+-#define spin_unlock_wait(lock) do { } while(0)
+-#define spin_unlock(lock) do { } while(0)
+-#define spin_lock_irq(lock) cli()
+-#define spin_unlock_irq(lock) sti()
+-
+-#define spin_lock_irqsave(lock, flags) \
+- do { save_flags(flags); cli(); } while (0)
+-#define spin_unlock_irqrestore(lock, flags) \
+- restore_flags(flags)
+-
+-// Doesn't work when tqueue.h is included.
+-// #define queue_task queue_task_irq_off
+-#define tty_flip_buffer_push(tty) queue_task_irq_off(&tty->flip.tqueue, &tq_timer)
+-#define signal_pending(current) (current->signal & ~current->blocked)
+-#define schedule_timeout(to) do {current->timeout = jiffies + (to);schedule ();} while (0)
+-#define time_after(t1,t2) (((long)t1-t2) > 0)
+-
+-#else
+- #include <linux/compatmac.h>
+-#endif // LINUX_VERSION_CODE < 0x020100
+-
+-
+-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,1,0)
+-#include <linux/vmalloc.h>
+-#endif
+-
+-/* Modularization issues */
+-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,1,18)
+-# define __USE_OLD_SYMTAB__
+-# define EXPORT_NO_SYMBOLS register_symtab(NULL);
+-# define REGISTER_SYMTAB(tab) register_symtab(tab)
+-#else
+-# define REGISTER_SYMTAB(tab) /* nothing */
+-#endif
+-
+-#ifdef __USE_OLD_SYMTAB__
+-# define __MODULE_STRING(s) /* nothing */
+-# define MODULE_PARM(v,t) /* nothing */
+-# define MODULE_PARM_DESC(v,t) /* nothing */
+-# define MODULE_AUTHOR(n) /* nothing */
+-# define MODULE_DESCRIPTION(d) /* nothing */
+-# define MODULE_SUPPORTED_DEVICE(n) /* nothing */
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,10)
++#error "This kernel is too old: not supported by this file"
+ #endif
+
+-/*
+- * "select" changed in 2.1.23. The implementation is twin, but this
+- * header is new
+- */
+-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,1,22)
+-# include <linux/poll.h>
+-#else
+-# define __USE_OLD_SELECT__
+-#endif
++ /* O(1) scheduler stuff. */
+
+-/* Other change in the fops are solved using pseudo-types */
+-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,1,0)
+-# define lseek_t long long
+-# define lseek_off_t long long
+-#else
+-# define lseek_t int
+-# define lseek_off_t off_t
+-#endif
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,5) && !defined(__rh_config_h__)
++#include <linux/sched.h>
++static inline void __recalc_sigpending(void)
++{
++ recalc_sigpending(current);
++}
++#undef recalc_sigpending
++#define recalc_sigpending() __recalc_sigpending ()
+
+-/* changed the prototype of read/write */
++#define set_user_nice(tsk, n) do { (tsk)->nice = n; } while(0)
+
+-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,1,0) || defined(__alpha__)
+-# define count_t unsigned long
+-# define read_write_t long
+-#else
+-# define count_t int
+-# define read_write_t int
+ #endif
+
+
+-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,1,31)
+-# define release_t void
+-# define release_return(x) return
+-#else
+-# define release_t int
+-# define release_return(x) return (x)
+-#endif
+-
+-#if LINUX_VERSION_CODE < 0x20300
+-#define __exit
+-#endif
+-#if LINUX_VERSION_CODE < 0x20200
+-#define __init
+-#else
+-#include <linux/init.h>
+-#endif
+
+-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,2,18)
+-#define init_MUTEX(x) do {*(x) = MUTEX;} while (0)
+-#define init_MUTEX_LOCKED(x) do {*(x) = MUTEX_LOCKED;} while (0)
+-#endif
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,20)
+
+-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,3,0)
+-#define RQFUNC_ARG void
+-#define blkdev_dequeue_request(req) do {CURRENT = req->next;} while (0)
+-#else
+-#define RQFUNC_ARG request_queue_t *q
++#ifndef yield
++#define yield() do { set_current_state(TASK_RUNNING); schedule(); } while(0)
+ #endif
+
+-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,3,32)
+-#define blk_cleanup_queue(nr) do {blk_dev[nr].request_fn = 0;} while(0)
+-#define BLK_DEFAULT_QUEUE(nr) (blk_dev[nr].request_fn)
+-#define blk_init_queue(q, rq) do {q = rq;} while(0)
++#ifndef minor
++#define major(d) (MAJOR(to_kdev_t(d)))
++#define minor(d) (MINOR(to_kdev_t(d)))
+ #endif
+
+-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,2,0)
+-#ifdef CONFIG_MODULES
+-#define __MOD_INC_USE_COUNT(mod) \
+- (atomic_inc(&(mod)->uc.usecount), (mod)->flags |= MOD_VISITED|MOD_USED_ONCE)
+-#define __MOD_DEC_USE_COUNT(mod) \
+- (atomic_dec(&(mod)->uc.usecount), (mod)->flags |= MOD_VISITED)
+-#else
+-#define __MOD_INC_USE_COUNT(mod)
+-#define __MOD_DEC_USE_COUNT(mod)
+-#endif
++#ifndef mk_kdev
++#define mk_kdev(ma,mi) MKDEV(ma,mi)
++#define kdev_t_to_nr(x) (x)
+ #endif
+
++#define need_resched() (current->need_resched)
++#define cond_resched() do { if need_resched() { yield(); } } while(0)
+
+-#ifndef HAVE_INTER_MODULE
+-static inline void *inter_module_get(char *x) {return NULL;}
+-static inline void *inter_module_get_request(char *x, char *y) {return NULL;}
+-static inline void inter_module_put(const char *x) {}
+-static inline void inter_module_register(const char *x, struct module *y, const void *z) {}
+-static inline void inter_module_unregister(const char *x) {}
++#endif /* < 2.4.20 */
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,73)
++#define iminor(i) minor((i)->i_rdev)
++#define imajor(i) major((i)->i_rdev)
++#define old_encode_dev(d) ( (major(d)<<8) | minor(d) )
++#define old_decode_dev(rdev) (kdev_t_to_nr(mk_kdev((rdev)>>8, (rdev)&0xff)))
++#define old_valid_dev(d) (1)
+ #endif
+
+-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,2,18)
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,61)
+
+-#define DECLARE_WAIT_QUEUE_HEAD(x) struct wait_queue *x = NULL
+-#define init_waitqueue_head init_waitqueue
++#include <linux/sched.h>
+
++#ifdef __rh_config_h__
++#define sigmask_lock sighand->siglock
++#define sig sighand
+ #endif
+
+-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,3,0)
+-
+-static inline int try_inc_mod_count(struct module *mod)
++static inline void __daemonize_modvers(void)
+ {
+-#ifdef CONFIG_MODULES
+- if (mod)
+- __MOD_INC_USE_COUNT(mod);
+-#endif
+- return 1;
+-}
+-#endif
++ daemonize();
+
++ spin_lock_irq(&current->sigmask_lock);
++ sigfillset(&current->blocked);
++ recalc_sigpending();
++ spin_unlock_irq(&current->sigmask_lock);
++}
++#undef daemonize
++#define daemonize(fmt, ...) do { \
++ snprintf(current->comm, sizeof(current->comm), fmt ,##__VA_ARGS__); \
++ __daemonize_modvers(); \
++ } while(0)
+
+-/* Yes, I'm aware that it's a fairly ugly hack.
+- Until the __constant_* macros appear in Linus' own kernels, this is
+- the way it has to be done.
+- DW 19/1/00
+- */
+-
+-#include <asm/byteorder.h>
+-
+-#ifndef __constant_cpu_to_le16
+-
+-#ifdef __BIG_ENDIAN
+-#define __constant_cpu_to_le64(x) ___swab64((x))
+-#define __constant_le64_to_cpu(x) ___swab64((x))
+-#define __constant_cpu_to_le32(x) ___swab32((x))
+-#define __constant_le32_to_cpu(x) ___swab32((x))
+-#define __constant_cpu_to_le16(x) ___swab16((x))
+-#define __constant_le16_to_cpu(x) ___swab16((x))
+-#define __constant_cpu_to_be64(x) ((__u64)(x))
+-#define __constant_be64_to_cpu(x) ((__u64)(x))
+-#define __constant_cpu_to_be32(x) ((__u32)(x))
+-#define __constant_be32_to_cpu(x) ((__u32)(x))
+-#define __constant_cpu_to_be16(x) ((__u16)(x))
+-#define __constant_be16_to_cpu(x) ((__u16)(x))
+-#else
+-#ifdef __LITTLE_ENDIAN
+-#define __constant_cpu_to_le64(x) ((__u64)(x))
+-#define __constant_le64_to_cpu(x) ((__u64)(x))
+-#define __constant_cpu_to_le32(x) ((__u32)(x))
+-#define __constant_le32_to_cpu(x) ((__u32)(x))
+-#define __constant_cpu_to_le16(x) ((__u16)(x))
+-#define __constant_le16_to_cpu(x) ((__u16)(x))
+-#define __constant_cpu_to_be64(x) ___swab64((x))
+-#define __constant_be64_to_cpu(x) ___swab64((x))
+-#define __constant_cpu_to_be32(x) ___swab32((x))
+-#define __constant_be32_to_cpu(x) ___swab32((x))
+-#define __constant_cpu_to_be16(x) ___swab16((x))
+-#define __constant_be16_to_cpu(x) ___swab16((x))
+-#else
+-#error No (recognised) endianness defined (unless it,s PDP)
+-#endif /* __LITTLE_ENDIAN */
+-#endif /* __BIG_ENDIAN */
+-
+-#endif /* ifndef __constant_cpu_to_le16 */
+-
+-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,3,0)
+- #define mod_init_t int __init
+- #define mod_exit_t void
+-#else
+- #define mod_init_t static int __init
+- #define mod_exit_t static void __exit
+-#endif
+-
+-#ifndef THIS_MODULE
+-#ifdef MODULE
+-#define THIS_MODULE (&__this_module)
+-#else
+-#define THIS_MODULE (NULL)
+-#endif
+-#endif
+-
+-#if LINUX_VERSION_CODE < 0x20300
+-#include <linux/interrupt.h>
+-#define spin_lock_bh(lock) do {start_bh_atomic();spin_lock(lock);}while(0)
+-#define spin_unlock_bh(lock) do {spin_unlock(lock);end_bh_atomic();}while(0)
+-#else
+-#include <asm/softirq.h>
+-#include <linux/spinlock.h>
+-#endif
+-
+-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,2,18)
+-#define set_current_state(state_value) \
+- do { current->state = (state_value); } while (0)
+-#endif
+-
+-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,2,0)
+-static inline int invalidate_device(kdev_t dev, int do_sync) {
++static inline int dequeue_signal_lock(struct task_struct *tsk, sigset_t *mask, siginfo_t *info)
++{
++ unsigned long flags;
++ unsigned long ret;
+
+- if (do_sync)
+- fsync_dev(dev);
++ spin_lock_irqsave(&current->sigmask_lock, flags);
++ ret = dequeue_signal(mask, info);
++ spin_unlock_irqrestore(&current->sigmask_lock, flags);
+
+- invalidate_buffers(dev);
+- return 0;
++ return ret;
+ }
+-#elif LINUX_VERSION_CODE < KERNEL_VERSION(2,4,5)
+-static inline int invalidate_device(kdev_t dev, int do_sync) {
+- struct super_block *sb = get_super(dev);
+- int res = 0;
+
+- if (do_sync)
+- fsync_dev(dev);
+-
+- if (sb)
+- res = invalidate_inodes(sb);
++static inline int allow_signal(int sig)
++{
++ if (sig < 1 || sig > _NSIG)
++ return -EINVAL;
+
+- invalidate_buffers(dev);
+- return res;
++ spin_lock_irq(&current->sigmask_lock);
++ sigdelset(&current->blocked, sig);
++ recalc_sigpending();
++ /* Make sure the kernel neither eats it now converts to SIGKILL */
++ current->sig->action[sig-1].sa.sa_handler = (void *)2;
++ spin_unlock_irq(&current->sigmask_lock);
++ return 0;
+ }
+-#endif
+-
+-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,10)
+-#undef min
+-#undef max
+-#undef min_t
+-#undef max_t
+-/*
+- * min()/max() macros that also do
+- * strict type-checking.. See the
+- * "unnecessary" pointer comparison.
+- */
+-#define min(x,y) ({ \
+- const typeof(x) _x = (x); \
+- const typeof(y) _y = (y); \
+- (void) (&_x == &_y); \
+- _x < _y ? _x : _y; })
+-
+-#define max(x,y) ({ \
+- const typeof(x) _x = (x); \
+- const typeof(y) _y = (y); \
+- (void) (&_x == &_y); \
+- _x > _y ? _x : _y; })
+-
+-/*
+- * ..and if you can't take the strict
+- * types, you can specify one yourself.
+- *
+- * Or not use min/max at all, of course.
+- */
+-#define min_t(type,x,y) \
+- ({ type __x = (x); type __y = (y); __x < __y ? __x: __y; })
+-#define max_t(type,x,y) \
+- ({ type __x = (x); type __y = (y); __x > __y ? __x: __y; })
+-#endif
+-
+-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,7)
+-struct completion {
+- struct semaphore s;
+-};
+-
+-#define complete(c) up(&(c)->s)
+-#define wait_for_completion(c) down(&(c)->s)
+-#define init_completion(c) init_MUTEX_LOCKED(&(c)->s);
+-
+-#endif
+-
+-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,9)
+-/* This came later */
+-#define complete_and_exit(c, r) do { complete(c); do_exit(r); } while(0)
+-#endif
+-
+-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,9) || \
+- (LINUX_VERSION_CODE < KERNEL_VERSION(2,4,10) && !defined(__rh_config_h__))
++static inline int disallow_signal(int sig)
++{
++ if (sig < 1 || sig > _NSIG)
++ return -EINVAL;
+
+-#include <linux/genhd.h>
++ spin_lock_irq(&current->sigmask_lock);
++ sigaddset(&current->blocked, sig);
++ recalc_sigpending();
+
+-static inline void add_gendisk(struct gendisk *gp)
+-{
+- gp->next = gendisk_head;
+- gendisk_head = gp;
++ current->sig->action[sig-1].sa.sa_handler = SIG_DFL;
++ spin_unlock_irq(&current->sigmask_lock);
++ return 0;
+ }
+
+-static inline void del_gendisk(struct gendisk *gp)
+-{
+- struct gendisk *gd, **gdp;
++#undef sighand
++#undef sigmask_lock
+
+- for (gdp = &gendisk_head; *gdp; gdp = &((*gdp)->next))
+- if (*gdp == gp) {
+- gd = *gdp; *gdp = gd->next;
+- break;
+- }
+-}
++#define PF_FREEZE 0
++#define refrigerator(x) do { ; } while(0)
+ #endif
+
+-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,2,18) && defined(MODULE)
++ /* Module bits */
+
+-#define module_init(func) \
+-mod_init_t init_module(void) { \
+- return func(); \
+-}
+
+-#define module_exit(func) \
+-mod_exit_t cleanup_module(void) { \
+- return func(); \
+-}
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,60)
++#define try_module_get(m) try_inc_mod_count(m)
++#define __module_get(m) do { if (!try_inc_mod_count(m)) BUG(); } while(0)
++#define module_put(m) do { if (m) __MOD_DEC_USE_COUNT((struct module *)(m)); } while(0)
++#define set_module_owner(x) do { x->owner = THIS_MODULE; } while(0)
+ #endif
+
+-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,9) || \
+- (LINUX_VERSION_CODE < KERNEL_VERSION(2,4,10) && !defined(__rh_config_h__))
+-#define MODULE_LICENSE(x) /* */
+-#endif
+
+-/* Removed for 2.4.21 kernel. This really should have been renamed
+- when it was changed -- this is a PITA */
+-#if 0 && LINUX_VERSION_CODE < KERNEL_VERSION(2,5,5)
+-#include <linux/sched.h>
+-static inline void __recalc_sigpending(void)
+-{
+- recalc_sigpending(current);
+-}
+-#undef recalc_sigpending
+-#define recalc_sigpending() __recalc_sigpending ()
+-#endif
++ /* Random filesystem stuff, only for JFFS2 really */
+
+ #if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,5)
+ #define parent_ino(d) ((d)->d_parent->d_inode->i_ino)
+ #endif
+
+-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,3)
+-#define need_resched() (current->need_resched)
+-#define cond_resched() do { if need_resched() schedule(); } while(0)
+-#endif
+-
+-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,19)
+-#ifndef yield
+-#define yield() do { set_current_state(TASK_RUNNING); schedule(); } while(0)
+-#endif
+-#ifndef minor
+-#define major(d) (MAJOR(to_kdev_t(d)))
+-#define minor(d) (MINOR(to_kdev_t(d)))
+-#endif
+-#ifndef mk_kdev
+-#define mk_kdev(ma,mi) MKDEV(ma,mi)
+-#define kdev_t_to_nr(x) (x)
+-#endif
+-#endif
+-
+-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,0)
+- /* Is this right? */
+-#define set_user_nice(tsk, n) do { (tsk)->priority = 20-(n); } while(0)
+-#elif LINUX_VERSION_CODE < KERNEL_VERSION(2,4,21) && !defined(RED_HAT_LINUX_KERNEL)
+-#define set_user_nice(tsk, n) do { (tsk)->nice = n; } while(0)
+-#endif
+-
+-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,21)
+-#define rq_data_dir(x) ((x)->cmd)
+-#endif
+-
+-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
+-
+-#define IS_REQ_CMD(req) (1)
+-
+-#define QUEUE_LOCK(q) (&io_request_lock)
+-
+-#define BLK_INIT_QUEUE(q, req, lock) blk_init_queue((q), (req))
+-
+-#else /* > 2.5.0 */
+-
+-#define IS_REQ_CMD(req) ((req)->flags & REQ_CMD)
+-
+-#define QUEUE_LOCK(q) ((q)->queue_lock)
+-
+-#define BLK_INIT_QUEUE(q, req, lock) blk_init_queue((q), (req), (lock))
+-
+-#endif
+-
+-/* Removed cos it broke stuff. Where is this required anyway?
+- * #ifndef QUEUE_EMPTY
+- * #define QUEUE_EMPTY (!CURRENT)
+- * #endif
+- */
+-#if LINUX_VERSION_CODE < 0x20300
+-#define QUEUE_PLUGGED (blk_dev[MAJOR_NR].plug_tq.sync)
+-#elif LINUX_VERSION_CODE < 0x20500 //FIXME (Si)
+-#define QUEUE_PLUGGED (blk_dev[MAJOR_NR].request_queue.plugged)
+-#else
+-#define QUEUE_PLUGGED (blk_queue_plugged(QUEUE))
+-#endif
+-
+-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,14)
+-#define BLK_INC_USE_COUNT MOD_INC_USE_COUNT
+-#define BLK_DEC_USE_COUNT MOD_DEC_USE_COUNT
+-#else
+-#define BLK_INC_USE_COUNT do {} while(0)
+-#define BLK_DEC_USE_COUNT do {} while(0)
+-#endif
+-
+ #if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,12)
+ #define PageUptodate(x) Page_Uptodate(x)
+ #endif
+@@ -580,4 +159,31 @@
+ #define generic_file_readonly_mmap generic_file_mmap
+ #endif
+
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,70)
++
++#include <linux/kmod.h>
++#include <linux/string.h>
++
++static inline char *strlcpy(char *dest, const char *src, int len)
++{
++ dest[len-1] = 0;
++ return strncpy(dest, src, len-1);
++}
++
++static inline int do_old_request_module(const char *mod)
++{
++ return request_module(mod);
++}
++#undef request_module
++#define request_module(fmt, ...) \
++ ({ char modname[32]; snprintf(modname, 31, fmt ,##__VA_ARGS__); do_old_request_module(modname); })
++
++#endif /* 2.5.70 */
++
++#ifndef container_of
++#define container_of(ptr, type, member) ({ \
++ const typeof( ((type *)0)->member ) *__mptr = (ptr); \
++ (type *)( (char *)__mptr - offsetof(type,member) );})
++#endif
++
+ #endif /* __LINUX_MTD_COMPATMAC_H__ */
+diff -Nurb linux-mips-2.4.27/include/linux/mtd/doc2000.h linux/include/linux/mtd/doc2000.h
+--- linux-mips-2.4.27/include/linux/mtd/doc2000.h 2001-11-05 21:16:30.000000000 +0100
++++ linux/include/linux/mtd/doc2000.h 2004-11-19 10:25:12.044177752 +0100
+@@ -1,13 +1,21 @@
+-
+-/* Linux driver for Disk-On-Chip 2000 */
+-/* (c) 1999 Machine Vision Holdings, Inc. */
+-/* Author: David Woodhouse <dwmw2@mvhi.com> */
+-/* $Id: doc2000.h,v 1.15 2001/09/19 00:22:15 dwmw2 Exp $ */
++/*
++ * Linux driver for Disk-On-Chip devices
++ *
++ * Copyright (C) 1999 Machine Vision Holdings, Inc.
++ * Copyright (C) 2001-2003 David Woodhouse <dwmw2@infradead.org>
++ * Copyright (C) 2002-2003 Greg Ungerer <gerg@snapgear.com>
++ * Copyright (C) 2002-2003 SnapGear Inc
++ *
++ * $Id: doc2000.h,v 1.22 2003/11/05 10:51:36 dwmw2 Exp $
++ *
++ * Released under GPL
++ */
+
+ #ifndef __MTD_DOC2000_H__
+ #define __MTD_DOC2000_H__
+
+ #include <linux/mtd/mtd.h>
++#include <asm/semaphore.h>
+
+ #define DoC_Sig1 0
+ #define DoC_Sig2 1
+@@ -38,18 +46,47 @@
+ #define DoC_Mil_CDSN_IO 0x0800
+ #define DoC_2k_CDSN_IO 0x1800
+
++#define DoC_Mplus_NOP 0x1002
++#define DoC_Mplus_AliasResolution 0x1004
++#define DoC_Mplus_DOCControl 0x1006
++#define DoC_Mplus_AccessStatus 0x1008
++#define DoC_Mplus_DeviceSelect 0x1008
++#define DoC_Mplus_Configuration 0x100a
++#define DoC_Mplus_OutputControl 0x100c
++#define DoC_Mplus_FlashControl 0x1020
++#define DoC_Mplus_FlashSelect 0x1022
++#define DoC_Mplus_FlashCmd 0x1024
++#define DoC_Mplus_FlashAddress 0x1026
++#define DoC_Mplus_FlashData0 0x1028
++#define DoC_Mplus_FlashData1 0x1029
++#define DoC_Mplus_ReadPipeInit 0x102a
++#define DoC_Mplus_LastDataRead 0x102c
++#define DoC_Mplus_LastDataRead1 0x102d
++#define DoC_Mplus_WritePipeTerm 0x102e
++#define DoC_Mplus_ECCSyndrome0 0x1040
++#define DoC_Mplus_ECCSyndrome1 0x1041
++#define DoC_Mplus_ECCSyndrome2 0x1042
++#define DoC_Mplus_ECCSyndrome3 0x1043
++#define DoC_Mplus_ECCSyndrome4 0x1044
++#define DoC_Mplus_ECCSyndrome5 0x1045
++#define DoC_Mplus_ECCConf 0x1046
++#define DoC_Mplus_Toggle 0x1046
++#define DoC_Mplus_DownloadStatus 0x1074
++#define DoC_Mplus_CtrlConfirm 0x1076
++#define DoC_Mplus_Power 0x1fff
++
+ /* How to access the device?
+ * On ARM, it'll be mmap'd directly with 32-bit wide accesses.
+ * On PPC, it's mmap'd and 16-bit wide.
+ * Others use readb/writeb
+ */
+ #if defined(__arm__)
+-#define ReadDOC_(adr, reg) ((unsigned char)(*(__u32 *)(((unsigned long)adr)+((reg)<<2))))
+-#define WriteDOC_(d, adr, reg) do{ *(__u32 *)(((unsigned long)adr)+((reg)<<2)) = (__u32)d; wmb();} while(0)
++#define ReadDOC_(adr, reg) ((unsigned char)(*(volatile __u32 *)(((unsigned long)adr)+((reg)<<2))))
++#define WriteDOC_(d, adr, reg) do{ *(volatile __u32 *)(((unsigned long)adr)+((reg)<<2)) = (__u32)d; wmb();} while(0)
+ #define DOC_IOREMAP_LEN 0x8000
+ #elif defined(__ppc__)
+-#define ReadDOC_(adr, reg) ((unsigned char)(*(__u16 *)(((unsigned long)adr)+((reg)<<1))))
+-#define WriteDOC_(d, adr, reg) do{ *(__u16 *)(((unsigned long)adr)+((reg)<<1)) = (__u16)d; wmb();} while(0)
++#define ReadDOC_(adr, reg) ((unsigned char)(*(volatile __u16 *)(((unsigned long)adr)+((reg)<<1))))
++#define WriteDOC_(d, adr, reg) do{ *(volatile __u16 *)(((unsigned long)adr)+((reg)<<1)) = (__u16)d; wmb();} while(0)
+ #define DOC_IOREMAP_LEN 0x4000
+ #else
+ #define ReadDOC_(adr, reg) readb(((unsigned long)adr) + (reg))
+@@ -71,13 +108,21 @@
+ #define DOC_MODE_RESERVED1 2
+ #define DOC_MODE_RESERVED2 3
+
+-#define DOC_MODE_MDWREN 4
+ #define DOC_MODE_CLR_ERR 0x80
++#define DOC_MODE_RST_LAT 0x10
++#define DOC_MODE_BDECT 0x08
++#define DOC_MODE_MDWREN 0x04
+
+ #define DOC_ChipID_Doc2k 0x20
++#define DOC_ChipID_Doc2kTSOP 0x21 /* internal number for MTD */
+ #define DOC_ChipID_DocMil 0x30
++#define DOC_ChipID_DocMilPlus32 0x40
++#define DOC_ChipID_DocMilPlus16 0x41
+
+ #define CDSN_CTRL_FR_B 0x80
++#define CDSN_CTRL_FR_B0 0x40
++#define CDSN_CTRL_FR_B1 0x80
++
+ #define CDSN_CTRL_ECC_IO 0x20
+ #define CDSN_CTRL_FLASH_IO 0x10
+ #define CDSN_CTRL_WP 0x08
+@@ -93,6 +138,10 @@
+ #define DOC_ECC_RESV 0x02
+ #define DOC_ECC_IGNORE 0x01
+
++#define DOC_FLASH_CE 0x80
++#define DOC_FLASH_WP 0x40
++#define DOC_FLASH_BANK 0x02
++
+ /* We have to also set the reserved bit 1 for enable */
+ #define DOC_ECC_EN (DOC_ECC__EN | DOC_ECC_RESV)
+ #define DOC_ECC_DIS (DOC_ECC_RESV)
+@@ -107,9 +156,12 @@
+ #define MAX_FLOORS 4
+ #define MAX_CHIPS 4
+
+-#define MAX_FLOORS_MIL 4
++#define MAX_FLOORS_MIL 1
+ #define MAX_CHIPS_MIL 1
+
++#define MAX_FLOORS_MPLUS 2
++#define MAX_CHIPS_MPLUS 1
++
+ #define ADDR_COLUMN 1
+ #define ADDR_PAGE 2
+ #define ADDR_COLUMN_PAGE 3
+@@ -118,7 +170,7 @@
+ unsigned long physadr;
+ unsigned long virtadr;
+ unsigned long totlen;
+- char ChipID; /* Type of DiskOnChip */
++ unsigned char ChipID; /* Type of DiskOnChip */
+ int ioreg;
+
+ unsigned long mfr; /* Flash IDs - only one type of flash per device */
+@@ -126,6 +178,7 @@
+ int chipshift;
+ char page256;
+ char pageadrlen;
++ char interleave; /* Internal interleaving - Millennium Plus style */
+ unsigned long erasesize;
+
+ int curfloor;
+diff -Nurb linux-mips-2.4.27/include/linux/mtd/flashchip.h linux/include/linux/mtd/flashchip.h
+--- linux-mips-2.4.27/include/linux/mtd/flashchip.h 2003-02-26 01:53:51.000000000 +0100
++++ linux/include/linux/mtd/flashchip.h 2004-11-19 10:25:12.045177600 +0100
+@@ -6,7 +6,7 @@
+ *
+ * (C) 2000 Red Hat. GPLd.
+ *
+- * $Id: flashchip.h,v 1.8 2002/10/21 13:20:52 jocke Exp $
++ * $Id: flashchip.h,v 1.10 2004/01/27 10:16:20 dvrabel Exp $
+ *
+ */
+
+@@ -58,6 +58,11 @@
+ int ref_point_counter;
+ flstate_t state;
+ flstate_t oldstate;
++
++ int write_suspended:1;
++ int erase_suspended:1;
++ unsigned long in_progress_block_addr;
++
+ spinlock_t *mutex;
+ spinlock_t _spinlock; /* We do it like this because sometimes they'll be shared. */
+ wait_queue_head_t wq; /* Wait on here when we're waiting for the chip
+diff -Nurb linux-mips-2.4.27/include/linux/mtd/gen_probe.h linux/include/linux/mtd/gen_probe.h
+--- linux-mips-2.4.27/include/linux/mtd/gen_probe.h 2001-11-05 21:16:30.000000000 +0100
++++ linux/include/linux/mtd/gen_probe.h 2004-11-19 10:25:12.048177144 +0100
+@@ -1,7 +1,7 @@
+ /*
+ * (C) 2001, 2001 Red Hat, Inc.
+ * GPL'd
+- * $Id: gen_probe.h,v 1.1 2001/09/02 18:50:13 dwmw2 Exp $
++ * $Id: gen_probe.h,v 1.2 2003/11/08 00:51:21 dsaxena Exp $
+ */
+
+ #ifndef __LINUX_MTD_GEN_PROBE_H__
+@@ -10,12 +10,12 @@
+ #include <linux/mtd/flashchip.h>
+ #include <linux/mtd/map.h>
+ #include <linux/mtd/cfi.h>
++#include <asm/bitops.h>
+
+ struct chip_probe {
+ char *name;
+ int (*probe_chip)(struct map_info *map, __u32 base,
+- struct flchip *chips, struct cfi_private *cfi);
+-
++ unsigned long *chip_map, struct cfi_private *cfi);
+ };
+
+ struct mtd_info *mtd_do_chip_probe(struct map_info *map, struct chip_probe *cp);
+diff -Nurb linux-mips-2.4.27/include/linux/mtd/inftl.h linux/include/linux/mtd/inftl.h
+--- linux-mips-2.4.27/include/linux/mtd/inftl.h 1970-01-01 01:00:00.000000000 +0100
++++ linux/include/linux/mtd/inftl.h 2004-11-19 10:25:12.051176688 +0100
+@@ -0,0 +1,129 @@
++/*
++ * inftl.h -- defines to support the Inverse NAND Flash Translation Layer
++ *
++ * (C) Copyright 2002, Greg Ungerer (gerg@snapgear.com)
++ *
++ * $Id: inftl.h,v 1.4 2003/06/29 16:15:46 dwmw2 Exp $
++ */
++
++#ifndef __MTD_INFTL_H__
++#define __MTD_INFTL_H__
++
++#include <linux/mtd/blktrans.h>
++#include <linux/mtd/mtd.h>
++#include <linux/mtd/nftl.h>
++
++#define OSAK_VERSION 0x5120
++#define PERCENTUSED 98
++
++#define SECTORSIZE 512
++
++#ifndef INFTL_MAJOR
++#define INFTL_MAJOR 94
++#endif
++#define INFTL_PARTN_BITS 4
++
++/* Block Control Information */
++
++struct inftl_bci {
++ __u8 ECCsig[6];
++ __u8 Status;
++ __u8 Status1;
++} __attribute__((packed));
++
++struct inftl_unithead1 {
++ __u16 virtualUnitNo;
++ __u16 prevUnitNo;
++ __u8 ANAC;
++ __u8 NACs;
++ __u8 parityPerField;
++ __u8 discarded;
++} __attribute__((packed));
++
++struct inftl_unithead2 {
++ __u8 parityPerField;
++ __u8 ANAC;
++ __u16 prevUnitNo;
++ __u16 virtualUnitNo;
++ __u8 NACs;
++ __u8 discarded;
++} __attribute__((packed));
++
++struct inftl_unittail {
++ __u8 Reserved[4];
++ __u16 EraseMark;
++ __u16 EraseMark1;
++} __attribute__((packed));
++
++union inftl_uci {
++ struct inftl_unithead1 a;
++ struct inftl_unithead2 b;
++ struct inftl_unittail c;
++};
++
++struct inftl_oob {
++ struct inftl_bci b;
++ union inftl_uci u;
++};
++
++
++/* INFTL Media Header */
++
++struct INFTLPartition {
++ __u32 virtualUnits;
++ __u32 firstUnit;
++ __u32 lastUnit;
++ __u32 flags;
++ __u32 spareUnits;
++ __u32 Reserved0;
++ __u32 Reserved1;
++} __attribute__((packed));
++
++struct INFTLMediaHeader {
++ char bootRecordID[8];
++ __u32 NoOfBootImageBlocks;
++ __u32 NoOfBinaryPartitions;
++ __u32 NoOfBDTLPartitions;
++ __u32 BlockMultiplierBits;
++ __u32 FormatFlags;
++ __u32 OsakVersion;
++ __u32 PercentUsed;
++ struct INFTLPartition Partitions[4];
++} __attribute__((packed));
++
++/* Partition flag types */
++#define INFTL_BINARY 0x20000000
++#define INFTL_BDTL 0x40000000
++#define INFTL_LAST 0x80000000
++
++
++#ifdef __KERNEL__
++
++struct INFTLrecord {
++ struct mtd_blktrans_dev mbd;
++ __u16 MediaUnit, SpareMediaUnit;
++ __u32 EraseSize;
++ struct INFTLMediaHeader MediaHdr;
++ int usecount;
++ unsigned char heads;
++ unsigned char sectors;
++ unsigned short cylinders;
++ __u16 numvunits;
++ __u16 firstEUN;
++ __u16 lastEUN;
++ __u16 numfreeEUNs;
++ __u16 LastFreeEUN; /* To speed up finding a free EUN */
++ int head,sect,cyl;
++ __u16 *PUtable; /* Physical Unit Table */
++ __u16 *VUtable; /* Virtual Unit Table */
++ unsigned int nb_blocks; /* number of physical blocks */
++ unsigned int nb_boot_blocks; /* number of blocks used by the bios */
++ struct erase_info instr;
++};
++
++int INFTL_mount(struct INFTLrecord *s);
++int INFTL_formatblock(struct INFTLrecord *s, int block);
++
++#endif /* __KERNEL__ */
++
++#endif /* __MTD_INFTL_H__ */
+diff -Nurb linux-mips-2.4.27/include/linux/mtd/jedec.h linux/include/linux/mtd/jedec.h
+--- linux-mips-2.4.27/include/linux/mtd/jedec.h 2001-12-02 12:35:00.000000000 +0100
++++ linux/include/linux/mtd/jedec.h 2004-11-19 10:25:12.052176536 +0100
+@@ -7,14 +7,13 @@
+ *
+ * See the AMD flash databook for information on how to operate the interface.
+ *
+- * $Id: jedec.h,v 1.2 2001/11/06 14:37:36 dwmw2 Exp $
++ * $Id: jedec.h,v 1.3 2003/05/21 11:51:01 dwmw2 Exp $
+ */
+
+ #ifndef __LINUX_MTD_JEDEC_H__
+ #define __LINUX_MTD_JEDEC_H__
+
+ #include <linux/types.h>
+-#include <linux/mtd/map.h>
+
+ #define MAX_JEDEC_CHIPS 16
+
+diff -Nurb linux-mips-2.4.27/include/linux/mtd/map.h linux/include/linux/mtd/map.h
+--- linux-mips-2.4.27/include/linux/mtd/map.h 2003-02-26 01:53:51.000000000 +0100
++++ linux/include/linux/mtd/map.h 2004-11-19 10:25:12.054176232 +0100
+@@ -1,14 +1,15 @@
+
+ /* Overhauled routines for dealing with different mmap regions of flash */
+-/* $Id: map.h,v 1.29 2002/10/21 13:20:52 jocke Exp $ */
++/* $Id: map.h,v 1.34 2003/05/28 12:42:22 dwmw2 Exp $ */
+
+ #ifndef __LINUX_MTD_MAP_H__
+ #define __LINUX_MTD_MAP_H__
+
+ #include <linux/config.h>
+ #include <linux/types.h>
+-#include <linux/mtd/mtd.h>
+-#include <linux/slab.h>
++#include <linux/list.h>
++#include <asm/system.h>
++#include <asm/io.h>
+
+ /* The map stuff is very simple. You fill in your struct map_info with
+ a handful of routines for accessing the device, making sure they handle
+@@ -29,39 +30,44 @@
+ struct map_info {
+ char *name;
+ unsigned long size;
++ unsigned long phys;
++#define NO_XIP (-1UL)
++
++ unsigned long virt;
++ void *cached;
++
+ int buswidth; /* in octets */
+- __u8 (*read8)(struct map_info *, unsigned long);
+- __u16 (*read16)(struct map_info *, unsigned long);
+- __u32 (*read32)(struct map_info *, unsigned long);
+- __u64 (*read64)(struct map_info *, unsigned long);
++
++#ifdef CONFIG_MTD_COMPLEX_MAPPINGS
++ u8 (*read8)(struct map_info *, unsigned long);
++ u16 (*read16)(struct map_info *, unsigned long);
++ u32 (*read32)(struct map_info *, unsigned long);
++ u64 (*read64)(struct map_info *, unsigned long);
+ /* If it returned a 'long' I'd call it readl.
+ * It doesn't.
+ * I won't.
+ * dwmw2 */
+
+ void (*copy_from)(struct map_info *, void *, unsigned long, ssize_t);
+- void (*write8)(struct map_info *, __u8, unsigned long);
+- void (*write16)(struct map_info *, __u16, unsigned long);
+- void (*write32)(struct map_info *, __u32, unsigned long);
+- void (*write64)(struct map_info *, __u64, unsigned long);
++ void (*write8)(struct map_info *, u8, unsigned long);
++ void (*write16)(struct map_info *, u16, unsigned long);
++ void (*write32)(struct map_info *, u32, unsigned long);
++ void (*write64)(struct map_info *, u64, unsigned long);
+ void (*copy_to)(struct map_info *, unsigned long, const void *, ssize_t);
+
+- u_char * (*point) (struct map_info *, loff_t, size_t);
+- void (*unpoint) (struct map_info *, u_char *, loff_t, size_t);
+-
++ /* We can perhaps put in 'point' and 'unpoint' methods, if we really
++ want to enable XIP for non-linear mappings. Not yet though. */
++#endif
++ /* set_vpp() must handle being reentered -- enable, enable, disable
++ must leave it enabled. */
+ void (*set_vpp)(struct map_info *, int);
+- /* We put these two here rather than a single void *map_priv,
+- because we want mappers to be able to have quickly-accessible
+- cache for the 'currently-mapped page' without the _extra_
+- redirection that would be necessary. If you need more than
+- two longs, turn the second into a pointer. dwmw2 */
++
+ unsigned long map_priv_1;
+ unsigned long map_priv_2;
+ void *fldrv_priv;
+ struct mtd_chip_driver *fldrv;
+ };
+
+-
+ struct mtd_chip_driver {
+ struct mtd_info *(*probe)(struct map_info *map);
+ void (*destroy)(struct mtd_info *);
+@@ -74,26 +80,93 @@
+ void unregister_mtd_chip_driver(struct mtd_chip_driver *);
+
+ struct mtd_info *do_map_probe(const char *name, struct map_info *map);
++void map_destroy(struct mtd_info *mtd);
++
++#define ENABLE_VPP(map) do { if(map->set_vpp) map->set_vpp(map, 1); } while(0)
++#define DISABLE_VPP(map) do { if(map->set_vpp) map->set_vpp(map, 0); } while(0)
++
++#ifdef CONFIG_MTD_COMPLEX_MAPPINGS
++#define map_read8(map, ofs) (map)->read8(map, ofs)
++#define map_read16(map, ofs) (map)->read16(map, ofs)
++#define map_read32(map, ofs) (map)->read32(map, ofs)
++#define map_read64(map, ofs) (map)->read64(map, ofs)
++#define map_copy_from(map, to, from, len) (map)->copy_from(map, to, from, len)
++#define map_write8(map, datum, ofs) (map)->write8(map, datum, ofs)
++#define map_write16(map, datum, ofs) (map)->write16(map, datum, ofs)
++#define map_write32(map, datum, ofs) (map)->write32(map, datum, ofs)
++#define map_write64(map, datum, ofs) (map)->write64(map, datum, ofs)
++#define map_copy_to(map, to, from, len) (map)->copy_to(map, to, from, len)
+
++extern void simple_map_init(struct map_info *);
++#define map_is_linear(map) (map->phys != NO_XIP)
+
+-/*
+- * Destroy an MTD device which was created for a map device.
+- * Make sure the MTD device is already unregistered before calling this
+- */
+-static inline void map_destroy(struct mtd_info *mtd)
+-{
+- struct map_info *map = mtd->priv;
+-
+- if (map->fldrv->destroy)
+- map->fldrv->destroy(mtd);
+-#ifdef CONFIG_MODULES
+- if (map->fldrv->module)
+- __MOD_DEC_USE_COUNT(map->fldrv->module);
++#else
++static inline u8 map_read8(struct map_info *map, unsigned long ofs)
++{
++ return __raw_readb(map->virt + ofs);
++}
++
++static inline u16 map_read16(struct map_info *map, unsigned long ofs)
++{
++ return __raw_readw(map->virt + ofs);
++}
++
++static inline u32 map_read32(struct map_info *map, unsigned long ofs)
++{
++ return __raw_readl(map->virt + ofs);
++}
++
++static inline u64 map_read64(struct map_info *map, unsigned long ofs)
++{
++#ifndef CONFIG_MTD_CFI_B8 /* 64-bit mappings */
++ BUG();
++ return 0;
++#else
++ return __raw_readll(map->virt + ofs);
+ #endif
+- kfree(mtd);
+ }
+
+-#define ENABLE_VPP(map) do { if(map->set_vpp) map->set_vpp(map, 1); } while(0)
+-#define DISABLE_VPP(map) do { if(map->set_vpp) map->set_vpp(map, 0); } while(0)
++static inline void map_write8(struct map_info *map, u8 datum, unsigned long ofs)
++{
++ __raw_writeb(datum, map->virt + ofs);
++ mb();
++}
++
++static inline void map_write16(struct map_info *map, u16 datum, unsigned long ofs)
++{
++ __raw_writew(datum, map->virt + ofs);
++ mb();
++}
++
++static inline void map_write32(struct map_info *map, u32 datum, unsigned long ofs)
++{
++ __raw_writel(datum, map->virt + ofs);
++ mb();
++}
++
++static inline void map_write64(struct map_info *map, u64 datum, unsigned long ofs)
++{
++#ifndef CONFIG_MTD_CFI_B8 /* 64-bit mappings */
++ BUG();
++#else
++ __raw_writell(datum, map->virt + ofs);
++ mb();
++#endif /* CFI_B8 */
++}
++
++static inline void map_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
++{
++ memcpy_fromio(to, map->virt + from, len);
++}
++
++static inline void map_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
++{
++ memcpy_toio(map->virt + to, from, len);
++}
++
++#define simple_map_init(map) do { } while (0)
++#define map_is_linear(map) (1)
++
++#endif /* !CONFIG_MTD_COMPLEX_MAPPINGS */
+
+ #endif /* __LINUX_MTD_MAP_H__ */
+diff -Nurb linux-mips-2.4.27/include/linux/mtd/mtd.h linux/include/linux/mtd/mtd.h
+--- linux-mips-2.4.27/include/linux/mtd/mtd.h 2003-08-13 19:19:29.000000000 +0200
++++ linux/include/linux/mtd/mtd.h 2004-11-19 10:25:12.055176080 +0100
+@@ -1,5 +1,10 @@
+-
+-/* $Id: mtd.h,v 1.38 2003/01/12 16:30:19 spse Exp $ */
++/*
++ * $Id: mtd.h,v 1.46 2003/07/11 07:36:21 dwmw2 Exp $
++ *
++ * Copyright (C) 1999-2003 David Woodhouse <dwmw2@infradead.org> et al.
++ *
++ * Released under GPL
++ */
+
+ #ifndef __MTD_MTD_H__
+ #define __MTD_MTD_H__
+@@ -9,7 +14,6 @@
+ #include <linux/config.h>
+ #include <linux/version.h>
+ #include <linux/types.h>
+-#include <linux/mtd/compatmac.h>
+ #include <linux/module.h>
+ #include <linux/uio.h>
+
+@@ -26,7 +30,6 @@
+ unsigned char *ptr;
+ };
+
+-
+ #define MTD_CHAR_MAJOR 90
+ #define MTD_BLOCK_MAJOR 31
+ #define MAX_MTD_DEVICES 16
+@@ -93,18 +96,23 @@
+ #define MEMUNLOCK _IOW('M', 6, struct erase_info_user)
+ #define MEMGETREGIONCOUNT _IOR('M', 7, int)
+ #define MEMGETREGIONINFO _IOWR('M', 8, struct region_info_user)
+-#define MEMREADDATA _IOWR('M', 9, struct mtd_oob_buf)
+-#define MEMWRITEDATA _IOWR('M', 10, struct mtd_oob_buf)
++#define MEMSETOOBSEL _IOW('M', 9, struct nand_oobinfo)
++
++struct nand_oobinfo {
++ int useecc;
++ int eccpos[6];
++};
++
+
+ #ifndef __KERNEL__
+
+ typedef struct mtd_info_user mtd_info_t;
+ typedef struct erase_info_user erase_info_t;
+ typedef struct region_info_user region_info_t;
++typedef struct nand_oobinfo nand_oobinfo_t;
+
+ /* User-space ioctl definitions */
+
+-
+ #else /* __KERNEL__ */
+
+
+@@ -150,10 +158,14 @@
+ u_int32_t ecctype;
+ u_int32_t eccsize;
+
++
+ // Kernel-only stuff starts here.
+ char *name;
+ int index;
+
++ // oobinfo is a nand_oobinfo structure, which can be set by iotcl (MEMSETOOBINFO)
++ struct nand_oobinfo oobinfo;
++
+ /* Data for variable erase regions. If numeraseregions is zero,
+ * it means that the whole device has erasesize as given above.
+ */
+@@ -163,7 +175,6 @@
+ /* This really shouldn't be here. It can go away in 2.5 */
+ u_int32_t bank_size;
+
+- struct module *module;
+ int (*erase) (struct mtd_info *mtd, struct erase_info *instr);
+
+ /* This stuff for eXecute-In-Place */
+@@ -176,8 +187,8 @@
+ int (*read) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf);
+ int (*write) (struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf);
+
+- int (*read_ecc) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf, u_char *eccbuf, int oobsel);
+- int (*write_ecc) (struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf, u_char *eccbuf, int oobsel);
++ int (*read_ecc) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf, u_char *eccbuf, struct nand_oobinfo *oobsel);
++ int (*write_ecc) (struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf, u_char *eccbuf, struct nand_oobinfo *oobsel);
+
+ int (*read_oob) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf);
+ int (*write_oob) (struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf);
+@@ -201,10 +212,10 @@
+ */
+ int (*readv) (struct mtd_info *mtd, struct iovec *vecs, unsigned long count, loff_t from, size_t *retlen);
+ int (*readv_ecc) (struct mtd_info *mtd, struct iovec *vecs, unsigned long count, loff_t from,
+- size_t *retlen, u_char *eccbuf, int oobsel);
++ size_t *retlen, u_char *eccbuf, struct nand_oobinfo *oobsel);
+ int (*writev) (struct mtd_info *mtd, const struct iovec *vecs, unsigned long count, loff_t to, size_t *retlen);
+ int (*writev_ecc) (struct mtd_info *mtd, const struct iovec *vecs, unsigned long count, loff_t to,
+- size_t *retlen, u_char *eccbuf, int oobsel);
++ size_t *retlen, u_char *eccbuf, struct nand_oobinfo *oobsel);
+
+ /* Sync */
+ void (*sync) (struct mtd_info *mtd);
+@@ -218,6 +229,9 @@
+ void (*resume) (struct mtd_info *mtd);
+
+ void *priv;
++
++ struct module *owner;
++ int usecount;
+ };
+
+
+@@ -226,31 +240,15 @@
+ extern int add_mtd_device(struct mtd_info *mtd);
+ extern int del_mtd_device (struct mtd_info *mtd);
+
+-extern struct mtd_info *__get_mtd_device(struct mtd_info *mtd, int num);
+-
+-static inline struct mtd_info *get_mtd_device(struct mtd_info *mtd, int num)
+-{
+- struct mtd_info *ret;
++extern struct mtd_info *get_mtd_device(struct mtd_info *mtd, int num);
+
+- ret = __get_mtd_device(mtd, num);
+-
+- if (ret && ret->module && !try_inc_mod_count(ret->module))
+- return NULL;
+-
+- return ret;
+-}
+-
+-static inline void put_mtd_device(struct mtd_info *mtd)
+-{
+- if (mtd->module)
+- __MOD_DEC_USE_COUNT(mtd->module);
+-}
++extern void put_mtd_device(struct mtd_info *mtd);
+
+
+ struct mtd_notifier {
+ void (*add)(struct mtd_info *mtd);
+ void (*remove)(struct mtd_info *mtd);
+- struct mtd_notifier *next;
++ struct list_head list;
+ };
+
+
+@@ -263,7 +261,6 @@
+ int default_mtd_readv(struct mtd_info *mtd, struct iovec *vecs,
+ unsigned long count, loff_t from, size_t *retlen);
+
+-#ifndef MTDC
+ #define MTD_ERASE(mtd, args...) (*(mtd->erase))(mtd, args)
+ #define MTD_POINT(mtd, a,b,c,d) (*(mtd->point))(mtd, a,b,c, (u_char **)(d))
+ #define MTD_UNPOINT(mtd, arg) (*(mtd->unpoint))(mtd, (u_char *)arg)
+@@ -276,7 +273,6 @@
+ #define MTD_READOOB(mtd, args...) (*(mtd->read_oob))(mtd, args)
+ #define MTD_WRITEOOB(mtd, args...) (*(mtd->write_oob))(mtd, args)
+ #define MTD_SYNC(mtd) do { if (mtd->sync) (*(mtd->sync))(mtd); } while (0)
+-#endif /* MTDC */
+
+ /*
+ * Debugging macro and defines
+@@ -293,7 +289,8 @@
+ printk(KERN_INFO args); \
+ } while(0)
+ #else /* CONFIG_MTD_DEBUG */
+-#define DEBUG(n, args...)
++#define DEBUG(n, args...) do { } while(0)
++
+ #endif /* CONFIG_MTD_DEBUG */
+
+ #endif /* __KERNEL__ */
+diff -Nurb linux-mips-2.4.27/include/linux/mtd/nand.h linux/include/linux/mtd/nand.h
+--- linux-mips-2.4.27/include/linux/mtd/nand.h 2003-02-26 01:53:51.000000000 +0100
++++ linux/include/linux/mtd/nand.h 2004-11-19 10:25:12.057175776 +0100
+@@ -2,10 +2,10 @@
+ * linux/include/linux/mtd/nand.h
+ *
+ * Copyright (c) 2000 David Woodhouse <dwmw2@mvhi.com>
+- * Steven J. Hill <sjhill@cotw.com>
++ * Steven J. Hill <sjhill@realitydiluted.com>
+ * Thomas Gleixner <tglx@linutronix.de>
+ *
+- * $Id: nand.h,v 1.19 2002/12/02 21:48:17 gleixner Exp $
++ * $Id: nand.h,v 1.31 2003/07/11 15:07:02 dwmw2 Exp $
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+@@ -49,12 +49,14 @@
+ #define __LINUX_MTD_NAND_H
+
+ #include <linux/config.h>
+-#include <linux/sched.h>
++#include <linux/wait.h>
++#include <linux/spinlock.h>
+
++struct mtd_info;
+ /*
+ * Searches for a NAND device
+ */
+-extern int nand_scan (struct mtd_info *mtd);
++extern int nand_scan (struct mtd_info *mtd, int max_chips);
+
+ /*
+ * Constants for hardware specific CLE/ALE/NCE function
+@@ -65,6 +67,8 @@
+ #define NAND_CTL_CLRCLE 4
+ #define NAND_CTL_SETALE 5
+ #define NAND_CTL_CLRALE 6
++#define NAND_CTL_SETWP 7
++#define NAND_CTL_CLRWP 8
+
+ /*
+ * Standard NAND flash commands
+@@ -160,24 +164,33 @@
+ struct nand_chip {
+ unsigned long IO_ADDR_R;
+ unsigned long IO_ADDR_W;
+- void (*hwcontrol)(int cmd);
+- int (*dev_ready)(void);
++
++ u_char (*read_byte)(struct mtd_info *mtd);
++ void (*write_byte)(struct mtd_info *mtd, u_char byte);
++
++ void (*write_buf)(struct mtd_info *mtd, const u_char *buf, int len);
++ void (*read_buf)(struct mtd_info *mtd, u_char *buf, int len);
++ int (*verify_buf)(struct mtd_info *mtd, const u_char *buf, int len);
++ void (*select_chip)(struct mtd_info *mtd, int chip);
++ int (*block_bad)(struct mtd_info *mtd, unsigned long pos);
++ void (*hwcontrol)(struct mtd_info *mtd, int cmd);
++ int (*dev_ready)(struct mtd_info *mtd);
+ void (*cmdfunc)(struct mtd_info *mtd, unsigned command, int column, int page_addr);
+ int (*waitfunc)(struct mtd_info *mtd, struct nand_chip *this, int state);
+- void (*calculate_ecc)(const u_char *dat, u_char *ecc_code);
+- int (*correct_data)(u_char *dat, u_char *read_ecc, u_char *calc_ecc);
+- void (*enable_hwecc)(int mode);
++ void (*calculate_ecc)(struct mtd_info *mtd, const u_char *dat, u_char *ecc_code);
++ int (*correct_data)(struct mtd_info *mtd, u_char *dat, u_char *read_ecc, u_char *calc_ecc);
++ void (*enable_hwecc)(struct mtd_info *mtd, int mode);
+ int eccmode;
+ int eccsize;
+ int chip_delay;
++ int chipshift;
+ spinlock_t chip_lock;
+ wait_queue_head_t wq;
+ nand_state_t state;
+ int page_shift;
+ u_char *data_buf;
+ u_char *data_poi;
+- u_char *data_cache;
+- int cache_page;
++ void *priv;
+ };
+
+ /*
+@@ -241,34 +254,4 @@
+ */
+ #define NAND_BADBLOCK_POS 5
+
+-#define NAND_NONE_OOB 0
+-#define NAND_JFFS2_OOB 1
+-#define NAND_YAFFS_OOB 2
+-
+-#define NAND_NOOB_ECCPOS0 0
+-#define NAND_NOOB_ECCPOS1 1
+-#define NAND_NOOB_ECCPOS2 2
+-#define NAND_NOOB_ECCPOS3 3
+-#define NAND_NOOB_ECCPOS4 6
+-#define NAND_NOOB_ECCPOS5 7
+-
+-#define NAND_JFFS2_OOB_ECCPOS0 0
+-#define NAND_JFFS2_OOB_ECCPOS1 1
+-#define NAND_JFFS2_OOB_ECCPOS2 2
+-#define NAND_JFFS2_OOB_ECCPOS3 3
+-#define NAND_JFFS2_OOB_ECCPOS4 6
+-#define NAND_JFFS2_OOB_ECCPOS5 7
+-
+-#define NAND_YAFFS_OOB_ECCPOS0 8
+-#define NAND_YAFFS_OOB_ECCPOS1 9
+-#define NAND_YAFFS_OOB_ECCPOS2 10
+-#define NAND_YAFFS_OOB_ECCPOS3 13
+-#define NAND_YAFFS_OOB_ECCPOS4 14
+-#define NAND_YAFFS_OOB_ECCPOS5 15
+-
+-#define NAND_JFFS2_OOB8_FSDAPOS 6
+-#define NAND_JFFS2_OOB16_FSDAPOS 8
+-#define NAND_JFFS2_OOB8_FSDALEN 2
+-#define NAND_JFFS2_OOB16_FSDALEN 8
+-
+ #endif /* __LINUX_MTD_NAND_H */
+diff -Nurb linux-mips-2.4.27/include/linux/mtd/nand_ecc.h linux/include/linux/mtd/nand_ecc.h
+--- linux-mips-2.4.27/include/linux/mtd/nand_ecc.h 2001-08-22 05:25:12.000000000 +0200
++++ linux/include/linux/mtd/nand_ecc.h 2004-11-19 10:25:12.058175624 +0100
+@@ -1,9 +1,9 @@
+ /*
+ * drivers/mtd/nand_ecc.h
+ *
+- * Copyright (C) 2000 Steven J. Hill (sjhill@cotw.com)
++ * Copyright (C) 2000 Steven J. Hill (sjhill@realitydiluted.com)
+ *
+- * $Id: nand_ecc.h,v 1.1 2000/10/12 00:57:15 sjhill Exp $
++ * $Id: nand_ecc.h,v 1.3 2003/07/01 23:31:15 dwmw2 Exp $
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+@@ -12,17 +12,19 @@
+ * This file is the header for the ECC algorithm.
+ */
+
+-/*
+- * Creates non-inverted ECC code from line parity
+- */
+-void nand_trans_result(u_char reg2, u_char reg3, u_char *ecc_code);
++#ifndef __MTD_NAND_ECC_H__
++#define __MTD_NAND_ECC_H__
++
++struct mtd_info;
+
+ /*
+ * Calculate 3 byte ECC code for 256 byte block
+ */
+-void nand_calculate_ecc (const u_char *dat, u_char *ecc_code);
++void nand_calculate_ecc(struct mtd_info *mtd, const u_char *dat, u_char *ecc_code);
+
+ /*
+ * Detect and correct a 1 bit error for 256 byte block
+ */
+-int nand_correct_data (u_char *dat, u_char *read_ecc, u_char *calc_ecc);
++int nand_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_ecc, u_char *calc_ecc);
++
++#endif /* __MTD_NAND_ECC_H__ */
+diff -Nurb linux-mips-2.4.27/include/linux/mtd/nftl.h linux/include/linux/mtd/nftl.h
+--- linux-mips-2.4.27/include/linux/mtd/nftl.h 2003-02-26 01:53:51.000000000 +0100
++++ linux/include/linux/mtd/nftl.h 2004-11-19 10:25:12.060175320 +0100
+@@ -1,15 +1,14 @@
+-
+-/* Defines for NAND Flash Translation Layer */
+-/* (c) 1999 Machine Vision Holdings, Inc. */
+-/* Author: David Woodhouse <dwmw2@mvhi.com> */
+-/* $Id: nftl.h,v 1.11 2002/06/18 13:54:24 dwmw2 Exp $ */
++/*
++ * $Id: nftl.h,v 1.13 2003/05/23 11:25:02 dwmw2 Exp $
++ *
++ * (C) 1999-2003 David Woodhouse <dwmw2@infradead.org>
++ */
+
+ #ifndef __MTD_NFTL_H__
+ #define __MTD_NFTL_H__
+
+-#ifndef __BOOT__
+ #include <linux/mtd/mtd.h>
+-#endif
++#include <linux/mtd/blktrans.h>
+
+ /* Block Control Information */
+
+@@ -84,8 +83,7 @@
+ #define BLOCK_RESERVED 0xfffc /* bios block or bad block */
+
+ struct NFTLrecord {
+- struct mtd_info *mtd;
+- struct semaphore mutex;
++ struct mtd_blktrans_dev mbd;
+ __u16 MediaUnit, SpareMediaUnit;
+ __u32 EraseSize;
+ struct NFTLMediaHeader MediaHdr;
+@@ -97,7 +95,6 @@
+ __u16 lastEUN; /* should be suppressed */
+ __u16 numfreeEUNs;
+ __u16 LastFreeEUN; /* To speed up finding a free EUN */
+- __u32 nr_sects;
+ int head,sect,cyl;
+ __u16 *EUNtable; /* [numvunits]: First EUN for each virtual unit */
+ __u16 *ReplUnitTable; /* [numEUNs]: ReplUnitNumber for each */
+@@ -114,7 +111,7 @@
+ #endif
+
+ #define MAX_NFTLS 16
+-#define MAX_SECTORS_PER_UNIT 32
++#define MAX_SECTORS_PER_UNIT 64
+ #define NFTL_PARTN_BITS 4
+
+ #endif /* __KERNEL__ */
+diff -Nurb linux-mips-2.4.27/include/linux/mtd/partitions.h linux/include/linux/mtd/partitions.h
+--- linux-mips-2.4.27/include/linux/mtd/partitions.h 2002-06-27 00:36:47.000000000 +0200
++++ linux/include/linux/mtd/partitions.h 2004-11-19 10:25:12.061175168 +0100
+@@ -5,7 +5,7 @@
+ *
+ * This code is GPL
+ *
+- * $Id: partitions.h,v 1.8 2002/03/08 16:34:36 rkaiser Exp $
++ * $Id: partitions.h,v 1.15 2003/07/09 11:15:43 dwmw2 Exp $
+ */
+
+ #ifndef MTD_PARTITIONS_H
+@@ -41,6 +41,7 @@
+ u_int32_t size; /* partition size */
+ u_int32_t offset; /* offset within the master MTD space */
+ u_int32_t mask_flags; /* master MTD flags to mask out for this partition */
++ struct nand_oobinfo *oobsel; /* out of band layout for this partition (NAND only)*/
+ struct mtd_info **mtdp; /* pointer to store the MTD object */
+ };
+
+@@ -49,8 +50,27 @@
+ #define MTDPART_SIZ_FULL (0)
+
+
+-int add_mtd_partitions(struct mtd_info *, struct mtd_partition *, int);
++int add_mtd_partitions(struct mtd_info *, const struct mtd_partition *, int);
+ int del_mtd_partitions(struct mtd_info *);
+
++/*
++ * Functions dealing with the various ways of partitioning the space
++ */
++
++struct mtd_part_parser {
++ struct list_head list;
++ struct module *owner;
++ const char *name;
++ int (*parse_fn)(struct mtd_info *, struct mtd_partition **, unsigned long);
++};
++
++extern struct mtd_part_parser *get_partition_parser(const char *name);
++extern int register_mtd_parser(struct mtd_part_parser *parser);
++extern int deregister_mtd_parser(struct mtd_part_parser *parser);
++extern int parse_mtd_partitions(struct mtd_info *master, const char **types,
++ struct mtd_partition **pparts, unsigned long origin);
++
++#define put_partition_parser(p) do { module_put((p)->owner); } while(0)
++
+ #endif
+
+diff -Nurb linux-mips-2.4.27/include/linux/mtd/physmap.h linux/include/linux/mtd/physmap.h
+--- linux-mips-2.4.27/include/linux/mtd/physmap.h 1970-01-01 01:00:00.000000000 +0100
++++ linux/include/linux/mtd/physmap.h 2004-11-19 10:25:12.062175016 +0100
+@@ -0,0 +1,59 @@
++/*
++ * For boards with physically mapped flash and using
++ * drivers/mtd/maps/physmap.c mapping driver.
++ *
++ * Copyright (C) 2003 MontaVista Software Inc.
++ * Author: Jun Sun, jsun@mvista.com or jsun@junsun.net
++ *
++ * This program is free software; you can redistribute it and/or modify it
++ * under the terms of the GNU General Public License as published by the
++ * Free Software Foundation; either version 2 of the License, or (at your
++ * option) any later version.
++ *
++ */
++
++#ifndef __LINUX_MTD_PHYSMAP__
++
++#include <linux/config.h>
++
++#if defined(CONFIG_MTD_PHYSMAP)
++
++#include <linux/mtd/mtd.h>
++#include <linux/mtd/map.h>
++#include <linux/mtd/partitions.h>
++
++/*
++ * The map_info for physmap. Board can override size, buswidth, phys,
++ * (*set_vpp)(), etc in their initial setup routine.
++ */
++extern struct map_info physmap_map;
++
++/*
++ * Board needs to specify the exact mapping during their setup time.
++ */
++static inline void physmap_configure(unsigned long addr, unsigned long size, int buswidth, void (*set_vpp)(struct map_info *, int) )
++{
++ physmap_map.phys = addr;
++ physmap_map.size = size;
++ physmap_map.buswidth = buswidth;
++ physmap_map.set_vpp = set_vpp;
++}
++
++#if defined(CONFIG_MTD_PARTITIONS)
++
++/*
++ * Machines that wish to do flash partition may want to call this function in
++ * their setup routine.
++ *
++ * physmap_set_partitions(mypartitions, num_parts);
++ *
++ * Note that one can always override this hard-coded partition with
++ * command line partition (you need to enable CONFIG_MTD_CMDLINE_PARTS).
++ */
++void physmap_set_partitions(struct mtd_partition *parts, int num_parts);
++
++#endif /* defined(CONFIG_MTD_PARTITIONS) */
++#endif /* defined(CONFIG_MTD) */
++
++#endif /* __LINUX_MTD_PHYSMAP__ */
++
+diff -Nurb linux-mips-2.4.27/include/linux/rbtree-24.h linux/include/linux/rbtree-24.h
+--- linux-mips-2.4.27/include/linux/rbtree-24.h 1970-01-01 01:00:00.000000000 +0100
++++ linux/include/linux/rbtree-24.h 2004-11-19 10:25:12.143162704 +0100
+@@ -0,0 +1,133 @@
++/*
++ Red Black Trees
++ (C) 1999 Andrea Arcangeli <andrea@suse.de>
++
++ This program is free software; you can redistribute it and/or modify
++ it under the terms of the GNU General Public License as published by
++ the Free Software Foundation; either version 2 of the License, or
++ (at your option) any later version.
++
++ This program is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ GNU General Public License for more details.
++
++ You should have received a copy of the GNU General Public License
++ along with this program; if not, write to the Free Software
++ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
++
++ linux/include/linux/rbtree.h
++
++ To use rbtrees you'll have to implement your own insert and search cores.
++ This will avoid us to use callbacks and to drop drammatically performances.
++ I know it's not the cleaner way, but in C (not in C++) to get
++ performances and genericity...
++
++ Some example of insert and search follows here. The search is a plain
++ normal search over an ordered tree. The insert instead must be implemented
++ int two steps: as first thing the code must insert the element in
++ order as a red leaf in the tree, then the support library function
++ rb_insert_color() must be called. Such function will do the
++ not trivial work to rebalance the rbtree if necessary.
++
++-----------------------------------------------------------------------
++static inline struct page * rb_search_page_cache(struct inode * inode,
++ unsigned long offset)
++{
++ rb_node_t * n = inode->i_rb_page_cache.rb_node;
++ struct page * page;
++
++ while (n)
++ {
++ page = rb_entry(n, struct page, rb_page_cache);
++
++ if (offset < page->offset)
++ n = n->rb_left;
++ else if (offset > page->offset)
++ n = n->rb_right;
++ else
++ return page;
++ }
++ return NULL;
++}
++
++static inline struct page * __rb_insert_page_cache(struct inode * inode,
++ unsigned long offset,
++ rb_node_t * node)
++{
++ rb_node_t ** p = &inode->i_rb_page_cache.rb_node;
++ rb_node_t * parent = NULL;
++ struct page * page;
++
++ while (*p)
++ {
++ parent = *p;
++ page = rb_entry(parent, struct page, rb_page_cache);
++
++ if (offset < page->offset)
++ p = &(*p)->rb_left;
++ else if (offset > page->offset)
++ p = &(*p)->rb_right;
++ else
++ return page;
++ }
++
++ rb_link_node(node, parent, p);
++
++ return NULL;
++}
++
++static inline struct page * rb_insert_page_cache(struct inode * inode,
++ unsigned long offset,
++ rb_node_t * node)
++{
++ struct page * ret;
++ if ((ret = __rb_insert_page_cache(inode, offset, node)))
++ goto out;
++ rb_insert_color(node, &inode->i_rb_page_cache);
++ out:
++ return ret;
++}
++-----------------------------------------------------------------------
++*/
++
++#ifndef _LINUX_RBTREE_H
++#define _LINUX_RBTREE_H
++
++#include <linux/kernel.h>
++#include <linux/stddef.h>
++
++typedef struct rb_node_s
++{
++ struct rb_node_s * rb_parent;
++ int rb_color;
++#define RB_RED 0
++#define RB_BLACK 1
++ struct rb_node_s * rb_right;
++ struct rb_node_s * rb_left;
++}
++rb_node_t;
++
++typedef struct rb_root_s
++{
++ struct rb_node_s * rb_node;
++}
++rb_root_t;
++
++#define RB_ROOT (rb_root_t) { NULL, }
++#define rb_entry(ptr, type, member) \
++ ((type *)((char *)(ptr)-(unsigned long)(&((type *)0)->member)))
++
++extern void rb_insert_color(rb_node_t *, rb_root_t *);
++extern void rb_erase(rb_node_t *, rb_root_t *);
++
++static inline void rb_link_node(rb_node_t * node, rb_node_t * parent, rb_node_t ** rb_link)
++{
++ node->rb_parent = parent;
++ node->rb_color = RB_RED;
++ node->rb_left = node->rb_right = NULL;
++
++ *rb_link = node;
++}
++
++#endif /* _LINUX_RBTREE_H */
+diff -Nurb linux-mips-2.4.27/include/linux/rbtree.h linux/include/linux/rbtree.h
+--- linux-mips-2.4.27/include/linux/rbtree.h 2001-10-19 03:25:03.000000000 +0200
++++ linux/include/linux/rbtree.h 2004-11-19 10:25:12.148161944 +0100
+@@ -1,133 +1,25 @@
+ /*
+- Red Black Trees
+- (C) 1999 Andrea Arcangeli <andrea@suse.de>
++ * 2.5 compatibility
++ * $Id: rbtree.h,v 1.3 2003/01/14 13:56:05 dwmw2 Exp $
++ */
++
++#ifndef __MTD_COMPAT_RBTREE_H__
++#define __MTD_COMPAT_RBTREE_H__
++
++#include <linux/version.h>
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,40)
++#include_next <linux/rbtree.h>
++#else
++#define rb_node_s rb_node
++#define rb_root_s rb_root
++
++#include <linux/rbtree-24.h>
++
++/* Find logical next and previous nodes in a tree */
++extern struct rb_node *rb_next(struct rb_node *);
++extern struct rb_node *rb_prev(struct rb_node *);
++extern struct rb_node *rb_first(struct rb_root *);
++#endif
+
+- This program is free software; you can redistribute it and/or modify
+- it under the terms of the GNU General Public License as published by
+- the Free Software Foundation; either version 2 of the License, or
+- (at your option) any later version.
+-
+- This program is distributed in the hope that it will be useful,
+- but WITHOUT ANY WARRANTY; without even the implied warranty of
+- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+- GNU General Public License for more details.
+-
+- You should have received a copy of the GNU General Public License
+- along with this program; if not, write to the Free Software
+- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+-
+- linux/include/linux/rbtree.h
+-
+- To use rbtrees you'll have to implement your own insert and search cores.
+- This will avoid us to use callbacks and to drop drammatically performances.
+- I know it's not the cleaner way, but in C (not in C++) to get
+- performances and genericity...
+-
+- Some example of insert and search follows here. The search is a plain
+- normal search over an ordered tree. The insert instead must be implemented
+- int two steps: as first thing the code must insert the element in
+- order as a red leaf in the tree, then the support library function
+- rb_insert_color() must be called. Such function will do the
+- not trivial work to rebalance the rbtree if necessary.
+-
+------------------------------------------------------------------------
+-static inline struct page * rb_search_page_cache(struct inode * inode,
+- unsigned long offset)
+-{
+- rb_node_t * n = inode->i_rb_page_cache.rb_node;
+- struct page * page;
+-
+- while (n)
+- {
+- page = rb_entry(n, struct page, rb_page_cache);
+-
+- if (offset < page->offset)
+- n = n->rb_left;
+- else if (offset > page->offset)
+- n = n->rb_right;
+- else
+- return page;
+- }
+- return NULL;
+-}
+-
+-static inline struct page * __rb_insert_page_cache(struct inode * inode,
+- unsigned long offset,
+- rb_node_t * node)
+-{
+- rb_node_t ** p = &inode->i_rb_page_cache.rb_node;
+- rb_node_t * parent = NULL;
+- struct page * page;
+-
+- while (*p)
+- {
+- parent = *p;
+- page = rb_entry(parent, struct page, rb_page_cache);
+-
+- if (offset < page->offset)
+- p = &(*p)->rb_left;
+- else if (offset > page->offset)
+- p = &(*p)->rb_right;
+- else
+- return page;
+- }
+-
+- rb_link_node(node, parent, p);
+-
+- return NULL;
+-}
+-
+-static inline struct page * rb_insert_page_cache(struct inode * inode,
+- unsigned long offset,
+- rb_node_t * node)
+-{
+- struct page * ret;
+- if ((ret = __rb_insert_page_cache(inode, offset, node)))
+- goto out;
+- rb_insert_color(node, &inode->i_rb_page_cache);
+- out:
+- return ret;
+-}
+------------------------------------------------------------------------
+-*/
+-
+-#ifndef _LINUX_RBTREE_H
+-#define _LINUX_RBTREE_H
+-
+-#include <linux/kernel.h>
+-#include <linux/stddef.h>
+-
+-typedef struct rb_node_s
+-{
+- struct rb_node_s * rb_parent;
+- int rb_color;
+-#define RB_RED 0
+-#define RB_BLACK 1
+- struct rb_node_s * rb_right;
+- struct rb_node_s * rb_left;
+-}
+-rb_node_t;
+-
+-typedef struct rb_root_s
+-{
+- struct rb_node_s * rb_node;
+-}
+-rb_root_t;
+-
+-#define RB_ROOT (rb_root_t) { NULL, }
+-#define rb_entry(ptr, type, member) \
+- ((type *)((char *)(ptr)-(unsigned long)(&((type *)0)->member)))
+-
+-extern void rb_insert_color(rb_node_t *, rb_root_t *);
+-extern void rb_erase(rb_node_t *, rb_root_t *);
+-
+-static inline void rb_link_node(rb_node_t * node, rb_node_t * parent, rb_node_t ** rb_link)
+-{
+- node->rb_parent = parent;
+- node->rb_color = RB_RED;
+- node->rb_left = node->rb_right = NULL;
+-
+- *rb_link = node;
+-}
+-
+-#endif /* _LINUX_RBTREE_H */
++#endif /* __MTD_COMPAT_RBTREE_H__ */
+diff -Nurb linux-mips-2.4.27/include/linux/suspend.h linux/include/linux/suspend.h
+--- linux-mips-2.4.27/include/linux/suspend.h 1970-01-01 01:00:00.000000000 +0100
++++ linux/include/linux/suspend.h 2004-11-19 10:25:12.150161640 +0100
+@@ -0,0 +1,10 @@
++/* $Id: suspend.h,v 1.1 2003/10/13 20:56:47 dwmw2 Exp $ */
++
++#ifndef __MTD_COMPAT_VERSION_H__
++#include <linux/version.h>
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++#include_next <linux/suspend.h>
++#endif
++
++#endif /* __MTD_COMPAT_VERSION_H__ */
+diff -Nurb linux-mips-2.4.27/include/linux/workqueue.h linux/include/linux/workqueue.h
+--- linux-mips-2.4.27/include/linux/workqueue.h 1970-01-01 01:00:00.000000000 +0100
++++ linux/include/linux/workqueue.h 2004-11-19 10:25:12.152161336 +0100
+@@ -0,0 +1,21 @@
++/*
++ * 2.5 compatibility
++ * $Id: workqueue.h,v 1.1 2002/11/11 16:39:10 dwmw2 Exp $
++ */
++
++#ifndef __MTD_COMPAT_WORKQUEUE_H__
++#define __MTD_COMPAT_WORKQUEUE_H__
++
++#include <linux/version.h>
++
++#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,40)
++#include_next <linux/workqueue.h>
++#else
++#include <linux/tqueue.h>
++#define work_struct tq_struct
++#define schedule_work(x) schedule_task(x)
++#define flush_scheduled_work flush_scheduled_tasks
++#define INIT_WORK(x,y,z) INIT_TQUEUE(x,y,z)
++#endif
++
++#endif /* __MTD_COMPAT_WORKQUEUE_H__ */
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-05-13 18:57:55 +0000