diff options
Diffstat (limited to 'recipes/linux/linux-2.6.34/ts72xx/0014-ts7200_nor_flash.patch')
| -rw-r--r-- | recipes/linux/linux-2.6.34/ts72xx/0014-ts7200_nor_flash.patch | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/recipes/linux/linux-2.6.34/ts72xx/0014-ts7200_nor_flash.patch b/recipes/linux/linux-2.6.34/ts72xx/0014-ts7200_nor_flash.patch new file mode 100644 index 0000000000..c76ad361ce --- /dev/null +++ b/recipes/linux/linux-2.6.34/ts72xx/0014-ts7200_nor_flash.patch @@ -0,0 +1,176 @@ +From 116d99d9f45c30d3b1c80b54fed8bf406aa590f7 Mon Sep 17 00:00:00 2001 +From: Matthieu Crapet <mcrapet@gmail.com> +Date: Sat, 19 Jun 2010 16:56:48 +0200 +Subject: [PATCH 14/18] ts7200_nor_flash + +Deal with 8mb or 16mb NOR Flash (TS-7200 only) +--- + drivers/mtd/maps/Kconfig | 15 +++++ + drivers/mtd/maps/Makefile | 1 + + drivers/mtd/maps/ts7200_flash.c | 116 +++++++++++++++++++++++++++++++++++++++ + 3 files changed, 132 insertions(+), 0 deletions(-) + create mode 100644 drivers/mtd/maps/ts7200_flash.c + +diff --git a/drivers/mtd/maps/Kconfig b/drivers/mtd/maps/Kconfig +index aa2807d..5d12903 100644 +--- a/drivers/mtd/maps/Kconfig ++++ b/drivers/mtd/maps/Kconfig +@@ -422,6 +422,21 @@ config MTD_H720X + This enables access to the flash chips on the Hynix evaluation boards. + If you have such a board, say 'Y'. + ++config MTD_TS7200_NOR ++ tristate "CFI Flash device mapped on TS-7200" ++ depends on MTD_CFI && MACH_TS72XX ++ help ++ This provides a map driver for the on-board flash of the Technologic ++ System's TS-7200 board. The 8MB (or 16MB) flash is splitted into 3 partitions ++ which are accessed as separate MTD devices. ++ ++config MTD_TS7200_NOR_SIZE ++ int "Flash size (8 or 16mb)" ++ depends on MTD_TS7200_NOR ++ default "8" ++ help ++ Enter the NOR Flash size of your TS-7200 board. Can be 8 or 16. ++ + # This needs CFI or JEDEC, depending on the cards found. + config MTD_PCI + tristate "PCI MTD driver" +diff --git a/drivers/mtd/maps/Makefile b/drivers/mtd/maps/Makefile +index bb035cd..775c2e7 100644 +--- a/drivers/mtd/maps/Makefile ++++ b/drivers/mtd/maps/Makefile +@@ -56,6 +56,7 @@ obj-$(CONFIG_MTD_DMV182) += dmv182.o + obj-$(CONFIG_MTD_PLATRAM) += plat-ram.o + obj-$(CONFIG_MTD_INTEL_VR_NOR) += intel_vr_nor.o + obj-$(CONFIG_MTD_BFIN_ASYNC) += bfin-async-flash.o ++obj-$(CONFIG_MTD_TS7200_NOR) += ts7200_flash.o + obj-$(CONFIG_MTD_RBTX4939) += rbtx4939-flash.o + obj-$(CONFIG_MTD_VMU) += vmu-flash.o + obj-$(CONFIG_MTD_GPIO_ADDR) += gpio-addr-flash.o +diff --git a/drivers/mtd/maps/ts7200_flash.c b/drivers/mtd/maps/ts7200_flash.c +new file mode 100644 +index 0000000..94fb4f4 +--- /dev/null ++++ b/drivers/mtd/maps/ts7200_flash.c +@@ -0,0 +1,116 @@ ++/* ++ * ts7200_flash.c - mapping for TS-7200 SBCs (8mb NOR flash) ++ * No platform_device resource is used here. All is hardcoded. ++ * ++ * (c) Copyright 2006-2010 Matthieu Crapet <mcrapet@gmail.com> ++ * Based on ts5500_flash.c by Sean Young <sean@mess.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. ++ */ ++ ++#include <linux/module.h> ++#include <linux/types.h> ++#include <linux/kernel.h> ++#include <linux/init.h> ++#include <asm/io.h> ++#include <asm/sizes.h> ++#include <linux/mtd/mtd.h> ++#include <linux/mtd/map.h> ++#include <linux/mtd/partitions.h> ++#include <mach/ep93xx-regs.h> ++ ++ ++static struct mtd_info *mymtd; ++ ++static struct map_info ts7200nor_map = { ++ .name = "Full TS-7200 NOR flash", ++ .size = 0, /* filled in later */ ++ .bankwidth = 2, ++ .phys = EP93XX_CS6_PHYS_BASE, ++}; ++ ++/* ++ * MTD partitioning stuff ++ */ ++#ifdef CONFIG_MTD_PARTITIONS ++ ++#define TS7200_BOOTROM_PART_SIZE (SZ_128K) ++#define TS7200_REDBOOT_PART_SIZE (15*SZ_128K) ++ ++static struct mtd_partition ts7200_nor_parts[] = ++{ ++ { ++ .name = "TS-BOOTROM", ++ .offset = 0, ++ .size = TS7200_BOOTROM_PART_SIZE, ++ .mask_flags = MTD_WRITEABLE, /* force read-only */ ++ }, ++ { ++ .name = "RootFS", ++ .offset = MTDPART_OFS_APPEND, ++ .size = 0, /* filled in later */ ++ }, ++ { ++ .name = "Redboot", ++ .offset = MTDPART_OFS_APPEND, ++ .size = MTDPART_SIZ_FULL, /* up to the end */ ++ } ++}; ++#endif ++ ++static int __init ts7200_nor_init(void) ++{ ++ if (CONFIG_MTD_TS7200_NOR_SIZE <= 8) ++ ts7200nor_map.size = SZ_8M; ++ else ++ ts7200nor_map.size = SZ_16M; ++ ++ printk(KERN_NOTICE "TS-7200 flash mapping: %ldmo at 0x%x\n", ++ ts7200nor_map.size / SZ_1M, ts7200nor_map.phys); ++ ++ ts7200nor_map.virt = ioremap(ts7200nor_map.phys, ts7200nor_map.size - 1); ++ if (!ts7200nor_map.virt) { ++ printk("ts7200_flash: failed to ioremap\n"); ++ return -EIO; ++ } ++ ++ simple_map_init(&ts7200nor_map); ++ mymtd = do_map_probe("cfi_probe", &ts7200nor_map); ++ if (mymtd) { ++ mymtd->owner = THIS_MODULE; ++ add_mtd_device(mymtd); ++ #ifdef CONFIG_MTD_PARTITIONS ++ ts7200_nor_parts[1].size = ts7200nor_map.size - TS7200_REDBOOT_PART_SIZE; ++ return add_mtd_partitions(mymtd, ts7200_nor_parts, ARRAY_SIZE(ts7200_nor_parts)); ++ #else ++ return 0; ++ #endif ++ } ++ ++ iounmap(ts7200nor_map.virt); ++ return -ENXIO; ++} ++ ++static void __exit ts7200_nor_exit(void) ++{ ++ if (mymtd) { ++ del_mtd_device(mymtd); ++ map_destroy(mymtd); ++ mymtd = NULL; ++ } ++ if (ts7200nor_map.virt) { ++ iounmap(ts7200nor_map.virt); ++ ts7200nor_map.virt = 0; ++ } ++} ++ ++module_init(ts7200_nor_init); ++module_exit(ts7200_nor_exit); ++ ++MODULE_LICENSE("GPL"); ++MODULE_AUTHOR("Matthieu Crapet <mcrapet@gmail.com>"); ++MODULE_DESCRIPTION("MTD map driver for TS-7200 board"); ++MODULE_VERSION("0.1"); +-- +1.7.1 + |