diff options
Diffstat (limited to 'recipes-kernel/linux/linux-yocto-3.14/collie/collie-LH28F640BF.patch')
-rw-r--r-- | recipes-kernel/linux/linux-yocto-3.14/collie/collie-LH28F640BF.patch | 97 |
1 files changed, 0 insertions, 97 deletions
diff --git a/recipes-kernel/linux/linux-yocto-3.14/collie/collie-LH28F640BF.patch b/recipes-kernel/linux/linux-yocto-3.14/collie/collie-LH28F640BF.patch deleted file mode 100644 index ce3e1b9..0000000 --- a/recipes-kernel/linux/linux-yocto-3.14/collie/collie-LH28F640BF.patch +++ /dev/null @@ -1,97 +0,0 @@ -From 4a141aadc97f6493d3af58238acb681c41ef496d Mon Sep 17 00:00:00 2001 -From: Andrea Adami <andrea.adami@gmail.com> -Date: Sat, 31 May 2014 00:23:51 +0200 -Subject: [PATCH] mtd: cfi_cmdset_0001.c: add support for Sharp LH28F640BF NOR - -This family of chips was long ago supported by the pre-cfi driver. -CFI code tested on several Zaurus SL-5500 (Collie) 2x16 on 32 bit bus. - -Function is_LH28F640BF() mimics is_m29ew() from cmdset_0002.c - -Buffer write fixes as seen in 2007 patch c/o -Anti Sullin <anti.sullin <at> artecdesign.ee> -http://comments.gmane.org/gmane.linux.ports.arm.kernel/36733 - -Signed-off-by: Andrea Adami <andrea.adami@gmail.com> ---- - drivers/mtd/chips/cfi_cmdset_0001.c | 43 +++++++++++++++++++++++++++++++++++++ - 1 file changed, 43 insertions(+) - -diff --git a/drivers/mtd/chips/cfi_cmdset_0001.c b/drivers/mtd/chips/cfi_cmdset_0001.c -index e4ec355..a7543ba 100644 ---- a/drivers/mtd/chips/cfi_cmdset_0001.c -+++ b/drivers/mtd/chips/cfi_cmdset_0001.c -@@ -52,6 +52,11 @@ - /* Atmel chips */ - #define AT49BV640D 0x02de - #define AT49BV640DT 0x02db -+/* Sharp chips */ -+#define LH28F640BFHE_PTTL90 0x00b0 -+#define LH28F640BFHE_PBTL90 0x00b1 -+#define LH28F640BFHE_PTTL70A 0x00b2 -+#define LH28F640BFHE_PBTL70A 0x00b3 - - static int cfi_intelext_read (struct mtd_info *, loff_t, size_t, size_t *, u_char *); - static int cfi_intelext_write_words(struct mtd_info *, loff_t, size_t, size_t *, const u_char *); -@@ -258,6 +263,36 @@ static void fixup_st_m28w320cb(struct mtd_info *mtd) - (cfi->cfiq->EraseRegionInfo[1] & 0xffff0000) | 0x3e; - }; - -+static int is_LH28F640BF(struct cfi_private *cfi) -+{ -+ /* Sharp LH28F640BF Family */ -+ if (cfi->mfr == CFI_MFR_SHARP && ( -+ cfi->id == LH28F640BFHE_PTTL90 || cfi->id == LH28F640BFHE_PBTL90 || -+ cfi->id == LH28F640BFHE_PTTL70A || cfi->id == LH28F640BFHE_PBTL70A)) -+ return 1; -+ return 0; -+} -+ -+static void fixup_LH28F640BF(struct mtd_info *mtd) -+{ -+ struct map_info *map = mtd->priv; -+ struct cfi_private *cfi = map->fldrv_priv; -+ struct cfi_pri_intelext *extp = cfi->cmdset_priv; -+ -+ /* Reset the Partition Configuration Register on LH28F640BF -+ * to a single partition (PCR = 0x000): PCR is embedded into A0-A15. */ -+ if (is_LH28F640BF(cfi)) { -+ printk(KERN_INFO "Reset Partition Config. Register: 1 Partition of 4 planes\n"); -+ map_write(map, CMD(0x60), 0); -+ map_write(map, CMD(0x04), 0); -+ -+ /* We have set one single partition thus -+ * Simultaneous Operations are not allowed */ -+ printk(KERN_INFO "cfi_cmdset_0001: Simultaneous Operations disabled\n"); -+ extp->FeatureSupport &= ~512; -+ } -+} -+ - static void fixup_use_point(struct mtd_info *mtd) - { - struct map_info *map = mtd->priv; -@@ -309,6 +344,8 @@ static struct cfi_fixup cfi_fixup_table[] = { - { CFI_MFR_ST, 0x00ba, /* M28W320CT */ fixup_st_m28w320ct }, - { CFI_MFR_ST, 0x00bb, /* M28W320CB */ fixup_st_m28w320cb }, - { CFI_MFR_INTEL, CFI_ID_ANY, fixup_unlock_powerup_lock }, -+ { CFI_MFR_SHARP, CFI_ID_ANY, fixup_unlock_powerup_lock }, -+ { CFI_MFR_SHARP, CFI_ID_ANY, fixup_LH28F640BF }, - { 0, 0, NULL } - }; - -@@ -1649,6 +1686,12 @@ static int __xipram do_write_buffer(struct map_info *map, struct flchip *chip, - initial_adr = adr; - cmd_adr = adr & ~(wbufsize-1); - -+ /* Sharp LH28F640BF chips need the first address for the -+ * Page Buffer Program command. See Table 5 of -+ * LH28F320BF, LH28F640BF, LH28F128BF Series (Appendix FUM00701) */ -+ if (is_LH28F640BF(cfi)) -+ cmd_adr = adr; -+ - /* Let's determine this according to the interleave only once */ - write_cmd = (cfi->cfiq->P_ID != P_ID_INTEL_PERFORMANCE) ? CMD(0xe8) : CMD(0xe9); - --- -1.9.1 - |