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authorDarius Augulis <augulis.darius@gmail.com>2009-03-25 11:23:51 +0200
committerDavid Woodhouse <David.Woodhouse@intel.com>2009-04-06 07:23:26 -0700
commit504a3e72208fc6a65924426ff5693982590bccdc (patch)
tree5d827a04e872a510ebea235a638f9e98c0b6d1ed /drivers/mtd
parentd8877f191e35718ba11a4d46950131e74c40566c (diff)
downloadlinux-504a3e72208fc6a65924426ff5693982590bccdc.tar.bz2
[MTD] [NOR] Fixup for Numonyx M29W128 chips
Prevent NUMONYX M29W128G memories from using write buffer, because it doesn't work properly. Signed-off-by: Darius Augulis <augulis.darius@gmail.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/mtd')
-rw-r--r--drivers/mtd/chips/cfi_cmdset_0002.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/mtd/chips/cfi_cmdset_0002.c b/drivers/mtd/chips/cfi_cmdset_0002.c
index 94bb61e19047..61ea833e0908 100644
--- a/drivers/mtd/chips/cfi_cmdset_0002.c
+++ b/drivers/mtd/chips/cfi_cmdset_0002.c
@@ -282,6 +282,16 @@ static void fixup_s29gl032n_sectors(struct mtd_info *mtd, void *param)
}
}
+static void fixup_M29W128G_write_buffer(struct mtd_info *mtd, void *param)
+{
+ struct map_info *map = mtd->priv;
+ struct cfi_private *cfi = map->fldrv_priv;
+ if (cfi->cfiq->BufWriteTimeoutTyp) {
+ pr_warning("Don't use write buffer on ST flash M29W128G\n");
+ cfi->cfiq->BufWriteTimeoutTyp = 0;
+ }
+}
+
static struct cfi_fixup cfi_fixup_table[] = {
{ CFI_MFR_ATMEL, CFI_ID_ANY, fixup_convert_atmel_pri, NULL },
#ifdef AMD_BOOTLOC_BUG
@@ -298,6 +308,7 @@ static struct cfi_fixup cfi_fixup_table[] = {
{ CFI_MFR_AMD, 0x1301, fixup_s29gl064n_sectors, NULL, },
{ CFI_MFR_AMD, 0x1a00, fixup_s29gl032n_sectors, NULL, },
{ CFI_MFR_AMD, 0x1a01, fixup_s29gl032n_sectors, NULL, },
+ { CFI_MFR_ST, 0x227E, fixup_M29W128G_write_buffer, NULL, },
#if !FORCE_WORD_WRITE
{ CFI_MFR_ANY, CFI_ID_ANY, fixup_use_write_buffers, NULL, },
#endif