From 504a3e72208fc6a65924426ff5693982590bccdc Mon Sep 17 00:00:00 2001 From: Darius Augulis Date: Wed, 25 Mar 2009 11:23:51 +0200 Subject: [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 Signed-off-by: David Woodhouse --- drivers/mtd/chips/cfi_cmdset_0002.c | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'drivers/mtd/chips') 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 -- cgit v1.2.2