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| author | Guillaume LECERF <glecerf@gmail.com> | 2010-12-17 10:59:41 +0100 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2011-01-06 15:28:51 +0000 |
| commit | e637276370cb11068ab185c342eac5a78e5415b4 (patch) | |
| tree | 9d0c82df4e643bc2ef10b651ac9b79dd18b19a04 /drivers/mtd | |
| parent | eaca491f75af5afa9265a6bdfcbbfff6837634ab (diff) | |
| download | linux-stable-e637276370cb11068ab185c342eac5a78e5415b4.tar.gz linux-stable-e637276370cb11068ab185c342eac5a78e5415b4.tar.bz2 linux-stable-e637276370cb11068ab185c342eac5a78e5415b4.zip | |
mtd: cfi_cmdset_0002: add support for Samsung K8D6x16UxM NOR chips
These chips report CFI v0.0 [1], so extend cfi_fixup_major_minor()
to patch all Samsung chips from 0.0 to 1.0.
Discussed and tested by the OpenWRT people [2].
[1] http://www.samsung.com/global/system/business/semiconductor/product/2007/6/11/NORFlash/64Mbit/K8D6316UTM/ds_K8D6x16UxM_rev16.pdf
[2] https://dev.openwrt.org/ticket/7348
Signed-off-by: Guillaume LECERF <glecerf@gmail.com>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/mtd')
| -rw-r--r-- | drivers/mtd/chips/cfi_cmdset_0002.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/drivers/mtd/chips/cfi_cmdset_0002.c b/drivers/mtd/chips/cfi_cmdset_0002.c index 9d68ab919f31..324fee4024a9 100644 --- a/drivers/mtd/chips/cfi_cmdset_0002.c +++ b/drivers/mtd/chips/cfi_cmdset_0002.c @@ -392,9 +392,19 @@ static struct cfi_fixup fixup_table[] = { static void cfi_fixup_major_minor(struct cfi_private *cfi, struct cfi_pri_amdstd *extp) { - if (cfi->mfr == CFI_MFR_SAMSUNG && cfi->id == 0x257e && - extp->MajorVersion == '0') - extp->MajorVersion = '1'; + if (cfi->mfr == CFI_MFR_SAMSUNG) { + if (extp->MajorVersion == '0' && extp->MinorVersion == '0') { + /* + * Samsung K8P2815UQB and K8D6x16UxM chips + * report major=0 / minor=0. + */ + printk(KERN_NOTICE " Fixing Samsung's Amd/Fujitsu" + " Extended Query version to 1.%c\n", + extp->MinorVersion); + extp->MajorVersion = '1'; + } + } + /* * SST 38VF640x chips report major=0xFF / minor=0xFF. */ |