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authorGuillaume LECERF <glecerf@gmail.com>2010-12-17 10:59:41 +0100
committerDavid Woodhouse <David.Woodhouse@intel.com>2011-01-06 15:28:51 +0000
commite637276370cb11068ab185c342eac5a78e5415b4 (patch)
tree9d0c82df4e643bc2ef10b651ac9b79dd18b19a04
parenteaca491f75af5afa9265a6bdfcbbfff6837634ab (diff)
downloadop-kernel-dev-e637276370cb11068ab185c342eac5a78e5415b4.zip
op-kernel-dev-e637276370cb11068ab185c342eac5a78e5415b4.tar.gz
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>
-rw-r--r--drivers/mtd/chips/cfi_cmdset_0002.c16
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 9d68ab9..324fee4 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.
*/
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