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[MTD] CFI: remove major/minor version check for command set 0x0002

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The NOR Flash memory K8P2815UQB from Samsung uses the major version
number '0'. Add a quirk to cope with it.

Signed-off-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This commit is contained in:
Wolfgang Grandegger 2009-01-08 19:21:27 +01:00 committed by David Woodhouse
parent a808ad3b0d
commit fefae48bf8
2 changed files with 11 additions and 0 deletions
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10
drivers/mtd/chips/cfi_cmdset_0002.c
View file

@ -322,6 +322,14 @@ 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';
}
struct mtd_info *cfi_cmdset_0002(struct map_info *map, int primary)
{
struct cfi_private *cfi = map->fldrv_priv;
@ -363,6 +371,8 @@ struct mtd_info *cfi_cmdset_0002(struct map_info *map, int primary)
return NULL;
}
cfi_fixup_major_minor(cfi, extp);
if (extp->MajorVersion != '1' ||
(extp->MinorVersion < '0' || extp->MinorVersion > '4')) {
printk(KERN_ERR " Unknown Amd/Fujitsu Extended Query "

1
include/linux/mtd/cfi.h
View file

@ -520,6 +520,7 @@ struct cfi_fixup {
#define CFI_MFR_AMD 0x0001
#define CFI_MFR_ATMEL 0x001F
#define CFI_MFR_SAMSUNG 0x00EC
#define CFI_MFR_ST 0x0020 /* STMicroelectronics */
void cfi_fixup(struct mtd_info *mtd, struct cfi_fixup* fixups);