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| author | Guillaume LECERF <glecerf@gmail.com> | 2010-07-02 14:39:10 +0200 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2010-08-04 11:58:36 +0200 |
| commit | e17f47a14b3418711d9fee5c0a77ef0b672f5eaa (patch) | |
| tree | f937ca4bdbbc48c23a33859a53f6019bc3bc3262 | |
| parent | mtd: m25p80: Make jedec_probe() return proper errno values (diff) | |
| download | linux-e17f47a14b3418711d9fee5c0a77ef0b672f5eaa.tar.xz linux-e17f47a14b3418711d9fee5c0a77ef0b672f5eaa.zip | |
mtd: cfi_cmdset_0002: fix the check for valid primary extension versions
Valid primary extension versions are: 1.0, 1.1, 1.2, 1.3 [1][2].
Fix the check in cfi_cmdset_0002 accordingly.
[1] http://www.amd.com/us-en/assets/content_type/DownloadableAssets/cfi_r20.pdf, page 19
[2] http://www.amd.com/us-en/assets/content_type/DownloadableAssets/cfi_100_20011201.pdf
Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Guillaume LECERF <glecerf@gmail.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
| -rw-r--r-- | drivers/mtd/chips/cfi_cmdset_0002.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/drivers/mtd/chips/cfi_cmdset_0002.c b/drivers/mtd/chips/cfi_cmdset_0002.c index d81079ef91a5..749203f89b55 100644 --- a/drivers/mtd/chips/cfi_cmdset_0002.c +++ b/drivers/mtd/chips/cfi_cmdset_0002.c @@ -417,16 +417,25 @@ struct mtd_info *cfi_cmdset_0002(struct map_info *map, int primary) */ cfi_fixup_major_minor(cfi, extp); + /* + * Valid primary extension versions are: 1.0, 1.1, 1.2, 1.3 + * see: http://www.amd.com/us-en/assets/content_type/DownloadableAssets/cfi_r20.pdf, page 19 and on + * http://www.amd.com/us-en/assets/content_type/DownloadableAssets/cfi_100_20011201.pdf + */ if (extp->MajorVersion != '1' || - (extp->MinorVersion < '0' || extp->MinorVersion > '4')) { + (extp->MajorVersion == '1' && ( extp->MinorVersion < '0' || extp->MinorVersion > '3'))) { printk(KERN_ERR " Unknown Amd/Fujitsu Extended Query " - "version %c.%c.\n", extp->MajorVersion, - extp->MinorVersion); + "version %c.%c (%#02x/%#02x).\n", + extp->MajorVersion, extp->MinorVersion, + extp->MajorVersion, extp->MinorVersion); kfree(extp); kfree(mtd); return NULL; } + printk(KERN_INFO " Amd/Fujitsu Extended Query version %c.%c.\n", + extp->MajorVersion, extp->MinorVersion); + /* Install our own private info structure */ cfi->cmdset_priv = extp; |