diff options
| author | florian <florian@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2010-06-13 09:53:55 +0000 |
|---|---|---|
| committer | florian <florian@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2010-06-13 09:53:55 +0000 |
| commit | cd5addd4e056b9b0a580d1d6773204a7dccc6257 (patch) | |
| tree | f8ce1f360f080560a1477d5bd9b856183a326323 /target/linux/generic-2.6/patches-2.6.34/014-samsung_flash | |
| parent | 3d61140414418416e091ddb6cdd005d03566b1ac (diff) | |
[kernel] fix samsung flash patch after r21408, thanks to Matthias Buecher (#7348)
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@21775 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/generic-2.6/patches-2.6.34/014-samsung_flash')
| -rw-r--r-- | target/linux/generic-2.6/patches-2.6.34/014-samsung_flash | 68 |
1 files changed, 41 insertions, 27 deletions
diff --git a/target/linux/generic-2.6/patches-2.6.34/014-samsung_flash b/target/linux/generic-2.6/patches-2.6.34/014-samsung_flash index e2a456915..7010d367b 100644 --- a/target/linux/generic-2.6/patches-2.6.34/014-samsung_flash +++ b/target/linux/generic-2.6/patches-2.6.34/014-samsung_flash @@ -1,36 +1,50 @@ --- a/drivers/mtd/chips/cfi_cmdset_0002.c +++ b/drivers/mtd/chips/cfi_cmdset_0002.c -@@ -51,6 +51,7 @@ - #define SST49LF040B 0x0050 - #define SST49LF008A 0x005a - #define AT49BV6416 0x00d6 -+#define MANUFACTURER_SAMSUNG 0x00ec +@@ -325,6 +325,8 @@ static struct cfi_fixup fixup_table[] = + static void cfi_fixup_major_minor(struct cfi_private *cfi, + struct cfi_pri_amdstd *extp) + { ++ // manufacturers defined in include/linux/mtd/cfi.h ++ + if (cfi->mfr == CFI_MFR_SAMSUNG && cfi->id == 0x257e && + extp->MajorVersion == '0') + extp->MajorVersion = '1'; +@@ -355,6 +357,9 @@ struct mtd_info *cfi_cmdset_0002(struct + mtd->name = map->name; + mtd->writesize = 1; - static int cfi_amdstd_read (struct mtd_info *, loff_t, size_t, size_t *, u_char *); - static int cfi_amdstd_write_words(struct mtd_info *, loff_t, size_t, size_t *, const u_char *); -@@ -375,12 +376,19 @@ struct mtd_info *cfi_cmdset_0002(struct ++ printk(" CFI mfr 0x%08x\n", cfi->mfr); // TODO: Is there a more general place to print this info? ++ printk(" CFI id 0x%08x\n", cfi->id); ++ + if (cfi->cfi_mode==CFI_MODE_CFI){ + unsigned char bootloc; + /* +@@ -373,16 +378,24 @@ struct mtd_info *cfi_cmdset_0002(struct - if (extp->MajorVersion != '1' || - (extp->MinorVersion < '0' || extp->MinorVersion > '4')) { -- printk(KERN_ERR " Unknown Amd/Fujitsu Extended Query " + cfi_fixup_major_minor(cfi, extp); + +- if (extp->MajorVersion != '1' || +- (extp->MinorVersion < '0' || extp->MinorVersion > '4')) { ++ // 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->MajorVersion > '1' || ++ (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); -- kfree(extp); -- kfree(mtd); -- return NULL; -+ if (cfi->mfr == MANUFACTURER_SAMSUNG && -+ (extp->MajorVersion == '3' && extp->MinorVersion == '3')) { -+ printk(KERN_NOTICE " Newer Samsung flash detected, " -+ "should be compatibile with Amd/Fujitsu.\n"); -+ } -+ else { -+ printk(KERN_ERR " Unknown Amd/Fujitsu Extended Query " -+ "version %c.%c.\n", extp->MajorVersion, -+ extp->MinorVersion); -+ kfree(extp); -+ kfree(mtd); -+ return NULL; -+ } ++ "version %c.%c (0x%02x/0x%02x).\n", ++ extp->MajorVersion, extp->MinorVersion, ++ extp->MajorVersion, extp->MinorVersion); + kfree(extp); + kfree(mtd); + return NULL; } ++ printk(" Amd/Fujitsu Extended Query version %c.%c.\n", ++ extp->MajorVersion, extp->MinorVersion); ++ /* Install our own private info structure */ + cfi->cmdset_priv = extp; + |