From 21add5bc503a46872cfca196a7ee998bd252d6fe Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Mon, 16 Aug 2010 20:14:03 +0000 Subject: [PATCH] sync backfire with trunk for samsung flash patches, thanks maddes (#7348) SVN-Revision: 22680 --- ...014-cfi_fix_amd_extended_table_check.patch | 68 +++++++++++-------- .../089-mtd-samsung-flash.patch | 37 ++++++++++ 2 files changed, 78 insertions(+), 27 deletions(-) create mode 100644 target/linux/generic-2.6/patches-2.6.30/089-mtd-samsung-flash.patch diff --git a/target/linux/generic-2.6/patches-2.6.30/014-cfi_fix_amd_extended_table_check.patch b/target/linux/generic-2.6/patches-2.6.30/014-cfi_fix_amd_extended_table_check.patch index 5c835081b8..1216a3bd3e 100644 --- a/target/linux/generic-2.6/patches-2.6.30/014-cfi_fix_amd_extended_table_check.patch +++ b/target/linux/generic-2.6/patches-2.6.30/014-cfi_fix_amd_extended_table_check.patch @@ -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 +@@ -336,6 +336,8 @@ 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'; +@@ -366,6 +368,9 @@ 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 *); -@@ -386,12 +387,19 @@ 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; + /* +@@ -384,16 +389,24 @@ 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; + diff --git a/target/linux/generic-2.6/patches-2.6.30/089-mtd-samsung-flash.patch b/target/linux/generic-2.6/patches-2.6.30/089-mtd-samsung-flash.patch new file mode 100644 index 0000000000..e46fc05f09 --- /dev/null +++ b/target/linux/generic-2.6/patches-2.6.30/089-mtd-samsung-flash.patch @@ -0,0 +1,37 @@ +--- a/drivers/mtd/chips/cfi_cmdset_0002.c ++++ b/drivers/mtd/chips/cfi_cmdset_0002.c +@@ -338,9 +338,32 @@ static void cfi_fixup_major_minor(struct + { + // manufacturers defined in include/linux/mtd/cfi.h + +- if (cfi->mfr == CFI_MFR_SAMSUNG && cfi->id == 0x257e && +- extp->MajorVersion == '0') ++ if (cfi->mfr == CFI_MFR_SAMSUNG && ++ extp->MajorVersion == '0') { ++ printk(" Fixed Samsung's Amd/Fujitsu Extended Query version from %c.%c", ++ extp->MajorVersion, extp->MinorVersion); ++ + extp->MajorVersion = '1'; ++ extp->MinorVersion = '0'; ++ ++ printk(" to %c.%c.\n", ++ extp->MajorVersion, extp->MinorVersion); ++ } ++ ++ if (cfi->mfr == CFI_MFR_SAMSUNG && ++ extp->MajorVersion == '3' && extp->MinorVersion == '3') { ++ printk(KERN_NOTICE " Newer Samsung flash detected, " ++ "should be compatibile with Amd/Fujitsu.\n"); ++ ++ printk(" Fixed Samsung's Amd/Fujitsu Extended Query version from %c.%c", ++ extp->MajorVersion, extp->MinorVersion); ++ ++ extp->MajorVersion = '1'; // set to 1.3 (last defined version) ++ extp->MinorVersion = '3'; ++ ++ printk(" to %c.%c.\n", ++ extp->MajorVersion, extp->MinorVersion); ++ } + } + + struct mtd_info *cfi_cmdset_0002(struct map_info *map, int primary) -- 2.30.2