diff options
Diffstat (limited to 'packages/linux/linux-2.6.18/mtd-fix-atmel-pri-for-cmdset-0001-and-cmdset-0002.patch')
| -rw-r--r-- | packages/linux/linux-2.6.18/mtd-fix-atmel-pri-for-cmdset-0001-and-cmdset-0002.patch | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/packages/linux/linux-2.6.18/mtd-fix-atmel-pri-for-cmdset-0001-and-cmdset-0002.patch b/packages/linux/linux-2.6.18/mtd-fix-atmel-pri-for-cmdset-0001-and-cmdset-0002.patch new file mode 100644 index 0000000000..4884d8a0b3 --- /dev/null +++ b/packages/linux/linux-2.6.18/mtd-fix-atmel-pri-for-cmdset-0001-and-cmdset-0002.patch @@ -0,0 +1,99 @@ +Index: linux-2.6.18/drivers/mtd/chips/cfi_cmdset_0001.c +=================================================================== +--- linux-2.6.18.orig/drivers/mtd/chips/cfi_cmdset_0001.c 2006-12-13 09:58:34.000000000 +0100 ++++ linux-2.6.18/drivers/mtd/chips/cfi_cmdset_0001.c 2006-12-13 10:01:35.000000000 +0100 +@@ -47,6 +47,7 @@ + #define I82802AC 0x00ac + #define MANUFACTURER_ST 0x0020 + #define M50LPW080 0x002F ++#define AT49BV640D 0x02de + + static int cfi_intelext_read (struct mtd_info *, loff_t, size_t, size_t *, u_char *); + static int cfi_intelext_write_words(struct mtd_info *, loff_t, size_t, size_t *, const u_char *); +@@ -153,6 +154,47 @@ + } + #endif + ++/* Atmel chips don't use the same PRI format as Intel chips */ ++static void fixup_convert_atmel_pri(struct mtd_info *mtd, void *param) ++{ ++ struct map_info *map = mtd->priv; ++ struct cfi_private *cfi = map->fldrv_priv; ++ struct cfi_pri_intelext *extp = cfi->cmdset_priv; ++ struct cfi_pri_atmel atmel_pri; ++ uint32_t features = 0; ++ ++ /* Reverse byteswapping */ ++ extp->FeatureSupport = cpu_to_le32(extp->FeatureSupport); ++ extp->BlkStatusRegMask = cpu_to_le16(extp->BlkStatusRegMask); ++ extp->ProtRegAddr = cpu_to_le16(extp->ProtRegAddr); ++ ++ memcpy(&atmel_pri, extp, sizeof(atmel_pri)); ++ memset((char *)extp + 5, 0, sizeof(*extp) - 5); ++ ++ printk(KERN_ERR "atmel Features: %02x\n", atmel_pri.Features); ++ ++ if (atmel_pri.Features & 0x01) /* chip erase supported */ ++ features |= (1<<0); ++ if (atmel_pri.Features & 0x02) /* erase suspend supported */ ++ features |= (1<<1); ++ if (atmel_pri.Features & 0x04) /* program suspend supported */ ++ features |= (1<<2); ++ if (atmel_pri.Features & 0x08) /* simultaneous operations supported */ ++ features |= (1<<9); ++ if (atmel_pri.Features & 0x20) /* page mode read supported */ ++ features |= (1<<7); ++ if (atmel_pri.Features & 0x40) /* queued erase supported */ ++ features |= (1<<4); ++ if (atmel_pri.Features & 0x80) /* Protection bits supported */ ++ features |= (1<<6); ++ ++ extp->FeatureSupport = features; ++ ++ /* burst write mode not supported */ ++ cfi->cfiq->BufWriteTimeoutTyp = 0; ++ cfi->cfiq->BufWriteTimeoutMax = 0; ++} ++ + #ifdef CMDSET0001_DISABLE_ERASE_SUSPEND_ON_WRITE + /* Some Intel Strata Flash prior to FPO revision C has bugs in this area */ + static void fixup_intel_strataflash(struct mtd_info *mtd, void* param) +@@ -221,6 +263,7 @@ + } + + static struct cfi_fixup cfi_fixup_table[] = { ++ { CFI_MFR_ATMEL, CFI_ID_ANY, fixup_convert_atmel_pri, NULL }, + #ifdef CMDSET0001_DISABLE_ERASE_SUSPEND_ON_WRITE + { CFI_MFR_ANY, CFI_ID_ANY, fixup_intel_strataflash, NULL }, + #endif +Index: linux-2.6.18/drivers/mtd/chips/cfi_cmdset_0002.c +=================================================================== +--- linux-2.6.18.orig/drivers/mtd/chips/cfi_cmdset_0002.c 2006-12-13 10:01:34.000000000 +0100 ++++ linux-2.6.18/drivers/mtd/chips/cfi_cmdset_0002.c 2006-12-15 10:19:22.000000000 +0100 +@@ -184,6 +184,10 @@ + extp->TopBottom = 2; + else + extp->TopBottom = 3; ++ ++ /* burst write mode not supported */ ++ cfi->cfiq->BufWriteTimeoutTyp = 0; ++ cfi->cfiq->BufWriteTimeoutMax = 0; + } + + static void fixup_use_secsi(struct mtd_info *mtd, void *param) +@@ -216,6 +220,7 @@ + } + + static struct cfi_fixup cfi_fixup_table[] = { ++ { CFI_MFR_ATMEL, CFI_ID_ANY, fixup_convert_atmel_pri, NULL }, + #ifdef AMD_BOOTLOC_BUG + { CFI_MFR_AMD, CFI_ID_ANY, fixup_amd_bootblock, NULL }, + #endif +@@ -228,7 +233,6 @@ + #if !FORCE_WORD_WRITE + { CFI_MFR_ANY, CFI_ID_ANY, fixup_use_write_buffers, NULL, }, + #endif +- { CFI_MFR_ATMEL, CFI_ID_ANY, fixup_convert_atmel_pri, NULL }, + { 0, 0, NULL, NULL } + }; + static struct cfi_fixup jedec_fixup_table[] = { |