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-rw-r--r--drivers/mtd/chips/cfi_cmdset_0002.c35
-rw-r--r--drivers/mtd/chips/gen_probe.c1
2 files changed, 36 insertions, 0 deletions
diff --git a/drivers/mtd/chips/cfi_cmdset_0002.c b/drivers/mtd/chips/cfi_cmdset_0002.c
index c27dd1c..b7d821d 100644
--- a/drivers/mtd/chips/cfi_cmdset_0002.c
+++ b/drivers/mtd/chips/cfi_cmdset_0002.c
@@ -258,6 +258,31 @@ static void fixup_use_atmel_lock(struct mtd_info *mtd, void *param)
mtd->flags |= MTD_POWERUP_LOCK;
}
+static void fixup_old_sst_eraseregion(struct mtd_info *mtd)
+{
+ struct map_info *map = mtd->priv;
+ struct cfi_private *cfi = map->fldrv_priv;
+
+ /*
+ * These flashes report two seperate eraseblock regions based on the
+ * sector_erase-size and block_erase-size, although they both operate on the
+ * same memory. This is not allowed according to CFI, so we just pick the
+ * sector_erase-size.
+ */
+ cfi->cfiq->NumEraseRegions = 1;
+}
+
+static void fixup_sst39vf(struct mtd_info *mtd, void *param)
+{
+ struct map_info *map = mtd->priv;
+ struct cfi_private *cfi = map->fldrv_priv;
+
+ fixup_old_sst_eraseregion(mtd);
+
+ cfi->addr_unlock1 = 0x5555;
+ cfi->addr_unlock2 = 0x2AAA;
+}
+
static void fixup_s29gl064n_sectors(struct mtd_info *mtd, void *param)
{
struct map_info *map = mtd->priv;
@@ -280,6 +305,15 @@ static void fixup_s29gl032n_sectors(struct mtd_info *mtd, void *param)
}
}
+/* Used to fix CFI-Tables of chips without Extended Query Tables */
+static struct cfi_fixup cfi_nopri_fixup_table[] = {
+ { CFI_MFR_SST, 0x234A, fixup_sst39vf, NULL, }, // SST39VF1602
+ { CFI_MFR_SST, 0x234B, fixup_sst39vf, NULL, }, // SST39VF1601
+ { CFI_MFR_SST, 0x235A, fixup_sst39vf, NULL, }, // SST39VF3202
+ { CFI_MFR_SST, 0x235B, fixup_sst39vf, NULL, }, // SST39VF3201
+ { 0, 0, NULL, NULL }
+};
+
static struct cfi_fixup cfi_fixup_table[] = {
{ CFI_MFR_ATMEL, CFI_ID_ANY, fixup_convert_atmel_pri, NULL },
#ifdef AMD_BOOTLOC_BUG
@@ -413,6 +447,7 @@ struct mtd_info *cfi_cmdset_0002(struct map_info *map, int primary)
cfi->addr_unlock1 = 0x555;
cfi->addr_unlock2 = 0x2aa;
}
+ cfi_fixup(mtd, cfi_nopri_fixup_table);
if (!cfi->addr_unlock1 || !cfi->addr_unlock2) {
kfree(mtd);
diff --git a/drivers/mtd/chips/gen_probe.c b/drivers/mtd/chips/gen_probe.c
index 1d56887..75a8f9d 100644
--- a/drivers/mtd/chips/gen_probe.c
+++ b/drivers/mtd/chips/gen_probe.c
@@ -248,6 +248,7 @@ static struct mtd_info *check_cmd_set(struct map_info *map, int primary)
#endif
#ifdef CONFIG_MTD_CFI_AMDSTD
case P_ID_AMD_STD:
+ case P_ID_SST_OLD:
return cfi_cmdset_0002(map, primary);
#endif
#ifdef CONFIG_MTD_CFI_STAA