summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--drivers/mtd/chips/cfi_cmdset_0001.c18
-rw-r--r--drivers/mtd/chips/cfi_cmdset_0002.c2
-rw-r--r--drivers/mtd/cmdlinepart.c9
-rw-r--r--drivers/mtd/mtdcore.c2
-rw-r--r--include/mtd/mtd-abi.h2
5 files changed, 23 insertions, 10 deletions
diff --git a/drivers/mtd/chips/cfi_cmdset_0001.c b/drivers/mtd/chips/cfi_cmdset_0001.c
index 350671ec5226..8189adfefaef 100644
--- a/drivers/mtd/chips/cfi_cmdset_0001.c
+++ b/drivers/mtd/chips/cfi_cmdset_0001.c
@@ -269,10 +269,16 @@ static void fixup_use_write_buffers(struct mtd_info *mtd, void *param)
/*
* Some chips power-up with all sectors locked by default.
*/
-static void fixup_use_powerup_lock(struct mtd_info *mtd, void *param)
+static void fixup_unlock_powerup_lock(struct mtd_info *mtd, void *param)
{
- printk(KERN_INFO "Using auto-unlock on power-up/resume\n" );
- mtd->flags |= MTD_STUPID_LOCK;
+ struct map_info *map = mtd->priv;
+ struct cfi_private *cfi = map->fldrv_priv;
+ struct cfi_pri_intelext *cfip = cfi->cmdset_priv;
+
+ if (cfip->FeatureSupport&32) {
+ printk(KERN_INFO "Using auto-unlock on power-up/resume\n" );
+ mtd->flags |= MTD_POWERUP_LOCK;
+ }
}
static struct cfi_fixup cfi_fixup_table[] = {
@@ -288,7 +294,7 @@ static struct cfi_fixup cfi_fixup_table[] = {
#endif
{ CFI_MFR_ST, 0x00ba, /* M28W320CT */ fixup_st_m28w320ct, NULL },
{ CFI_MFR_ST, 0x00bb, /* M28W320CB */ fixup_st_m28w320cb, NULL },
- { MANUFACTURER_INTEL, 0x891c, fixup_use_powerup_lock, NULL, },
+ { MANUFACTURER_INTEL, CFI_ID_ANY, fixup_unlock_powerup_lock, NULL, },
{ 0, 0, NULL, NULL }
};
@@ -2349,7 +2355,7 @@ static int cfi_intelext_suspend(struct mtd_info *mtd)
struct flchip *chip;
int ret = 0;
- if ((mtd->flags & MTD_STUPID_LOCK)
+ if ((mtd->flags & MTD_POWERUP_LOCK)
&& extp && (extp->FeatureSupport & (1 << 5)))
cfi_intelext_save_locks(mtd);
@@ -2460,7 +2466,7 @@ static void cfi_intelext_resume(struct mtd_info *mtd)
spin_unlock(chip->mutex);
}
- if ((mtd->flags & MTD_STUPID_LOCK)
+ if ((mtd->flags & MTD_POWERUP_LOCK)
&& extp && (extp->FeatureSupport & (1 << 5)))
cfi_intelext_restore_locks(mtd);
}
diff --git a/drivers/mtd/chips/cfi_cmdset_0002.c b/drivers/mtd/chips/cfi_cmdset_0002.c
index 796bfeadea21..d072e87ce4e2 100644
--- a/drivers/mtd/chips/cfi_cmdset_0002.c
+++ b/drivers/mtd/chips/cfi_cmdset_0002.c
@@ -217,7 +217,7 @@ static void fixup_use_atmel_lock(struct mtd_info *mtd, void *param)
{
mtd->lock = cfi_atmel_lock;
mtd->unlock = cfi_atmel_unlock;
- mtd->flags |= MTD_STUPID_LOCK;
+ mtd->flags |= MTD_POWERUP_LOCK;
}
static struct cfi_fixup cfi_fixup_table[] = {
diff --git a/drivers/mtd/cmdlinepart.c b/drivers/mtd/cmdlinepart.c
index 23fab14f1637..b44292abd9f7 100644
--- a/drivers/mtd/cmdlinepart.c
+++ b/drivers/mtd/cmdlinepart.c
@@ -9,7 +9,7 @@
*
* mtdparts=<mtddef>[;<mtddef]
* <mtddef> := <mtd-id>:<partdef>[,<partdef>]
- * <partdef> := <size>[@offset][<name>][ro]
+ * <partdef> := <size>[@offset][<name>][ro][lk]
* <mtd-id> := unique name used in mapping driver/device (mtd->name)
* <size> := standard linux memsize OR "-" to denote all remaining space
* <name> := '(' NAME ')'
@@ -143,6 +143,13 @@ static struct mtd_partition * newpart(char *s,
s += 2;
}
+ /* if lk is found do NOT unlock the MTD partition*/
+ if (strncmp(s, "lk", 2) == 0)
+ {
+ mask_flags |= MTD_POWERUP_LOCK;
+ s += 2;
+ }
+
/* test if more partitions are following */
if (*s == ',')
{
diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c
index 6c2645e28371..f7e7890e5bc6 100644
--- a/drivers/mtd/mtdcore.c
+++ b/drivers/mtd/mtdcore.c
@@ -61,7 +61,7 @@ int add_mtd_device(struct mtd_info *mtd)
/* Some chips always power up locked. Unlock them now */
if ((mtd->flags & MTD_WRITEABLE)
- && (mtd->flags & MTD_STUPID_LOCK) && mtd->unlock) {
+ && (mtd->flags & MTD_POWERUP_LOCK) && mtd->unlock) {
if (mtd->unlock(mtd, 0, mtd->size))
printk(KERN_WARNING
"%s: unlock failed, "
diff --git a/include/mtd/mtd-abi.h b/include/mtd/mtd-abi.h
index f71dac420394..615072c4da04 100644
--- a/include/mtd/mtd-abi.h
+++ b/include/mtd/mtd-abi.h
@@ -29,7 +29,7 @@ struct mtd_oob_buf {
#define MTD_WRITEABLE 0x400 /* Device is writeable */
#define MTD_BIT_WRITEABLE 0x800 /* Single bits can be flipped */
#define MTD_NO_ERASE 0x1000 /* No erase necessary */
-#define MTD_STUPID_LOCK 0x2000 /* Always locked after reset */
+#define MTD_POWERUP_LOCK 0x2000 /* Always locked after reset */
// Some common devices / combinations of capabilities
#define MTD_CAP_ROM 0