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