[MTD] Unlocking all Intel flash that is locked on power up.

[deliverable/linux.git] / drivers / mtd / chips / cfi_cmdset_0001.c

diff --git a/drivers/mtd/chips/cfi_cmdset_0001.c b/drivers/mtd/chips/cfi_cmdset_0001.c
index 350671ec52263982a2f7532551c48a3272a33711..8189adfefaef5db6c26b81ae4b329d9fcee1ff16 100644 (file)
--- 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);
 }