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authorJoern Engel <joern@wh.fh-wedel.de>2006-05-22 23:18:29 +0200
committerJoern Engel <joern@wh.fh-wedel.de>2006-05-22 23:18:29 +0200
commit5fa433942ba4e399f7e28764c9db4ade89e91d40 (patch)
tree29a2691729645bf27fd2d7d8d61a5c720c6569c1 /drivers/mtd/chips
parentc8b229de2b05c2b3e8d282ce260935a88ac030ca (diff)
[MTD] Introduce MTD_BIT_WRITEABLE
o Add a flag MTD_BIT_WRITEABLE for devices that allow single bits to be cleared. o Replace MTD_PROGRAM_REGIONS with a cleared MTD_BIT_WRITEABLE flag for STMicro and Intel Sibley flashes with internal ECC. Those flashes disallow clearing of single bits, unlike regular NOR flashes, so the new flag models their behaviour better. o Remove MTD_ECC. After the STMicro/Sibley merge, this flag is only set and never checked. Signed-off-by: Joern Engel <joern@wh.fh-wedel.de>
Diffstat (limited to 'drivers/mtd/chips')
-rw-r--r--drivers/mtd/chips/cfi_cmdset_0001.c2
-rw-r--r--drivers/mtd/chips/cfi_cmdset_0020.c3
2 files changed, 2 insertions, 3 deletions
diff --git a/drivers/mtd/chips/cfi_cmdset_0001.c b/drivers/mtd/chips/cfi_cmdset_0001.c
index 35c3689bc5c..0d435814aaa 100644
--- a/drivers/mtd/chips/cfi_cmdset_0001.c
+++ b/drivers/mtd/chips/cfi_cmdset_0001.c
@@ -548,7 +548,7 @@ static int cfi_intelext_partition_fixup(struct mtd_info *mtd,
mtd->writesize = cfi->interleave << prinfo->ProgRegShift;
MTD_PROGREGION_CTRLMODE_VALID(mtd) = cfi->interleave * prinfo->ControlValid;
MTD_PROGREGION_CTRLMODE_INVALID(mtd) = cfi->interleave * prinfo->ControlInvalid;
- mtd->flags |= MTD_PROGRAM_REGIONS;
+ mtd->flags &= ~MTD_BIT_WRITEABLE;
printk(KERN_DEBUG "%s: program region size/ctrl_valid/ctrl_inval = %d/%d/%d\n",
map->name, mtd->writesize,
MTD_PROGREGION_CTRLMODE_VALID(mtd),
diff --git a/drivers/mtd/chips/cfi_cmdset_0020.c b/drivers/mtd/chips/cfi_cmdset_0020.c
index d745285fccf..fae70a5db54 100644
--- a/drivers/mtd/chips/cfi_cmdset_0020.c
+++ b/drivers/mtd/chips/cfi_cmdset_0020.c
@@ -238,8 +238,7 @@ static struct mtd_info *cfi_staa_setup(struct map_info *map)
mtd->unlock = cfi_staa_unlock;
mtd->suspend = cfi_staa_suspend;
mtd->resume = cfi_staa_resume;
- mtd->flags = MTD_CAP_NORFLASH;
- mtd->flags |= MTD_PROGRAM_REGIONS; /* FIXME: Not all STMicro flashes have this */
+ mtd->flags = MTD_CAP_NORFLASH & ~MTD_BIT_WRITEABLE;
mtd->writesize = 8; /* FIXME: Should be 0 for STMicro flashes w/out ECC */
map->fldrv = &cfi_staa_chipdrv;
__module_get(THIS_MODULE);