diff options
| author | Joern Engel <joern@wh.fh-wedel.de> | 2006-05-22 23:18:29 +0200 |
|---|---|---|
| committer | Joern Engel <joern@wh.fh-wedel.de> | 2006-05-22 23:18:29 +0200 |
| commit | 5fa433942ba4e399f7e28764c9db4ade89e91d40 (patch) | |
| tree | 29a2691729645bf27fd2d7d8d61a5c720c6569c1 /drivers/mtd | |
| parent | c8b229de2b05c2b3e8d282ce260935a88ac030ca (diff) | |
| download | talos-obmc-linux-5fa433942ba4e399f7e28764c9db4ade89e91d40.tar.gz talos-obmc-linux-5fa433942ba4e399f7e28764c9db4ade89e91d40.zip | |
[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')
| -rw-r--r-- | drivers/mtd/chips/cfi_cmdset_0001.c | 2 | ||||
| -rw-r--r-- | drivers/mtd/chips/cfi_cmdset_0020.c | 3 | ||||
| -rw-r--r-- | drivers/mtd/nand/nand_base.c | 2 | ||||
| -rw-r--r-- | drivers/mtd/onenand/onenand_base.c | 2 |
4 files changed, 4 insertions, 5 deletions
diff --git a/drivers/mtd/chips/cfi_cmdset_0001.c b/drivers/mtd/chips/cfi_cmdset_0001.c index 35c3689bc5c1..0d435814aaa1 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 d745285fccf8..fae70a5db540 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); diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 055f6608a2ec..cd90a46bf56a 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -2668,7 +2668,7 @@ int nand_scan(struct mtd_info *mtd, int maxchips) /* Fill in remaining MTD driver data */ mtd->type = MTD_NANDFLASH; - mtd->flags = MTD_CAP_NANDFLASH | MTD_ECC; + mtd->flags = MTD_CAP_NANDFLASH; mtd->ecctype = MTD_ECC_SW; mtd->erase = nand_erase; mtd->point = NULL; diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c index 198bb8562d93..4c2c61d54b3a 100644 --- a/drivers/mtd/onenand/onenand_base.c +++ b/drivers/mtd/onenand/onenand_base.c @@ -1943,7 +1943,7 @@ int onenand_scan(struct mtd_info *mtd, int maxchips) /* Fill in remaining MTD driver data */ mtd->type = MTD_NANDFLASH; - mtd->flags = MTD_CAP_NANDFLASH | MTD_ECC; + mtd->flags = MTD_CAP_NANDFLASH; mtd->ecctype = MTD_ECC_SW; mtd->erase = onenand_erase; mtd->point = NULL; |
