diff options
| author | Brian Norris <computersforpeace@gmail.com> | 2011-03-18 21:53:42 -0700 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2011-05-25 01:50:14 +0100 |
| commit | a2f812df0b3d467db2ae5e3be38c36ff692ff99f (patch) | |
| tree | 95f3451db3b485ab928b76e536cf526a41ac0995 | |
| parent | a626743f579aa743473fd8b9215ca198bacf2ac4 (diff) | |
mtd: nand: dynamic allocation of flash-based BBT structs
It is nicer to dynamically create our badblock patterns than to
statically define them. The nand_create_default_bbt_descr() function
does a sufficient job of handling various bad block scanning options
for either flash-based or non-flash-based BBTs, so we might as well
use the function for both cases.
This patch simplifies and shortens our code (and removes a TODO that
I left a few months ago).
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
| -rw-r--r-- | drivers/mtd/nand/nand_bbt.c | 27 |
1 files changed, 4 insertions, 23 deletions
diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c index af46428286fe..ccbeaa1e4a8e 100644 --- a/drivers/mtd/nand/nand_bbt.c +++ b/drivers/mtd/nand/nand_bbt.c @@ -1276,20 +1276,6 @@ int nand_update_bbt(struct mtd_info *mtd, loff_t offs) * while scanning a device for factory marked good / bad blocks. */ static uint8_t scan_ff_pattern[] = { 0xff, 0xff }; -static struct nand_bbt_descr smallpage_flashbased = { - .options = NAND_BBT_SCAN2NDPAGE, - .offs = NAND_SMALL_BADBLOCK_POS, - .len = 1, - .pattern = scan_ff_pattern -}; - -static struct nand_bbt_descr largepage_flashbased = { - .options = NAND_BBT_SCAN2NDPAGE, - .offs = NAND_LARGE_BADBLOCK_POS, - .len = 2, - .pattern = scan_ff_pattern -}; - static uint8_t scan_agand_pattern[] = { 0x1C, 0x71, 0xC7, 0x1C, 0x71, 0xC7 }; static struct nand_bbt_descr agand_flashbased = { @@ -1355,10 +1341,6 @@ static struct nand_bbt_descr bbt_mirror_no_bbt_descr = { * this->badblock_pattern. Thus, this->badblock_pattern should be NULL when * passed to this function. * - * TODO: Handle other flags, replace other static structs - * (e.g. handle NAND_BBT_FLASH for flash-based BBT, - * replace smallpage_flashbased) - * */ static int nand_create_default_bbt_descr(struct nand_chip *this) { @@ -1422,15 +1404,14 @@ int nand_default_bbt(struct mtd_info *mtd) this->bbt_md = &bbt_mirror_descr; } } - if (!this->badblock_pattern) { - this->badblock_pattern = (mtd->writesize > 512) ? &largepage_flashbased : &smallpage_flashbased; - } } else { this->bbt_td = NULL; this->bbt_md = NULL; - if (!this->badblock_pattern) - nand_create_default_bbt_descr(this); } + + if (!this->badblock_pattern) + nand_create_default_bbt_descr(this); + return nand_scan_bbt(mtd, this->badblock_pattern); } |