diff options
| author | Timo Ketola <timo@exertus.fi> | 2012-04-18 22:55:31 +0000 |
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2012-05-15 08:31:33 +0200 |
| commit | a1028730b5a5f8266fc3a198cd626bf73e157e6c (patch) | |
| tree | 16863ff97110efaa32008b21b4ef6466cd544d90 /drivers/mtd/nand | |
| parent | eba1868be44a272a2c2b38189c86fbad0a9a0804 (diff) | |
imx: nand: Support flash based BBT
Signed-off-by: Timo Ketola <timo@exertus.fi>
Acked-by: Scott Wood <scottwood@freescale.com>
Diffstat (limited to 'drivers/mtd/nand')
| -rw-r--r-- | drivers/mtd/nand/mxc_nand.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c index 35e89a0f4..936186f75 100644 --- a/drivers/mtd/nand/mxc_nand.c +++ b/drivers/mtd/nand/mxc_nand.c @@ -1302,12 +1302,45 @@ static void mxc_setup_config1(void) #define mxc_setup_config1() #endif +#ifdef CONFIG_SYS_NAND_USE_FLASH_BBT + +static u8 bbt_pattern[] = {'B', 'b', 't', '0' }; +static u8 mirror_pattern[] = {'1', 't', 'b', 'B' }; + +static struct nand_bbt_descr bbt_main_descr = { + .options = NAND_BBT_LASTBLOCK | NAND_BBT_CREATE | NAND_BBT_WRITE | + NAND_BBT_2BIT | NAND_BBT_VERSION | NAND_BBT_PERCHIP, + .offs = 0, + .len = 4, + .veroffs = 4, + .maxblocks = 4, + .pattern = bbt_pattern, +}; + +static struct nand_bbt_descr bbt_mirror_descr = { + .options = NAND_BBT_LASTBLOCK | NAND_BBT_CREATE | NAND_BBT_WRITE | + NAND_BBT_2BIT | NAND_BBT_VERSION | NAND_BBT_PERCHIP, + .offs = 0, + .len = 4, + .veroffs = 4, + .maxblocks = 4, + .pattern = mirror_pattern, +}; + +#endif + int board_nand_init(struct nand_chip *this) { struct mtd_info *mtd; uint16_t tmp; int err = 0; +#ifdef CONFIG_SYS_NAND_USE_FLASH_BBT + this->options |= NAND_USE_FLASH_BBT; + this->bbt_td = &bbt_main_descr; + this->bbt_md = &bbt_mirror_descr; +#endif + /* structures must be linked */ mtd = &host->mtd; mtd->priv = this; |