Signed-off-by: Timo Ketola timo@exertus.fi --- drivers/mtd/nand/mxc_nand.c | 35 +++++++++++++++++++++++++++++++++++ 1 files changed, 35 insertions(+), 0 deletions(-)
diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c index 35e89a0..73813a2 100644 --- a/drivers/mtd/nand/mxc_nand.c +++ b/drivers/mtd/nand/mxc_nand.c @@ -1302,12 +1302,47 @@ 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 = 2, + .len = 4, + .veroffs = 6, + .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 = 2, + .len = 4, + .veroffs = 6, + .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;