[U-Boot] [PATCHv2] ARM: at91: atmel_nand: Support flash based BBT

[Josh Wu <josh.wu@atmel.com>]

Hi, David

Thanks for the patch.

On 3/20/2015 5:52 PM, David Dueck wrote:
> Add support for on-flash bad block table. This makes U-Boot handle an existing
> BBT correctly.
>
> Signed-off-by: David Dueck <davidcdueck@googlemail.com>
> Reviewed-by: Boris BREZILLON <boris.brezillon@free-electrons.com>
> CC: Boris BREZILLON <boris.brezillon@free-electrons.com>
> CC: Josh Wu <josh.wu@atmel.com>
> CC: Andreas Bie?mann <andreas.devel@googlemail.com>
> CC: Scott Wood <scottwood@freescale.com>
Acked-by: Josh Wu <josh.wu@atmel.com>

Best Regards,
Josh Wu

> ---
> Changes since v1:
> - improve commit message
> - add Reviewed-by tag
>
>   drivers/mtd/nand/atmel_nand.c | 6 ++++++
>   1 file changed, 6 insertions(+)
>
> diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c
> index b16e3aa..a2016e7 100644
> --- a/drivers/mtd/nand/atmel_nand.c
> +++ b/drivers/mtd/nand/atmel_nand.c
> @@ -1456,6 +1456,9 @@ int board_nand_init(struct nand_chip *nand)
>   	nand->dev_ready = at91_nand_wait_ready;
>   #endif
>   	nand->chip_delay = 20;
> +#ifdef CONFIG_SYS_NAND_USE_FLASH_BBT
> +	nand->bbt_options |= NAND_BBT_USE_FLASH;
> +#endif
>   
>   #ifdef CONFIG_ATMEL_NAND_HWECC
>   #ifdef CONFIG_ATMEL_NAND_HW_PMECC
> @@ -1522,6 +1525,9 @@ int atmel_nand_chip_init(int devnum, ulong base_addr)
>   	nand->dev_ready = at91_nand_ready;
>   #endif
>   	nand->chip_delay = 75;
> +#ifdef CONFIG_SYS_NAND_USE_FLASH_BBT
> +	nand->bbt_options |= NAND_BBT_USE_FLASH;
> +#endif
>   
>   	ret = nand_scan_ident(mtd, CONFIG_SYS_NAND_MAX_CHIPS, NULL);
>   	if (ret)