Re: [PATCH] mtd/gpmi : add BBT support

Huang Shijie
2012-01-30T10:32:35Z

于 2012年01月30日 17:46, Wolfram Sang 写道:
> On Mon, Jan 30, 2012 at 12:36:14PM +0800, Huang Shijie wrote:
>> add the BBT support to the gpmi nand driver.
>> Signed-off-by: Huang Shijie <b32955@freescale.com>
>> ---
>> drivers/mtd/nand/gpmi-nand/gpmi-nand.c | 1 +
>> 1 files changed, 1 insertions(+), 0 deletions(-)
>>
>> diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
>> index 493ec2f..4fbb341 100644
>> --- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
>> +++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
>> @@ -1493,6 +1493,7 @@ static int __devinit gpmi_nfc_init(struct gpmi_nand_data *this)
>> chip->ecc.mode = NAND_ECC_HW;
>> chip->ecc.size = 1;
>> chip->ecc.layout = &gpmi_hw_ecclayout;
>> + chip->bbt_options = NAND_BBT_USE_FLASH | NAND_BBT_NO_OOB;
> You are making this default. Is there a bootloader which supports that
> on MXS?
>
The bootloader usually is burned on /dev/mtd0, while the BBT is placed
at the end
of the NAND chip.

I tested the NAND boot mode too.

What's your concern?

Huang Shijie