[U-Boot] [PATCH] MTD: atmel_nand: support for software BCH ECC

[Bo Shen <voice.shen@gmail.com>]

Hi Andreas,

On 9/4/2013 8:30 PM, Andreas Bie?mann wrote:
>> >Yes, we need libbch.
>> >
>> >If we really want to enable software BCH support. It also need add
>> >following two options in board configuration file.
>> >---8>---
>> >#define CONFIG_NAND_ECC_BCH
>> >#define CONFIG_BCH
>> >---<8---
>> >
>> >So, this patch give us option to enable software BCH.
> got it. So the NAND_ECC_BCH is the adoption for the SW BCH correction in
> mtd layer. I understand that this would be helpful for at91 SoC without
> PMECC HW. But there is no user currently, so I hesitate to apply this.

Frankly, there is no EK boards from Atmel use software BCH now, however, 
a lot of customers use NAND with 224 bytes OOB, can not use software 
ECC, they need use software BCH.
So, I think it is better to apply this patch. If it will break the rule 
of u-boot, then I think we can wait real user in u-boot need this and 
then apply this patch.

> Best regards
>
> Andreas Bie?mann
>

Best Regards,
Bo Shen