[U-Boot] [PATCH v2] arm : Atmel : add at91sam9x5ek board support

[Nicolas Ferre]

On 07/02/2012 11:47 AM, Andreas Bießmann :
> On 02.07.2012 10:36, Bo Shen wrote:

[..]

>>>> +/* bootstrap + u-boot + env + linux in nandflash */
>>>> +#define CONFIG_ENV_IS_IN_NAND
>>>> +#define CONFIG_ENV_OFFSET        0xc0000
>>>> +#define CONFIG_ENV_OFFSET_REDUND    0x100000
>>>> +#define CONFIG_ENV_SIZE        0x20000        /* 1 sector = 128 kB */
>>>> +#define CONFIG_BOOTCOMMAND    "nand read.jffs2 " \
>>>> +                "0x22000000 0x200000 0x300000; " \
>>>> +                "bootm 0x22000000"
>>>
>>> Well, you read from jffs but work with ubifs later on? Is that ok?
>>> BTW: I do not know 'nand read.jffs2', does this subcommand exist really?
>>
>> Using the read with subfix .jffs2 it to skip the bad block. This
>> partition is for Linux kernel.
>> I will remove the .jffs2 to avoid confusing.
> 
> Well, it is ok with me to use read.jffs2 (if it works). I just do not
> know about that subcommand and I can only find some references about
> that in two other boards. I guess these boards are just forgotten while
> removing the 'nand read.jffs2' command. Please check, if that command
> works, if yes let it as is, if not rewrite.

I am in favor of using read.jffs2 because it is able to skip bad blocks.
As the programming tool is also skipping bad blocks the same way, we
have a configuration that is perfectly working even in case of bad block
in the middle of the kernel image.

So please, keep using read.jffs2 (or equivalent)!

Best regards,
-- 
Nicolas Ferre