[U-Boot] [PATCH] at91sam9x5: mmc: save environment as a file in FAT partition.

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

Hi, Bo Shen

Sorry for the late reply. I am taken over by other stuff. check my 
comments below.

On 1/23/2013 5:31 PM, Bo Shen wrote:
> Hi Josh,
>
> On 01/22/2013 04:36 PM, Josh Wu wrote:
>> This patch will save U-Boot environment as a file: uboot.env, in FAT 
>> partition
>> instead of saving it in raw sector of SD card.
>> Since saving environment in raw sector has risk of corrupting the SD 
>> card and
>> only can use very small size.
>> Save as a FAT file has no above limitation.
>>
>> Signed-off-by: Josh Wu<josh.wu@atmel.com>
>> ---
>> this patch is based on v2013.01.
>>
>>   include/configs/at91sam9x5ek.h |   12 +++++++-----
>>   1 file changed, 7 insertions(+), 5 deletions(-)
>
> When I test this on at91sam9g35ek board, execute "saveenv", it will 
> report following information, any information for this?

I also tested some sd card, and I meet this issue you met too.
In such situation,  the command "mmc part" will report a unknow 
partition error.
I suspect the issue is caused by either mmc driver or FAT partition part 
of code.
And I will continue digging this issue. Thanks for report the errors.

Best Regards,
Josh Wu

> ----------------------------
> U-Boot 2013.01-00001-g4ab0497 (Jan 23 2013 - 17:12:28)
>
> CPU: AT91SAM9G35
> Crystal frequency:       12 MHz
> CPU clock        :      400 MHz
> Master clock     :  133.333 MHz
> DRAM:  128 MiB
> WARNING: Caches not enabled
> NAND:  No NAND device found!!!
> atmel_nand: Fail to initialize #0 chip0 MiB
> MMC:   mci: 0
> mci: setting clock 260416 Hz, block size 512
> mci: setting clock 260416 Hz, block size 512
> mci: setting clock 260416 Hz, block size 512
> mci: setting clock 260416 Hz, block size 512
> mci: setting clock 22222222 Hz, block size 512
> ** Partition 1 not valid on device 0 **
> Failed to register mmc0:1
> Using default environment
>
> In:    serial
> Out:   serial
> Err:   serial
> Net:   macb0
> Warning: failed to set MAC address
>
> U-Boot> saveenv
> Saving Environment to FAT...
> mci: setting clock 260416 Hz, block size 512
> mci: setting clock 22222222 Hz, block size 512
> mci: setting clock 260416 Hz, block size 512
> mci: setting clock 260416 Hz, block size 512
> mci: setting clock 22222222 Hz, block size 512
> ** Partition 1 not valid on device 0 **
> Failed to register mmc0:1
> ------------------------------------------------
>
> Best Regards,
> Bo Shen