[U-Boot] sam9x5 can't find Nand flash

[alex]

Hi:
  Thanks, it can work now. BTW,  one question whether the atmel' patch on v2010.6  is merged int u-boot mainline?



At 2012-11-19 14:10:27,"Bo Shen" <voice.shen at atmel.com> wrote:
>Hi Alex,
>
>On 11/19/2012 13:40, alex wrote:
>> more information. samba script as below:
>>
>> ## Falshing binaries
>> puts "-I- === Initialize the NAND access ==="
>> NANDFLASH::Init
>>
>> puts "-I- === Enable PMECC OS Parameters ==="
>> NANDFLASH::NandHeaderValue HEADER 0xc0c00405
>>
>> puts "-I- === Erase all the NAND flash blocs and test the erasing ==="
>> NANDFLASH::EraseAllNandFlash
>>
>> puts "-I- === Load the bootstrap: nandflash_at91sam9-ek in the first
>> sector ==="
>> NANDFLASH::SendBootFilePmeccCmd $bootstrapFile
>>
>> puts "-I- === Load the u-boot image ==="
>> send_file {NandFlash} "$ubootFile" $ubootAddr 0
>>
>> puts "-I- === Load the u-boot env image ==="
>> send_file {NandFlash} "$ubootenvFile" $ubootenvAddr 0
>>
>> puts "-I- === Load the Kernel image ==="
>> send_file {NandFlash} "$kernelFile" $kernelAddr 0
>>
>> puts "-I- === Enable trimffs ==="
>> NANDFLASH::NandSetTrimffs 1
>>
>> puts "-I- === Load the linux file system ==="
>> send_file {NandFlash} "$rootfsFile" $rootfsAddr 0
>>
>> puts "-I- === DONE. ==="
>>
>
>This is no help. Without any useful information.
>
>>
>>
>> At 2012-11-19 13:37:15,alex <laub923 at 163.com> wrote:
>>
>>     I use u-boot v2010.06 with atmel's patch. I give u-boot 512K size.
>>
>>     U-Boot 2010.06-00002-gb006d3d-dirty (Nov 19 2012 - 09:53:38)
>>
>>     DRAM:  128 MiB
>>     NAND:  No NAND device found!!!
>>     NAND Flash not found !
>>     No NAND device found!!!
>>     0 MiB
>
>You should also provide bootstrap log info.
>
>I think the code is get from www.at91.com/linux4sam.
>
>Anyway, I assume that you use the source code and package get for the 
>upper website. If so, the u-boot environment you change is overlap with 
>u-boot. (If you write the u-boot at offset 0x40000, the size is larger 
>than 256K, that means: u-boot offset + u-boot size > 0x80000). So, when 
>save environment, it will overwrite the u-boot, which cause this issue.
>
>Please check it again. If all thing as I guess, you can change the 
>u-boot offset to 0x20000, or change environment offset to 0xa0000. you 
>can choose which you prefer.
>
>Best Regards,
>Bo Shen
>
>>
>>
>>     At 2012-11-19 11:19:25,"Bo Shen" <voice.shen at atmel.com  <mailto:voice.shen at atmel.com>> wrote:
>>     >Hi Alex,
>>     >
>>     >On 11/19/2012 10:55, alex wrote:
>>     >>   Hi MAINTAINER:
>>     >>    Now I develop our product based on sam9x25 EVK, and redefine our NAND
>>     >> partitions. I set u-boot environment in flash address0x80000.
>>     >> if "saveenv" and "reset", u-boot will print "can't find NAND flash". If
>>     >> I set u-boot environment in the address 0xc0000 as EVK board, it's OK. I
>>     >> cant' know the reason.
>>     >
>>     >Which u-boot version do you use? Please also paste the u-boot boot log here.
>>     >
>>     >Please also check the u-boot file size, will the env overlap with it?
>>     >
>>     >Best Regards,
>>     >Bo Shen
>>     >
>>
>>
>>
>>
>>
>