[U-Boot-Users] make env

[Manuel Sahm]

Hello,

I try to modify the env toll for accessing nand flash.

My problem the structure of the enviroment:
If I understand:
4 byte crc; 1 byte flags, 0x20000-5 byte data.

The Enviroment has a size of 0x20000 bytes. There is a redundant 
enviroment too.(same size)

The CRC is over the data bytes,( not the flags byte included) , right ??

What about the flag byte, which values should I have to write here ?

Thank you very much

Manuel Sahm

Wolfgang Denk schrieb:
> In message <47E8F686.9020903 at feig.de> you wrote:
>   
>> I took the U-Boot version 1.3.2; now I am able to generate the make env 
>> -> fw_printenv utility.
>>
>> I copy the jw_printenv binary and rename it to fw_setenv.
>>     
> ...
>   
>> I want to access a NAND flash. [Pagesize = 0x800; ERASEBLOCKSIZE=0x20000]
>>     
> ...
>   
>> Is this correct ?
>>     
>
> No. the fw_env tools are written with NOR flash support in mind. Don't
> expect this to work unchanged on NAND flash.
>
> Best regards,
>
> Wolfgang Denk
>
>   

-- 
Freundliche Grüße / Best regards 

Manuel Sahm	

Research & Development

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