[U-Boot-Users] u-boot fw_setenv does not write

[Victor Librado]

 Yes, cat /dev/mtd1 shows the content and the environment variables. 
Also linux mtd-utils, flash_eraseall, nandwrite works ... It seems a 
problem writing nand in fw_setenv

         # ./fw_setenv bootdelay 4
        Warning: Bad CRC, using default environment
        Unlocking flash...
        Done
        Erasing old environment...
        Done
        Writing environment to /dev/mtd1...
        CRC write error on /dev/mtd1: Invalid argument
        Error: can't write fw_env to flash

It erases but cannot write. Indeed rebooting starts with the default 
environment.

        Kernel printk:
        nand_write: Attempt to write not page aligned data


What may happens? Any with fw_setenv working compiled for arm 
architecture and uclibc?

 

Victor Librado Sancho
Departamento I+D
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Jeff Angielski escribió:
> On Mon, 2007-07-02 at 17:36 +0200, Victor Librado wrote:
>   
>> u-boot environment tool fw_setenv does not work when writing the 
>> environment to flash. Working with at91sam9260ek running kernel 2.6.20.
>>     
> <snip>
>   
>> Offset and environmet size as defined in myboard.h for u-boot 
>> compilation. I suppose flash sector size is the erase (block size).
>>
>> Any help please?
>>     
>
> There is nothing special about the u-boot env. The parameters are in
> human readable format if you dump the contents [or used to be last time
> I looked].  And the fw_xxx tools just access the flash through the
> normal MTD layer.  
>
> With this in mind, can you access that block using the standard
> utilities?  cat?  dd? einfo?  erase?  etc.  If not, your MTD
> configuration for your board is broken.
>
>
>