[U-Boot-Users] u-boot fw_setenv does not write
Victor Librado
vlibrado at bioingenieria.es
Tue Jul 3 11:14:40 CEST 2007
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
------------------------------------------------------------------------
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.
>
>
>
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