[U-Boot-Users] Set bootcmd through BDI2000

Angad angadsc at gmail.com
Thu Jun 28 16:43:37 CEST 2007


Doing a setenv and saveenv write the variables to the eeprom. Erasing th
eflash via the BDI does not reset those variables. Is there a way to erase
the eeprom from the BDI. 

Thanks for the replies.



nicky geerts wrote:
> 
> I usually change the environment variables with setenv, saveenv and
> printenv commands, and dump them to a file using the BDI2000 for
> backup.  If later on I need to restore those environment variables, I
> just write the backup file back to the target flash.
> 
> I don't think the BDI2000 is capable of changing the environment
> variables in flash memory with just one command.
> 
> Nicky Geerts
> 
> 2007/6/28, Leonid <Leonid at a-k-a.net>:
>> I don't exactly understand what you are trying to do. Can you please
>> explain more clearly? If you have BDI2000 connected you can use it to
>> re-image the board I think - why to change bootcmd?
>>
>> Anyway to change bootcmd you probably will need to re-burn entire u-boot
>> environment: it has CRC and rewriting just one variable. It's possible
>> based on u-boot sources write program which take as an input text
>> script, generating u-boot environment, and makes binary image out of it
>> which can be burned to u-boot environment area.
>>
>> Leonid.
>>
>> -----Original Message-----
>> From: u-boot-users-bounces at lists.sourceforge.net
>> [mailto:u-boot-users-bounces at lists.sourceforge.net] On Behalf Of Angad
>> Sent: Wednesday, June 27, 2007 7:23 PM
>> To: u-boot-users at lists.sourceforge.net
>> Subject: [U-Boot-Users] Set bootcmd through BDI2000
>>
>>
>> Hi,
>>
>> Does anyone know if it is possible to set and env variable through the
>> BDI2000 or set the bootcmd via the BDI2000?
>>
>> I am trying to download an image to an ppc board and want to be able to
>> re-image the board by changing the bootcmd via the BDI programmer.
>>
>> Thanks
>> --
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>>
>>
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