[U-Boot-Users] Set bootcmd through BDI2000

Angad angadsc at gmail.com
Thu Jun 28 16:44:58 CEST 2007


How do you dump the env vriables to a file via the BDI? and is there a way to
re-download them the board?

Thanks



Angad wrote:
> 
> 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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> 
> 

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