[U-Boot-Users] Accessing U-Boot ENV variables from Linux

[Ben Warren]

Raghu,

On Wed, 2007-07-25 at 11:50 -0700, Raghu wrote:
> Hello All, 
> 
> I have a serial number and a MAC address stored as the
> U-Boot environment variables. A block of NAND flash
> device of size 128K is assigned for persistance. 
> 
> Is there a way that I can modify or change these
> variables from Linux kernel, OR what would I have to
> do to get this done. 
> 
> Warm Regards,
> Raghu

There's source code for a Linux user-space utility in /tools/env called
'fw_printenv' that will allow you to access the U-boot environment
through MTD.  I use it all the time.

regards,
Ben