From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ben Warren <biggerbadderben@gmail.com>
Date: Tue, 02 Sep 2008 12:42:33 -0700
Subject: [U-Boot] Changing u-boot parameter from linux.
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References: <200809021852.m82Iqi2i032297@mail.corelis.com>
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To: u-boot@lists.denx.de

Hi Brian,

Brian S. Park wrote:
> Hi all,
> What is the recommended way to update u-boot parameter (such as 
> network IP) from linux? In the past, I just updated the parameter 
> sector in the flash by calculating the check sum and wrote the new 
> data to the flash directly from linux application. This works ok if 
> u-boot is not updated. I realized that u-boot has changed the way it 
> writes the parameter to the flash since we used in on our last 
> hardware (version 1.0.0) and am wondering if there is a better way to do this.
>   
Use the fw_printenv/fw_setenv application in the tools/env directory.  
It's a user-space app that can access your environment if you make it 
visible through MTD.

regards,
Ben