From mboxrd@z Thu Jan  1 00:00:00 1970
From: Nitin Mahajan <nitinm76@yahoo.com>
Date: Wed, 31 Mar 2010 22:27:29 -0700 (PDT)
Subject: [U-Boot] U-boot env variables parsing
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To: u-boot@lists.denx.de

Hi!

I am doing env settings some thing like this,

ROOT1=/dev/mmcblk0p1
ROOT2=/dev/mmcblk0p2
ROOT=${ROOT1}
bootargs1=console=ttyS0,115200n8 mem=256M noinitrd rw rootdelay=1 ${ROOT}

when I say 'setenv bootargs ${bootargs1}', ${ROOT} gets resolved to 'ROOT1', it does not get completely resolved to '/dev/mmcblk0p1'. 

Is there something fundamentally wrong in setting the env variables this way?

What would be the right way to achieve this, as I want ROOT to be ${ROOT1} sometimes and ${ROOT2} some times?

regards

-Nitin




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