From mboxrd@z Thu Jan  1 00:00:00 1970
From: Michael Lawnick <nospam_lawnick@gmx.de>
Date: Mon, 23 Feb 2009 09:11:14 +0100
Subject: [U-Boot] saveenv command erases flash u-boot
In-Reply-To: <22156928.post@talk.nabble.com>
References: <22156928.post@talk.nabble.com>
Message-ID: <gntln2$bue$1@ger.gmane.org>
List-Id: <u-boot.lists.denx.de>
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
To: u-boot@lists.denx.de

rudresh said the following:
> i'm using u-boot -1.3.0 in MPC8313 evaluation board, it having a NAND , NOR
> Flash , u-boot stored in NOR flash. when i do the saveenv , reset command
> the u-boot is erased. i'm not able to fix  this issue.  help me to fix this
> issue

Sounds U-Boot and environment share a flash sector.
You'll have to give more info for correct diagnostic:
Flash size, sector size, u-boot start address and size, position of
environment data and if applicable of redundancy data.

-- 
Regards,
Michael