From mboxrd@z Thu Jan  1 00:00:00 1970
From: DeLaGarza, Robert <robdlg@att.net>
Date: Mon, 28 Jun 2004 00:28:41 -0700
Subject: [U-Boot-Users] What are IBAT and DBAT?
In-Reply-To: <20040628062500.214.qmail@web20703.mail.yahoo.com>
References: <20040628062500.214.qmail@web20703.mail.yahoo.com>
Message-ID: <40DFC8A9.6080506@att.net>
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

Shawn wrote:
> 3. Can IBAT and DBAT be modified dynamically? For example, if I want to
> access 0x70000000 ~ 0x78000000 temporarily, which is not defined in
> configuration header file, can I change the configuration of one of IBAT
> and DBAT pair, e.g. ibat2 and dbat2?
> 

The Broadcom BMW board is based on the MPC8245, and it accesses part of 
that region of memory.  You should use that code as an example.

However, I should note that, in U-Boot 1.0.0, the file 
"board/bmw/early_init.S" does not contain a GPL header.

-Robert DeLaGarza