From mboxrd@z Thu Jan 1 00:00:00 1970 From: Shawn Date: Mon, 28 Jun 2004 13:08:32 -0700 (PDT) Subject: [U-Boot-Users] What are IBAT and DBAT? In-Reply-To: <20040628070143.17635C109F@atlas.denx.de> Message-ID: <20040628200832.43064.qmail@web20727.mail.yahoo.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de > > When trying to port u-boot to a MPC8245 card, I'm not sure what IBAT > and > > DBAT register work for. For example, sl8245.h defines 4 regions of > IBAT: > > If you have to ask such a question this is an indication that you > don't have the qualification to port U-Boot. When dealing with > software on such a low level as the boot loader you need a thorough > understanding of the hardware and it's internal workings. Without > this you are lost. :(. You didn't answer the questions though. I'm learning from practice. I don't recall I touched any IBAT/DBAT configuration when I ported ppcboot to a MPC855 board. So configuring them seems new to me. Thank other guys here for giving me hints and references. -Shawn. __________________________________ Do you Yahoo!? New and Improved Yahoo! Mail - Send 10MB messages! http://promotions.yahoo.com/new_mail