From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jerry Van Baren Date: Tue, 21 Jun 2005 07:40:23 -0400 Subject: [U-Boot-Users] Question about MPC8272 HRCW In-Reply-To: <20050621080126.9104.qmail@web31510.mail.mud.yahoo.com> References: <20050621080126.9104.qmail@web31510.mail.mud.yahoo.com> Message-ID: <42B7FCA7.1060608@smiths-aerospace.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de raymond yang wrote: > Still have questions, thanks ahead! [snip] > 3) > I pull-down the RSTCONF, it doesn't work, only with > BDI2000 attached and config-file from BDI2000 (RSTCONF > up of cuz), U-BOOT can start correctly. > I.e. > > > Thanks ahead! > > Best Regards > Raymond Look in your BDI config file and see what the BDI initialization is doing that you are not doing the same. The answer is in there. One classic problem is that the BDI config is initializing SDRAM properly, but your code is not. Another classic problem is that the BDI is initializing BR/OR registers that you've forgotten to do in your start up (or done too late in the start up). Strip all but the bare essentials out of your BDI config file a piece at a time. When it stops working with the BDI, you found either the problem or something essential for the BDI. Your task is to determine which it is ;-). gvb