From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefan Roese Date: Sat, 29 Jul 2006 09:11:13 +0200 Subject: [U-Boot-Users] 440SP DDR2 Issue In-Reply-To: <20060728171528.53500.qmail@web33410.mail.mud.yahoo.com> References: <20060728171528.53500.qmail@web33410.mail.mud.yahoo.com> Message-ID: <200607290911.14259.sr@denx.de> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Hi Jeff, On Friday 28 July 2006 19:15, Jeff Stevens wrote: > I have a custom board I am trying to bring up that is > a pretty close architecture to the Luan2 board. I > have an unregistered 2GB DDR2 module in the DIMM slot, > and it works fine using the BDI2000. Did you ever try a smaller module. I would start with something like 256MB. Are you aware that the MMU has to be setup for this big memory module? > However, using > the same DDR2 configuration in U-Boot doesn't work. > It boots up until the point it transfers over to > memory. I have enabled the memory test and it fails > at the first address. I have verified all of the > memory configuration registers, and all seem to be set > correctly. I know there is something in the > configuration I am missing, but I can't seem to figure > it out. Please help. I would greatly appreciate it. First try smaller modules. If they also don't work, you most likely have a problem with your DDR2 setup. Best regards, Stefan