From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefan Roese Date: Mon, 4 May 2009 09:53:31 +0200 Subject: [U-Boot] AMCC 405EX Trap In-Reply-To: References: Message-ID: <200905040953.31272.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 On Thursday 30 April 2009, Jonathan Haws wrote: > I am certain that it is a hardware failure that is causing the machine > check because I can use the exact same binary on another (identical) board > and have it boot just fine. That tells me that all the EBC and SDRAM > settings are correct; >From my experience you can't be sure that SDRAM setting are "currect" at this stage. > and that I am using the right addresses and chip > selects for the data cache. > > Currently I am leaning toward an SDRAM problem because I get about a 20 > second pause when U-Boot tries to relocate to RAM. Yes, I'm pretty sure that you have some SDRAM related problems. Either configuration is non-optimal, or even (perhaps more unlikely) a hardware problem. I suggest that you re-check the DDR2 autocalibration (method A & B). Best regards, Stefan ===================================================================== DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: +49-8142-66989-0 Fax: +49-8142-66989-80 Email: office at denx.de =====================================================================