From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefan Roese Date: Fri, 11 Feb 2011 09:21:45 +0100 Subject: [U-Boot] ppc4xx PPC460EX DDR2 Autocalibration errata In-Reply-To: <48D3D52125C49B43AE880038E2E5314BB5BE4B@SRV101.gdsys.de> References: <48D3D52125C49B43AE880038E2E5314BB5BE4B@SRV101.gdsys.de> Message-ID: <201102110921.45740.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 Dirk, On Friday 11 February 2011 08:59:47 Eibach, Dirk wrote: > Today I received an erratum fro apm that seems to claim that ddr2 > autocalibration is not working properly on our 460EX boards. Is anyone > already working on this? Not that I am aware of this. Perhaps somebody at AppliedMicro? > Would ddr_scan_option be the way to fix this? Or should > 4xx_ibm_ddr2_autocalib.c generally be fixed for 460EX? Yes, ddr_scan_option() can be used to supply a board specific fix. But a generic fix in 4xx_ibm_ddr2_autocalib.c would be much better of course. Do you experience any possible DDR2 related problems on your 460EX/GT based boards? Cheers, 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