From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefan Roese Date: Tue, 26 Oct 2010 10:06:55 +0200 Subject: [U-Boot] ppc4xx:tftp error In-Reply-To: <695788.34867.qm@web120320.mail.ne1.yahoo.com> References: <695788.34867.qm@web120320.mail.ne1.yahoo.com> Message-ID: <201010261006.55842.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 Tim, (please try to quote correctly upon replying, your answers are hard to read) On Tuesday 26 October 2010 09:21:50 Tim Rachman wrote: > > According to your useful guides in our previous Emails, I examined again > > my ddr sdram parameters that i had set in u-boot. I'm interfacing > > HYB25D512160AT?7 to PPC440EP, with 133MHz plb frequency. > > What SDRAM/DDR init code are you using? Is it > arch/powerpc/cpu/ppc4xx/sdram.c? > > > Yes, I am. But I changed some parameters according to HYB25D512160AT?7 > datasheet. Which changes did you make exactly? Are you using the sdram_tr1_set() function to "fine-tune" the controller settings? > A point: Our custom board doesn't have PCI , Is it possible that some > setting in PCI routins of yosemite BSP has effect on their shared PLB BUS? No, I don't think so. But you should create a "real" board port for your custom board and remove such unused features as PCI in this process. > BTW, I focus on SDRAM configuration more, Hopefully problem will be solved. Good luck. 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