From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefan Roese Date: Wed, 4 Jun 2008 19:21:44 +0200 Subject: [U-Boot-Users] AMCC Bamboo boot from NAND Flash is broken In-Reply-To: <8B3930FEA8618C44B48EB06B5D33A06E12FD3B@satmail.Advantech.ca> References: <8B3930FEA8618C44B48EB06B5D33A06E12FD3B@satmail.Advantech.ca> Message-ID: <200806041921.45093.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 Eugene, On Wednesday 04 June 2008, Eugene O'Brien wrote: > Yesterday I decided to update u-boot from the u-boot-ppc4xx repo. I boot my > board similarly to the Bamboo NAND flash boot. So after I re-flashed U-Boot > ... nothing ... I bricked my board ... thanks! Sorry about that. I hope you were able to get it back to "life". > The good news is that the fix is relatively simple. I took a look at the > code and I see that the SDRAM is no longer initialised anywhere. I renamed > function early_sdram_init() to initdram() and returned the fixed SDRAM > size. I made this trivial change from looking at the code in > nand_spl/board/amcc/canyonlands/ddr2_fixed.c. After that my board booted > correctly. The corresponding change to Bamboo must be done in > nand_spl/board/amcc/bamboo/sdram.c. > > If you're looking for a patch from me, it might take some time so I suggest > you make this change yourself. The commit change that breaks the Bamboo > code is > "ppc4xx/NAND_SPL:?Consolidate?405?and?440?NAND?booting?code?in?start.S" Thanks for the description. I'll send a patch in a few minutes to the list. It would be great if you could ack it, when you think it is ok now. 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 =====================================================================