From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from gate.crashing.org (gate.crashing.org [63.228.1.57]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id B4621DDF48 for ; Tue, 3 Feb 2009 03:12:02 +1100 (EST) Message-Id: From: Kumar Gala To: Martyn Welch In-Reply-To: <498718B6.3030307@gefanuc.com> Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes Mime-Version: 1.0 (Apple Message framework v930.3) Subject: Re: Booting 2.6.29-rc3 on mpc8661d_hpcn failing Date: Mon, 2 Feb 2009 10:11:46 -0600 References: <4982F311.4050507@gefanuc.com> <9B0CCADB-C891-42B2-BE94-0927B5715A00@kernel.crashing.org> <4986BEB9.3030606@gefanuc.com> <498718B6.3030307@gefanuc.com> Cc: linuxppc-dev list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Feb 2, 2009, at 10:00 AM, Martyn Welch wrote: > Kumar Gala wrote: >> On Feb 2, 2009, at 3:36 AM, Martyn Welch wrote: >>> Becky Bruce wrote: >>>> On Jan 30, 2009, at 8:42 AM, Kumar Gala wrote: >>>>> >>>>> On Jan 30, 2009, at 6:31 AM, Martyn Welch wrote: >>>>> >>>>>> Hi Guys, >>>>>> >>>>>> It seems that 2.6.29-rc3 is not booting on the MPC8641 HPCN. I >>>>>> have just updated u-boot to the latest git to see if that >>>>>> improved matters, however I get stuck at the following. Any >>>>>> ideas? >>>>> >>>>> did you update your .dtb as well? >>> >>> Yup, just double checked it. SOC mapped at ffe00000. If I use the >>> wrong DTB I don't get any serial output... >>> >>>> We've changed the memory map for that board in the latest u-boot, >>>> which is why you need a new .dtb. If this still failing, let me >>>> know, and I'll give it a try on my board and see what's up since >>>> this is probably my fault :) >>> >>> It appears the same problem is affecting our sbc610 as well, the >>> location of the SOC hasn't changed on that board. >>> >>> Martyn >> Hm.. maybe try a git-bisect between 2.6.28 and 2.6.29-rc3? > > That's was today's "little" task. I was just in the process of > writing an email :-) > > It got me to the following commit: > > commit 64b3d0e8122b422e879b23d42f9e0e8efbbf9744 > Author: Benjamin Herrenschmidt > > powerpc/mm: Rework usage of _PAGE_COHERENT/NO_CACHE/GUARDED > > I tried reverting it, but as I had kinda thought, that really didn't > help. > > I'm just recompiling to check that I didn't screw-up during the > bisection. Hmm. take a look at this thread. http://ozlabs.org/pipermail/linuxppc-dev/2009-January/067437.html - k