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 09CCEDDE0D for ; Wed, 1 Apr 2009 07:04:21 +1100 (EST) Message-Id: <61576250-3589-4D1D-9335-30AA27BD3620@kernel.crashing.org> From: Becky Bruce To: Eduard Fuchs In-Reply-To: <200903311706.55478.edfuchs@uni-kassel.de> Content-Type: text/plain; charset=ISO-8859-1; format=flowed; delsp=yes Mime-Version: 1.0 (Apple Message framework v930.3) Subject: Re: 8641D with linux 2.6.29 did'n show second cpu Date: Tue, 31 Mar 2009 15:04:17 -0500 References: <200903311215.55237.edfuchs@uni-kassel.de> <446E5D82-7F37-42B5-8AD9-F8F368A5520A@kernel.crashing.org> <200903311706.55478.edfuchs@uni-kassel.de> Cc: linuxppc-dev@ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Mar 31, 2009, at 10:06 AM, Eduard Fuchs wrote: > Hi, > > Am Dienstag 31 M=E4rz 2009 15:20:21 schrieb Kumar Gala: >> On Mar 31, 2009, at 5:15 AM, Eduard Fuchs wrote: >>> Hi, >>> >>> I'm testing the evaluation board from freescale (MPC8641DHPCN) with >>> the latest >>> linux kernel (2.6.29) and the second core seems disabled. CONFIG_SPM >>> is >>> enabled but the /proc/cpuinfo shows only one cpu. With original >>> 2.6.27 kernel >>> both cpu cores appears in /proc/cpuinfo. >>> >>> Has anyone an idea how can i enable the second core? >> >> Are you using u-boot? I can't remember if you need a newer u-boot to >> deal with changes in how we bring up the second core. > > Yes. My u-boot version is 2009.03. Are there some additional config =20= > keys for > SMP support in u-boot? Hrm, I am able to reproduce this here - the second processor is =20 reported as stuck and once we're booted, I only see one CPU online. =20 Let me poke around and see if I can figure out what's going on here. Cheers, Becky