From mboxrd@z Thu Jan 1 00:00:00 1970 From: Scott Wood Date: Wed, 25 Apr 2012 13:43:22 -0500 Subject: [U-Boot] [PATCH 2/4][v2] powerpc/85xx:Fix MSR[DE] bit in MSR to support debugger In-Reply-To: References: <1335342343-28501-1-git-send-email-prabhakar@freescale.com> Message-ID: <4F9845CA.2090405@freescale.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de On 04/25/2012 05:57 AM, Joakim Tjernlund wrote: >> >> Debugging of e500 and e500v1 processer requires MSR[DE] bit to be set always. >> Where MSR = Machine State register >> >> Make sure of MSR[DE] bit is set uniformaly across the different execution >> address space i.e. AS0 and AS1. > > Hi > > We are trying to bring up our custom P2010 RDB based board. boot is NOR > based and we cannot get past the rfi below. > lis r6,MSR_IS|MSR_DS at h > ori r6,r6,MSR_IS|MSR_DS at l > lis r7,switch_as at h > ori r7,r7,switch_as at l > > mtspr SPRN_SRR0,r7 > mtspr SPRN_SRR1,r6 > rfi > > switch_as: > > We end up with a TLB exception no matter what we do, even after applying this patch. Did you apply the entire patchset, and define CONFIG_SYS_PPC_E500_DEBUG_TLB? -Scott