From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <3BB27710.68CBE18A@mvista.com> Date: Wed, 26 Sep 2001 20:47:12 -0400 From: Dan Malek MIME-Version: 1.0 To: Matt Porter Cc: "Prasad, Siva" , "'Tom Rini'" , linuxppc-embedded@lists.linuxppc.org Subject: Re: mtmsr... References: <35C119252057D511BB9F0003476BF8A208E5C4@freexc01.smartm.com> <20010926125756.A28204@cx258813-a.chnd1.az.home.com> Content-Type: text/plain; charset=us-ascii Sender: owner-linuxppc-embedded@lists.linuxppc.org List-Id: Matt Porter wrote: > Force's PowerBoot doesn't properly clean up caches before handing > control over to an external program. You are probably having > cache problems that we have run into on some COTS Force boards. > I had to disable, flush, reenable L1 icache on the 680/G4, for > example. So, you are really running on luck then. When you disable the cache, you are just fortunate that the necessary instructions to do the remainder of the work just happen to be in main memory, and that the cache was somehow implicitly invalidated so the ones you need to get to this point aren't stale in the cache. Are you really sure the caches aren't cleaned up properly and this sequence of operations isn't masking some other problem? -- Dan ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/