From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-out.m-online.net (mail-out.m-online.net [212.18.0.9]) by ozlabs.org (Postfix) with ESMTP id 43BF3DDEDC for ; Wed, 18 Jun 2008 23:45:10 +1000 (EST) Message-ID: <48591167.1050303@grandegger.com> Date: Wed, 18 Jun 2008 15:45:11 +0200 From: Wolfgang Grandegger MIME-Version: 1.0 To: Mike Timmons Subject: Re: Anybody have an mpc5200b mscan linux driver under 2.6.24, ARCH=powerpc or equiv? References: <4858113F.4050203@vecimanetworks.com> <48582CC6.60004@freescale.com> <161B3BAD77161449A144FF054231C3D6022FEAAE@uss-am-xch-01.am.trimblecorp.net> In-Reply-To: <161B3BAD77161449A144FF054231C3D6022FEAAE@uss-am-xch-01.am.trimblecorp.net> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Cc: linuxppc-embedded@ozlabs.org List-Id: Linux on Embedded PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Mike Timmons wrote: > I'm trying to wrestle the peak CAN driver for the old, non-device-tree > ppc into submission but I'm making a mess of it so far. > > I think I'll get it going at some point, but if anybody has or knows of > an mscan driver for the mpc5200 can you alert me? http://svn.berlios.de/svnroot/repos/socketcan/trunk/README The Socket-CAN core is part of the official kernel since 2.6.25. Wolfgang. > > Thanks, > Mike > > -----Original Message----- > From: linuxppc-embedded-bounces+mike_timmons=trimble.com@ozlabs.org > [mailto:linuxppc-embedded-bounces+mike_timmons=trimble.com@ozlabs.org] > On Behalf Of Scott Wood > Sent: Tuesday, June 17, 2008 4:30 PM > To: Mike Winter > Cc: linuxppc-embedded@ozlabs.org > Subject: Re: PCI DMA Problems With 82xx? > > Mike Winter wrote: >> We are developing with an 8248-based platform, and we have a vendor >> telling us that the PCI hardware is unreliable on this CPU family, in >> particular the DMA functionality. A quick search of this list doesn't > >> turn up any horror stories, although the processor does have some PCI >> errata listed. Does anybody have any practical experience using PCI > on >> the 8248 or similar that they can share with me? Thanks. > > Make sure that you park the bus on PCI, and elevate PCI's arbitration > priority. See fixup_pci() in arch/powerpc/boot/cuboot-pq2.c. > > I haven't had a problem with PCI DMA when that is done, though I haven't > > done significant stress testing. > > -Scott > _______________________________________________ > Linuxppc-embedded mailing list > Linuxppc-embedded@ozlabs.org > https://ozlabs.org/mailman/listinfo/linuxppc-embedded > _______________________________________________ > Linuxppc-embedded mailing list > Linuxppc-embedded@ozlabs.org > https://ozlabs.org/mailman/listinfo/linuxppc-embedded > >