From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Mon, 30 Jan 2006 12:47:53 +0000 (GMT) Received: from no-dns-yet.demon.co.uk ([80.176.203.50]:33673 "EHLO pangolin.localnet") by ftp.linux-mips.org with ESMTP id S8133503AbWA3Mr3 (ORCPT ); Mon, 30 Jan 2006 12:47:29 +0000 Received: from sprocket.localnet ([192.168.1.27]) by pangolin.localnet with esmtp (Exim 3.35 #1 (Debian)) id 1F3YW2-0007Dn-00; Mon, 30 Jan 2006 12:52:18 +0000 Message-ID: <43DE0BF5.4000506@bitbox.co.uk> Date: Mon, 30 Jan 2006 12:52:05 +0000 From: Peter Horton User-Agent: Thunderbird 1.5 (Windows/20051201) MIME-Version: 1.0 To: Ralf Baechle CC: Peter Horton , linux-mips@linux-mips.org Subject: Re: help ... Galileo PCI bridge References: <20060129094409.GA1495@colonel-panic.org> <20060130121932.GA3816@linux-mips.org> In-Reply-To: <20060130121932.GA3816@linux-mips.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-Path: X-Envelope-To: <"|/home/ecartis/ecartis -s linux-mips"> (uid 0) X-Orcpt: rfc822;linux-mips@linux-mips.org Original-Recipient: rfc822;linux-mips@linux-mips.org X-archive-position: 10229 X-ecartis-version: Ecartis v1.0.0 Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org X-original-sender: phorton@bitbox.co.uk Precedence: bulk X-list: linux-mips Ralf Baechle wrote: > On Sun, Jan 29, 2006 at 09:44:09AM +0000, Peter Horton wrote: > >> I'm currently struggling with a hard hang on the Cobalt hardware which >> uses the Galileo GT64111 PCI bridge. >> >> I've got the rev 11 data sheet for the bridge, I was wondering if anyone >> knows whether there is an errata sheet for this chip, and if so whether >> anyone has a copy ? > > I recall PCI device 31 on bus 0 was magic on all Galileo. Touching it > results in a system hang. Could that be what is hitting you? > Don't think so. Sometines, after a lot of bus master activity from the Tulip NIC we get a Galileo interrupt (probably timer tick) and the first time we touch a Galileo register in the interrupt handler the system hangs hard :-(. It looks like some nasty interaction between the NIC and the bridge. P.