From mboxrd@z Thu Jan 1 00:00:00 1970 From: Grant Grundler Subject: Re: [parisc-linux] C3600 install Date: Sun, 13 Jun 2004 14:19:53 -0600 Message-ID: <20040613201953.GA28264@colo.lackof.org> References: <20040612173138.GC19250@tausq.org> <26521.1087071140@www66.gmx.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: parisc-linux@lists.parisc-linux.org To: Matej Martini Return-Path: In-Reply-To: <26521.1087071140@www66.gmx.net> List-Id: parisc-linux developers list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: parisc-linux-bounces@lists.parisc-linux.org On Sat, Jun 12, 2004 at 10:12:20PM +0200, Matej Martini wrote: > > This is actually a kernel problem; I also see this.... I talked to Grant > > about this a bit, but we haven't reached a good conclusion. If you can > > find a 2.6 based install, it should work..... We need to shut down any devices the PDC has left in a state where it might do DMA *Before* reprogramming the IOMMU. Knowing which devices to shutdown this early and how to access then is non-trivial. > > > > this is the bit that needs fixing, in arch/parisc/kernel/inventory.c... > > with this it should boot. > > > > - pdc_suspend_usb(); > > +/* pdc_suspend_usb(); */ Yeah - this is a "trivial" fix for a difficult problem. An alternative solution would be to disconnect all USB devices. I'm hoping firmware doesn't enable DMA for USB ports if it doesn't find anything. grant _______________________________________________ parisc-linux mailing list parisc-linux@lists.parisc-linux.org http://lists.parisc-linux.org/mailman/listinfo/parisc-linux