From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S266485AbUGUPCw (ORCPT ); Wed, 21 Jul 2004 11:02:52 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S266451AbUGUPCw (ORCPT ); Wed, 21 Jul 2004 11:02:52 -0400 Received: from cantor.suse.de ([195.135.220.2]:62671 "EHLO Cantor.suse.de") by vger.kernel.org with ESMTP id S266423AbUGUPCt (ORCPT ); Wed, 21 Jul 2004 11:02:49 -0400 Date: Wed, 21 Jul 2004 16:56:49 +0200 From: Olaf Hering To: Benjamin Herrenschmidt Cc: Linux Kernel list , Paul Mackeras Subject: Re: reserve legacy io regions on powermac Message-ID: <20040721145649.GA439@suse.de> References: <20040721091249.GA1336@suse.de> <1090421466.2002.24.camel@gaston> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <1090421466.2002.24.camel@gaston> X-DOS: I got your 640K Real Mode Right Here Buddy! X-Homeland-Security: You are not supposed to read this line! You are a terrorist! User-Agent: Mutt und vi sind doch schneller als Notes Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jul 21, Benjamin Herrenschmidt wrote: > On Wed, 2004-07-21 at 05:12, Olaf Hering wrote: > > Anton pointed this out. > > > > ppc32 can boot one single binary on prep, chrp and pmac boards. > > pmac has no legacy io, probing for PC style legacy hardware leads to a > > hard crash. > > Several patches exist to prevent serial, floppy, ps2, parport and other > > drivers from probing these io ports. > > I think the simplest fix for 2.6 is a request_region of the problematic > > areas. > > PCMCIA is still missing. > > I found that partport_pc.c pokes at varios ports, without claiming the > > ports first. Should this be fixed? > > smsc_check(), winbond_check(), winbond_check2() > > Note that this is still all workarounds... Nothing prevents you (and some > people actually do that) to put a PCI card with legacy serial ports on it > inside a pmac.... Sure, but will that use the same io ports? I dont have one to verify it. How does it look on a pccard modem? -- USB is for mice, FireWire is for men! sUse lINUX ag, nÜRNBERG