Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
	id <S291620AbSBXWME>; Sun, 24 Feb 2002 17:12:04 -0500
Received: (majordomo@vger.kernel.org) by vger.kernel.org
	id <S291549AbSBXWK0>; Sun, 24 Feb 2002 17:10:26 -0500
Received: from mail.pha.ha-vel.cz ([195.39.72.3]:10757 "HELO
	mail.pha.ha-vel.cz") by vger.kernel.org with SMTP
	id <S291531AbSBXWKE>; Sun, 24 Feb 2002 17:10:04 -0500
Date: Sun, 24 Feb 2002 23:10:02 +0100
From: Vojtech Pavlik <vojtech@suse.cz>
To: Paul Mackerras <paulus@samba.org>
Cc: Vojtech Pavlik <vojtech@suse.cz>, Troy Benjegerdes <hozer@drgw.net>,
        Martin Dalecki <dalecki@evision-ventures.com>,
        Linus Torvalds <torvalds@transmeta.com>,
        Andre Hedrick <andre@linuxdiskcert.org>,
        Rik van Riel <riel@conectiva.com.br>,
        Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: Flash Back -- kernel 2.1.111
Message-ID: <20020224231002.B2199@ucw.cz>
In-Reply-To: <Pine.LNX.4.10.10202232136560.5715-100000@master.linux-ide.org> <Pine.LNX.4.33.0202232152200.26469-100000@home.transmeta.com> <20020224013038.G10251@altus.drgw.net> <3C78DA19.4020401@evision-ventures.com> <20020224142902.C1682@altus.drgw.net> <20020224215422.B1706@ucw.cz> <15481.25250.869765.860828@argo.ozlabs.ibm.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
User-Agent: Mutt/1.2.5i
In-Reply-To: <15481.25250.869765.860828@argo.ozlabs.ibm.com>; from paulus@samba.org on Mon, Feb 25, 2002 at 09:01:06AM +1100
Sender: linux-kernel-owner@vger.kernel.org
X-Mailing-List: linux-kernel@vger.kernel.org

On Mon, Feb 25, 2002 at 09:01:06AM +1100, Paul Mackerras wrote:
> Vojtech Pavlik writes:
> 
> > On Sun, Feb 24, 2002 at 02:29:03PM -0600, Troy Benjegerdes wrote:
> > > I believe there are systems with 33mhz pci and 50mhz pci. Trying to find a
> > > 'common' base clock just seems to be an excercise in confusion. The only
> > > thing that really makes sense is 'how fast is said PCI device clocked'.
> > 
> > Show me one.
> 
> We have some RS/6000 machines that have two separate PCI buses (two
> host bridges) that run at 33MHz and 50MHz respectively.  Fortunately
> we also get a device tree from the firmware that tells us this.

I really wonder why the 50 MHz one doesn't run at 66 MHz, and what
happens if you plug in a 66MHz non-capable card to the 50 MHz bus.

-- 
Vojtech Pavlik
SuSE Labs
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/