From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Wed, 24 Jan 2001 14:25:49 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 24 Jan 2001 14:25:39 -0500 Received: from styx.suse.cz ([195.70.145.226]:5360 "EHLO kerberos.suse.cz") by vger.kernel.org with ESMTP id ; Wed, 24 Jan 2001 14:25:34 -0500 Date: Wed, 24 Jan 2001 20:25:27 +0100 From: Vojtech Pavlik To: Andre Hedrick Cc: Alan Chandler , linux-kernel@vger.kernel.org Subject: Re: [preview] Latest AMD & VIA IDE drivers with UDMA100 support Message-ID: <20010124202527.A2405@suse.cz> In-Reply-To: <20010121104606.A398@suse.cz> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: ; from andre@linux-ide.org on Wed, Jan 24, 2001 at 10:04:50AM -0800 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jan 24, 2001 at 10:04:50AM -0800, Andre Hedrick wrote: > > Well, I know this. But I fear hardcoded timings won't really help here, > > unless everyone out there ran their chipsets at 33 MHz, in which case the > > You have to run the ATA Chipset at 33MHz or it will fail in 99% of all > cases. No. Though I'd advise everyone to stick with 33MHz PCI when they can because it is safe. But even the VIA specs mention 25, 37.5 and 41.5 PCI speeds. > This is not the FSB running at 66/83/100/133. So hardcode is > correct. If you set a MVP3 or MVP4 chipset to 83 MHz FSB, you'll get 41.5 MHz or 27.6 MHz PCI. And there are chips speced for 75 and 83 MHz FSB's - Cyrix 6x86MX etc. No way to get 33 here, if you *don't* want to over/under-clock the CPU. -- 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 Please read the FAQ at http://www.tux.org/lkml/