From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 19 Apr 2001 02:43:20 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 19 Apr 2001 02:43:10 -0400 Received: from olsinka.site.cas.cz ([147.231.11.16]:43904 "EHLO twilight.suse.cz") by vger.kernel.org with ESMTP id ; Thu, 19 Apr 2001 02:42:57 -0400 Date: Thu, 19 Apr 2001 08:42:50 +0200 From: Vojtech Pavlik To: Manuel Ignacio Monge Garcia Cc: linux-kernel@vger.kernel.org Subject: Re: ATA 100 & VIA and linux-2.4.3ac8 Message-ID: <20010419084250.A689@suse.cz> In-Reply-To: <01041820505300.01783@localhost.localdomain> <3ADDE820.2050103@texoma.net> <01041822215300.01341@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit User-Agent: Mutt/1.2.5i In-Reply-To: <01041822215300.01341@localhost.localdomain>; from ignaciomonge@navegalia.com on Wed, Apr 18, 2001 at 10:21:53PM -0400 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Apr 18, 2001 at 10:21:53PM -0400, Manuel Ignacio Monge Garcia wrote: > El Mié 18 Abr 2001 15:16, escribiste: > > I don't know about other possible problems with the kernel, but you must > > use an 80 wire IDE cable for UDMA66/100 to work. > > > > > -----------------------Primary IDE-------Secondary IDE------ > > > Cable Type: 40w 40w > > > Strange thing. With previous version of kernel (2.4.1 I think), I > haven't got this problem. May be a bios detection problem? > > Extract from /usr/src/linux/drivers/ide/via82cxxx..c: > > * > * PIO 0-5, MWDMA 0-2, SWDMA 0-2 and UDMA 0-5 > * > * (this includes UDMA33, 66 and 100) modes. UDMA66 and higher modes are > * autoenabled only in case the BIOS has detected a 80 wire cable. To ignore > * the BIOS data and assume the cable is present, use 'ide0=ata66' or > * 'ide1=ata66' on the kernel command line. > * > > I've tried with ide0=ata100, but this options doesn't work. Try ide0=ata66 instead. The option should have been named ide0=80wire, but, well, "ata66" was chosen as the name, because that was it at the time. -- Vojtech Pavlik SuSE Labs