From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sergei Shtylyov Subject: Re: Fwd: CMD 64x regression from 2.6.21 to 2.6.22 and 2.6.23? Date: Fri, 26 Oct 2007 19:38:19 +0400 Message-ID: <472209EB.4020103@ru.mvista.com> References: <200710142211.03382.marogge@onlinehome.de> <200710200109.58872.marogge@onlinehome.de> <471A36DC.4040509@ru.mvista.com> <200710212255.50123.marogge@onlinehome.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from gateway-1237.mvista.com ([63.81.120.155]:58285 "EHLO imap.sh.mvista.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1752752AbXJZPiM (ORCPT ); Fri, 26 Oct 2007 11:38:12 -0400 In-Reply-To: <200710212255.50123.marogge@onlinehome.de> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Martin Rogge Cc: Bartlomiej Zolnierkiewicz , Mark Lord , linux-ide@vger.kernel.org Hello. Martin Rogge wrote: >> What I don't like is that both PIIX4 and PCI-648 are sharing IRQ15 >>(PIIX4 is in legacy mode, so it uses edge-triggered IRQ15 which is not >>shareable). You don't have drives connected to PIIX4, do you? However, it >>doesn't look like a glitch on IRQ15, it looks like MRDMODE reg. doesn't >>work as documented... > Well, don't worry too much about the PIIX device. I have disabled it in the > BIOS, and I haven't compiled the driver into the kernel. You can't disable IRQ14/15 it uses this way. > MOst likely you're on the right track with the mrdmode register. Yet I want to make sure the manual is lying... > cu Martin MBR, Sergei