From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Leon Woestenberg" Subject: Re: AHCI support on Intel chipsets (confusion?) Date: Sat, 2 Dec 2006 11:32:01 +0100 Message-ID: References: <45715381.80206@SystemDesignWorks.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from nz-out-0506.google.com ([64.233.162.238]:58165 "EHLO nz-out-0102.google.com") by vger.kernel.org with ESMTP id S1759420AbWLBKcC (ORCPT ); Sat, 2 Dec 2006 05:32:02 -0500 Received: by nz-out-0102.google.com with SMTP id s1so1668189nze for ; Sat, 02 Dec 2006 02:32:02 -0800 (PST) In-Reply-To: <45715381.80206@SystemDesignWorks.com> Content-Disposition: inline Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Wayne Sherman Cc: jgarzik@pobox.com, linux-ide@vger.kernel.org Wayne, On 12/2/06, Wayne Sherman wrote: > Jeff Garzik, > ... > my decision on the kernel source code. It seems to indicate the Intel > ICH7 is AHCI compatible: > We (yesterday) found out that our board (a Supermicro PDSMI+, ICH7 as well) needs the proper BIOS setting in order for it to appear as a AHCI capable controller. Precisely, we found if we enabled "SATA Enhanced Mode", then enabled "AHCI" in the BIOS, the chipset identifies itself as a 0x27c1 device rather than a 0x27c0 device. This is probably exactly the issue you ran into. Try your BIOS settings. Regards, Leon Woestenberg.