Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1764220AbXEUPwq (ORCPT ); Mon, 21 May 2007 11:52:46 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756431AbXEUPwj (ORCPT ); Mon, 21 May 2007 11:52:39 -0400 Received: from mga03.intel.com ([143.182.124.21]:47010 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754956AbXEUPwi convert rfc822-to-8bit (ORCPT ); Mon, 21 May 2007 11:52:38 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.14,561,1170662400"; d="scan'208";a="230398464" X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 8BIT Subject: RE: [PATCH 4/8] Force detect and enable HPET on ICH Date: Mon, 21 May 2007 08:52:34 -0700 Message-ID: <653FFBB4508B9042B5D43DC9E18836F5EA4C09@scsmsx415.amr.corp.intel.com> In-Reply-To: <200705210846.03540.jbarnes@virtuousgeek.org> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [PATCH 4/8] Force detect and enable HPET on ICH Thread-Index: Acebvy1jsQ2vNtHQSIa85EPuy6M/EAAAHQfw From: "Pallipadi, Venkatesh" To: "Jesse Barnes" , "Udo A. Steinberg" Cc: "linux-kernel" , "Andrew Morton" , "Thomas Gleixner" , "Andi Kleen" , "Ingo Molnar" , "Chris Wright" X-OriginalArrivalTime: 21 May 2007 15:52:36.0588 (UTC) FILETIME=[0D8032C0:01C79BC0] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1532 Lines: 46 >-----Original Message----- >From: Jesse Barnes [mailto:jbarnes@virtuousgeek.org] >Sent: Monday, May 21, 2007 8:46 AM >To: Udo A. Steinberg >Cc: Pallipadi, Venkatesh; linux-kernel; Andrew Morton; Thomas >Gleixner; Andi Kleen; Ingo Molnar; Chris Wright >Subject: Re: [PATCH 4/8] Force detect and enable HPET on ICH > >On Sunday, May 20, 2007, Udo A. Steinberg wrote: >> On Mon, 7 May 2007 13:31:28 -0700 Venki Pallipadi (VP) wrote: >> >> VP> Force detect and/or enable HPET on ICH chipsets. This patch just >> handles the VP> detection part and following patches use this >> information. >> VP> >> VP> Signed-off-by: Venkatesh Pallipadi > >> >> Venki, >> >> Is there any reason your patch only enables HPET on ICH6 and beyond? >> HPET can be enabled on earlier ICH by setting bit 17 in >GEN_CNTL on PCI >> dev 31, func 0, offset d0. This seems to work for ICH3/4/5. Are there >> any errata affecting these ICHs? > >I see it documented in the ICH5 datasheet, but that bit is >marked reserved >in the ICH3 and ICH4 datasheets... Which docs are you looking at? > >Jesse The same bits are supported on ICH5 and ICH4M. I am about to send a patch to add PCIIDs of ICH5 and ICH4M to force_detect. These bits were reserved on ICH4 though. Thanks, Venki - 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/