Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754370AbYA0OdT (ORCPT ); Sun, 27 Jan 2008 09:33:19 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757598AbYA0OdE (ORCPT ); Sun, 27 Jan 2008 09:33:04 -0500 Received: from smtp1.betherenow.co.uk ([87.194.0.68]:52112 "EHLO smtp1.bethere.co.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753755AbYA0OdD (ORCPT ); Sun, 27 Jan 2008 09:33:03 -0500 From: Alistair John Strachan To: Venki Pallipadi Cc: Ingo Molnar , Linux Kernel Mailing List , Alistair John Strachan Subject: [PATCH] Force enable HPET on (some?) ICH9 boards Date: Sun, 27 Jan 2008 14:32:59 +0000 Message-Id: <1201444379-4223-1-git-send-email-alistair@devzero.co.uk> X-Mailer: git-send-email 1.5.3.8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1514 Lines: 42 Some consumer ICH9 boards (such as the Abit IP35 Pro) do not provide a BIOS option for enabling the HPET. The same ICH workaround used for 6,7,8 can be applied to 9. Here I enable the only PCI id that was visible on my system. I have confirmed the HPETs work both from userspace and as a clocksource for the running kernel (2.6.24 here) after applying this patch. Force enabled HPET at base address 0xfed00000 hpet clockevent registered hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0, 0 hpet0: 4 64-bit timers, 14318180 Hz Signed-off-by: Alistair John Strachan --- arch/x86/kernel/quirks.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/arch/x86/kernel/quirks.c b/arch/x86/kernel/quirks.c index fab30e1..150ba29 100644 --- a/arch/x86/kernel/quirks.c +++ b/arch/x86/kernel/quirks.c @@ -162,6 +162,8 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_31, ich_force_enable_hpet); DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_1, ich_force_enable_hpet); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_7, + ich_force_enable_hpet); static struct pci_dev *cached_dev; -- Cheers, Alistair. 137/1 Warrender Park Road, Edinburgh, UK. -- 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/