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authorAlistair John Strachan <alistair@devzero.co.uk>2008-01-30 13:33:39 +0100
committerIngo Molnar <mingo@elte.hu>2008-01-30 13:33:39 +0100
commitdff244af014144e4ac87dfc5b6e450dc8832710e (patch)
tree764b1782deb9d9dc3ea69ecf22791493778742a8 /arch/x86
parent23916d49155552767726f116daf32dfb2aa3af23 (diff)
x86: force enable HPET on (some?) ICH9 boards
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 <alistair@devzero.co.uk> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86')
-rw-r--r--arch/x86/kernel/quirks.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/kernel/quirks.c b/arch/x86/kernel/quirks.c
index fab30e13483..150ba29a0d3 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;