RE: [PATCH 1/5] RT kernel: force detect HPET from PCI space

From: Nicolas Mailhot
Date: Fri Mar 30 2007 - 18:38:52 EST


Le samedi 31 mars 2007 Ã 01:09 +0300, Mikko Tiihonen a Ãcrit :
> > Anyone got the same thing for CK804? I had my hopes high, and then I saw
> > the DECLARE_PCI_FIXUP_HEADER values [and the thread title was misleading]
>
> I have an A8N-E motherboard with AthlonX2 and the ACPI definitions are
> missing the HPET (standard feature of Asus motherboards).
>
> I too got interested to get my motherboard working. Luckily I found this
> http://lkml.org/lkml/2006/12/17/69

Oh, is looks so close to my system

00:01.0 ISA bridge: nVidia Corporation CK804 ISA Bridge (rev a3)
Subsystem: Giga-byte Technology GA-K8N Ultra-9 Mainboard
Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0
00: de 10 50 00 0f 00 a0 00 a3 00 01 06 00 00 80 00
10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 58 14 11 0c
30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
40: 58 14 11 0c 00 f0 ff fe fa 3e ff 00 fa 3e ff 00
^^^^^^^^^^^
Usual HPET base address
50: fa 3e ff 00 00 5a 62 02 00 00 00 01 00 00 ff ff
60: 01 10 00 00 01 14 00 00 01 18 00 00 00 00 f9 ff
70: 10 00 ff ff c1 00 00 00 00 00 04 19 18 d2 80 0d
^^
c1 => HPET disabled (according to your reference)

I don't have an HPET toggle in my bios

> from which I generated the following patch:

I'd love to test it, but what kernel baseline did you use?
2.6.21-rc5-mm2?

--
Nicolas Mailhot

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