linux-kernel - Re: hpet timers gone?

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Message-ID: <4C8E3ABF.90309@xs4all.nl>
Date:	Mon, 13 Sep 2010 16:52:47 +0200
From:	Udo van den Heuvel <udovdh@...all.nl>
To:	Robert Hancock <hancockrwd@...il.com>, linux-kernel@...r.kernel.org
Subject: Re: hpet timers gone?

On 2010-05-31 06:00, Robert Hancock wrote:
> On Sun, May 30, 2010 at 8:53 PM, Udo van den Heuvel <udovdh@...all.nl> wrote:
>> On 2010-05-30 20:51, Robert Hancock wrote:
>>> On 05/30/2010 01:34 AM, Udo van den Heuvel wrote:
>>>> The board has VIA C7 CPU and VIA CX700M2 Unified Digital Media IGP
>>>> chipset which supports HPET.
>>>>
>>>> Can it be that the kernel lacks support for CX700 hpet?
>>>> Or is it a matter of getting the BIOS upgrade to work?
>>>
>>> Your current BIOS doesn't provide an HPET ACPI table, which is the way
>>> it's supposed to indicate support. The kernel only supports
>>> force-enabling HPET on VIA for VT8235 and VT8237.
>>
>> So yes, I should try the BIOS upgrade first?
> 
> If they did add an HPET table entry, it should help, yes..

Is there a workaround?
VIA was not so helpfull: the bios flash tool they have on the site does
not recognise the board as a VIA board.
Also they state the latest BIOS will not add HPET to ACPI table.

So what else can I do to enable HPET?

Kind regards,
Udo
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