linux-kernel - Re: HPET force-enable investigations on Via VT8235

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Date:	Mon, 06 Aug 2007 23:39:30 +0200
From:	Rafał Bilski <rafalbilski@...eria.pl>
To:	Andreas Mohr <andi@...as.de>
Cc:	David Edwards <powertop@....lusars.net>, power@...host.org,
	Thomas Gleixner <tglx@...utronix.de>,
	"Udo A. Steinberg" <us15@...inf.tu-dresden.de>,
	linux-kernel@...r.kernel.org
Subject: Re: HPET force-enable investigations on Via VT8235

> Hi,
Hi, 
> So, *please* (I'd *love* to get this working somehow):
> whoever has a VT8235 and is listening here,
> - give a "lspci -nn" (two 'n'!), to figure out details of chipset revision etc.
> - give a "lspci -d 1106:3177 -xxx", to try to figure out whether there happen
>   to be additional magical "enable" bits to map in those HPET I/O areas which
>   some BIOS versions configure and some don't (that's my fragile theory
>   at least)
> - oh, and don't forget to tell whether HPET works or not
VT8235 does *NOT* have a HPET(*). Only part which has HPET is VT8237. It is device 
00:17.0 too, but only 1106:3227 has HPET enable and memory base registers. 
VT8235 one and only feature which doesn't have driver yet seems to be hardware 
watchdog.
> 
> Thanks a lot,
> 
> Andreas Mohr
(*) Datasheet revision 2.03 March 16, 2005
Regards
Rafał


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