From: "Udo A. Steinberg" <us15@os.inf.tu-dresden.de>
To: Venki Pallipadi <venkatesh.pallipadi@intel.com>
Cc: linux-kernel <linux-kernel@vger.kernel.org>,
Andrew Morton <akpm@osdl.org>,
Thomas Gleixner <tglx@linutronix.de>, Andi Kleen <ak@suse.de>,
Ingo Molnar <mingo@elte.hu>, Chris Wright <chrisw@sous-sol.org>
Subject: Re: [PATCH 4/8] Force detect and enable HPET on ICH
Date: Mon, 21 May 2007 02:58:22 +0200 [thread overview]
Message-ID: <20070521025822.506c3287@laptop.hypervisor.org> (raw)
In-Reply-To: <20070507203128.GD3926@linux-os.sc.intel.com>
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On Mon, 7 May 2007 13:31:28 -0700 Venki Pallipadi (VP) wrote:
VP> Force detect and/or enable HPET on ICH chipsets. This patch just handles the
VP> detection part and following patches use this information.
VP>
VP> Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Venki,
Is there any reason your patch only enables HPET on ICH6 and beyond? HPET can
be enabled on earlier ICH by setting bit 17 in GEN_CNTL on PCI dev 31, func 0,
offset d0. This seems to work for ICH3/4/5. Are there any errata affecting
these ICHs?
Cheers,
- Udo
--
Dipl.-Inf. Udo Steinberg
Technische Universität Dresden http://os.inf.tu-dresden.de/~us15
Institute for System Architecture Tel: +49 351 463 38401
D-01062 Dresden Fax: +49 351 463 38284
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next prev parent reply other threads:[~2007-05-21 0:58 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-07 20:31 [PATCH 4/8] Force detect and enable HPET on ICH Venki Pallipadi
2007-05-21 0:58 ` Udo A. Steinberg [this message]
2007-05-21 15:46 ` Jesse Barnes
2007-05-21 15:52 ` Pallipadi, Venkatesh
2007-05-21 15:53 ` Udo A. Steinberg
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