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From: =?utf-8?Q?Dag-Erling_Sm=C3=B8rgrav?= <des@des.no>
To: Doug Ambrisko <ambrisko@ambrisko.com>
References: <200707271630.l6RGUIZd088700@ambrisko.com>
Date: Fri, 27 Jul 2007 19:50:21 +0200
In-Reply-To: <200707271630.l6RGUIZd088700@ambrisko.com> (Doug Ambrisko's
	message of "Fri\, 27 Jul 2007 09\:30\:18 -0700 \(PDT\)")
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Cc: Takeharu KATO <takeharu1219@ybb.ne.jp>, freebsd-current@freebsd.org,
	Mike Tancsa <mike@sentex.net>
Subject: Re: ichwd for ICH8
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Doug Ambrisko <ambrisko@ambrisko.com> writes:
> Dag-Erling Sm\xc3\xb8rgrav writes:
> | Doug Ambrisko <ambrisko@ambrisko.com> writes:
> | > Atleast with older ICH chips the TCO reset can be disabled in hardware
> | > with a pull-up or pull-down resistor (I forget which) on one of the
> | > PC speaker lines.
> | Yes, but the driver detects that and refuses to attach.
> Okay, that doesn't mean that you can't try to remove the pull-up
> resistor or use a stronger pull-down resistor on the speaker
> output pins.  Hopefully the MB has a speaker header.  Grounding the
> output of the speaker might work in a pinch.  It needs to be
> done during power on and probably reset.

What for?  If the SPKR line is high during reset, the watchdog timer is
disabled and the NO_REBOOT bit is immutable.  The driver detects that
and refuses to attach.  This is not the case on Mike's hardware.

DES
--=20
Dag-Erling Sm=C3=B8rgrav - des@des.no