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Date:      Wed, 18 Aug 2010 19:10:12 +0300
From:      Andriy Gapon <avg@icyb.net.ua>
To:        freebsd-hackers@freebsd.org
Cc:        Matthew Jacob <mj@feral.com>, "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net>, d@delphij.net, =?ISO-8859-1?Q?Dag-Erling_Sm=F8rgrav?= <des@des.no>
Subject:   Re: Winbond Watchdog [Was Re: Supermicro BIOS's watchdog feature?]
Message-ID:  <4C6C05E4.1000908@icyb.net.ua>
In-Reply-To: <20100807173222.W48418@maildrop.int.zabbadoz.net>
References:  <4C2B07F5.6030801@delphij.net> <4C2B4D35.8060903@feral.com>	<86lj9wmbrz.fsf@ds4.des.no> <4C2BBF3C.4070503@delphij.net>	<86hbkkmad1.fsf@ds4.des.no>	<4C2BD498.3090704@delphij.net> <86d3v7n093.fsf@ds4.des.no>	<4C5D4BFD.9080803@delphij.net> <20100807173222.W48418@maildrop.int.zabbadoz.net>

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on 07/08/2010 20:39 Bjoern A. Zeeb said the following:
> There are not many assertions put in place and it only checks one of
> the two base ports as I had only done it for me so far.  Unfortunately
> there is no ACPI WDRT entry here (either?). devinfo -r was to some use
> though.

ACPI WDRT seems to be a very very rare beast.

> In case it'll help you or someone else I just put it online:
> http://people.freebsd.org/~bz/20100807-02-wd-fintek-f71882fg.diff

Just in case, here is a my very hairy driver for watchdog logic and power led
control in Winbond W83977 family of Super I/O chips.
http://people.freebsd.org/~avg/w83977.diff
There are quite a few possibilities about how this chip could be wired and
programmed (e.g. watchdog output may go to any of three multifunctional pins), but
I really implemented only one configuration (the one that I actually had).

-- 
Andriy Gapon



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