Date: Wed, 21 Feb 2007 17:01:18 +0300 From: "Vasim Valejev" <vasim@resume-bank.ru> To: <freebsd-amd64@freebsd.org> Subject: Watchdog driver for winbond 83627H/HF Message-ID: <03bc01c755c0$c241ea50$300a000a@vasimwork>
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Hi ! Many opteron server boards has chip winbond 83627 with integrated watchdog timer in it (i have this chip on my Tyan S2882S and Supermicro H8DCE). Unfortunally, there is no driver for this watchdog in the FreeBSD. So, i've changed linux driver to work as FreeBSD kernel module (tested under 5.5-stable and 7.0-current). Timeout is fixed, 120 seconds. Since it works via watchdog facility in the FreeBSD (man 9 watchdog), it requires 'options SW_WATCHDOG' in kernel's config. Its sources: http://job-svalka.ru/images/temp/w83627wd.tgz To install - 'make; make install'. Load it with 'kldload w83627wd' command and run watchdogd. To disable - 'watchdog -t 0'. I'm not sure if all motherboard suppliers makes required wiring from watchdog output to reset, so it may not work on some motherboards even if there is that chip installed. Vasim V.
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