From owner-freebsd-hardware@freebsd.org  Sat May 20 17:41:11 2017
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Date: Sat, 20 May 2017 20:41:08 +0300
From: Lev Serebryakov <lev@serebryakov.spb.ru>
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Message-ID: <1256729175.20170520204108@serebryakov.spb.ru>
To: freebsd-hardware@freebsd.org
Subject: Is ASpeed 2400 BMC Watchdog supported? (Was: ICH WatchDog driver can
 not attach 
 on C226 chipset even if watchdog is enabled in BIOS and works)
In-Reply-To: <789782780.20170520200058@serebryakov.spb.ru>
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Hello Lev,

Saturday, May 20, 2017, 8:00:58 PM, you wrote:

>  I've replaced Supermicro X9SCL motherboard with X10SLH. It is C226 chipset.
>  I have "ichwd" device in my kernel config. Watchdog is enabled (default) by
>  jumper.

>   When watchdog is disabled in BIOS driver complains, that it is disable and
>  fails to start. It is expected.

>   When I enable watchdog in BIOS, driver still complains:

> ichwd0: <Intel Lynx Point watchdog timer> at port 0x1830-0x1837,0x1860-0x187f on isa0
> ichwd0: ICH WDT present but disabled in BIOS or hardware
> device_attach: ichwd0 attach returned 6

>   But after 5 minutes system reboots! So, watchdog works in this case, but
> still driver could not attach to it, which makes watchdog useless.
 Looks like ICH watchdog is really disabled, as I found this answer from
 SuperMicro:

Question: What chip is used on motherboard X10SLL-F for the Watch Dog function?
Answer: The BMC chip is used, which is the ASpeed 2400 chip on the motherboard

 Is it possible to use this watchdog in FreeBSD?

-- 
Best regards,
 Lev                            mailto:lev@serebryakov.spb.ru