linux-kernel - Re: [PATCH RFC] watchdog: add a new driver for VIA chipsets

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Date:	Wed, 23 Nov 2011 22:41:15 +0100
From:	Wim Van Sebroeck <wim@...ana.be>
To:	Harald Welte <HaraldWelte@...tech.com>
Cc:	Dmitry Artamonow <mad_soft@...ox.ru>,
	Marc Vertes <marc.vertes@...fox.com>, w.sang@...gutronix.de,
	linux-watchdog@...r.kernel.org, linux-kernel@...r.kernel.org,
	broonie@...nsource.wolfsonmicro.com
Subject: Re: [PATCH RFC] watchdog: add a new driver for VIA chipsets

Hi Harald,

> Unfortunately it simply doesn't work.  When I originally implemented a
> via_wdt driver some years ago, I couldn't start the watchdog no matter
> how hard I tried.  My inquiries into VIA at that point didn't provide
> any response either.  In fact, I even feared that nobody might ever have
> used that watchdog hardware before ;)
> 
> I can ask again, but I'm not sure if it will be any different at that
> time..

Could you please ask again? It could indeed be that they lock registers.
(It could be something similar to some of the superIO chipsets that can
enable/disable (lock/unlock) access to registers).

The BIOS can at least start the hardware, so the hardware does work :-)

Note: I saw your disclaimer and I thus have no high hopes :-).

Thanks in advance,
Wim.

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