From: Mark Brown <broonie@opensource.wolfsonmicro.com>
To: Marc Vertes <marc.vertes@sigfox.com>
Cc: mad_soft@inbox.ru, wim@iguana.be, w.sang@pengutronix.de,
linux-watchdog@vger.kernel.org, linux-kernel@vger.kernel.org,
HaraldWelte@viatech.com
Subject: Re: [PATCH RFC] watchdog: add a new driver for VIA chipsets
Date: Wed, 23 Nov 2011 14:37:37 +0000 [thread overview]
Message-ID: <20111123143737.GD20272@opensource.wolfsonmicro.com> (raw)
In-Reply-To: <4eccff3f.MbLR7E9v8jus19P8%marc.vertes@sigfox.com>
On Wed, Nov 23, 2011 at 03:12:15PM +0100, Marc Vertes wrote:
> Of course I read the datasheet of the VX855 southbridge prior to
> write this driver. And the VX800 one, the CX700 one. Unfortunately,
> the instructions to start, stop, get and set counters simply
> do not work. The doc is false and/or incomplete. Harald
> already implemented a full version of this driver back in 2009
> (http://git.gnumonks.org/cgi-bin/gitweb.cgi?p=linux-2.6-via.git;a=shortlog; h=refs/heads/via-wdt),
> but not working. Questions to VIA remain unanswered.
The documentation may actually be accurate - for security/robustness
reasons it's not uncommon for watchdog hardware to have restrictions on
when it can be programmed. It may be that there's something like that
going on which locks out reprogramming of the block by the time the OS
is up and running, or there may be additional steps required to go into
a secure mode that VIA don't want to disclose.
next prev parent reply other threads:[~2011-11-23 14:37 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-22 11:17 [PATCH RFC] watchdog: add a new driver for VIA chipsets Marc Vertes
2011-11-22 11:22 ` Wolfram Sang
2011-11-22 12:56 ` Rahul Bedarkar
2011-11-22 12:56 ` Rahul Bedarkar
2011-11-22 17:05 ` Marc Vertes
2011-11-22 17:30 ` Wolfram Sang
2011-11-22 18:09 ` Marc Vertes
2011-11-22 18:55 ` Marc Vertes
2011-11-23 12:10 ` Dmitry Artamonow
2011-11-23 14:12 ` Marc Vertes
2011-11-23 14:37 ` Mark Brown [this message]
2011-11-23 19:25 ` Dmitry Artamonow
2011-11-23 21:43 ` Wolfram Sang
2011-11-23 18:22 ` Harald Welte
2011-11-23 21:41 ` Wim Van Sebroeck
2011-11-24 19:22 ` Marc Vertes
2011-11-24 19:34 ` Wim Van Sebroeck
2011-11-25 20:02 ` Marc Vertes
2011-11-22 17:32 ` Mark Brown
2011-11-22 18:40 ` Wolfram Sang
2011-11-23 9:59 ` Marc Vertes
2011-11-23 10:49 ` Wolfram Sang
2011-11-23 11:43 ` Marc Vertes
2011-11-23 12:13 ` Wim Van Sebroeck
2011-11-23 12:20 ` Mark Brown
2011-11-23 12:40 ` Wim Van Sebroeck
2011-11-23 14:46 ` Marc Vertes
2011-11-23 21:43 ` Wim Van Sebroeck
2011-11-23 21:52 ` Wolfram Sang
2011-11-24 8:29 ` Wim Van Sebroeck
2011-11-23 21:46 ` Wim Van Sebroeck
2011-11-24 10:57 ` Marc Vertes
2011-11-24 13:42 ` Wim Van Sebroeck
2011-11-24 14:42 ` Marc Vertes
2011-11-24 15:48 ` Wim Van Sebroeck
2011-11-24 16:47 ` Marc Vertes
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