From: Stephen Warren <swarren-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
To: Stephen Warren <swarren-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
Cc: devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org,
linux-rpi-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
Subject: Re: [PATCH] ARM: bcm2835: implement machine restart hook
Date: Thu, 25 Oct 2012 20:51:17 -0600 [thread overview]
Message-ID: <5089FAA5.7050908@wwwdotorg.org> (raw)
In-Reply-To: <1348805280-7647-1-git-send-email-swarren-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
On 09/27/2012 10:08 PM, Stephen Warren wrote:
> Implement the machine restart hook using the SoC's watchdog timer module.
> To support this, define a DT binding for the watchdog module, and add it
> to the device tree.
>
> The downstream rpi-split branch contains a full watchdog timer driver
> implementation, which also implements the restart hook. However, the
> restart function is largely separate from the watchdog driver, so for
> simplicity, the restart hook is implemented here directly in the main
> machine source file.
>
> Overall structure (separate setup/restart) functions derived from the
> picoxcell ARM support.
>
> Watchdog register IO sequence taken from code by Simon Arlott. Note that
> the watchdog module is not documented in BCM2835-ARM-Peripherals.pdf.
Applied to rpi's for-3.8/soc branch.
prev parent reply other threads:[~2012-10-26 2:51 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-28 4:08 [PATCH] ARM: bcm2835: implement machine restart hook Stephen Warren
[not found] ` <1348805280-7647-1-git-send-email-swarren-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2012-09-28 10:15 ` Thomas Petazzoni
2012-09-28 14:56 ` Stephen Warren
2012-09-28 10:31 ` Jean-Christophe PLAGNIOL-VILLARD
[not found] ` <20120928103140.GZ17667-RQcB7r2h9QmfDR2tN2SG5Ni2O/JbrIOy@public.gmane.org>
2012-09-28 14:57 ` Stephen Warren
2012-10-26 2:51 ` Stephen Warren [this message]
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