linux-kernel - Re: [PATCH 2/3] watchdog: bcm2835: Add poweroff code for the Raspberry Pi

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Message-ID: <557ACF39.2060108@roeck-us.net>
Date:	Fri, 12 Jun 2015 05:23:21 -0700
From:	Guenter Roeck <linux@...ck-us.net>
To:	Noralf Trønnes <noralf@...nnes.org>,
	linux-arm-kernel@...ts.infradead.org
CC:	devicetree@...r.kernel.org, linux-watchdog@...r.kernel.org,
	linux-rpi-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/3] watchdog: bcm2835: Add poweroff code for the Raspberry
 Pi

On 06/09/2015 03:21 AM, Noralf Trønnes wrote:
> This adds a new poweroff function to the watchdog driver for the
> Raspberry Pi. Currently poweroff/halt results in a reboot.
>
> The Raspberry Pi firmware uses the RSTS register to know which
> partiton to boot from. The partiton value is spread into bits
> 0, 2, 4, 6, 8, 10. Partiton 63 is a special partition used by
> the firmware to indicate halt.
>
> The firmware made this change in 19 Aug 2013 and was matched
> by the downstream commit:
> Changes for new NOOBS multi partition booting from gsh
>
> Signed-off-by: Noralf Trønnes <noralf@...nnes.org>

This poweroff handler stuff is getting really messy :-(.

Nothing we can do about that here, so

Acked-by: Guenter Roeck <linux@...ck-us.net>

Guenter

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