From: Shawn Guo <shawn.guo@linaro.org>
Date: Fri, 13 Jul 2012 07:19:34 +0000 (+0100)
Subject: ARM: 7466/1: disable interrupt before spinning endlessly
X-Git-Tag: v3.2.27~25
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2bd8f381a4382eaeef391e0a551230610bece057;p=pandora-kernel.git

ARM: 7466/1: disable interrupt before spinning endlessly

commit 98bd8b96b26db3399a48202318dca4aaa2515355 upstream.

The CPU will endlessly spin at the end of machine_halt and
machine_restart calls.  However, this will lead to a soft lockup
warning after about 20 seconds, if CONFIG_LOCKUP_DETECTOR is enabled,
as system timer is still alive.

Disable interrupt before going to spin endlessly, so that the lockup
warning will never be seen.

Reported-by: Marek Vasut <marex@denx.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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