From ed19b739c5c76ad241d30f6c6a5ee96fb284f4cf Mon Sep 17 00:00:00 2001
From: Will Deacon <will.deacon@arm.com>
Date: Fri, 11 Feb 2011 15:55:12 +0100
Subject: [PATCH] ARM: 6656/1: hw_breakpoint: avoid UNPREDICTABLE behaviour
 when reading DBGDSCR

Reading baseline CP14 registers, other than DBGDIDR, when the OS Lock
is set leads to UNPREDICTABLE behaviour.

This patch ensures that we clear the OS lock before accessing anything
other than the DBGDIDR, thereby avoiding this behaviour.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Reading git-format-patch failed