From: Will Deacon <will.deacon@arm.com>
Date: Tue, 28 Sep 2010 13:02:02 +0000 (+0100)
Subject: ARM: 6416/1: errata: faulty hazard checking in the Store Buffer may lead to data... 
X-Git-Tag: v2.6.36-rc8~7^2~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=475d92fc6e72cd123dc5dbb9e70cdb80b0cfdf2d;p=pandora-kernel.git

ARM: 6416/1: errata: faulty hazard checking in the Store Buffer may lead to data corruption

On the r2p0, r2p1 and r2p2 versions of the Cortex-A9, data corruption
can occur under very rare conditions due to a store buffer optimisation.

This workaround sets a bit in the diagnostic register of the Cortex-A9,
disabling the optimisation and preventing the problem from occurring.

Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---

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