From: Will Deacon <will.deacon@arm.com>
Date: Fri, 20 Apr 2012 16:21:08 +0000 (+0100)
Subject: ARM: 7397/1: l2x0: only apply workaround for erratum #753970 on PL310
X-Git-Tag: v3.2.17~45
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=721293c3ce382a69b89a743e25aaff6553ad2079;p=pandora-kernel.git

ARM: 7397/1: l2x0: only apply workaround for erratum #753970 on PL310

commit f154fe9b806574437b47f08e924ad10c0e240b23 upstream.

The workaround for PL310 erratum #753970 can lead to deadlock on systems
with an L220 cache controller.

This patch makes the workaround effective only when the cache controller
is identified as a PL310 at probe time.

Signed-off-by: Will Deacon <will.deacon@arm.com>
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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