From: Taras Kondratiuk <taras.kondratiuk@linaro.org>
Date: Fri, 10 Jan 2014 00:27:08 +0000 (+0100)
Subject: ARM: 7938/1: OMAP4/highbank: Flush L2 cache before disabling
X-Git-Tag: v3.13~12^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b25f3e1c358434bf850220e04f28eebfc45eb634;p=pandora-kernel.git

ARM: 7938/1: OMAP4/highbank: Flush L2 cache before disabling

Kexec disables outer cache before jumping to reboot code, but it doesn't
flush it explicitly. Flush is done implicitly inside of l2x0_disable().
But some SoC's override default .disable handler and don't flush cache.
This may lead to a corrupted memory during Kexec reboot on these
platforms.

This patch adds cache flush inside of OMAP4 and Highbank outer_cache.disable()
handlers to make it consistent with default l2x0_disable().

Acked-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Taras Kondratiuk <taras.kondratiuk@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---

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