From: Stephen Boyd <sboyd@codeaurora.org>
Date: Tue, 9 Jun 2015 18:24:23 +0000 (+0100)
Subject: ARM: 8389/1: Add cpu_resume_arm() for firmwares that resume in ARM state
X-Git-Tag: omap-for-v4.2/fixes-rc1^2~100^2~2^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=32e55a777f83;p=pandora-kernel.git

ARM: 8389/1: Add cpu_resume_arm() for firmwares that resume in ARM state

Some platforms always enter the kernel in the ARM state even if
the kernel is compiled for THUMB2. Add a small wrapper on top of
cpu_resume() that switches into THUMB2 state.

This provides the functionality to fix a problem reported by Kevin
Hilman on next-20150601 where the ifc6410 fails to boot a THUMB2
kernel because the platform's firmware always enters the kernel in
ARM mode from deep idle states.

(rmk: tweaked to work without BSYM->badr changes.)

Reported-by: Kevin Hilman <khilman@linaro.org>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Lina Iyer <lina.iyer@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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