From: Wang Dongsheng <dongsheng.wang@freescale.com>
Date: Tue, 17 Dec 2013 08:17:01 +0000 (+0800)
Subject: powerpc/85xx: add hardware automatically enter pw20 state
X-Git-Tag: v3.14-rc1~80^2~5^2~27
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1d47ddf7c3725e889763b1fffa70a04e1061940b;p=pandora-kernel.git

powerpc/85xx: add hardware automatically enter pw20 state

Using hardware features make core automatically enter PW20 state.
Set a TB count to hardware, the effective count begins when PW10
is entered. When the effective period has expired, the core will
proceed from PW10 to PW20 if no exit conditions have occurred during
the period.

Signed-off-by: Wang Dongsheng <dongsheng.wang@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
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