tree f515afa2d71b7780f69c239dcae56f15595c1740
parent 159661da94c2b0d47fb78a7f1364ad4d7012e9f9
author Bin Meng <bmeng.cn@gmail.com> 1492784682 -0700
committer Bin Meng <bmeng.cn@gmail.com> 1495012306 +0800

x86: apci: Change PM1_CNT register access to RMW

In enter_acpi_mode() PM1_CNT register is changed to PM1_CNT_SCI_EN
directly without preserving its previous value. Update to change
the register access to read-modify-write (RMW).

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Stefan Roese <sr@denx.de>