broadwell: Fixes for _SWS support

- These should be 64bit values so when they try to return -1
it is interpreted properly by the kernel.
- The GPE value needs to be reset at the start so it does not
return stale data from a previous resume.
- If a GPE register is zero the value should only be updated
if it has not yet found a set bit.

BUG=chrome-os-partner:34532
BRANCH=samus,auron
TEST=build and boot on samus, suspend/resume with various
wake sources and ensure the reported _SWS values are correct
in every case.

Original-Change-Id: Ic6897f20ad2f321f3566694c032b75a3db120556
Original-Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/235012
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
(cherry picked from commit be3c79b87b81563f744eb885708a52730debaccb)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>

Change-Id: I801c6e4f90dde0f5f69685f987a9831ee5e99e4a
Reviewed-on: http://review.coreboot.org/9699
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>

0 files changed, 0 insertions, 0 deletions