[XS] Change in coreboot[main]: mb/asus/p8z77-m: Fix ACPI S3 suspend

[Keith Hui (Code Review)]

Keith Hui has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/78205?usp=email )

Change subject: mb/asus/p8z77-m: Fix ACPI S3 suspend
......................................................................

mb/asus/p8z77-m: Fix ACPI S3 suspend

Set a bit in super I/O configuration like other variants in the
family. Without it S3 suspend totally fails.

(It's safe to set it in devicetree; it needs not be done in early
board init.)

TEST=I have working S3 again.

Change-Id: Ia8059b2a263ab5c459e54685f046eeb913776473
Signed-off-by: Keith Hui 
---
M src/mainboard/asus/p8x7x-series/variants/p8z77-m/overridetree.cb
1 file changed, 1 insertion(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/05/78205/1

diff --git a/src/mainboard/asus/p8x7x-series/variants/p8z77-m/overridetree.cb b/src/mainboard/asus/p8x7x-series/variants/p8z77-m/overridetree.cb
index cad9c5c..476b305 100644
--- a/src/mainboard/asus/p8x7x-series/variants/p8z77-m/overridetree.cb
+++ b/src/mainboard/asus/p8x7x-series/variants/p8z77-m/overridetree.cb
@@ -47,6 +47,7 @@
    					drq 0xe1 = 0x80		# GP07 high
    				end
    				device pnp 2e.a on		# ACPI
+						drq 0xe4 = 0x10 	# Enable 3VSBSW#, needed for S3 suspend
    					drq 0xe7 = 0x11		# HWM reset by LRESET#, 0.5s S3 delay for compatibility
    					drq 0xf2 = 0x5d		# Enable RSTOUT[0-2]# and PME
    				end