T60: enable C4onC3 mode

It is safe to enable this setting on these Boards.

Change-Id: Iaa7377117743d18a95c496c25abf9fb4a1b20ad9
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Reviewed-on: http://review.coreboot.org/330
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>

diff --git a/src/mainboard/lenovo/t60/devicetree.cb b/src/mainboard/lenovo/t60/devicetree.cb
index 4d0476f5b3e939aff81c314542cd7b293f7b140a..dba3fdda02ce63009f99565964fa44ff7bebbacb 100644 (file)
--- a/src/mainboard/lenovo/t60/devicetree.cb
+++ b/src/mainboard/lenovo/t60/devicetree.cb
@@ -68,6 +68,8 @@ chip northbridge/intel/i945
                        register "gpe0_en" = "0x11000006"
                        register "alt_gp_smi_en" = "0x1000"
 
+                       register "c4onc3_enable" = "1"
+
                        device pci 1b.0 on # Audio Cnotroller
                                subsystemid 0x17aa 0x2010
                        end