X60: enable Cx power saving modes

Change-Id: Ib03d9aa77050edde2538b80b32158cb3f0610be6
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Reviewed-on: http://review.coreboot.org/331
Tested-by: build bot (Jenkins)
diff --git a/src/mainboard/lenovo/x60/mainboard.c b/src/mainboard/lenovo/x60/mainboard.c
index e59b2e4..5bc1dca 100644
--- a/src/mainboard/lenovo/x60/mainboard.c
+++ b/src/mainboard/lenovo/x60/mainboard.c
@@ -36,6 +36,19 @@
 #include <northbridge/intel/i945/i945.h>
 #include <pc80/mc146818rtc.h>
 #include "dock.h"
+#include <arch/x86/include/arch/acpigen.h>
+
+static struct cst_entry cst_entries[] = {
+	{ 0x7f, 1, 2, 0, 1, 1, 1, 1000 },
+	{ 0x01, 8, 0, 0, DEFAULT_PMBASE + LV2, 2, 1, 500 },
+	{ 0x01, 8, 0, 0, DEFAULT_PMBASE + LV3, 2, 17, 250 },
+};
+
+int get_cst_entries(struct cst_entry **entries)
+{
+	*entries = cst_entries;
+	return ARRAY_SIZE(cst_entries);
+}
 
 static void mainboard_enable(device_t dev)
 {