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authorNicolas Reinecke <nr@das-labor.org>2014-10-17 15:09:05 +0200
committerVladimir Serbinenko <phcoder@gmail.com>2014-10-17 17:26:46 +0200
commit85f2e12b4f1d66e723652a91e8765019e71f1c16 (patch)
treefa44a720aacbd1674c745def329ec78ac6f9a89f
parenta9f429922212402d920007220c519a92ab4cbbb2 (diff)
downloadcoreboot-85f2e12b4f1d66e723652a91e8765019e71f1c16.tar.xz
lenovo/t520: Apply ME workaround for S3 resume
Without this patch the laptop powers down after resume. Change-Id: Ic6486fd4c4cc55b1ac5695f9d6d83fc2193b7eba Signed-off-by: Nicolas Reinecke <nr@das-labor.org> Reviewed-on: http://review.coreboot.org/7102 Tested-by: build bot (Jenkins) Reviewed-by: Vladimir Serbinenko <phcoder@gmail.com>
-rw-r--r--src/mainboard/lenovo/t520/acpi/platform.asl6
-rw-r--r--src/mainboard/lenovo/t520/dsdt.asl1
2 files changed, 6 insertions, 1 deletions
diff --git a/src/mainboard/lenovo/t520/acpi/platform.asl b/src/mainboard/lenovo/t520/acpi/platform.asl
index 5466bedc44..f937dc552a 100644
--- a/src/mainboard/lenovo/t520/acpi/platform.asl
+++ b/src/mainboard/lenovo/t520/acpi/platform.asl
@@ -68,6 +68,10 @@ Method(_PTS,1)
Method(_WAK,1)
{
- /* Not implemented. */
+ /* ME may not be up yet. */
+ Store (0, \_TZ.MEB1)
+ Store (0, \_TZ.MEB2)
+
+ /* Not implemented. */
Return(Package(){0,0})
}
diff --git a/src/mainboard/lenovo/t520/dsdt.asl b/src/mainboard/lenovo/t520/dsdt.asl
index e48a5904bf..b6b4b332b5 100644
--- a/src/mainboard/lenovo/t520/dsdt.asl
+++ b/src/mainboard/lenovo/t520/dsdt.asl
@@ -24,6 +24,7 @@
#define BRIGHTNESS_DOWN \_SB.PCI0.GFX0.LCD0.DECB
#define ACPI_VIDEO_DEVICE \_SB.PCI0.GFX0
#define RP04_IS_EXPRESSCARD 1
+#define EC_LENOVO_H8_ME_WORKAROUND 1
#define HAVE_LCD_SCREEN 1
DefinitionBlock(