New patch to review for coreboot: 174746b lenovo/t530: Apply ME workaround for S3 resume

[Edward O'Callaghan]

Edward O'Callaghan ([e-mail]) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/6876

-gerrit

commit 174746b445baef5c347c7f32c06ac74b386e126b
Author: Edward O'Callaghan 
Date:   Fri Sep 12 03:53:43 2014 +1000

lenovo/t530: Apply ME workaround for S3 resume

Upon S3 resume, the machine powers off due to the ME not being awake yet.

Change-Id: I0255dd0fa6b4cb3b539e11a69a618c770c44f4b0
    Signed-off-by: Edward O'Callaghan 
---
 src/mainboard/lenovo/t530/acpi/platform.asl | 4 ++++
 src/mainboard/lenovo/t530/dsdt.asl          | 1 +
 2 files changed, 5 insertions(+)

diff --git a/src/mainboard/lenovo/t530/acpi/platform.asl b/src/mainboard/lenovo/t530/acpi/platform.asl
index 5466bed..72b9dbf 100644
--- a/src/mainboard/lenovo/t530/acpi/platform.asl
+++ b/src/mainboard/lenovo/t530/acpi/platform.asl
@@ -68,6 +68,10 @@ Method(_PTS,1)

Method(_WAK,1)
 {
+	/* 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/t530/dsdt.asl b/src/mainboard/lenovo/t530/dsdt.asl
index 0e7a965..c73f795 100644
--- a/src/mainboard/lenovo/t530/dsdt.asl
+++ b/src/mainboard/lenovo/t530/dsdt.asl
@@ -24,6 +24,7 @@
 #define BRIGHTNESS_DOWN _SB.PCI0.GFX0.LCD0.DECB
 #define ACPI_VIDEO_DEVICE _SB.PCI0.GFX0
 #define RP03_IS_EXPRESSCARD 1
+#define EC_LENOVO_H8_ME_WORKAROUND 1
 #define HAVE_LCD_SCREEN 1

DefinitionBlock(