lenovo/t420: Add new port

This is based on t420s. Tested on a T420 without discrete GPU.
There is no support for nvidia gpu and optimus.

Signed-off-by: Nicolas Reinecke <nr@das-labor.org>
Tested-by: Iru Cai <mytbk920423@gmail.com>
Change-Id: Ie9405966e56180ac1c43a3c5b83181ee500177c8
Reviewed-on: https://review.coreboot.org/11765
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>

3 files changed, 57 insertions, 0 deletions

diff --git a/src/mainboard/lenovo/t420/acpi/ec.asl b/src/mainboard/lenovo/t420/acpi/ec.asl
new file mode 100644
index 0000000000..d631f121fb
--- /dev/null
+++ b/src/mainboard/lenovo/t420/acpi/ec.asl
@@ -0,0 +1,21 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (c) 2011 Sven Schnelle <svens@stackframe.org>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; version 2 of
+ * the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <ec/lenovo/h8/acpi/ec.asl>
+
+Scope(\_SB.PCI0.LPCB.EC)
+{
+}
diff --git a/src/mainboard/lenovo/t420/acpi/platform.asl b/src/mainboard/lenovo/t420/acpi/platform.asl
new file mode 100644
index 0000000000..2ba5b2000d
--- /dev/null
+++ b/src/mainboard/lenovo/t420/acpi/platform.asl
@@ -0,0 +1,35 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2011-2012 The Chromium OS Authors. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+/* The _PTS method (Prepare To Sleep) is called before the OS is
+ * entering a sleep state. The sleep state number is passed in Arg0
+ */
+
+Method(_PTS,1)
+{
+	\_SB.PCI0.LPCB.EC.RADI(0)
+}
+
+/* The _WAK method is called on system wakeup */
+
+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/t420/acpi/superio.asl b/src/mainboard/lenovo/t420/acpi/superio.asl
new file mode 100644
index 0000000000..03b65bc816
--- /dev/null
+++ b/src/mainboard/lenovo/t420/acpi/superio.asl
@@ -0,0 +1 @@
+#include <drivers/pc80/ps2_controller.asl>