mainboard/google/reef: add sand variant

Create the initial Sand variant which refers to the Reef.
Sand is APL board that derives from reference board Reef.

BRANCH=master
BUG=chrome-os-partner:62200
TEST=Build (as initial setup)
Signed-off-by: YH Lin <yueherngl@chromium.org>

Change-Id: Iba8c5653b6176676c759d2b48063f0c0c6cde625
Reviewed-on: https://review.coreboot.org/18324
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>

src/mainboard/google/reef/Kconfig

@@ -64,6 +64,7 @@ config VARIANT_DIR
 	string
 	default "reef" if BOARD_GOOGLE_REEF
 	default "pyro" if BOARD_GOOGLE_PYRO
+	default "sand" if BOARD_GOOGLE_SAND
 	default "snappy" if BOARD_GOOGLE_SNAPPY
 
 config DEVICETREE
@@ -76,6 +77,7 @@ config MAINBOARD_PART_NUMBER
 	string
 	default "Reef" if BOARD_GOOGLE_REEF
 	default "Pyro" if BOARD_GOOGLE_PYRO
+	default "Sand" if BOARD_GOOGLE_SAND
 	default "Snappy" if BOARD_GOOGLE_SNAPPY
 
 config MAINBOARD_FAMILY
@@ -87,6 +89,7 @@ config GBB_HWID
 	depends on CHROMEOS
 	default "REEF TEST 3240" if BOARD_GOOGLE_REEF
 	default "PYRO TEST 0290" if BOARD_GOOGLE_PYRO
+	default "SAND TEST 1904" if BOARD_GOOGLE_SAND
 	default "SNAPPY TEST 1088" if BOARD_GOOGLE_SNAPPY
 
 config MAX_CPUS

src/mainboard/google/reef/Kconfig.name

@@ -8,6 +8,11 @@ config BOARD_GOOGLE_PYRO
 	select BOARD_GOOGLE_BASEBOARD_REEF
 	select BASEBOARD_REEF_LAPTOP
 
+config BOARD_GOOGLE_SAND
+	bool "Sand"
+	select BOARD_GOOGLE_BASEBOARD_REEF
+	select BASEBOARD_REEF_LAPTOP
+
 config BOARD_GOOGLE_SNAPPY
 	bool "Snappy"
 	select BOARD_GOOGLE_BASEBOARD_REEF

src/mainboard/google/reef/variants/sand/include/variant/acpi/dptf.asl

@@ -0,0 +1,18 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2014 Google Inc.
+ * Copyright (C) 2015 Intel Corporation.
+ *
+ * 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.
+ */
+
+/* Use the one from baseboard for now until the real testing is done. */
+#include <baseboard/acpi/dptf.asl>

src/mainboard/google/reef/variants/sand/include/variant/ec.h

@@ -0,0 +1,17 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2016 Google Inc.
+ *
+ * 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.
+ */
+
+/* Use the one from baseboard for now */
+#include <baseboard/ec.h>

src/mainboard/google/reef/variants/sand/include/variant/gpio.h

@@ -0,0 +1,17 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2016 Google Inc.
+ *
+ * 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.
+ */
+
+/* Use the one from baseboard for now */
+#include <baseboard/gpio.h>