mb/google/volteer: Create volet variant

Create the volet variant of the volteer reference board by copying
the template files to a new directory named for the variant.

(Auto-Generated by create_coreboot_variant.sh version 4.5.0).

BUG=b:186334008
BRANCH=None
TEST=util/abuild/abuild -p none -t google/volteer -x -a
make sure the build includes GOOGLE_VOLET

Signed-off-by: Sheng-Liang Pan <sheng-liang.pan@quanta.corp-partner.google.com>
Change-Id: Ic6ca9a78494e3819b0fb39c0bcc70fed95c2c589
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52871
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: YH Lin <yueherngl@google.com>
Reviewed-by: Paul Fagerburg <pfagerburg@chromium.org>

src/mainboard/google/volteer/Kconfig

@@ -107,6 +107,7 @@ config MAINBOARD_PART_NUMBER
 	default "Drobit" if BOARD_GOOGLE_DROBIT
 	default "Copano" if BOARD_GOOGLE_COPANO
 	default "Collis" if BOARD_GOOGLE_COLLIS
+	default "Volet" if BOARD_GOOGLE_VOLET
 
 config MAX_CPUS
 	int
@@ -152,6 +153,7 @@ config VARIANT_DIR
 	default "drobit" if BOARD_GOOGLE_DROBIT
 	default "copano" if BOARD_GOOGLE_COPANO
 	default "collis" if BOARD_GOOGLE_COLLIS
+	default "volet" if BOARD_GOOGLE_VOLET
 
 config VARIANT_HAS_MIPI_CAMERA
 	bool

src/mainboard/google/volteer/Kconfig.name

@@ -87,3 +87,7 @@ config BOARD_GOOGLE_COPANO
 config BOARD_GOOGLE_COLLIS
 	bool "-> Collis"
 	select BOARD_GOOGLE_BASEBOARD_VOLTEER
+
+config BOARD_GOOGLE_VOLET
+	bool "-> Volet"
+	select BOARD_GOOGLE_BASEBOARD_VOLTEER

src/mainboard/google/volteer/variants/volet/include/variant/ec.h

@@ -0,0 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#ifndef __VARIANT_EC_H__
+#define __VARIANT_EC_H__
+
+#include <baseboard/ec.h>
+
+#endif

src/mainboard/google/volteer/variants/volet/include/variant/gpio.h

@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#ifndef VARIANT_GPIO_H
+#define VARIANT_GPIO_H
+
+#include <baseboard/gpio.h>
+
+/* Memory configuration board straps */
+/* Copied from baseboard and may need to change for the new variant. */
+#define GPIO_MEM_CONFIG_0	GPP_C12
+#define GPIO_MEM_CONFIG_1	GPP_C15
+#define GPIO_MEM_CONFIG_2	GPP_C14
+#define GPIO_MEM_CONFIG_3	GPP_D15
+
+#endif

src/mainboard/google/volteer/variants/volet/memory/Makefile.inc

@@ -0,0 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-or-later
+## This is an auto-generated file. Do not edit!!
+## Add memory parts in mem_parts_used.txt and run spd_tools to regenerate.
+
+SPD_SOURCES = placeholder.spd.hex

src/mainboard/google/volteer/variants/volet/memory/dram_id.generated.txt

@@ -0,0 +1 @@
+DRAM Part Name                 ID to assign

src/mainboard/google/volteer/variants/volet/memory/mem_parts_used.txt

@@ -0,0 +1,11 @@
+# This is a CSV file containing a list of memory parts used by this variant.
+# One part per line with an optional fixed ID in column 2.
+# Only include a fixed ID if it is required for legacy reasons!
+# Generated IDs are dependent on the order of parts in this file,
+# so new parts must always be added at the end of the file!
+#
+# Generate an updated Makefile.inc and dram_id.generated.txt by running the
+# gen_part_id tool from util/spd_tools/{ddr4,lp4x}.
+# See util/spd_tools/{ddr4,lp4x}/README.md for more details and instructions.
+
+# Part Name

src/mainboard/google/volteer/variants/volet/overridetree.cb

@@ -0,0 +1,6 @@
+chip soc/intel/tigerlake
+
+	device domain 0 on
+	end
+
+end