mb/google/brox: Create greenbayupoc variant

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

BUG=b:329530883
BRANCH=None
TEST=util/abuild/abuild -p none -t google/brox -x -a
make sure the build includes GOOGLE_GREENBAYUPOC.

Change-Id: I90936d97b41e59c49dd92997146caf580bce1f4f
Signed-off-by: Eren Peng <peng.eren@inventec.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/81565
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Reviewed-by: Shelley Chen <shchen@google.com>

src/mainboard/google/brox/Kconfig

@@ -64,6 +64,9 @@ config BOARD_GOOGLE_BROX_EC_ISH
 	select CHROMEOS_WIFI_SAR if CHROMEOS
 	select SOC_INTEL_STORE_ISH_FW_VERSION
 
+config BOARD_GOOGLE_GREENBAYUPOC
+	select BOARD_GOOGLE_BASEBOARD_BROX
+
 if BOARD_GOOGLE_BROX_COMMON
 
 config BASEBOARD_DIR
@@ -114,9 +117,11 @@ config MAINBOARD_FAMILY
 config MAINBOARD_PART_NUMBER
 	default "Brox_Ec_Ish" if BOARD_GOOGLE_BROX_EC_ISH
 	default "Brox" if BOARD_GOOGLE_BROX
+	default "Greenbayupoc" if BOARD_GOOGLE_GREENBAYUPOC
 
 config VARIANT_DIR
 	default "brox" if BOARD_GOOGLE_BROX || BOARD_GOOGLE_BROX_EC_ISH
+	default "greenbayupoc" if BOARD_GOOGLE_GREENBAYUPOC
 
 config VBOOT
 	select VBOOT_LID_SWITCH

src/mainboard/google/brox/Kconfig.name

@@ -7,3 +7,6 @@ config BOARD_GOOGLE_BROX
 
 config BOARD_GOOGLE_BROX_EC_ISH
 	bool "->  Brox EC ISH"
+
+config BOARD_GOOGLE_GREENBAYUPOC
+	bool "->  Greenbayupoc"

src/mainboard/google/brox/variants/greenbayupoc/include/variant/ec.h

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

src/mainboard/google/brox/variants/greenbayupoc/include/variant/gpio.h

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

src/mainboard/google/brox/variants/greenbayupoc/memory/Makefile.mk

@@ -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

src/mainboard/google/brox/variants/greenbayupoc/memory/dram_id.generated.txt

@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+# This is an auto-generated file. Do not edit!!
+# Generated by:
+# ./util/spd_tools/bin/part_id_gen ADL lp5 src/mainboard/google/brox/variants/brox/memory src/mainboard/google/brox/variants/brox/memory/mem_parts_used.txt
+
+DRAM Part Name                 ID to assign

src/mainboard/google/brox/variants/greenbayupoc/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.mk and dram_id.generated.txt by running the
+# part_id_gen tool from util/spd_tools.
+# See util/spd_tools/README.md for more details and instructions.
+
+# Part Name

src/mainboard/google/brox/variants/greenbayupoc/overridetree.cb

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