mb/google/brya: Create mithrax variant

Create the mithrax variant of the brya0 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:223091246
BRANCH=None
TEST=util/abuild/abuild -p none -t google/brya -x -a
make sure the build includes GOOGLE_MITHRAX

Signed-off-by: John Su <john_su@compal.corp-partner.google.com>
Change-Id: I7c2fa6a74cc8e37397dea7e67e8cfa6506a49bdb
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63776
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Subrata Banik <subratabanik@google.com>

src/mainboard/google/brya/Kconfig

@@ -174,6 +174,7 @@ config MAINBOARD_PART_NUMBER
 	default "Kinox" if BOARD_GOOGLE_KINOX
 	default "Craask" if BOARD_GOOGLE_CRAASK
 	default "Osiris" if BOARD_GOOGLE_OSIRIS
+	default "Mithrax" if BOARD_GOOGLE_MITHRAX
 
 config VARIANT_DIR
 	default "brya0" if BOARD_GOOGLE_BRYA0
@@ -203,6 +204,7 @@ config VARIANT_DIR
 	default "kinox" if BOARD_GOOGLE_KINOX
 	default "craask" if BOARD_GOOGLE_CRAASK
 	default "osiris" if BOARD_GOOGLE_OSIRIS
+	default "mithrax" if BOARD_GOOGLE_MITHRAX
 
 config VBOOT
 	select VBOOT_EARLY_EC_SYNC

src/mainboard/google/brya/Kconfig.name

@@ -203,3 +203,7 @@ config BOARD_GOOGLE_CRAASK
 config BOARD_GOOGLE_OSIRIS
 	bool "->  Osiris"
 	select BOARD_GOOGLE_BASEBOARD_BRYA
+
+config BOARD_GOOGLE_MITHRAX
+	bool "->  Mithrax"
+	select BOARD_GOOGLE_BASEBOARD_BRYA

src/mainboard/google/brya/variants/mithrax/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/brya/variants/mithrax/include/variant/gpio.h

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

src/mainboard/google/brya/variants/mithrax/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

src/mainboard/google/brya/variants/mithrax/memory/dram_id.generated.txt

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

src/mainboard/google/brya/variants/mithrax/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
+# part_id_gen tool from util/spd_tools.
+# See util/spd_tools/README.md for more details and instructions.
+
+# Part Name

src/mainboard/google/brya/variants/mithrax/overridetree.cb

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