util/mb/google: add template files for guybrush

Create template for guyrbsuh variant creation.

BRANCH=none
BUG=b:194031783
TEST=n/a

Change-Id: If62c1a63d0890539d4b43f840f75ee9d7ceab4f8
Signed-off-by: Bhanu Prakash Maiya <bhanumaiya@google.com>
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/56918
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Fagerburg <pfagerburg@chromium.org>

util/mainboard/google/guybrush/template/Makefile.inc

@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+subdirs-y += ./memory

util/mainboard/google/guybrush/template/include/variant/ec.h

@@ -0,0 +1,3 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include <baseboard/ec.h>

util/mainboard/google/guybrush/template/include/variant/gpio.h

@@ -0,0 +1,3 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include <baseboard/gpio.h>

util/mainboard/google/guybrush/template/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

util/mainboard/google/guybrush/template/memory/dram_id.generated.txt

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

util/mainboard/google/guybrush/template/memory/mem_parts_used.txt

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+# 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, Fixed ID (optional)

util/mainboard/google/guybrush/template/overridetree.cb

@@ -0,0 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+chip soc/amd/cezanne
+	device domain 0 on
+
+	end # domain
+end	# chip soc/amd/cezanne