mb/google/nissa/var/guren: Create empty variant for guren

Create the template files to a new directory named for the guren variant.

BUG=b:397149037
BRANCH=firmware-nissa-15217.B
TEST=None

Change-Id: I23803aaceb122d2b9e3c2215914643593afa1246
Signed-off-by: Brian Hsu <Brian_Hsu@pegatron.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/86492
Reviewed-by: Subrata Banik <subratabanik@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <ericllai@google.com>

src/mainboard/google/brya/Kconfig

@@ -295,6 +295,9 @@ config BOARD_GOOGLE_GOTHRAX
 	select DRIVERS_I2C_SX9324_SUPPORT_LEGACY_LINUX_DRIVER
 	select HAVE_WWAN_POWER_SEQUENCE
 
+config BOARD_GOOGLE_GUREN
+	select BOARD_GOOGLE_BASEBOARD_NISSA
+
 config BOARD_GOOGLE_HADES
 	select BOARD_GOOGLE_BASEBOARD_HADES
 	select DRIVERS_GENESYSLOGIC_GL9755
@@ -766,6 +769,7 @@ config DRIVER_TPM_I2C_BUS
 	default 0x1 if BOARD_GOOGLE_GLADIOS
 	default 0x0 if BOARD_GOOGLE_GLASSWAY
 	default 0x0 if BOARD_GOOGLE_GOTHRAX
+	default 0x0 if BOARD_GOOGLE_GUREN
 	default 0x3 if BOARD_GOOGLE_HADES
 	default 0x0 if BOARD_GOOGLE_JOXER
 	default 0x1 if BOARD_GOOGLE_KANO
@@ -847,6 +851,7 @@ config TPM_TIS_ACPI_INTERRUPT
 	default 13 if BOARD_GOOGLE_GLADIOS
 	default 13 if BOARD_GOOGLE_GLASSWAY
 	default 13 if BOARD_GOOGLE_GOTHRAX
+	default 13 if BOARD_GOOGLE_GUREN
 	default 20 if BOARD_GOOGLE_HADES # GPE0_DW0_20 (GPP_A20_IRQ)
 	default 13 if BOARD_GOOGLE_JOXER
 	default 13 if BOARD_GOOGLE_KANO
@@ -932,6 +937,7 @@ config MAINBOARD_PART_NUMBER
 	default "Gladios" if BOARD_GOOGLE_GLADIOS
 	default "Glassway" if BOARD_GOOGLE_GLASSWAY
 	default "Gothrax" if BOARD_GOOGLE_GOTHRAX
+	default "Guren" if BOARD_GOOGLE_GUREN
 	default "Hades" if BOARD_GOOGLE_HADES
 	default "Joxer" if BOARD_GOOGLE_JOXER
 	default "Kano" if BOARD_GOOGLE_KANO
@@ -1006,6 +1012,7 @@ config VARIANT_DIR
 	default "gladios" if BOARD_GOOGLE_GLADIOS
 	default "glassway" if BOARD_GOOGLE_GLASSWAY
 	default "gothrax" if BOARD_GOOGLE_GOTHRAX
+	default "guren" if BOARD_GOOGLE_GUREN
 	default "hades" if BOARD_GOOGLE_HADES
 	default "joxer" if BOARD_GOOGLE_JOXER
 	default "kano" if BOARD_GOOGLE_KANO

src/mainboard/google/brya/Kconfig.name

@@ -68,6 +68,9 @@ config BOARD_GOOGLE_GLASSWAY
 config BOARD_GOOGLE_GOTHRAX
 	bool "->  Gothrax"
 
+config BOARD_GOOGLE_GUREN
+	bool "->  Guren"
+
 config BOARD_GOOGLE_HADES
 	bool "->  Hades"
 

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

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

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

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