mb/google/nissa: Create dirks variant

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

The dirks variant is a twinlake platform.

BUG=b:389391653
TEST=util/abuild/abuild -p none -t google/brya -x -a
make sure the build includes GOOGLE_DIRKS

Change-Id: I57ffb6025ee2115fa558668dc685a1970fc738d0
Signed-off-by: David Wu <david_wu@quanta.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/85947
Reviewed-by: Jayvik Desai <jayvik@google.com>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Reviewed-by: Dtrain Hsu <dtrain_hsu@compal.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Dinesh Gehlot <digehlot@google.com>
Reviewed-by: Eric Lai <ericllai@google.com>
Reviewed-by: Subrata Banik <subratabanik@google.com>

src/mainboard/google/brya/Kconfig

@@ -219,6 +219,10 @@ config BOARD_GOOGLE_CROTA
 	select INTEL_GMA_HAVE_VBT
 	select SOC_INTEL_RAPTORLAKE
 
+config BOARD_GOOGLE_DIRKS
+	select BOARD_GOOGLE_BASEBOARD_NISSA
+	select SOC_INTEL_TWINLAKE
+
 config BOARD_GOOGLE_DOCHI
 	select BOARD_GOOGLE_BASEBOARD_BRYA
 	select CHROMEOS_WIFI_SAR if CHROMEOS
@@ -738,6 +742,7 @@ config DRIVER_TPM_I2C_BUS
 	default 0x0 if BOARD_GOOGLE_CRAASK
 	default 0x0 if BOARD_GOOGLE_CRAASKOV
 	default 0x1 if BOARD_GOOGLE_CROTA
+	default 0x0 if BOARD_GOOGLE_DIRKS
 	default 0x1 if BOARD_GOOGLE_DOCHI
 	default 0x0 if BOARD_GOOGLE_DOMIKA
 	default 0x1 if BOARD_GOOGLE_FELWINTER
@@ -817,6 +822,7 @@ config TPM_TIS_ACPI_INTERRUPT
 	default 13 if BOARD_GOOGLE_CRAASK
 	default 13 if BOARD_GOOGLE_CRAASKOV
 	default 13 if BOARD_GOOGLE_CROTA
+	default 13 if BOARD_GOOGLE_DIRKS
 	default 13 if BOARD_GOOGLE_DOCHI
 	default 13 if BOARD_GOOGLE_DOMIKA
 	default 13 if BOARD_GOOGLE_FELWINTER
@@ -900,6 +906,7 @@ config MAINBOARD_PART_NUMBER
 	default "Craask" if BOARD_GOOGLE_CRAASK
 	default "Craaskov" if BOARD_GOOGLE_CRAASKOV
 	default "Crota" if BOARD_GOOGLE_CROTA
+	default "Dirks" if BOARD_GOOGLE_DIRKS
 	default "Dochi" if BOARD_GOOGLE_DOCHI
 	default "Domika" if BOARD_GOOGLE_DOMIKA
 	default "Felwinter" if BOARD_GOOGLE_FELWINTER
@@ -972,6 +979,7 @@ config VARIANT_DIR
 	default "craask" if BOARD_GOOGLE_CRAASK
 	default "craaskov" if BOARD_GOOGLE_CRAASKOV
 	default "crota" if BOARD_GOOGLE_CROTA
+	default "dirks" if BOARD_GOOGLE_DIRKS
 	default "dochi" if BOARD_GOOGLE_DOCHI
 	default "yavilla" if BOARD_GOOGLE_DOMIKA
 	default "felwinter" if BOARD_GOOGLE_FELWINTER

src/mainboard/google/brya/Kconfig.name

@@ -38,6 +38,9 @@ config BOARD_GOOGLE_CONSTITUTION
 config BOARD_GOOGLE_CROTA
 	bool "->  Crota"
 
+config BOARD_GOOGLE_DIRKS
+	bool "->  Dirks"
+
 config BOARD_GOOGLE_DOCHI
 	bool "->  Dochi"
 

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

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

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

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