google/zork: Convert baseboard directory layout

There are two baseboards within the set of mainboards built
here, with baseboard name appended in the filenames.
Take the style and variable BASEBOARD_DIR from google/brya,
then move and rename the supporting files under separate
directories.

Change-Id: I2046b6f82519540b8596ce925203bd60d1870c1c
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/74471
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/mainboard/google/zork/Kconfig

@@ -88,9 +88,13 @@ config MAINBOARD_PART_NUMBER
 	default "Shuboz" if BOARD_GOOGLE_SHUBOZ
 	default "Gumboz" if BOARD_GOOGLE_GUMBOZ
 
+config BASEBOARD_DIR
+	string
+	default "trembyle" if BOARD_GOOGLE_BASEBOARD_TREMBYLE
+	default "dalboz" if BOARD_GOOGLE_BASEBOARD_DALBOZ
+
 config DEVICETREE
-	default "variants/baseboard/devicetree_trembyle.cb" if BOARD_GOOGLE_BASEBOARD_TREMBYLE
-	default "variants/baseboard/devicetree_dalboz.cb" if BOARD_GOOGLE_BASEBOARD_DALBOZ
+	default "variants/baseboard/\$(CONFIG_BASEBOARD_DIR)/devicetree.cb"
 
 config OVERRIDE_DEVICETREE
 	default "variants/\$(CONFIG_VARIANT_DIR)/overridetree.cb"

src/mainboard/google/zork/Makefile.inc

@@ -13,6 +13,9 @@ ramstage-y += sku_id.c
 verstage-y += chromeos.c
 verstage-y += verstage.c
 
+BASEBOARD_DIR:=$(call strip_quotes,$(CONFIG_BASEBOARD_DIR))
+
+subdirs-y += variants/baseboard/$(BASEBOARD_DIR)
 subdirs-y += variants/baseboard
 subdirs-y += variants/$(VARIANT_DIR)/spd
 subdirs-y += spd

src/mainboard/google/zork/variants/baseboard/Makefile.inc

@@ -1,57 +1,15 @@
 # SPDX-License-Identifier: GPL-2.0-or-later
 
-bootblock-y += helpers.c
-bootblock-$(CONFIG_BOARD_GOOGLE_BASEBOARD_TREMBYLE) += gpio_baseboard_trembyle.c
-bootblock-$(CONFIG_BOARD_GOOGLE_BASEBOARD_DALBOZ) += gpio_baseboard_dalboz.c
+all-y += helpers.c
 
-verstage-y += helpers.c
-verstage-$(CONFIG_BOARD_GOOGLE_BASEBOARD_TREMBYLE) += gpio_baseboard_trembyle.c
-verstage-$(CONFIG_BOARD_GOOGLE_BASEBOARD_DALBOZ) += gpio_baseboard_dalboz.c
 verstage-y += tpm_tis.c
-
-romstage-y += helpers.c
-romstage-$(CONFIG_BOARD_GOOGLE_BASEBOARD_TREMBYLE) += gpio_baseboard_trembyle.c
-romstage-$(CONFIG_BOARD_GOOGLE_BASEBOARD_DALBOZ) += gpio_baseboard_dalboz.c
 romstage-y += tpm_tis.c
-
-ramstage-$(CONFIG_BOARD_GOOGLE_BASEBOARD_TREMBYLE) += gpio_baseboard_trembyle.c
-ramstage-$(CONFIG_BOARD_GOOGLE_BASEBOARD_TREMBYLE) += fsps_baseboard_trembyle.c
-ramstage-$(CONFIG_BOARD_GOOGLE_BASEBOARD_DALBOZ) += gpio_baseboard_dalboz.c
-ramstage-$(CONFIG_BOARD_GOOGLE_BASEBOARD_DALBOZ) += fsps_baseboard_dalboz.c
-ramstage-y += helpers.c
 ramstage-y += tpm_tis.c
 ramstage-y += ramstage_common.c
 
-smm-$(CONFIG_BOARD_GOOGLE_BASEBOARD_TREMBYLE) += gpio_baseboard_trembyle.c
-smm-$(CONFIG_BOARD_GOOGLE_BASEBOARD_DALBOZ) += gpio_baseboard_dalboz.c
-
 # Add OEM ID table
 ifeq ($(CONFIG_USE_OEM_BIN),y)
 cbfs-files-y += oem.bin
 oem.bin-file := $(call strip_quotes,$(CONFIG_OEM_BIN_FILE))
 oem.bin-type := raw
 endif #($(CONFIG_USE_OEM_BIN),y)
-
-# APCB Board ID GPIO configuration.
-# These GPIOs determine which memory SPD will be used during boot.
-# APCB_BOARD_ID_GPIO[0-3] = GPIO_NUMBER GPIO_IO_MUX GPIO_BANK_CTL
-# GPIO_NUMBER: FCH GPIO number
-# GPIO_IO_MUX: Value write to IOMUX to configure this GPIO
-# GPIO_BANK_CTL: Value write to GPIOBankCtl[23:16] to configure this GPIO
-# APCB_POPULATE_2ND_CHANNEL: Populates 2nd memory channel in APCB when true.
-#	Trembyle based boards select 1 or 2 channels based on AGPIO84
-#	Dalboz based boards only support 1 channel
-ifeq ($(CONFIG_BOARD_GOOGLE_BASEBOARD_TREMBYLE),y)
-APCB_BOARD_ID_GPIO0 = 121 1 0
-APCB_BOARD_ID_GPIO1 = 120 1 0
-APCB_BOARD_ID_GPIO2 = 131 3 0
-APCB_BOARD_ID_GPIO3 = 116 1 0
-APCB_POPULATE_2ND_CHANNEL = true
-else ifeq ($(CONFIG_BOARD_GOOGLE_BASEBOARD_DALBOZ),y)
-APCB_BOARD_ID_GPIO0 = 132 1 0
-APCB_BOARD_ID_GPIO1 = 90 1 0
-APCB_BOARD_ID_GPIO2 = 86 3 0
-APCB_BOARD_ID_GPIO3 = 69 1 0
-else
-$(error Undefined APCB selection GPIOS for Zork baseboard)
-endif #($(CONFIG_BOARD_GOOGLE_BASEBOARD_TREMBYLE),y)

src/mainboard/google/zork/variants/baseboard/dalboz/Makefile.inc

@@ -0,0 +1,19 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+all-y += gpio.c
+smm-y += gpio.c
+ramstage-y += fsps.c
+
+# APCB Board ID GPIO configuration.
+# These GPIOs determine which memory SPD will be used during boot.
+# APCB_BOARD_ID_GPIO[0-3] = GPIO_NUMBER GPIO_IO_MUX GPIO_BANK_CTL
+# GPIO_NUMBER: FCH GPIO number
+# GPIO_IO_MUX: Value write to IOMUX to configure this GPIO
+# GPIO_BANK_CTL: Value write to GPIOBankCtl[23:16] to configure this GPIO
+# APCB_POPULATE_2ND_CHANNEL: Populates 2nd memory channel in APCB when true.
+#	Trembyle based boards select 1 or 2 channels based on AGPIO84
+#	Dalboz based boards only support 1 channel
+APCB_BOARD_ID_GPIO0 = 132 1 0
+APCB_BOARD_ID_GPIO1 = 90 1 0
+APCB_BOARD_ID_GPIO2 = 86 3 0
+APCB_BOARD_ID_GPIO3 = 69 1 0

src/mainboard/google/zork/variants/baseboard/trembyle/Makefile.inc

@@ -0,0 +1,20 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+all-y += gpio.c
+smm-y += gpio.c
+ramstage-y += fsps.c
+
+# APCB Board ID GPIO configuration.
+# These GPIOs determine which memory SPD will be used during boot.
+# APCB_BOARD_ID_GPIO[0-3] = GPIO_NUMBER GPIO_IO_MUX GPIO_BANK_CTL
+# GPIO_NUMBER: FCH GPIO number
+# GPIO_IO_MUX: Value write to IOMUX to configure this GPIO
+# GPIO_BANK_CTL: Value write to GPIOBankCtl[23:16] to configure this GPIO
+# APCB_POPULATE_2ND_CHANNEL: Populates 2nd memory channel in APCB when true.
+#	Trembyle based boards select 1 or 2 channels based on AGPIO84
+#	Dalboz based boards only support 1 channel
+APCB_BOARD_ID_GPIO0 = 121 1 0
+APCB_BOARD_ID_GPIO1 = 120 1 0
+APCB_BOARD_ID_GPIO2 = 131 3 0
+APCB_BOARD_ID_GPIO3 = 116 1 0
+APCB_POPULATE_2ND_CHANNEL = true