mb/asus/p8z77-v_lx2: Transform into variant setup

Get ready to squash all Asus Z77 boards together, so as to factor out
some redundant code.

Tested with BUILD_TIMELESS=1, coreboot.rom for the Asus P8Z77-V LX2
remains identical when not adding the .config file in it.

Change-Id: I701ec4adbc65732ffc0a60d311bf07bf7f414ebf
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/54409
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

MAINTAINERS

@@ -201,10 +201,10 @@ M:	Vlado Cibic <vladocb@protonmail.com>
 S:	Maintained
 F:	src/mainboard/asus/p8z77-m_pro/
 
-ASUS P8Z77-V LX2 MAINBOARD
+ASUS P8Z77 SERIES MAINBOARDS
 M:	Angel Pons <th3fanbus@gmail.com>
 S:	Maintained
-F:	src/mainboard/asus/p8z77-v_lx2/
+F:	src/mainboard/asus/p8z77-series/
 
 
 

src/mainboard/asus/p8z77-series/Kconfig

@@ -0,0 +1,39 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
+config BOARD_ASUS_P8Z77_SERIES
+	bool
+	select HAVE_ACPI_RESUME
+	select HAVE_ACPI_TABLES
+	select HAVE_CMOS_DEFAULT
+	select HAVE_OPTION_TABLE
+	select INTEL_GMA_HAVE_VBT
+	select MAINBOARD_HAS_LIBGFXINIT
+	select NORTHBRIDGE_INTEL_SANDYBRIDGE
+	select SERIRQ_CONTINUOUS_MODE
+	select SOUTHBRIDGE_INTEL_C216
+
+if BOARD_ASUS_P8Z77_SERIES
+
+config MAINBOARD_DIR
+	string
+	default "asus/p8z77-series"
+
+config VARIANT_DIR
+	string
+	default "p8z77-v_lx2" if BOARD_ASUS_P8Z77_V_LX2
+
+config MAINBOARD_PART_NUMBER
+	string
+	default "P8Z77-V LX2" if BOARD_ASUS_P8Z77_V_LX2
+
+config DEVICETREE
+	string
+	default "variants/\$(CONFIG_VARIANT_DIR)/devicetree.cb"
+
+config CMOS_DEFAULT_FILE
+	default "src/mainboard/\$(MAINBOARDDIR)/variants/\$(CONFIG_VARIANT_DIR)/cmos.default"
+
+config CMOS_LAYOUT_FILE
+	default "src/mainboard/\$(MAINBOARDDIR)/variants/\$(CONFIG_VARIANT_DIR)/cmos.layout"
+
+endif

src/mainboard/asus/p8z77-series/Kconfig.name

@@ -0,0 +1,7 @@
+config BOARD_ASUS_P8Z77_V_LX2
+	bool "P8Z77-V LX2"
+	select BOARD_ASUS_P8Z77_SERIES
+	select BOARD_ROMSIZE_KB_8192
+	select REALTEK_8168_RESET
+	select SUPERIO_NUVOTON_NCT6779D
+	select USE_NATIVE_RAMINIT

src/mainboard/asus/p8z77-series/Makefile.inc

@@ -0,0 +1,8 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
+bootblock-y += variants/$(VARIANT_DIR)/early_init.c
+romstage-y  += variants/$(VARIANT_DIR)/early_init.c
+bootblock-y += variants/$(VARIANT_DIR)/gpio.c
+romstage-y  += variants/$(VARIANT_DIR)/gpio.c
+ramstage-y  += variants/$(VARIANT_DIR)/hda_verb.c
+ramstage-$(CONFIG_MAINBOARD_USE_LIBGFXINIT) += variants/$(VARIANT_DIR)/gma-mainboard.ads

src/mainboard/asus/p8z77-series/board_info.txt

@@ -0,0 +1,5 @@
+Category: desktop
+ROM package: DIP-8
+ROM protocol: SPI
+ROM socketed: y
+Flashrom support: y

src/mainboard/asus/p8z77-v_lx2/Kconfig

@@ -1,29 +0,0 @@
-## SPDX-License-Identifier: GPL-2.0-only
-
-if BOARD_ASUS_P8Z77_V_LX2
-
-config BOARD_SPECIFIC_OPTIONS
-	def_bool y
-	select BOARD_ROMSIZE_KB_8192
-	select HAVE_ACPI_RESUME
-	select HAVE_ACPI_TABLES
-	select HAVE_CMOS_DEFAULT
-	select HAVE_OPTION_TABLE
-	select INTEL_GMA_HAVE_VBT
-	select MAINBOARD_HAS_LIBGFXINIT
-	select NORTHBRIDGE_INTEL_SANDYBRIDGE
-	select REALTEK_8168_RESET
-	select SERIRQ_CONTINUOUS_MODE
-	select SOUTHBRIDGE_INTEL_C216
-	select SUPERIO_NUVOTON_NCT6779D
-	select USE_NATIVE_RAMINIT
-
-config MAINBOARD_DIR
-	string
-	default "asus/p8z77-v_lx2"
-
-config MAINBOARD_PART_NUMBER
-	string
-	default "P8Z77-V LX2"
-
-endif

src/mainboard/asus/p8z77-v_lx2/Kconfig.name

@@ -1,2 +0,0 @@
-config BOARD_ASUS_P8Z77_V_LX2
-	bool "P8Z77-V LX2"

src/mainboard/asus/p8z77-v_lx2/Makefile.inc

@@ -1,7 +0,0 @@
-bootblock-y += early_init.c
-bootblock-y += gpio.c
-
-romstage-y += early_init.c
-romstage-y += gpio.c
-
-ramstage-$(CONFIG_MAINBOARD_USE_LIBGFXINIT) += gma-mainboard.ads