mb/system76/addw1: Add System76 Adder Workstation 1

Change-Id: I5dd3bc320ca640728e1d86180c6bfa0dc7295760
Signed-off-by: Jeremy Soller <jeremy@system76.com>
Signed-off-by: Tim Crawford <tcrawford@system76.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48421
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>

src/mainboard/system76/addw1/Kconfig

@@ -0,0 +1,65 @@
+if BOARD_SYSTEM76_ADDW1
+
+config BOARD_SPECIFIC_OPTIONS
+	def_bool y
+	select BOARD_ROMSIZE_KB_16384
+	select DRIVERS_I2C_HID
+	select DRIVERS_I2C_TAS5825M
+	select EC_SYSTEM76_EC
+	select EC_SYSTEM76_EC_BAT_THRESHOLDS
+	select EC_SYSTEM76_EC_COLOR_KEYBOARD
+	select EC_SYSTEM76_EC_OLED
+	select HAVE_ACPI_RESUME
+	select HAVE_ACPI_TABLES
+	select HAVE_CMOS_DEFAULT
+	select HAVE_OPTION_TABLE
+	select INTEL_GMA_HAVE_VBT
+	select INTEL_LPSS_UART_FOR_CONSOLE
+	select MAINBOARD_HAS_LPC_TPM
+	select MAINBOARD_HAS_TPM2
+	select NO_UART_ON_SUPERIO
+	select PCIEXP_HOTPLUG
+	select SOC_INTEL_CANNONLAKE_PCH_H
+	select SOC_INTEL_COFFEELAKE if BOARD_SYSTEM76_ADDW1
+	select SOC_INTEL_COMMON_BLOCK_HDA_VERB
+	select SPD_READ_BY_WORD
+	select SYSTEM_TYPE_LAPTOP
+	select TPM_RDRESP_NEED_DELAY
+
+config MAINBOARD_DIR
+	default "system76/addw1"
+
+config VARIANT_DIR
+	default "addw1" if BOARD_SYSTEM76_ADDW1
+
+config OVERRIDE_DEVICETREE
+	default "variants/\$(CONFIG_VARIANT_DIR)/overridetree.cb"
+
+config MAINBOARD_PART_NUMBER
+	default "addw1" if BOARD_SYSTEM76_ADDW1
+
+config MAINBOARD_SMBIOS_PRODUCT_NAME
+	default "Adder WS"
+
+config MAINBOARD_VERSION
+	default "addw1" if BOARD_SYSTEM76_ADDW1
+
+config CBFS_SIZE
+	default 0xA00000
+
+config CONSOLE_POST
+	default y
+
+config ONBOARD_VGA_IS_PRIMARY
+	default y
+
+config UART_FOR_CONSOLE
+	default 2
+
+config DIMM_MAX
+	default 2
+
+config POST_DEVICE
+	default n
+
+endif