mb/clevo/kbl-u: Add Clevo N130WU/N131WU

Working:
- TianoCore
- NVMe, SATA3
- USB2, USB3
- Thunderbolt
- Graphics (GOP and libgfxinit)
- Sound
- Webcam
- WLAN, LAN, Bluetooth, LTE
- Keyboard, touchpad
- TPM
- flashrom support; reading / flashing from Linux
- ACPI S3

WIP:
- Documentation

Not working:
- EC ACPI (e.g. Fn keys, battery and power information)

Boots Arch Linux (Linux 5.8.12) successfully.

Change-Id: I364f5849ef88f43b85efbd7a635a27e54d08c513
Signed-off-by: Felix Singer <felixsinger@posteo.net>
Signed-off-by: Paul Menzel <pmenzel@molgen.mpg.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/28640
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>

19 files changed, 994 insertions, 0 deletions

diff --git a/src/mainboard/clevo/kbl-u/Kconfig b/src/mainboard/clevo/kbl-u/Kconfig
new file mode 100644
index 0000000000..ed0600a018
--- /dev/null
+++ b/src/mainboard/clevo/kbl-u/Kconfig
@@ -0,0 +1,98 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
+if BOARD_CLEVO_N130WU
+
+config BOARD_SPECIFIC_OPTIONS
+	def_bool y
+	select BOARD_ROMSIZE_KB_8192
+	select EC_ACPI
+	select HAVE_ACPI_RESUME
+	select HAVE_ACPI_TABLES
+#	select HAVE_CMOS_DEFAULT
+#	select HAVE_SMI_HANDLER
+	select INTEL_GMA_HAVE_VBT
+	select INTEL_LPSS_UART_FOR_CONSOLE
+	select MAINBOARD_HAS_LIBGFXINIT
+	select MAINBOARD_HAS_LPC_TPM
+	select MAINBOARD_HAS_TPM2
+	select NO_UART_ON_SUPERIO
+	select SOC_INTEL_COMMON_BLOCK_HDA_VERB
+	select SOC_INTEL_KABYLAKE
+	select SPD_READ_BY_WORD
+	select SYSTEM_TYPE_LAPTOP
+
+config VBOOT
+	select VBOOT_NO_BOARD_SUPPORT
+	select GBB_FLAG_DISABLE_LID_SHUTDOWN
+	select GBB_FLAG_DISABLE_EC_SOFTWARE_SYNC
+	select GBB_FLAG_DISABLE_PD_SOFTWARE_SYNC
+	select GBB_FLAG_DISABLE_FWMP
+
+config MAINBOARD_DIR
+	string
+	default "clevo/kbl-u"
+
+config VARIANT_DIR
+	string
+	default "n13xwu" if BOARD_CLEVO_N130WU
+
+config MAINBOARD_PART_NUMBER
+	string
+	default "N130WU" if BOARD_CLEVO_N130WU
+
+config CBFS_SIZE
+	hex
+	default 0x600000 if BOARD_CLEVO_N130WU
+
+config DEVICETREE
+	string
+	default "variants/$(CONFIG_VARIANT_DIR)/devicetree.cb"
+
+config FMDFILE
+	string
+	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/variants/$(CONFIG_VARIANT_DIR)/fmds/vboot-ro.fmd"	if VBOOT && !VBOOT_SLOTS_RW_A
+	# TODO
+#	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/fmds/vboot-roa.fmd"	if VBOOT_SLOTS_RW_A && !VBOOT_SLOTS_RW_AB
+#	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/fmds/vboot-roab.fmd"	if VBOOT_SLOTS_RW_AB
+
+config MAX_CPUS
+	int
+	default 8
+
+config DIMM_MAX
+	int
+	default 2
+
+config DIMM_SPD_SIZE
+	int
+	default 512
+
+config VGA_BIOS_ID
+	string
+	default "8086,5917" if BOARD_CLEVO_N130WU
+
+config PXE_ROM_ID
+	string
+	default "10ec,8168"
+
+config UART_FOR_CONSOLE
+	int
+	default 2
+
+config POST_DEVICE
+	bool
+	default n
+
+config CONSOLE_POST
+	bool
+	default y
+
+config LINEAR_FRAMEBUFFER_MAX_WIDTH
+	int
+	default 1920
+
+config LINEAR_FRAMEBUFFER_MAX_HEIGHT
+	int
+	default 1080
+
+endif
diff --git a/src/mainboard/clevo/kbl-u/Kconfig.name b/src/mainboard/clevo/kbl-u/Kconfig.name
new file mode 100644
index 0000000000..5a6f699c67
--- /dev/null
+++ b/src/mainboard/clevo/kbl-u/Kconfig.name
@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
+comment "Kaby Lake U"
+
+config BOARD_CLEVO_N130WU
+	bool "N130WU / N131WU"
diff --git a/src/mainboard/clevo/kbl-u/Makefile.inc b/src/mainboard/clevo/kbl-u/Makefile.inc
new file mode 100644
index 0000000000..b424d4da19
--- /dev/null
+++ b/src/mainboard/clevo/kbl-u/Makefile.inc
@@ -0,0 +1,11 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
+CPPFLAGS_common += -I$(src)/mainboard/$(MAINBOARDDIR)/include
+
+bootblock-y += bootblock.c
+bootblock-y += variants/$(VARIANT_DIR)/gpio_early.c
+
+ramstage-y += ramstage.c
+ramstage-y += variants/$(VARIANT_DIR)/hda_verb.c
+ramstage-y += variants/$(VARIANT_DIR)/gpio.c
+ramstage-$(CONFIG_MAINBOARD_USE_LIBGFXINIT) += variants/$(VARIANT_DIR)/gma-mainboard.ads
diff --git a/src/mainboard/clevo/kbl-u/acpi/ec.asl b/src/mainboard/clevo/kbl-u/acpi/ec.asl
new file mode 100644
index 0000000000..e69de29bb2
--- /dev/null
+++ b/src/mainboard/clevo/kbl-u/acpi/ec.asl
diff --git a/src/mainboard/clevo/kbl-u/acpi/superio.asl b/src/mainboard/clevo/kbl-u/acpi/superio.asl
new file mode 100644
index 0000000000..55b1db5b11
--- /dev/null
+++ b/src/mainboard/clevo/kbl-u/acpi/superio.asl
@@ -0,0 +1,3 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <drivers/pc80/pc/ps2_controller.asl>
diff --git a/src/mainboard/clevo/kbl-u/board_info.txt b/src/mainboard/clevo/kbl-u/board_info.txt
new file mode 100644
index 0000000000..97514fc003
--- /dev/null
+++ b/src/mainboard/clevo/kbl-u/board_info.txt
@@ -0,0 +1,7 @@
+Vendor name: Clevo
+Category: laptop
+Release year: 2018
+ROM package: SOIC-8
+ROM protocol: SPI
+ROM socketed: n
+Flashrom support: y
diff --git a/src/mainboard/clevo/kbl-u/bootblock.c b/src/mainboard/clevo/kbl-u/bootblock.c
new file mode 100644
index 0000000000..067c9ecab2
--- /dev/null
+++ b/src/mainboard/clevo/kbl-u/bootblock.c
@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <bootblock_common.h>
+#include <mainboard/gpio.h>
+
+void bootblock_mainboard_early_init(void)
+{
+	mainboard_configure_gpios();
+}
diff --git a/src/mainboard/clevo/kbl-u/dsdt.asl b/src/mainboard/clevo/kbl-u/dsdt.asl
new file mode 100644
index 0000000000..21acf37dc2
--- /dev/null
+++ b/src/mainboard/clevo/kbl-u/dsdt.asl
@@ -0,0 +1,22 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <acpi/acpi.h>
+DefinitionBlock(
+	"dsdt.aml",
+	"DSDT",
+	ACPI_DSDT_REV_2,
+	OEM_ID,
+	ACPI_TABLE_CREATOR,
+	0x20110725	// OEM revision
+)
+{
+	#include <soc/intel/skylake/acpi/globalnvs.asl>
+	#include <cpu/intel/common/acpi/cpu.asl>
+
+	Device (\_SB.PCI0) {
+		#include <soc/intel/skylake/acpi/systemagent.asl>
+		#include <soc/intel/skylake/acpi/pch.asl>
+	}
+
+	#include <southbridge/intel/common/acpi/sleepstates.asl>
+}
diff --git a/src/mainboard/clevo/kbl-u/include/mainboard/gpio.h b/src/mainboard/clevo/kbl-u/include/mainboard/gpio.h
new file mode 100644
index 0000000000..ef2a21c418
--- /dev/null
+++ b/src/mainboard/clevo/kbl-u/include/mainboard/gpio.h
@@ -0,0 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef MAINBOARD_GPIO_H
+#define MAINBOARD_GPIO_H
+
+void mainboard_configure_gpios(void);
+
+#endif
diff --git a/src/mainboard/clevo/kbl-u/ramstage.c b/src/mainboard/clevo/kbl-u/ramstage.c
new file mode 100644
index 0000000000..b5d67864a0
--- /dev/null
+++ b/src/mainboard/clevo/kbl-u/ramstage.c
@@ -0,0 +1,18 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <mainboard/gpio.h>
+#include <soc/ramstage.h>
+
+/*
+ * TODO:
+ * - Add kill switches for WLAN, BT, LTE, CCD
+ * - Add support for WoL (LAN, WLAN)
+ * - Make M.2 port configurable (SATA <> PCIe)
+ *   - Make SATA DevSlp configurable
+ * - Make TBT port configurable (TBT <> DisplayPort)
+ */
+
+void mainboard_silicon_init_params(FSP_SIL_UPD *params)
+{
+	mainboard_configure_gpios();
+}
diff --git a/src/mainboard/clevo/kbl-u/romstage.c b/src/mainboard/clevo/kbl-u/romstage.c
new file mode 100644
index 0000000000..1399d33608
--- /dev/null
+++ b/src/mainboard/clevo/kbl-u/romstage.c
@@ -0,0 +1,38 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <soc/romstage.h>
+#include <spd_bin.h>
+#include <string.h>
+
+static void mainboard_fill_rcomp_res_data(void *rcomp_ptr)
+{
+	const u16 RcompResistor[3] = {121, 81, 100};
+	memcpy(rcomp_ptr, RcompResistor, sizeof(RcompResistor));
+}
+
+static void mainboard_fill_rcomp_strength_data(void *rcomp_strength_ptr)
+{
+	const u16 RcompTarget[5] = {100, 40, 20, 20, 26};
+	memcpy(rcomp_strength_ptr, RcompTarget, sizeof(RcompTarget));
+}
+
+void mainboard_memory_init_params(FSPM_UPD *mupd)
+{
+	FSP_M_CONFIG *mem_cfg;
+	struct spd_block blk = {
+		.addr_map = {0x50, 0x52},
+	};
+
+	mem_cfg = &mupd->FspmConfig;
+
+	get_spd_smbus(&blk);
+	dump_spd_info(&blk);
+
+	mainboard_fill_rcomp_res_data(&mem_cfg->RcompResistor);
+	mainboard_fill_rcomp_strength_data(&mem_cfg->RcompTarget);
+
+	mem_cfg->DqPinsInterleaved = TRUE;
+	mem_cfg->MemorySpdDataLen = blk.len;
+	mem_cfg->MemorySpdPtr00 = (uintptr_t)blk.spd_array[0];
+	mem_cfg->MemorySpdPtr10 = (uintptr_t)blk.spd_array[1];
+}
diff --git a/src/mainboard/clevo/kbl-u/variants/n13xwu/board_info.txt b/src/mainboard/clevo/kbl-u/variants/n13xwu/board_info.txt
new file mode 100644
index 0000000000..30f8ce6e3f
--- /dev/null
+++ b/src/mainboard/clevo/kbl-u/variants/n13xwu/board_info.txt
@@ -0,0 +1 @@
+Board name: N130WU / N131WU
diff --git a/src/mainboard/clevo/kbl-u/variants/n13xwu/data.vbt b/src/mainboard/clevo/kbl-u/variants/n13xwu/data.vbt
new file mode 100644
index 0000000000..f88aef4c04
--- /dev/null
+++ b/src/mainboard/clevo/kbl-u/variants/n13xwu/data.vbt
diff --git a/src/mainboard/clevo/kbl-u/variants/n13xwu/devicetree.cb b/src/mainboard/clevo/kbl-u/variants/n13xwu/devicetree.cb
new file mode 100644
index 0000000000..55c5a69b52
--- /dev/null
+++ b/src/mainboard/clevo/kbl-u/variants/n13xwu/devicetree.cb
@@ -0,0 +1,166 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
+chip soc/intel/skylake
+	register "gpu_pp_up_delay_ms"		  = "200"	# T3
+	register "gpu_pp_down_delay_ms"		  = "  0"	# T10
+	register "gpu_pp_cycle_delay_ms"	  = "500"	# T12
+	register "gpu_pp_backlight_on_delay_ms"	  = " 50"	# T7
+	register "gpu_pp_backlight_off_delay_ms"  = "  0"	# T9
+
+	register "gpu_pch_backlight_pwm_hz"	  = "200"
+
+	# IGD Displays
+	register "gfx" = "GMA_STATIC_DISPLAYS(0)"
+
+	# FSP Configuration
+	register "SkipExtGfxScan" = "1"
+	register "SaGv" = "SaGv_Enabled"
+	register "eist_enable" = "1"
+
+	register "PmConfigSlpS3MinAssert" = "2"		# 50ms
+	register "PmConfigSlpS4MinAssert" = "1"		# 1s
+	register "PmConfigSlpSusMinAssert" = "3"	# 500ms
+	register "PmConfigSlpAMinAssert" = "3"		# 2s
+
+	# Send an extra VR mailbox command for the PS4 exit issue
+	register "SendVrMbxCmd" = "2"
+
+	register "power_limits_config" = "{
+		.tdp_pl1_override = 20,
+		.tdp_pl2_override = 30,
+	}"
+
+	register "common_soc_config" = "{
+		.chipset_lockdown = CHIPSET_LOCKDOWN_COREBOOT,
+	}"
+
+	register "SerialIoDevMode" = "{
+		[PchSerialIoIndexUart2] = PchSerialIoSkipInit, // LPSS UART
+	}"
+
+	device cpu_cluster 0 on
+		device lapic 0 on end
+	end
+	device domain 0 on
+		subsystemid 0x1558 0x1313 inherit
+		device pci 00.0 on	end # Host Bridge
+		device pci 02.0 on	end # Integrated Graphics Device
+		device pci 04.0 on	end # SA thermal subsystem
+		device pci 05.0 off	end # Imaging Unit
+		device pci 08.0 on	end # Gaussian Mixture Model
+		device pci 13.0 off	end # Sensor Hub
+		device pci 14.0 on	    # USB xHCI
+			register "SsicPortEnable" = "0"
+			# USB2
+			register "usb2_ports[0]" = "USB2_PORT_MID(OC_SKIP)"	# Type-A, right
+			register "usb2_ports[1]" = "USB2_PORT_FLEX(OC_SKIP)"	# 3G / LTE
+			register "usb2_ports[2]" = "USB2_PORT_TYPE_C(OC_SKIP)"	# Type-C, right
+			register "usb2_ports[3]" = "USB2_PORT_FLEX(OC_SKIP)"	# Camera
+			register "usb2_ports[4]" = "USB2_PORT_FLEX(OC_SKIP)"	# Bluetooth
+			register "usb2_ports[6]" = "USB2_PORT_FLEX(OC_SKIP)"	# Type-A, left
+			register "usb2_ports[7]" = "USB2_PORT_TYPE_C(OC_SKIP)"	# Type-C, right
+			# USB3
+			register "usb3_ports[0]" = "USB3_PORT_DEFAULT(OC_SKIP)" # Type-A, right
+			register "usb3_ports[1]" = "USB3_PORT_DEFAULT(OC_SKIP)"	# 4G
+			register "usb3_ports[2]" = "USB3_PORT_DEFAULT(OC_SKIP)"	# Type C, right
+			register "usb3_ports[3]" = "USB3_PORT_DEFAULT(OC_SKIP)"	# Type-A, left
+		end
+		device pci 14.1 off	end # USB xDCI (OTG)
+		device pci 14.2 on	end # Thermal Subsystem
+		device pci 14.3 off	end # Camera
+		device pci 15.0 off	end # I2C0
+		device pci 15.1 off	end # I2C1
+		device pci 15.2 off	end # I2C2
+		device pci 15.3 off	end # I2C3
+		device pci 16.0 on	    # Management Engine Interface 1
+			register "HeciEnabled" = "1"
+		end
+		device pci 16.1 off	end # Management Engine Interface 2
+		device pci 16.2 off	end # Management Engine IDE-R
+		device pci 16.3 off	end # Management Engine KT Redirection
+		device pci 16.4 off	end # Management Engine Interface 3
+		device pci 17.0	on	    # SATA
+			register "SataMode" = "KBLFSP_SATA_MODE_AHCI"
+			register "SataSalpSupport" = "0"
+			# Ports
+			register "SataPortsEnable[0]" = "1"
+			register "SataPortsEnable[2]" = "1"
+			register "SataPortsDevSlp[2]" = "1"
+		end
+		device pci 19.0 on	end # UART 2
+		device pci 19.1 off	end # I2C5
+		device pci 19.2 off	end # I2C4
+		device pci 1c.0 on	    # PCI Express Port 1
+			device pci 00.0 on end # x4 TBT
+			register "PcieRpEnable[0]" = "1"
+			register "PcieRpClkReqSupport[0]" = "1"
+			register "PcieRpClkReqNumber[0]" = "4"
+			register "PcieRpClkSrcNumber[0]" = "4"
+			register "PcieRpHotPlug[0]" = "1"
+			register "PcieRpLtrEnable[0]" = "1"
+			smbios_slot_desc "SlotTypePciExpressGen3X4" "SlotLengthOther" "Thunderbolt/Type-C" "SlotDataBusWidth4X"
+		end
+		device pci 1c.1 off	end # PCI Express Port 2
+		device pci 1c.2 off	end # PCI Express Port 3
+		device pci 1c.3 off	end # PCI Express Port 4
+		device pci 1c.4 on	    # PCI Express Port 5
+			device pci 00.0 on end # x1 LAN
+			register "PcieRpEnable[4]" = "1"
+			register "PcieRpClkReqSupport[4]" = "1"
+			register "PcieRpClkReqNumber[4]" = "3"
+			register "PcieRpClkSrcNumber[4]" = "3"
+			register "PcieRpLtrEnable[4]" = "1"
+		end
+		device pci 1c.5 on	    # PCI Express Port 6
+			device pci 00.0 on end # x1 WLAN
+			register "PcieRpEnable[5]" = "1"
+			register "PcieRpClkReqSupport[5]" = "1"
+			register "PcieRpClkReqNumber[5]" = "2"
+			register "PcieRpClkSrcNumber[5]" = "2"
+			register "PcieRpLtrEnable[5]" = "1"
+			smbios_slot_desc "SlotTypeM2Socket1_SD" "SlotLengthOther" "M.2/A/E 2230 (J_WLAN1)" "SlotDataBusWidth1X"
+		end
+		device pci 1c.6 off	end # PCI Express Port 7
+		device pci 1c.7 off	end # PCI Express Port 8
+		device pci 1d.0 on	    # PCI Express Port 9
+			device pci 00.0 on end # x4 M.2/M (J_SSD1)
+			register "PcieRpEnable[8]" = "1"
+			register "PcieRpClkReqSupport[8]" = "1"
+			register "PcieRpClkReqNumber[8]" = "5"
+			register "PcieRpClkSrcNumber[8]" = "5"
+			register "PcieRpLtrEnable[8]" = "1"
+			smbios_slot_desc "SlotTypeM2Socket3" "SlotLengthOther" "M.2/M 2280 (J_SSD1)" "SlotDataBusWidth4X"
+		end
+		device pci 1d.1 off	end # PCI Express Port 10
+		device pci 1d.2 off	end # PCI Express Port 11
+		device pci 1d.3 off	end # PCI Express Port 12
+		device pci 1e.0 off	end # UART 0
+		device pci 1e.1	off	end # UART 1
+		device pci 1e.2 off	end # GSPI 0
+		device pci 1e.3 off	end # GSPI 1
+		device pci 1e.4 off	end # eMMC
+		device pci 1e.5 off	end # SDIO
+		device pci 1e.6 off	end # SDXC
+		device pci 1f.0 on	    # LPC Interface
+			register "gen1_dec" = "0x000c0681"
+			register "gen2_dec" = "0x000c1641"
+			register "gen3_dec" = "0x000c0081"
+			register "gen4_dec" = "0x00040069"
+			register "serirq_mode" = "SERIRQ_CONTINUOUS"
+			chip drivers/pc80/tpm
+				device pnp 0c31.0 on end
+			end
+		end
+		device pci 1f.1 hidden	end # P2SB
+		device pci 1f.2 on	    # Power Management Controller
+			register "gpe0_dw0" = "GPP_C"
+			register "gpe0_dw1" = "GPP_D"
+			register "gpe0_dw2" = "GPP_E"
+		end
+		device pci 1f.3 on	end # Intel HDA
+		device pci 1f.4 on	end # SMBus
+		device pci 1f.5 on	end # PCH SPI
+		device pci 1f.6 off	end # GbE
+		device pci 1f.7 off	end # Trace Hub
+	end
+end
diff --git a/src/mainboard/clevo/kbl-u/variants/n13xwu/fmds/vboot-ro.fmd b/src/mainboard/clevo/kbl-u/variants/n13xwu/fmds/vboot-ro.fmd
new file mode 100644
index 0000000000..f53cdf4e47
--- /dev/null
+++ b/src/mainboard/clevo/kbl-u/variants/n13xwu/fmds/vboot-ro.fmd
@@ -0,0 +1,32 @@
+FLASH 8M {
+	SI_ALL@0x0 0x200000 {
+		SI_DESC@0x0 0x1000
+		SI_ME@0x1000 0x1ff000
+	}
+	SI_BIOS@0x200000 0x600000 {
+		MISC_RW@0x0 0x2d000 {
+			UNIFIED_MRC_CACHE@0x0 0x21000 {
+				RECOVERY_MRC_CACHE@0x0 0x10000
+				RW_MRC_CACHE@0x10000 0x10000
+				RW_VAR_MRC_CACHE@0x20000 0x1000
+			}
+			RW_SHARED@0x21000 0x4000 {
+				SHARED_DATA@0x0 0x2000
+				VBLOCK_DEV@0x2000 0x2000
+			}
+			RW_VPD(PRESERVE)@0x25000 0x2000
+			RW_NVRAM(PRESERVE)@0x27000 0x5000
+			FPF_STATUS@0x2c000 0x1000
+		}
+		WP_RO@0x2d000 0x5d3000 {
+			FMAP@0x0 0x800
+			RO_VPD(PRESERVE)@0x800 0x4000
+			RO_SECTION@0x4800 0x5ce800 {
+				RO_FRID@0x0 0x40
+				RO_FRID_PAD@0x40 0x7c0
+				GBB@0x800 0x40000
+				COREBOOT(CBFS)@0x40800 0x58e000
+			}
+		}
+	}
+}
diff --git a/src/mainboard/clevo/kbl-u/variants/n13xwu/gma-mainboard.ads b/src/mainboard/clevo/kbl-u/variants/n13xwu/gma-mainboard.ads
new file mode 100644
index 0000000000..38abb7aae9
--- /dev/null
+++ b/src/mainboard/clevo/kbl-u/variants/n13xwu/gma-mainboard.ads
@@ -0,0 +1,21 @@
+-- SPDX-License-Identifier: GPL-2.0-or-later
+
+with HW.GFX.GMA;
+with HW.GFX.GMA.Display_Probing;
+
+use HW.GFX.GMA;
+use HW.GFX.GMA.Display_Probing;
+
+private package GMA.Mainboard is
+
+   ports : constant Port_List :=
+     (eDP,
+      DP1,
+      DP2,
+      DP3,
+      HDMI1,
+      HDMI2,
+      HDMI3,
+      others => Disabled);
+
+end GMA.Mainboard;
diff --git a/src/mainboard/clevo/kbl-u/variants/n13xwu/gpio.c b/src/mainboard/clevo/kbl-u/variants/n13xwu/gpio.c
new file mode 100644
index 0000000000..e7aadcccfc
--- /dev/null
+++ b/src/mainboard/clevo/kbl-u/variants/n13xwu/gpio.c
@@ -0,0 +1,503 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <mainboard/gpio.h>
+#include <soc/gpio.h>
+
+static const struct pad_config gpio_table[] = {
+	// RCIN#
+	_PAD_CFG_STRUCT(GPP_A0,		0x44000502,	0x0),
+
+	// LAD0
+	_PAD_CFG_STRUCT(GPP_A1,		0x44000402,	0x0),
+
+	// LAD1
+	_PAD_CFG_STRUCT(GPP_A2,		0x44000402,	0x0),
+
+	// LAD2
+	_PAD_CFG_STRUCT(GPP_A3,		0x44000402,	0x0),
+
+	// LAD3
+	_PAD_CFG_STRUCT(GPP_A4,		0x44000402,	0x0),
+
+	// LFRAME#
+	_PAD_CFG_STRUCT(GPP_A5,		0x44000600,	0x0),
+
+	// SERIRQ
+	_PAD_CFG_STRUCT(GPP_A6,		0x44000402,	0x0),
+
+	// PIRQA#
+	_PAD_CFG_STRUCT(GPP_A7,		0x44000102,	0x0),
+
+	// CLKRUN#
+	_PAD_CFG_STRUCT(GPP_A8,		0x44000700,	0x0),
+
+	// CLKOUT_LPC0
+	_PAD_CFG_STRUCT(GPP_A9,		0x44000600,	0x0),
+
+	// CLKOUT_LPC1
+	_PAD_CFG_STRUCT(GPP_A10,	0x44000600,	0x1000),
+
+	// PME#
+	_PAD_CFG_STRUCT(GPP_A11,	0x44000200,	0x0),
+
+	// BM_BUSY#
+	_PAD_CFG_STRUCT(GPP_A12,	0x44000200,	0x0),
+
+	// SUSWARN#/SUSPWRDNACK
+	_PAD_CFG_STRUCT(GPP_A13,	0x44000200,	0x0),
+
+	// SUS_STAT#/ESPI_RESET#
+	_PAD_CFG_STRUCT(GPP_A14,	0x44000600,	0x0),
+
+	// SUS_ACK#
+	_PAD_CFG_STRUCT(GPP_A15,	0x44000502,	0x0),
+
+	// SD_1P8_SEL
+	_PAD_CFG_STRUCT(GPP_A16,	0x44000200,	0x0),
+
+	// SD_PWR_EN#
+	_PAD_CFG_STRUCT(GPP_A17,	0x44000200,	0x0),
+
+	// ISH_GP0
+	_PAD_CFG_STRUCT(GPP_A18,	0x44000201,	0x0),
+
+	// ISH_GP1
+	_PAD_CFG_STRUCT(GPP_A19,	0x44000603,	0x0),
+
+	// ISH_GP2
+	_PAD_CFG_STRUCT(GPP_A20,	0x44000200,	0x0),
+
+	// ISH_GP3
+	_PAD_CFG_STRUCT(GPP_A21,	0x84000200,	0x1000),
+
+	// ISH_GP4
+	_PAD_CFG_STRUCT(GPP_A22,	0x4000200,	0x0),
+
+	// ISH_GP5
+	_PAD_CFG_STRUCT(GPP_A23,	0x4000200,	0x0),
+
+	// CORE_VID0
+	_PAD_CFG_STRUCT(GPP_B0,		0x44000700,	0x0),
+
+	// CORE_VID1
+	_PAD_CFG_STRUCT(GPP_B1,		0x44000700,	0x0),
+
+	// VRALERT#
+	_PAD_CFG_STRUCT(GPP_B2,		0x44000200,	0x0),
+
+	// CPU_GP2
+	_PAD_CFG_STRUCT(GPP_B3,		0x44000200,	0x0),
+
+	// CPU_GP3
+	_PAD_CFG_STRUCT(GPP_B4,		0x44000200,	0x0),
+
+	// SRCCLKREQ0#
+	_PAD_CFG_STRUCT(GPP_B5,		0x44000200,	0x0),
+
+	// SRCCLKREQ1#
+	_PAD_CFG_STRUCT(GPP_B6,		0x44000200,	0x0),
+
+	// SRCCLKREQ2#
+	_PAD_CFG_STRUCT(GPP_B7,		0x44000700,	0x0),
+
+	// SRCCLKREQ3#
+	_PAD_CFG_STRUCT(GPP_B8,		0x44000700,	0x0),
+
+	// SRCCLKREQ4#
+	_PAD_CFG_STRUCT(GPP_B9,		0x44000702,	0x0),
+
+	// SRCCLKREQ5#
+	_PAD_CFG_STRUCT(GPP_B10,	0x44000702,	0x0),
+
+	// EXT_PWR_GATE#
+	_PAD_CFG_STRUCT(GPP_B11,	0x44000700,	0x0),
+
+	// SLP_S0#
+	_PAD_CFG_STRUCT(GPP_B12,	0x44000200,	0x0),
+
+	// PLTRST#
+	_PAD_CFG_STRUCT(GPP_B13,	0x44000700,	0x0),
+
+	// SPKR
+	_PAD_CFG_STRUCT(GPP_B14,	0x44000600,	0x1000),
+
+	// GSPI0_CS#
+	_PAD_CFG_STRUCT(GPP_B15,	0x44000200,	0x0),
+
+	// GSPI0_CLK
+	_PAD_CFG_STRUCT(GPP_B16,	0x44000200,	0x0),
+
+	// GSPI0_MISO
+	_PAD_CFG_STRUCT(GPP_B17,	0x44000200,	0x0),
+
+	// GSPI0_MOSI
+	_PAD_CFG_STRUCT(GPP_B18,	0x44000600,	0x3000),
+
+	// GSPI1_CS#
+	_PAD_CFG_STRUCT(GPP_B19,	0x44000200,	0x0),
+
+	// GSPI1_CLK
+	_PAD_CFG_STRUCT(GPP_B20,	0x44000200,	0x0),
+
+	// GSPI1_MISO
+	_PAD_CFG_STRUCT(GPP_B21,	0x44000200,	0x0),
+
+	// GSPI1_MOSI
+	_PAD_CFG_STRUCT(GPP_B22,	0x44000700,	0x1000),
+
+	// SML1ALERT#/PCHHOT#
+	_PAD_CFG_STRUCT(GPP_B23,	0x44000200,	0x0),
+
+	// SMBCLK
+	_PAD_CFG_STRUCT(GPP_C0,		0x44000702,	0x0),
+
+	// SMBDATA
+	_PAD_CFG_STRUCT(GPP_C1,		0x44000702,	0x1000),
+
+	// SMBALERT#
+	_PAD_CFG_STRUCT(GPP_C2,		0x44000201,	0x1000),
+
+	// SML0CLK
+	_PAD_CFG_STRUCT(GPP_C3,		0x44000200,	0x0),
+
+	// SML0DATA
+	_PAD_CFG_STRUCT(GPP_C4,		0x44000200,	0x0),
+
+	// SML0ALERT#
+	_PAD_CFG_STRUCT(GPP_C5,		0x44000200,	0x0),
+
+	// SML1CLK
+//	_PAD_CFG_STRUCT(GPP_C6,		0xffffffff,	0xffffff00),
+
+	// SML1DATA
+//	_PAD_CFG_STRUCT(GPP_C7,		0xffffffff,	0xffffff00),
+
+	// UART0_RXD
+	_PAD_CFG_STRUCT(GPP_C8,		0x44000700,	0x0),
+
+	// UART0_TXD
+	_PAD_CFG_STRUCT(GPP_C9,		0x44000700,	0x0),
+
+	// UART0_RTS#
+	_PAD_CFG_STRUCT(GPP_C10,	0x44000700,	0x0),
+
+	// UART0_CTS#
+	_PAD_CFG_STRUCT(GPP_C11,	0x44000700,	0x0),
+
+	// UART1_RXD
+	_PAD_CFG_STRUCT(GPP_C12,	0x44000702,	0x0),
+
+	// UART1_TXD
+	_PAD_CFG_STRUCT(GPP_C13,	0x82880102,	0x0),
+
+	// UART1_RTS#
+	_PAD_CFG_STRUCT(GPP_C14,	0x44000700,	0x0),
+
+	// UART1_CTS#
+	_PAD_CFG_STRUCT(GPP_C15,	0x44000700,	0x0),
+
+	// I2C0_SDA
+	_PAD_CFG_STRUCT(GPP_C16,	0x44000200,	0x0),
+
+	// I2C0_SCL
+	_PAD_CFG_STRUCT(GPP_C17,	0x44000200,	0x0),
+
+	// I2C1_SDA
+	_PAD_CFG_STRUCT(GPP_C18,	0x44000200,	0x0),
+
+	// I2C1_SCL
+	_PAD_CFG_STRUCT(GPP_C19,	0x40880102,	0x0),
+
+	// UART2_RXD
+	_PAD_CFG_STRUCT(GPP_C20,	0x44000702,	0x0),
+
+	// UART2_TXD
+	_PAD_CFG_STRUCT(GPP_C21,	0x44000700,	0x0),
+
+	// UART2_RTS#
+	_PAD_CFG_STRUCT(GPP_C22,	0x44000700,	0x0),
+
+	// UART2_CTS#
+	_PAD_CFG_STRUCT(GPP_C23,	0x44000700,	0x0),
+
+	// SPI1_CS#
+	_PAD_CFG_STRUCT(GPP_D0,		0x44000200,	0x0),
+
+	// SPI1_CLK
+	_PAD_CFG_STRUCT(GPP_D1,		0x44000200,	0x0),
+
+	// SPI1_MISO
+	_PAD_CFG_STRUCT(GPP_D2,		0x44000200,	0x0),
+
+	// SPI1_MOSI
+	_PAD_CFG_STRUCT(GPP_D3,		0x44000200,	0x0),
+
+	// FLASHTRIG
+	_PAD_CFG_STRUCT(GPP_D4,		0x44000200,	0x0),
+
+	// ISH_I2C0_SDA
+	_PAD_CFG_STRUCT(GPP_D5,		0x44000700,	0x0),
+
+	// ISH_I2C0_SCL
+	_PAD_CFG_STRUCT(GPP_D6,		0x44000700,	0x0),
+
+	// ISH_I2C1_SDA
+	_PAD_CFG_STRUCT(GPP_D7,		0x44000700,	0x0),
+
+	// ISH_I2C1_SCL
+	_PAD_CFG_STRUCT(GPP_D8,		0x44000201,	0x0),
+
+	// GPIO
+	_PAD_CFG_STRUCT(GPP_D9,		0x44000200,	0x0),
+
+	// GPIO
+	_PAD_CFG_STRUCT(GPP_D10,	0x44000200,	0x0),
+
+	// GPIO
+	_PAD_CFG_STRUCT(GPP_D11,	0x44000200,	0x0),
+
+	// GPIO
+	_PAD_CFG_STRUCT(GPP_D12,	0x44000200,	0x0),
+
+	// ISH_UART0_RXD
+	_PAD_CFG_STRUCT(GPP_D13,	0x44000200,	0x0),
+
+	// ISH_UART0_TXD
+	_PAD_CFG_STRUCT(GPP_D14,	0x44000200,	0x0),
+
+	// ISH_UART0_RTS#
+	_PAD_CFG_STRUCT(GPP_D15,	0x44000700,	0x0),
+
+	// ISH_UART0_CTS#
+	_PAD_CFG_STRUCT(GPP_D16,	0x44000700,	0x0),
+
+	// DMIC_CLK1
+	_PAD_CFG_STRUCT(GPP_D17,	0x44000700,	0x0),
+
+	// DMIC_DATA1
+	_PAD_CFG_STRUCT(GPP_D18,	0x44000700,	0x0),
+
+	// DMIC_CLK0
+	_PAD_CFG_STRUCT(GPP_D19,	0x44000700,	0x0),
+
+	// DMIC_DATA0
+	_PAD_CFG_STRUCT(GPP_D20,	0x44000700,	0x0),
+
+	// SPI1_IO2
+	_PAD_CFG_STRUCT(GPP_D21,	0x44000102,	0x0),
+
+	// SPI1_IO3
+	_PAD_CFG_STRUCT(GPP_D22,	0x44000700,	0x0),
+
+	// I2S_MCLK
+	_PAD_CFG_STRUCT(GPP_D23,	0x44000700,	0x0),
+
+	// SATAXPCIE0/SATAGP0
+	_PAD_CFG_STRUCT(GPP_E0,		0x42100100,	0x1000),
+
+	// SATAXPCIE1/SATAGP1
+	_PAD_CFG_STRUCT(GPP_E1,		0x44000702,	0x0),
+
+	// SATAXPCIE2/SATAGP2
+	_PAD_CFG_STRUCT(GPP_E2,		0x44000502,	0x0),
+
+	// CPU_GP0
+	_PAD_CFG_STRUCT(GPP_E3,		0x40000000,	0x0),
+
+	// DEVSLP0
+	_PAD_CFG_STRUCT(GPP_E4,		0x4000700,	0x0),
+
+	// DEVSLP1
+	_PAD_CFG_STRUCT(GPP_E5,		0x4000700,	0x0),
+
+	// DEVSLP2
+	_PAD_CFG_STRUCT(GPP_E6,		0x44000200,	0x0),
+
+	// CPU_GP1
+	_PAD_CFG_STRUCT(GPP_E7,		0x44000100,	0x0),
+
+	// SATALED#
+	_PAD_CFG_STRUCT(GPP_E8,		0x44000700,	0x0),
+
+	// USB2_OC0#
+	_PAD_CFG_STRUCT(GPP_E9,		0x44000200,	0x0),
+
+	// USB2_OC1#
+	_PAD_CFG_STRUCT(GPP_E10,	0x44000200,	0x0),
+
+	// USB2_OC2#
+	_PAD_CFG_STRUCT(GPP_E11,	0x44000200,	0x0),
+
+	// USB2_OC3#
+	_PAD_CFG_STRUCT(GPP_E12,	0x44000200,	0x0),
+
+	// DDPB_HPD0
+	_PAD_CFG_STRUCT(GPP_E13,	0x44000700,	0x0),
+
+	// DDPC_HPD1
+	_PAD_CFG_STRUCT(GPP_E14,	0x44000700,	0x0),
+
+	// DDPD_HPD2
+	_PAD_CFG_STRUCT(GPP_E15,	0x42840102,	0x0),
+
+	// DDPE_HPD3
+	_PAD_CFG_STRUCT(GPP_E16,	0x80880102,	0x0),
+
+	// EDP_HPD
+	_PAD_CFG_STRUCT(GPP_E17,	0x44000702,	0x0),
+
+	// DDPB_CTRLCLK
+	_PAD_CFG_STRUCT(GPP_E18,	0x44000700,	0x0),
+
+	// DDPB_CTRLDATA
+	_PAD_CFG_STRUCT(GPP_E19,	0x44000700,	0x1000),
+
+	// DDPC_CTRLCLK
+	_PAD_CFG_STRUCT(GPP_E20,	0x44000702,	0x0),
+
+	// DDPC_CTRLDATA
+	_PAD_CFG_STRUCT(GPP_E21,	0x44000702,	0x1000),
+
+	// DDPD_CTRLCLK
+	_PAD_CFG_STRUCT(GPP_E22,	0x40100000,	0x0),
+
+	// DDPD_CTRLDATA
+	_PAD_CFG_STRUCT(GPP_E23,	0x44000201,	0x1000),
+
+	// BATLOW#
+	_PAD_CFG_STRUCT(GPD0,		0x4000702,	0x0),
+
+	// LANPHYPC
+	_PAD_CFG_STRUCT(GPD1,		0x4000700,	0x0),
+
+	// LAN_WAKE#
+	_PAD_CFG_STRUCT(GPD2,		0x880502,	0x0),
+
+	// PWRBTN#
+	_PAD_CFG_STRUCT(GPD3,		0x4000702,	0x3000),
+
+	// SLP_S3#
+	_PAD_CFG_STRUCT(GPD4,		0x4000700,	0x0),
+
+	// SLP_S4#
+	_PAD_CFG_STRUCT(GPD5,		0x4000700,	0x0),
+
+	// SLP_A#
+	_PAD_CFG_STRUCT(GPD6,		0x4000700,	0x0),
+
+	// RSVD
+	_PAD_CFG_STRUCT(GPD7,		0x4000301,	0x0),
+
+	// SUSCLK
+	_PAD_CFG_STRUCT(GPD8,		0x4000700,	0x0),
+
+	// SLP_WLAN#
+	_PAD_CFG_STRUCT(GPD9,		0x4000700,	0x0),
+
+	// SLP_S5#
+	_PAD_CFG_STRUCT(GPD10,		0x4000700,	0x0),
+
+	// LANPHYPC
+	_PAD_CFG_STRUCT(GPD11,		0x4000500,	0x0),
+
+	// I2S2_SCLK
+	_PAD_CFG_STRUCT(GPP_F0,		0x44000702,	0x0),
+
+	// I2S2_SFRM
+	_PAD_CFG_STRUCT(GPP_F1,		0x44000702,	0x0),
+
+	// I2S2_TXD
+	_PAD_CFG_STRUCT(GPP_F2,		0x44000700,	0x0),
+
+	// I2S2_RXD
+	_PAD_CFG_STRUCT(GPP_F3,		0x44000702,	0x0),
+
+	// I2C2_SDA
+	_PAD_CFG_STRUCT(GPP_F4,		0x44000702,	0x2000000),
+
+	// I2C2_SCL
+	_PAD_CFG_STRUCT(GPP_F5,		0x44000702,	0x2000000),
+
+	// I2C3_SDA
+	_PAD_CFG_STRUCT(GPP_F6,		0x44000702,	0x2000000),
+
+	// I2C3_SCL
+	_PAD_CFG_STRUCT(GPP_F7,		0x44000702,	0x2000000),
+
+	// I2C4_SDA
+	_PAD_CFG_STRUCT(GPP_F8,		0x44000702,	0x2000000),
+
+	// I2C4_SCL
+	_PAD_CFG_STRUCT(GPP_F9,		0x44000702,	0x2000000),
+
+	// I2C5_SDA/ISH_I2C2_SDA
+	_PAD_CFG_STRUCT(GPP_F10,	0x44000b02,	0x2000000),
+
+	// I2C5_SCL/ISH_I2C2_SCL
+	_PAD_CFG_STRUCT(GPP_F11,	0x44000b02,	0x2000000),
+
+	// EMMC_CMD
+	_PAD_CFG_STRUCT(GPP_F12,	0x44000702,	0x0),
+
+	// EMMC_DATA0
+	_PAD_CFG_STRUCT(GPP_F13,	0x44000702,	0x0),
+
+	// EMMC_DATA1
+	_PAD_CFG_STRUCT(GPP_F14,	0x44000702,	0x0),
+
+	// EMMC_DATA2
+	_PAD_CFG_STRUCT(GPP_F15,	0x44000702,	0x0),
+
+	// EMMC_DATA3
+	_PAD_CFG_STRUCT(GPP_F16,	0x44000702,	0x0),
+
+	// EMMC_DATA4
+	_PAD_CFG_STRUCT(GPP_F17,	0x44000702,	0x0),
+
+	// EMMC_DATA5
+	_PAD_CFG_STRUCT(GPP_F18,	0x44000702,	0x0),
+
+	// EMMC_DATA6
+	_PAD_CFG_STRUCT(GPP_F19,	0x44000702,	0x0),
+
+	// EMMC_DATA7
+	_PAD_CFG_STRUCT(GPP_F20,	0x44000702,	0x0),
+
+	// EMMC_RCLK
+	_PAD_CFG_STRUCT(GPP_F21,	0x44000702,	0x0),
+
+	// EMMC_CLK
+	_PAD_CFG_STRUCT(GPP_F22,	0x44000700,	0x0),
+
+	// GPIO
+	_PAD_CFG_STRUCT(GPP_F23,	0x40100100,	0x0),
+
+	// SD_CMD
+	_PAD_CFG_STRUCT(GPP_G0,		0x44000700,	0x0),
+
+	// SD_DATA0
+	_PAD_CFG_STRUCT(GPP_G1,		0x44000102,	0x0),
+
+	// SD_DATA1
+	_PAD_CFG_STRUCT(GPP_G2,		0x44000700,	0x0),
+
+	// SD_DATA2
+	_PAD_CFG_STRUCT(GPP_G3,		0x44000700,	0x0),
+
+	// SD_DATA3
+	_PAD_CFG_STRUCT(GPP_G4,		0x44000700,	0x0),
+
+	// SD_CD#
+	_PAD_CFG_STRUCT(GPP_G5,		0x44000702,	0x0),
+
+	// SD_CLK
+	_PAD_CFG_STRUCT(GPP_G6,		0x44000700,	0x0),
+
+	// SD_WP
+	_PAD_CFG_STRUCT(GPP_G7,		0x44000702,	0x0)
+};
+
+void mainboard_configure_gpios(void)
+{
+	gpio_configure_pads(gpio_table, ARRAY_SIZE(gpio_table));
+}
diff --git a/src/mainboard/clevo/kbl-u/variants/n13xwu/gpio_early.c b/src/mainboard/clevo/kbl-u/variants/n13xwu/gpio_early.c
new file mode 100644
index 0000000000..00246a42e5
--- /dev/null
+++ b/src/mainboard/clevo/kbl-u/variants/n13xwu/gpio_early.c
@@ -0,0 +1,17 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <mainboard/gpio.h>
+#include <soc/gpio.h>
+
+static const struct pad_config early_gpio_table[] = {
+	// UART2_RXD
+	_PAD_CFG_STRUCT(GPP_C20,	0x44000702,	0x0),
+
+	// UART2_TXD
+	_PAD_CFG_STRUCT(GPP_C21,	0x44000700,	0x0)
+};
+
+void mainboard_configure_gpios(void)
+{
+	gpio_configure_pads(early_gpio_table, ARRAY_SIZE(early_gpio_table));
+}
diff --git a/src/mainboard/clevo/kbl-u/variants/n13xwu/hda_verb.c b/src/mainboard/clevo/kbl-u/variants/n13xwu/hda_verb.c
new file mode 100644
index 0000000000..05bb273a74
--- /dev/null
+++ b/src/mainboard/clevo/kbl-u/variants/n13xwu/hda_verb.c
@@ -0,0 +1,34 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <device/azalia_device.h>
+
+const u32 cim_verb_data[] = {
+	/* Realtek ALC269VC */
+	0x10ec0269,
+	0x15581314,
+	11,
+	AZALIA_SUBVENDOR(0, 0x15581314),
+	AZALIA_PIN_CFG(0, 0x12, 0x90a60140),
+	AZALIA_PIN_CFG(0, 0x14, 0x90170120),
+	AZALIA_PIN_CFG(0, 0x15, 0x02211010),
+	AZALIA_PIN_CFG(0, 0x17, 0x40000000),
+	AZALIA_PIN_CFG(0, 0x18, 0x02a11030),
+	AZALIA_PIN_CFG(0, 0x19, 0x411111f0),
+	AZALIA_PIN_CFG(0, 0x1a, 0x411111f0),
+	AZALIA_PIN_CFG(0, 0x1b, 0x411111f0),
+	AZALIA_PIN_CFG(0, 0x1d, 0x40f4a205),
+	AZALIA_PIN_CFG(0, 0x1e, 0x411111f0),
+
+	/* Intel iGPU HDMI */
+	0x8086280b,
+	0x80860101,
+	4,
+	AZALIA_SUBVENDOR(2, 0x80860101),
+	AZALIA_PIN_CFG(2, 0x5, 0x18560010),
+	AZALIA_PIN_CFG(2, 0x6, 0x18560010),
+	AZALIA_PIN_CFG(2, 0x7, 0x18560010)
+};
+
+const u32 pc_beep_verbs[] = {};
+
+AZALIA_ARRAY_SIZES;