From 10e47d80cbe5bb2464931a0c6c6d5a7f7077b28e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Michael=20Niew=C3=B6hner?= <foss@mniewoehner.de>
Date: Tue, 1 Mar 2022 20:47:43 +0100
Subject: [PATCH] mb/clevo/tgl-u: add new board L14xMU
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Add new board Clevo L14xMU (TGL).

GPIOs were configured based on schematics.

Tested and working:
 - On-board RAM (M471A1G44AB0-CWE)
 - DIMM slot (tested Crucial CT16G4SFD8266.16FJ1 / MTA16ATF2G64HZ-2G6J1)
 - Graphics (GOP driver), including HDMI
 - Keyboard
 - I2C touchpad (including interrupt)
 - TPM (with interrupt on Windows, only polling on Linux [1])
 - microSD Card reader
 - both NVME ports
 - Speakers
 - Microphone
 - Camera
 - WLAN/BT (CNVi)
 - All USB2/3 ports including Type-C
 - Thunderbolt detects my work laptop in TB Control Center
   (I couldn't test anything more due to security policy.)
 - TianoCore
 - internal flashing with flashrom on vendor firmware

Note on TPM:
The vendor sets Intel PTT to default-on in newer CSME images, which
conflicts with the dTPM. Currently, there are two ways to make it work:

 1) Boot vendor firmware once to let it disable PTT via CSME firmware
    feature override.
 2) Use Intel Flash Image Tool (FIT) to set "initial power-up state" to
    disabled.

Boots fine:
 - Debian testing, unstable (Linux 5.16.14, 5.17.0-rc6)
 - Windows 10 21H2 (Build 19044.1586)

Untested:
- Thunderbolt (see above)
- Type-C DisplayPort
- S-ATA

Doesn't work:
 - TPM interrupt on Linux [1]
 - All EC related functions - EC driver is WIP
  - WLAN/BT (PCIe) - gets detected but can't be enabled
  - 3G/LTE (not powered without EC driver)
  - Fn-Keys
  - S0ix
  - UCSI
  - Fan control
  - Battery info

[1] https://lkml.org/lkml/2021/5/1/103

Change-Id: I4c4bef3827da10241e9b01e12ecc4276e131a620
Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/59548
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
---
 src/mainboard/clevo/tgl-u/Kconfig             |  63 +++++
 src/mainboard/clevo/tgl-u/Kconfig.name        |   4 +
 src/mainboard/clevo/tgl-u/Makefile.inc        |  14 +
 src/mainboard/clevo/tgl-u/board_info.txt      |   6 +
 src/mainboard/clevo/tgl-u/bootblock.c         |   9 +
 src/mainboard/clevo/tgl-u/cmos.default        |   3 +
 src/mainboard/clevo/tgl-u/cmos.layout         |  57 ++++
 src/mainboard/clevo/tgl-u/dsdt.asl            |  32 +++
 .../clevo/tgl-u/include/variant/gpio.h        |   9 +
 .../clevo/tgl-u/include/variant/ramstage.h    |   8 +
 .../clevo/tgl-u/include/variant/romstage.h    |   8 +
 src/mainboard/clevo/tgl-u/ramstage.c          |  20 ++
 src/mainboard/clevo/tgl-u/romstage.c          |   9 +
 .../spd/samsung-M471A1G44AB0-CWE.spd.hex      |  32 +++
 .../clevo/tgl-u/variants/l140mu/Makefile.inc  |   1 +
 .../tgl-u/variants/l140mu/board_info.txt      |   2 +
 .../clevo/tgl-u/variants/l140mu/data.vbt      | Bin 0 -> 8704 bytes
 .../clevo/tgl-u/variants/l140mu/devicetree.cb | 249 ++++++++++++++++++
 .../clevo/tgl-u/variants/l140mu/gpio.c        | 235 +++++++++++++++++
 .../clevo/tgl-u/variants/l140mu/gpio_early.c  |  15 ++
 .../clevo/tgl-u/variants/l140mu/hda_verb.c    |  82 ++++++
 .../clevo/tgl-u/variants/l140mu/ramstage.c    |  11 +
 .../clevo/tgl-u/variants/l140mu/romstage.c    |  19 ++
 23 files changed, 888 insertions(+)
 create mode 100644 src/mainboard/clevo/tgl-u/Kconfig
 create mode 100644 src/mainboard/clevo/tgl-u/Kconfig.name
 create mode 100644 src/mainboard/clevo/tgl-u/Makefile.inc
 create mode 100644 src/mainboard/clevo/tgl-u/board_info.txt
 create mode 100644 src/mainboard/clevo/tgl-u/bootblock.c
 create mode 100644 src/mainboard/clevo/tgl-u/cmos.default
 create mode 100644 src/mainboard/clevo/tgl-u/cmos.layout
 create mode 100644 src/mainboard/clevo/tgl-u/dsdt.asl
 create mode 100644 src/mainboard/clevo/tgl-u/include/variant/gpio.h
 create mode 100644 src/mainboard/clevo/tgl-u/include/variant/ramstage.h
 create mode 100644 src/mainboard/clevo/tgl-u/include/variant/romstage.h
 create mode 100644 src/mainboard/clevo/tgl-u/ramstage.c
 create mode 100644 src/mainboard/clevo/tgl-u/romstage.c
 create mode 100644 src/mainboard/clevo/tgl-u/spd/samsung-M471A1G44AB0-CWE.spd.hex
 create mode 100644 src/mainboard/clevo/tgl-u/variants/l140mu/Makefile.inc
 create mode 100644 src/mainboard/clevo/tgl-u/variants/l140mu/board_info.txt
 create mode 100644 src/mainboard/clevo/tgl-u/variants/l140mu/data.vbt
 create mode 100644 src/mainboard/clevo/tgl-u/variants/l140mu/devicetree.cb
 create mode 100644 src/mainboard/clevo/tgl-u/variants/l140mu/gpio.c
 create mode 100644 src/mainboard/clevo/tgl-u/variants/l140mu/gpio_early.c
 create mode 100644 src/mainboard/clevo/tgl-u/variants/l140mu/hda_verb.c
 create mode 100644 src/mainboard/clevo/tgl-u/variants/l140mu/ramstage.c
 create mode 100644 src/mainboard/clevo/tgl-u/variants/l140mu/romstage.c

diff --git a/src/mainboard/clevo/tgl-u/Kconfig b/src/mainboard/clevo/tgl-u/Kconfig
new file mode 100644
index 0000000000..a97d3d849b
--- /dev/null
+++ b/src/mainboard/clevo/tgl-u/Kconfig
@@ -0,0 +1,63 @@
+config BOARD_CLEVO_TGLU_COMMON
+	def_bool n
+	select BOARD_ROMSIZE_KB_16384
+	select DRIVERS_I2C_HID
+	select DRIVERS_INTEL_PMC
+	select DRIVERS_INTEL_USB4_RETIMER
+	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 SOC_INTEL_COMMON_BLOCK_HDA_VERB
+	select SOC_INTEL_ENABLE_USB4_PCIE_RESOURCES
+	select SOC_INTEL_TIGERLAKE
+	select SPD_READ_BY_WORD
+	select SYSTEM_TYPE_LAPTOP
+
+config BOARD_CLEVO_L140MU
+	select BOARD_CLEVO_TGLU_COMMON
+	select HAVE_SPD_IN_CBFS
+
+if BOARD_CLEVO_TGLU_COMMON
+
+config MAINBOARD_DIR
+	default "clevo/tgl-u"
+
+config VARIANT_DIR
+	default "l140mu" if BOARD_CLEVO_L140MU
+
+config MAINBOARD_PART_NUMBER
+	default "L140MU" if BOARD_CLEVO_L140MU
+
+config MAINBOARD_VERSION
+	default "2.2A" if BOARD_CLEVO_L140MU
+
+config DEVICETREE
+	default "variants/\$(CONFIG_VARIANT_DIR)/devicetree.cb"
+
+config CBFS_SIZE
+	default 0xb00000 if BOARD_CLEVO_L140MU
+
+config CONSOLE_POST
+	default y
+
+config UART_FOR_CONSOLE
+	default 2
+
+config TPM_PIRQ
+	default 0x77 if BOARD_CLEVO_L140MU # GPP_C9_IRQ
+
+config POST_DEVICE
+	default n
+
+config SEABIOS_PS2_TIMEOUT
+	default 500
+
+config USE_PM_ACPI_TIMER
+	default n
+
+endif
diff --git a/src/mainboard/clevo/tgl-u/Kconfig.name b/src/mainboard/clevo/tgl-u/Kconfig.name
new file mode 100644
index 0000000000..97d2874747
--- /dev/null
+++ b/src/mainboard/clevo/tgl-u/Kconfig.name
@@ -0,0 +1,4 @@
+comment "Tiger Lake U"
+
+config BOARD_CLEVO_L140MU
+	bool "L140MU / L141MU / L142MU"
diff --git a/src/mainboard/clevo/tgl-u/Makefile.inc b/src/mainboard/clevo/tgl-u/Makefile.inc
new file mode 100644
index 0000000000..2909300f64
--- /dev/null
+++ b/src/mainboard/clevo/tgl-u/Makefile.inc
@@ -0,0 +1,14 @@
+CPPFLAGS_common += -I$(src)/mainboard/$(MAINBOARDDIR)/include
+
+bootblock-y += bootblock.c
+bootblock-y += variants/$(VARIANT_DIR)/gpio_early.c
+
+romstage-y += romstage.c
+romstage-y += variants/$(VARIANT_DIR)/romstage.c
+
+ramstage-y += ramstage.c
+ramstage-y += variants/$(VARIANT_DIR)/ramstage.c
+ramstage-y += variants/$(VARIANT_DIR)/gpio.c
+ramstage-y += variants/$(VARIANT_DIR)/hda_verb.c
+
+subdirs-y += variants/$(VARIANT_DIR)
diff --git a/src/mainboard/clevo/tgl-u/board_info.txt b/src/mainboard/clevo/tgl-u/board_info.txt
new file mode 100644
index 0000000000..67109938da
--- /dev/null
+++ b/src/mainboard/clevo/tgl-u/board_info.txt
@@ -0,0 +1,6 @@
+Vendor name: Clevo
+Category: laptop
+ROM package: SOIC-8
+ROM protocol: SPI
+ROM socketed: n
+Flashrom support: y
diff --git a/src/mainboard/clevo/tgl-u/bootblock.c b/src/mainboard/clevo/tgl-u/bootblock.c
new file mode 100644
index 0000000000..b351fbd8ef
--- /dev/null
+++ b/src/mainboard/clevo/tgl-u/bootblock.c
@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <bootblock_common.h>
+#include <variant/gpio.h>
+
+void bootblock_mainboard_early_init(void)
+{
+	variant_configure_early_gpios();
+}
diff --git a/src/mainboard/clevo/tgl-u/cmos.default b/src/mainboard/clevo/tgl-u/cmos.default
new file mode 100644
index 0000000000..f3330e5070
--- /dev/null
+++ b/src/mainboard/clevo/tgl-u/cmos.default
@@ -0,0 +1,3 @@
+boot_option=Fallback
+debug_level=Debug
+power_on_after_fail=Disable
diff --git a/src/mainboard/clevo/tgl-u/cmos.layout b/src/mainboard/clevo/tgl-u/cmos.layout
new file mode 100644
index 0000000000..4f76221f91
--- /dev/null
+++ b/src/mainboard/clevo/tgl-u/cmos.layout
@@ -0,0 +1,57 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
+# -----------------------------------------------------------------
+entries
+
+# start-bit	length	config	config-ID	name
+0		120	r	0		reserved_memory
+
+# -----------------------------------------------------------------
+# RTC_BOOT_BYTE (coreboot hardcoded)
+384		  1	e	4		boot_option
+388		  4	h	0		reboot_counter
+
+# -----------------------------------------------------------------
+# coreboot config options: console
+395		  4	e	6		debug_level
+
+# -----------------------------------------------------------------
+# coreboot config options: southbridge
+410		  2	e	7		power_on_after_fail
+
+# -----------------------------------------------------------------
+# vboot nv area
+800		128	r	0		vbnv
+
+# -----------------------------------------------------------------
+# coreboot config options: check sums
+984		 16	h	0		check_sum
+
+# -----------------------------------------------------------------
+
+enumerations
+
+#ID	value	text
+1	0	Disable
+1	1	Enable
+2	0	Enable
+2	1	Disable
+4	0	Fallback
+4	1	Normal
+6	0	Emergency
+6	1	Alert
+6	2	Critical
+6	3	Error
+6	4	Warning
+6	5	Notice
+6	6	Info
+6	7	Debug
+6	8	Spew
+7	0	Disable
+7	1	Enable
+7	2	Keep
+
+# -----------------------------------------------------------------
+checksums
+
+checksum 392 799 984
diff --git a/src/mainboard/clevo/tgl-u/dsdt.asl b/src/mainboard/clevo/tgl-u/dsdt.asl
new file mode 100644
index 0000000000..ac02fe9d6d
--- /dev/null
+++ b/src/mainboard/clevo/tgl-u/dsdt.asl
@@ -0,0 +1,32 @@
+/* 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
+)
+{
+	#include <acpi/dsdt_top.asl>
+	#include <soc/intel/common/block/acpi/acpi/platform.asl>
+	#include <soc/intel/common/block/acpi/acpi/globalnvs.asl>
+	#include <cpu/intel/common/acpi/cpu.asl>
+
+	Device (\_SB.PCI0)
+	{
+		#include <soc/intel/common/block/acpi/acpi/northbridge.asl>
+		#include <soc/intel/tigerlake/acpi/southbridge.asl>
+		#include <soc/intel/tigerlake/acpi/tcss.asl>
+		#include <drivers/intel/gma/acpi/default_brightness_levels.asl>
+	}
+
+	Scope (\_SB.PCI0.LPCB)
+	{
+		#include <drivers/pc80/pc/ps2_controller.asl>
+	}
+
+	#include <southbridge/intel/common/acpi/sleepstates.asl>
+}
diff --git a/src/mainboard/clevo/tgl-u/include/variant/gpio.h b/src/mainboard/clevo/tgl-u/include/variant/gpio.h
new file mode 100644
index 0000000000..95d576294f
--- /dev/null
+++ b/src/mainboard/clevo/tgl-u/include/variant/gpio.h
@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef VARIANT_GPIO_H
+#define VARIANT_GPIO_H
+
+void variant_configure_early_gpios(void);
+void variant_configure_gpios(void);
+
+#endif
diff --git a/src/mainboard/clevo/tgl-u/include/variant/ramstage.h b/src/mainboard/clevo/tgl-u/include/variant/ramstage.h
new file mode 100644
index 0000000000..4b5b29db0a
--- /dev/null
+++ b/src/mainboard/clevo/tgl-u/include/variant/ramstage.h
@@ -0,0 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef VARIANT_RAMSTAGE_H
+#define VARIANT_RAMSTAGE_H
+
+void variant_configure_fsps(FSP_S_CONFIG *params);
+
+#endif
diff --git a/src/mainboard/clevo/tgl-u/include/variant/romstage.h b/src/mainboard/clevo/tgl-u/include/variant/romstage.h
new file mode 100644
index 0000000000..cfcc6ab08d
--- /dev/null
+++ b/src/mainboard/clevo/tgl-u/include/variant/romstage.h
@@ -0,0 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef VARIANT_ROMSTAGE_H
+#define VARIANT_ROMSTAGE_H
+
+void variant_configure_fspm(FSPM_UPD *memupd);
+
+#endif
diff --git a/src/mainboard/clevo/tgl-u/ramstage.c b/src/mainboard/clevo/tgl-u/ramstage.c
new file mode 100644
index 0000000000..0768e515c9
--- /dev/null
+++ b/src/mainboard/clevo/tgl-u/ramstage.c
@@ -0,0 +1,20 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <device/device.h>
+#include <soc/ramstage.h>
+#include <variant/gpio.h>
+#include <variant/ramstage.h>
+
+void mainboard_silicon_init_params(FSP_S_CONFIG *params)
+{
+	variant_configure_fsps(params);
+}
+
+static void init_mainboard(void *chip_info)
+{
+	variant_configure_gpios();
+}
+
+struct chip_operations mainboard_ops = {
+	.init = init_mainboard,
+};
diff --git a/src/mainboard/clevo/tgl-u/romstage.c b/src/mainboard/clevo/tgl-u/romstage.c
new file mode 100644
index 0000000000..5ba6c5676a
--- /dev/null
+++ b/src/mainboard/clevo/tgl-u/romstage.c
@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <soc/romstage.h>
+#include <variant/romstage.h>
+
+void mainboard_memory_init_params(FSPM_UPD *memupd)
+{
+	variant_configure_fspm(memupd);
+}
diff --git a/src/mainboard/clevo/tgl-u/spd/samsung-M471A1G44AB0-CWE.spd.hex b/src/mainboard/clevo/tgl-u/spd/samsung-M471A1G44AB0-CWE.spd.hex
new file mode 100644
index 0000000000..91442caf3a
--- /dev/null
+++ b/src/mainboard/clevo/tgl-u/spd/samsung-M471A1G44AB0-CWE.spd.hex
@@ -0,0 +1,32 @@
+23 11 0C 03 46 29 00 08 00 60 00 03 02 03 00 00
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+20 08 00 05 00 F0 2B 34 28 00 78 00 14 3C 00 00
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+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+80 CE 00 00 00 00 00 00 00 4D 34 37 31 41 31 47
+34 34 41 42 30 2D 43 57 45 20 20 20 20 00 80 CE
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
diff --git a/src/mainboard/clevo/tgl-u/variants/l140mu/Makefile.inc b/src/mainboard/clevo/tgl-u/variants/l140mu/Makefile.inc
new file mode 100644
index 0000000000..10cb4fb8af
--- /dev/null
+++ b/src/mainboard/clevo/tgl-u/variants/l140mu/Makefile.inc
@@ -0,0 +1 @@
+SPD_SOURCES  = samsung-M471A1G44AB0-CWE
diff --git a/src/mainboard/clevo/tgl-u/variants/l140mu/board_info.txt b/src/mainboard/clevo/tgl-u/variants/l140mu/board_info.txt
new file mode 100644
index 0000000000..764bb688a0
--- /dev/null
+++ b/src/mainboard/clevo/tgl-u/variants/l140mu/board_info.txt
@@ -0,0 +1,2 @@
+Board name: L140MU
+Release year: 2021
diff --git a/src/mainboard/clevo/tgl-u/variants/l140mu/data.vbt b/src/mainboard/clevo/tgl-u/variants/l140mu/data.vbt
new file mode 100644
index 0000000000000000000000000000000000000000..f8c0444f234cc4f972440e237ff1d14dff443b86
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zUApJv&Q>kaT51asaG}RI;7XUhS<injnl(u3;7%&aZdS|6gThL#{@&<lbZj!6IX8AS
z{RUiE%TgBGw#j=wBKH|YPAvDW!8RQWn?%?oQH+i)OJ7x4|6!xjtEyv@psVM~(JuJ2
z7ZDL$R-cC`q~IvI4);Wyd>->3hQiN#HVM1mrV?0uB0HmKW~2D!@SmTL@xj_8al8Yk
zO#|O|KJ;yBrb6KqW*C4CvW#V(&ot&|WbORBr|Pi5Si@~4fdDxC6HUDx1P)D1`tgHr
z)EfXl!ue+*o~utT<*u6Tf4_%4Am(q;{qm(!%aoU7E}eIQ&-LZD9e#B(?v(i|YKO;B
zrC-fJH3QWQR5MV`Ks5u^3{*4lKW3oowy+;Q90$+^12?6TuucwG|I)F)dI7Yr0jLPX
z3pykaOU!*)ZoBsg0XB_zU=jDJn{dxp=Ar0#T>ln#bfhJsLKZP9*28aElvPw_o0BL}
z&{l6#%526T%(hMvu!OdzGFyI508Lf}4ZW<`{AIR>0|Z8-Wzq`<a%n)Dxp%1J^M1<{
zFytJlK+$Kz6P~MRGcE|A+fCbw?GVOp{(Z=7wj6<+lqXTR0Sn?m^l5%$GaHLRlh?ol
zF|?%^8r6(%tGukD{csJ-OAbHjk&U<)YnAd+*Uh+iF!omHw6&J;y!nNITj=<IHvT|%
UBNubWjQM<C`@IP^3~_tqAHCgdE&u=k

literal 0
HcmV?d00001

diff --git a/src/mainboard/clevo/tgl-u/variants/l140mu/devicetree.cb b/src/mainboard/clevo/tgl-u/variants/l140mu/devicetree.cb
new file mode 100644
index 0000000000..3809754381
--- /dev/null
+++ b/src/mainboard/clevo/tgl-u/variants/l140mu/devicetree.cb
@@ -0,0 +1,249 @@
+chip soc/intel/tigerlake
+	device cpu_cluster 0 on
+		register "tcc_offset" = "12"
+		register "eist_enable" = "true"
+		device lapic 0 on end
+	end
+	device domain 0 on
+		subsystemid 0x1558 0x14a1 inherit
+		device ref system_agent on
+			register "power_limits_config[POWER_LIMITS_U_4_CORE]" = "{
+				.tdp_pl1_override = 20,
+				.tdp_pl2_override = 30,
+				.psys_pmax = 65,
+			}"
+			register "power_limits_config[POWER_LIMITS_U_2_CORE]" = "{
+				.tdp_pl1_override = 20,
+				.tdp_pl2_override = 30,
+				.psys_pmax = 65,
+			}"
+			register "SaGv" = "SaGv_Enabled"
+			register "enable_c6dram" = "true"
+		end
+		device ref igpu on
+			register "gfx" = "GMA_DEFAULT_PANEL(0)"
+			# eDP
+			register "DdiPortAConfig" = "1"
+			register "DdiPortAHpd" = "1"
+			register "DdiPortADdc" = "0"
+			# HDMI
+			register "DdiPortBConfig" = "0"
+			register "DdiPortBHpd" = "1"
+			register "DdiPortBDdc" = "1"
+		end
+		device ref dptf on end
+		device ref tbt_pcie_rp0 on end
+		device ref tbt_dma0 on
+			chip drivers/intel/usb4/retimer
+				register "dfp[0].power_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_A23)"
+				use tcss_usb3_port1 as dfp[0].typec_port
+				device generic 0 on end
+			end
+		end
+		device ref north_xhci on
+			register "UsbTcPortEn" = "true"
+			register "TcssXhciEn" = "true"
+			chip drivers/usb/acpi
+				device ref tcss_root_hub on
+					chip drivers/usb/acpi
+						register "desc" = ""USB3 J_TYPEC1""
+						register "type" = "UPC_TYPE_C_USB2_SS_SWITCH"
+						register "group" = "ACPI_PLD_GROUP(1, 1)"
+						device ref tcss_usb3_port1 on end
+					end
+				end
+			end
+		end
+		device ref south_xhci on
+			# USB2
+			register "usb2_ports[0]" = "USB2_PORT_MID(OC_SKIP)"	# Type-A, left (J_USB3_1)
+			register "usb2_ports[1]" = "USB2_PORT_MID(OC_SKIP)"	# Type-A, right (J_USB3_2)
+			register "usb2_ports[2]" = "USB2_PORT_TYPE_C(OC_SKIP)"	# Type-C (J_TYPEC1)
+			register "usb2_ports[3]" = "USB2_PORT_MID(OC_SKIP)"	# 3G/LTE
+			register "usb2_ports[6]" = "USB2_PORT_MAX(OC_SKIP)"	# Camera
+			register "usb2_ports[9]" = "USB2_PORT_MID(OC_SKIP)"	# Bluetooth
+			# USB3
+			register "usb3_ports[0]" = "USB3_PORT_DEFAULT(OC_SKIP)"	# Type-A, left (J_USB3_1)
+			register "usb3_ports[1]" = "USB3_PORT_DEFAULT(OC_SKIP)"	# Type-A, right (J_USB3_2)
+			register "usb3_ports[3]" = "USB3_PORT_DEFAULT(OC_SKIP)"	# 3G/LTE
+			# ACPI
+			chip drivers/usb/acpi
+				device ref xhci_root_hub on
+					chip drivers/usb/acpi
+						register "desc" = ""USB2 J_USB3_1""
+						register "type" = "UPC_TYPE_A"
+						register "group" = "ACPI_PLD_GROUP(1, 2)"
+						device ref usb2_port1 on end
+					end
+					chip drivers/usb/acpi
+						register "desc" = ""USB2 J_USB3_2""
+						register "type" = "UPC_TYPE_A"
+						register "group" = "ACPI_PLD_GROUP(2, 1)"
+						device ref usb2_port2 on end
+					end
+					chip drivers/usb/acpi
+						register "desc" = ""USB2 J_TYPEC1""
+						register "type" = "UPC_TYPE_C_USB2_SS_SWITCH"
+						register "group" = "ACPI_PLD_GROUP(1, 1)"
+						device ref usb2_port3 on end
+					end
+					chip drivers/usb/acpi
+						register "desc" = ""USB2 3G/LTE""
+						register "type" = "UPC_TYPE_INTERNAL"
+						device ref usb2_port4 on end
+					end
+					chip drivers/usb/acpi
+						register "desc" = ""USB2 Camera""
+						register "type" = "UPC_TYPE_INTERNAL"
+						device ref usb2_port7 on end
+					end
+					chip drivers/usb/acpi
+						register "desc" = ""USB2 Bluetooth""
+						register "type" = "UPC_TYPE_INTERNAL"
+						device ref usb2_port10 on end
+					end
+					chip drivers/usb/acpi
+						register "desc" = ""USB3 J_USB3_1""
+						register "type" = "UPC_TYPE_A"
+						register "group" = "ACPI_PLD_GROUP(1, 1)"
+						device ref usb3_port1 on end
+					end
+					chip drivers/usb/acpi
+						register "desc" = ""USB3 J_USB3_2""
+						register "type" = "UPC_TYPE_A"
+						register "group" = "ACPI_PLD_GROUP(2, 1)"
+						device ref usb3_port2 on end
+					end
+					chip drivers/usb/acpi
+						register "desc" = ""USB3 3G/LTE""
+						register "type" = "UPC_TYPE_INTERNAL"
+						device ref usb3_port4 on end
+					end
+				end
+			end
+		end
+		device ref i2c0 on
+			register "SerialIoI2cMode[PchSerialIoIndexI2C0]" = "PchSerialIoPci"
+			register "common_soc_config.i2c[0]" = "{
+				.speed = I2C_SPEED_FAST,
+				.rise_time_ns = 80,
+				.fall_time_ns = 110,
+				.speed_config[0] = {
+					.speed = I2C_SPEED_FAST,
+					.scl_lcnt = 0x13b,
+					.scl_hcnt = 0xc8,
+					.sda_hold = 0x5a,
+				}
+			}"
+			chip drivers/i2c/hid
+				register "generic.hid" = ""ELAN040D""
+				register "generic.desc" = ""ELAN Touchpad""
+				register "generic.irq" = "ACPI_IRQ_LEVEL_LOW(GPP_B3_IRQ)"
+				register "generic.probed" = "true"
+				register "hid_desc_reg_offset" = "0x01"
+				device i2c 15 on end
+			end
+		end
+		device ref i2c1 on # Retimer ROM
+			register "SerialIoI2cMode[PchSerialIoIndexI2C1]" = "PchSerialIoPci"
+		end
+		device ref cnvi_wifi on
+			register "CnviBtCore" = "true"
+			chip drivers/wifi/generic
+				register "wake" = "GPE0_PME_B0"
+				device generic 0 on end
+			end
+		end
+		device ref pcie_rp3 on
+			register "PcieRpEnable[2]" = "true"
+			register "PcieRpLtrEnable[2]" = "true"
+			register "PcieClkSrcUsage[1]" = "2"
+			register "PcieClkSrcClkReq[1]" = "1"
+			register "PcieRpSlotImplemented[2]" = "true"
+			smbios_slot_desc "SlotTypeM2Socket1_SD" "SlotLengthOther" "M.2/E 2230 (J_WLAN1)" "SlotDataBusWidth1X"
+			chip drivers/wifi/generic
+				device pci 00.0 on end
+			end
+		end
+		device ref pcie_rp6 on
+			# Card reader
+			device pci 00.0 on end
+			register "PcieRpEnable[5]" = "true"
+			register "PcieRpLtrEnable[5]" = "true"
+			register "PcieClkSrcUsage[2]" = "5"
+			register "PcieClkSrcClkReq[2]" = "2"
+		end
+		device ref pcie_rp9 on
+			# SSD2 - PCIe mode
+			register "PcieRpEnable[8]" = "true"
+			register "PcieRpLtrEnable[8]" = "true"
+			register "PcieClkSrcUsage[0]" = "8"
+			register "PcieClkSrcClkReq[0]" = "0"
+			register "PcieRpSlotImplemented[8]" = "true"
+			smbios_slot_desc "SlotTypeM2Socket3" "SlotLengthOther" "M.2/M 2280 (J_SSD2)" "SlotDataBusWidth4X"
+			chip soc/intel/common/block/pcie/rtd3
+				device generic 0 on end
+				register "enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_D14)"
+				register "reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_D9)"
+				register "srcclk_pin" = "0"
+			end
+		end
+		device ref peg on
+			# SSD1 - PCIe4
+			register "PcieClkSrcUsage[3]" = "0x40"
+			register "PcieClkSrcClkReq[3]" = "3"
+			#register "CpuPcieRpLtrEnable[0]" = "true"       # currently set in ramstage.c
+			#register "CpuPcieRpSlotImplemented[0]" = "true" # currently set in ramstage.c
+			smbios_slot_desc "SlotTypeM2Socket3" "SlotLengthOther" "M.2/M 2280 (J_SSD1)" "SlotDataBusWidth4X"
+			chip soc/intel/common/block/pcie/rtd3
+				device generic 0 on end
+				register "enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_C13)"
+				register "reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_C22)"
+				register "srcclk_pin" = "3"
+			end
+		end
+		device ref pch_espi on
+			chip drivers/pc80/tpm
+				device pnp 0c31.0 on end
+			end
+		end
+		device ref sata on
+			# SSD2 - SATA mode
+			register "SataPortsEnable[1]" = "true"
+			register "SataPortsDevSlp[1]" = "true"
+			register "SataPortsEnableDitoConfig[1]" = "true"
+			register "SataSalpSupport" = "true"
+		end
+		device ref pmc hidden
+			register "AcousticNoiseMitigation" = "true"
+			register "SlowSlewRate" = "SLEW_FAST_4"
+			register "FastPkgCRampDisable" = "true"
+			register "PchPmSlpS3MinAssert" = "3" # 50ms
+			register "PchPmSlpS4MinAssert" = "1" # 1s
+			register "PchPmSlpAMinAssert" = "4" # 2s
+			register "PchPmSlpSusMinAssert" = "4" # 4s
+			register "PchPmPwrCycDur" = "0" # 4-5s
+			register "s0ix_enable" = "true"
+			chip drivers/intel/pmc_mux
+				device generic 0 on
+					chip drivers/intel/pmc_mux/conn
+						use usb2_port3 as usb2_port
+						use tcss_usb3_port1 as usb3_port
+						device generic 0 alias conn0 on end
+					end
+				end
+			end
+		end
+		device ref hda on
+			register "PchHdaAudioLinkHdaEnable" = "true"
+		end
+		device ref uart2 on
+			register "SerialIoUartMode[PchSerialIoIndexUART2]" = "PchSerialIoSkipInit"
+		end
+		device ref heci1 on end
+		device ref smbus on end
+		device ref shared_ram on end
+		device ref p2sb hidden end
+		device ref fast_spi on end
+	end
+end
diff --git a/src/mainboard/clevo/tgl-u/variants/l140mu/gpio.c b/src/mainboard/clevo/tgl-u/variants/l140mu/gpio.c
new file mode 100644
index 0000000000..6919baf418
--- /dev/null
+++ b/src/mainboard/clevo/tgl-u/variants/l140mu/gpio.c
@@ -0,0 +1,235 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <soc/gpe.h>
+#include <soc/gpio.h>
+#include <variant/gpio.h>
+
+/* Name format: <pad name> / <net/pin name in schematics> */
+static const struct pad_config gpio_table[] = {
+	/* ------- GPIO Group GPD ------- */
+	PAD_NC(GPD0, NONE),
+	PAD_CFG_NF(GPD1, NATIVE, DEEP, NF1),		/* ACPRESENT / AC_PRESENT */
+	PAD_NC(GPD2, NONE),
+	PAD_CFG_NF(GPD3, UP_20K, DEEP, NF1),		/* PWRBTN# / PWR_BTN# */
+	PAD_CFG_NF(GPD4, NONE, DEEP, NF1),		/* SLP_S3# / SUSB#_PCH */
+	PAD_CFG_NF(GPD5, NONE, DEEP, NF1),		/* SLP_S4# / SUSC#_PCH */
+	PAD_NC(GPD6, NONE),
+	PAD_NC(GPD7, NONE),
+	PAD_CFG_NF(GPD8, NONE, DEEP, NF1),		/* SUSCLK / SUS_CLK */
+	PAD_NC(GPD9, NONE),
+	PAD_NC(GPD10, NONE),
+	PAD_NC(GPD11, NONE),
+
+	/* ------- GPIO Group GPP_A ------- */
+	PAD_CFG_NF(GPP_A0, UP_20K, DEEP, NF1),		/* ESPI_IO0 / ESPI_IO_0 */
+	PAD_CFG_NF(GPP_A1, UP_20K, DEEP, NF1),		/* ESPI_IO1 / ESPI_IO_1 */
+	PAD_CFG_NF(GPP_A2, UP_20K, DEEP, NF1),		/* ESPI_IO2 / ESPI_IO_2 */
+	PAD_CFG_NF(GPP_A3, UP_20K, DEEP, NF1),		/* ESPI_IO3 / ESPI_IO_3 */
+	PAD_CFG_NF(GPP_A4, UP_20K, DEEP, NF1),		/* ESPI_CS# / ESPI_CS_N */
+	PAD_CFG_NF(GPP_A5, DN_20K, DEEP, NF1),		/* ESPI_CLK */
+	PAD_CFG_NF(GPP_A6, NONE, DEEP, NF1),		/* ESPI_RESET# / ESPI_RESET_N */
+	PAD_NC(GPP_A7, NONE),
+	PAD_CFG_NF(GPP_A8, NONE, DEEP, NF2),		/* CNV_RF_RESET# / CNVI_RST# */
+	PAD_CFG_NF(GPP_A9, UP_20K, DEEP, NF2),		/* MODEM_CLKREQ / CNVI_CLKREQ */
+	PAD_NC(GPP_A10, NONE),
+	PAD_NC(GPP_A11, NONE),
+	PAD_CFG_NF(GPP_A12, UP_20K, DEEP, NF1),		/* SATAXPCIE1 / SATAGP1 (wrong name!) */
+	PAD_CFG_GPO(GPP_A13, 1, DEEP),			/* GPP_A13 / PCH_BT_EN */
+	PAD_NC(GPP_A14, NONE),
+	PAD_NC(GPP_A15, NONE),
+	PAD_NC(GPP_A16, NONE),
+	PAD_NC(GPP_A17, NONE),
+	PAD_CFG_NF(GPP_A18, NONE, DEEP, NF1),		/* DDSP_HPDB / HDMI_HPD */
+	PAD_NC(GPP_A19, NONE),
+	PAD_NC(GPP_A20, NONE),
+	PAD_NC(GPP_A21, NONE),
+	PAD_NC(GPP_A22, NONE),
+	PAD_CFG_GPO(GPP_A23, 0, PLTRST),		/* GPP_A23 / TC_RETIMER_FORCE_PWR */
+
+	/* ------- GPIO Group GPP_B ------- */
+	PAD_CFG_NF(GPP_B0, NONE, DEEP, NF1),		/* CORE_VID0 / VCCIN_AUX_VID0 */
+	PAD_CFG_NF(GPP_B1, NONE, DEEP, NF1),		/* CORE_VID1 / VCCIN_AUX_VID1 */
+	PAD_CFG_NF(GPP_B2, NONE, DEEP, NF1),		/* VRALERT# */
+	PAD_CFG_GPI_APIC_LOW(GPP_B3, NONE, DEEP),	/* GPP_B3 (touchpad interrupt) */
+	PAD_NC(GPP_B4, NONE),
+	PAD_NC(GPP_B5, NONE),
+	PAD_NC(GPP_B6, NONE),
+	PAD_NC(GPP_B7, NONE),
+	PAD_NC(GPP_B8, NONE),
+	PAD_NC(GPP_B9, NONE),
+	PAD_NC(GPP_B10, NONE),
+	PAD_CFG_NF(GPP_B11, NONE, DEEP, NF1),		/* GPP_B11 / TBTA_I2C_INT */
+	PAD_CFG_NF(GPP_B12, NONE, DEEP, NF1),		/* SLP_S0# */
+	PAD_CFG_NF(GPP_B13, NONE, DEEP, NF1),		/* PLT_RST# */
+	PAD_CFG_NF(GPP_B14, NONE, DEEP, NF1),		/* SPKR / PCH_SPKR */
+	PAD_NC(GPP_B15, NONE),
+	PAD_NC(GPP_B16, NONE),
+	PAD_NC(GPP_B17, NONE),
+	PAD_NC(GPP_B18, NONE),
+	PAD_NC(GPP_B19, NONE),
+	PAD_NC(GPP_B20, NONE),
+	PAD_NC(GPP_B21, NONE),
+	PAD_NC(GPP_B22, NONE),
+	PAD_NC(GPP_B23, NONE),
+
+	/* ------- GPIO Group GPP_C ------- */
+	PAD_CFG_NF(GPP_C0, NONE, DEEP, NF1),		/* SMBCLK / SMB_CLK_DDR */
+	PAD_CFG_NF(GPP_C1, NONE, DEEP, NF1),		/* SMBDATA / SMB_DAT_DDR */
+	PAD_NC(GPP_C2, NONE),
+	PAD_CFG_NF(GPP_C3, NONE, DEEP, NF1),		/* SML0CLK */
+	PAD_CFG_NF(GPP_C4, NONE, DEEP, NF1),		/* SML0_DATA */
+	PAD_NC(GPP_C5, NONE),
+	PAD_CFG_NF(GPP_C6, NONE, DEEP, NF1),		/* SML1CLK / TBT_I2C_SCL */
+	PAD_CFG_NF(GPP_C7, NONE, DEEP, NF1),		/* SML1_DATA / TBT_I2C_SDA */
+	PAD_NC(GPP_C8, NONE),
+	PAD_CFG_GPI_APIC_LOW(GPP_C9, NONE, DEEP),	/* GPP_C9 / TPM_PIRQ# */
+	PAD_NC(GPP_C10, NONE),
+	PAD_NC(GPP_C11, NONE),
+	PAD_NC(GPP_C12, NONE),
+	PAD_CFG_GPO(GPP_C13, 1, DEEP),			/* GPP_C13 / SSD1_PWR_DN# */
+	PAD_NC(GPP_C14, NONE),
+	PAD_NC(GPP_C15, NONE),
+	PAD_CFG_NF(GPP_C16, NONE, DEEP, NF1),		/* I2C0_SDA / T_SDA (touchpad) */
+	PAD_CFG_NF(GPP_C17, NONE, DEEP, NF1),		/* I2C0_SCL / T_SCL (touchpad) */
+	PAD_CFG_NF(GPP_C18, NONE, DEEP, NF1),		/* I2C1_SDA / PCH_I2C_SDA (retimer rom) */
+	PAD_CFG_NF(GPP_C19, NONE, DEEP, NF1),		/* I2C1_SCL / PCH_I2C_SCL (retimer rom) */
+	PAD_CFG_NF(GPP_C20, UP_20K, DEEP, NF1),		/* UART2_RXD */
+	PAD_CFG_NF(GPP_C21, UP_20K, DEEP, NF1),		/* UART2_TXD */
+	PAD_CFG_GPO(GPP_C22, 1, DEEP),			/* GPP_C22 / GPP_C12_RTD3 (SSD1) */
+	PAD_NC(GPP_C23, UP_20K),			/* GPP_C23 / PCH_GPP_C23 (WLAN_WAKEUP#) */
+
+	/* ------- GPIO Group GPP_D ------- */
+	PAD_CFG_GPO(GPP_D0, 1, DEEP),			/* GPP_D0 / SB_BLON */
+	PAD_NC(GPP_D1, NONE),
+	PAD_NC(GPP_D2, NONE),				/* LEDKB_DET# (unused; not sold w/o KBLED) */
+	PAD_NC(GPP_D3, NONE),				/* BOARD_ID (unused; always high) */
+	PAD_NC(GPP_D4, NONE),
+	PAD_CFG_NF(GPP_D5, NONE, DEEP, NF1),		/* SRCCLKREQ0# / SSD1_CLKREQ# (for SSD2!) */
+	PAD_CFG_NF(GPP_D6, NONE, DEEP, NF1),		/* SRCCLKREQ1# / WLAN_CLKREQ# */
+	PAD_CFG_NF(GPP_D7, NONE, DEEP, NF1),		/* SRCCLKREQ2# / CARD_CLKREQ# */
+	PAD_CFG_NF(GPP_D8, NONE, DEEP, NF1),		/* SRCCLKREQ3# / SSD2_CLKREQ# (for SSD1!) */
+	PAD_CFG_GPO(GPP_D9, 1, DEEP),			/* GPP_D9 / GPP_D13_RTD3 (SSD2) */
+	PAD_NC(GPP_D10, NONE),
+	PAD_NC(GPP_D11, NONE),
+	PAD_NC(GPP_D12, NONE),
+	PAD_NC(GPP_D13, NONE),
+	PAD_CFG_GPO(GPP_D14, 1, DEEP),			/* GPP_D14 / SSD2_PWR_DN# */
+	PAD_NC(GPP_D15, NONE),
+	PAD_NC(GPP_D16, NONE),
+	PAD_NC(GPP_D17, NONE),
+	PAD_NC(GPP_D18, NONE),
+	PAD_NC(GPP_D19, NONE),
+
+	/* ------- GPIO Group GPP_E ------- */
+	PAD_NC(GPP_E0, NONE),
+	PAD_CFG_GPO(GPP_E1, 0, DEEP),			/* GPP_E1 / ROM_I2C_EN */
+	PAD_NC(GPP_E2, NONE),
+	PAD_NC(GPP_E3, NONE),				/* SB_KBCRST# (eSPI Virtual Wire) */
+	PAD_NC(GPP_E4, NONE),
+	PAD_CFG_NF(GPP_E5, NONE, DEEP, NF1),		/* DEVSLP1 */
+	PAD_NC(GPP_E6, NONE),
+	PAD_NC(GPP_E7, NONE),
+	PAD_NC(GPP_E8, NONE),
+	PAD_NC(GPP_E9, NONE),
+	PAD_NC(GPP_E10, NONE),
+	PAD_NC(GPP_E11, NONE),
+	PAD_NC(GPP_E12, NONE),
+	PAD_NC(GPP_E13, NONE),
+	PAD_CFG_NF(GPP_E14, NONE, DEEP, NF1),		/* DDSP_HPDA / EDP_HPD */
+	PAD_NC(GPP_E15, NONE),				/* SCI# (eSPI Virtual Wire) */
+	PAD_NC(GPP_E16, NONE),				/* SMI# (eSPI Virtual Wire) */
+	PAD_NC(GPP_E17, NONE),
+	PAD_CFG_NF(GPP_E18, NONE, DEEP, NF2),		/* TBT_LSX0_TXD */
+	PAD_CFG_NF(GPP_E19, NONE, DEEP, NF2),		/* TBT_LSX0_RXD */
+	PAD_NC(GPP_E20, NONE),				/* SWI# (eSPI Virtual Wire) */
+	PAD_NC(GPP_E21, NONE),
+	PAD_NC(GPP_E22, NONE),
+	PAD_NC(GPP_E23, NONE),
+
+	/* ------- GPIO Group GPP_F ------- */
+	PAD_CFG_NF(GPP_F0, NONE, DEEP, NF1),		/* CNV_BRI_DT / CNVI_BRI_DT */
+	PAD_CFG_NF(GPP_F1, UP_20K, DEEP, NF1),		/* CNV_BRI_RSP / CNVI_BRI_RSP */
+	PAD_CFG_NF(GPP_F2, NONE, DEEP, NF1),		/* CNV_RGI_DT / CNVI_RGI_DT */
+	PAD_CFG_NF(GPP_F3, UP_20K, DEEP, NF1),		/* CNV_RGI_RSP / CNVI_RGI_RSP */
+	PAD_NC(GPP_F4, NONE),
+	PAD_NC(GPP_F5, NONE),
+	PAD_NC(GPP_F6, NONE),
+	PAD_NC(GPP_F7, NONE),
+	PAD_NC(GPP_F8, NONE),
+	PAD_NC(GPP_F9, NONE),
+	PAD_NC(GPP_F10, NONE),
+	PAD_NC(GPP_F11, NONE),
+	PAD_NC(GPP_F12, NONE),
+	PAD_NC(GPP_F13, NONE),
+	PAD_NC(GPP_F14, NONE),
+	PAD_NC(GPP_F15, NONE),
+	PAD_NC(GPP_F16, NONE),
+	PAD_CFG_GPI(GPP_F17, UP_20K, DEEP),		/* GPP_F17 / TPM_DET# */
+	PAD_NC(GPP_F18, NONE),
+	PAD_NC(GPP_F19, NONE),
+	PAD_NC(GPP_F20, NONE),
+	PAD_NC(GPP_F21, NONE),
+	PAD_NC(GPP_F22, NONE),
+	PAD_NC(GPP_F23, NONE),
+
+	/* ------- GPIO Group GPP_H ------- */
+	PAD_NC(GPP_H0, NONE),
+	PAD_NC(GPP_H1, NONE),
+	PAD_NC(GPP_H2, NONE),
+	PAD_NC(GPP_H3, NONE),
+	PAD_NC(GPP_H4, NONE),
+	PAD_NC(GPP_H5, NONE),
+	PAD_NC(GPP_H6, NONE),
+	PAD_NC(GPP_H7, NONE),
+	PAD_NC(GPP_H8, NONE),
+	PAD_NC(GPP_H9, NONE),
+	PAD_NC(GPP_H10, NONE),
+	PAD_NC(GPP_H11, NONE),
+	PAD_NC(GPP_H12, NONE),
+	PAD_NC(GPP_H13, NONE),
+	PAD_NC(GPP_H14, NONE),
+	PAD_NC(GPP_H15, NONE),
+	PAD_CFG_NF(GPP_H16, NONE, DEEP, NF1),		/* DDPB_CTRLCLK / HDMI_CTRLCLK */
+	PAD_CFG_NF(GPP_H17, NONE, DEEP, NF1),		/* DDPB_CTRLDATA / HDMI_CTRLDATA */
+	PAD_CFG_NF(GPP_H18, NONE, DEEP, NF1),		/* CPU_C10_GATE# */
+	PAD_NC(GPP_H19, NONE),				/* GPP_H19 / CNVI_WAKE#
+							   (UART_WAKE# in M.2 spec; unused)
+							 */
+	PAD_NC(GPP_H20, NONE),
+	PAD_NC(GPP_H21, NONE),
+	PAD_NC(GPP_H22, NONE),
+	PAD_NC(GPP_H23, NONE),
+
+	/* ------- GPIO Group GPP_R ------- */
+	PAD_CFG_NF(GPP_R0, NONE, DEEP, NF1),		/* HDA_BCLK / HDA_BITCLK */
+	PAD_CFG_NF(GPP_R1, NATIVE, DEEP, NF1),		/* HDA_SYNC */
+	PAD_CFG_NF(GPP_R2, NATIVE, DEEP, NF1),		/* HDA_SDO / HDA_SDOUT */
+	PAD_CFG_NF(GPP_R3, NATIVE, DEEP, NF1),		/* HDA_SDI0 / HDA_SDIN0 */
+	PAD_CFG_NF(GPP_R4, NONE, DEEP, NF1),		/* HDA_RST# / AZ_RST#_R */
+	PAD_NC(GPP_R5, NONE),
+	PAD_NC(GPP_R6, NONE),
+	PAD_NC(GPP_R7, NONE),
+
+	/* ------- GPIO Group GPP_S ------- */
+	PAD_NC(GPP_S0, NONE),
+	PAD_NC(GPP_S1, NONE),
+	PAD_NC(GPP_S2, NONE),
+	PAD_NC(GPP_S3, NONE),
+	PAD_NC(GPP_S4, NONE),
+	PAD_NC(GPP_S5, NONE),
+	PAD_NC(GPP_S6, NONE),
+	PAD_NC(GPP_S7, NONE),
+
+	/* ------- GPIO Group GPP_T ------- */
+	PAD_NC(GPP_T2, NONE),
+	PAD_NC(GPP_T3, NONE),
+
+	/* ------- GPIO Group GPP_U ------- */
+	PAD_NC(GPP_U4, NONE),
+	PAD_NC(GPP_U5, NONE),
+};
+
+void variant_configure_gpios(void)
+{
+	gpio_configure_pads(gpio_table, ARRAY_SIZE(gpio_table));
+}
diff --git a/src/mainboard/clevo/tgl-u/variants/l140mu/gpio_early.c b/src/mainboard/clevo/tgl-u/variants/l140mu/gpio_early.c
new file mode 100644
index 0000000000..79da92d842
--- /dev/null
+++ b/src/mainboard/clevo/tgl-u/variants/l140mu/gpio_early.c
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <soc/gpio.h>
+#include <variant/gpio.h>
+
+/* Name format: <pad name> / <net/pin name in schematics> */
+static const struct pad_config early_gpio_table[] = {
+	PAD_CFG_NF(GPP_C20, NONE, DEEP, NF1),		/* UART2_RXD */
+	PAD_CFG_NF(GPP_C21, NONE, DEEP, NF1),		/* UART2_TXD */
+};
+
+void variant_configure_early_gpios(void)
+{
+	gpio_configure_pads(early_gpio_table, ARRAY_SIZE(early_gpio_table));
+}
diff --git a/src/mainboard/clevo/tgl-u/variants/l140mu/hda_verb.c b/src/mainboard/clevo/tgl-u/variants/l140mu/hda_verb.c
new file mode 100644
index 0000000000..ebe499d086
--- /dev/null
+++ b/src/mainboard/clevo/tgl-u/variants/l140mu/hda_verb.c
@@ -0,0 +1,82 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <device/azalia_device.h>
+
+const u32 cim_verb_data[] = {
+	/* Realtek ALC293 */
+	0x10ec0293, /* Vendor ID */
+	0x155814a1, /* Subsystem ID */
+	12, /* Number of entries */
+	AZALIA_SUBVENDOR(0, 0x155814a1),
+
+	/* Microphone (display lid), vendor value: 0x90a60130 */
+	AZALIA_PIN_CFG(0, 0x12, AZALIA_PIN_DESC(
+			INTEGRATED,
+			LOCATION_OTHER,		/* vendor: SEPARATE_CHASSIS */
+			SPECIAL7,		/* lid, vendor: NA */
+			MIC_IN,
+			OTHER_DIGITAL,
+			COLOR_UNKNOWN,
+			1,			/* no presence detect */
+			3, 0)
+	),
+
+	/* Integrated speakers, vendor value: 0x90170110 */
+	AZALIA_PIN_CFG(0, 0x14, AZALIA_PIN_DESC(
+			INTEGRATED,
+			LOCATION_OTHER,		/* vendor: SEPARATE_CHASSIS */
+			BOTTOM,			/* vendor: NA */
+			SPEAKER,
+			OTHER_ANALOG,
+			COLOR_UNKNOWN,
+			1,			/* no presence detect */
+			1, 0)
+	),
+
+	/* Headphones, vendor value: 0x02211020 */
+	AZALIA_PIN_CFG(0, 0x15, AZALIA_PIN_DESC(
+			JACK,
+			EXTERNAL_PRIMARY_CHASSIS,
+			RIGHT,			/* vendor: FRONT */
+			HP_OUT,
+			STEREO_MONO_1_8,
+			BLACK,
+			0,			/* has presence detect */
+			2, 0)
+	),
+
+	/* ext. Microphone, vendor value: 0x411111f0, linux override: 0x01a1913c */
+	AZALIA_PIN_CFG(0, 0x1a, AZALIA_PIN_DESC(
+			JACK,
+			EXTERNAL_PRIMARY_CHASSIS,
+			RIGHT,			/* vendor: REAR */
+			MIC_IN,
+			STEREO_MONO_1_8,
+			BLACK,			/* vendor: PINK */
+			1,			/* no separate presence detect */
+			3, 12)
+	),
+
+	/* PCBEEP, vendor value: 0x41748245 */
+	AZALIA_PIN_CFG(0, 0x1d, AZALIA_PIN_DESC(
+			INTEGRATED,		/* vendor: NC */
+			INTERNAL,		/* vendor: EXTERNAL_PRIMARY_CHASSIS */
+			NA,			/* vendor: REAR */
+			DEVICE_OTHER,		/* vendor: MODEM_HANDSET_SIDE */
+			OTHER_ANALOG,		/* vendor: RCA */
+			COLOR_UNKNOWN,		/* vendor: PURPLE */
+			1,			/* no presence detect, vendor: 2 */
+			4, 5)
+	),
+
+	AZALIA_PIN_CFG(0, 0x13, 0x40000000),	/* NC, but different from 0x411111f0 */
+	AZALIA_PIN_CFG(0, 0x16, AZALIA_PIN_CFG_NC(0)),
+	AZALIA_PIN_CFG(0, 0x18, AZALIA_PIN_CFG_NC(0)),
+	AZALIA_PIN_CFG(0, 0x19, AZALIA_PIN_CFG_NC(0)),
+	AZALIA_PIN_CFG(0, 0x1b, AZALIA_PIN_CFG_NC(0)),
+	AZALIA_PIN_CFG(0, 0x1e, AZALIA_PIN_CFG_NC(0)),
+};
+
+const u32 pc_beep_verbs[] = {};
+
+AZALIA_ARRAY_SIZES;
diff --git a/src/mainboard/clevo/tgl-u/variants/l140mu/ramstage.c b/src/mainboard/clevo/tgl-u/variants/l140mu/ramstage.c
new file mode 100644
index 0000000000..6933e9904d
--- /dev/null
+++ b/src/mainboard/clevo/tgl-u/variants/l140mu/ramstage.c
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <soc/ramstage.h>
+#include <variant/ramstage.h>
+
+void variant_configure_fsps(FSP_S_CONFIG *params)
+{
+	/* SSD1 - PCIe4 */
+	params->CpuPcieRpLtrEnable[0] = 1;
+	params->CpuPcieRpSlotImplemented[0] = 1;
+}
diff --git a/src/mainboard/clevo/tgl-u/variants/l140mu/romstage.c b/src/mainboard/clevo/tgl-u/variants/l140mu/romstage.c
new file mode 100644
index 0000000000..14e81fe2fe
--- /dev/null
+++ b/src/mainboard/clevo/tgl-u/variants/l140mu/romstage.c
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <soc/meminit.h>
+#include <variant/romstage.h>
+
+void variant_configure_fspm(FSPM_UPD *memupd)
+{
+	const struct mb_cfg board_cfg = {
+		.type = MEM_TYPE_DDR4,
+	};
+	const struct mem_spd spd_info = {
+		.topo = MEM_TOPO_MIXED,
+		.cbfs_index = 0,
+		.smbus[1] = { .addr_dimm[0] = 0x52, },
+	};
+	const bool half_populated = false;
+
+	memcfg_init(memupd, &board_cfg, &spd_info, half_populated);
+}