mb/lenovo/w541: Add ThinkPad W541

Add support for the ThinkPad W541 based on Peter Lemenkov's initial W541
port. Compiled and tested with SeaBIOS and Tianocore booting into Arch
Linux 5.10.32-lts. The Haswell mrc.bin blob is required.

Tested working:
- SATA SSD
- SATA DVD drive
- M.2 SATA
- All USB ports
- SD card reader
- Speakers/headphone jack
- Keyboard/touchpad
- libgfxinit
- VGA
- mini DisplayPort (Thunderbolt untested)
- eDP laptop screen
- NVIDIA GPU in Linux
- Camera/Mic
- Smartcard reader
- Internal flashing when IFD is unlocked
- ThinkPad basic dock (VGA, USB, Ethernet)
- CMOS options
- WLAN
- Bluetooth
- Ethernet
- Using me_cleaner
- All DDR3 slots

Not working:
- Keyboard backlight
- First boot can take up to 20s (MRC.bin is slow)

Untested:
- Thunderbolt
- Internal flashing when IFD is locked
- Other ThinkPad docks (DisplayPort, DVI, Audio)
- ExpressCard slot
- Battery thresholds
- WWAN card
- Fingerprint reader
- USB Debug console

Signed-off-by: Justin Wu <amersel@runbox.me>
Change-Id: Ia43070f51bba3cf59ba9b7d9e29e4e778efbeb08
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52659
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Peter Lemenkov <lemenkov@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

3 files changed, 21 insertions, 0 deletions

diff --git a/src/mainboard/lenovo/w541/acpi/ec.asl b/src/mainboard/lenovo/w541/acpi/ec.asl
new file mode 100644
index 0000000000..8dea152079
--- /dev/null
+++ b/src/mainboard/lenovo/w541/acpi/ec.asl
@@ -0,0 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include <ec/lenovo/h8/acpi/ec.asl>
+#include <ec/lenovo/h8/acpi/thinkpad_bat_thresholds_b0.asl>
diff --git a/src/mainboard/lenovo/w541/acpi/platform.asl b/src/mainboard/lenovo/w541/acpi/platform.asl
new file mode 100644
index 0000000000..f5a4df75f4
--- /dev/null
+++ b/src/mainboard/lenovo/w541/acpi/platform.asl
@@ -0,0 +1,14 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+Method(_WAK,1)
+{
+	/* ME may not be up yet. */
+	\_TZ.MEB1 = 0
+	\_TZ.MEB2 = 0
+	Return(Package(){0,0})
+}
+
+Method(_PTS,1)
+{
+	\_SB.PCI0.LPCB.EC.RADI(0)
+}
diff --git a/src/mainboard/lenovo/w541/acpi/superio.asl b/src/mainboard/lenovo/w541/acpi/superio.asl
new file mode 100644
index 0000000000..ee2eabeb75
--- /dev/null
+++ b/src/mainboard/lenovo/w541/acpi/superio.asl
@@ -0,0 +1,3 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include <drivers/pc80/pc/ps2_controller.asl>