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coreboot-kgpe-d16/Documentation/mainboard/lenovo/t440p.md
dalao 56a25a98db mainboard/lenovo: Use the original hardware ids for keyboard/pointing 
Currently coreboot is using the compatible ID PNP0303 for all keyboards
and PNP0F13 for all pointing devices, which causes some problems. On
Windows, the touchpad driver can't be automatically matched and
installed through Windows Update. On Linux, there are some strange
issues. So it's better to use the original hardware IDs for each model.
The hardware IDs for the following models can be found By searching for
dmesg logs on vendor BIOS:

T60: https://mail.gnome.org/archives/networkmanager-list/2012-January/msg00110.html
Keyboard: PNP0303 Pointing: IBM0057

R60: https://openbenchmarking.org/system/1202279-AR-COMPRESS715/Lenovo%20R60/dmesg
Keyboard: PNP0303 Pointing: IBM0057

X60: https://github.com/pavelmachek/missy/blob/master/db/notebook/lenovo/thinkpad/x60/pavel/2018.3648803539788/dmesg.out
Keyboard: PNP0303 Pointing: IBM3780

X200: https://ubuntuforums.org/showthread.php?t=1833248&page=2
Keyboard: LEN0010 Pointing: IBM3780

T400: https://github.com/heradon/libreboot-fork/blob/master/docs/future/dumps/logs-t400-bios2.02-ec1.01/dmesg.log
Keyboard: LEN0010 Pointing: IBM3780

T510: https://bbs.archlinux.org/viewtopic.php?id=120287
Keyboard: PNP0303 Pointing: LEN0015

T410: https://forum.ubuntuusers.de/topic/kein-sound-109/
Keyboard: PNP0303 Pointing: LEN0015

T420: https://linux-hardware.org/index.php?probe=e6a094ade5&log=dmesg
Keyboard: PNP0303 Pointing: LEN0015

T420s: https://bbs.archlinux.org/viewtopic.php?id=191510
Keyboard: PNP0303 Pointing: LEN0015

T520: https://bbs.archlinux.org/viewtopic.php?id=195636
Keyboard: PNP0303 Pointing: LEN0015

W520: https://linux-hardware.org/index.php?probe=9306cac54c&log=dmesg
Keyboard: PNP0303 Pointing: LEN0015

T430: https://github.com/farjump/fwtr/blob/master/lenovo/thinkpad-t430/2347ds2/lenovo/g1et73ww-2.09/fwts/20160218_174223/dmesg.log
Keyboard: PNP0303 Pointing: LEN0015

T430s: https://linux-hardware.org/index.php?probe=01545dc8fb&log=dmesg
Keyboard: PNP0303 Pointing: LEN0015

T530: https://forums.fedoraforum.org/showthread.php?316640-Fedora-27-High-CPU
Keyboard: LEN0071 Pointing: LEN0015

W530: https://bugs.freedesktop.org/attachment.cgi?id=115557
Keyboard: LEN0071 Pointing: LEN0015

L520: https://pastebin.com/U6MaBAY3
Keyboard: PNP0303 Pointing: LEN0017

X201: https://linux-hardware.org/index.php?probe=d7085ee4c8&log=dmesg.1
Keyboard: PNP0303 Pointing: LEN0018

X220: https://bbs.archlinux.org/viewtopic.php?id=237669
Keyboard: PNP0303 Pointing: LEN0020

X230: https://forums.bunsenlabs.org/viewtopic.php?id=2460
Keyboard: PNP0303 Pointing: LEN0020

X131e: https://linux-hardware.org/index.php?probe=d765880811&log=dmesg
Keyboard: MSF0001 Pointing: LEN0026

X1 Carbon Gen 1: https://bugzilla.kernel.org/show_bug.cgi?id=85851
Keyboard: LEN0071 Pointing: LEN0030

s230u: https://launchpadlibrarian.net/147231958/dmesg-reboot.txt
Keyboard: PTL0001 Pointing: LEN0031

T540p: https://linux-hardware.org/index.php?probe=da766a30bc&log=dmesg
Keyboard: LEN0071 Pointing: LEN0034

X240: https://linux-hardware.org/index.php?probe=fa7155b0e4&log=dmesg
Keyboard: LEN0071 Pointing: LEN0035

T440p: https://bugzilla.kernel.org/show_bug.cgi?id=91541
Keyboard: LEN0071 Pointing: LEN0036

T440s: https://bugzilla.kernel.org/show_bug.cgi?id=91541
Keyboard: LEN0071 Pointing: LEN0036

T450: https://gist.github.com/kzar/1c38630eb22e4bf5b976
Keyboard: LEN0071 Pointing: LEN200e

Others:
https://github.com/torvalds/linux/blob/master/drivers/input/mouse/synaptics.c

Test result: This can make Windows automatically install the Lenovo
touchpad driver. It also fixes the T440p touchpad issue.

Change-Id: Ifb635da99c5e05f987aaf4f172108d788dcc2932
Signed-off-by: dalao <dalao@tutanota.com>
Signed-off-by: Iru Cai <mytbk920423@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36371
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-04-14 09:50:10 +00:00

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Lenovo ThinkPad T440p

This page describes how to run coreboot on Lenovo ThinkPad T440p.

Required proprietary blobs

Please see mrc.bin.

Flashing instructions

T440p has two flash chips, an 8MB W25Q64FV and a 4MB W25Q32FV. To flash coreboot, you just need to remove the big door according to the T440 Hardware Maintenance Manual and flash the 4MB chip.

T440p flash chip

To access the 8MB chip, you need to remove the base cover.

T440p 8MB flash chip

The flash layout of the OEM firmware is as follows:

00000000:00000fff fd
00001000:00002fff gbe
00003000:004fffff me
00500000:00bfffff bios

After flashing coreboot, you may need to re-plug the AC adapter to make the laptop able to power on.

Known Issues

  • No audio output when using a headphone
  • Cannot get the mainboard serial number from the mainboard: the OEM UEFI firmware gets the serial number from an "emulated EEPROM" via I/O port 0x1630/0x1634, but it's still unknown how to make it work
  • The dGPU does not currently work in Windows.

Working

  • boot Arch Linux with Linux 4.19.77 from SeaBIOS payload
  • integrated graphics init with libgfxinit
  • EHCI debug: the port is the non-charging USB2 port on the right
  • video output: internal (eDP), miniDP, dock DP, dock HDMI
  • ACPI support
  • keyboard and trackpoint
  • SATA
  • M.2 SATA SSD
  • USB
  • Ethernet
  • WLAN
  • WWAN
  • bluetooth
  • virtualization: VT-x and VT-d
  • dock
  • CMOS options: wlan, trackpoint, fn_ctrl_swap
  • internal flashing when IFD is unlocked
  • using me_cleaner
  • dGPU (must be enabled in CMOS options)