GNUBoot
/
coreboot-kgpe-d16
2
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
coreboot-kgpe-d16/Documentation/mainboard/lenovo/t440p.md

63 lines
1.9 KiB
Markdown
Raw Normal View History

mainboard: Add Lenovo ThinkPad T440p The code is based on autoport. This port is tested on a T440p without a dGPU and can boot Arch Linux from SATA disk with SeaBIOS payload. The tested components and issues are in the documentation. Change-Id: I56a6b94197789a83731d8b349b8ba6814bf57ca2 Signed-off-by: Iru Cai <mytbk920423@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/34359 Reviewed-by: Patrick Rudolph <siro@das-labor.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-06-30 15:16:50 +02:00
# Lenovo ThinkPad T440p
This page describes how to run coreboot on [Lenovo ThinkPad T440p].
## Required proprietary blobs
Please see [mrc.bin](../../northbridge/intel/haswell/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](t440p_flash_chip.jpg)
To access the 8MB chip, you need to remove the base cover.
![T440p 8MB flash chip](t440p_all_flash_chips.jpg)
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
nb/intel/haswell/peg: Add PEG driver stub This is a port of https://review.coreboot.org/c/coreboot/+/22337 to the Haswell northbridge. This code is necessary to support the dGPU of the t440p. Code was cut and pasted from Sandy Bridge with vendor IDs updated to the correct Haswell values. Tested on t440p with dGPU on Ubuntu 18.04.4 with 5.3.0-28 kernel. Without patches dmesg reports Nouveau is unable to read the VBIOS of the dGPU as it has an invalid checksum (I checked that the ROM in CBFS is correct). With this patch DRM works correctly with both the Nouveau driver and the Nvidia proprietary driver. Windows 10 1909 also tested but generates bluescreen once GPU driver is loaded. Change-Id: Ie5f089fb6fd774e6c61f4f9281e2945bd44edf27 Signed-off-by: Chris Morgan <macromorgan@hotmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/38743 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Rudolph <siro@das-labor.org>
2020-02-07 16:40:42 +01:00
- The dGPU does not currently work in Windows.
mainboard: Add Lenovo ThinkPad T440p The code is based on autoport. This port is tested on a T440p without a dGPU and can boot Arch Linux from SATA disk with SeaBIOS payload. The tested components and issues are in the documentation. Change-Id: I56a6b94197789a83731d8b349b8ba6814bf57ca2 Signed-off-by: Iru Cai <mytbk920423@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/34359 Reviewed-by: Patrick Rudolph <siro@das-labor.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-06-30 15:16:50 +02:00
## 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`
nb/intel/haswell/peg: Add PEG driver stub This is a port of https://review.coreboot.org/c/coreboot/+/22337 to the Haswell northbridge. This code is necessary to support the dGPU of the t440p. Code was cut and pasted from Sandy Bridge with vendor IDs updated to the correct Haswell values. Tested on t440p with dGPU on Ubuntu 18.04.4 with 5.3.0-28 kernel. Without patches dmesg reports Nouveau is unable to read the VBIOS of the dGPU as it has an invalid checksum (I checked that the ROM in CBFS is correct). With this patch DRM works correctly with both the Nouveau driver and the Nvidia proprietary driver. Windows 10 1909 also tested but generates bluescreen once GPU driver is loaded. Change-Id: Ie5f089fb6fd774e6c61f4f9281e2945bd44edf27 Signed-off-by: Chris Morgan <macromorgan@hotmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/38743 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Rudolph <siro@das-labor.org>
2020-02-07 16:40:42 +01:00
- dGPU (must be enabled in CMOS options)
mainboard: Add Lenovo ThinkPad T440p The code is based on autoport. This port is tested on a T440p without a dGPU and can boot Arch Linux from SATA disk with SeaBIOS payload. The tested components and issues are in the documentation. Change-Id: I56a6b94197789a83731d8b349b8ba6814bf57ca2 Signed-off-by: Iru Cai <mytbk920423@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/34359 Reviewed-by: Patrick Rudolph <siro@das-labor.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-06-30 15:16:50 +02:00
[Lenovo ThinkPad T440p]: https://pcsupport.lenovo.com/us/zh/products/laptops-and-netbooks/thinkpad-t-series-laptops/thinkpad-t440p
[Hardware Maintenance Manual]: https://download.lenovo.com/ibmdl/pub/pc/pccbbs/mobiles_pdf/t440p_hmm_en_sp40a25467_04.pdf