coreboot-kgpe-d16/Documentation/mainboard
Bill XIE 012ef7735d mainboard/lenovo/t430s: Add ThinkPad T431s as a variant
The code is based on autoport and that for T430s

Tested:
- CPU i5-3337U
- Slotted DIMM 2GiB
- Soldered RAM 4GiB from samsung (There may be more models here)
- Camera
- pci-e and usb2 on M.2 slot with A key for wlan
- sata and usb2  (no superspeed components) on M.2 slot with B key for wwan
- On board SDHCI connected to pci-e
- USB3 ports
- libgfxinit-based graphic init
- NVRAM options for North and South bridges
- Sound
- Thinkpad EC
- S3
- TPM1 on LPC
- EHCI debug on SSP2 (USB3 port on the left)
- Linux 4.9.110-3 within Debian GNU/Linux stable, loaded from
  Linux payload (Heads), Seabios may also work.

Not tested:
- Fingerprint reader on USB2 (not present on mine)
- Keyboard backlight (not present on mine)
- "sticky_fn" flag in nvram

Not implemented yet:
- Fn locking in nvram (may not be identical to "sticky_fn")
- C-based native graphic init (since T431s has eDP instead of LVDS)
- Detecting the model of Soldered RAM at runtime, and loading the
  corresponding SPD datum (3 observed) from CBFS (the mechanism may be
  similar to that on x1_carbon_gen1 and s230u, but I do not know how
  to find gpio ports for that, and SPD data stored in vendor firmware.)

Change-Id: Ic8062cacf5e8232405bb5757e1b1d063541f354a
Signed-off-by: Bill XIE <persmule@gmail.com>
Reviewed-on: https://review.coreboot.org/c/30021
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
2018-12-07 11:20:53 +00:00
..
asrock mainboard: Add ASRock H81M-HDS 2018-11-16 10:05:26 +00:00
asus mainboard: Add ASUS P8H61-M LX 2018-08-03 15:18:07 +00:00
cavium Documentation: Add cavium SoC and mainboard 2018-06-19 18:09:04 +00:00
emulation Documentation/mainboard: Add emulation/spike-riscv.md 2018-10-29 11:19:34 +00:00
foxconn mb/foxconn/d41s: Add mainboard 2018-08-23 15:51:47 +00:00
gigabyte Documentation/mainboard/gigabyte/ga-h61m-s2pv: Expand page 2018-10-05 21:14:54 +00:00
google Documentation/../../dragonegg: Add dragonegg coreboot development documentation 2018-11-27 08:57:07 +00:00
hp Documentation: Update index.md and move files 2018-05-30 09:14:48 +00:00
intel Documentation/../../icelake_rvp: Add RVP coreboot development documentation 2018-11-27 08:56:49 +00:00
lenovo mainboard/lenovo/t430s: Add ThinkPad T431s as a variant 2018-12-07 11:20:53 +00:00
opencellular Documentation: Improve elgon documentation 2018-10-08 08:45:17 +00:00
sifive Documentation/mb/sifive: Fix dead links 2018-10-06 21:32:11 +00:00
index.md mainboard/lenovo/t430s: Add ThinkPad T431s as a variant 2018-12-07 11:20:53 +00:00