coreboot-kgpe-d16/Documentation/mainboard/lenovo
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
..
flashlayout_xx20.svg
flashlayout_xx30.svg
t4xx_series.md mb/lenovo/t400: Improve docking code 2018-11-10 11:51:27 +00:00
t420.md Documentation/mainboard/lenovo/t420.md: add pic of chip 2018-12-05 07:02:32 +00:00
t420_chip_location.jpg Documentation/mainboard/lenovo/t420.md: add pic of chip 2018-12-05 07:02:32 +00:00
t430.md
t431s.md mainboard/lenovo/t430s: Add ThinkPad T431s as a variant 2018-12-07 11:20:53 +00:00
t431s_bc_removed.jpg mainboard/lenovo/t430s: Add ThinkPad T431s as a variant 2018-12-07 11:20:53 +00:00
t431s_flash_chip.jpg mainboard/lenovo/t430s: Add ThinkPad T431s as a variant 2018-12-07 11:20:53 +00:00
t431s_programming.jpg mainboard/lenovo/t430s: Add ThinkPad T431s as a variant 2018-12-07 11:20:53 +00:00
w530-1.jpg Documentation: Add W530 / T530 2018-11-19 09:34:38 +00:00
w530-2.jpg Documentation: Add W530 / T530 2018-11-19 09:34:38 +00:00
w530.md Documentation: Add W530 / T530 2018-11-19 09:34:38 +00:00
xx20_series.md Documentation: Spell "blob" in lowercase 2018-10-04 09:39:32 +00:00
xx30_series.md Documentation: Spell "blob" in lowercase 2018-10-04 09:39:32 +00:00