[ltp] T430i support in EFI

Henrique de Moraes Holschuh linux-thinkpad@linux-thinkpad.org
Fri, 6 Sep 2013 10:16:16 -0300

On Thu, 05 Sep 2013, Robin Becker wrote:
> I wasn't aware you could update the EC firmware separately. Does
> thinkpad_ec load for some EC version > 1.07 on the T430 machines?

Lenovo used to issue EC updates separately.  Even if they now bundle
BIOS/EFI+EC in the same download/installer, it is still a separate module.

The ThinkPad EC is a normal, off-the-shelf ACPI EC SoC, although I have no
idea which one is inside the modern thinkpads (and yes, that information
would be very useful).  There are probably at least two different EC
firmware families: one for the real thinkpads that goes way back to 15 years
ago (Yamato planars inside, and another for the generic-chinese-OEM-
planar-inside thinkpads (I don't think they use the same SoCs).

  "One disk to rule them all, One disk to find them. One disk to bring
  them all and in the darkness grind them. In the Land of Redmond
  where the shadows lie." -- The Silicon Valley Tarot
  Henrique Holschuh