google/storm: support factory reset (wipeout) request

The recovery switch on storm is overloaded: it needs to be pressed for
a certain duration at startup to signal different requests:

  - keeping it pressed for 8 to 16 seconds after startup signals the need for
    factory reset (wipeout);
  - keeping it pressed for longer than 16 seconds signals the need for Chrome
    OS recovery.

This patch adds a function to report the wipeout request status and
enables the new feature on Storm.

BRANCH=storm
BUG=chrome-os-partner:37219

TEST=verified that keeping the recovery button pressed between 8 and
     16 seconds at startup results in the wipeout request generated
     (crossystem 'wipeout_request' returns 1). Keeping the button
     pressed for more than 16 seconds triggers recovery mode.

Change-Id: I17131593e12833866a22837271feb0e6989e6750
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 3c503ec13c2b096d4a21fb299c0dd0396f1d01e9
Original-Change-Id: Ic3678217906e56307d47378fa8a6defeb314084e
Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/259844
Reviewed-on: http://review.coreboot.org/9863
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>

0 files changed, 0 insertions, 0 deletions