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36b39b5fc9
Usually CR50 TPM reset happens when the AP reboots, the CR50 RO does
not get a chance to run in this case, so the running RW does not
change either,
Once the idle RW section was updated, the only way to start it is to
reboot the CR50 completely, Rebooting CR50 causes the whole system
reset, so it should not be happening at random moments in time.
This patch introduces a mechanism to delay reboot to the moment when
the TPM is reset. The reboot request would be posted in the end of the
update, and then the AP would reboot, triggering a TPM reboot, which
in turn would trigger the CR50 reset.
The USB update handler now posts the reboot request instead of
triggering the reboot immediately.
BRANCH=none
BUG=chrome-os-partner:58226
TEST=with the rest of the patches applied verified that the system
gets reset and the new image version kicks in on both gru (over
SPI) and reef (over USB).
Change-Id: Iff859f2e7a48c5035a27fffd17aefe7e318af569
Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/395627
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
For an overview of the Embedded Controller firmware, refer to http://www.chromium.org/chromium-os/2014-firmware-summit For instructions on building from source, refer to http://www.chromium.org/chromium-os/ec-development/getting-started-building-ec-images-quickly