[coreboot-gerrit] Change in coreboot[master]: cr50: check if the new image needs to be enabled and act on it

[Vadim Bendebury (Code Review)]

Hello Aaron Durbin, Duncan Laurie, Paul Menzel, build bot (Jenkins), Furquan Shaikh,

I'd like you to reexamine a change.  Please visit

    https://review.coreboot.org/18946

to look at the new patch set (#3).

Change subject: cr50: check if the new image needs to be enabled and act on it
......................................................................

cr50: check if the new image needs to be enabled and act on it

The AP sends the Cr50 a request to enable the new firmware image. If
the new Cr50 image was found and enabled, the AP expects the Cr50 to
reset the device in 1 second.

While waiting for the Cr50 to reset, the AP logs a newly defined event
and calls halt() to shut the system down for a graceful reboot.

BRANCH=gru,reef
BUG=b:35580805
TEST=built a reef image, observed that in case cr50 image is updated,
     after the next reboot the AP stops booting before loading depthcharge,
     reports upcoming reset and waits for it.

     Once the system is booted after that, the new event can be found
     in the log:

  localhost ~ # mosys eventlog list
  ...
  7 | 2017-03-23 18:42:12 | Chrome OS Developer Mode
  8 | 2017-03-23 18:42:13 | Unknown | 0xac
  9 | 2017-03-23 18:42:21 | System boot | 46
  ...

Change-Id: I45fd6058c03f32ff8edccd56ca2aa5359d9b21b1
Signed-off-by: Vadim Bendebury <vbendeb at chromium.org>
---
M src/include/elog.h
M src/vendorcode/google/chromeos/Makefile.inc
A src/vendorcode/google/chromeos/cr50_enable_update.c
3 files changed, 61 insertions(+), 0 deletions(-)


  git pull ssh://review.coreboot.org:29418/coreboot refs/changes/46/18946/3
-- 
To view, visit https://review.coreboot.org/18946
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Gerrit-MessageType: newpatchset
Gerrit-Change-Id: I45fd6058c03f32ff8edccd56ca2aa5359d9b21b1
Gerrit-PatchSet: 3
Gerrit-Project: coreboot
Gerrit-Branch: master
Gerrit-Owner: Vadim Bendebury <vbendeb at chromium.org>
Gerrit-Reviewer: Aaron Durbin <adurbin at chromium.org>
Gerrit-Reviewer: Duncan Laurie <dlaurie at chromium.org>
Gerrit-Reviewer: Furquan Shaikh <furquan at google.com>
Gerrit-Reviewer: Paul Menzel <paulepanter at users.sourceforge.net>
Gerrit-Reviewer: Vadim Bendebury <vbendeb at chromium.org>
Gerrit-Reviewer: build bot (Jenkins)