cr50: add support for building CR50_SQA images

Devices in the lab need to be switched from prepvt to pvt flags. This
change adds a build flag for CR50_SQA. Images built with CR50_SQA have
more capabilities than normal cr50 images, but less than CR50_DEV
images.

SQA images can access the rollback command, updates including
downgrading to images with lower version numbers and mismatched board id
will not be rejected, and the 'bid force_pvt' console command can be
used to set the bid flags to 0. bid force_pvt does not erase flashinfo.
After the board id has been set, we can still change 1 bits to 0, so we
don't need to eraseflashinfo to change the board id flags to 0. This
makes the command a bit safer, because the board id RLZ can't be changed
just the flags. Changing the flags to 0 works for the test team, because
it prevents cr50 from updating to prepvt.

This change also marks rollback as a safe command. CR50_SQA images
aren't automatically open, so if rollback isn't safe, they will have to
go through the open process to change to pvt. Rollback is only included
in DEV and SQA images, so it's ok if it's marked safe. It's understood
these images aren't supposed to be used on regular devices. They're just
for special development and test environments.

NEW PROCESS FOR SQA:
- update to sqa image
- run 'bid force_pvt'
- flash pvt image
- run rollback

BRANCH=cr50
BUG=b:126618143
TEST=run sqa process

Change-Id: Ia713274830c9e19cdb3ccafa87849c160d667683
Signed-off-by: Mary Ruthven <mruthven@google.com>
Reviewed-on: https://chromium-review.googlesource.com/1529834
Commit-Ready: Mary Ruthven <mruthven@chromium.org>
Tested-by: Mary Ruthven <mruthven@chromium.org>
Reviewed-by: Keith Short <keithshort@chromium.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/util/getversion.sh b/util/getversion.sh
index 3fc74b7c39..552f2d9bf0 100755
--- a/util/getversion.sh
+++ b/util/getversion.sh
@@ -89,7 +89,7 @@ main() {
   local ver
 
   IFS="${dc}"
-  ver="${CR50_DEV:+DBG/}${BOARD}_"
+  ver="${CR50_SQA:+SQA/}${CR50_DEV:+DBG/}${BOARD}_"
   tool_ver=""
   global_dirty=    # set if any of the component repos is 'dirty'.
   dir_list=( . )   # list of component directories, always includes the EC tree