tree 46673fe5ede80d31e2dc8c4cee75297ebb25f03a
parent e56bf8785f0831e2210371296b70b6085f36f56e
author Lei YU <yulei.sh@bytedance.com> 1639137798 +0800
committer Lei YU <yulei.sh@bytedance.com> 1647236916 +0800

dual-image: Detect the running image slot

Add detect-slot-aspeed to detect which slot it is running on, and
assign the member variable, which will be used in future commits.

Tested:
    * In normal case, verify the primary slot is 0 and secondary slot
      is 1.
    * Manually assign value 1 in /run/media/slot, and verify the slot
      number is reversed.
    * Manually trigger wdt2 timeout and verify in secondary flash that
      the slot number is correct, that the running slot is 1 and the
      other slot is 0.

Signed-off-by: Lei YU <yulei.sh@bytedance.com>
Change-Id: I69edb1961b4c4bb79e7897c38b9ce8dded42f829