trunks_send: make sure update addresses increase monotonously
A recent Cr50 firmware change rejects attempts to write into the flash
at addresses which are below any address which was written in the last
minute.
This presents a problem on devices which run RO_A and RW_B: the
updater sends the RO first (which is RW_B), and then tries to send
RW_A, but the base address of RW_A is below the address range of RO_B,
so the RW portion of the update is rejected.
The solution is to send the section with the lower addresses first,
which is accomplished by this patch.
BUG=b:35580805
TEST=verified successful updates with various combinations of
currently active RO and RW sections.
Change-Id: Iadc6c35e6fbbb1ca1d707a1fc17ab5d041773032
Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/497519
Reviewed-by: Nicolas Boichat <drinkcat@chromium.org>
1 file changed
