ifdtool: handle region masks correctly

The get_region() function was using fixed masks for
the base and limit. However, newer descriptors (on
skylake, e.g.) use a 15-bit mask -- not a 12-bit one.
Choose the right mask based on ifd_version.

BUG=chrome-os-partner:43461
BRANCH=None
TEST=Built glados bootimage.

Original-Change-Id: Ibcbfd649a561d36b17ea2cc8fbeb30ffdbbb2c96
Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/293250
Original-Reviewed-by: Duncan Laurie <dlaurie@chromium.org>

Change-Id: I7f2ef9fb8e5b6c7114225fecc2798668d6507ac3
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/11229
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
1 file changed