tree 8b60eaeb3367ab683fb15a518e97553b6aa92e68
parent b0ccade87db5b72b0e55b565b1e735526e74d83d
author Adriana Kobylak <anoo@us.ibm.com> 1605128810 -0600
committer Andrew Geissler <geissonator@yahoo.com> 1605575284 -0600

image_types_phosphor: mmc: Fill empty image with zeros

There are errors seeing in the eMMC when the empty space of an
image is filled with 0xff like it's done for NOR chips instead of
0s. Create a function to create empty images with 0s.

Also create an empty image for u-boot of 1MB (twice its current
size) so if the u-boot image that is flashed on a system is
smaller than what the system has, there's no leftover data at
the end that can cause issues.

Tested: Booted the new image-u-boot file on HW.

(From meta-phosphor rev: e4c3d766a0cda490758636f563572152a6ddfaa1)

Change-Id: I27f31f76c38bc256b84cad566afa1e98471695db
Signed-off-by: Adriana Kobylak <anoo@us.ibm.com>
Signed-off-by: Andrew Geissler <geissonator@yahoo.com>