tree cb22fd0d0f834f019802e486f4248faec991fbe0
parent d011590599fd02f8833e4776032ebcf289e71f4f
author Adriana Kobylak <anoo@us.ibm.com> 1605128810 -0600
committer Brad Bishop <bradleyb@fuzziesquirrel.com> 1605533732 +0000

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.

Change-Id: Ifc08b4e6a61fc52bbb37f13a0b02b2741a359997
Signed-off-by: Adriana Kobylak <anoo@us.ibm.com>