libpayload: Make the region to scan for the cb tables configurable.

The address range to scan for the coreboot tables varies from machine to
machine based on the range memory occupies on the SOC being booted and on the
amount of memory installed on the machine. To make libpayload work on
different ARM systems with different needs, this change makes the region to
scan configurable. In the future, we might want to come up with a more
automatic mechanism like on x86, although there's less consistency on ARM as
far as what ranges are even memory in the first place.

Change-Id: Ib50efe25a6152171b0fbd0e324dbc5e89c527d6e
Signed-off-by: Gabe Black <>
Reviewed-by: Gabe Black <>
Tested-by: Gabe Black <>
Commit-Queue: Gabe Black <>
Reviewed-by: Ronald G. Minnich <>
Tested-by: build bot (Jenkins)
2 files changed