tree 93fd04c7123a3c2830810efbfd4d3ae787448159
parent d980584fed8a12d644f60ac0adaffc55e3c51b8b
author Lokesh Vutla <lokeshvutla@ti.com> 1535365631 +0530
committer Tom Rini <trini@konsulko.com> 1536669175 -0400

arm: K3: am654: Add support for boot device detection

AM654 allows for booting from primary or backup boot media.
Both media can be chosen individually based on switch settings.
ROM looks for a valid image in primary boot media, if not found
then looks in backup boot media. In order to pass this boot media
information to boot loader, ROM stores a value at a particular
address. Add support for reading this information and determining
the boot media correctly.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>
Signed-off-by: Vignesh R <vigneshr@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>