tree 8c881cf1c5f9c007acef06c48942b0cd4a1e90f3
parent 27959d16d88b9937dc0d3a8863e53df6569a3f46
author Jan Kundrát <kundrat@cesnet.cz> 1565179875 +0200
committer Jan Kundrát <kundrat@cesnet.cz> 1565185284 +0200

BeagleBone Black: let the default FW "boot from the SD card"

I just don't want to hold that button at each power-up, and I have not
added support for flashing to eMMC yet. The default, preinstalled
bootlaoder tries to read uEnv.txt from the SDD card's boot partition and
execute `uenvcmd` from there, so let's make it happy and adapt
ourselves.

The default U-Boot installed on-device (2015.01-00001-gb2412df) doesn't
define ${scriptaddr}, so we have to provide it if we want our launchers
to succeed.

Change-Id: I50dc5177f4dd16435d4f5d17908db938e4cc5c3c