lap-pru22-v3 device tree fail after reboot

[nargetdev]

After following steps here: https://github.com/Yona-Appletree/LEDscape/tree/lap-pru22-v3

for RevC (2015-03-01) I receive error about flattened device tree on reboot. Wonder if anyone has seen similar?

ERROR: Did not find a cmdline Flattened Device Tree