Last time I posted an issue on Github, l3iggs told me he was moving to some other place and his stuff was in a box container somewhere in the middle of the ocean.
It might be a while before l3iggs is actually available to help you out
I wasn't even able to push the u-boot into ram while in burn mode.
What you get with printenv command on new u-boot running in ram?
You can help me buy new work notebook with paypal donation, after 8 years it's time to upgrade. https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=FLVT7ACMYAPS6