[U-Boot] Chain-loading u-boot stopped working between 2016.01-rc1 and 2016.01-rc4

[Pavel Machek]

Hi!

I'm loading u-boot using tftp from u-boot 2013.01. Marek will claim
that this configuration is unsupported, but it enables fairly quick
development and was very useful for me in past.

Unfortunately, it stopped working between 2016.01-rc1 and -rc4. Before
I start bisecting it, I wanted to ask if someone has idea what might
be responsible?
									
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html