On Fri, 2 Dec 2011, Stephen Warren wrote:

quoted

For the record, the changes are now in U-Boot master:

d510859 image: Don't detect XIP images as overlapping.
b9b50e8 image: Implement IH_TYPE_KERNEL_NOLOAD

Yay!  Thank you Stephen for driving this to a successful resolution.

Of course, boards won't be updated to the latest u-boot right away

Though we should demand it on the new boards at least.

, nor
will the enhanced mkimage tool be commonly available.

Why not, just tell people to use up-to-date tools, otherwise you can't support 
them. It's really easy.

quoted

I should also note that Marek Vasut posted some patches to implement a
bootz command in U-Boot. This turned out to be much less invasive than
I originally thought, so once those patches are finalized, uImage might
be irrelevant except for initrds (U-Boot already accepts a raw FDT
without uImage wrapping for bootm and hence bootz).

http://www.mail-archive.com/u-boot at lists.denx.de/msg69287.html

Excellent!

Nico, please see my other mail. This is really going to 2012.03 release 
earliest. 2011.12 release is definitelly missed, sorry.

Nicolas

M