anyone using barebox instead of u-boot on an xM?

i'm still trying to figure out whether one can use barebox on an xM
instead of u-boot. this section:

suggests it can be done, but it doesn't make it clear that that works
for an xM.

  over at the barebox wiki, there's an OMAP page:

but again it doesn't specifically mention the xM. has anyone tried
this and got it to work?