The Linaro kernels ("Linaro Stable Kernel" is the keyphrase) boot from devicetrees (aka FDTs). Not sure how much of that is upstreamed, but devicetrees are pretty standard in the ARM world as far as I can tell. (Also, in general if you're doing Linux stuff on ARM, Linaro is the place to look for everything).
Edit: actually, that link isn't very relevant - I just lazily googled "linaro devicetree". But you should be able to find more info!
I'm a debian kinda guy and have been playing with both debian and mainline kernels, and haven't come across it yet, it may be that the ARM maintainers keep it on a separate branch for now.
I'll investigate Linaro at some point, if that's more of a hotbed of ARM development.
The Linaro kernels ("Linaro Stable Kernel" is the keyphrase) boot from devicetrees (aka FDTs). Not sure how much of that is upstreamed, but devicetrees are pretty standard in the ARM world as far as I can tell. (Also, in general if you're doing Linux stuff on ARM, Linaro is the place to look for everything).
Edit: actually, that link isn't very relevant - I just lazily googled "linaro devicetree". But you should be able to find more info!