[coreboot] Motherboards supporting DDR4

[emanuele]

Hi all,
I'm new to coreboot and I'm looking for a motherboard supporting DDR4.
It would be perfect if it supported both Intel and AMD processors.
I checked at the coreboot board-status page [1].
However, it seems to me that all the motherboards support just DDR3 or 
previous.
Does anyone know if there are compatible motherboards supporting DDR4?

[1] https://coreboot.org/status/board-status.html

Thank you all