For those wanting to bring Wayland to proprietary/embedded platforms, Pekka Paalanen has written a long and detailed technical post about doing so.
Pekka Paalanen's post about supporting Wayland GL clients and proprietary embedded platforms is outlined on his BlogSpot page
. His text already makes the assumptions you have a way to implement a Wayland compositor, and APIs for compositing and displaying images. Plus Wayland is mostly centered around OpenGL ES and EGL usage. Pekka's post goes into detail about hardware-accelerated clients and handling buffer sharing with Wayland.