We're looking into activating the HDMI in component on our custom board. I had expected to be able to re-use the design for the Imageon FMC board as a basis for that, but as it turns out, it's not part of the reference designs in the repository at analogdevicesinc/hdl · GitHub. However, there's no imageon in there. The old XPS based repo had an imageon board reference design, but I think it's a bit outdated.
I'm mostly concerned about the part that links the hdmi_tx to the DMA component.
(PS: I'll bring to the board to the ELCE if you'd like to see it in action)