I have three board setup according to the picture pasted below. I have a control board which integrates a nxp processor, a backplane and an Nvidia AGX Xavier module. I would like to connect the Xavier module with the processor via a backplane SGMII link. The Xvaier module only have a RGMII interface.Because of this, i would use a Marvell 88e1512 phy(like in the devboard) to do the rgmii->sgmii conversion.
My question is that, what and how should I edit the linux device tree nodes to get this setup work? Or is there any linux nvidia documentation or application note about this topic?
Thanks for the answers in advance!