sbRIO-9651 supports secondary ethernet port eth1 via external PHY usage which is KSZ9031MNXIA. Is it possible to use another 1GBE PHY, DP83867 for example with MDI register access on Linux RT level? Can uboot and/or linux RT drivers be modified to do so?
could you explain more of your project and what your goals are? It's be helpful to have some context with this question