For PHY related programming, refer to the Video PHY Controller LogiCORE IP Product Guide (PG230).
The DisplayPort 1.4 RX Subsystem is delivered with a bare-metal driver and API designed to handle all programming of the subsystem core. The driver is automatically available in the AMD Vitis™ tools when a project is created from an XSA file that includes the DisplayPort RX Subsystem. This bare-metal driver and API documentation can also be seen on GitHub . Linux drivers are also available. Refer to the Wiki page for more information.