In the AM5726 data sheet, section 8.7 discusses setting the PCIe Common Refclk Rx Architecture to Output REFCLK Mode. This mode uses the ljcb_clkn / ljcb_clkp pins as outputs.
I see that near-side termination is required for ljcb_clkn / ljcb_clkp, but How do I set the AM5726 to Output REFCLK Mode so that these 2 pins are outputs?