Hello,
The SERDES registers are undocumented and the PCIe registers are a work-in-progress in the latest AM6442 TRM. Because of this, I am unsure of how best to enable the use of the external reference clock for PCIe. I see the use of serdes_refclk as ext_ref_clk in the serdes_wiz0 driver and I've set serdes_refclk's clock-frequency node to our ref clock frequency. Can TI provide steps to enable the use of the reference clock in the latest Linux SDK?
Thanks,
Matt McKee