SPRUIM2H May 2020 – October 2023 AM2431 , AM2432 , AM2434 , AM6411 , AM6412 , AM6421 , AM6422 , AM6441 , AM6442
The loopback path when PCIe subsystem is loopback initiator is:
PCIe subsystem (loopback initiator) -> PIPE (TX) -> PCIe Link -> Loopback -> PCIe Link -> PIPE (RX) -> PCIe subsystem