Hi, I'm working with a Raspberry Pi Compute Module 5 and trying to expose a debug UART via GPIO 8/9 (UART3 on RP1).
In Linux this works using: dtoverlay=uart3-pi5 dtoverlay=stdout-uart3 However I cannot get U-Boot console output on these pins. My understanding is that access to these UARTs requires RP1 support through the BCM2712 PCIe root complex, which does not yet appear to be implemented in U-Boot. Is it currently expected that RP1 UARTs cannot be used for the U-Boot console on Pi5 / CM5? Thanks
