Hello,
I have a Rock 4C+ and need to use UART2 communicating with an external board, so I switched the kernel to not use it, but U-Boot stil use it and if I boot up the rock with the wires linked it won’t boot up, hanging at the cli with prompt ‘=>’.
Is there a way to switching u-boot using video console instead of serial?
I can’t use UART4 because i need it too.
Thanks