Few months ago I designed a circuit based on CM3L. It was devised to use both UARTs on GPIOs 14/15 and 32/33 (both pairs can be UART0 or UART1). Now my client is using UARTO on GPIOs 14/15 for communicating with a microcontroller. Now they are asking me to enable the sencond UART that was placed with the purpose of serving as serial debug port (Linux console).
Is it possible to use UART1 as Linux console instead of UART0? If so... What should I do to remap UARTs in GPIOs, enable both UARTs, enable Linux console and route it to UART1? If possible all done in device tree and "/boot" config files better than using raspi-config and gpio utility.