I am developing a RS485 UART driver for RZA1H RSK. For this UART signals are required to be coming out of RSK. Three signals are required UART RX, UART TX and one GPIO pin that can be used as TX enable.
1. Are there pins available on the board which can be used as UART RX, TX and TX enable signals.
2. Are these pins multiplexed with any other signal? How to configure it to be used for UART RX , TX and GPIO.
3. Does the device tree needs to be changed for setting the pin mux value?