I have to configure M4 UART for my custom board,
M40_I2C0_SDA - how to configure the following pin as M4 debug uart for IMX8QM processor.
one can look at board.c file in SCFW and sect.3.13 Debug SCFW Porting Guide (sc_fw_port.pdf)
included in SCFW Porting Kit 1.8.0
Thank you for the reply