I am using Raspberry pi CM4 for my project. The Hardware is designed in such a way that i need to redirect all the debug messages coming through serial UART0 to UART4.
I Use U-Boot as a boot loader as it is one of the requirement and the problem is that I am not able to redirect the u-boot console to UART4. I able to see the debug messages through the default UART0 port.
I suppose that just by changing the Base address of the UART port things will come into place. I did some code walk through but was not able to find the needed thing. Where can I find UART config code in U-Boot source?
Has anyone faced a similar issue and found solution? Pls Help. Thanks
The config.txt looks like this:
arm_64bit=1
disable_splash=1
#start_debug=1
kernel=u-boot.bin
enable_uart=1
disable_overscan=1
dtparam=spi=on
dtparam=i2c_arm=on
dtoverlay=uart4
