Does anybody know how to change the default "debug" port on the UDOO from the microUSB port (UART2) to a different serial port (in this case UART4)? I've had an insanely difficult time trying to figure out how it's done. I know it involves modifying the U-Boot source code, but every time I switch UART2 to UART4 in the "#define CONFIG_UART_BASE_ADDR UART2_BASE_ADDR" line in mx6dl_udoo.h, the UDOO never boots (I assume U-Boot crashes). Does anyone have any ideas? -Jake
Never mind, I figured it out. After editing a few of the source files from both the Kernel and U-Boot source, I got it to work.
