[U-Boot] Change console output from DUART to APPUART

Hi,

I'm new to this list and don't know whether this is the right place to ask this question.

I have a board nearly equal to the mx28evk, excepting that I need to use AUART3 instead of DUART for the console output.

My idea was to simply to change CONFIG_PL01x_PORTS in the board configuration from MXS_UARTDBG_BASE to MXS_UARTAPP3_BASE and keep the CONFIG_CONS_INDEX at 0. But this isn't working.

Now, i have no idea how to continue.

I searched the documentation, the source code and the internet for days, but I can't find any useful solution. Maybe someone can give me a clue how to solve this issue.

Thanks!

Matt