[U-Boot-Users] Help with serial port set-up for PPC 8540

Hi I am trying to write an Assembly code , just to set-up the UART , so as to send a few characters via the serial port.

I am working on a 8540 Motorola PowerPC . As I am starting right from the scratch I dont have the boot -loader doing the board initializations for me and so have to have my own start.S file to do those .

I just have set-up the necessary registers for UART and as I am not doing any high level coding I havent set up the MMU , TLB etc. But my code doesnt seem to work !!!

I assumed that that CPU would direclty read from the Flash .I am new to this and so I need some advise of what all have to be done during board bring up, or where should I look for such documentation.

Any help would be appreciated .

Thanks Junita

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