Changing I/O settings from serial port to LCD&keyboard

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http://unix.stackexchange.com – I have a prebuilt image of Linux (uImage-da850-omapl138-evm.bin) from Arago Project. So uImage and root filesystem are situated on SD card of my device (OMAP-L138 Experimenter Kit). After Linux is booted, on the screen of this device I can see a screen saver. But input/output runs through serial port. Thus I can use console by TeraTerm or NVTerminal when device is connected to my PC through serial port. So, how can I change output/input settings? I want to see console output on the LCD (screen) of this device, and give input commands with keyboard (which will be connected directly to the d (HowTos)