Mr Zengintas -
As part of the data converter support team, we are not intimately familiar with the ins and outs of the Pandaboard. Typically, a processor just needs to implement the SPI protocol specified in the datasheet for communication with the ADC. You can potentially utilize some of the SPI functions that should be available with the support software for the Pandaboard. It may require reading the documentation to correctly configure the processor (frame size, valid edge, etc) for specific communication with the ADS1278.