AM2732: How to configure MIBSPI for 8bit parallel, Max clock speed to interface to FPGA.

I would like to interface between CPU and FPGA via MIBSPI as fast as possible.

However I don't understand exactly in CCS sysconfiguration.

   - Clock Frequency (default 5000000) -> can I increase 25000000 with maximum?

   - Pin Mode (4 Pin Mode with CS ) -> is it possible to configure as CLK, CS, 8bit MISO, 8bit MOSI?

                                                              If it possible, how can I configure in sysconfig of CCS ?

                                                              ( I had seen only four IOs in CCS )