It is basically still the same DSPI module as it is used on MPC55xx, MPC56xx and MPC57xx.
I can offer you simple DSPI example here, chapter 24:
http://cache.freescale.com/files/32bit/doc/app_note/AN2865.pdf
Also I am attaching example I have written for communication between MPC5676R device (master) and S25FL129P SPI flash memory (slave). Hope it helps