Hi,
The spi of MC56F84786 is called queued spi instead of quad spi. The QSPI of MC56F84xxx is a normal spi interface,it can interface with 4 pins spi flash, the 4 pins includes sck, /cs, mosi and miso.
Obviously, it can not interface with quad spi flash.
Hope it can help you
BR
XiangJun Rong