https://github.com/Xilinx/embeddedsw/tree/master/lib/sw_services/xilisf

• Select Flash Family as below

• Select Flash interface as below

• Library supports SPI PS, QSPI PS, QSPIPSU and OSPIPSV interfaces you must select one of the interfaces at compile time.
• When the user application requests selection of QSPIPS interface during compilation, the QSPI PS or QSPI PSU interface, based on the hardware platform are selected. Similarly,if the SPIPS interface is selected during compilation, SPI PS or SPI PSU interface are selected. If PS OSPI is selected during compilation, OSPIPSV interface is selected.