Hooks are the functions that can be defined by you. FSBL provides blank functions and executes them from certain strategic locations. The following table shows the currently available hooks.
|Hook Function Name
|Before PL bitstream loading
|After PL bitstream loading
|Before (the first) Handoff (to any application)
|To add more initialization code, in addition to that in psu_init or to replace psu_init with custom initialization
See FSBL wiki page for more information on FSBL.