We provide several device-specific variants of the core set of flash services:
For example, if you have a 16-bit Intel device and you want to use f3s_v2erase(), you'd use the f3s_iCFI_v2erase() routine.
For more information, see the technical note Choosing the correct MTD Routine for the Flash Filesystem.
bsp_working_dir/src/hardware/flash/mtd-flash/public/sys/f3s_mtd.h.