Can I get support for more flash devices for the Generic QUAD SPI controller II?

I tried to boot nios application using the Generic Serial Flash Interface Intel FPGA IP Core as you suggested, but the "mem_init_generate" tool does not generate a HEX file for the flash memory as usually does with other type of memory controller core. Do you think this is because there is no NIOS HAL support?

I order to set up the system that i described above I am using a max10 fpga and I have followed the instrunctions on the "AN 730: Nios II Processor Booting

Methods in MAX 10 FPGA Devices" document. I am using the boot option 4 as described to the document but instead of the QSPI controller I tried the Generic Serial Flash Interface Intel FPGA IP Core.