Custom Flash is not supported in Altera Qsys 12.0

Have been developing FPGA and NIOS-based SW for DE2-115 using USB blaster to load SOF and elf files for debugging.

Now want to permanently program FPGA and FLASH. Have been able to load POF into FPGA. Can execute NIOS SW from SDRAM. However, it fails to execute when I try to flash it. Following is the process I've used.

But in Custom Flash is not supported in Altera Qsys 12.0 ???

i have tried for Flash_generic_tristate_controller

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tristate_conduit_pin_sharer

^

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tristate conduit bridge

but it is not taken as a memory

i have given the flowwing in bsp editor also

Nios II cannot boot up

1. reset -> CFI flash

2. exception -> SDRAM

3. Linker setting: .bss .heap .rodata .rwdata .stack .txt => SDRAM