Run from flash and use flash device driver?

Dear friends ,

I have doubt in Flash programming ,

I want to store the datas in flash and retrive it when needed , I gone thro' nios flash programer tutorial ,

with that i created the target board , My actuall board is already contains (sdram pll , sdram , flash , tristate mux ...) but i have doubt that whether this is my actual design(.bdf) which is downloaded from UP3 (refdesign for cyclone 1c6 ).

so pls tell me how to create basic .bdf file to program flash memory (main problem is assigning pin ..)

if it is available in any site pls send me the link .

Its head breaking for me ,

eagerly waiting for ur reply ,

regards ,

Murugan.b