[U-Boot-Users] DataFlash Not Found(u-boot 1.1.6)

hi

i have download u-boot 1.1.6 and i have compile it (u-boot.bin) i have some problem  1-how i can compile darrell loader  i have download a darrell loader but when i upload it the following message appear      (DataFlash Not Found)  my dataFlash is SST39VF3201 but i don't know it support it or not