Running JFFS on ep8260 board

[Kasturi Raghunath]

Hi
  I am new to Linux. I am trying to run JFFS2 on embedded planet 8260 board.
The board has 16M flash. There are 4 flash chips and size of each flash is
4M. According to the manual the flash chips are CFI  compliant. When I run
the linux with flash driver enabled I get the following error:

physmap flash device : 1000000 at ff000000
CFI: Found no Physically mapped flash device at location zero