How to set the GPMC to SRAM Asyn interface under Linux 2.6

I am trying to set a system for interfacing an FPGA via the 16bit bus of the GPMC. The OMAP runs Linux 2.6-31

For simplicity, I choosed the Asynronous interface on CS4

How do I set the CS area to behave as Asynronous SRAM like interfacing?

Ran