GPIO driver for DM365 Leopard board to write on GPIO 47

#include <linux/init.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/ioport.h>
#include <linux/delay.h>
#include <linux/kthread.h>
#include <linux/fs.h>
#include <linux/timer.h>
#include <asm/io.h>
#include <asm-arm/arch-davinci/mux.h>
#include <asm/arch/gpio.h>

#define DAVINCI_SYSTEM_MODULE_BASE        0x01c40000
#define DAVINCI_GPIO_BASE                                  0x01C67000

u32 gpio = 47;

static int __init GIO47_init(void)

  {
        davinci_cfg_reg(DM365_GPIO47, PINMUX_FREE);
        davinci_cfg_reg(DM365_GPIO47, PINMUX_RESV);

        /* Configure GPIO20 as an output */
        gpio_direction_output(47, 0);
        gpio_set_value(47, 1);

  //  printk(KERN_INFO "GIO%d: %d\n", gpio, __gpio_get(gpio) );
    printk(KERN_INFO "GIO47 Module Loaded\n");

    return 0;
}

static void __exit GIO47_exit(void)
{
    printk(KERN_INFO "GIO%d: %d\n", gpio, gpio_get_value(gpio) );
    printk(KERN_INFO "GIO47 Module exit\n");
}

/* init and exit functions */
module_init(GIO47_init);
module_exit(GIO47_exit);

MODULE_LICENSE("GPL");

But Its not working at all.

Could any body suggest me how to make it work?

AS I am struggling a lot.

Thanks in advance.