#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/mman.h>

int main(int argc, char **argv)
{
	int fd;
	unsigned long addr;
	int debug=0;
	int pagesize;
	void *map;
	unsigned int *i1,*i2;

	pagesize=getpagesize();

	addr=0x40e00000;
	if (debug)
		printf("ok addr=0x%lx\n",addr);
	fd=open("/dev/mem",O_RDWR);

	map=mmap(NULL, pagesize*4096, PROT_READ|PROT_WRITE, MAP_SHARED, fd, addr);
	close(fd);
	i1=map+0x1c;
	i2=map+0x28;
	*i2=0x4000000;
	usleep(10000);
	*i1=0x4000000;
	usleep(100000);
	*i2=0x4000000;
	usleep(10000);
	*i1=0x40000000;
	usleep(10000);
	*i2=0x8000000;
	usleep(10000);
	*i1=0x8000000;
	usleep(10000);
	*i2=0x8000000;
	return 0;
}