#include <linux/module.h>#include <linux/types.h>#include <linux/kernel.h>#include <asm/io.h>#include <linux/mtd/mtd.h>#include <linux/mtd/map.h>#include <linux/mtd/partitions.h>#include <linux/config.h>#define WINDOW_ADDR 0x3000000#define WINDOW_SIZE 0x400000#define BUSWIDTH 1static struct mtd_info *mymtd;__u8 fads_read8(struct map_info *map, unsigned long ofs){	return __raw_readb(map->map_priv_1 + ofs);}__u16 fads_read16(struct map_info *map, unsigned long ofs){	return __raw_readw(map->map_priv_1 + ofs);}__u32 fads_read32(struct map_info *map, unsigned long ofs){	return __raw_readl(map->map_priv_1 + ofs);}void fads_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len){	memcpy_fromio(to, map->map_priv_1 + from, len);}void fads_write8(struct map_info *map, __u8 d, unsigned long adr){	__raw_writeb(d, map->map_priv_1 + adr);	mb();}void fads_write16(struct map_info *map, __u16 d, unsigned long adr){	__raw_writew(d, map->map_priv_1 + adr);	mb();}void fads_write32(struct map_info *map, __u32 d, unsigned long adr){	__raw_writel(d, map->map_priv_1 + adr);	mb();}void fads_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len){	memcpy_toio(map->map_priv_1 + to, from, len);}struct map_info fads_map = {	name: "Intel flash device",	size: WINDOW_SIZE,	buswidth: BUSWIDTH,	read8: fads_read8,	read16: fads_read16,	read32: fads_read32,	copy_from: fads_copy_from,	write8: fads_write8,	write16: fads_write16,	write32: fads_write32,	copy_to: fads_copy_to};/* * MTD PARTITIONING STUFF */static struct mtd_partition fads_partitions[] = {	{name: "kernel(512K)",size: 0x80000,offset: 0x0	},	{name: "user(3584K)",size: 0x380000,offset: 0x80000	}};int __init init_fads(void){       	printk(KERN_NOTICE "Intel flash device: %x at %x\n", WINDOW_SIZE, WINDOW_ADDR);	fads_map.map_priv_1 = (unsigned long)ioremap(WINDOW_ADDR, WINDOW_SIZE);	if (!fads_map.map_priv_1) {		printk("Failed to ioremap\n");		return -EIO;	}	mymtd = do_map_probe("cfi_probe", &fads_map);	if (mymtd) {		mymtd->module = THIS_MODULE;		return add_mtd_partitions(mymtd,fads_partitions,				sizeof(fads_partitions)/				sizeof(struct mtd_partition));	}	iounmap((void *)fads_map.map_priv_1);	return -ENXIO;}static void __exit cleanup_fads(void){	if (mymtd) {		del_mtd_device(mymtd);		map_destroy(mymtd);	}	if (fads_map.map_priv_1) {		iounmap((void *)fads_map.map_priv_1);		fads_map.map_priv_1 = 0;	}}module_init(init_fads);module_exit(cleanup_fads);MODULE_LICENSE("GPL");MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org>");MODULE_DESCRIPTION("Generic configurable MTD map driver");