/* * $Id: mbx860.c,v 1.2 2007/09/21 03:09:24 quy Exp $ * * Handle mapping of the flash on MBX860 boards * * Author:	Anton Todorov * Copyright:	(C) 2001 Emness Technology *  * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * */#include <linux/module.h>#include <linux/types.h>#include <linux/kernel.h>#include <linux/init.h>#include <asm/io.h>#include <linux/mtd/mtd.h>#include <linux/mtd/map.h>#include <linux/mtd/partitions.h>#define WINDOW_ADDR 0xfe000000#define WINDOW_SIZE 0x00200000/* Flash / Partition sizing */#define MAX_SIZE_KiB              8192#define BOOT_PARTITION_SIZE_KiB    512#define KERNEL_PARTITION_SIZE_KiB 5632#define APP_PARTITION_SIZE_KiB    2048#define NUM_PARTITIONS 3/* partition_info gives details on the logical partitions that the split the * single flash device into. If the size if zero we use up to the end of the * device. */static struct mtd_partition partition_info[]={	{ .name = "MBX flash BOOT partition",	.offset = 0,	.size =   BOOT_PARTITION_SIZE_KiB*1024 },	{ .name = "MBX flash DATA partition",	.offset = BOOT_PARTITION_SIZE_KiB*1024,	.size = (KERNEL_PARTITION_SIZE_KiB)*1024 },	{ .name = "MBX flash APPLICATION partition",	.offset = (BOOT_PARTITION_SIZE_KiB+KERNEL_PARTITION_SIZE_KiB)*1024 }};				   static struct mtd_info *mymtd;struct map_info mbx_map = {	.name = "MBX flash",	.size = WINDOW_SIZE,	.phys = WINDOW_ADDR,	.bankwidth = 4,};int __init init_mbx(void){	printk(KERN_NOTICE "Motorola MBX flash device: 0x%x at 0x%x\n", WINDOW_SIZE*4, WINDOW_ADDR);	mbx_map.virt = (unsigned long)ioremap(WINDOW_ADDR, WINDOW_SIZE * 4);	if (!mbx_map.virt) {		printk("Failed to ioremap\n");		return -EIO;	}	simple_map_init(&mbx_map);	mymtd = do_map_probe("jedec_probe", &mbx_map);	if (mymtd) {		mymtd->owner = THIS_MODULE;		add_mtd_device(mymtd);                add_mtd_partitions(mymtd, partition_info, NUM_PARTITIONS);		return 0;	}	iounmap((void *)mbx_map.virt);	return -ENXIO;}static void __exit cleanup_mbx(void){	if (mymtd) {		del_mtd_device(mymtd);		map_destroy(mymtd);	}	if (mbx_map.virt) {		iounmap((void *)mbx_map.virt);		mbx_map.virt = 0;	}}module_init(init_mbx);module_exit(cleanup_mbx);MODULE_AUTHOR("Anton Todorov <a.todorov@emness.com>");MODULE_DESCRIPTION("MTD map driver for Motorola MBX860 board");MODULE_LICENSE("GPL");