/* * ts5500_flash.c -- MTD map driver for Technology Systems TS-5500 board * * Copyright (C) 2004 Sean Young <sean@mess.org> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA * * Note: * - In order for detection to work, jumper 3 must be set. * - Drive A and B use a proprietary FTL from General Software which isn't  *   supported as of yet so standard drives can't be mounted; you can create  *   your own (e.g. jffs) file system. * - If you have created your own jffs file system and the bios overwrites  *   it during boot, try disabling Drive A: and B: in the boot order. * * $Id: ts5500_flash.c,v 1.1 2004/09/20 15:33:26 sean Exp $ */#include <linux/config.h>#include <linux/module.h>#include <linux/types.h>#include <linux/kernel.h>#include <linux/init.h>#include <linux/mtd/mtd.h>#include <linux/mtd/map.h>#ifdef CONFIG_MTD_PARTITIONS#include <linux/mtd/partitions.h>#endif#define WINDOW_ADDR	0x09400000#define WINDOW_SIZE	0x00200000static struct map_info ts5500_map = {	.name = "TS-5500 Flash",	.size = WINDOW_SIZE,	.bankwidth = 1,	.phys = WINDOW_ADDR};#ifdef CONFIG_MTD_PARTITIONSstatic struct mtd_partition ts5500_partitions[] = {	{		.name = "Drive A",		.offset = 0,		.size = 0x0e0000	},	{		.name = "BIOS",		.offset = 0x0e0000,		.size = 0x020000,	},	{		.name = "Drive B",		.offset = 0x100000,		.size = 0x100000	}};#define NUM_PARTITIONS (sizeof(ts5500_partitions)/sizeof(struct mtd_partition))#endifstatic struct mtd_info *mymtd;static int __init init_ts5500_map(void){	int rc = 0;	ts5500_map.virt = (void*)ioremap_nocache(ts5500_map.phys, ts5500_map.size);	if(!ts5500_map.virt) {		printk(KERN_ERR "Failed to ioremap_nocache\n");		rc = -EIO;		goto err_out_ioremap;	}	simple_map_init(&ts5500_map);	mymtd = do_map_probe("jedec_probe", &ts5500_map);	if(!mymtd)		mymtd = do_map_probe("map_rom", &ts5500_map);	if(!mymtd) {		rc = -ENXIO;		goto err_out_map;	}	mymtd->owner = THIS_MODULE;#ifdef CONFIG_MTD_PARTITIONS	add_mtd_partitions(mymtd, ts5500_partitions, NUM_PARTITIONS);#else		add_mtd_device(mymtd);#endif	return 0;err_out_map:	map_destroy(mymtd);err_out_ioremap:	iounmap((void *)ts5500_map.virt);	return rc;}static void __exit cleanup_ts5500_map(void){	if (mymtd) {#ifdef CONFIG_MTD_PARTITIONS		del_mtd_partitions(mymtd);#else		del_mtd_device(mymtd);#endif		map_destroy(mymtd);	}	if (ts5500_map.virt) {		iounmap((void *)ts5500_map.virt);		ts5500_map.virt = 0;	}}module_init(init_ts5500_map);module_exit(cleanup_ts5500_map);MODULE_LICENSE("GPL");MODULE_AUTHOR("Sean Young <sean@mess.org>");MODULE_DESCRIPTION("MTD map driver for Techology Systems TS-5500 board");