text: /*
   * 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 the resident flash disk (RFD) flash translation layer.
   * - 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.
   */
  
  #include <linux/init.h>
  #include <linux/module.h>
  #include <linux/kernel.h>
  #include <linux/mtd/map.h>
  #include <linux/mtd/mtd.h>
  #include <linux/mtd/partitions.h>
  #include <linux/types.h>
  
  
  #define WINDOW_ADDR	0x09400000
  #define WINDOW_SIZE	0x00200000
  
  static struct map_info ts5500_map = {
  	.name = "TS-5500 Flash",
  	.size = WINDOW_SIZE,
  	.bankwidth = 1,
  	.phys = WINDOW_ADDR
  };
  
  static 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 ARRAY_SIZE(ts5500_partitions)
  
  static struct mtd_info *mymtd;
  
  static int __init init_ts5500_map(void)
  {
  	int rc = 0;
  
  	ts5500_map.virt = ioremap_nocache(ts5500_map.phys, ts5500_map.size);
  
  	if (!ts5500_map.virt) {
  		printk(KERN_ERR "Failed to ioremap_nocache\n");
  		rc = -EIO;
  		goto err2;
  	}
  
  	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 err1;
  	}
  
  	mymtd->owner = THIS_MODULE;
  	mtd_device_register(mymtd, ts5500_partitions, NUM_PARTITIONS);
  
  	return 0;
  
  err1:
  	iounmap(ts5500_map.virt);
  err2:
  	return rc;
  }
  
  static void __exit cleanup_ts5500_map(void)
  {
  	if (mymtd) {
  		mtd_device_unregister(mymtd);
  		map_destroy(mymtd);
  	}
  
  	if (ts5500_map.virt) {
  		iounmap(ts5500_map.virt);
  		ts5500_map.virt = NULL;
  	}
  }
  
  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");
  
  