/* * 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. * * $Id: ts5500_flash.c,v 1.5 2005/11/07 11:14:28 gleixner Exp $ */ #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; add_mtd_partitions(mymtd, ts5500_partitions, NUM_PARTITIONS); return 0; err1: map_destroy(mymtd); iounmap(ts5500_map.virt); err2: return rc; } static void __exit cleanup_ts5500_map(void) { if (mymtd) { del_mtd_partitions(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");