cregit-Linux how code gets into the kernel

Release 4.11 drivers/mtd/maps/ts5500_flash.c

Directory: drivers/mtd/maps
/*
 * 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; }

Contributors

PersonTokensPropCommitsCommitProp
David Woodhouse12495.38%133.33%
Sean Young53.85%133.33%
Jamie Iles10.77%133.33%
Total130100.00%3100.00%


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; } }

Contributors

PersonTokensPropCommitsCommitProp
David Woodhouse4597.83%266.67%
Jamie Iles12.17%133.33%
Total46100.00%3100.00%

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 Technology Systems TS-5500 board");

Overall Contributors

PersonTokensPropCommitsCommitProp
David Woodhouse31295.41%228.57%
Sean Young103.06%114.29%
Jamie Iles20.61%114.29%
Adrian Bunk10.31%114.29%
Tobias Klauser10.31%114.29%
Masanari Iida10.31%114.29%
Total327100.00%7100.00%
Directory: drivers/mtd/maps
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