[mirror_ubuntu-zesty-kernel.git] / drivers / mtd / maps / sharpsl-flash.c

/*
 * sharpsl-flash.c
 *
 * Copyright (C) 2001 Lineo Japan, Inc.
 * Copyright (C) 2002  SHARP
 *
 * based on rpxlite.c,v 1.15 2001/10/02 15:05:14 dwmw2 Exp
 *          Handle mapping of the flash on the RPX Lite and CLLF boards
 *
 * 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.
 *
 */

#include <linux/module.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/map.h>
#include <linux/mtd/partitions.h>
#include <asm/io.h>
#include <asm/mach-types.h>

#define WINDOW_ADDR 0x00000000
#define WINDOW_SIZE 0x00800000
#define BANK_WIDTH 2

static struct mtd_info *mymtd;

struct map_info sharpsl_map = {
	.name = "sharpsl-flash",
	.size = WINDOW_SIZE,
	.bankwidth = BANK_WIDTH,
	.phys = WINDOW_ADDR
};

static struct mtd_partition sharpsl_partitions[1] = {
	{
		name:		"Boot PROM Filesystem",
	}
};

static int __init init_sharpsl(void)
{
	struct mtd_partition *parts;
	int nb_parts = 0;
	char *part_type = "static";

	printk(KERN_NOTICE "Sharp SL series flash device: %x at %x\n",
		WINDOW_SIZE, WINDOW_ADDR);
	sharpsl_map.virt = ioremap(WINDOW_ADDR, WINDOW_SIZE);
	if (!sharpsl_map.virt) {
		printk("Failed to ioremap\n");
		return -EIO;
	}

	simple_map_init(&sharpsl_map);

	mymtd = do_map_probe("map_rom", &sharpsl_map);
	if (!mymtd) {
		iounmap(sharpsl_map.virt);
		return -ENXIO;
	}

	mymtd->owner = THIS_MODULE;

	if (machine_is_corgi() || machine_is_shepherd() || machine_is_husky()
		|| machine_is_poodle()) {
		sharpsl_partitions[0].size=0x006d0000;
		sharpsl_partitions[0].offset=0x00120000;
	} else if (machine_is_tosa()) {
		sharpsl_partitions[0].size=0x006a0000;
		sharpsl_partitions[0].offset=0x00160000;
	} else if (machine_is_spitz() || machine_is_akita() || machine_is_borzoi()) {
		sharpsl_partitions[0].size=0x006b0000;
		sharpsl_partitions[0].offset=0x00140000;
	} else {
		map_destroy(mymtd);
		iounmap(sharpsl_map.virt);
		return -ENODEV;
	}

	parts = sharpsl_partitions;
	nb_parts = ARRAY_SIZE(sharpsl_partitions);

	printk(KERN_NOTICE "Using %s partition definition\n", part_type);
	add_mtd_partitions(mymtd, parts, nb_parts);

	return 0;
}

static void __exit cleanup_sharpsl(void)
{
	if (mymtd) {
		del_mtd_partitions(mymtd);
		map_destroy(mymtd);
	}
	if (sharpsl_map.virt) {
		iounmap(sharpsl_map.virt);
		sharpsl_map.virt = 0;
	}
}

module_init(init_sharpsl);
module_exit(cleanup_sharpsl);

MODULE_LICENSE("GPL");
MODULE_AUTHOR("SHARP (Original: Arnold Christensen <AKC@pel.dk>)");
MODULE_DESCRIPTION("MTD map driver for SHARP SL series");
Commit	Line	Data
1da177e4 LT	1	/*
1da177e4 LT	2	* sharpsl-flash.c
69f34c98	3	*
1da177e4 LT	4	* Copyright (C) 2001 Lineo Japan, Inc.
	5	* Copyright (C) 2002 SHARP
	6	*
1da177e4 LT	7	* based on rpxlite.c,v 1.15 2001/10/02 15:05:14 dwmw2 Exp
	8	* Handle mapping of the flash on the RPX Lite and CLLF boards
	9	*
	10	* This program is free software; you can redistribute it and/or modify
	11	* it under the terms of the GNU General Public License as published by
	12	* the Free Software Foundation; either version 2 of the License, or
	13	* (at your option) any later version.
	14	*
	15	* This program is distributed in the hope that it will be useful,
	16	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	17	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	18	* GNU General Public License for more details.
	19	*
	20	*/
	21
	22	#include <linux/module.h>
	23	#include <linux/types.h>
	24	#include <linux/kernel.h>
1da177e4 LT	25	#include <linux/mtd/mtd.h>
	26	#include <linux/mtd/map.h>
	27	#include <linux/mtd/partitions.h>
ba380698 RP	28	#include <asm/io.h>
ba380698 RP	29	#include <asm/mach-types.h>
1da177e4 LT	30
1da177e4 LT	31	#define WINDOW_ADDR 0x00000000
ba380698	32	#define WINDOW_SIZE 0x00800000
1da177e4 LT	33	#define BANK_WIDTH 2
	34
	35	static struct mtd_info *mymtd;
	36
	37	struct map_info sharpsl_map = {
	38	.name = "sharpsl-flash",
	39	.size = WINDOW_SIZE,
	40	.bankwidth = BANK_WIDTH,
	41	.phys = WINDOW_ADDR
	42	};
	43
	44	static struct mtd_partition sharpsl_partitions[1] = {
	45	{
ba380698	46	name: "Boot PROM Filesystem",
1da177e4 LT	47	}
	48	};
	49
26eb1085	50	static int __init init_sharpsl(void)
1da177e4 LT	51	{
	52	struct mtd_partition *parts;
	53	int nb_parts = 0;
	54	char *part_type = "static";
	55
69f34c98	56	printk(KERN_NOTICE "Sharp SL series flash device: %x at %x\n",
8f5a4486	57	WINDOW_SIZE, WINDOW_ADDR);
1da177e4 LT	58	sharpsl_map.virt = ioremap(WINDOW_ADDR, WINDOW_SIZE);
	59	if (!sharpsl_map.virt) {
	60	printk("Failed to ioremap\n");
	61	return -EIO;
	62	}
ba380698 RP	63
	64	simple_map_init(&sharpsl_map);
	65
1da177e4 LT	66	mymtd = do_map_probe("map_rom", &sharpsl_map);
	67	if (!mymtd) {
	68	iounmap(sharpsl_map.virt);
	69	return -ENXIO;
	70	}
	71
	72	mymtd->owner = THIS_MODULE;
	73
69f34c98	74	if (machine_is_corgi() \|\| machine_is_shepherd() \|\| machine_is_husky()
8f5a4486	75	\|\| machine_is_poodle()) {
ba380698 RP	76	sharpsl_partitions[0].size=0x006d0000;
	77	sharpsl_partitions[0].offset=0x00120000;
	78	} else if (machine_is_tosa()) {
	79	sharpsl_partitions[0].size=0x006a0000;
	80	sharpsl_partitions[0].offset=0x00160000;
62052d42	81	} else if (machine_is_spitz() \|\| machine_is_akita() \|\| machine_is_borzoi()) {
ba380698 RP	82	sharpsl_partitions[0].size=0x006b0000;
ba380698 RP	83	sharpsl_partitions[0].offset=0x00140000;
8f5a4486 RP	84	} else {
8f5a4486 RP	85	map_destroy(mymtd);
69f34c98	86	iounmap(sharpsl_map.virt);
8f5a4486 RP	87	return -ENODEV;
8f5a4486 RP	88	}
69f34c98	89
1da177e4	90	parts = sharpsl_partitions;
87d10f3c	91	nb_parts = ARRAY_SIZE(sharpsl_partitions);
1da177e4	92
8e2537e4	93	printk(KERN_NOTICE "Using %s partition definition\n", part_type);
1da177e4 LT	94	add_mtd_partitions(mymtd, parts, nb_parts);
	95
	96	return 0;
	97	}
	98
	99	static void __exit cleanup_sharpsl(void)
	100	{
	101	if (mymtd) {
	102	del_mtd_partitions(mymtd);
	103	map_destroy(mymtd);
	104	}
	105	if (sharpsl_map.virt) {
	106	iounmap(sharpsl_map.virt);
	107	sharpsl_map.virt = 0;
	108	}
	109	}
	110
	111	module_init(init_sharpsl);
	112	module_exit(cleanup_sharpsl);
	113
	114	MODULE_LICENSE("GPL");
	115	MODULE_AUTHOR("SHARP (Original: Arnold Christensen <AKC@pel.dk>)");
	116	MODULE_DESCRIPTION("MTD map driver for SHARP SL series");