1/*
2 *	pnc2000.c - mapper for Photron PNC-2000 board.
3 *
4 * Copyright (C) 2000 Crossnet Co. <info@crossnet.co.jp>
5 *
6 * This code is GPL
7 *
8 * $Id: pnc2000.c,v 1.1.1.1 2007/08/03 18:52:44 Exp $
9 */
10
11#include <linux/module.h>
12#include <linux/types.h>
13#include <linux/kernel.h>
14#include <linux/init.h>
15
16#include <linux/mtd/mtd.h>
17#include <linux/mtd/map.h>
18#include <linux/mtd/partitions.h>
19
20
21#define WINDOW_ADDR 0xbf000000
22#define WINDOW_SIZE 0x00400000
23
24/*
25 * MAP DRIVER STUFF
26 */
27
28
29static struct map_info pnc_map = {
30	.name = "PNC-2000",
31	.size = WINDOW_SIZE,
32	.bankwidth = 4,
33	.phys = 0xFFFFFFFF,
34	.virt = (void __iomem *)WINDOW_ADDR,
35};
36
37
38/*
39 * MTD 'PARTITIONING' STUFF
40 */
41static struct mtd_partition pnc_partitions[3] = {
42	{
43		.name = "PNC-2000 boot firmware",
44		.size = 0x20000,
45		.offset = 0
46	},
47	{
48		.name = "PNC-2000 kernel",
49		.size = 0x1a0000,
50		.offset = 0x20000
51	},
52	{
53		.name = "PNC-2000 filesystem",
54		.size = 0x240000,
55		.offset = 0x1c0000
56	}
57};
58
59/*
60 * This is the master MTD device for which all the others are just
61 * auto-relocating aliases.
62 */
63static struct mtd_info *mymtd;
64
65static int __init init_pnc2000(void)
66{
67	printk(KERN_NOTICE "Photron PNC-2000 flash mapping: %x at %x\n", WINDOW_SIZE, WINDOW_ADDR);
68
69	simple_map_init(&pnc_map);
70
71	mymtd = do_map_probe("cfi_probe", &pnc_map);
72	if (mymtd) {
73		mymtd->owner = THIS_MODULE;
74		return add_mtd_partitions(mymtd, pnc_partitions, 3);
75	}
76
77	return -ENXIO;
78}
79
80static void __exit cleanup_pnc2000(void)
81{
82	if (mymtd) {
83		del_mtd_partitions(mymtd);
84		map_destroy(mymtd);
85	}
86}
87
88module_init(init_pnc2000);
89module_exit(cleanup_pnc2000);
90
91MODULE_LICENSE("GPL");
92MODULE_AUTHOR("Crossnet Co. <info@crossnet.co.jp>");
93MODULE_DESCRIPTION("MTD map driver for Photron PNC-2000 board");
94