Commit | Line | Data |
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1da177e4 LT |
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 | * | |
69f34c98 | 8 | * $Id: pnc2000.c,v 1.18 2005/11/07 11:14:28 gleixner Exp $ |
1da177e4 LT |
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 | ||
69f34c98 | 24 | /* |
1da177e4 LT |
25 | * MAP DRIVER STUFF |
26 | */ | |
27 | ||
28 | ||
29 | static 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 | /* | |
69f34c98 | 39 | * MTD 'PARTITIONING' STUFF |
1da177e4 LT |
40 | */ |
41 | static 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 | ||
69f34c98 | 59 | /* |
1da177e4 LT |
60 | * This is the master MTD device for which all the others are just |
61 | * auto-relocating aliases. | |
62 | */ | |
63 | static struct mtd_info *mymtd; | |
64 | ||
65 | static 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 | ||
80 | static void __exit cleanup_pnc2000(void) | |
81 | { | |
82 | if (mymtd) { | |
83 | del_mtd_partitions(mymtd); | |
84 | map_destroy(mymtd); | |
85 | } | |
86 | } | |
87 | ||
88 | module_init(init_pnc2000); | |
89 | module_exit(cleanup_pnc2000); | |
90 | ||
91 | MODULE_LICENSE("GPL"); | |
92 | MODULE_AUTHOR("Crossnet Co. <info@crossnet.co.jp>"); | |
93 | MODULE_DESCRIPTION("MTD map driver for Photron PNC-2000 board"); |