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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [drivers/] [mtd/] [maps/] [pnc2000.c] - Blame information for rev 1765

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/*
 *      pnc2000.c - mapper for Photron PNC-2000 board.
 *
 * Copyright (C) 2000 Crossnet Co. <info@crossnet.co.jp>
 *
 * This code is GPL
 *
 * $Id: pnc2000.c,v 1.1.1.1 2004-04-15 01:51:54 phoenix Exp $
 */
 
#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>
 
 
#define WINDOW_ADDR 0xbf000000
#define WINDOW_SIZE 0x00400000
 
/*
 * MAP DRIVER STUFF
 */
 
__u8 pnc_read8(struct map_info *map, unsigned long ofs)
{
  return *(__u8 *)(WINDOW_ADDR + ofs);
}
 
__u16 pnc_read16(struct map_info *map, unsigned long ofs)
{
  return *(__u16 *)(WINDOW_ADDR + ofs);
}
 
__u32 pnc_read32(struct map_info *map, unsigned long ofs)
{
  return *(volatile unsigned int *)(WINDOW_ADDR + ofs);
}
 
void pnc_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
{
  memcpy(to, (void *)(WINDOW_ADDR + from), len);
}
 
void pnc_write8(struct map_info *map, __u8 d, unsigned long adr)
{
  *(__u8 *)(WINDOW_ADDR + adr) = d;
}
 
void pnc_write16(struct map_info *map, __u16 d, unsigned long adr)
{
  *(__u16 *)(WINDOW_ADDR + adr) = d;
}
 
void pnc_write32(struct map_info *map, __u32 d, unsigned long adr)
{
  *(__u32 *)(WINDOW_ADDR + adr) = d;
}
 
void pnc_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
{
  memcpy((void *)(WINDOW_ADDR + to), from, len);
}
 
struct map_info pnc_map = {
        name: "PNC-2000",
        size: WINDOW_SIZE,
        buswidth: 4,
        read8: pnc_read8,
        read16: pnc_read16,
        read32: pnc_read32,
        copy_from: pnc_copy_from,
        write8: pnc_write8,
        write16: pnc_write16,
        write32: pnc_write32,
        copy_to: pnc_copy_to
};
 
 
/*
 * MTD 'PARTITIONING' STUFF
 */
static struct mtd_partition pnc_partitions[3] = {
        {
                name: "PNC-2000 boot firmware",
                size: 0x20000,
                offset: 0
        },
        {
                name: "PNC-2000 kernel",
                size: 0x1a0000,
                offset: 0x20000
        },
        {
                name: "PNC-2000 filesystem",
                size: 0x240000,
                offset: 0x1c0000
        }
};
 
/*
 * This is the master MTD device for which all the others are just
 * auto-relocating aliases.
 */
static struct mtd_info *mymtd;
 
int __init init_pnc2000(void)
{
        printk(KERN_NOTICE "Photron PNC-2000 flash mapping: %x at %x\n", WINDOW_SIZE, WINDOW_ADDR);
 
        mymtd = do_map_probe("cfi_probe", &pnc_map);
        if (mymtd) {
                mymtd->module = THIS_MODULE;
                return add_mtd_partitions(mymtd, pnc_partitions, 3);
        }
 
        return -ENXIO;
}
 
static void __exit cleanup_pnc2000(void)
{
        if (mymtd) {
                del_mtd_partitions(mymtd);
                map_destroy(mymtd);
        }
}
 
module_init(init_pnc2000);
module_exit(cleanup_pnc2000);
 
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Crossnet Co. <info@crossnet.co.jp>");
MODULE_DESCRIPTION("MTD map driver for Photron PNC-2000 board");

Line No.	Rev	Author	Line
1	1275	phoenix	`/*`
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 2004-04-15 01:51:54 phoenix Exp $`
9			`*/`
10
11			`#include <linux/module.h>`
12			`#include <linux/types.h>`
13			`#include <linux/kernel.h>`
14
15			`#include <linux/mtd/mtd.h>`
16			`#include <linux/mtd/map.h>`
17			`#include <linux/mtd/partitions.h>`
18
19
20			`#define WINDOW_ADDR 0xbf000000`
21			`#define WINDOW_SIZE 0x00400000`
22
23			`/*`
24			`* MAP DRIVER STUFF`
25			`*/`
26
27			`__u8 pnc_read8(struct map_info *map, unsigned long ofs)`
28			`{`
29			`return (__u8 )(WINDOW_ADDR + ofs);`
30			`}`
31
32			`__u16 pnc_read16(struct map_info *map, unsigned long ofs)`
33			`{`
34			`return (__u16 )(WINDOW_ADDR + ofs);`
35			`}`
36
37			`__u32 pnc_read32(struct map_info *map, unsigned long ofs)`
38			`{`
39			`return (volatile unsigned int )(WINDOW_ADDR + ofs);`
40			`}`
41
42			`void pnc_copy_from(struct map_info map, void to, unsigned long from, ssize_t len)`
43			`{`
44			`memcpy(to, (void *)(WINDOW_ADDR + from), len);`
45			`}`
46
47			`void pnc_write8(struct map_info *map, __u8 d, unsigned long adr)`
48			`{`
49			`(__u8 )(WINDOW_ADDR + adr) = d;`
50			`}`
51
52			`void pnc_write16(struct map_info *map, __u16 d, unsigned long adr)`
53			`{`
54			`(__u16 )(WINDOW_ADDR + adr) = d;`
55			`}`
56
57			`void pnc_write32(struct map_info *map, __u32 d, unsigned long adr)`
58			`{`
59			`(__u32 )(WINDOW_ADDR + adr) = d;`
60			`}`
61
62			`void pnc_copy_to(struct map_info map, unsigned long to, const void from, ssize_t len)`
63			`{`
64			`memcpy((void *)(WINDOW_ADDR + to), from, len);`
65			`}`
66
67			`struct map_info pnc_map = {`
68			`name: "PNC-2000",`
69			`size: WINDOW_SIZE,`
70			`buswidth: 4,`
71			`read8: pnc_read8,`
72			`read16: pnc_read16,`
73			`read32: pnc_read32,`
74			`copy_from: pnc_copy_from,`
75			`write8: pnc_write8,`
76			`write16: pnc_write16,`
77			`write32: pnc_write32,`
78			`copy_to: pnc_copy_to`
79			`};`
80
81
82			`/*`
83			`* MTD 'PARTITIONING' STUFF`
84			`*/`
85			`static struct mtd_partition pnc_partitions[3] = {`
86			`{`
87			`name: "PNC-2000 boot firmware",`
88			`size: 0x20000,`
89			`offset: 0`
90			`},`
91			`{`
92			`name: "PNC-2000 kernel",`
93			`size: 0x1a0000,`
94			`offset: 0x20000`
95			`},`
96			`{`
97			`name: "PNC-2000 filesystem",`
98			`size: 0x240000,`
99			`offset: 0x1c0000`
100			`}`
101			`};`
102
103			`/*`
104			`* This is the master MTD device for which all the others are just`
105			`* auto-relocating aliases.`
106			`*/`
107			`static struct mtd_info *mymtd;`
108
109			`int __init init_pnc2000(void)`
110			`{`
111			`printk(KERN_NOTICE "Photron PNC-2000 flash mapping: %x at %x\n", WINDOW_SIZE, WINDOW_ADDR);`
112
113			`mymtd = do_map_probe("cfi_probe", &pnc_map);`
114			`if (mymtd) {`
115			`mymtd->module = THIS_MODULE;`
116			`return add_mtd_partitions(mymtd, pnc_partitions, 3);`
117			`}`
118
119			`return -ENXIO;`
120			`}`
121
122			`static void __exit cleanup_pnc2000(void)`
123			`{`
124			`if (mymtd) {`
125			`del_mtd_partitions(mymtd);`
126			`map_destroy(mymtd);`
127			`}`
128			`}`
129
130			`module_init(init_pnc2000);`
131			`module_exit(cleanup_pnc2000);`
132
133			`MODULE_LICENSE("GPL");`
134			`MODULE_AUTHOR("Crossnet Co. <info@crossnet.co.jp>");`
135			`MODULE_DESCRIPTION("MTD map driver for Photron PNC-2000 board");`

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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [drivers/] [mtd/] [maps/] [pnc2000.c] - Blame information for rev 1765