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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [drivers/] [mtd/] [maps/] [physmap64.c] - Blame information for rev 1774

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/*
 * $Id: physmap64.c,v 1.1.1.1 2004-04-15 01:51:44 phoenix Exp $
 *
 * Normal mappings of chips in physical memory
 */
 
#include <linux/module.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <asm/io.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/map.h>
#include <linux/config.h>
#include <linux/mtd/cfi.h>
 
#ifdef CONFIG_MTD_PARTITIONS
#include <linux/mtd/partitions.h>
#endif
 
#define WINDOW_ADDR CONFIG_MTD_PHYSMAP_START
#define WINDOW_SIZE CONFIG_MTD_PHYSMAP_LEN
#define BUSWIDTH CONFIG_MTD_PHYSMAP_BUSWIDTH
 
static struct mtd_info *mymtd;
 
__u8 physmap_read8(struct map_info *map, unsigned long ofs)
{
        return __raw_readb(map->map_priv_1 + ofs);
}
 
__u16 physmap_read16(struct map_info *map, unsigned long ofs)
{
        return __raw_readw(map->map_priv_1 + ofs);
}
 
__u32 physmap_read32(struct map_info *map, unsigned long ofs)
{
        return __raw_readl(map->map_priv_1 + ofs);
}
 
__u64 physmap_read64(struct map_info *map, unsigned long ofs)
{
        return __raw_readll(map->map_priv_1 + ofs);
}
 
void physmap_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
{
        memcpy_fromio(to, map->map_priv_1 + from, len);
}
 
void physmap_write8(struct map_info *map, __u8 d, unsigned long adr)
{
        __raw_writeb(d, map->map_priv_1 + adr);
        mb();
}
 
void physmap_write16(struct map_info *map, __u16 d, unsigned long adr)
{
        __raw_writew(d, map->map_priv_1 + adr);
        mb();
}
 
void physmap_write32(struct map_info *map, __u32 d, unsigned long adr)
{
        __raw_writel(d, map->map_priv_1 + adr);
        mb();
}
 
void physmap_write64(struct map_info *map, __u64 d, unsigned long adr)
{
        __raw_writell(d, map->map_priv_1 + adr);
        mb();
}
 
void physmap_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
{
        memcpy_toio(map->map_priv_1 + to, from, len);
}
 
struct map_info physmap_map = {
        name: "Physically mapped flash",
        size: WINDOW_SIZE,
        buswidth: BUSWIDTH,
        read8: physmap_read8,
        read16: physmap_read16,
        read32: physmap_read32,
        read64: physmap_read64,
        copy_from: physmap_copy_from,
        write8: physmap_write8,
        write16: physmap_write16,
        write32: physmap_write32,
        write64: physmap_write64,
        copy_to: physmap_copy_to
};
 
#ifdef CONFIG_MTD_PARTITIONS
#ifdef CONFIG_MTD_CMDLINE_PARTS
static struct mtd_partition *mtd_parts = 0;
static int                   mtd_parts_nb = 0;
#else
static struct mtd_partition physmap_partitions[] = {
/* Put your own partition definitions here */
#if 0
        {
                name:           "bootROM",
                size:           0x80000,
                offset:         0,
                mask_flags:     MTD_WRITEABLE,  /* force read-only */
        }, {
                name:           "zImage",
                size:           0x100000,
                offset:         MTDPART_OFS_APPEND,
                mask_flags:     MTD_WRITEABLE,  /* force read-only */
        }, {
                name:           "ramdisk.gz",
                size:           0x300000,
                offset:         MTDPART_OFS_APPEND,
                mask_flags:     MTD_WRITEABLE,  /* force read-only */
        }, {
                name:           "User FS",
                size:           MTDPART_SIZ_FULL,
                offset:         MTDPART_OFS_APPEND,
        }
#endif
};
 
#define NUM_PARTITIONS  (sizeof(physmap_partitions)/sizeof(struct mtd_partition))
 
#endif
#endif
 
int __init init_physmap(void)
{
        static const char *rom_probe_types[] = { "cfi_probe", "jedec_probe", "map_rom", 0 };
        const char **type;
 
        printk(KERN_NOTICE "physmap flash device: %x at %x\n", WINDOW_SIZE, WINDOW_ADDR);
        physmap_map.map_priv_1 = (unsigned long)ioremap(WINDOW_ADDR, WINDOW_SIZE);
 
        if (!physmap_map.map_priv_1) {
                printk("Failed to ioremap\n");
                return -EIO;
        }
 
        mymtd = 0;
        type = rom_probe_types;
        for(; !mymtd && *type; type++) {
                mymtd = do_map_probe(*type, &physmap_map);
        }
        if (mymtd) {
                mymtd->module = THIS_MODULE;
 
                add_mtd_device(mymtd);
#ifdef CONFIG_MTD_PARTITIONS
#ifdef CONFIG_MTD_CMDLINE_PARTS
                mtd_parts_nb = parse_cmdline_partitions(mymtd, &mtd_parts,
                                                        "phys");
                if (mtd_parts_nb > 0)
                {
                        printk(KERN_NOTICE
                               "Using command line partition definition\n");
                        add_mtd_partitions (mymtd, mtd_parts, mtd_parts_nb);
                }
#else
                if (NUM_PARTITIONS != 0)
                {
                        printk(KERN_NOTICE
                               "Using physmap partition definition\n");
                        add_mtd_partitions (mymtd, physmap_partitions, NUM_PARTITIONS);
                }
 
#endif
#endif
                return 0;
        }
 
        iounmap((void *)physmap_map.map_priv_1);
        return -ENXIO;
}
 
static void __exit cleanup_physmap(void)
{
        if (mymtd) {
                del_mtd_device(mymtd);
                map_destroy(mymtd);
        }
        if (physmap_map.map_priv_1) {
                iounmap((void *)physmap_map.map_priv_1);
                physmap_map.map_priv_1 = 0;
        }
}
 
module_init(init_physmap);
module_exit(cleanup_physmap);
 
 
MODULE_LICENSE("GPL");
MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org>");
MODULE_DESCRIPTION("Generic configurable MTD map driver");

Line No.	Rev	Author	Line
1	1275	phoenix	`/*`
2			`* $Id: physmap64.c,v 1.1.1.1 2004-04-15 01:51:44 phoenix Exp $`
3			`*`
4			`* Normal mappings of chips in physical memory`
5			`*/`
6
7			`#include <linux/module.h>`
8			`#include <linux/types.h>`
9			`#include <linux/kernel.h>`
10			`#include <asm/io.h>`
11			`#include <linux/mtd/mtd.h>`
12			`#include <linux/mtd/map.h>`
13			`#include <linux/config.h>`
14			`#include <linux/mtd/cfi.h>`
15
16			`#ifdef CONFIG_MTD_PARTITIONS`
17			`#include <linux/mtd/partitions.h>`
18			`#endif`
19
20			`#define WINDOW_ADDR CONFIG_MTD_PHYSMAP_START`
21			`#define WINDOW_SIZE CONFIG_MTD_PHYSMAP_LEN`
22			`#define BUSWIDTH CONFIG_MTD_PHYSMAP_BUSWIDTH`
23
24			`static struct mtd_info *mymtd;`
25
26			`__u8 physmap_read8(struct map_info *map, unsigned long ofs)`
27			`{`
28			`return __raw_readb(map->map_priv_1 + ofs);`
29			`}`
30
31			`__u16 physmap_read16(struct map_info *map, unsigned long ofs)`
32			`{`
33			`return __raw_readw(map->map_priv_1 + ofs);`
34			`}`
35
36			`__u32 physmap_read32(struct map_info *map, unsigned long ofs)`
37			`{`
38			`return __raw_readl(map->map_priv_1 + ofs);`
39			`}`
40
41			`__u64 physmap_read64(struct map_info *map, unsigned long ofs)`
42			`{`
43			`return __raw_readll(map->map_priv_1 + ofs);`
44			`}`
45
46			`void physmap_copy_from(struct map_info map, void to, unsigned long from, ssize_t len)`
47			`{`
48			`memcpy_fromio(to, map->map_priv_1 + from, len);`
49			`}`
50
51			`void physmap_write8(struct map_info *map, __u8 d, unsigned long adr)`
52			`{`
53			`__raw_writeb(d, map->map_priv_1 + adr);`
54			`mb();`
55			`}`
56
57			`void physmap_write16(struct map_info *map, __u16 d, unsigned long adr)`
58			`{`
59			`__raw_writew(d, map->map_priv_1 + adr);`
60			`mb();`
61			`}`
62
63			`void physmap_write32(struct map_info *map, __u32 d, unsigned long adr)`
64			`{`
65			`__raw_writel(d, map->map_priv_1 + adr);`
66			`mb();`
67			`}`
68
69			`void physmap_write64(struct map_info *map, __u64 d, unsigned long adr)`
70			`{`
71			`__raw_writell(d, map->map_priv_1 + adr);`
72			`mb();`
73			`}`
74
75			`void physmap_copy_to(struct map_info map, unsigned long to, const void from, ssize_t len)`
76			`{`
77			`memcpy_toio(map->map_priv_1 + to, from, len);`
78			`}`
79
80			`struct map_info physmap_map = {`
81			`name: "Physically mapped flash",`
82			`size: WINDOW_SIZE,`
83			`buswidth: BUSWIDTH,`
84			`read8: physmap_read8,`
85			`read16: physmap_read16,`
86			`read32: physmap_read32,`
87			`read64: physmap_read64,`
88			`copy_from: physmap_copy_from,`
89			`write8: physmap_write8,`
90			`write16: physmap_write16,`
91			`write32: physmap_write32,`
92			`write64: physmap_write64,`
93			`copy_to: physmap_copy_to`
94			`};`
95
96			`#ifdef CONFIG_MTD_PARTITIONS`
97			`#ifdef CONFIG_MTD_CMDLINE_PARTS`
98			`static struct mtd_partition *mtd_parts = 0;`
99			`static int mtd_parts_nb = 0;`
100			`#else`
101			`static struct mtd_partition physmap_partitions[] = {`
102			`/* Put your own partition definitions here */`
103			`#if 0`
104			`{`
105			`name: "bootROM",`
106			`size: 0x80000,`
107			`offset: 0,`
108			`mask_flags: MTD_WRITEABLE, /* force read-only */`
109			`}, {`
110			`name: "zImage",`
111			`size: 0x100000,`
112			`offset: MTDPART_OFS_APPEND,`
113			`mask_flags: MTD_WRITEABLE, /* force read-only */`
114			`}, {`
115			`name: "ramdisk.gz",`
116			`size: 0x300000,`
117			`offset: MTDPART_OFS_APPEND,`
118			`mask_flags: MTD_WRITEABLE, /* force read-only */`
119			`}, {`
120			`name: "User FS",`
121			`size: MTDPART_SIZ_FULL,`
122			`offset: MTDPART_OFS_APPEND,`
123			`}`
124			`#endif`
125			`};`
126
127			`#define NUM_PARTITIONS (sizeof(physmap_partitions)/sizeof(struct mtd_partition))`
128
129			`#endif`
130			`#endif`
131
132			`int __init init_physmap(void)`
133			`{`
134			`static const char *rom_probe_types[] = { "cfi_probe", "jedec_probe", "map_rom", 0 };`
135			`const char **type;`
136
137			`printk(KERN_NOTICE "physmap flash device: %x at %x\n", WINDOW_SIZE, WINDOW_ADDR);`
138			`physmap_map.map_priv_1 = (unsigned long)ioremap(WINDOW_ADDR, WINDOW_SIZE);`
139
140			`if (!physmap_map.map_priv_1) {`
141			`printk("Failed to ioremap\n");`
142			`return -EIO;`
143			`}`
144
145			`mymtd = 0;`
146			`type = rom_probe_types;`
147			`for(; !mymtd && *type; type++) {`
148			`mymtd = do_map_probe(*type, &physmap_map);`
149			`}`
150			`if (mymtd) {`
151			`mymtd->module = THIS_MODULE;`
152
153			`add_mtd_device(mymtd);`
154			`#ifdef CONFIG_MTD_PARTITIONS`
155			`#ifdef CONFIG_MTD_CMDLINE_PARTS`
156			`mtd_parts_nb = parse_cmdline_partitions(mymtd, &mtd_parts,`
157			`"phys");`
158			`if (mtd_parts_nb > 0)`
159			`{`
160			`printk(KERN_NOTICE`
161			`"Using command line partition definition\n");`
162			`add_mtd_partitions (mymtd, mtd_parts, mtd_parts_nb);`
163			`}`
164			`#else`
165			`if (NUM_PARTITIONS != 0)`
166			`{`
167			`printk(KERN_NOTICE`
168			`"Using physmap partition definition\n");`
169			`add_mtd_partitions (mymtd, physmap_partitions, NUM_PARTITIONS);`
170			`}`
171
172			`#endif`
173			`#endif`
174			`return 0;`
175			`}`
176
177			`iounmap((void *)physmap_map.map_priv_1);`
178			`return -ENXIO;`
179			`}`
180
181			`static void __exit cleanup_physmap(void)`
182			`{`
183			`if (mymtd) {`
184			`del_mtd_device(mymtd);`
185			`map_destroy(mymtd);`
186			`}`
187			`if (physmap_map.map_priv_1) {`
188			`iounmap((void *)physmap_map.map_priv_1);`
189			`physmap_map.map_priv_1 = 0;`
190			`}`
191			`}`
192
193			`module_init(init_physmap);`
194			`module_exit(cleanup_physmap);`
195
196
197			`MODULE_LICENSE("GPL");`
198			`MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org>");`
199			`MODULE_DESCRIPTION("Generic configurable MTD map driver");`

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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [drivers/] [mtd/] [maps/] [physmap64.c] - Blame information for rev 1774