nand.h
4.18 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
/*
* (C) Copyright 2005
* 2N Telekomunikace, a.s. <www.2n.cz>
* Ladislav Michl <michl@2n.cz>
*
* SPDX-License-Identifier: GPL-2.0
*/
#ifndef _NAND_H_
#define _NAND_H_
#include <config.h>
/*
* All boards using a given driver must convert to self-init
* at the same time, so do it here. When all drivers are
* converted, this will go away.
*/
#ifdef CONFIG_SPL_BUILD
#if defined(CONFIG_NAND_FSL_ELBC) || defined(CONFIG_NAND_FSL_IFC)
#define CONFIG_SYS_NAND_SELF_INIT
#endif
#else
#if defined(CONFIG_NAND_FSL_ELBC) || defined(CONFIG_NAND_ATMEL)\
|| defined(CONFIG_NAND_FSL_IFC)
#define CONFIG_SYS_NAND_SELF_INIT
#endif
#endif
extern void nand_init(void);
#include <linux/compat.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/nand.h>
int nand_mtd_to_devnum(struct mtd_info *mtd);
#ifdef CONFIG_SYS_NAND_SELF_INIT
void board_nand_init(void);
int nand_register(int devnum, struct mtd_info *mtd);
#else
extern int board_nand_init(struct nand_chip *nand);
#endif
extern int nand_curr_device;
extern struct mtd_info *nand_info[];
static inline int nand_read(struct mtd_info *info, loff_t ofs, size_t *len,
u_char *buf)
{
return mtd_read(info, ofs, *len, (size_t *)len, buf);
}
static inline int nand_write(struct mtd_info *info, loff_t ofs, size_t *len,
u_char *buf)
{
return mtd_write(info, ofs, *len, (size_t *)len, buf);
}
static inline int nand_block_isbad(struct mtd_info *info, loff_t ofs)
{
return mtd_block_isbad(info, ofs);
}
static inline int nand_erase(struct mtd_info *info, loff_t off, size_t size)
{
struct erase_info instr;
instr.mtd = info;
instr.addr = off;
instr.len = size;
instr.callback = 0;
return mtd_erase(info, &instr);
}
/*****************************************************************************
* declarations from nand_util.c
****************************************************************************/
typedef struct mtd_oob_ops mtd_oob_ops_t;
struct nand_erase_options {
loff_t length; /* number of bytes to erase */
loff_t offset; /* first address in NAND to erase */
int quiet; /* don't display progress messages */
int jffs2; /* if true: format for jffs2 usage
* (write appropriate cleanmarker blocks) */
int scrub; /* if true, really clean NAND by erasing
* bad blocks (UNSAFE) */
/* Don't include skipped bad blocks in size to be erased */
int spread;
/* maximum size that actual may be in order to not exceed the buf */
loff_t lim;
};
typedef struct nand_erase_options nand_erase_options_t;
int nand_read_skip_bad(struct mtd_info *mtd, loff_t offset, size_t *length,
size_t *actual, loff_t lim, u_char *buffer);
#define WITH_DROP_FFS (1 << 0) /* drop trailing all-0xff pages */
#define WITH_WR_VERIFY (1 << 1) /* verify data was written correctly */
int nand_write_skip_bad(struct mtd_info *mtd, loff_t offset, size_t *length,
size_t *actual, loff_t lim, u_char *buffer, int flags);
int nand_erase_opts(struct mtd_info *mtd,
const nand_erase_options_t *opts);
int nand_torture(struct mtd_info *mtd, loff_t offset);
int nand_verify_page_oob(struct mtd_info *mtd, struct mtd_oob_ops *ops,
loff_t ofs);
int nand_verify(struct mtd_info *mtd, loff_t ofs, size_t len, u_char *buf);
#define NAND_LOCK_STATUS_TIGHT 0x01
#define NAND_LOCK_STATUS_UNLOCK 0x04
int nand_lock(struct mtd_info *mtd, int tight);
int nand_unlock(struct mtd_info *mtd, loff_t start, size_t length,
int allexcept);
int nand_get_lock_status(struct mtd_info *mtd, loff_t offset);
int nand_spl_load_image(uint32_t offs, unsigned int size, void *dst);
int nand_spl_read_block(int block, int offset, int len, void *dst);
void nand_deselect(void);
#ifdef CONFIG_SYS_NAND_SELECT_DEVICE
void board_nand_select_device(struct nand_chip *nand, int chip);
#endif
__attribute__((noreturn)) void nand_boot(void);
#endif
#ifdef CONFIG_ENV_OFFSET_OOB
#define ENV_OOB_MARKER 0x30425645 /*"EVB0" in little-endian -- offset is stored
as block number*/
#define ENV_OOB_MARKER_OLD 0x30564e45 /*"ENV0" in little-endian -- offset is
stored as byte number */
#define ENV_OFFSET_SIZE 8
int get_nand_env_oob(struct mtd_info *mtd, unsigned long *result);
#endif
int spl_nand_erase_one(int block, int page);
/* platform specific init functions */
void sunxi_nand_init(void);