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8#ifndef _NAND_H_
9#define _NAND_H_
10
11#include <config.h>
12
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15
16
17
18#ifdef CONFIG_SPL_BUILD
19#if defined(CONFIG_NAND_FSL_ELBC) || defined(CONFIG_NAND_FSL_IFC)
20#define CONFIG_SYS_NAND_SELF_INIT
21#endif
22#else
23#if defined(CONFIG_NAND_FSL_ELBC) || defined(CONFIG_NAND_ATMEL)\
24 || defined(CONFIG_NAND_FSL_IFC)
25#define CONFIG_SYS_NAND_SELF_INIT
26#endif
27#endif
28
29extern void nand_init(void);
30unsigned long nand_size(void);
31
32#include <linux/compat.h>
33#include <linux/mtd/mtd.h>
34#include <linux/mtd/rawnand.h>
35
36int nand_mtd_to_devnum(struct mtd_info *mtd);
37
38#ifdef CONFIG_SYS_NAND_SELF_INIT
39void board_nand_init(void);
40int nand_register(int devnum, struct mtd_info *mtd);
41#else
42extern int board_nand_init(struct nand_chip *nand);
43#endif
44
45extern int nand_curr_device;
46
47static inline int nand_read(struct mtd_info *info, loff_t ofs, size_t *len,
48 u_char *buf)
49{
50 return mtd_read(info, ofs, *len, (size_t *)len, buf);
51}
52
53static inline int nand_write(struct mtd_info *info, loff_t ofs, size_t *len,
54 u_char *buf)
55{
56 return mtd_write(info, ofs, *len, (size_t *)len, buf);
57}
58
59static inline int nand_block_isbad(struct mtd_info *info, loff_t ofs)
60{
61 return mtd_block_isbad(info, ofs);
62}
63
64static inline int nand_erase(struct mtd_info *info, loff_t off, size_t size)
65{
66 struct erase_info instr;
67
68 instr.mtd = info;
69 instr.addr = off;
70 instr.len = size;
71 instr.callback = 0;
72
73 return mtd_erase(info, &instr);
74}
75
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80
81typedef struct mtd_oob_ops mtd_oob_ops_t;
82
83struct nand_erase_options {
84 loff_t length;
85 loff_t offset;
86 int quiet;
87 int jffs2;
88
89 int scrub;
90
91
92
93 int spread;
94
95 loff_t lim;
96};
97
98typedef struct nand_erase_options nand_erase_options_t;
99
100int nand_read_skip_bad(struct mtd_info *mtd, loff_t offset, size_t *length,
101 size_t *actual, loff_t lim, u_char *buffer);
102
103#define WITH_DROP_FFS (1 << 0)
104#define WITH_WR_VERIFY (1 << 1)
105
106int nand_write_skip_bad(struct mtd_info *mtd, loff_t offset, size_t *length,
107 size_t *actual, loff_t lim, u_char *buffer, int flags);
108int nand_erase_opts(struct mtd_info *mtd,
109 const nand_erase_options_t *opts);
110int nand_torture(struct mtd_info *mtd, loff_t offset);
111int nand_verify_page_oob(struct mtd_info *mtd, struct mtd_oob_ops *ops,
112 loff_t ofs);
113int nand_verify(struct mtd_info *mtd, loff_t ofs, size_t len, u_char *buf);
114
115#define NAND_LOCK_STATUS_TIGHT 0x01
116#define NAND_LOCK_STATUS_UNLOCK 0x04
117
118int nand_lock(struct mtd_info *mtd, int tight);
119int nand_unlock(struct mtd_info *mtd, loff_t start, size_t length,
120 int allexcept);
121int nand_get_lock_status(struct mtd_info *mtd, loff_t offset);
122
123int nand_spl_load_image(uint32_t offs, unsigned int size, void *dst);
124int nand_spl_read_block(int block, int offset, int len, void *dst);
125void nand_deselect(void);
126
127#ifdef CONFIG_SYS_NAND_SELECT_DEVICE
128void board_nand_select_device(struct nand_chip *nand, int chip);
129#endif
130
131__attribute__((noreturn)) void nand_boot(void);
132
133#ifdef CONFIG_ENV_OFFSET_OOB
134#define ENV_OOB_MARKER 0x30425645
135
136#define ENV_OOB_MARKER_OLD 0x30564e45
137
138#define ENV_OFFSET_SIZE 8
139int get_nand_env_oob(struct mtd_info *mtd, unsigned long *result);
140#endif
141int spl_nand_erase_one(int block, int page);
142
143
144void sunxi_nand_init(void);
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153struct mtd_info *get_nand_dev_by_index(int dev);
154
155#endif
156