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83d290c5 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
932394ac WD |
2 | /* |
3 | * (C) Copyright 2005 | |
4 | * 2N Telekomunikace, a.s. <www.2n.cz> | |
5 | * Ladislav Michl <[email protected]> | |
932394ac WD |
6 | */ |
7 | ||
8 | #ifndef _NAND_H_ | |
9 | #define _NAND_H_ | |
10 | ||
9d2e3947 | 11 | extern void nand_init(void); |
333d43f6 | 12 | void nand_reinit(void); |
203db38a | 13 | unsigned long nand_size(void); |
38ef64e6 | 14 | unsigned int nand_page_size(void); |
9d2e3947 | 15 | |
7b15e2bb | 16 | #include <linux/compat.h> |
932394ac | 17 | #include <linux/mtd/mtd.h> |
932394ac | 18 | |
b616d9b0 SW |
19 | int nand_mtd_to_devnum(struct mtd_info *mtd); |
20 | ||
068c41f1 | 21 | #if CONFIG_IS_ENABLED(SYS_NAND_SELF_INIT) |
578931b3 | 22 | void board_nand_init(void); |
b616d9b0 | 23 | int nand_register(int devnum, struct mtd_info *mtd); |
c2034821 | 24 | void nand_unregister(struct mtd_info *mtd); |
578931b3 | 25 | #else |
1cefed1e TR |
26 | struct nand_chip; |
27 | ||
69fb8be4 | 28 | extern int board_nand_init(struct nand_chip *nand); |
578931b3 | 29 | #endif |
69fb8be4 | 30 | |
932394ac | 31 | extern int nand_curr_device; |
932394ac | 32 | |
151c06ec SW |
33 | static inline int nand_read(struct mtd_info *info, loff_t ofs, size_t *len, |
34 | u_char *buf) | |
932394ac | 35 | { |
dfe64e2c | 36 | return mtd_read(info, ofs, *len, (size_t *)len, buf); |
932394ac WD |
37 | } |
38 | ||
151c06ec SW |
39 | static inline int nand_write(struct mtd_info *info, loff_t ofs, size_t *len, |
40 | u_char *buf) | |
932394ac | 41 | { |
dfe64e2c | 42 | return mtd_write(info, ofs, *len, (size_t *)len, buf); |
932394ac WD |
43 | } |
44 | ||
151c06ec | 45 | static inline int nand_block_isbad(struct mtd_info *info, loff_t ofs) |
932394ac | 46 | { |
dfe64e2c | 47 | return mtd_block_isbad(info, ofs); |
932394ac WD |
48 | } |
49 | ||
151c06ec | 50 | static inline int nand_erase(struct mtd_info *info, loff_t off, size_t size) |
932394ac | 51 | { |
8e9655f8 WD |
52 | struct erase_info instr; |
53 | ||
54 | instr.mtd = info; | |
55 | instr.addr = off; | |
56 | instr.len = size; | |
8e9655f8 | 57 | |
dfe64e2c | 58 | return mtd_erase(info, &instr); |
932394ac WD |
59 | } |
60 | ||
2255b2d2 SR |
61 | |
62 | /***************************************************************************** | |
63 | * declarations from nand_util.c | |
64 | ****************************************************************************/ | |
65 | ||
cfa460ad | 66 | typedef struct mtd_oob_ops mtd_oob_ops_t; |
2255b2d2 | 67 | |
2255b2d2 | 68 | struct nand_erase_options { |
30486322 SW |
69 | loff_t length; /* number of bytes to erase */ |
70 | loff_t offset; /* first address in NAND to erase */ | |
2255b2d2 SR |
71 | int quiet; /* don't display progress messages */ |
72 | int jffs2; /* if true: format for jffs2 usage | |
73 | * (write appropriate cleanmarker blocks) */ | |
74 | int scrub; /* if true, really clean NAND by erasing | |
75 | * bad blocks (UNSAFE) */ | |
30486322 SW |
76 | |
77 | /* Don't include skipped bad blocks in size to be erased */ | |
78 | int spread; | |
a67cc37e HS |
79 | /* maximum size that actual may be in order to not exceed the buf */ |
80 | loff_t lim; | |
2255b2d2 SR |
81 | }; |
82 | ||
83 | typedef struct nand_erase_options nand_erase_options_t; | |
84 | ||
151c06ec | 85 | int nand_read_skip_bad(struct mtd_info *mtd, loff_t offset, size_t *length, |
c39d6a0e | 86 | size_t *actual, loff_t lim, u_char *buffer); |
a6c9aa1f | 87 | |
004a1fdb PT |
88 | #define WITH_DROP_FFS (1 << 0) /* drop trailing all-0xff pages */ |
89 | #define WITH_WR_VERIFY (1 << 1) /* verify data was written correctly */ | |
a6c9aa1f | 90 | |
151c06ec | 91 | int nand_write_skip_bad(struct mtd_info *mtd, loff_t offset, size_t *length, |
c39d6a0e | 92 | size_t *actual, loff_t lim, u_char *buffer, int flags); |
151c06ec SW |
93 | int nand_erase_opts(struct mtd_info *mtd, |
94 | const nand_erase_options_t *opts); | |
95 | int nand_torture(struct mtd_info *mtd, loff_t offset); | |
96 | int nand_verify_page_oob(struct mtd_info *mtd, struct mtd_oob_ops *ops, | |
97 | loff_t ofs); | |
98 | int nand_verify(struct mtd_info *mtd, loff_t ofs, size_t len, u_char *buf); | |
2255b2d2 SR |
99 | |
100 | #define NAND_LOCK_STATUS_TIGHT 0x01 | |
2255b2d2 SR |
101 | #define NAND_LOCK_STATUS_UNLOCK 0x04 |
102 | ||
151c06ec SW |
103 | int nand_lock(struct mtd_info *mtd, int tight); |
104 | int nand_unlock(struct mtd_info *mtd, loff_t start, size_t length, | |
105 | int allexcept); | |
106 | int nand_get_lock_status(struct mtd_info *mtd, loff_t offset); | |
2255b2d2 | 107 | |
9f6a14c4 | 108 | u32 nand_spl_adjust_offset(u32 sector, u32 offs); |
12c2f1ee | 109 | int nand_spl_load_image(uint32_t offs, unsigned int size, void *dst); |
e1a89e93 | 110 | int nand_spl_read_block(int block, int offset, int len, void *dst); |
bb085b87 SS |
111 | void nand_deselect(void); |
112 | ||
6d0f6bcf | 113 | #ifdef CONFIG_SYS_NAND_SELECT_DEVICE |
43a2b0e7 SR |
114 | void board_nand_select_device(struct nand_chip *nand, int chip); |
115 | #endif | |
116 | ||
e4c09508 SW |
117 | __attribute__((noreturn)) void nand_boot(void); |
118 | ||
c9f7351b BG |
119 | #ifdef CONFIG_ENV_OFFSET_OOB |
120 | #define ENV_OOB_MARKER 0x30425645 /*"EVB0" in little-endian -- offset is stored | |
121 | as block number*/ | |
122 | #define ENV_OOB_MARKER_OLD 0x30564e45 /*"ENV0" in little-endian -- offset is | |
123 | stored as byte number */ | |
124 | #define ENV_OFFSET_SIZE 8 | |
151c06ec | 125 | int get_nand_env_oob(struct mtd_info *mtd, unsigned long *result); |
c9f7351b | 126 | #endif |
4dfd3605 | 127 | int spl_nand_erase_one(int block, int page); |
4ccae81c BB |
128 | |
129 | /* platform specific init functions */ | |
130 | void sunxi_nand_init(void); | |
2afc741a | 131 | |
ad92dff2 M |
132 | /* |
133 | * get_nand_dev_by_index - Get the nand info based in index. | |
134 | * | |
135 | * @dev - index to the nand device. | |
136 | * | |
137 | * returns pointer to the nand device info structure or NULL on failure. | |
138 | */ | |
139 | struct mtd_info *get_nand_dev_by_index(int dev); | |
140 | ||
2afc741a | 141 | #endif /* _NAND_H_ */ |