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932394ac WD |
1 | /* |
2 | * (C) Copyright 2005 | |
3 | * 2N Telekomunikace, a.s. <www.2n.cz> | |
4 | * Ladislav Michl <michl@2n.cz> | |
5 | * | |
5b8031cc | 6 | * SPDX-License-Identifier: GPL-2.0 |
932394ac WD |
7 | */ |
8 | ||
9 | #ifndef _NAND_H_ | |
10 | #define _NAND_H_ | |
11 | ||
c1783474 SW |
12 | #include <config.h> |
13 | ||
14 | /* | |
15 | * All boards using a given driver must convert to self-init | |
16 | * at the same time, so do it here. When all drivers are | |
17 | * converted, this will go away. | |
18 | */ | |
0b0b4f59 BS |
19 | #ifdef CONFIG_SPL_BUILD |
20 | #if defined(CONFIG_NAND_FSL_ELBC) || defined(CONFIG_NAND_FSL_IFC) | |
21 | #define CONFIG_SYS_NAND_SELF_INIT | |
22 | #endif | |
23 | #else | |
a1b81ab2 PK |
24 | #if defined(CONFIG_NAND_FSL_ELBC) || defined(CONFIG_NAND_ATMEL)\ |
25 | || defined(CONFIG_NAND_FSL_IFC) | |
c1783474 SW |
26 | #define CONFIG_SYS_NAND_SELF_INIT |
27 | #endif | |
0b0b4f59 | 28 | #endif |
c1783474 | 29 | |
9d2e3947 SW |
30 | extern void nand_init(void); |
31 | ||
7b15e2bb | 32 | #include <linux/compat.h> |
932394ac WD |
33 | #include <linux/mtd/mtd.h> |
34 | #include <linux/mtd/nand.h> | |
35 | ||
578931b3 SW |
36 | #ifdef CONFIG_SYS_NAND_SELF_INIT |
37 | void board_nand_init(void); | |
38 | int nand_register(int devnum); | |
39 | #else | |
69fb8be4 | 40 | extern int board_nand_init(struct nand_chip *nand); |
578931b3 | 41 | #endif |
69fb8be4 | 42 | |
932394ac WD |
43 | typedef struct mtd_info nand_info_t; |
44 | ||
45 | extern int nand_curr_device; | |
46 | extern nand_info_t nand_info[]; | |
47 | ||
378adfcd | 48 | static inline int nand_read(nand_info_t *info, loff_t ofs, size_t *len, u_char *buf) |
932394ac | 49 | { |
dfe64e2c | 50 | return mtd_read(info, ofs, *len, (size_t *)len, buf); |
932394ac WD |
51 | } |
52 | ||
378adfcd | 53 | static inline int nand_write(nand_info_t *info, loff_t ofs, size_t *len, u_char *buf) |
932394ac | 54 | { |
dfe64e2c | 55 | return mtd_write(info, ofs, *len, (size_t *)len, buf); |
932394ac WD |
56 | } |
57 | ||
378adfcd | 58 | static inline int nand_block_isbad(nand_info_t *info, loff_t ofs) |
932394ac | 59 | { |
dfe64e2c | 60 | return mtd_block_isbad(info, ofs); |
932394ac WD |
61 | } |
62 | ||
378adfcd | 63 | static inline int nand_erase(nand_info_t *info, loff_t off, size_t size) |
932394ac | 64 | { |
8e9655f8 WD |
65 | struct erase_info instr; |
66 | ||
67 | instr.mtd = info; | |
68 | instr.addr = off; | |
69 | instr.len = size; | |
70 | instr.callback = 0; | |
71 | ||
dfe64e2c | 72 | return mtd_erase(info, &instr); |
932394ac WD |
73 | } |
74 | ||
2255b2d2 SR |
75 | |
76 | /***************************************************************************** | |
77 | * declarations from nand_util.c | |
78 | ****************************************************************************/ | |
79 | ||
cfa460ad | 80 | typedef struct mtd_oob_ops mtd_oob_ops_t; |
2255b2d2 | 81 | |
2255b2d2 | 82 | struct nand_erase_options { |
30486322 SW |
83 | loff_t length; /* number of bytes to erase */ |
84 | loff_t offset; /* first address in NAND to erase */ | |
2255b2d2 SR |
85 | int quiet; /* don't display progress messages */ |
86 | int jffs2; /* if true: format for jffs2 usage | |
87 | * (write appropriate cleanmarker blocks) */ | |
88 | int scrub; /* if true, really clean NAND by erasing | |
89 | * bad blocks (UNSAFE) */ | |
30486322 SW |
90 | |
91 | /* Don't include skipped bad blocks in size to be erased */ | |
92 | int spread; | |
a67cc37e HS |
93 | /* maximum size that actual may be in order to not exceed the buf */ |
94 | loff_t lim; | |
2255b2d2 SR |
95 | }; |
96 | ||
97 | typedef struct nand_erase_options nand_erase_options_t; | |
98 | ||
378adfcd | 99 | int nand_read_skip_bad(nand_info_t *nand, loff_t offset, size_t *length, |
c39d6a0e | 100 | size_t *actual, loff_t lim, u_char *buffer); |
a6c9aa1f | 101 | |
004a1fdb PT |
102 | #define WITH_DROP_FFS (1 << 0) /* drop trailing all-0xff pages */ |
103 | #define WITH_WR_VERIFY (1 << 1) /* verify data was written correctly */ | |
a6c9aa1f | 104 | |
378adfcd | 105 | int nand_write_skip_bad(nand_info_t *nand, loff_t offset, size_t *length, |
c39d6a0e | 106 | size_t *actual, loff_t lim, u_char *buffer, int flags); |
2255b2d2 | 107 | int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts); |
3287f6d3 | 108 | int nand_torture(nand_info_t *nand, loff_t offset); |
59b5a2ad PT |
109 | int nand_verify_page_oob(nand_info_t *nand, struct mtd_oob_ops *ops, |
110 | loff_t ofs); | |
111 | int nand_verify(nand_info_t *nand, loff_t ofs, size_t len, u_char *buf); | |
2255b2d2 SR |
112 | |
113 | #define NAND_LOCK_STATUS_TIGHT 0x01 | |
2255b2d2 SR |
114 | #define NAND_LOCK_STATUS_UNLOCK 0x04 |
115 | ||
eee623a5 | 116 | int nand_lock(nand_info_t *meminfo, int tight); |
e331ab2e JH |
117 | int nand_unlock(nand_info_t *meminfo, loff_t start, size_t length, |
118 | int allexcept); | |
378adfcd | 119 | int nand_get_lock_status(nand_info_t *meminfo, loff_t offset); |
2255b2d2 | 120 | |
12c2f1ee | 121 | int nand_spl_load_image(uint32_t offs, unsigned int size, void *dst); |
bb085b87 SS |
122 | void nand_deselect(void); |
123 | ||
6d0f6bcf | 124 | #ifdef CONFIG_SYS_NAND_SELECT_DEVICE |
43a2b0e7 SR |
125 | void board_nand_select_device(struct nand_chip *nand, int chip); |
126 | #endif | |
127 | ||
e4c09508 SW |
128 | __attribute__((noreturn)) void nand_boot(void); |
129 | ||
932394ac | 130 | #endif |
c9f7351b BG |
131 | |
132 | #ifdef CONFIG_ENV_OFFSET_OOB | |
133 | #define ENV_OOB_MARKER 0x30425645 /*"EVB0" in little-endian -- offset is stored | |
134 | as block number*/ | |
135 | #define ENV_OOB_MARKER_OLD 0x30564e45 /*"ENV0" in little-endian -- offset is | |
136 | stored as byte number */ | |
137 | #define ENV_OFFSET_SIZE 8 | |
138 | int get_nand_env_oob(nand_info_t *nand, unsigned long *result); | |
139 | #endif | |
4dfd3605 | 140 | int spl_nand_erase_one(int block, int page); |