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932394ac WD |
1 | /* |
2 | * (C) Copyright 2005 | |
3 | * 2N Telekomunikace, a.s. <www.2n.cz> | |
4 | * Ladislav Michl <[email protected]> | |
5 | * | |
6 | * See file CREDITS for list of people who contributed to this | |
7 | * project. | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or | |
10 | * modify it under the terms of the GNU General Public License | |
3765b3e7 | 11 | * version 2 as published by the Free Software Foundation. |
932394ac WD |
12 | */ |
13 | ||
14 | #ifndef _NAND_H_ | |
15 | #define _NAND_H_ | |
16 | ||
c1783474 SW |
17 | #include <config.h> |
18 | ||
19 | /* | |
20 | * All boards using a given driver must convert to self-init | |
21 | * at the same time, so do it here. When all drivers are | |
22 | * converted, this will go away. | |
23 | */ | |
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 | |
28 | ||
9d2e3947 SW |
29 | extern void nand_init(void); |
30 | ||
7b15e2bb | 31 | #include <linux/compat.h> |
932394ac WD |
32 | #include <linux/mtd/mtd.h> |
33 | #include <linux/mtd/nand.h> | |
34 | ||
578931b3 SW |
35 | #ifdef CONFIG_SYS_NAND_SELF_INIT |
36 | void board_nand_init(void); | |
37 | int nand_register(int devnum); | |
38 | #else | |
69fb8be4 | 39 | extern int board_nand_init(struct nand_chip *nand); |
578931b3 | 40 | #endif |
69fb8be4 | 41 | |
932394ac WD |
42 | typedef struct mtd_info nand_info_t; |
43 | ||
44 | extern int nand_curr_device; | |
45 | extern nand_info_t nand_info[]; | |
46 | ||
378adfcd | 47 | static inline int nand_read(nand_info_t *info, loff_t ofs, size_t *len, u_char *buf) |
932394ac | 48 | { |
dfe64e2c | 49 | return mtd_read(info, ofs, *len, (size_t *)len, buf); |
932394ac WD |
50 | } |
51 | ||
378adfcd | 52 | static inline int nand_write(nand_info_t *info, loff_t ofs, size_t *len, u_char *buf) |
932394ac | 53 | { |
dfe64e2c | 54 | return mtd_write(info, ofs, *len, (size_t *)len, buf); |
932394ac WD |
55 | } |
56 | ||
378adfcd | 57 | static inline int nand_block_isbad(nand_info_t *info, loff_t ofs) |
932394ac | 58 | { |
dfe64e2c | 59 | return mtd_block_isbad(info, ofs); |
932394ac WD |
60 | } |
61 | ||
378adfcd | 62 | static inline int nand_erase(nand_info_t *info, loff_t off, size_t size) |
932394ac | 63 | { |
8e9655f8 WD |
64 | struct erase_info instr; |
65 | ||
66 | instr.mtd = info; | |
67 | instr.addr = off; | |
68 | instr.len = size; | |
69 | instr.callback = 0; | |
70 | ||
dfe64e2c | 71 | return mtd_erase(info, &instr); |
932394ac WD |
72 | } |
73 | ||
2255b2d2 SR |
74 | |
75 | /***************************************************************************** | |
76 | * declarations from nand_util.c | |
77 | ****************************************************************************/ | |
78 | ||
79 | struct nand_write_options { | |
80 | u_char *buffer; /* memory block containing image to write */ | |
81 | ulong length; /* number of bytes to write */ | |
82 | ulong offset; /* start address in NAND */ | |
83 | int quiet; /* don't display progress messages */ | |
84 | int autoplace; /* if true use auto oob layout */ | |
85 | int forcejffs2; /* force jffs2 oob layout */ | |
86 | int forceyaffs; /* force yaffs oob layout */ | |
87 | int noecc; /* write without ecc */ | |
88 | int writeoob; /* image contains oob data */ | |
89 | int pad; /* pad to page size */ | |
90 | int blockalign; /* 1|2|4 set multiple of eraseblocks | |
91 | * to align to */ | |
92 | }; | |
93 | ||
94 | typedef struct nand_write_options nand_write_options_t; | |
cfa460ad | 95 | typedef struct mtd_oob_ops mtd_oob_ops_t; |
2255b2d2 SR |
96 | |
97 | struct nand_read_options { | |
98 | u_char *buffer; /* memory block in which read image is written*/ | |
99 | ulong length; /* number of bytes to read */ | |
100 | ulong offset; /* start address in NAND */ | |
101 | int quiet; /* don't display progress messages */ | |
102 | int readoob; /* put oob data in image */ | |
103 | }; | |
104 | ||
105 | typedef struct nand_read_options nand_read_options_t; | |
106 | ||
107 | struct nand_erase_options { | |
30486322 SW |
108 | loff_t length; /* number of bytes to erase */ |
109 | loff_t offset; /* first address in NAND to erase */ | |
2255b2d2 SR |
110 | int quiet; /* don't display progress messages */ |
111 | int jffs2; /* if true: format for jffs2 usage | |
112 | * (write appropriate cleanmarker blocks) */ | |
113 | int scrub; /* if true, really clean NAND by erasing | |
114 | * bad blocks (UNSAFE) */ | |
30486322 SW |
115 | |
116 | /* Don't include skipped bad blocks in size to be erased */ | |
117 | int spread; | |
a67cc37e HS |
118 | /* maximum size that actual may be in order to not exceed the buf */ |
119 | loff_t lim; | |
2255b2d2 SR |
120 | }; |
121 | ||
122 | typedef struct nand_erase_options nand_erase_options_t; | |
123 | ||
378adfcd | 124 | int nand_read_skip_bad(nand_info_t *nand, loff_t offset, size_t *length, |
c39d6a0e | 125 | size_t *actual, loff_t lim, u_char *buffer); |
a6c9aa1f | 126 | |
c135456f BG |
127 | #define WITH_YAFFS_OOB (1 << 0) /* whether write with yaffs format. This flag |
128 | * is a 'mode' meaning it cannot be mixed with | |
129 | * other flags */ | |
169d54d8 | 130 | #define WITH_DROP_FFS (1 << 1) /* drop trailing all-0xff pages */ |
a6c9aa1f | 131 | |
378adfcd | 132 | int nand_write_skip_bad(nand_info_t *nand, loff_t offset, size_t *length, |
c39d6a0e | 133 | size_t *actual, loff_t lim, u_char *buffer, int flags); |
2255b2d2 | 134 | int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts); |
3287f6d3 | 135 | int nand_torture(nand_info_t *nand, loff_t offset); |
2255b2d2 SR |
136 | |
137 | #define NAND_LOCK_STATUS_TIGHT 0x01 | |
2255b2d2 SR |
138 | #define NAND_LOCK_STATUS_UNLOCK 0x04 |
139 | ||
eee623a5 | 140 | int nand_lock(nand_info_t *meminfo, int tight); |
e331ab2e JH |
141 | int nand_unlock(nand_info_t *meminfo, loff_t start, size_t length, |
142 | int allexcept); | |
378adfcd | 143 | int nand_get_lock_status(nand_info_t *meminfo, loff_t offset); |
2255b2d2 | 144 | |
12c2f1ee | 145 | int nand_spl_load_image(uint32_t offs, unsigned int size, void *dst); |
bb085b87 SS |
146 | void nand_deselect(void); |
147 | ||
6d0f6bcf | 148 | #ifdef CONFIG_SYS_NAND_SELECT_DEVICE |
43a2b0e7 SR |
149 | void board_nand_select_device(struct nand_chip *nand, int chip); |
150 | #endif | |
151 | ||
e4c09508 SW |
152 | __attribute__((noreturn)) void nand_boot(void); |
153 | ||
932394ac | 154 | #endif |
c9f7351b BG |
155 | |
156 | #ifdef CONFIG_ENV_OFFSET_OOB | |
157 | #define ENV_OOB_MARKER 0x30425645 /*"EVB0" in little-endian -- offset is stored | |
158 | as block number*/ | |
159 | #define ENV_OOB_MARKER_OLD 0x30564e45 /*"ENV0" in little-endian -- offset is | |
160 | stored as byte number */ | |
161 | #define ENV_OFFSET_SIZE 8 | |
162 | int get_nand_env_oob(nand_info_t *nand, unsigned long *result); | |
163 | #endif |