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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 | * | |
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 | |
11 | * version 2 as published by the Free Software Foundation. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
21 | * MA 02111-1307 USA | |
22 | */ | |
23 | ||
24 | #ifndef _NAND_H_ | |
25 | #define _NAND_H_ | |
26 | ||
c1783474 SW |
27 | #include <config.h> |
28 | ||
29 | /* | |
30 | * All boards using a given driver must convert to self-init | |
31 | * at the same time, so do it here. When all drivers are | |
32 | * converted, this will go away. | |
33 | */ | |
a1b81ab2 PK |
34 | #if defined(CONFIG_NAND_FSL_ELBC) || defined(CONFIG_NAND_ATMEL)\ |
35 | || defined(CONFIG_NAND_FSL_IFC) | |
c1783474 SW |
36 | #define CONFIG_SYS_NAND_SELF_INIT |
37 | #endif | |
38 | ||
9d2e3947 SW |
39 | extern void nand_init(void); |
40 | ||
7b15e2bb | 41 | #include <linux/compat.h> |
932394ac WD |
42 | #include <linux/mtd/mtd.h> |
43 | #include <linux/mtd/nand.h> | |
44 | ||
578931b3 SW |
45 | #ifdef CONFIG_SYS_NAND_SELF_INIT |
46 | void board_nand_init(void); | |
47 | int nand_register(int devnum); | |
48 | #else | |
69fb8be4 | 49 | extern int board_nand_init(struct nand_chip *nand); |
578931b3 | 50 | #endif |
69fb8be4 | 51 | |
932394ac WD |
52 | typedef struct mtd_info nand_info_t; |
53 | ||
54 | extern int nand_curr_device; | |
55 | extern nand_info_t nand_info[]; | |
56 | ||
378adfcd | 57 | static inline int nand_read(nand_info_t *info, loff_t ofs, size_t *len, u_char *buf) |
932394ac | 58 | { |
dfe64e2c | 59 | return mtd_read(info, ofs, *len, (size_t *)len, buf); |
932394ac WD |
60 | } |
61 | ||
378adfcd | 62 | static inline int nand_write(nand_info_t *info, loff_t ofs, size_t *len, u_char *buf) |
932394ac | 63 | { |
dfe64e2c | 64 | return mtd_write(info, ofs, *len, (size_t *)len, buf); |
932394ac WD |
65 | } |
66 | ||
378adfcd | 67 | static inline int nand_block_isbad(nand_info_t *info, loff_t ofs) |
932394ac | 68 | { |
dfe64e2c | 69 | return mtd_block_isbad(info, ofs); |
932394ac WD |
70 | } |
71 | ||
378adfcd | 72 | static inline int nand_erase(nand_info_t *info, loff_t off, size_t size) |
932394ac | 73 | { |
8e9655f8 WD |
74 | struct erase_info instr; |
75 | ||
76 | instr.mtd = info; | |
77 | instr.addr = off; | |
78 | instr.len = size; | |
79 | instr.callback = 0; | |
80 | ||
dfe64e2c | 81 | return mtd_erase(info, &instr); |
932394ac WD |
82 | } |
83 | ||
2255b2d2 SR |
84 | |
85 | /***************************************************************************** | |
86 | * declarations from nand_util.c | |
87 | ****************************************************************************/ | |
88 | ||
89 | struct nand_write_options { | |
90 | u_char *buffer; /* memory block containing image to write */ | |
91 | ulong length; /* number of bytes to write */ | |
92 | ulong offset; /* start address in NAND */ | |
93 | int quiet; /* don't display progress messages */ | |
94 | int autoplace; /* if true use auto oob layout */ | |
95 | int forcejffs2; /* force jffs2 oob layout */ | |
96 | int forceyaffs; /* force yaffs oob layout */ | |
97 | int noecc; /* write without ecc */ | |
98 | int writeoob; /* image contains oob data */ | |
99 | int pad; /* pad to page size */ | |
100 | int blockalign; /* 1|2|4 set multiple of eraseblocks | |
101 | * to align to */ | |
102 | }; | |
103 | ||
104 | typedef struct nand_write_options nand_write_options_t; | |
cfa460ad | 105 | typedef struct mtd_oob_ops mtd_oob_ops_t; |
2255b2d2 SR |
106 | |
107 | struct nand_read_options { | |
108 | u_char *buffer; /* memory block in which read image is written*/ | |
109 | ulong length; /* number of bytes to read */ | |
110 | ulong offset; /* start address in NAND */ | |
111 | int quiet; /* don't display progress messages */ | |
112 | int readoob; /* put oob data in image */ | |
113 | }; | |
114 | ||
115 | typedef struct nand_read_options nand_read_options_t; | |
116 | ||
117 | struct nand_erase_options { | |
30486322 SW |
118 | loff_t length; /* number of bytes to erase */ |
119 | loff_t offset; /* first address in NAND to erase */ | |
2255b2d2 SR |
120 | int quiet; /* don't display progress messages */ |
121 | int jffs2; /* if true: format for jffs2 usage | |
122 | * (write appropriate cleanmarker blocks) */ | |
123 | int scrub; /* if true, really clean NAND by erasing | |
124 | * bad blocks (UNSAFE) */ | |
30486322 SW |
125 | |
126 | /* Don't include skipped bad blocks in size to be erased */ | |
127 | int spread; | |
2255b2d2 SR |
128 | }; |
129 | ||
130 | typedef struct nand_erase_options nand_erase_options_t; | |
131 | ||
378adfcd | 132 | int nand_read_skip_bad(nand_info_t *nand, loff_t offset, size_t *length, |
c39d6a0e | 133 | size_t *actual, loff_t lim, u_char *buffer); |
a6c9aa1f | 134 | |
c135456f BG |
135 | #define WITH_YAFFS_OOB (1 << 0) /* whether write with yaffs format. This flag |
136 | * is a 'mode' meaning it cannot be mixed with | |
137 | * other flags */ | |
169d54d8 | 138 | #define WITH_DROP_FFS (1 << 1) /* drop trailing all-0xff pages */ |
a6c9aa1f | 139 | |
378adfcd | 140 | int nand_write_skip_bad(nand_info_t *nand, loff_t offset, size_t *length, |
c39d6a0e | 141 | size_t *actual, loff_t lim, u_char *buffer, int flags); |
2255b2d2 | 142 | int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts); |
3287f6d3 | 143 | int nand_torture(nand_info_t *nand, loff_t offset); |
2255b2d2 SR |
144 | |
145 | #define NAND_LOCK_STATUS_TIGHT 0x01 | |
2255b2d2 SR |
146 | #define NAND_LOCK_STATUS_UNLOCK 0x04 |
147 | ||
eee623a5 | 148 | int nand_lock(nand_info_t *meminfo, int tight); |
e331ab2e JH |
149 | int nand_unlock(nand_info_t *meminfo, loff_t start, size_t length, |
150 | int allexcept); | |
378adfcd | 151 | int nand_get_lock_status(nand_info_t *meminfo, loff_t offset); |
2255b2d2 | 152 | |
12c2f1ee | 153 | int nand_spl_load_image(uint32_t offs, unsigned int size, void *dst); |
bb085b87 SS |
154 | void nand_deselect(void); |
155 | ||
6d0f6bcf | 156 | #ifdef CONFIG_SYS_NAND_SELECT_DEVICE |
43a2b0e7 SR |
157 | void board_nand_select_device(struct nand_chip *nand, int chip); |
158 | #endif | |
159 | ||
e4c09508 SW |
160 | __attribute__((noreturn)) void nand_boot(void); |
161 | ||
932394ac | 162 | #endif |
c9f7351b BG |
163 | |
164 | #ifdef CONFIG_ENV_OFFSET_OOB | |
165 | #define ENV_OOB_MARKER 0x30425645 /*"EVB0" in little-endian -- offset is stored | |
166 | as block number*/ | |
167 | #define ENV_OOB_MARKER_OLD 0x30564e45 /*"ENV0" in little-endian -- offset is | |
168 | stored as byte number */ | |
169 | #define ENV_OFFSET_SIZE 8 | |
170 | int get_nand_env_oob(nand_info_t *nand, unsigned long *result); | |
171 | #endif |