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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 | ||
9d2e3947 SW |
27 | extern void nand_init(void); |
28 | ||
cc4a0cee | 29 | #ifndef CONFIG_NAND_LEGACY |
ac7eb8a3 | 30 | #include <linux/mtd/compat.h> |
932394ac WD |
31 | #include <linux/mtd/mtd.h> |
32 | #include <linux/mtd/nand.h> | |
33 | ||
69fb8be4 MF |
34 | extern int board_nand_init(struct nand_chip *nand); |
35 | ||
932394ac WD |
36 | typedef struct mtd_info nand_info_t; |
37 | ||
38 | extern int nand_curr_device; | |
39 | extern nand_info_t nand_info[]; | |
40 | ||
4ca79f47 | 41 | static inline int nand_read(nand_info_t *info, off_t ofs, size_t *len, u_char *buf) |
932394ac | 42 | { |
038ccac5 | 43 | return info->read(info, ofs, *len, (size_t *)len, buf); |
932394ac WD |
44 | } |
45 | ||
4ca79f47 | 46 | static inline int nand_write(nand_info_t *info, off_t ofs, size_t *len, u_char *buf) |
932394ac | 47 | { |
038ccac5 | 48 | return info->write(info, ofs, *len, (size_t *)len, buf); |
932394ac WD |
49 | } |
50 | ||
4ca79f47 | 51 | static inline int nand_block_isbad(nand_info_t *info, off_t ofs) |
932394ac WD |
52 | { |
53 | return info->block_isbad(info, ofs); | |
54 | } | |
55 | ||
4ca79f47 | 56 | static inline int nand_erase(nand_info_t *info, off_t off, size_t size) |
932394ac | 57 | { |
8e9655f8 WD |
58 | struct erase_info instr; |
59 | ||
60 | instr.mtd = info; | |
61 | instr.addr = off; | |
62 | instr.len = size; | |
63 | instr.callback = 0; | |
64 | ||
65 | return info->erase(info, &instr); | |
932394ac WD |
66 | } |
67 | ||
2255b2d2 SR |
68 | |
69 | /***************************************************************************** | |
70 | * declarations from nand_util.c | |
71 | ****************************************************************************/ | |
72 | ||
73 | struct nand_write_options { | |
74 | u_char *buffer; /* memory block containing image to write */ | |
75 | ulong length; /* number of bytes to write */ | |
76 | ulong offset; /* start address in NAND */ | |
77 | int quiet; /* don't display progress messages */ | |
78 | int autoplace; /* if true use auto oob layout */ | |
79 | int forcejffs2; /* force jffs2 oob layout */ | |
80 | int forceyaffs; /* force yaffs oob layout */ | |
81 | int noecc; /* write without ecc */ | |
82 | int writeoob; /* image contains oob data */ | |
83 | int pad; /* pad to page size */ | |
84 | int blockalign; /* 1|2|4 set multiple of eraseblocks | |
85 | * to align to */ | |
86 | }; | |
87 | ||
88 | typedef struct nand_write_options nand_write_options_t; | |
cfa460ad | 89 | typedef struct mtd_oob_ops mtd_oob_ops_t; |
2255b2d2 SR |
90 | |
91 | struct nand_read_options { | |
92 | u_char *buffer; /* memory block in which read image is written*/ | |
93 | ulong length; /* number of bytes to read */ | |
94 | ulong offset; /* start address in NAND */ | |
95 | int quiet; /* don't display progress messages */ | |
96 | int readoob; /* put oob data in image */ | |
97 | }; | |
98 | ||
99 | typedef struct nand_read_options nand_read_options_t; | |
100 | ||
101 | struct nand_erase_options { | |
102 | ulong length; /* number of bytes to erase */ | |
103 | ulong offset; /* first address in NAND to erase */ | |
104 | int quiet; /* don't display progress messages */ | |
105 | int jffs2; /* if true: format for jffs2 usage | |
106 | * (write appropriate cleanmarker blocks) */ | |
107 | int scrub; /* if true, really clean NAND by erasing | |
108 | * bad blocks (UNSAFE) */ | |
109 | }; | |
110 | ||
111 | typedef struct nand_erase_options nand_erase_options_t; | |
112 | ||
dfbf617f | 113 | int nand_read_skip_bad(nand_info_t *nand, size_t offset, size_t *length, |
4b070809 | 114 | u_char *buffer); |
dfbf617f | 115 | int nand_write_skip_bad(nand_info_t *nand, size_t offset, size_t *length, |
4b070809 | 116 | u_char *buffer); |
2255b2d2 SR |
117 | int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts); |
118 | ||
119 | #define NAND_LOCK_STATUS_TIGHT 0x01 | |
120 | #define NAND_LOCK_STATUS_LOCK 0x02 | |
121 | #define NAND_LOCK_STATUS_UNLOCK 0x04 | |
122 | ||
123 | int nand_lock( nand_info_t *meminfo, int tight ); | |
124 | int nand_unlock( nand_info_t *meminfo, ulong start, ulong length ); | |
125 | int nand_get_lock_status(nand_info_t *meminfo, ulong offset); | |
126 | ||
6d0f6bcf | 127 | #ifdef CONFIG_SYS_NAND_SELECT_DEVICE |
43a2b0e7 SR |
128 | void board_nand_select_device(struct nand_chip *nand, int chip); |
129 | #endif | |
130 | ||
e4c09508 SW |
131 | __attribute__((noreturn)) void nand_boot(void); |
132 | ||
cc4a0cee | 133 | #endif /* !CONFIG_NAND_LEGACY */ |
932394ac | 134 | #endif |