Fixed tools/env utilities
[u-boot-openmoko/mini2440.git] / include / nand.h
blob3c0752ea12add98ca4c67e736b09434ea684fc78
1 /*
2 * (C) Copyright 2005
3 * 2N Telekomunikace, a.s. <www.2n.cz>
4 * Ladislav Michl <michl@2n.cz>
6 * See file CREDITS for list of people who contributed to this
7 * project.
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.
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.
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
24 #ifndef _NAND_H_
25 #define _NAND_H_
27 #include <linux/mtd/compat.h>
28 #include <linux/mtd/mtd.h>
29 #include <linux/mtd/nand.h>
31 typedef struct mtd_info nand_info_t;
33 extern int nand_curr_device;
34 extern nand_info_t nand_info[];
35 extern void nand_init(void);
37 static inline int nand_read(nand_info_t *info, ulong ofs, ulong *len, u_char *buf)
39 return info->read(info, ofs, *len, (size_t *)len, buf);
42 static inline int nand_write(nand_info_t *info, ulong ofs, ulong *len, u_char *buf)
44 return info->write(info, ofs, *len, (size_t *)len, buf);
47 static inline int nand_block_isbad(nand_info_t *info, ulong ofs)
49 return info->block_isbad(info, ofs);
52 static inline int nand_erase(nand_info_t *info, ulong off, ulong size)
54 struct erase_info instr;
56 instr.mtd = info;
57 instr.addr = off;
58 instr.len = size;
59 instr.callback = 0;
61 return info->erase(info, &instr);
65 /*****************************************************************************
66 * declarations from nand_util.c
67 ****************************************************************************/
69 struct nand_write_options {
70 u_char *buffer; /* memory block containing image to write */
71 ulong length; /* number of bytes to write */
72 ulong offset; /* start address in NAND */
73 int quiet; /* don't display progress messages */
74 int autoplace; /* if true use auto oob layout */
75 int forcejffs2; /* force jffs2 oob layout */
76 int forceyaffs; /* force yaffs oob layout */
77 int noecc; /* write without ecc */
78 int writeoob; /* image contains oob data */
79 int pad; /* pad to page size */
80 int blockalign; /* 1|2|4 set multiple of eraseblocks
81 * to align to */
84 typedef struct nand_write_options nand_write_options_t;
86 struct nand_read_options {
87 u_char *buffer; /* memory block in which read image is written*/
88 ulong length; /* number of bytes to read */
89 ulong offset; /* start address in NAND */
90 int quiet; /* don't display progress messages */
91 int readoob; /* put oob data in image */
94 typedef struct nand_read_options nand_read_options_t;
96 struct nand_erase_options {
97 ulong length; /* number of bytes to erase */
98 ulong offset; /* first address in NAND to erase */
99 int quiet; /* don't display progress messages */
100 int jffs2; /* if true: format for jffs2 usage
101 * (write appropriate cleanmarker blocks) */
102 int scrub; /* if true, really clean NAND by erasing
103 * bad blocks (UNSAFE) */
106 typedef struct nand_erase_options nand_erase_options_t;
108 int nand_write_opts(nand_info_t *meminfo, const nand_write_options_t *opts);
110 int nand_read_opts(nand_info_t *meminfo, const nand_read_options_t *opts);
111 int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts);
113 #define NAND_LOCK_STATUS_TIGHT 0x01
114 #define NAND_LOCK_STATUS_LOCK 0x02
115 #define NAND_LOCK_STATUS_UNLOCK 0x04
117 int nand_lock( nand_info_t *meminfo, int tight );
118 int nand_unlock( nand_info_t *meminfo, ulong start, ulong length );
119 int nand_get_lock_status(nand_info_t *meminfo, ulong offset);
121 #ifdef CFG_NAND_SELECT_DEVICE
122 void board_nand_select_device(struct nand_chip *nand, int chip);
123 #endif
125 #endif