blob: 23493f7e9841122d683d074445ecb98348ca17b4 [file] [log] [blame]
Wolfgang Denk932394a2005-08-17 12:55:25 +02001/*
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
Wolfgang Denkac7eb8a32005-09-14 23:53:32 +020027#include <linux/mtd/compat.h>
Wolfgang Denk932394a2005-08-17 12:55:25 +020028#include <linux/mtd/mtd.h>
29#include <linux/mtd/nand.h>
30
31typedef struct mtd_info nand_info_t;
32
33extern int nand_curr_device;
34extern nand_info_t nand_info[];
35
36static inline int nand_read(nand_info_t *info, ulong ofs, ulong *len, u_char *buf)
37{
Bartlomiej Sieka038ccac2006-02-24 09:37:22 +010038 return info->read(info, ofs, *len, (size_t *)len, buf);
Wolfgang Denk932394a2005-08-17 12:55:25 +020039}
40
41static inline int nand_write(nand_info_t *info, ulong ofs, ulong *len, u_char *buf)
42{
Bartlomiej Sieka038ccac2006-02-24 09:37:22 +010043 return info->write(info, ofs, *len, (size_t *)len, buf);
Wolfgang Denk932394a2005-08-17 12:55:25 +020044}
45
46static inline int nand_block_isbad(nand_info_t *info, ulong ofs)
47{
48 return info->block_isbad(info, ofs);
49}
50
51static inline int nand_erase(nand_info_t *info, ulong off, ulong size)
52{
Wolfgang Denk8e9655f2005-11-02 14:29:12 +010053 struct erase_info instr;
54
55 instr.mtd = info;
56 instr.addr = off;
57 instr.len = size;
58 instr.callback = 0;
59
60 return info->erase(info, &instr);
Wolfgang Denk932394a2005-08-17 12:55:25 +020061}
62
Stefan Roese2255b2d2006-10-10 12:36:02 +020063
64/*****************************************************************************
65 * declarations from nand_util.c
66 ****************************************************************************/
67
68struct nand_write_options {
69 u_char *buffer; /* memory block containing image to write */
70 ulong length; /* number of bytes to write */
71 ulong offset; /* start address in NAND */
72 int quiet; /* don't display progress messages */
73 int autoplace; /* if true use auto oob layout */
74 int forcejffs2; /* force jffs2 oob layout */
75 int forceyaffs; /* force yaffs oob layout */
76 int noecc; /* write without ecc */
77 int writeoob; /* image contains oob data */
78 int pad; /* pad to page size */
79 int blockalign; /* 1|2|4 set multiple of eraseblocks
80 * to align to */
81};
82
83typedef struct nand_write_options nand_write_options_t;
84
85struct nand_read_options {
86 u_char *buffer; /* memory block in which read image is written*/
87 ulong length; /* number of bytes to read */
88 ulong offset; /* start address in NAND */
89 int quiet; /* don't display progress messages */
90 int readoob; /* put oob data in image */
91};
92
93typedef struct nand_read_options nand_read_options_t;
94
95struct nand_erase_options {
96 ulong length; /* number of bytes to erase */
97 ulong offset; /* first address in NAND to erase */
98 int quiet; /* don't display progress messages */
99 int jffs2; /* if true: format for jffs2 usage
100 * (write appropriate cleanmarker blocks) */
101 int scrub; /* if true, really clean NAND by erasing
102 * bad blocks (UNSAFE) */
103};
104
105typedef struct nand_erase_options nand_erase_options_t;
106
107int nand_write_opts(nand_info_t *meminfo, const nand_write_options_t *opts);
108
109int nand_read_opts(nand_info_t *meminfo, const nand_read_options_t *opts);
110int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts);
111
112#define NAND_LOCK_STATUS_TIGHT 0x01
113#define NAND_LOCK_STATUS_LOCK 0x02
114#define NAND_LOCK_STATUS_UNLOCK 0x04
115
116int nand_lock( nand_info_t *meminfo, int tight );
117int nand_unlock( nand_info_t *meminfo, ulong start, ulong length );
118int nand_get_lock_status(nand_info_t *meminfo, ulong offset);
119
Stefan Roese43a2b0e2006-10-20 14:28:52 +0200120#ifdef CFG_NAND_SELECT_DEVICE
121void board_nand_select_device(struct nand_chip *nand, int chip);
122#endif
123
Wolfgang Denk932394a2005-08-17 12:55:25 +0200124#endif