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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
Scott Wood9d2e3942008-07-09 17:47:52 -050027extern void nand_init(void);
28
Jean-Christophe PLAGNIOL-VILLARDcc4a0ce2008-08-13 01:40:43 +020029#ifndef CONFIG_NAND_LEGACY
Wolfgang Denkac7eb8a32005-09-14 23:53:32 +020030#include <linux/mtd/compat.h>
Wolfgang Denk932394a2005-08-17 12:55:25 +020031#include <linux/mtd/mtd.h>
32#include <linux/mtd/nand.h>
33
Mike Frysinger69fb8be2008-12-06 02:40:55 -050034extern int board_nand_init(struct nand_chip *nand);
35
Wolfgang Denk932394a2005-08-17 12:55:25 +020036typedef struct mtd_info nand_info_t;
37
38extern int nand_curr_device;
39extern nand_info_t nand_info[];
40
Wolfgang Denk4ca79f42008-04-28 12:08:18 +020041static inline int nand_read(nand_info_t *info, off_t ofs, size_t *len, u_char *buf)
Wolfgang Denk932394a2005-08-17 12:55:25 +020042{
Bartlomiej Sieka038ccac2006-02-24 09:37:22 +010043 return info->read(info, ofs, *len, (size_t *)len, buf);
Wolfgang Denk932394a2005-08-17 12:55:25 +020044}
45
Wolfgang Denk4ca79f42008-04-28 12:08:18 +020046static inline int nand_write(nand_info_t *info, off_t ofs, size_t *len, u_char *buf)
Wolfgang Denk932394a2005-08-17 12:55:25 +020047{
Bartlomiej Sieka038ccac2006-02-24 09:37:22 +010048 return info->write(info, ofs, *len, (size_t *)len, buf);
Wolfgang Denk932394a2005-08-17 12:55:25 +020049}
50
Wolfgang Denk4ca79f42008-04-28 12:08:18 +020051static inline int nand_block_isbad(nand_info_t *info, off_t ofs)
Wolfgang Denk932394a2005-08-17 12:55:25 +020052{
53 return info->block_isbad(info, ofs);
54}
55
Wolfgang Denk4ca79f42008-04-28 12:08:18 +020056static inline int nand_erase(nand_info_t *info, off_t off, size_t size)
Wolfgang Denk932394a2005-08-17 12:55:25 +020057{
Wolfgang Denk8e9655f2005-11-02 14:29:12 +010058 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);
Wolfgang Denk932394a2005-08-17 12:55:25 +020066}
67
Stefan Roese2255b2d2006-10-10 12:36:02 +020068
69/*****************************************************************************
70 * declarations from nand_util.c
71 ****************************************************************************/
72
73struct 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
88typedef struct nand_write_options nand_write_options_t;
William Juulcfa460a2007-10-31 13:53:06 +010089typedef struct mtd_oob_ops mtd_oob_ops_t;
Stefan Roese2255b2d2006-10-10 12:36:02 +020090
91struct 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
99typedef struct nand_read_options nand_read_options_t;
100
101struct 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
111typedef struct nand_erase_options nand_erase_options_t;
112
Scott Wooddfbf6172008-06-12 13:20:16 -0500113int nand_read_skip_bad(nand_info_t *nand, size_t offset, size_t *length,
Wolfgang Denk4b070802008-08-14 14:41:06 +0200114 u_char *buffer);
Scott Wooddfbf6172008-06-12 13:20:16 -0500115int nand_write_skip_bad(nand_info_t *nand, size_t offset, size_t *length,
Wolfgang Denk4b070802008-08-14 14:41:06 +0200116 u_char *buffer);
Stefan Roese2255b2d2006-10-10 12:36:02 +0200117int 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
123int nand_lock( nand_info_t *meminfo, int tight );
124int nand_unlock( nand_info_t *meminfo, ulong start, ulong length );
125int nand_get_lock_status(nand_info_t *meminfo, ulong offset);
126
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200127#ifdef CONFIG_SYS_NAND_SELECT_DEVICE
Stefan Roese43a2b0e2006-10-20 14:28:52 +0200128void board_nand_select_device(struct nand_chip *nand, int chip);
129#endif
130
Scott Woode4c09502008-06-30 14:13:28 -0500131__attribute__((noreturn)) void nand_boot(void);
132
Jean-Christophe PLAGNIOL-VILLARDcc4a0ce2008-08-13 01:40:43 +0200133#endif /* !CONFIG_NAND_LEGACY */
Wolfgang Denk932394a2005-08-17 12:55:25 +0200134#endif