125 lines
3.8 KiB
C
125 lines
3.8 KiB
C
|
/*
|
||
|
|
* (C) Copyright 2005
|
||
|
|
* 2N Telekomunikace, a.s. <www.2n.cz>
|
||
|
|
* Ladislav Michl <michl@2n.cz>
|
||
|
|
*
|
||
|
|
* See file CREDITS for list of people who contributed to this
|
||
|
|
* project.
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or
|
||
|
|
* modify it under the terms of the GNU General Public License
|
||
|
|
* version 2 as published by the Free Software Foundation.
|
||
|
|
*
|
||
|
|
* This program is distributed in the hope that it will be useful,
|
||
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
|
* GNU General Public License for more details.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU General Public License
|
||
|
|
* along with this program; if not, write to the Free Software
|
||
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
|
||
|
|
* MA 02111-1307 USA
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef _NAND_H_
|
||
|
|
#define _NAND_H_
|
||
|
|
|
||
|
|
#include <linux/mtd/compat.h>
|
||
|
|
#include <linux/mtd/mtd.h>
|
||
|
|
#include <linux/mtd/nand.h>
|
||
|
|
|
||
|
|
typedef struct mtd_info nand_info_t;
|
||
|
|
|
||
|
|
extern int nand_curr_device;
|
||
|
|
extern nand_info_t nand_info[];
|
||
|
|
|
||
|
|
static inline int nand_read(nand_info_t *info, ulong ofs, ulong *len, u_char *buf)
|
||
|
|
{
|
||
|
|
return info->read(info, ofs, *len, (size_t *)len, buf);
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline int nand_write(nand_info_t *info, ulong ofs, ulong *len, u_char *buf)
|
||
|
|
{
|
||
|
|
return info->write(info, ofs, *len, (size_t *)len, buf);
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline int nand_block_isbad(nand_info_t *info, ulong ofs)
|
||
|
|
{
|
||
|
|
return info->block_isbad(info, ofs);
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline int nand_erase(nand_info_t *info, ulong off, ulong size)
|
||
|
|
{
|
||
|
|
struct erase_info instr;
|
||
|
|
|
||
|
|
instr.mtd = info;
|
||
|
|
instr.addr = off;
|
||
|
|
instr.len = size;
|
||
|
|
instr.callback = 0;
|
||
|
|
|
||
|
|
return info->erase(info, &instr);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/*****************************************************************************
|
||
|
|
* declarations from nand_util.c
|
||
|
|
****************************************************************************/
|
||
|
|
|
||
|
|
struct nand_write_options {
|
||
|
|
u_char *buffer; /* memory block containing image to write */
|
||
|
|
ulong length; /* number of bytes to write */
|
||
|
|
ulong offset; /* start address in NAND */
|
||
|
|
int quiet; /* don't display progress messages */
|
||
|
|
int autoplace; /* if true use auto oob layout */
|
||
|
|
int forcejffs2; /* force jffs2 oob layout */
|
||
|
|
int forceyaffs; /* force yaffs oob layout */
|
||
|
|
int noecc; /* write without ecc */
|
||
|
|
int writeoob; /* image contains oob data */
|
||
|
|
int pad; /* pad to page size */
|
||
|
|
int blockalign; /* 1|2|4 set multiple of eraseblocks
|
||
|
|
* to align to */
|
||
|
|
};
|
||
|
|
|
||
|
|
typedef struct nand_write_options nand_write_options_t;
|
||
|
|
|
||
|
|
struct nand_read_options {
|
||
|
|
u_char *buffer; /* memory block in which read image is written*/
|
||
|
|
ulong length; /* number of bytes to read */
|
||
|
|
ulong offset; /* start address in NAND */
|
||
|
|
int quiet; /* don't display progress messages */
|
||
|
|
int readoob; /* put oob data in image */
|
||
|
|
};
|
||
|
|
|
||
|
|
typedef struct nand_read_options nand_read_options_t;
|
||
|
|
|
||
|
|
struct nand_erase_options {
|
||
|
|
ulong length; /* number of bytes to erase */
|
||
|
|
ulong offset; /* first address in NAND to erase */
|
||
|
|
int quiet; /* don't display progress messages */
|
||
|
|
int jffs2; /* if true: format for jffs2 usage
|
||
|
|
* (write appropriate cleanmarker blocks) */
|
||
|
|
int scrub; /* if true, really clean NAND by erasing
|
||
|
|
* bad blocks (UNSAFE) */
|
||
|
|
};
|
||
|
|
|
||
|
|
typedef struct nand_erase_options nand_erase_options_t;
|
||
|
|
|
||
|
|
int nand_write_opts(nand_info_t *meminfo, const nand_write_options_t *opts);
|
||
|
|
|
||
|
|
int nand_read_opts(nand_info_t *meminfo, const nand_read_options_t *opts);
|
||
|
|
int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts);
|
||
|
|
|
||
|
|
#define NAND_LOCK_STATUS_TIGHT 0x01
|
||
|
|
#define NAND_LOCK_STATUS_LOCK 0x02
|
||
|
|
#define NAND_LOCK_STATUS_UNLOCK 0x04
|
||
|
|
|
||
|
|
int nand_lock( nand_info_t *meminfo, int tight );
|
||
|
|
int nand_unlock( nand_info_t *meminfo, ulong start, ulong length );
|
||
|
|
int nand_get_lock_status(nand_info_t *meminfo, ulong offset);
|
||
|
|
|
||
|
|
#ifdef CFG_NAND_SELECT_DEVICE
|
||
|
|
void board_nand_select_device(struct nand_chip *nand, int chip);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif
|