mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-21 17:38:51 +09:00
![Benoît Thébaudeau](/assets/img/avatar_default.png)
This patch adds a NAND Flash torture feature, which is useful as a block stress test to determine if a block is still good and reliable (or should be marked as bad), e.g. after a write error. This code is ported from mtd-utils' lib/libmtd.c. Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com> Cc: Scott Wood <scottwood@freescale.com> [scottwood@freescale.com: removed unnec. ifdef and unwrapped error strings] Signed-off-by: Scott Wood <scottwood@freescale.com>
171 lines
5.2 KiB
C
171 lines
5.2 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 <config.h>
|
|
|
|
/*
|
|
* All boards using a given driver must convert to self-init
|
|
* at the same time, so do it here. When all drivers are
|
|
* converted, this will go away.
|
|
*/
|
|
#if defined(CONFIG_NAND_FSL_ELBC) || defined(CONFIG_NAND_ATMEL)
|
|
#define CONFIG_SYS_NAND_SELF_INIT
|
|
#endif
|
|
|
|
extern void nand_init(void);
|
|
|
|
#include <linux/compat.h>
|
|
#include <linux/mtd/mtd.h>
|
|
#include <linux/mtd/nand.h>
|
|
|
|
#ifdef CONFIG_SYS_NAND_SELF_INIT
|
|
void board_nand_init(void);
|
|
int nand_register(int devnum);
|
|
#else
|
|
extern int board_nand_init(struct nand_chip *nand);
|
|
#endif
|
|
|
|
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, loff_t ofs, size_t *len, u_char *buf)
|
|
{
|
|
return info->read(info, ofs, *len, (size_t *)len, buf);
|
|
}
|
|
|
|
static inline int nand_write(nand_info_t *info, loff_t ofs, size_t *len, u_char *buf)
|
|
{
|
|
return info->write(info, ofs, *len, (size_t *)len, buf);
|
|
}
|
|
|
|
static inline int nand_block_isbad(nand_info_t *info, loff_t ofs)
|
|
{
|
|
return info->block_isbad(info, ofs);
|
|
}
|
|
|
|
static inline int nand_erase(nand_info_t *info, loff_t off, size_t 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;
|
|
typedef struct mtd_oob_ops mtd_oob_ops_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 {
|
|
loff_t length; /* number of bytes to erase */
|
|
loff_t 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) */
|
|
|
|
/* Don't include skipped bad blocks in size to be erased */
|
|
int spread;
|
|
};
|
|
|
|
typedef struct nand_erase_options nand_erase_options_t;
|
|
|
|
int nand_read_skip_bad(nand_info_t *nand, loff_t offset, size_t *length,
|
|
u_char *buffer);
|
|
|
|
#define WITH_YAFFS_OOB (1 << 0) /* whether write with yaffs format. This flag
|
|
* is a 'mode' meaning it cannot be mixed with
|
|
* other flags */
|
|
#define WITH_DROP_FFS (1 << 1) /* drop trailing all-0xff pages */
|
|
|
|
int nand_write_skip_bad(nand_info_t *nand, loff_t offset, size_t *length,
|
|
u_char *buffer, int flags);
|
|
int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts);
|
|
int nand_torture(nand_info_t *nand, loff_t offset);
|
|
|
|
#define NAND_LOCK_STATUS_TIGHT 0x01
|
|
#define NAND_LOCK_STATUS_UNLOCK 0x04
|
|
|
|
int nand_lock(nand_info_t *meminfo, int tight);
|
|
int nand_unlock(nand_info_t *meminfo, loff_t start, size_t length,
|
|
int allexcept);
|
|
int nand_get_lock_status(nand_info_t *meminfo, loff_t offset);
|
|
|
|
int nand_spl_load_image(uint32_t offs, unsigned int size, void *dst);
|
|
void nand_deselect(void);
|
|
|
|
#ifdef CONFIG_SYS_NAND_SELECT_DEVICE
|
|
void board_nand_select_device(struct nand_chip *nand, int chip);
|
|
#endif
|
|
|
|
__attribute__((noreturn)) void nand_boot(void);
|
|
|
|
#endif
|
|
|
|
#ifdef CONFIG_ENV_OFFSET_OOB
|
|
#define ENV_OOB_MARKER 0x30425645 /*"EVB0" in little-endian -- offset is stored
|
|
as block number*/
|
|
#define ENV_OOB_MARKER_OLD 0x30564e45 /*"ENV0" in little-endian -- offset is
|
|
stored as byte number */
|
|
#define ENV_OFFSET_SIZE 8
|
|
int get_nand_env_oob(nand_info_t *nand, unsigned long *result);
|
|
#endif
|