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/***************************************************************************
* Copyright (C) 2007 by Dominic Rath *
* Dominic.Rath@gmx.de *
* *
* Partially based on linux/include/linux/mtd/nand.h *
* Copyright (C) 2000 David Woodhouse <dwmw2@mvhi.com> *
* Copyright (C) 2000 Steven J. Hill <sjhill@realitydiluted.com> *
* Copyright (C) 2000 Thomas Gleixner <tglx@linutronix.de> *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* 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 "flash.h"
struct nand_device_s;
#define __NAND_DEVICE_COMMAND(name) \
COMMAND_HELPER(name, struct nand_device_s *nand)
struct nand_flash_controller
{
char *name;
__NAND_DEVICE_COMMAND((*nand_device_command));
int (*register_commands)(struct command_context_s *cmd_ctx);
int (*init)(struct nand_device_s *nand);
int (*reset)(struct nand_device_s *nand);
int (*command)(struct nand_device_s *nand, uint8_t command);
int (*address)(struct nand_device_s *nand, uint8_t address);
int (*write_data)(struct nand_device_s *nand, uint16_t data);
int (*read_data)(struct nand_device_s *nand, void *data);
int (*write_block_data)(struct nand_device_s *nand, uint8_t *data, int size);
int (*read_block_data)(struct nand_device_s *nand, uint8_t *data, int size);
int (*write_page)(struct nand_device_s *nand, uint32_t page, uint8_t *data, uint32_t data_size, uint8_t *oob, uint32_t oob_size);
int (*read_page)(struct nand_device_s *nand, uint32_t page, uint8_t *data, uint32_t data_size, uint8_t *oob, uint32_t oob_size);
int (*controller_ready)(struct nand_device_s *nand, int timeout);
int (*nand_ready)(struct nand_device_s *nand, int timeout);
};
#define NAND_DEVICE_COMMAND_HANDLER(name) static __NAND_DEVICE_COMMAND(name)
typedef struct nand_block_s
{
uint32_t offset;
uint32_t size;
int is_erased;
int is_bad;
} nand_block_t;
struct nand_oobfree {
int offset;
int length;
};
struct nand_ecclayout {
int eccbytes;
int eccpos[64];
int oobavail;
struct nand_oobfree oobfree[2];
};
typedef struct nand_device_s
{
struct nand_flash_controller *controller;
void *controller_priv;
struct nand_manufacturer *manufacturer;
struct nand_info *device;
int bus_width;
int address_cycles;
int page_size;
int erase_size;
int use_raw;
int num_blocks;
nand_block_t *blocks;
struct nand_device_s *next;
} nand_device_t;
/* NAND Flash Manufacturer ID Codes
*/
enum
{
NAND_MFR_TOSHIBA = 0x98,
NAND_MFR_SAMSUNG = 0xec,
NAND_MFR_FUJITSU = 0x04,
NAND_MFR_NATIONAL = 0x8f,
NAND_MFR_RENESAS = 0x07,
NAND_MFR_STMICRO = 0x20,
NAND_MFR_HYNIX = 0xad,
NAND_MFR_MICRON = 0x2c,
};
struct nand_manufacturer
{
int id;
char *name;
};
struct nand_info
{
char *name;
int id;
int page_size;
int chip_size;
int erase_size;
int options;
};
/* Option constants for bizarre disfunctionality and real features
*/
enum {
/* Chip can not auto increment pages */
NAND_NO_AUTOINCR = 0x00000001,
/* Buswitdh is 16 bit */
NAND_BUSWIDTH_16 = 0x00000002,
/* Device supports partial programming without padding */
NAND_NO_PADDING = 0x00000004,
/* Chip has cache program function */
NAND_CACHEPRG = 0x00000008,
/* Chip has copy back function */
NAND_COPYBACK = 0x00000010,
/* AND Chip which has 4 banks and a confusing page / block
* assignment. See Renesas datasheet for further information */
NAND_IS_AND = 0x00000020,
/* Chip has a array of 4 pages which can be read without
* additional ready /busy waits */
NAND_4PAGE_ARRAY = 0x00000040,
/* Chip requires that BBT is periodically rewritten to prevent
* bits from adjacent blocks from 'leaking' in altering data.
* This happens with the Renesas AG-AND chips, possibly others. */
BBT_AUTO_REFRESH = 0x00000080,
/* Chip does not require ready check on read. True
* for all large page devices, as they do not support
* autoincrement.*/
NAND_NO_READRDY = 0x00000100,
/* Options valid for Samsung large page devices */
NAND_SAMSUNG_LP_OPTIONS = (NAND_NO_PADDING | NAND_CACHEPRG | NAND_COPYBACK),
/* Options for new chips with large page size. The pagesize and the
* erasesize is determined from the extended id bytes
*/
LP_OPTIONS = (NAND_SAMSUNG_LP_OPTIONS | NAND_NO_READRDY | NAND_NO_AUTOINCR),
LP_OPTIONS16 = (LP_OPTIONS | NAND_BUSWIDTH_16),
};
enum
{
/* Standard NAND flash commands */
NAND_CMD_READ0 = 0x0,
NAND_CMD_READ1 = 0x1,
NAND_CMD_RNDOUT = 0x5,
NAND_CMD_PAGEPROG = 0x10,
NAND_CMD_READOOB = 0x50,
NAND_CMD_ERASE1 = 0x60,
NAND_CMD_STATUS = 0x70,
NAND_CMD_STATUS_MULTI = 0x71,
NAND_CMD_SEQIN = 0x80,
NAND_CMD_RNDIN = 0x85,
NAND_CMD_READID = 0x90,
NAND_CMD_ERASE2 = 0xd0,
NAND_CMD_RESET = 0xff,
/* Extended commands for large page devices */
NAND_CMD_READSTART = 0x30,
NAND_CMD_RNDOUTSTART = 0xE0,
NAND_CMD_CACHEDPROG = 0x15,
};
/* Status bits */
enum
{
NAND_STATUS_FAIL = 0x01,
NAND_STATUS_FAIL_N1 = 0x02,
NAND_STATUS_TRUE_READY = 0x20,
NAND_STATUS_READY = 0x40,
NAND_STATUS_WP = 0x80,
};
/* OOB (spare) data formats */
enum oob_formats
{
NAND_OOB_NONE = 0x0, /* no OOB data at all */
NAND_OOB_RAW = 0x1, /* raw OOB data (16 bytes for 512b page sizes, 64 bytes for 2048b page sizes) */
NAND_OOB_ONLY = 0x2, /* only OOB data */
NAND_OOB_SW_ECC = 0x10, /* when writing, use SW ECC (as opposed to no ECC) */
NAND_OOB_HW_ECC = 0x20, /* when writing, use HW ECC (as opposed to no ECC) */
NAND_OOB_SW_ECC_KW = 0x40, /* when writing, use Marvell's Kirkwood bootrom format */
NAND_OOB_JFFS2 = 0x100, /* when writing, use JFFS2 OOB layout */
NAND_OOB_YAFFS2 = 0x100,/* when writing, use YAFFS2 OOB layout */
};
nand_device_t *get_nand_device_by_num(int num);
int nand_read_page_raw(struct nand_device_s *nand, uint32_t page,
uint8_t *data, uint32_t data_size, uint8_t *oob, uint32_t oob_size);
int nand_write_page_raw(struct nand_device_s *nand, uint32_t page,
uint8_t *data, uint32_t data_size, uint8_t *oob, uint32_t oob_size);
int nand_read_status(struct nand_device_s *nand, uint8_t *status);
int nand_calculate_ecc(struct nand_device_s *nand,
const uint8_t *dat, uint8_t *ecc_code);
int nand_calculate_ecc_kw(struct nand_device_s *nand,
const uint8_t *dat, uint8_t *ecc_code);
int nand_register_commands(struct command_context_s *cmd_ctx);
int nand_init(struct command_context_s *cmd_ctx);
/// helper for parsing a nand device command argument string
int nand_command_get_device_by_num(struct command_context_s *cmd_ctx,
const char *str, nand_device_t **nand);
#define ERROR_NAND_DEVICE_INVALID (-1100)
#define ERROR_NAND_OPERATION_FAILED (-1101)
#define ERROR_NAND_OPERATION_TIMEOUT (-1102)
#define ERROR_NAND_OPERATION_NOT_SUPPORTED (-1103)
#define ERROR_NAND_DEVICE_NOT_PROBED (-1104)
#define ERROR_NAND_ERROR_CORRECTION_FAILED (-1105)
#define ERROR_NAND_NO_BUFFER (-1106)
#endif /* NAND_H */
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