mx_nand2k.h

FreeScale imx21开发板Nand flash烧写程序

/*****************************************************************************
** mx_nand2k.h
**
** Copyright 2007 Freescale Semiconductor, Inc. All Rights Reserved.
**
** This file contains copyrighted material. Use of this file is
** restricted by the provisions of a Freescale Software License
** Agreement, which has either been electronically accepted by
** you or has been expressly executed between the parties.
**
** Description: Explanation for the usage of this file.
**
** Revision History:
** -----------------
*****************************************************************************/
/*!
 * @file mx_nand2k.h
 * @defgroup nand_2k_flash
 * @brief the header file for nand flash with 2k page
 *
 * @ingroup nand_2k_flash
 * @{
 */
#ifndef __MX_NAND2K_H_
#define __MX_NAND2K_H_
/*****************************************************************************
* <Includes>
*****************************************************************************/
#include "type.h"
#include "flash_report.h"

/*****************************************************************************
* <Macros>
*****************************************************************************/
/*
#define NAND_MAN_ID                 (gNAND->man_id)
#define NAND_DEV_ID                 (gNAND->dev_id)
#define NAND_NUM_OF_ROW_ADDR_CYCLES (gNAND->num_of_row_address_cycles)
#define NAND_NUM_OF_BLOCKS          (gNAND->num_of_blocks)
#define NAND_NUM_OF_PAGES           (gNAND->num_of_pages)
#define NAND_IO_WIDTH               (gNAND->io_width)
*/
#define NAND_MAN_ID                 (0xEC)
#define NAND_DEV_ID                 (0xDC)
#define NAND_NUM_OF_ROW_ADDR_CYCLES (2)
#define NAND_NUM_OF_BLOCKS          (1024)
#define NAND_NUM_OF_PAGES           (64)
#define NAND_IO_WIDTH               8
#define NAND_MAIN_BYTESIZE          (2048)
#define NAND_SPARE_BYTESIZE         (64)
/*
#define NAND_BADBLOCK_MARKER_OFFSET (gNAND->badblock_marker_offset)
*/
#define NAND_BADBLOCK_MARKER_OFFSET (0)

#define NAND_ERROR_NO     0
#define NAND_ERROR_ECC    1
#define NAND_ERROR_PROG   2
#define NAND_ERROR_ERASE  3
#define NAND_ERROR_VERIFY 4
#define NAND_ERROR_INIT   5 

/*****************************************************************************
* <Typedefs>
*****************************************************************************/
typedef struct {
   u8 man_id;
   u8 dev_id;
   u8 io_width;
   u8 badblock_marker_offset;
   u8 num_of_row_address_cycles; 
   /* number of blocks*/
   u32 num_of_blocks;
 	/* number of pages per block*/
   u32 num_of_pages;     
   u8 model[128];
}nand_t;


/*****************************************************************************
* global var
*****************************************************************************/
/* global var to store nand information*/
extern nand_t *gNAND;

/*!
 * nand flash function declarations
 */
/*initialize nand flash */ 
extern u8 nand_init(void);
/*check whether nand block is good */ 
extern u8 nand_block_is_good(u32 BlockNum);
/*mark bad block */
extern u8 nand_mark_bad_block(u32 BlockNum);
/*erase block */
extern u8 nand_erase_block(u32 BlockNum);
/*read flash content */
extern u8 nand_read (u32 FlashAddress, u32 TargetAddress, u32 ByteSize);
/*write data to flash*/
extern u8 nand_write(u32 FlashAddress, u32 SourceAddress, u32 ByteSize,u8 file_format);
/* Compare memory content*/
extern u8 nand_compare(u32 FlashAddress, u32 TargetAddress, u32 ByteSize);
/* Erase content in specific range*/
extern u8 nand_erase_conditional(u32 StartAddress, u32 EndAddress);
/* show nand information */
extern void nand_info(void);
/* erase all blocks*/
extern void nand_unconditional_erase_all(void);

/**@}*/
#endif