flash.h

realview下的一个arm9的bootloader烧录器.支持norflash读写

/********************************************************************************
 * Copyright Statement:
 * --------------------
 * This software is protected by Copyright and the information contained herein
 * is confidential.  The software may not be copied and the information
 * contained herein may not be used or disclosed except with the written
 * permission of INFOMAX COMMUNICATION CO.,LTD.
 *
 * MODULE NAME:  
 * DESCRIPTION:  
 * AUTHOR:       
 * BEGIN DATE:         
 * LAST MODIFICATION: 
 *******************************************************************************/
 
#ifndef FLASH_H
#define FLASH_H
/******************************************************************************* 
 Header files 
 *******************************************************************************/
#include "common_var_types.h"
#include "magic_reg_defs.h"

/******************************************************************************* 
 Constant/Marco
 *******************************************************************************/
/* ST xxxx */
#define FLASH_BASE 0x10000000
#define FLASH_SIZE (8*1024*1024) /* 16 MB */
#define FLASH_CMD_BLOCK_ERASE       0x20
#define FLASH_CMD_WRITE             0x40
#define FLASH_CMD_CONFIGURATION     0x60
#define FLASH_CMD_LOCK              0x01
#define FLASH_CMD_UNLOCK            0xD0
#define FLASH_CMD_LOCK_DOWN         0x2F
#define FLASH_CMD_READ_ELECTRONIC_SIGNATURE 0x90
#define FLASH_CMD_READ              0xFF
#define FLASH_BLOCK_PROTECTION_LOCKED   0x1
#define FLASH_BLOCK_PROTECTION_UNLOCKED 0x0
#define FLASH_BLOCK_PROTECTION_LOCK_DOWN_LOCKED   0x3
#define FLASH_BLOCK_PROTECTION_LOCK_DOWN_UNLOCKED 0x2
#define SR0 (0x1)
#define SR1 (0x1 << 1)
#define SR2 (0x1 << 2)
#define SR3 (0x1 << 3)
#define SR4 (0x1 << 4)
#define SR5 (0x1 << 5)
#define SR6 (0x1 << 6)
#define SR7 (0x1 << 7)

#define FLASH_NORMAL_BLOCK_SIZE    (64*2*1024) /* 128KBytes = 64KWords(16-bit) */
#define FLASH_PARAMETER_BLOCK_SIZE (16*2*1024) /*  32KBytes = 16KWords(16-bit) */
#define FLASH_NORMAL_BLOCK_NUM     (127) /* 128KBytes = 64KWords(16-bit) */
#define FLASH_PARAMETER_BLOCK_NUM  (4)   /*  32KBytes = 16KWords(16-bit) */
#define FLASH_TOTAL_BLOCK_NUM      (FLASH_NORMAL_BLOCK_NUM + FLASH_PARAMETER_BLOCK_NUM)
 
/******************************************************************************* 
 Structure/Union/Enum/Typedef
 *******************************************************************************/ 
enum
{
    FLASH_OPERATION_LOCK,
    FLASH_OPERATION_UNLOCK,
    //FLASH_OPERATION_LOCK_DOWN,
    FLASH_OPERATION_MAX
};

/******************************************************************************* 
 Function Prototypes
 *******************************************************************************/ 

/**
 @Desc
    Description for function_name
 @Param parameter 1
    Put parameter 1 description here
 @Param parameter 2
    Put parameter 2 description here
 @Return    Return value 1 and it description 
 @Return    Return value 1 and it description 
*/
void flash_init(void);
void flash_read(unsigned int flash_offset, unsigned int read_size, unsigned short *read_buf_ptr);
unsigned int flash_write(unsigned int flash_offset, unsigned int write_size, unsigned short *write_buf_ptr,unsigned int lock_block);
void flash_sector_earse(unsigned int flash_offset, unsigned int read_size, unsigned short *write_buf_ptr);
unsigned int flash_block_unlock(unsigned int flash_offset,unsigned int lock_block);
unsigned int flash_block_lock(unsigned int flash_offset,unsigned int lock_block);
unsigned int flash_find_block_address(unsigned int flash_offset,unsigned int lock_block);

void ghdi_flash_block_erase(UINT32 BlockNumber);

int nor_flash_sector_erase (unsigned int addr);
void nor_flash_write (unsigned int addr, unsigned short *data, unsigned int length);
unsigned int flash_block_cntl(unsigned int sys_addr_within_block, unsigned int operation);
unsigned int flash_get_block_addr_base(unsigned int sys_addr_within_block);
unsigned int flash_get_block_addr_base_from_id(unsigned int block_id);
unsigned int flash_get_block_size_from_id(unsigned int block_id);

#endif /* #ifndef FLASH_H */