sflash.h

em86xx 完整启动程序,支持网络下载与串通下载

/*****************************************
 Copyright (c) 2003-2004
 Sigma Designs, Inc. All Rights Reserved
 Proprietary and Confidential
 *****************************************/

/* This file is part of the EM86XX boot loader */

/*
 * sflash.h
 *
 * Serial Flash support
 *
 * by Ho Lee 02/04/2003
 */

#ifndef __BOOTLOADER_SFLASH_H
#define __BOOTLOADER_SFLASH_H

//
// Serial Flash interfaces between different models
//

enum { 
    SFLASH_VENDOR_NONE, 
    SFLASH_VENDOR_ST_M25, 
    SFLASH_VENDOR_ST_M95, 
    SFLASH_VENDOR_SST_25, 
    SFLASH_VENDOR_END 
};

typedef struct {
    int model;
    char *name; 
    int size;
    int nsector;
    int sectorsize;
} sflash_db_t;

typedef struct sflash_op_struct {
    int vendor;
    char *name;
    sflash_db_t *sflash_list;
    void (*setparam)(sflash_db_t *pdb, int verbose);
    int (*detect)(struct sflash_op_struct **pop, sflash_db_t **pdb, int verbose);
    int (*readstatus)(void);
    void (*writeenable)(void);
    void (*writedisable)(void);
    void (*chiperase)(sflash_db_t *pdb);
    void (*sectorerase)(sflash_db_t *pdb, unsigned int addr);
    void (*pageprogram)(sflash_db_t *pdb, unsigned int addr, unsigned char *data, int len);
    void (*read)(sflash_db_t *pdb, unsigned int addr, unsigned char *to, int len);
    void (*fast_read)(sflash_db_t *pdb, unsigned int addr, unsigned char *to, int len);
} sflash_op_t;

void sflash_chipselect(void);
void sflash_chipdeselect(void);
void sflash_sendcommand(unsigned int cmd);

unsigned char sflash_readb(void);
void sflash_writeb(unsigned int data);
unsigned short sflash_readw(void);
void sflash_writew(unsigned int data);
unsigned int sflash_readl(void);
void sflash_writel(unsigned int data);

void sflash_setparam(unsigned int data_param, unsigned int data_speed, int verbose);

// 
// function prototypes
//

void sflash_chiperase(void);
void sflash_sectorerase(unsigned int addr);
void sflash_pageprogram(unsigned int addr, unsigned char *data, int len);

int sflash_force(const char *name);
void sflash_show_supportlist(void);
int sflash_detect(int verbose);
int sflash_exist(void);
void sflash_showinfo(void);
unsigned int sflash_getsize(void);
int sflash_calcblock(unsigned int addr, unsigned int *pstart, unsigned int *pend);
int sflash_calcblockrange(unsigned int addr, int len, unsigned int *pstart, unsigned int *pend);
int sflash_writable(unsigned int addr, int len);
void sflash_readdata(unsigned int addr, unsigned char *data, int len);
void sflash_erasedata(unsigned int addr, int len);
void sflash_writedata(unsigned int addr, unsigned char *data, int len);

void sflash_test(int argc, char *argv[]);

#endif