cfm_flash.h

来自「motorola 针对coldfire 5275 评估板的Dbug bootlo」· C头文件 代码 · 共 125 行

/*
 * File:        cfm_flash.h
 * Purpose:     Flash driver for programming the ColdFire Flash Module 
 *
 * Notes:       Based on the SSD CFM driver
 *
 */

#ifndef _CFM_FLASH_H_
#define _CFM_FLASH_H_

/********************************************************************/
/*
 * CFM configuration structure
 */
typedef struct {
    uint32  RegBase;        /* Base address of CFM control registers */
    uint32  CoreBusBase;    /* Base address of CFM core bus space */
    uint32  IPSBase;        /* Base address of CFM IPS space */
    uint32  BlockSize;      /* Size of CFM logical blocks */
    uint32  BlockNum;       /* Number of CFM logical blocks */
    uint32  ISREnable;      /* Interrupt mode or polling mode */
    uint32  BDMEnable;      /* Debug mode or embedded application mode */
} CFM_CONFIG;
 
/*
 * Function prototypes
 */
void
cfm_flash_init(void);

int
cfm_flash_erase(ADDRESS, int, void(*)(char));

int 
cfm_flash_program(ADDRESS, ADDRESS, int, int, void(*)(void), void(*)(char));

ADDRESS 
cfm_flash_page_start(ADDRESS);

ADDRESS 
cfm_flash_page_end(ADDRESS);

/********************************************************************/
/*
 * Implementations specific settings
 */

#if   (defined(CPU_MCF5282))
#define PGSZ                (0x800)     /* Page Size */
#define PGOFST(n)           (PGSZ * n)  /* Page Offset */
#define CFM_BLOCK_SIZE      (0x40000)   /* Logical Block Size */
#define CFM_BLOCK_NUM       (2)         /* Number of Logical Blocks */
#define CFM_FLASH_SIZE      (CFM_BLOCK_SIZE * CFM_BLOCK_NUM)
#define CFM_FLASH_PAGES     (CFM_FLASH_SIZE / PGSZ)
#define CFM_WORD_SIZE       (0x4)
#define CFM_WORD_MASK       (0x3)
#define CFM_WORD            uint32

#elif (defined(CPU_MCF5213) || defined(CPU_MCF5212))
#define PGSZ                (0x800)     /* Page Size */
#define PGOFST(n)           (PGSZ * n)  /* Page Offset */
#define CFM_BLOCK_SIZE      (0x40000)   /* Logical Block Size */
#define CFM_BLOCK_NUM       (1)         /* Number of Logical Blocks */
#define CFM_FLASH_SIZE      (CFM_BLOCK_SIZE * CFM_BLOCK_NUM)
#define CFM_FLASH_PAGES     (CFM_FLASH_SIZE / PGSZ)
#define CFM_WORD_SIZE       (0x4)
#define CFM_WORD_MASK       (0x3)
#define CFM_WORD            uint32

#elif (defined(CPU_MCF5211))
#define PGSZ                (0x800)     /* Page Size */
#define PGOFST(n)           (PGSZ * n)  /* Page Offset */
#define CFM_BLOCK_SIZE      (0x20000)   /* Logical Block Size */
#define CFM_BLOCK_NUM       (1)         /* Number of Logical Blocks */
#define CFM_FLASH_SIZE      (CFM_BLOCK_SIZE * CFM_BLOCK_NUM)
#define CFM_FLASH_PAGES     (CFM_FLASH_SIZE / PGSZ)
#define CFM_WORD_SIZE       (0x4)
#define CFM_WORD_MASK       (0x3)
#define CFM_WORD            uint32

#else
#error "Define a valid CPU for the CFM driver"
#endif

/********************************************************************/
/* 
 * Macros for Calculating Clock Divider Value
 * The BSP must define SYS_CLK_KHZ
 */
#define MIN_SYS_CLK                 900     /* 900 KHz */
#define MAX_SYS_CLK                 204800  /* 204.8 MHz */

#ifndef SYS_CLK_KHZ
    #error "SYS_CLK_KHZ is not defined!"
#endif

#if (SYS_CLK_KHZ > MAX_SYS_CLK) || (SYS_CLK_KHZ < MIN_SYS_CLK)
    #error "System clock frequency is out of range!"
#endif

#define CFM_INPUT_CLOCK_RATE        (SYS_CLK_KHZ / 2)

#if  CFM_INPUT_CLOCK_RATE > 12800
    #define CFM_CLOCK               (CFM_INPUT_CLOCK_RATE / 8)
    #define CFM_CLOCK_PRDIV8        (0x40)
#else
    #define CFM_CLOCK               (CFM_INPUT_CLOCK_RATE)
    #define CFM_CLOCK_PRDIV8        (0)
#endif

#define CLOCK_DIV                   (CFM_CLOCK / 200)
    
#if (CFM_CLOCK % 200)
    #define CFM_CLOCK_DIV           (CLOCK_DIV)
#else
    #define CFM_CLOCK_DIV           (CLOCK_DIV - 1)
#endif

#define CFMCLKD                     (CFM_CLOCK_PRDIV8 | CFM_CLOCK_DIV)

/********************************************************************/

#endif /* _CFM_FLASH_H_ */