flash.h

完整的Bell实验室的嵌入式文件系统TFS

/* flash.h:
   Header file for use with 29LV160 for 32 bit mode (2 devices in x16 mode).
*/
/* FLASHFUNCSIZE:
    Size of the array used by the flash operations to copy functions into
    RAM space for execution out of non-flash memory.
*/
#define FLASHFUNCSIZE       320

#define FLASH_TIMEOUT       1000000

#define FLASH_PROTECT_WINDOW_CLOSED 0
#define ALL_SECTORS -1

/* Manufacturer and device ids... */
#define SWAPPED_AMD29LV160T 0x0100c422
#define SWAPPED_AMD29LV160B 0x01004922
#define AMD29LV160T         0x000122C4
#define AMD29LV160B         0x00012249

#define WIDTH   4
#define ftype               volatile unsigned long
#define FLASHERASE          Flasherase32
#define ENDFLASHERASE       EndFlasherase32
#define FLASHWRITE          Flashwrite32
#define ENDFLASHWRITE       EndFlashwrite32
#define FLASHEWRITE         Flashewrite32
#define ENDFLASHEWRITE      EndFlashewrite32
#define FLASHTYPE           Flashtype32
#define ENDFLASHTYPE        EndFlashtype32
#define Write_aa_to_555()  (*((ftype *)(fdev->base)+0x555) = 0xaaaaaaaa)
#define Write_55_to_2aa()  (*((ftype *)(fdev->base)+0x2aa) = 0x55555555)
#define Write_80_to_555()  (*((ftype *)(fdev->base)+0x555) = 0x80808080)
#define Write_a0_to_555()  (*((ftype *)(fdev->base)+0x555) = 0xa0a0a0a0)
#define Write_f0_to_555()  (*((ftype *)(fdev->base)+0x555) = 0xf0f0f0f0)
#define Write_90_to_555()  (*((ftype *)(fdev->base)+0x555) = 0x90909090)
#define Write_30_to_(add)   (*(ftype *)add = 0x30303030)
#define Read_0000()         (*(ftype *)(fdev->base))
#define Read_0001()         (*((ftype *)(fdev->base)+0x0001))
#define Read_555()          (*((ftype *)(fdev->base)+0x555))
#define Is_ff(add)          (*(ftype *)add == 0xffffffff)
#define Is_not_ff(add)      (*(ftype *)add != 0xffffffff)
#define D5_Timeout(add)     ((*(ftype *)add & 0xdfdfdfdf) == 0x20202020)

#define NotAligned(ptr)     ((long)ptr & 3)
#define Fwrite(to,frm)      (*(ftype *)to = *(ftype *)frm)
#define Is_Equal(p1,p2)     (*(ftype *)p1 == *(ftype *)p2)
#define Is_Not_Equal(p1,p2) (*(ftype *)p1 != *(ftype *)p2)

extern int FlashProtectionWindow;

struct  flashdesc {
    unsigned long   id;             /* manufacturer & device id */
    char        *desc;              /* ascii string */
};

struct  sectorinfo {
    long    size;                   /* size of sector */
    int protected;                  /* if set, sector is protected by window */
    unsigned char   *begin;         /* base address of sector */
    unsigned char   *end;           /* end address of sector */
};

struct  flashinfo {
    unsigned long   id;             /* manufacturer & device id */
    unsigned char   *base;          /* base address of device */
    int     sectorcnt;              /* number of sectors */
    int     width;                  /* 1, 2, or 4 */
    struct sectorinfo sectors[35];  /* information per sector */
};

extern struct flashinfo FlashBank[];