umon bootloader source code, support mips cpu.
源代码在线查看： flashdev.h
/* flash.h:
Header file for use with 29F800B for 16 bit 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
/* Manufacturer and device ids... */
#define AMD29F800T 0x000122d6
#define AMD29F800B 0x00012258
#define WIDTH 2
#define WIDTH_IN_BYTES 2
#define WIDTH_IN_BITS 16
#define WIDTH_MASK 1
#define ftype volatile unsigned short
#define FLASHERASE Flasherase16
#define ENDFLASHERASE EndFlasherase16
#define FLASHWRITE Flashwrite16
#define ENDFLASHWRITE EndFlashwrite16
#define FLASHEWRITE Flashewrite16
#define ENDFLASHEWRITE EndFlashewrite16
#define FLASHTYPE Flashtype16
#define ENDFLASHTYPE EndFlashtype16
#define NotAligned(ptr) ((long)ptr & 1)
#define Write_aa_to_555() (*(ftype *)(fdev->base+(0x555 #define Write_55_to_2aa() (*(ftype *)(fdev->base+(0x2aa #define Write_80_to_555() (*(ftype *)(fdev->base+(0x555 #define Write_a0_to_555() (*(ftype *)(fdev->base+(0x555 #define Write_f0_to_555() (*(ftype *)(fdev->base+(0x555 #define Write_90_to_555() (*(ftype *)(fdev->base+(0x555 #define Write_30_to_(add) (*(ftype *)add = 0x3030)
#define Read_0000() (*(ftype *)(fdev->base+(0x0000 #define Read_0001() (*(ftype *)(fdev->base+(0x0001 #define Read_5555() (*(ftype *)(fdev->base+(0x5555 #define Is_ff(add) (*(ftype *)add == 0xffff)
#define Is_not_ff(add) (*(ftype *)add != 0xffff)
#define D5_Timeout(add) ((*(ftype *)add & 0x2020) == 0x2020)
#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)
