betty/flash.h

   1 /*
   2  * flash.h - header file for the low level flash handling
   3  *
   4  * author: hackbard@hackdaworld.org
   5  *
   6  */
   7
   8 #ifndef FLASH_H
   9 #define FLASH_H
  10
  11 #include "lpc2xxx.h"
  12 #include "types.h"
  13
  14 /*
  15  * defines
  16  */
  17
  18 #define BANK0                           '0'
  19 #define BANK2                           '2'
  20 #define FLASH_BANK0                     0x80000000
  21 #define FLASH_BANK2                     0x82000000
  22 #define FLASH_SIZE                      0x00100000
  23
  24 /* cmd addresses (shifted to left!) */
  25 #define FLASH_B0F555    (*((volatile unsigned short *)(FLASH_BANK0|0xaaa)))
  26 #define FLASH_B0F2AA    (*((volatile unsigned short *)(FLASH_BANK0|0x554)))
  27 #define FLASH_B0F       (*((volatile unsigned short *)(FLASH_BANK0)))
  28 #define FLASH_B2F555    (*((volatile unsigned short *)(FLASH_BANK2|0xaaa)))
  29 #define FLASH_B2F2AA    (*((volatile unsigned short *)(FLASH_BANK2|0x554)))
  30 #define FLASH_B2F       (*((volatile unsigned short *)(FLASH_BANK2)))
  31
  32 /*
  33  * function prototypes
  34  */
  35
  36 void flash_init(void);
  37 void flash_reset(u8 bank);
  38 void flash_sector_erase(u8 flash,u8 sector);
  39 int flash_sec_erase(u32 addr);
  40 void flash_chip_erase(u8 bank);
  41 void flash_unlock_bypass(u8 bank);
  42 void flash_unlock_bypass_reset(u8 bank);
  43 int flash_write_word(u32 addr,u16 data);
  44 int flash_write_buf(u32 addr,u16 *buf,int len);
  45 void flash_read_buf(u32 addr,u16 *buf,int len);
  46
  47 #endif