include/dataflash.h

   1 /*
   2  * (C) Copyright 2003
   3  * Data Flash Atmel Description File
   4  * Author : Hamid Ikdoumi (Atmel)
   5  *
   6  * See file CREDITS for list of people who contributed to this
   7  * project.
   8  *
   9  * This program is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU General Public License as
  11  * published by the Free Software Foundation; either version 2 of
  12  * the License, or (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  22  * MA 02111-1307 USA
  23  */
  24
  25 /* File Name            : dataflash.h                                   */
  26 /* Object               : Data Flash Atmel Description File             */
  27 /* Translator           :                                               */
  28 /*                                                                      */
  29 /* 1.0 03/04/01 HI      : Creation                                      */
  30 /* 1.2 20/10/02 FB      : Adapatation Service and Lib v3                */
  31 /*----------------------------------------------------------------------*/
  32
  33 #ifndef _DataFlash_h
  34 #define _DataFlash_h
  35
  36
  37 #include <asm/arch/hardware.h>
  38 #include "config.h"
  39
  40 /*number of protected area*/
  41 #define NB_DATAFLASH_AREA       4
  42
  43 /*define the area structure*/
  44 typedef struct {
  45         unsigned long start;
  46         unsigned long end;
  47         unsigned char protected;
  48 } dataflash_protect_t;
  49
  50 typedef unsigned int AT91S_DataFlashStatus;
  51
  52 /*----------------------------------------------------------------------*/
  53 /* DataFlash Structures                                                 */
  54 /*----------------------------------------------------------------------*/
  55
  56 /*---------------------------------------------*/
  57 /* DataFlash Descriptor Structure Definition   */
  58 /*---------------------------------------------*/
  59 typedef struct _AT91S_DataflashDesc {
  60         unsigned char *tx_cmd_pt;
  61         unsigned int tx_cmd_size;
  62         unsigned char *rx_cmd_pt;
  63         unsigned int rx_cmd_size;
  64         unsigned char *tx_data_pt;
  65         unsigned int tx_data_size;
  66         unsigned char *rx_data_pt;
  67         unsigned int rx_data_size;
  68         volatile unsigned char state;
  69         volatile unsigned char DataFlash_state;
  70         unsigned char command[8];
  71 } AT91S_DataflashDesc, *AT91PS_DataflashDesc;
  72
  73 /*---------------------------------------------*/
  74 /* DataFlash device definition structure       */
  75 /*---------------------------------------------*/
  76 typedef struct _AT91S_Dataflash {
  77         int pages_number;                       /* dataflash page number */
  78         int pages_size;                         /* dataflash page size */
  79         int page_offset;                        /* page offset in command */
  80         int byte_mask;                          /* byte mask in command */
  81         int cs;
  82         dataflash_protect_t area_list[NB_DATAFLASH_AREA]; /* area protection status */
  83 } AT91S_DataflashFeatures, *AT91PS_DataflashFeatures;
  84
  85 /*---------------------------------------------*/
  86 /* DataFlash Structure Definition              */
  87 /*---------------------------------------------*/
  88 typedef struct _AT91S_DataFlash {
  89         AT91PS_DataflashDesc pDataFlashDesc;    /* dataflash descriptor */
  90         AT91PS_DataflashFeatures pDevice;       /* Pointer on a dataflash features array */
  91 } AT91S_DataFlash, *AT91PS_DataFlash;
  92
  93
  94
  95 typedef struct _AT91S_DATAFLASH_INFO {
  96
  97         AT91S_DataflashDesc Desc;
  98         AT91S_DataflashFeatures Device; /* Pointer on a dataflash features array */
  99         unsigned long logical_address;
 100         unsigned int id;                        /* device id */
 101 } AT91S_DATAFLASH_INFO, *AT91PS_DATAFLASH_INFO;
 102
 103
 104 /*-------------------------------------------------------------------------------------------------*/
 105
 106 #define AT45DB161       0x2c
 107 #define AT45DB321       0x34
 108 #define AT45DB642       0x3c
 109 #define AT45DB128       0x10
 110
 111 #define AT91C_DATAFLASH_TIMEOUT         10000   /* For AT91F_DataFlashWaitReady */
 112
 113 /* DataFlash return value */
 114 #define DATAFLASH_BUSY                  0x00
 115 #define DATAFLASH_OK                    0x01
 116 #define DATAFLASH_ERROR                 0x02
 117 #define DATAFLASH_MEMORY_OVERFLOW       0x03
 118 #define DATAFLASH_BAD_COMMAND           0x04
 119 #define DATAFLASH_BAD_ADDRESS           0x05
 120
 121
 122 /* Driver State */
 123 #define IDLE            0x0
 124 #define BUSY            0x1
 125 #define ERROR           0x2
 126
 127 /* DataFlash Driver State */
 128 #define GET_STATUS      0x0F
 129
 130 /*-------------------------------------------------------------------------------------------------*/
 131 /* Command Definition                                                                              */
 132 /*-------------------------------------------------------------------------------------------------*/
 133
 134 /* READ COMMANDS */
 135 #define DB_CONTINUOUS_ARRAY_READ        0xE8    /* Continuous array read */
 136 #define DB_BURST_ARRAY_READ             0xE8    /* Burst array read */
 137 #define DB_PAGE_READ                    0xD2    /* Main memory page read */
 138 #define DB_BUF1_READ                    0xD4    /* Buffer 1 read */
 139 #define DB_BUF2_READ                    0xD6    /* Buffer 2 read */
 140 #define DB_STATUS                       0xD7    /* Status Register */
 141
 142 /* PROGRAM and ERASE COMMANDS */
 143 #define DB_BUF1_WRITE                   0x84    /* Buffer 1 write */
 144 #define DB_BUF2_WRITE                   0x87    /* Buffer 2 write */
 145 #define DB_BUF1_PAGE_ERASE_PGM          0x83    /* Buffer 1 to main memory page program with built-In erase */
 146 #define DB_BUF1_PAGE_ERASE_FASTPGM      0x93    /* Buffer 1 to main memory page program with built-In erase, Fast program */
 147 #define DB_BUF2_PAGE_ERASE_PGM          0x86    /* Buffer 2 to main memory page program with built-In erase */
 148 #define DB_BUF2_PAGE_ERASE_FASTPGM      0x96    /* Buffer 1 to main memory page program with built-In erase, Fast program */
 149 #define DB_BUF1_PAGE_PGM                0x88    /* Buffer 1 to main memory page program without built-In erase */
 150 #define DB_BUF1_PAGE_FASTPGM            0x98    /* Buffer 1 to main memory page program without built-In erase, Fast program */
 151 #define DB_BUF2_PAGE_PGM                0x89    /* Buffer 2 to main memory page program without built-In erase */
 152 #define DB_BUF2_PAGE_FASTPGM            0x99    /* Buffer 1 to main memory page program without built-In erase, Fast program */
 153 #define DB_PAGE_ERASE                   0x81    /* Page Erase */
 154 #define DB_BLOCK_ERASE                  0x50    /* Block Erase */
 155 #define DB_PAGE_PGM_BUF1                0x82    /* Main memory page through buffer 1 */
 156 #define DB_PAGE_FASTPGM_BUF1            0x92    /* Main memory page through buffer 1, Fast program */
 157 #define DB_PAGE_PGM_BUF2                0x85    /* Main memory page through buffer 2 */
 158 #define DB_PAGE_FastPGM_BUF2            0x95    /* Main memory page through buffer 2, Fast program */
 159
 160 /* ADDITIONAL COMMANDS */
 161 #define DB_PAGE_2_BUF1_TRF              0x53    /* Main memory page to buffer 1 transfert */
 162 #define DB_PAGE_2_BUF2_TRF              0x55    /* Main memory page to buffer 2 transfert */
 163 #define DB_PAGE_2_BUF1_CMP              0x60    /* Main memory page to buffer 1 compare */
 164 #define DB_PAGE_2_BUF2_CMP              0x61    /* Main memory page to buffer 2 compare */
 165 #define DB_AUTO_PAGE_PGM_BUF1           0x58    /* Auto page rewrite throught buffer 1 */
 166 #define DB_AUTO_PAGE_PGM_BUF2           0x59    /* Auto page rewrite throught buffer 2 */
 167
 168 /*-------------------------------------------------------------------------------------------------*/
 169
 170 extern int size_dataflash (AT91PS_DataFlash pdataFlash, unsigned long addr, unsigned long size);
 171 extern int prot_dataflash (AT91PS_DataFlash pdataFlash, unsigned long addr);
 172 extern int dataflash_real_protect (int flag, unsigned long start_addr, unsigned long end_addr);
 173 extern int addr_dataflash (unsigned long addr);
 174 extern int read_dataflash (unsigned long addr, unsigned long size, char *result);
 175 extern int write_dataflash (unsigned long addr, unsigned long dest, unsigned long size);
 176 extern void dataflash_print_info (void);
 177 extern void dataflash_perror (int err);
 178
 179 #endif