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 #ifdef  CONFIG_NEW_PARTITION
  42 # define NB_DATAFLASH_AREA      6
  43 #else
  44 # define NB_DATAFLASH_AREA      4
  45 #endif
  46
  47 #ifdef CFG_NO_FLASH
  48
  49 /*-----------------------------------------------------------------------
  50  * return codes from flash_write():
  51  */
  52 # define ERR_OK                         0
  53 # define ERR_TIMOUT                     1
  54 # define ERR_NOT_ERASED                 2
  55 # define ERR_PROTECTED                  4
  56 # define ERR_INVAL                      8
  57 # define ERR_ALIGN                      16
  58 # define ERR_UNKNOWN_FLASH_VENDOR       32
  59 # define ERR_UNKNOWN_FLASH_TYPE         64
  60 # define ERR_PROG_ERROR                 128
  61
  62 /*-----------------------------------------------------------------------
  63  * Protection Flags for flash_protect():
  64  */
  65 # define FLAG_PROTECT_SET               0x01
  66 # define FLAG_PROTECT_CLEAR             0x02
  67 # define FLAG_PROTECT_INVALID           0x03
  68
  69 /*-----------------------------------------------------------------------
  70  * Set Environment according to label:
  71  */
  72 # define        FLAG_SETENV             0x80
  73 #endif /* CFG_NO_FLASH */
  74
  75 /*define the area structure*/
  76 typedef struct {
  77         unsigned long start;
  78         unsigned long end;
  79         unsigned char protected;
  80         unsigned char setenv;
  81         unsigned char label[20];
  82 } dataflash_protect_t;
  83
  84 typedef unsigned int AT91S_DataFlashStatus;
  85
  86 /*----------------------------------------------------------------------*/
  87 /* DataFlash Structures                                                 */
  88 /*----------------------------------------------------------------------*/
  89
  90 /*---------------------------------------------*/
  91 /* DataFlash Descriptor Structure Definition   */
  92 /*---------------------------------------------*/
  93 typedef struct _AT91S_DataflashDesc {
  94         unsigned char *tx_cmd_pt;
  95         unsigned int tx_cmd_size;
  96         unsigned char *rx_cmd_pt;
  97         unsigned int rx_cmd_size;
  98         unsigned char *tx_data_pt;
  99         unsigned int tx_data_size;
 100         unsigned char *rx_data_pt;
 101         unsigned int rx_data_size;
 102         volatile unsigned char state;
 103         volatile unsigned char DataFlash_state;
 104         unsigned char command[8];
 105 } AT91S_DataflashDesc, *AT91PS_DataflashDesc;
 106
 107 /*---------------------------------------------*/
 108 /* DataFlash device definition structure       */
 109 /*---------------------------------------------*/
 110 typedef struct _AT91S_Dataflash {
 111         int pages_number;                       /* dataflash page number */
 112         int pages_size;                         /* dataflash page size */
 113         int page_offset;                        /* page offset in command */
 114         int byte_mask;                          /* byte mask in command */
 115         int cs;
 116         dataflash_protect_t area_list[NB_DATAFLASH_AREA]; /* area protection status */
 117 } AT91S_DataflashFeatures, *AT91PS_DataflashFeatures;
 118
 119 /*---------------------------------------------*/
 120 /* DataFlash Structure Definition              */
 121 /*---------------------------------------------*/
 122 typedef struct _AT91S_DataFlash {
 123         AT91PS_DataflashDesc pDataFlashDesc;    /* dataflash descriptor */
 124         AT91PS_DataflashFeatures pDevice;       /* Pointer on a dataflash features array */
 125 } AT91S_DataFlash, *AT91PS_DataFlash;
 126
 127
 128 typedef struct _AT91S_DATAFLASH_INFO {
 129
 130         AT91S_DataflashDesc Desc;
 131         AT91S_DataflashFeatures Device; /* Pointer on a dataflash features array */
 132         unsigned long logical_address;
 133         unsigned long end_address;
 134         unsigned int id;                        /* device id */
 135 } AT91S_DATAFLASH_INFO, *AT91PS_DATAFLASH_INFO;
 136
 137
 138 /*-------------------------------------------------------------------------------------------------*/
 139
 140 #define AT45DB161       0x2c
 141 #define AT45DB321       0x34
 142 #define AT45DB642       0x3c
 143 #define AT45DB128       0x10
 144 #define PAGES_PER_BLOCK 8
 145
 146 #define AT91C_DATAFLASH_TIMEOUT         10000   /* For AT91F_DataFlashWaitReady */
 147
 148 /* DataFlash return value */
 149 #define DATAFLASH_BUSY                  0x00
 150 #define DATAFLASH_OK                    0x01
 151 #define DATAFLASH_ERROR                 0x02
 152 #define DATAFLASH_MEMORY_OVERFLOW       0x03
 153 #define DATAFLASH_BAD_COMMAND           0x04
 154 #define DATAFLASH_BAD_ADDRESS           0x05
 155
 156
 157 /* Driver State */
 158 #define IDLE            0x0
 159 #define BUSY            0x1
 160 #define ERROR           0x2
 161
 162 /* DataFlash Driver State */
 163 #define GET_STATUS      0x0F
 164
 165 /*-------------------------------------------------------------------------------------------------*/
 166 /* Command Definition                                                                              */
 167 /*-------------------------------------------------------------------------------------------------*/
 168
 169 /* READ COMMANDS */
 170 #define DB_CONTINUOUS_ARRAY_READ        0xE8    /* Continuous array read */
 171 #define DB_BURST_ARRAY_READ             0xE8    /* Burst array read */
 172 #define DB_PAGE_READ                    0xD2    /* Main memory page read */
 173 #define DB_BUF1_READ                    0xD4    /* Buffer 1 read */
 174 #define DB_BUF2_READ                    0xD6    /* Buffer 2 read */
 175 #define DB_STATUS                       0xD7    /* Status Register */
 176
 177 /* PROGRAM and ERASE COMMANDS */
 178 #define DB_BUF1_WRITE                   0x84    /* Buffer 1 write */
 179 #define DB_BUF2_WRITE                   0x87    /* Buffer 2 write */
 180 #define DB_BUF1_PAGE_ERASE_PGM          0x83    /* Buffer 1 to main memory page program with built-In erase */
 181 #define DB_BUF1_PAGE_ERASE_FASTPGM      0x93    /* Buffer 1 to main memory page program with built-In erase, Fast program */
 182 #define DB_BUF2_PAGE_ERASE_PGM          0x86    /* Buffer 2 to main memory page program with built-In erase */
 183 #define DB_BUF2_PAGE_ERASE_FASTPGM      0x96    /* Buffer 1 to main memory page program with built-In erase, Fast program */
 184 #define DB_BUF1_PAGE_PGM                0x88    /* Buffer 1 to main memory page program without built-In erase */
 185 #define DB_BUF1_PAGE_FASTPGM            0x98    /* Buffer 1 to main memory page program without built-In erase, Fast program */
 186 #define DB_BUF2_PAGE_PGM                0x89    /* Buffer 2 to main memory page program without built-In erase */
 187 #define DB_BUF2_PAGE_FASTPGM            0x99    /* Buffer 1 to main memory page program without built-In erase, Fast program */
 188 #define DB_PAGE_ERASE                   0x81    /* Page Erase */
 189 #define DB_BLOCK_ERASE                  0x50    /* Block Erase */
 190 #define DB_PAGE_PGM_BUF1                0x82    /* Main memory page through buffer 1 */
 191 #define DB_PAGE_FASTPGM_BUF1            0x92    /* Main memory page through buffer 1, Fast program */
 192 #define DB_PAGE_PGM_BUF2                0x85    /* Main memory page through buffer 2 */
 193 #define DB_PAGE_FastPGM_BUF2            0x95    /* Main memory page through buffer 2, Fast program */
 194
 195 /* ADDITIONAL COMMANDS */
 196 #define DB_PAGE_2_BUF1_TRF              0x53    /* Main memory page to buffer 1 transfert */
 197 #define DB_PAGE_2_BUF2_TRF              0x55    /* Main memory page to buffer 2 transfert */
 198 #define DB_PAGE_2_BUF1_CMP              0x60    /* Main memory page to buffer 1 compare */
 199 #define DB_PAGE_2_BUF2_CMP              0x61    /* Main memory page to buffer 2 compare */
 200 #define DB_AUTO_PAGE_PGM_BUF1           0x58    /* Auto page rewrite throught buffer 1 */
 201 #define DB_AUTO_PAGE_PGM_BUF2           0x59    /* Auto page rewrite throught buffer 2 */
 202
 203 /*-------------------------------------------------------------------------------------------------*/
 204
 205 extern int size_dataflash (AT91PS_DataFlash pdataFlash, unsigned long addr, unsigned long size);
 206 extern int prot_dataflash (AT91PS_DataFlash pdataFlash, unsigned long addr);
 207 extern int addr2ram(ulong addr);
 208 extern int dataflash_real_protect (int flag, unsigned long start_addr, unsigned long end_addr);
 209 extern int addr_dataflash (unsigned long addr);
 210 extern int read_dataflash (unsigned long addr, unsigned long size, char *result);
 211 extern int write_dataflash (unsigned long addr, unsigned long dest, unsigned long size);
 212 extern void dataflash_print_info (void);
 213 extern void dataflash_perror (int err);
 214
 215 #ifdef  CONFIG_NEW_DF_PARTITION
 216 extern int AT91F_DataflashSetEnv (void); #endif
 217 #endif
 218
 219 #endif