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
  41 typedef struct {
  42         unsigned long base;             /* logical base address for a bank */
  43         unsigned long size;             /* total bank size */
  44         unsigned long page_count;
  45         unsigned long page_size;
  46         unsigned long id;               /* device id */
  47         unsigned char protect[CFG_MAX_DATAFLASH_PAGES]; /* page protection status */
  48 } dataflash_info_t;
  49
  50
  51 typedef unsigned int AT91S_DataFlashStatus;
  52
  53 /*----------------------------------------------------------------------*/
  54 /* DataFlash Structures                                                 */
  55 /*----------------------------------------------------------------------*/
  56
  57 /*---------------------------------------------*/
  58 /* DataFlash Descriptor Structure Definition   */
  59 /*---------------------------------------------*/
  60 typedef struct _AT91S_DataflashDesc {
  61         unsigned char *tx_cmd_pt;
  62         unsigned int tx_cmd_size;
  63         unsigned char *rx_cmd_pt;
  64         unsigned int rx_cmd_size;
  65         unsigned char *tx_data_pt;
  66         unsigned int tx_data_size;
  67         unsigned char *rx_data_pt;
  68         unsigned int rx_data_size;
  69         volatile unsigned char state;
  70         volatile unsigned char DataFlash_state;
  71         unsigned char command[8];
  72 } AT91S_DataflashDesc, *AT91PS_DataflashDesc;
  73
  74 /*---------------------------------------------*/
  75 /* DataFlash device definition structure       */
  76 /*---------------------------------------------*/
  77 typedef struct _AT91S_Dataflash {
  78         int pages_number;                       /* dataflash page number */
  79         int pages_size;                         /* dataflash page size */
  80         int page_offset;                        /* page offset in command */
  81         int byte_mask;                          /* byte mask in command */
  82         int cs;
  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 typedef struct _AT91S_DATAFLASH_INFO {
  95
  96         AT91S_DataflashDesc Desc;
  97         AT91S_DataflashFeatures Device; /* Pointer on a dataflash features array */
  98         unsigned long logical_address;
  99         unsigned int id;                        /* device id */
 100         unsigned char protect[CFG_MAX_DATAFLASH_PAGES]; /* page protection status */
 101 } AT91S_DATAFLASH_INFO, *AT91PS_DATAFLASH_INFO;
 102
 103
 104 /*-------------------------------------------------------------------------------------------------*/
 105
 106 #define AT45DB161       0x2c
 107 #define AT45DB321       0x34
 108 #define AT45DB642       0x3c
 109
 110 #define AT91C_DATAFLASH_TIMEOUT         10000   /* For AT91F_DataFlashWaitReady */
 111
 112 /* DataFlash return value */
 113 #define DATAFLASH_BUSY                  0x00
 114 #define DATAFLASH_OK                    0x01
 115 #define DATAFLASH_ERROR                 0x02
 116 #define DATAFLASH_MEMORY_OVERFLOW       0x03
 117 #define DATAFLASH_BAD_COMMAND           0x04
 118 #define DATAFLASH_BAD_ADDRESS           0x05
 119
 120
 121 /* Driver State */
 122 #define IDLE            0x0
 123 #define BUSY            0x1
 124 #define ERROR           0x2
 125
 126 /* DataFlash Driver State */
 127 #define GET_STATUS      0x0F
 128
 129 /*-------------------------------------------------------------------------------------------------*/
 130 /* Command Definition                                                                              */
 131 /*-------------------------------------------------------------------------------------------------*/
 132
 133 /* READ COMMANDS */
 134 #define DB_CONTINUOUS_ARRAY_READ        0xE8    /* Continuous array read */
 135 #define DB_BURST_ARRAY_READ             0xE8    /* Burst array read */
 136 #define DB_PAGE_READ                    0xD2    /* Main memory page read */
 137 #define DB_BUF1_READ                    0xD4    /* Buffer 1 read */
 138 #define DB_BUF2_READ                    0xD6    /* Buffer 2 read */
 139 #define DB_STATUS                       0xD7    /* Status Register */
 140
 141 /* PROGRAM and ERASE COMMANDS */
 142 #define DB_BUF1_WRITE                   0x84    /* Buffer 1 write */
 143 #define DB_BUF2_WRITE                   0x87    /* Buffer 2 write */
 144 #define DB_BUF1_PAGE_ERASE_PGM          0x83    /* Buffer 1 to main memory page program with built-In erase */
 145 #define DB_BUF1_PAGE_ERASE_FASTPGM      0x93    /* Buffer 1 to main memory page program with built-In erase, Fast program */
 146 #define DB_BUF2_PAGE_ERASE_PGM          0x86    /* Buffer 2 to main memory page program with built-In erase */
 147 #define DB_BUF2_PAGE_ERASE_FASTPGM      0x96    /* Buffer 1 to main memory page program with built-In erase, Fast program */
 148 #define DB_BUF1_PAGE_PGM                0x88    /* Buffer 1 to main memory page program without built-In erase */
 149 #define DB_BUF1_PAGE_FASTPGM            0x98    /* Buffer 1 to main memory page program without built-In erase, Fast program */
 150 #define DB_BUF2_PAGE_PGM                0x89    /* Buffer 2 to main memory page program without built-In erase */
 151 #define DB_BUF2_PAGE_FASTPGM            0x99    /* Buffer 1 to main memory page program without built-In erase, Fast program */
 152 #define DB_PAGE_ERASE                   0x81    /* Page Erase */
 153 #define DB_BLOCK_ERASE                  0x50    /* Block Erase */
 154 #define DB_PAGE_PGM_BUF1                0x82    /* Main memory page through buffer 1 */
 155 #define DB_PAGE_FASTPGM_BUF1            0x92    /* Main memory page through buffer 1, Fast program */
 156 #define DB_PAGE_PGM_BUF2                0x85    /* Main memory page through buffer 2 */
 157 #define DB_PAGE_FastPGM_BUF2            0x95    /* Main memory page through buffer 2, Fast program */
 158
 159 /* ADDITIONAL COMMANDS */
 160 #define DB_PAGE_2_BUF1_TRF              0x53    /* Main memory page to buffer 1 transfert */
 161 #define DB_PAGE_2_BUF2_TRF              0x55    /* Main memory page to buffer 2 transfert */
 162 #define DB_PAGE_2_BUF1_CMP              0x60    /* Main memory page to buffer 1 compare */
 163 #define DB_PAGE_2_BUF2_CMP              0x61    /* Main memory page to buffer 2 compare */
 164 #define DB_AUTO_PAGE_PGM_BUF1           0x58    /* Auto page rewrite throught buffer 1 */
 165 #define DB_AUTO_PAGE_PGM_BUF2           0x59    /* Auto page rewrite throught buffer 2 */
 166
 167 /*-------------------------------------------------------------------------------------------------*/
 168
 169 extern int addr_dataflash (unsigned long addr);
 170 extern int read_dataflash (unsigned long addr, unsigned long size, char *result);
 171 extern int write_dataflash (unsigned long addr, unsigned long dest, unsigned long size);
 172 extern void dataflash_print_info (void);
 173 extern void dataflash_perror (int err);
 174
 175 #endif