include/dataflash.h

   1 /*
   2  * (C) Copyright 2003
   3  * Data Flash Atmel Description File
   4  * Author : Hamid Ikdoumi (Atmel)
   5  *
   6  * SPDX-License-Identifier:     GPL-2.0+
   7  */
   8
   9 /* File Name            : dataflash.h                                   */
  10 /* Object               : Data Flash Atmel Description File             */
  11 /* Translator           :                                               */
  12 /*                                                                      */
  13 /* 1.0 03/04/01 HI      : Creation                                      */
  14 /* 1.2 20/10/02 FB      : Adapatation Service and Lib v3                */
  15 /*----------------------------------------------------------------------*/
  16
  17 #ifndef _DataFlash_h
  18 #define _DataFlash_h
  19
  20
  21 #include "config.h"
  22
  23 /*number of protected area*/
  24 #define NB_DATAFLASH_AREA               5
  25
  26 #ifndef CONFIG_MTD_NOR_FLASH
  27
  28 /*-----------------------------------------------------------------------
  29  * return codes from flash_write():
  30  */
  31 # define ERR_OK                         0
  32 # define ERR_TIMOUT                     1
  33 # define ERR_NOT_ERASED                 2
  34 # define ERR_PROTECTED                  4
  35 # define ERR_INVAL                      8
  36 # define ERR_ALIGN                      16
  37 # define ERR_UNKNOWN_FLASH_VENDOR       32
  38 # define ERR_UNKNOWN_FLASH_TYPE         64
  39 # define ERR_PROG_ERROR                 128
  40
  41 /*-----------------------------------------------------------------------
  42  * Protection Flags for flash_protect():
  43  */
  44 # define FLAG_PROTECT_SET               0x01
  45 # define FLAG_PROTECT_CLEAR             0x02
  46 # define FLAG_PROTECT_INVALID           0x03
  47
  48 /*-----------------------------------------------------------------------
  49  * Set Environment according to label:
  50  */
  51 # define        FLAG_SETENV             0x80
  52 #endif /* CONFIG_MTD_NOR_FLASH */
  53
  54 /*define the area structure*/
  55 typedef struct {
  56         unsigned long start;
  57         unsigned long end;
  58         unsigned char protected;
  59         unsigned char setenv;
  60         unsigned char label[20];
  61 } dataflash_protect_t;
  62
  63 typedef unsigned int AT91S_DataFlashStatus;
  64
  65 /*----------------------------------------------------------------------*/
  66 /* DataFlash Structures                                                 */
  67 /*----------------------------------------------------------------------*/
  68
  69 /*---------------------------------------------*/
  70 /* DataFlash Descriptor Structure Definition   */
  71 /*---------------------------------------------*/
  72 typedef struct _AT91S_DataflashDesc {
  73         unsigned char *tx_cmd_pt;
  74         unsigned int tx_cmd_size;
  75         unsigned char *rx_cmd_pt;
  76         unsigned int rx_cmd_size;
  77         unsigned char *tx_data_pt;
  78         unsigned int tx_data_size;
  79         unsigned char *rx_data_pt;
  80         unsigned int rx_data_size;
  81         volatile unsigned char state;
  82         volatile unsigned char DataFlash_state;
  83         unsigned char command[8];
  84 } AT91S_DataflashDesc, *AT91PS_DataflashDesc;
  85
  86 /*---------------------------------------------*/
  87 /* DataFlash device definition structure       */
  88 /*---------------------------------------------*/
  89 typedef struct _AT91S_Dataflash {
  90         int pages_number;                       /* dataflash page number */
  91         int pages_size;                         /* dataflash page size */
  92         int page_offset;                        /* page offset in command */
  93         int byte_mask;                          /* byte mask in command */
  94         int cs;
  95         dataflash_protect_t area_list[NB_DATAFLASH_AREA]; /* area protection status */
  96 } AT91S_DataflashFeatures, *AT91PS_DataflashFeatures;
  97
  98 /*---------------------------------------------*/
  99 /* DataFlash Structure Definition              */
 100 /*---------------------------------------------*/
 101 typedef struct _AT91S_DataFlash {
 102         AT91PS_DataflashDesc pDataFlashDesc;    /* dataflash descriptor */
 103         AT91PS_DataflashFeatures pDevice;       /* Pointer on a dataflash features array */
 104 } AT91S_DataFlash, *AT91PS_DataFlash;
 105
 106
 107 typedef struct _AT91S_DATAFLASH_INFO {
 108
 109         AT91S_DataflashDesc Desc;
 110         AT91S_DataflashFeatures Device; /* Pointer on a dataflash features array */
 111         unsigned long logical_address;
 112         unsigned long end_address;
 113         unsigned int id;                        /* device id */
 114 } AT91S_DATAFLASH_INFO, *AT91PS_DATAFLASH_INFO;
 115
 116 struct dataflash_addr {
 117         unsigned long addr;
 118         int cs;
 119 };
 120 /*-------------------------------------------------------------------------------------------------*/
 121 #define AT45DB161       0x2c
 122 #define AT45DB021       0x14
 123 #define AT45DB081       0x24
 124 #define AT45DB321       0x34
 125 #define AT45DB642       0x3c
 126 #define AT45DB128       0x10
 127 #define PAGES_PER_BLOCK 8
 128
 129 #define AT91C_DATAFLASH_TIMEOUT         10000   /* For AT91F_DataFlashWaitReady */
 130
 131 /* DataFlash return value */
 132 #define DATAFLASH_BUSY                  0x00
 133 #define DATAFLASH_OK                    0x01
 134 #define DATAFLASH_ERROR                 0x02
 135 #define DATAFLASH_MEMORY_OVERFLOW       0x03
 136 #define DATAFLASH_BAD_COMMAND           0x04
 137 #define DATAFLASH_BAD_ADDRESS           0x05
 138
 139
 140 /* Driver State */
 141 #define IDLE            0x0
 142 #define BUSY            0x1
 143 #define ERROR           0x2
 144
 145 /* DataFlash Driver State */
 146 #define GET_STATUS      0x0F
 147
 148 /*-------------------------------------------------------------------------------------------------*/
 149 /* Command Definition                                                                              */
 150 /*-------------------------------------------------------------------------------------------------*/
 151
 152 /* READ COMMANDS */
 153 #define DB_CONTINUOUS_ARRAY_READ        0xE8    /* Continuous array read */
 154 #define DB_BURST_ARRAY_READ             0xE8    /* Burst array read */
 155 #define DB_PAGE_READ                    0xD2    /* Main memory page read */
 156 #define DB_BUF1_READ                    0xD4    /* Buffer 1 read */
 157 #define DB_BUF2_READ                    0xD6    /* Buffer 2 read */
 158 #define DB_STATUS                       0xD7    /* Status Register */
 159
 160 /* PROGRAM and ERASE COMMANDS */
 161 #define DB_BUF1_WRITE                   0x84    /* Buffer 1 write */
 162 #define DB_BUF2_WRITE                   0x87    /* Buffer 2 write */
 163 #define DB_BUF1_PAGE_ERASE_PGM          0x83    /* Buffer 1 to main memory page program with built-In erase */
 164 #define DB_BUF1_PAGE_ERASE_FASTPGM      0x93    /* Buffer 1 to main memory page program with built-In erase, Fast program */
 165 #define DB_BUF2_PAGE_ERASE_PGM          0x86    /* Buffer 2 to main memory page program with built-In erase */
 166 #define DB_BUF2_PAGE_ERASE_FASTPGM      0x96    /* Buffer 1 to main memory page program with built-In erase, Fast program */
 167 #define DB_BUF1_PAGE_PGM                0x88    /* Buffer 1 to main memory page program without built-In erase */
 168 #define DB_BUF1_PAGE_FASTPGM            0x98    /* Buffer 1 to main memory page program without built-In erase, Fast program */
 169 #define DB_BUF2_PAGE_PGM                0x89    /* Buffer 2 to main memory page program without built-In erase */
 170 #define DB_BUF2_PAGE_FASTPGM            0x99    /* Buffer 1 to main memory page program without built-In erase, Fast program */
 171 #define DB_PAGE_ERASE                   0x81    /* Page Erase */
 172 #define DB_BLOCK_ERASE                  0x50    /* Block Erase */
 173 #define DB_PAGE_PGM_BUF1                0x82    /* Main memory page through buffer 1 */
 174 #define DB_PAGE_FASTPGM_BUF1            0x92    /* Main memory page through buffer 1, Fast program */
 175 #define DB_PAGE_PGM_BUF2                0x85    /* Main memory page through buffer 2 */
 176 #define DB_PAGE_FastPGM_BUF2            0x95    /* Main memory page through buffer 2, Fast program */
 177
 178 /* ADDITIONAL COMMANDS */
 179 #define DB_PAGE_2_BUF1_TRF              0x53    /* Main memory page to buffer 1 transfert */
 180 #define DB_PAGE_2_BUF2_TRF              0x55    /* Main memory page to buffer 2 transfert */
 181 #define DB_PAGE_2_BUF1_CMP              0x60    /* Main memory page to buffer 1 compare */
 182 #define DB_PAGE_2_BUF2_CMP              0x61    /* Main memory page to buffer 2 compare */
 183 #define DB_AUTO_PAGE_PGM_BUF1           0x58    /* Auto page rewrite throught buffer 1 */
 184 #define DB_AUTO_PAGE_PGM_BUF2           0x59    /* Auto page rewrite throught buffer 2 */
 185
 186 /*-------------------------------------------------------------------------------------------------*/
 187
 188 extern int size_dataflash (AT91PS_DataFlash pdataFlash, unsigned long addr, unsigned long size);
 189 extern int prot_dataflash (AT91PS_DataFlash pdataFlash, unsigned long addr);
 190 extern int addr2ram(ulong addr);
 191 extern int dataflash_real_protect (int flag, unsigned long start_addr, unsigned long end_addr);
 192 extern int addr_dataflash (unsigned long addr);
 193 extern int read_dataflash (unsigned long addr, unsigned long size, char *result);
 194 extern int write_dataflash(unsigned long addr_dest, unsigned long addr_src,
 195                         unsigned long size);
 196 extern int AT91F_DataflashInit(void);
 197
 198 extern void dataflash_print_info (void);
 199 extern void dataflash_perror (int err);
 200 extern void AT91F_DataflashSetEnv (void);
 201
 202 extern struct dataflash_addr cs[CONFIG_SYS_MAX_DATAFLASH_BANKS];
 203 extern dataflash_protect_t area_list[NB_DATAFLASH_AREA];
 204 extern AT91S_DATAFLASH_INFO dataflash_info[];
 205 #endif