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annotate packages/hal/arm/pid/current/src/prog_flash.c @ 3292:7f8e529b4d82 default tip

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Fix FREESCALE_EDMA_NBYTES_MLOFFYES_MLOFF() so it works with negative offsets.
author vae
date Wed, 29 Apr 2015 23:31:48 +0000
parents 74dbf4c3f2e1
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 //==========================================================================
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2 //
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3 // prog_flash.c
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4 //
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5 // ARM PID7 eval board FLASH program tool
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6 //
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7 //==========================================================================
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8 // ####ECOSGPLCOPYRIGHTBEGIN####
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9 // -------------------------------------------
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10 // This file is part of eCos, the Embedded Configurable Operating System.
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11 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
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12 //
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13 // eCos is free software; you can redistribute it and/or modify it under
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14 // the terms of the GNU General Public License as published by the Free
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15 // Software Foundation; either version 2 or (at your option) any later
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16 // version.
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17 //
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18 // eCos is distributed in the hope that it will be useful, but WITHOUT
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19 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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20 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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21 // for more details.
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22 //
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23 // You should have received a copy of the GNU General Public License
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24 // along with eCos; if not, write to the Free Software Foundation, Inc.,
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25 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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26 //
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27 // As a special exception, if other files instantiate templates or use
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28 // macros or inline functions from this file, or you compile this file
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29 // and link it with other works to produce a work based on this file,
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30 // this file does not by itself cause the resulting work to be covered by
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31 // the GNU General Public License. However the source code for this file
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32 // must still be made available in accordance with section (3) of the GNU
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33 // General Public License v2.
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34 //
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35 // This exception does not invalidate any other reasons why a work based
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36 // on this file might be covered by the GNU General Public License.
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37 // -------------------------------------------
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38 // ####ECOSGPLCOPYRIGHTEND####
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39 //==========================================================================
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40 //#####DESCRIPTIONBEGIN####
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41 //
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42 // Author(s): gthomas
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43 // Contributors: gthomas
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44 // Date: 1998-11-18
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45 // Description: Tool used to program onboard FLASH image
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46 //####DESCRIPTIONEND####
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47
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48 //
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49 // This program will program the FLASH on the PID board
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50 // It is similar to 'flash' (which also downloads S records) but it always
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51 // programs from a fixed buffer. This is sufficient to load/update the GDB
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52 // stubs on the board.
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53 //
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54
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55 #include <pkgconf/libc.h> // Configuration header
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56
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57 #include <cyg/kernel/kapi.h>
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58 #include <stdlib.h>
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59 #include <ctype.h>
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60 #include <cyg/infra/testcase.h>
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61 #include <sys/cstartup.h>
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62
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63 #ifndef FALSE
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64 #define FALSE 0
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65 #define TRUE 1
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66 #endif
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67
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68 extern void diag_printf(const char *, ...);
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69 int identify_FLASH(void);
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70 void write_sector(int, char *);
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71
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72 char *flash_buffer = (char *)0x60000;
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73 char *flash_buffer_end = (char *)0x80000;
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74
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75 #ifdef BE_IMAGE
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76 #define BUF(x) buf[x^3]
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77 #else
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78 #define BUF(x) buf[x]
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79 #endif
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80
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81 // FUNCTIONS
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82
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83 externC void
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84 cyg_package_start( void )
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85 {
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86 #ifdef CYGPKG_LIBC
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87 cyg_iso_c_start();
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88 #else
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89 (void)main(0, NULL);
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90 #endif
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91 } // cyg_package_start()
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92
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93 int
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94 main( int argc, char *argv[] )
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95 {
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96 int i;
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97
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98 diag_printf("FLASH here!\n");
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99 while (identify_FLASH() == 0) {
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100 diag_printf("... Please change FLASH jumper\n");
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101 cyg_thread_delay(5*100);
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102 }
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103 diag_printf("About to program FLASH using data at %x..%x\n", flash_buffer, flash_buffer_end);
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104 diag_printf("*** Press RESET now to abort!\n");
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105 cyg_thread_delay(5*100);
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106 diag_printf("\n");
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107 diag_printf("...Programming FLASH\n");
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108
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109 i = 0;
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110 while (flash_buffer < flash_buffer_end) {
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111 write_sector(i++, flash_buffer);
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112 flash_buffer += 256;
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113 }
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114 diag_printf("All done!\n");
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115 while (1) ;
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116 }
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117
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118 // Adapted from ARM sample code
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119 #define SEQ_ADD1 0x5555
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120 #define SEQ_ADD2 0xAAAA
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121 #define START_CMD1 0xAA
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122 #define START_CMD2 0x55
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123 #define ID_CMD 0x90
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124 #define PROG_CMD 0xA0
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125 #define STOP_CMD 0xF0
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126
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127 #define MAN_ATMEL 0x1F
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128 #define ATMEL_AT29C040_ID 0X5B
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129 #define ATMEL_AT29C040A_ID 0XA4
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130 #define ATMEL_AT29C1024_ID 0X25
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131 #define ATMEL_SECTOR_SIZE 256
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132 #define ATMEL_MAX_SECTORS 2048
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133
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134 int manuf_code, device_code, sector_size, max_no_of_sectors, word_mode;
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135 volatile char *FLASH = (volatile char *)0x04000000;
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136
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137 int
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138 identify_FLASH(void )
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139 {
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140 // Enter Software Product Identification Mode
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141 FLASH[SEQ_ADD1] = START_CMD1;
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142 FLASH[SEQ_ADD2] = START_CMD2;
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143 FLASH[SEQ_ADD1] = ID_CMD;
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144
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145 // Wait at least 10ms
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146 cyg_thread_delay(2);
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147
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148 // Read Manufacturer and device code from the device
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149 manuf_code = FLASH[0];
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150 device_code = FLASH[1];
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151
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152 diag_printf("manuf: %x, device: %x\n", manuf_code, device_code);
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153
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154 // Exit Software Product Identification Mode
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155 FLASH[SEQ_ADD1] = START_CMD1;
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156 FLASH[SEQ_ADD2] = START_CMD2;
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157 FLASH[SEQ_ADD1] = STOP_CMD;
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158
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159 // Wait at least 10ms
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160 cyg_thread_delay(5);
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161
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162 if (manuf_code != MAN_ATMEL) {
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163 diag_printf ( "Error: Wrong Manufaturer: %02x\n",manuf_code );
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164 return (0);
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165 }
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166
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167 switch (device_code) {
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168 case ATMEL_AT29C040A_ID:
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169 diag_printf ("AT29C040A recognised\n");
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170 sector_size = ATMEL_SECTOR_SIZE;
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171 max_no_of_sectors = ATMEL_MAX_SECTORS;
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172 word_mode = FALSE;
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173 break;
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174 case ATMEL_AT29C1024_ID:
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175 diag_printf ("AT29C1024 recognised\n");
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176 sector_size = ATMEL_SECTOR_SIZE;
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177 max_no_of_sectors = ATMEL_MAX_SECTORS;
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178 word_mode = TRUE;
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179 break;
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180 default :
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181 diag_printf ( "Error: Unsupported device: %02x\n", device_code);
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182 return (0);
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183 }
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184 return (1);
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185 }
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186
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187 void
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188 write_sector(int num, char *buf)
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189 {
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190 int i, cnt;
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191 volatile char *wrt = (volatile char *)&FLASH[num*sector_size];
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192
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193 // diag_printf("Writing to %08x\n", wrt);
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194 // Enter Program Mode
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195 FLASH[SEQ_ADD1] = START_CMD1;
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196 FLASH[SEQ_ADD2] = START_CMD2;
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197 FLASH[SEQ_ADD1] = PROG_CMD;
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198
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199 // Note: write bytes as longs regardless of bus width
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200 for (i = 0; i < sector_size; i++) {
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201 wrt[i] = BUF(i);
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202 }
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203
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204 // Wait for sector to program
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205 cnt = 0;
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206 i = sector_size - 1;
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207 while (wrt[i] != BUF(i)) {
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208 if (cnt++ > 0x01000000) break;
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209 }
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210 // diag_printf("Out - i: %d, wrt[i] = %08X.%08X, BUF(i) = %08X, count = %x\n", i, &wrt[i], wrt[i], BUF(i), cnt);
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211
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212 // Verify
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213 for (i = 0; i < sector_size; i++) {
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214 for (cnt = 0; cnt < 10; cnt++) {
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215 if (wrt[i] == BUF(i)) break;
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216 cyg_thread_delay(1);
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217 }
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218 if (cnt == 10) {
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219 diag_printf("Can't program at 0x%08X: %02X not %02X\n", wrt, *wrt, BUF(0));
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220 }
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221 }
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222 }