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annotate packages/hal/arm/cl7211/current/tests/dram_test.c @ 50:a0774359f013 ecos-sw-1999-11-02

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Merge from eCos master repository on 1999-11-02-17:02:15-GMT
author jlarmour
date Tue, 02 Nov 1999 20:57:07 +0000
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50
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1 //==========================================================================
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2 //
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3 // dram_test.c
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4 //
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5 // Cirrus EB72xx eval board DRAM test code
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6 //
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7 //==========================================================================
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8 //####COPYRIGHTBEGIN####
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9 //
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10 // -------------------------------------------
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11 // The contents of this file are subject to the Cygnus eCos Public License
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12 // Version 1.0 (the "License"); you may not use this file except in
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13 // compliance with the License. You may obtain a copy of the License at
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14 // http://sourceware.cygnus.com/ecos
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15 //
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16 // Software distributed under the License is distributed on an "AS IS"
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17 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
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18 // License for the specific language governing rights and limitations under
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19 // the License.
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20 //
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21 // The Original Code is eCos - Embedded Cygnus Operating System, released
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22 // September 30, 1998.
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23 //
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24 // The Initial Developer of the Original Code is Cygnus. Portions created
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25 // by Cygnus are Copyright (C) 1998,1999 Cygnus Solutions. All Rights Reserved.
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26 // -------------------------------------------
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27 //
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28 //####COPYRIGHTEND####
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29 //==========================================================================
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30 //#####DESCRIPTIONBEGIN####
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31 //
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32 // Author(s): gthomas
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33 // Contributors: gthomas
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34 // Date: 1999-10-22
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35 // Description: Tool used to test DRAM on eval boards
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36 //####DESCRIPTIONEND####
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37
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38 #include <pkgconf/kernel.h> // Configuration header
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39 #include <cyg/kernel/kapi.h>
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40 #include <cyg/infra/diag.h>
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41
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42 #include <cyg/hal/hal_cl7211.h> // Board definitions
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43
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44 #ifndef FALSE
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45 #define FALSE 0
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46 #define TRUE 1
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47 #endif
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48
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49 #define STACK_SIZE 4096
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50 static char stack[STACK_SIZE];
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51 static cyg_thread thread_data;
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52 static cyg_handle_t thread_handle;
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53
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54 extern char _end;
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55 int total_errors;
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56 int run_errors;
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57 int error_count;
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58 #define MAX_ERRORS 5
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59 #define NUM_RUNS 25
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60 #define REFRESH_TIME 5
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61
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62 int decay_time[] = { 50, 100, 200, 500, 1000 };
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63 #define NUM_DECAY sizeof(decay_time)/sizeof(decay_time[0])
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64
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65 // FUNCTIONS
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66
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67 static void
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68 cyg_test_exit(void)
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69 {
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70 while (TRUE) ;
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71 }
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72
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73 static void
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74 new_test(void)
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75 {
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76 error_count = 0;
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77 }
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78
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79 static void
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80 report_error(void *addr, cyg_uint32 actual, cyg_uint32 expected)
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81 {
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82 total_errors++;
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83 run_errors++;
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84 if (++error_count > MAX_ERRORS) return;
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85 diag_printf(" 0x%08x: expected - 0x%08x, actual - 0x%08x\n",
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86 addr, expected, actual);
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87 }
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88
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89 // Fill longwords with their own address and verify
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90
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91 static void
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92 addr_test(cyg_uint32 start, cyg_uint32 end)
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93 {
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94 cyg_uint32 *mp;
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95
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96 new_test();
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97 diag_printf("-- Address test\n");
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98 for (mp = (cyg_uint32 *)start; mp < (cyg_uint32 *)end; mp++) {
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99 *mp = (cyg_uint32)mp;
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100 }
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101 for (mp = (cyg_uint32 *)start; mp < (cyg_uint32 *)end; mp++) {
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102 if (*mp != (cyg_uint32)mp) {
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103 report_error(mp, *mp, (cyg_uint32)mp);
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104 }
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105 }
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106 }
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107
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108 // Fill longwords with zeros
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109
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110 static void
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111 zeros_test(cyg_uint32 start, cyg_uint32 end)
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112 {
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113 cyg_uint32 *mp;
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114
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115 new_test();
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116 diag_printf("-- Zeros test\n");
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117 for (mp = (cyg_uint32 *)start; mp < (cyg_uint32 *)end; mp++) {
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118 *mp = (cyg_uint32)0;
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119 }
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120 for (mp = (cyg_uint32 *)start; mp < (cyg_uint32 *)end; mp++) {
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121 if (*mp != (cyg_uint32)0) {
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122 report_error(mp, *mp, (cyg_uint32)0);
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123 }
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124 }
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125 }
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126
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127 // Fill longwords with all ones
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128
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129 static void
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130 ones_test(cyg_uint32 start, cyg_uint32 end)
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131 {
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132 cyg_uint32 *mp;
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133
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134 new_test();
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135 diag_printf("-- Ones test\n");
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136 for (mp = (cyg_uint32 *)start; mp < (cyg_uint32 *)end; mp++) {
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137 *mp = (cyg_uint32)0xFFFFFFFF;
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138 }
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139 for (mp = (cyg_uint32 *)start; mp < (cyg_uint32 *)end; mp++) {
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140 if (*mp != (cyg_uint32)0xFFFFFFFF) {
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141 report_error(mp, *mp, (cyg_uint32)0xFFFFFFFF);
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142 }
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143 }
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144 }
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145
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146 // Fill longwords with a "walking" bit
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147
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148 static void
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149 walking_bit_test(cyg_uint32 start, cyg_uint32 end)
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150 {
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151 cyg_uint32 *mp;
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152 cyg_uint32 bit;
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153
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154 new_test();
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155 diag_printf("-- Walking test\n");
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156 bit = 1;
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157 for (mp = (cyg_uint32 *)start; mp < (cyg_uint32 *)end; mp++) {
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158 *mp = (cyg_uint32)bit;
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159 bit <<= 1;
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160 if (bit == 0) bit = 1;
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161 }
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162 bit = 1;
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163 for (mp = (cyg_uint32 *)start; mp < (cyg_uint32 *)end; mp++) {
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164 if (*mp != (cyg_uint32)bit) {
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165 report_error(mp, *mp, (cyg_uint32)bit);
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166 }
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167 bit <<= 1;
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168 if (bit == 0) bit = 1;
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169 }
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170 }
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171
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172 // Fill longwords with an alternating pattern
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173
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174 static void
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175 pattern_test(cyg_uint32 start, cyg_uint32 end)
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176 {
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177 cyg_uint32 *mp;
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178 cyg_uint32 pat;
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179
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180 new_test();
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181 diag_printf("-- Pattern test\n");
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182 pat = 0x55555555;
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183 for (mp = (cyg_uint32 *)start; mp < (cyg_uint32 *)end; mp++) {
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184 *mp = (cyg_uint32)pat;
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185 }
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186 for (mp = (cyg_uint32 *)start; mp < (cyg_uint32 *)end; mp++) {
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187 if (*mp != (cyg_uint32)pat) {
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188 report_error(mp, *mp, (cyg_uint32)pat);
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189 }
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190 }
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191 pat = 0xAAAAAAAA;
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192 for (mp = (cyg_uint32 *)start; mp < (cyg_uint32 *)end; mp++) {
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193 *mp = (cyg_uint32)pat;
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194 }
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195 for (mp = (cyg_uint32 *)start; mp < (cyg_uint32 *)end; mp++) {
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196 if (*mp != (cyg_uint32)pat) {
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197 report_error(mp, *mp, (cyg_uint32)pat);
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198 }
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199 }
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200 }
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201
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202 // Verify if refresh works
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203
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204 static void
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205 refresh_test(cyg_uint32 start, cyg_uint32 end)
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206 {
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207 cyg_uint32 *mp;
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208 cyg_uint32 pat;
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209
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210 new_test();
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211 diag_printf("-- Refresh test\n");
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212 pat = 0x55555555;
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213 for (mp = (cyg_uint32 *)start; mp < (cyg_uint32 *)end; mp++) {
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214 *mp = (cyg_uint32)pat;
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215 }
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216 cyg_thread_delay(REFRESH_TIME*100);
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217 for (mp = (cyg_uint32 *)start; mp < (cyg_uint32 *)end; mp++) {
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218 if (*mp != (cyg_uint32)pat) {
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219 report_error(mp, *mp, (cyg_uint32)pat);
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220 }
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221 }
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222 pat = 0xAAAAAAAA;
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223 for (mp = (cyg_uint32 *)start; mp < (cyg_uint32 *)end; mp++) {
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224 *mp = (cyg_uint32)pat;
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225 }
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226 cyg_thread_delay(REFRESH_TIME*100);
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227 for (mp = (cyg_uint32 *)start; mp < (cyg_uint32 *)end; mp++) {
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228 if (*mp != (cyg_uint32)pat) {
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229 report_error(mp, *mp, (cyg_uint32)pat);
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230 }
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231 }
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232 }
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233
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234 // See how long we can "sleep" before refresh fails
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235
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236 static void
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237 decay_test(cyg_uint32 start, cyg_uint32 end)
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238 {
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239 cyg_uint32 *mp;
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240 cyg_uint32 pat;
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241 int i;
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242
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243 diag_printf("-- Decay test\n");
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244 for (i = 0; i < NUM_DECAY; i++) {
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245 diag_printf(" ... %d.%02d sec delay\n", decay_time[i]/100, decay_time[i]%100);
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246 new_test();
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247 pat = 0x55555555;
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248 for (mp = (cyg_uint32 *)start; mp < (cyg_uint32 *)end; mp++) {
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249 *mp = (cyg_uint32)pat;
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250 }
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251 cyg_thread_delay(decay_time[i]);
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252 for (mp = (cyg_uint32 *)start; mp < (cyg_uint32 *)end; mp++) {
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253 if (*mp != (cyg_uint32)pat) {
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254 report_error(mp, *mp, (cyg_uint32)pat);
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255 }
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256 }
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257 pat = 0xAAAAAAAA;
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258 for (mp = (cyg_uint32 *)start; mp < (cyg_uint32 *)end; mp++) {
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259 *mp = (cyg_uint32)pat;
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260 }
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261 cyg_thread_delay(decay_time[i]);
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262 for (mp = (cyg_uint32 *)start; mp < (cyg_uint32 *)end; mp++) {
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263 if (*mp != (cyg_uint32)pat) {
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264 report_error(mp, *mp, (cyg_uint32)pat);
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265 }
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266 }
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267 diag_printf(" ... %d errors\n", error_count);
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268 }
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269 }
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270
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271
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272 static void
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273 dram_exercise(cyg_addrword_t p)
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274 {
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275 cyg_uint32 start_DRAM, end_DRAM;
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276 int i;
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277
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278 end_DRAM = 0x01000000;
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279 end_DRAM = 0x00F80000;
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280 start_DRAM = ((cyg_uint32)&_end + 0x0000FFFF) & 0xFFFF0000;
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281 diag_printf("DRAM test - start: 0x%08x, end: 0x%08x\n", start_DRAM, end_DRAM);
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282
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283 for (i = 0; i < NUM_RUNS; i++) {
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284 diag_printf("\n*** Start run #%d of %d\n", i+1, NUM_RUNS);
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285 run_errors = 0;
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286 addr_test(start_DRAM, end_DRAM);
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287 ones_test(start_DRAM, end_DRAM);
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288 zeros_test(start_DRAM, end_DRAM);
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289 walking_bit_test(start_DRAM, end_DRAM);
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290 pattern_test(start_DRAM, end_DRAM);
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291 refresh_test(start_DRAM, end_DRAM);
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292 decay_test(start_DRAM, end_DRAM);
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293 diag_printf("\n*** End run, %d errors, %d total errors\n", run_errors, total_errors);
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294 }
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295
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296 diag_printf("All done!\n");
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297 cyg_test_exit();
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298 }
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299
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300 externC void
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301 cyg_start( void )
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302 {
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303 // Create a main thread, so we can run the scheduler and have time 'pass'
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304 cyg_thread_create(10, // Priority - just a number
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305 dram_exercise, // entry
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306 0, // entry parameter
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307 "DRAM test", // Name
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308 &stack[0], // Stack
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309 STACK_SIZE, // Size
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310 &thread_handle, // Handle
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311 &thread_data // Thread data structure
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312 );
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313 cyg_thread_resume(thread_handle); // Start it
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314 cyg_scheduler_start();
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315 } // cyg_package_start()
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316