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annotate packages/redboot/current/src/main.c @ 138:289bf90c6a9b

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Merge from eCos master repository on 2000-11-24-06:43:05-GMT
author jlarmour
date Fri, 24 Nov 2000 07:49:02 +0000
parents 0ae0bc38e387
children 450e4e1f1e80
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1 //==========================================================================
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2 //
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3 // main.c
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4 //
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5 // RedBoot main routine
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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 Red Hat eCos Public License
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12 // Version 1.1 (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://www.redhat.com/
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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 Configurable Operating System,
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22 // released September 30, 1998.
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23 //
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24 // The Initial Developer of the Original Code is Red Hat.
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25 // Portions created by Red Hat are
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26 // Copyright (C) 1998, 1999, 2000 Red Hat, Inc.
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27 // All Rights Reserved.
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28 // -------------------------------------------
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29 //
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30 //####COPYRIGHTEND####
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31 //==========================================================================
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32 //#####DESCRIPTIONBEGIN####
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33 //
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34 // Author(s): gthomas
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35 // Contributors: gthomas
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36 // Date: 2000-07-14
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37 // Purpose:
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38 // Description:
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39 //
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40 // This code is part of RedBoot (tm).
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41 //
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42 //####DESCRIPTIONEND####
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43 //
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44 //==========================================================================
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45
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46 #define DEFINE_VARS
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47 #include <redboot.h>
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48 #include <cyg/hal/hal_arch.h>
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49 #include <cyg/hal/hal_intr.h>
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50 #include <cyg/hal/hal_cache.h>
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51 #include CYGHWR_MEMORY_LAYOUT_H
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52
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53 #include <cyg/hal/hal_tables.h>
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54
132
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55 // Builtin Self Test (BIST)
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56 externC void bist(void);
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57
115
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58 // GDB interfaces
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59 extern void breakpoint(void);
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60
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61 // CLI command processing (defined in this file)
138
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62 RedBoot_cmd("version",
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63 "Display RedBoot version information",
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64 "",
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65 do_version
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66 );
115
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67 RedBoot_cmd("help",
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68 "Help about help?",
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69 "<topic>",
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70 do_help
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71 );
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72 RedBoot_cmd("go",
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73 "Execute code at a location",
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74 "[-w <timeout>] [entry]",
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75 do_go
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76 );
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77 RedBoot_cmd("dump",
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78 "Display (hex dump) a range of memory",
130
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79 "-b <location> [-l <length>]",
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80 do_dump
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81 );
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82 RedBoot_cmd("cache",
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83 "Manage machine caches",
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84 "[ON | OFF]",
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85 do_caches
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86 );
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87
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88 // Define table boundaries
130
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89 CYG_HAL_TABLE_BEGIN( __RedBoot_INIT_TAB__, RedBoot_inits );
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90 CYG_HAL_TABLE_END( __RedBoot_INIT_TAB_END__, RedBoot_inits );
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91 extern struct init_tab_entry __RedBoot_INIT_TAB__[], __RedBoot_INIT_TAB_END__;
115
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92 CYG_HAL_TABLE_BEGIN( __RedBoot_CMD_TAB__, RedBoot_commands );
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93 CYG_HAL_TABLE_END( __RedBoot_CMD_TAB_END__, RedBoot_commands );
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94 extern struct cmd __RedBoot_CMD_TAB__[], __RedBoot_CMD_TAB_END__;
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95
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96 void
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97 do_version(int argc, char *argv[])
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98 {
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99 printf("\nRedBoot(tm) debug environment - built %s, %s\n", __TIME__, __DATE__);
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100 #ifdef HAL_PLATFORM_CPU
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101 printf("Platform: %s (%s) %s\n", HAL_PLATFORM_BOARD, HAL_PLATFORM_CPU, HAL_PLATFORM_EXTRA);
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102 #endif
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103 printf("Copyright (C) 2000, Red Hat, Inc.\n\n");
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104 printf("RAM: %p-%p\n", ram_start, ram_end);
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105 }
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106
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107 //
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108 // This is the main entry point for RedBoot
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109 //
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110 void
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111 cyg_start(void)
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112 {
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113 int res;
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114 bool prompt = true;
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115 char line[256];
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116 struct cmd *cmd;
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117 int cur = CYGACC_CALL_IF_SET_CONSOLE_COMM(CYGNUM_CALL_IF_SET_COMM_ID_QUERY_CURRENT);
126
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118 struct init_tab_entry *init_entry;
115
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119
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120 CYGACC_CALL_IF_SET_CONSOLE_COMM(CYGNUM_HAL_VIRTUAL_VECTOR_CONSOLE_CHANNEL);
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121 #ifdef CYGPKG_REDBOOT_ANY_CONSOLE
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122 console_selected = false;
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123 #endif
128
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124 console_echo = true;
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125 CYGACC_CALL_IF_DELAY_US(2*100000);
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126
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127 ram_start = (unsigned char *)CYGMEM_REGION_ram;
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128 ram_end = (unsigned char *)(CYGMEM_REGION_ram+CYGMEM_REGION_ram_SIZE);
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129
132
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130 bist();
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131
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132 do_version(0,0);
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133
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134 config_ok = false;
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135
126
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136 for (init_entry = __RedBoot_INIT_TAB__; init_entry != &__RedBoot_INIT_TAB_END__; init_entry++) {
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137 (*init_entry->fun)();
115
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138 }
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139
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140 #ifdef CYGSEM_REDBOOT_FLASH_CONFIG
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141 // Give the guy a chance to abort any boot script
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142 if (script) {
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143 unsigned char *hold_script = script;
130
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144 int script_timeout_ms = script_timeout * CYGNUM_REDBOOT_FLASH_SCRIPT_TIMEOUT_RESOLUTION;
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145 printf("== Executing boot script in %d.%03d seconds - enter ^C to abort\n",
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146 script_timeout_ms/1000, script_timeout_ms%1000);
115
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147 script = (unsigned char *)0;
130
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148 res = gets(line, sizeof(line), script_timeout_ms);
115
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149 if (res == -2) {
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150 script = (unsigned char *)0; // Disable script
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151 } else {
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152 script = hold_script; // Re-enable script
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153 }
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154 }
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155 #endif
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156
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157 while (true) {
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158 if (prompt) {
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159 printf("RedBoot> ");
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160 prompt = false;
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161 }
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162 res = gets(line, sizeof(line), 250);
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163 if (res < 0) {
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164 // No input arrived
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165 #ifdef CYGPKG_REDBOOT_NETWORKING
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166 if (have_net) {
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167 // Check for incoming TCP debug connection
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168 net_io_test();
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169 }
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170 #endif
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171 } else {
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172 if (res == 0) {
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173 // Special case of '$' - need to start GDB protocol
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174 CYGACC_CALL_IF_SET_CONSOLE_COMM(cur);
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175 breakpoint(); // Get GDB stubs started, with a proper environment, etc.
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176 } else {
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177 if (strlen(line) > 0) {
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178 if ((cmd = parse(line, &argc, &argv[0])) != (struct cmd *)0) {
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179 (cmd->fun)(argc, argv);
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180 } else {
130
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181 printf("** Error: Illegal command: %s\n", line);
115
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182 }
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183 }
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184 prompt = true;
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185 }
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186 }
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187 }
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188 }
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189
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190 void
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191 do_caches(int argc, char *argv[])
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192 {
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193 unsigned long oldints;
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194 if (argc == 2) {
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195 if (strcmpci(argv[1], "on") == 0) {
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196 HAL_DISABLE_INTERRUPTS(oldints);
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197 HAL_ICACHE_ENABLE();
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198 HAL_DCACHE_ENABLE();
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199 HAL_RESTORE_INTERRUPTS(oldints);
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200 } else if (strcmpci(argv[1], "off") == 0) {
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201 HAL_DISABLE_INTERRUPTS(oldints);
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202 HAL_DCACHE_SYNC();
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203 HAL_ICACHE_DISABLE();
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204 HAL_DCACHE_DISABLE();
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205 HAL_DCACHE_SYNC();
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206 HAL_ICACHE_INVALIDATE_ALL();
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207 HAL_DCACHE_INVALIDATE_ALL();
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208 HAL_RESTORE_INTERRUPTS(oldints);
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209 } else {
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210 printf("Invalid cache mode: %s\n", argv[1]);
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211 }
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212 } else {
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213 printf("caches ?\n");
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214 }
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215 }
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216
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217
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218 void
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219 do_help(int argc, char *argv[])
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220 {
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221 struct cmd *cmd;
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222
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223 cmd = __RedBoot_CMD_TAB__;
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224 while (cmd != &__RedBoot_CMD_TAB_END__) {
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225 printf("%s\n %s %s\n", cmd->help, cmd->str, cmd->usage);
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226 cmd++;
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227 }
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228 return;
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229 }
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230
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231 void
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232 do_dump(int argc, char *argv[])
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233 {
130
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234 struct option_info opts[2];
115
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235 unsigned long base, len;
130
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236 bool base_set, len_set;
115
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237
130
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238 init_opts(&opts[0], 'b', true, OPTION_ARG_TYPE_NUM,
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239 (void **)&base, (bool *)&base_set, "base address");
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240 init_opts(&opts[1], 'l', true, OPTION_ARG_TYPE_NUM,
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241 (void **)&len, (bool *)&len_set, "length");
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242 if (!scan_opts(argc, argv, 1, opts, 2, 0, 0, ""))
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243 {
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244 return;
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245 }
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246 if (!base_set) {
115
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247 printf("Dump what [location]?\n");
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248 return;
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249 }
130
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250 if (!len_set) {
115
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251 len = 32;
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252 }
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253 dump_buf((void *)base, len);
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254 }
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255
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256 void
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257 do_go(int argc, char *argv[])
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258 {
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259 typedef void code_fun(void);
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260 unsigned long entry;
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261 unsigned long oldints;
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262 code_fun *fun;
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263 bool wait_time_set;
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264 int wait_time, res;
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265 struct option_info opts[1];
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266 char line[8];
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267
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268 entry = (unsigned long)entry_address; // Default from last 'load' operation
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269 init_opts(&opts[0], 'w', true, OPTION_ARG_TYPE_NUM,
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270 (void **)&wait_time, (bool *)&wait_time_set, "wait timeout");
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271 if (!scan_opts(argc, argv, 1, opts, 1, (void *)&entry, OPTION_ARG_TYPE_NUM, "starting address"))
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272 {
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273 return;
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274 }
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275 if (wait_time_set) {
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276 printf("About to start execution at %p - abort with ^C within %d seconds\n",
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277 (void *)entry, wait_time);
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278 res = gets(line, sizeof(line), wait_time*1000);
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279 if (res == -2) {
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280 return;
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281 }
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282 }
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283 fun = (code_fun *)entry;
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284 HAL_DISABLE_INTERRUPTS(oldints);
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285 HAL_DCACHE_SYNC();
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286 HAL_ICACHE_DISABLE();
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287 HAL_DCACHE_DISABLE();
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288 HAL_DCACHE_SYNC();
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289 HAL_ICACHE_INVALIDATE_ALL();
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290 HAL_DCACHE_INVALIDATE_ALL();
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291 (*fun)();
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292 }
132
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293
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294 //
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295 // [Null] Builtin [Power On] Self Test
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296 //
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297 void bist(void) CYGBLD_ATTRIB_WEAK;
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298
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299 void
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300 bist(void)
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301 {
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302 }