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annotate packages/redboot/current/src/main.c @ 130:eb9fd8c04db3 ecos-sw-2000-10-23

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Merge from eCos master repository on 2000-10-23-17:01:37-BST
author jlarmour
date Mon, 23 Oct 2000 17:10:57 +0000
parents 0c2b7be0d798
children 0ae0bc38e387
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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
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55 // GDB interfaces
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56 extern void breakpoint(void);
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57
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58 // CLI command processing (defined in this file)
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59 RedBoot_cmd("help",
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60 "Help about help?",
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61 "<topic>",
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62 do_help
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63 );
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64 RedBoot_cmd("go",
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65 "Execute code at a location",
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66 "[-w <timeout>] [entry]",
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67 do_go
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68 );
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69 RedBoot_cmd("dump",
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70 "Display (hex dump) a range of memory",
130
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71 "-b <location> [-l <length>]",
115
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72 do_dump
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73 );
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74 RedBoot_cmd("cache",
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75 "Manage machine caches",
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76 "[ON | OFF]",
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77 do_caches
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78 );
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79
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80 // Define table boundaries
130
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81 CYG_HAL_TABLE_BEGIN( __RedBoot_INIT_TAB__, RedBoot_inits );
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82 CYG_HAL_TABLE_END( __RedBoot_INIT_TAB_END__, RedBoot_inits );
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83 extern struct init_tab_entry __RedBoot_INIT_TAB__[], __RedBoot_INIT_TAB_END__;
115
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84 CYG_HAL_TABLE_BEGIN( __RedBoot_CMD_TAB__, RedBoot_commands );
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85 CYG_HAL_TABLE_END( __RedBoot_CMD_TAB_END__, RedBoot_commands );
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86 extern struct cmd __RedBoot_CMD_TAB__[], __RedBoot_CMD_TAB_END__;
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87
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88 //
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89 // This is the main entry point for RedBoot
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90 //
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91 void
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92 cyg_start(void)
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93 {
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94 int res;
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95 bool prompt = true;
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96 char line[256];
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97 struct cmd *cmd;
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98 int cur = CYGACC_CALL_IF_SET_CONSOLE_COMM(CYGNUM_CALL_IF_SET_COMM_ID_QUERY_CURRENT);
126
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99 struct init_tab_entry *init_entry;
115
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100
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101 CYGACC_CALL_IF_SET_CONSOLE_COMM(CYGNUM_HAL_VIRTUAL_VECTOR_CONSOLE_CHANNEL);
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102 #ifdef CYGPKG_REDBOOT_ANY_CONSOLE
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103 console_selected = false;
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104 #endif
128
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105 console_echo = true;
115
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106 CYGACC_CALL_IF_DELAY_US(2*100000);
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107
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108 ram_start = (unsigned char *)CYGMEM_REGION_ram;
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109 ram_end = (unsigned char *)(CYGMEM_REGION_ram+CYGMEM_REGION_ram_SIZE);
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110
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111 printf("\nRedBoot(tm) debug environment - built %s, %s\n", __TIME__, __DATE__);
126
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112 #ifdef HAL_PLATFORM_CPU
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113 printf("Platform: %s (%s) %s\n", HAL_PLATFORM_BOARD, HAL_PLATFORM_CPU, HAL_PLATFORM_EXTRA);
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114 #endif
115
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115 printf("Copyright (C) 2000, Red Hat, Inc.\n\n");
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116 printf("RAM: %p-%p\n", ram_start, ram_end);
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117
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118 config_ok = false;
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119
126
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120 for (init_entry = __RedBoot_INIT_TAB__; init_entry != &__RedBoot_INIT_TAB_END__; init_entry++) {
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121 (*init_entry->fun)();
115
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122 }
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123
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124 #ifdef CYGSEM_REDBOOT_FLASH_CONFIG
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125 // Give the guy a chance to abort any boot script
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126 if (script) {
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127 unsigned char *hold_script = script;
130
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128 int script_timeout_ms = script_timeout * CYGNUM_REDBOOT_FLASH_SCRIPT_TIMEOUT_RESOLUTION;
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129 printf("== Executing boot script in %d.%03d seconds - enter ^C to abort\n",
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130 script_timeout_ms/1000, script_timeout_ms%1000);
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131 script = (unsigned char *)0;
130
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132 res = gets(line, sizeof(line), script_timeout_ms);
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133 if (res == -2) {
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134 script = (unsigned char *)0; // Disable script
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135 } else {
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136 script = hold_script; // Re-enable script
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137 }
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138 }
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139 #endif
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140
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141 while (true) {
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142 if (prompt) {
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143 printf("RedBoot> ");
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144 prompt = false;
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145 }
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146 res = gets(line, sizeof(line), 250);
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147 if (res < 0) {
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148 // No input arrived
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149 #ifdef CYGPKG_REDBOOT_NETWORKING
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150 if (have_net) {
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151 // Check for incoming TCP debug connection
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152 net_io_test();
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153 }
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154 #endif
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155 } else {
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156 if (res == 0) {
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157 // Special case of '$' - need to start GDB protocol
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158 CYGACC_CALL_IF_SET_CONSOLE_COMM(cur);
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159 breakpoint(); // Get GDB stubs started, with a proper environment, etc.
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160 } else {
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161 if (strlen(line) > 0) {
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162 if ((cmd = parse(line, &argc, &argv[0])) != (struct cmd *)0) {
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163 (cmd->fun)(argc, argv);
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164 } else {
130
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165 printf("** Error: Illegal command: %s\n", line);
115
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166 }
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167 }
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168 prompt = true;
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169 }
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170 }
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171 }
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172 }
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173
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174 void
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175 do_caches(int argc, char *argv[])
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176 {
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177 unsigned long oldints;
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178 if (argc == 2) {
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179 if (strcmpci(argv[1], "on") == 0) {
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180 HAL_DISABLE_INTERRUPTS(oldints);
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181 HAL_ICACHE_ENABLE();
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182 HAL_DCACHE_ENABLE();
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183 HAL_RESTORE_INTERRUPTS(oldints);
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184 } else if (strcmpci(argv[1], "off") == 0) {
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185 HAL_DISABLE_INTERRUPTS(oldints);
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186 HAL_DCACHE_SYNC();
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187 HAL_ICACHE_DISABLE();
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188 HAL_DCACHE_DISABLE();
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189 HAL_DCACHE_SYNC();
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190 HAL_ICACHE_INVALIDATE_ALL();
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191 HAL_DCACHE_INVALIDATE_ALL();
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192 HAL_RESTORE_INTERRUPTS(oldints);
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193 } else {
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194 printf("Invalid cache mode: %s\n", argv[1]);
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195 }
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196 } else {
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197 printf("caches ?\n");
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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 void
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203 do_help(int argc, char *argv[])
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204 {
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205 struct cmd *cmd;
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206
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207 cmd = __RedBoot_CMD_TAB__;
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208 while (cmd != &__RedBoot_CMD_TAB_END__) {
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209 printf("%s\n %s %s\n", cmd->help, cmd->str, cmd->usage);
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210 cmd++;
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211 }
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212 return;
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213 }
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214
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215 void
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216 do_dump(int argc, char *argv[])
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217 {
130
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218 struct option_info opts[2];
115
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219 unsigned long base, len;
130
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220 bool base_set, len_set;
115
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221
130
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222 init_opts(&opts[0], 'b', true, OPTION_ARG_TYPE_NUM,
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223 (void **)&base, (bool *)&base_set, "base address");
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224 init_opts(&opts[1], 'l', true, OPTION_ARG_TYPE_NUM,
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225 (void **)&len, (bool *)&len_set, "length");
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226 if (!scan_opts(argc, argv, 1, opts, 2, 0, 0, ""))
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227 {
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228 return;
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229 }
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230 if (!base_set) {
115
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231 printf("Dump what [location]?\n");
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232 return;
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233 }
130
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234 if (!len_set) {
115
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235 len = 32;
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236 }
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237 dump_buf((void *)base, len);
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238 }
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239
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240 void
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241 do_go(int argc, char *argv[])
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242 {
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243 typedef void code_fun(void);
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244 unsigned long entry;
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245 unsigned long oldints;
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246 code_fun *fun;
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247 bool wait_time_set;
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248 int wait_time, res;
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249 struct option_info opts[1];
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250 char line[8];
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251
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252 entry = (unsigned long)entry_address; // Default from last 'load' operation
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253 init_opts(&opts[0], 'w', true, OPTION_ARG_TYPE_NUM,
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254 (void **)&wait_time, (bool *)&wait_time_set, "wait timeout");
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255 if (!scan_opts(argc, argv, 1, opts, 1, (void *)&entry, OPTION_ARG_TYPE_NUM, "starting address"))
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256 {
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257 return;
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258 }
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259 if (wait_time_set) {
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260 printf("About to start execution at %p - abort with ^C within %d seconds\n",
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261 (void *)entry, wait_time);
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262 res = gets(line, sizeof(line), wait_time*1000);
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263 if (res == -2) {
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264 return;
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265 }
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266 }
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267 fun = (code_fun *)entry;
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268 HAL_DISABLE_INTERRUPTS(oldints);
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269 HAL_DCACHE_SYNC();
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270 HAL_ICACHE_DISABLE();
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271 HAL_DCACHE_DISABLE();
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272 HAL_DCACHE_SYNC();
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273 HAL_ICACHE_INVALIDATE_ALL();
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274 HAL_DCACHE_INVALIDATE_ALL();
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275 (*fun)();
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276 }