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annotate packages/redboot/current/src/main.c @ 151:25e238959bae

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Merge from eCos master repository on 2001-02-12-23:44:24-GMT
author jlarmour
date Tue, 13 Feb 2001 01:23:16 +0000
parents f0e3fb000de8
children b939e9cada46
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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, 2001 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 #ifdef CYGBLD_HAL_PLATFORM_STUB_H
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55 #include CYGBLD_HAL_PLATFORM_STUB_H
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56 #else
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57 #include <cyg/hal/plf_stub.h>
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58 #endif
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59
132
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60 // Builtin Self Test (BIST)
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61 externC void bist(void);
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62
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63 // GDB interfaces
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64 extern void breakpoint(void);
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65
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66 // CLI command processing (defined in this file)
138
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67 RedBoot_cmd("version",
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68 "Display RedBoot version information",
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69 "",
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70 do_version
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71 );
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72 RedBoot_cmd("help",
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73 "Help about help?",
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74 "[<topic>]",
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75 do_help
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76 );
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77 RedBoot_cmd("go",
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78 "Execute code at a location",
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79 "[-w <timeout>] [entry]",
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80 do_go
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81 );
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82 RedBoot_cmd("dump",
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83 "Display (hex dump) a range of memory",
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84 "-b <location> [-l <length>]",
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85 do_dump
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86 );
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87 RedBoot_cmd("cache",
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88 "Manage machine caches",
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89 "[ON | OFF]",
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90 do_caches
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91 );
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92 #ifdef HAL_PLATFORM_RESET
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93 RedBoot_cmd("reset",
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94 "Reset the system",
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95 "",
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96 do_reset
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97 );
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98 #endif
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99
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100 // Define table boundaries
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101 CYG_HAL_TABLE_BEGIN( __RedBoot_INIT_TAB__, RedBoot_inits );
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102 CYG_HAL_TABLE_END( __RedBoot_INIT_TAB_END__, RedBoot_inits );
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103 extern struct init_tab_entry __RedBoot_INIT_TAB__[], __RedBoot_INIT_TAB_END__;
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104
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105 CYG_HAL_TABLE_BEGIN( __RedBoot_CMD_TAB__, RedBoot_commands );
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106 CYG_HAL_TABLE_END( __RedBoot_CMD_TAB_END__, RedBoot_commands );
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107 extern struct cmd __RedBoot_CMD_TAB__[], __RedBoot_CMD_TAB_END__;
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108
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109 CYG_HAL_TABLE_BEGIN( __RedBoot_IDLE_TAB__, RedBoot_idle );
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110 CYG_HAL_TABLE_END( __RedBoot_IDLE_TAB_END__, RedBoot_idle );
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111 extern struct idle_tab_entry __RedBoot_IDLE_TAB__[], __RedBoot_IDLE_TAB_END__;
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112
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113 #ifdef HAL_ARCH_PROGRAM_NEW_STACK
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114 extern void HAL_ARCH_PROGRAM_NEW_STACK(void *fun);
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115 #endif
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116
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117 void
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118 do_version(int argc, char *argv[])
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119 {
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120 extern char RedBoot_version[];
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121 printf(RedBoot_version);
138
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122 #ifdef HAL_PLATFORM_CPU
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123 printf("Platform: %s (%s) %s\n", HAL_PLATFORM_BOARD, HAL_PLATFORM_CPU, HAL_PLATFORM_EXTRA);
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124 #endif
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125 printf("Copyright (C) 2000, 2001, Red Hat, Inc.\n\n");
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126 printf("RAM: %p-%p\n", (void*)ram_start, (void*)ram_end);
138
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127 }
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128
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129 //
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130 // This is the main entry point for RedBoot
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131 //
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132 void
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133 cyg_start(void)
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134 {
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135 int res = 0;
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136 bool prompt = true;
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137 static char line[CYGPKG_REDBOOT_MAX_CMD_LINE];
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138 struct cmd *cmd;
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139 int cur = CYGACC_CALL_IF_SET_CONSOLE_COMM(CYGNUM_CALL_IF_SET_COMM_ID_QUERY_CURRENT);
126
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140 struct init_tab_entry *init_entry;
151
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141 struct idle_tab_entry *idle_entry;
115
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142
151
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143 CYGACC_CALL_IF_SET_CONSOLE_COMM(CYGNUM_HAL_VIRTUAL_VECTOR_DEBUG_CHANNEL);
115
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144 #ifdef CYGPKG_REDBOOT_ANY_CONSOLE
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145 console_selected = false;
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146 #endif
128
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147 console_echo = true;
115
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148 CYGACC_CALL_IF_DELAY_US(2*100000);
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149
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150 ram_start = (unsigned char *)CYGMEM_REGION_ram;
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151 ram_end = (unsigned char *)(CYGMEM_REGION_ram+CYGMEM_REGION_ram_SIZE);
150
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152 #ifdef HAL_MEM_REAL_REGION_TOP
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153 {
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154 unsigned char *ram_end_tmp = ram_end;
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155 ram_end = HAL_MEM_REAL_REGION_TOP( ram_end_tmp );
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156 }
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157 #endif
115
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158
132
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159 bist();
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160
138
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161 do_version(0,0);
115
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162
126
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163 for (init_entry = __RedBoot_INIT_TAB__; init_entry != &__RedBoot_INIT_TAB_END__; init_entry++) {
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164 (*init_entry->fun)();
115
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165 }
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166
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167 #ifdef CYGSEM_REDBOOT_FLASH_CONFIG
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168 // Give the guy a chance to abort any boot script
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169 if (script) {
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170 unsigned char *hold_script = script;
130
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171 int script_timeout_ms = script_timeout * CYGNUM_REDBOOT_FLASH_SCRIPT_TIMEOUT_RESOLUTION;
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172 printf("== Executing boot script in %d.%03d seconds - enter ^C to abort\n",
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173 script_timeout_ms/1000, script_timeout_ms%1000);
115
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174 script = (unsigned char *)0;
151
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175 while (script_timeout_ms >= CYGNUM_REDBOOT_CLI_IDLE_TIMEOUT) {
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176 res = gets(line, sizeof(line), CYGNUM_REDBOOT_CLI_IDLE_TIMEOUT);
143
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177 if (res == _GETS_OK) {
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178 printf("== Executing boot script in %d.%03d seconds - enter ^C to abort\n",
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179 script_timeout_ms/1000, script_timeout_ms%1000);
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180 continue; // Ignore anything but ^C
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181 }
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182 if (res != _GETS_TIMEOUT) break;
151
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183 for (idle_entry = __RedBoot_IDLE_TAB__;
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184 idle_entry != &__RedBoot_IDLE_TAB_END__; idle_entry++) {
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185 (*idle_entry->fun)();
143
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186 }
151
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187 script_timeout_ms -= CYGNUM_REDBOOT_CLI_IDLE_TIMEOUT;
143
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188 }
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189 if (res == _GETS_CTRLC) {
115
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190 script = (unsigned char *)0; // Disable script
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191 } else {
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192 script = hold_script; // Re-enable script
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193 }
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194 }
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195 #endif
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196
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197 while (true) {
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198 if (prompt) {
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199 printf("RedBoot> ");
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200 prompt = false;
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201 }
151
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202 res = gets(line, sizeof(line), CYGNUM_REDBOOT_CLI_IDLE_TIMEOUT);
143
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203 if (res == _GETS_TIMEOUT) {
115
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204 // No input arrived
151
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205 for (idle_entry = __RedBoot_IDLE_TAB__;
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206 idle_entry != &__RedBoot_IDLE_TAB_END__; idle_entry++) {
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207 (*idle_entry->fun)();
115
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208 }
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209 } else {
143
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210 if (res == _GETS_GDB) {
115
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211 // Special case of '$' - need to start GDB protocol
151
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212 gdb_active = true;
115
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213 CYGACC_CALL_IF_SET_CONSOLE_COMM(cur);
141
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214 #ifdef HAL_ARCH_PROGRAM_NEW_STACK
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215 HAL_ARCH_PROGRAM_NEW_STACK(breakpoint);
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216 #else
115
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217 breakpoint(); // Get GDB stubs started, with a proper environment, etc.
141
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218 #endif
115
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219 } else {
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220 if (strlen(line) > 0) {
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221 if ((cmd = parse(line, &argc, &argv[0])) != (struct cmd *)0) {
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222 (cmd->fun)(argc, argv);
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223 } else {
143
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224 printf("** Error: Illegal command: \"%s\"\n", argv[0]);
115
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225 }
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226 }
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227 prompt = true;
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228 }
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229 }
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230 }
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231 }
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232
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233 void
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234 do_caches(int argc, char *argv[])
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235 {
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236 unsigned long oldints;
151
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237
115
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238 if (argc == 2) {
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239 if (strcmpci(argv[1], "on") == 0) {
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240 HAL_DISABLE_INTERRUPTS(oldints);
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241 HAL_ICACHE_ENABLE();
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242 HAL_DCACHE_ENABLE();
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243 HAL_RESTORE_INTERRUPTS(oldints);
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244 } else if (strcmpci(argv[1], "off") == 0) {
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245 HAL_DISABLE_INTERRUPTS(oldints);
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246 HAL_DCACHE_SYNC();
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247 HAL_ICACHE_DISABLE();
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248 HAL_DCACHE_DISABLE();
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249 HAL_DCACHE_SYNC();
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250 HAL_ICACHE_INVALIDATE_ALL();
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251 HAL_DCACHE_INVALIDATE_ALL();
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252 HAL_RESTORE_INTERRUPTS(oldints);
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253 } else {
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254 printf("Invalid cache mode: %s\n", argv[1]);
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255 }
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256 } else {
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257 printf("caches ?\n");
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258 }
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259 }
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260
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261
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262 void
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263 do_help(int argc, char *argv[])
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264 {
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265 struct cmd *cmd;
151
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266 char *which = (char *)0;
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267 bool show;
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268 int len = 0;
115
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269
151
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270 if (!scan_opts(argc, argv, 1, 0, 0, (void **)&which, OPTION_ARG_TYPE_STR, "<topic>")) {
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271 printf("Invalid argument\n");
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272 return;
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273 }
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274 if (which) {
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275 len = strlen(which);
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276 }
115
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277 cmd = __RedBoot_CMD_TAB__;
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278 while (cmd != &__RedBoot_CMD_TAB_END__) {
151
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279 show = true;
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280 if (which && (strncmpci(which, cmd->str, len) != 0)) {
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281 show = false;
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282 }
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283 if (show) {
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284 printf("%s\n %s %s\n", cmd->help, cmd->str, cmd->usage);
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285 }
115
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286 cmd++;
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287 }
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288 return;
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289 }
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290
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291 void
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292 do_dump(int argc, char *argv[])
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293 {
130
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294 struct option_info opts[2];
115
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295 unsigned long base, len;
130
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296 bool base_set, len_set;
115
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297
130
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298 init_opts(&opts[0], 'b', true, OPTION_ARG_TYPE_NUM,
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299 (void **)&base, (bool *)&base_set, "base address");
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300 init_opts(&opts[1], 'l', true, OPTION_ARG_TYPE_NUM,
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301 (void **)&len, (bool *)&len_set, "length");
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302 if (!scan_opts(argc, argv, 1, opts, 2, 0, 0, ""))
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303 {
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304 return;
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305 }
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306 if (!base_set) {
115
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307 printf("Dump what [location]?\n");
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308 return;
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309 }
130
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310 if (!len_set) {
115
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311 len = 32;
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312 }
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313 dump_buf((void *)base, len);
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314 }
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315
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316 void
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317 do_go(int argc, char *argv[])
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318 {
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319 typedef void code_fun(void);
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320 unsigned long entry;
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321 unsigned long oldints;
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322 code_fun *fun;
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323 bool wait_time_set;
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324 int wait_time, res;
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325 struct option_info opts[1];
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326 char line[8];
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327
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328 entry = (unsigned long)entry_address; // Default from last 'load' operation
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329 init_opts(&opts[0], 'w', true, OPTION_ARG_TYPE_NUM,
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330 (void **)&wait_time, (bool *)&wait_time_set, "wait timeout");
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331 if (!scan_opts(argc, argv, 1, opts, 1, (void *)&entry, OPTION_ARG_TYPE_NUM, "starting address"))
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332 {
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333 return;
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334 }
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335 if (wait_time_set) {
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336 printf("About to start execution at %p - abort with ^C within %d seconds\n",
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337 (void *)entry, wait_time);
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338 res = gets(line, sizeof(line), wait_time*1000);
143
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339 if (res == _GETS_CTRLC) {
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340 return;
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341 }
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342 }
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343 fun = (code_fun *)entry;
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344 HAL_DISABLE_INTERRUPTS(oldints);
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345 HAL_DCACHE_SYNC();
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346 HAL_ICACHE_DISABLE();
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347 HAL_DCACHE_DISABLE();
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348 HAL_DCACHE_SYNC();
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349 HAL_ICACHE_INVALIDATE_ALL();
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350 HAL_DCACHE_INVALIDATE_ALL();
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351 #ifdef HAL_ARCH_PROGRAM_NEW_STACK
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352 HAL_ARCH_PROGRAM_NEW_STACK(fun);
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353 #else
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354 (*fun)();
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355 #endif
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356 }
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357
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358 #ifdef HAL_PLATFORM_RESET
143
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359 void
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360 do_reset(int argc, char *argv[])
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361 {
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362 printf("... Resetting.");
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363 CYGACC_CALL_IF_DELAY_US(2*100000);
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364 printf("\n");
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365 CYGACC_CALL_IF_DELAY_US(50000);
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366 HAL_PLATFORM_RESET();
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367 printf("!! oops, RESET not working on this platform\n");
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368 }
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369 #endif
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370
132
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371 //
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372 // [Null] Builtin [Power On] Self Test
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373 //
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374 void bist(void) CYGBLD_ATTRIB_WEAK;
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375
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376 void
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377 bist(void)
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378 {
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379 }