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annotate packages/redboot/current/src/main.c @ 156:b939e9cada46

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Merge from eCos master repository on 2001-03-29-21:44:39-BST
author jlarmour
date Fri, 06 Apr 2001 17:20:13 +0000
parents 25e238959bae
children f2545e5de153
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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_if.h>
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51 #include <cyg/hal/hal_cache.h>
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52 #include CYGHWR_MEMORY_LAYOUT_H
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53
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54 #include <cyg/hal/hal_tables.h>
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55 #ifdef CYGBLD_HAL_PLATFORM_STUB_H
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56 #include CYGBLD_HAL_PLATFORM_STUB_H
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57 #else
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58 #include <cyg/hal/plf_stub.h>
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59 #endif
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60
132
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61 // Builtin Self Test (BIST)
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62 externC void bist(void);
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63
115
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64 // GDB interfaces
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65 extern void breakpoint(void);
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66
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67 // CLI command processing (defined in this file)
138
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68 RedBoot_cmd("version",
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69 "Display RedBoot version information",
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70 "",
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71 do_version
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72 );
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73 RedBoot_cmd("help",
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74 "Help about help?",
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75 "[<topic>]",
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76 do_help
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77 );
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78 RedBoot_cmd("go",
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79 "Execute code at a location",
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80 "[-w <timeout>] [entry]",
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81 do_go
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82 );
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83 RedBoot_cmd("dump",
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84 "Display (hex dump) a range of memory",
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85 "-b <location> [-l <length>]",
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86 do_dump
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87 );
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88 RedBoot_cmd("cksum",
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89 "Compute a 32bit checksum [POSIX algorithm] for a range of memory",
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90 "-b <location> -l <length>",
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91 do_cksum
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92 );
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93 RedBoot_cmd("cache",
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94 "Manage machine caches",
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95 "[ON | OFF]",
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96 do_caches
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97 );
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98 #ifdef HAL_PLATFORM_RESET
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99 RedBoot_cmd("reset",
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100 "Reset the system",
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101 "",
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102 do_reset
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103 );
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104 #endif
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105
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106 // Define table boundaries
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107 CYG_HAL_TABLE_BEGIN( __RedBoot_INIT_TAB__, RedBoot_inits );
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108 CYG_HAL_TABLE_END( __RedBoot_INIT_TAB_END__, RedBoot_inits );
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109 extern struct init_tab_entry __RedBoot_INIT_TAB__[], __RedBoot_INIT_TAB_END__;
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110
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111 CYG_HAL_TABLE_BEGIN( __RedBoot_CMD_TAB__, RedBoot_commands );
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112 CYG_HAL_TABLE_END( __RedBoot_CMD_TAB_END__, RedBoot_commands );
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113 extern struct cmd __RedBoot_CMD_TAB__[], __RedBoot_CMD_TAB_END__;
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114
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115 CYG_HAL_TABLE_BEGIN( __RedBoot_IDLE_TAB__, RedBoot_idle );
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116 CYG_HAL_TABLE_END( __RedBoot_IDLE_TAB_END__, RedBoot_idle );
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117 extern struct idle_tab_entry __RedBoot_IDLE_TAB__[], __RedBoot_IDLE_TAB_END__;
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118
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119 #ifdef HAL_ARCH_PROGRAM_NEW_STACK
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120 extern void HAL_ARCH_PROGRAM_NEW_STACK(void *fun);
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121 #endif
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122
138
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123 void
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124 do_version(int argc, char *argv[])
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125 {
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126 extern char RedBoot_version[];
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127 printf(RedBoot_version);
138
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128 #ifdef HAL_PLATFORM_CPU
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129 printf("Platform: %s (%s) %s\n", HAL_PLATFORM_BOARD, HAL_PLATFORM_CPU, HAL_PLATFORM_EXTRA);
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130 #endif
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131 printf("Copyright (C) 2000, 2001, Red Hat, Inc.\n\n");
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132 printf("RAM: %p-%p, %p-%p available\n",
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133 (void*)ram_start, (void*)ram_end,
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134 (void*)user_ram_start, (void *)user_ram_end);
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135 }
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136
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137 void
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138 do_idle(bool is_idle)
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139 {
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140 struct idle_tab_entry *idle_entry;
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141
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142 for (idle_entry = __RedBoot_IDLE_TAB__;
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143 idle_entry != &__RedBoot_IDLE_TAB_END__; idle_entry++) {
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144 (*idle_entry->fun)(is_idle);
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145 }
138
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146 }
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147
115
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148 //
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149 // This is the main entry point for RedBoot
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150 //
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151 void
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152 cyg_start(void)
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153 {
143
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154 int res = 0;
115
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155 bool prompt = true;
143
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156 static char line[CYGPKG_REDBOOT_MAX_CMD_LINE];
115
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157 struct cmd *cmd;
156
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158 int cur;
126
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159 struct init_tab_entry *init_entry;
156
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160
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161 // Make sure the channels are properly initialized.
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162 hal_if_diag_init();
115
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163
156
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164 // Force console to output raw text - but remember the old setting
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165 // so it can be restored if interaction with a debugger is
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166 // required.
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167 cur = CYGACC_CALL_IF_SET_CONSOLE_COMM(CYGNUM_CALL_IF_SET_COMM_ID_QUERY_CURRENT);
151
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168 CYGACC_CALL_IF_SET_CONSOLE_COMM(CYGNUM_HAL_VIRTUAL_VECTOR_DEBUG_CHANNEL);
115
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169 #ifdef CYGPKG_REDBOOT_ANY_CONSOLE
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170 console_selected = false;
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171 #endif
128
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172 console_echo = true;
115
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173 CYGACC_CALL_IF_DELAY_US(2*100000);
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174
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175 ram_start = (unsigned char *)CYGMEM_REGION_ram;
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176 ram_end = (unsigned char *)(CYGMEM_REGION_ram+CYGMEM_REGION_ram_SIZE);
150
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177 #ifdef HAL_MEM_REAL_REGION_TOP
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178 {
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179 unsigned char *ram_end_tmp = ram_end;
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180 ram_end = HAL_MEM_REAL_REGION_TOP( ram_end_tmp );
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181 }
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182 #endif
156
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183 #ifdef CYGMEM_SECTION_heap1
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184 workspace_start = (unsigned char *)CYGMEM_SECTION_heap1;
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185 workspace_end = (unsigned char *)(CYGMEM_SECTION_heap1+CYGMEM_SECTION_heap1_SIZE);
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186 workspace_size = CYGMEM_SECTION_heap1_SIZE;
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187 #else
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188 workspace_start = (unsigned char *)CYGMEM_REGION_ram;
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189 workspace_end = (unsigned char *)(CYGMEM_REGION_ram+CYGMEM_REGION_ram_SIZE);
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190 workspace_size = CYGMEM_REGION_ram_SIZE;
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191 #endif
115
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192
132
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193 bist();
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194
126
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195 for (init_entry = __RedBoot_INIT_TAB__; init_entry != &__RedBoot_INIT_TAB_END__; init_entry++) {
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196 (*init_entry->fun)();
115
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197 }
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198
156
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199 #ifdef CYGPKG_COMPRESS_ZLIB
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200 #define ZLIB_COMPRESSION_OVERHEAD 0xB400
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201 #else
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202 #define ZLIB_COMPRESSION_OVERHEAD 0
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203 #endif
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204 user_ram_start = workspace_start + ZLIB_COMPRESSION_OVERHEAD;
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205 user_ram_end = workspace_end;
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206 do_version(0,0);
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207
115
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208 #ifdef CYGSEM_REDBOOT_FLASH_CONFIG
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209 // Give the guy a chance to abort any boot script
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210 if (script) {
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211 unsigned char *hold_script = script;
130
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212 int script_timeout_ms = script_timeout * CYGNUM_REDBOOT_FLASH_SCRIPT_TIMEOUT_RESOLUTION;
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213 printf("== Executing boot script in %d.%03d seconds - enter ^C to abort\n",
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214 script_timeout_ms/1000, script_timeout_ms%1000);
115
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215 script = (unsigned char *)0;
156
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216 res = _GETS_CTRLC; // Treat 0 timeout as ^C
151
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217 while (script_timeout_ms >= CYGNUM_REDBOOT_CLI_IDLE_TIMEOUT) {
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218 res = gets(line, sizeof(line), CYGNUM_REDBOOT_CLI_IDLE_TIMEOUT);
143
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219 if (res == _GETS_OK) {
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220 printf("== Executing boot script in %d.%03d seconds - enter ^C to abort\n",
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221 script_timeout_ms/1000, script_timeout_ms%1000);
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222 continue; // Ignore anything but ^C
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223 }
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224 if (res != _GETS_TIMEOUT) break;
151
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225 script_timeout_ms -= CYGNUM_REDBOOT_CLI_IDLE_TIMEOUT;
143
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226 }
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227 if (res == _GETS_CTRLC) {
115
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228 script = (unsigned char *)0; // Disable script
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229 } else {
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230 script = hold_script; // Re-enable script
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231 }
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232 }
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233 #endif
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234
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235 while (true) {
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236 if (prompt) {
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237 printf("RedBoot> ");
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238 prompt = false;
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239 }
151
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240 res = gets(line, sizeof(line), CYGNUM_REDBOOT_CLI_IDLE_TIMEOUT);
143
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241 if (res == _GETS_TIMEOUT) {
115
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242 // No input arrived
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243 } else {
143
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244 if (res == _GETS_GDB) {
156
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245 int dbgchan;
115
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246 // Special case of '$' - need to start GDB protocol
151
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247 gdb_active = true;
115
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248 CYGACC_CALL_IF_SET_CONSOLE_COMM(cur);
141
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249 #ifdef HAL_ARCH_PROGRAM_NEW_STACK
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250 HAL_ARCH_PROGRAM_NEW_STACK(breakpoint);
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251 #else
115
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252 breakpoint(); // Get GDB stubs started, with a proper environment, etc.
141
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253 #endif
156
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254 dbgchan = CYGACC_CALL_IF_SET_DEBUG_COMM(CYGNUM_CALL_IF_SET_COMM_ID_QUERY_CURRENT);
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255 CYGACC_CALL_IF_SET_CONSOLE_COMM(dbgchan);
115
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256 } else {
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257 if (strlen(line) > 0) {
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258 if ((cmd = parse(line, &argc, &argv[0])) != (struct cmd *)0) {
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259 (cmd->fun)(argc, argv);
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260 } else {
143
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261 printf("** Error: Illegal command: \"%s\"\n", argv[0]);
115
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262 }
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263 }
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264 prompt = true;
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265 }
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266 }
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267 }
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268 }
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269
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270 void
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271 do_caches(int argc, char *argv[])
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272 {
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273 unsigned long oldints;
151
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274
115
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275 if (argc == 2) {
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276 if (strcmpci(argv[1], "on") == 0) {
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277 HAL_DISABLE_INTERRUPTS(oldints);
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278 HAL_ICACHE_ENABLE();
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279 HAL_DCACHE_ENABLE();
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280 HAL_RESTORE_INTERRUPTS(oldints);
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281 } else if (strcmpci(argv[1], "off") == 0) {
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282 HAL_DISABLE_INTERRUPTS(oldints);
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283 HAL_DCACHE_SYNC();
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284 HAL_ICACHE_DISABLE();
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285 HAL_DCACHE_DISABLE();
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286 HAL_DCACHE_SYNC();
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287 HAL_ICACHE_INVALIDATE_ALL();
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288 HAL_DCACHE_INVALIDATE_ALL();
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289 HAL_RESTORE_INTERRUPTS(oldints);
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290 } else {
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291 printf("Invalid cache mode: %s\n", argv[1]);
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292 }
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293 } else {
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294 printf("caches ?\n");
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295 }
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296 }
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297
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298
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299 void
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300 do_help(int argc, char *argv[])
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301 {
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302 struct cmd *cmd;
151
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303 char *which = (char *)0;
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304 bool show;
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305 int len = 0;
115
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306
151
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307 if (!scan_opts(argc, argv, 1, 0, 0, (void **)&which, OPTION_ARG_TYPE_STR, "<topic>")) {
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308 printf("Invalid argument\n");
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309 return;
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310 }
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311 if (which) {
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312 len = strlen(which);
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313 }
115
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314 cmd = __RedBoot_CMD_TAB__;
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315 while (cmd != &__RedBoot_CMD_TAB_END__) {
151
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316 show = true;
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317 if (which && (strncmpci(which, cmd->str, len) != 0)) {
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318 show = false;
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319 }
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320 if (show) {
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321 printf("%s\n %s %s\n", cmd->help, cmd->str, cmd->usage);
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322 }
115
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323 cmd++;
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324 }
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325 return;
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326 }
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327
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328 void
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329 do_dump(int argc, char *argv[])
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330 {
130
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331 struct option_info opts[2];
115
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332 unsigned long base, len;
130
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333 bool base_set, len_set;
115
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334
130
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335 init_opts(&opts[0], 'b', true, OPTION_ARG_TYPE_NUM,
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336 (void **)&base, (bool *)&base_set, "base address");
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337 init_opts(&opts[1], 'l', true, OPTION_ARG_TYPE_NUM,
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338 (void **)&len, (bool *)&len_set, "length");
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339 if (!scan_opts(argc, argv, 1, opts, 2, 0, 0, ""))
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340 {
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341 return;
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342 }
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343 if (!base_set) {
115
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344 printf("Dump what [location]?\n");
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345 return;
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346 }
130
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347 if (!len_set) {
115
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348 len = 32;
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349 }
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350 dump_buf((void *)base, len);
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351 }
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352
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353 void
156
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354 do_cksum(int argc, char *argv[])
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355 {
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356 struct option_info opts[2];
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357 unsigned long base, len, crc;
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358 bool base_set, len_set;
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359
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360 init_opts(&opts[0], 'b', true, OPTION_ARG_TYPE_NUM,
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361 (void **)&base, (bool *)&base_set, "base address");
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362 init_opts(&opts[1], 'l', true, OPTION_ARG_TYPE_NUM,
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363 (void **)&len, (bool *)&len_set, "length");
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364 if (!scan_opts(argc, argv, 1, opts, 2, 0, 0, ""))
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365 {
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366 return;
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367 }
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368 if (!base_set || !len_set) {
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369 printf("usage: cksum -b <addr> -l <length>\n");
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370 return;
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371 }
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372 crc = posix_crc32((unsigned char *)base, len);
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373 printf("POSIX cksum = 0x%08lx (%lu)\n", crc, crc);
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374 }
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375
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376 void
115
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377 do_go(int argc, char *argv[])
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378 {
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379 typedef void code_fun(void);
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380 unsigned long entry;
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381 unsigned long oldints;
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382 code_fun *fun;
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383 bool wait_time_set;
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384 int wait_time, res;
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385 struct option_info opts[1];
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386 char line[8];
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387
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388 entry = (unsigned long)entry_address; // Default from last 'load' operation
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389 init_opts(&opts[0], 'w', true, OPTION_ARG_TYPE_NUM,
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390 (void **)&wait_time, (bool *)&wait_time_set, "wait timeout");
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391 if (!scan_opts(argc, argv, 1, opts, 1, (void *)&entry, OPTION_ARG_TYPE_NUM, "starting address"))
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392 {
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393 return;
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394 }
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395 if (wait_time_set) {
156
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396 int script_timeout_ms = wait_time * 1000;
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397 #ifdef CYGSEM_REDBOOT_FLASH_CONFIG
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398 unsigned char *hold_script = script;
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399 script = (unsigned char *)0;
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400 #endif
115
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401 printf("About to start execution at %p - abort with ^C within %d seconds\n",
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402 (void *)entry, wait_time);
156
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403 while (script_timeout_ms >= CYGNUM_REDBOOT_CLI_IDLE_TIMEOUT) {
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404 res = gets(line, sizeof(line), CYGNUM_REDBOOT_CLI_IDLE_TIMEOUT);
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405 if (res == _GETS_CTRLC) {
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406 #ifdef CYGSEM_REDBOOT_FLASH_CONFIG
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407 script = hold_script; // Re-enable script
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408 #endif
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409 return;
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410 }
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411 script_timeout_ms -= CYGNUM_REDBOOT_CLI_IDLE_TIMEOUT;
115
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412 }
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413 }
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414 fun = (code_fun *)entry;
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415 HAL_DISABLE_INTERRUPTS(oldints);
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416 HAL_DCACHE_SYNC();
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417 HAL_ICACHE_DISABLE();
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418 HAL_DCACHE_DISABLE();
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419 HAL_DCACHE_SYNC();
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420 HAL_ICACHE_INVALIDATE_ALL();
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421 HAL_DCACHE_INVALIDATE_ALL();
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422 #ifdef HAL_ARCH_PROGRAM_NEW_STACK
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423 HAL_ARCH_PROGRAM_NEW_STACK(fun);
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424 #else
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425 (*fun)();
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426 #endif
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427 }
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428
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429 #ifdef HAL_PLATFORM_RESET
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430 void
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431 do_reset(int argc, char *argv[])
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432 {
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433 printf("... Resetting.");
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434 CYGACC_CALL_IF_DELAY_US(2*100000);
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435 printf("\n");
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436 CYGACC_CALL_IF_DELAY_US(50000);
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437 HAL_PLATFORM_RESET();
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438 printf("!! oops, RESET not working on this platform\n");
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439 }
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440 #endif
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441
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442 //
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443 // [Null] Builtin [Power On] Self Test
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444 //
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445 void bist(void) CYGBLD_ATTRIB_WEAK;
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446
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447 void
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448 bist(void)
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449 {
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450 }