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annotate packages/redboot/current/src/main.c @ 159:511f4dc167f6

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Merge from eCos master repository on 2001-05-18-01:30:05-BST
author jlarmour
date Fri, 18 May 2001 06:32:28 +0000
parents f2545e5de153
children 0d0f03f76f6a
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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 #ifdef CYGSEM_REDBOOT_VARIBLE_BAUD_RATE
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106 RedBoot_cmd("baudrate",
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107 "Set/Query the system console baud rate",
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108 "[-b <rate>]",
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109 do_baud_rate
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110 );
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111 #endif
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112
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113 // Define table boundaries
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114 CYG_HAL_TABLE_BEGIN( __RedBoot_INIT_TAB__, RedBoot_inits );
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115 CYG_HAL_TABLE_END( __RedBoot_INIT_TAB_END__, RedBoot_inits );
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116 extern struct init_tab_entry __RedBoot_INIT_TAB__[], __RedBoot_INIT_TAB_END__;
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117
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118 CYG_HAL_TABLE_BEGIN( __RedBoot_CMD_TAB__, RedBoot_commands );
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119 CYG_HAL_TABLE_END( __RedBoot_CMD_TAB_END__, RedBoot_commands );
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120 extern struct cmd __RedBoot_CMD_TAB__[], __RedBoot_CMD_TAB_END__;
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121
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122 CYG_HAL_TABLE_BEGIN( __RedBoot_IDLE_TAB__, RedBoot_idle );
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123 CYG_HAL_TABLE_END( __RedBoot_IDLE_TAB_END__, RedBoot_idle );
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124 extern struct idle_tab_entry __RedBoot_IDLE_TAB__[], __RedBoot_IDLE_TAB_END__;
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125
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126 #ifdef HAL_ARCH_PROGRAM_NEW_STACK
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127 extern void HAL_ARCH_PROGRAM_NEW_STACK(void *fun);
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128 #endif
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129
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130 void
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131 do_version(int argc, char *argv[])
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132 {
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133 extern char RedBoot_version[];
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134 printf(RedBoot_version);
138
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135 #ifdef HAL_PLATFORM_CPU
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136 printf("Platform: %s (%s) %s\n", HAL_PLATFORM_BOARD, HAL_PLATFORM_CPU, HAL_PLATFORM_EXTRA);
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137 #endif
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138 printf("Copyright (C) 2000, 2001, Red Hat, Inc.\n\n");
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139 printf("RAM: %p-%p, %p-%p available\n",
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140 (void*)ram_start, (void*)ram_end,
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141 (void*)user_ram_start, (void *)user_ram_end);
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142 }
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143
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144 void
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145 do_idle(bool is_idle)
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146 {
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147 struct idle_tab_entry *idle_entry;
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148
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149 for (idle_entry = __RedBoot_IDLE_TAB__;
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150 idle_entry != &__RedBoot_IDLE_TAB_END__; idle_entry++) {
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151 (*idle_entry->fun)(is_idle);
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152 }
138
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153 }
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154
115
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155 //
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156 // This is the main entry point for RedBoot
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157 //
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158 void
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159 cyg_start(void)
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160 {
143
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161 int res = 0;
115
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162 bool prompt = true;
143
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163 static char line[CYGPKG_REDBOOT_MAX_CMD_LINE];
115
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164 struct cmd *cmd;
156
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165 int cur;
126
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166 struct init_tab_entry *init_entry;
156
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167
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168 // Make sure the channels are properly initialized.
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169 hal_if_diag_init();
115
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170
156
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171 // Force console to output raw text - but remember the old setting
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172 // so it can be restored if interaction with a debugger is
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173 // required.
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174 cur = CYGACC_CALL_IF_SET_CONSOLE_COMM(CYGNUM_CALL_IF_SET_COMM_ID_QUERY_CURRENT);
151
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175 CYGACC_CALL_IF_SET_CONSOLE_COMM(CYGNUM_HAL_VIRTUAL_VECTOR_DEBUG_CHANNEL);
115
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176 #ifdef CYGPKG_REDBOOT_ANY_CONSOLE
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177 console_selected = false;
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178 #endif
128
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179 console_echo = true;
159
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180 CYGACC_CALL_IF_DELAY_US((cyg_int32)2*100000);
115
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181
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182 ram_start = (unsigned char *)CYGMEM_REGION_ram;
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183 ram_end = (unsigned char *)(CYGMEM_REGION_ram+CYGMEM_REGION_ram_SIZE);
150
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184 #ifdef HAL_MEM_REAL_REGION_TOP
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185 {
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186 unsigned char *ram_end_tmp = ram_end;
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187 ram_end = HAL_MEM_REAL_REGION_TOP( ram_end_tmp );
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188 }
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189 #endif
156
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190 #ifdef CYGMEM_SECTION_heap1
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191 workspace_start = (unsigned char *)CYGMEM_SECTION_heap1;
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192 workspace_end = (unsigned char *)(CYGMEM_SECTION_heap1+CYGMEM_SECTION_heap1_SIZE);
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193 workspace_size = CYGMEM_SECTION_heap1_SIZE;
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194 #else
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195 workspace_start = (unsigned char *)CYGMEM_REGION_ram;
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196 workspace_end = (unsigned char *)(CYGMEM_REGION_ram+CYGMEM_REGION_ram_SIZE);
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197 workspace_size = CYGMEM_REGION_ram_SIZE;
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198 #endif
115
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199
158
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200 if ( ram_end < workspace_end ) {
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201 // when *less* SDRAM is installed than the possible maximum,
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202 // but the heap1 region remains greater...
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203 workspace_end = ram_end;
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204 workspace_size = workspace_end - workspace_start;
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205 }
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206
132
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207 bist();
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208
126
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209 for (init_entry = __RedBoot_INIT_TAB__; init_entry != &__RedBoot_INIT_TAB_END__; init_entry++) {
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210 (*init_entry->fun)();
115
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211 }
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212
156
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213 #ifdef CYGPKG_COMPRESS_ZLIB
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214 #define ZLIB_COMPRESSION_OVERHEAD 0xB400
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215 #else
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216 #define ZLIB_COMPRESSION_OVERHEAD 0
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217 #endif
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218 user_ram_start = workspace_start + ZLIB_COMPRESSION_OVERHEAD;
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219 user_ram_end = workspace_end;
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220 do_version(0,0);
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221
159
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222 #ifdef CYGFUN_REDBOOT_BOOT_SCRIPT
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223 # ifdef CYGDAT_REDBOOT_DEFAULT_BOOT_SCRIPT
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224 if (!script) {
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225 script = CYGDAT_REDBOOT_DEFAULT_BOOT_SCRIPT;
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226 # ifndef CYGSEM_REDBOOT_FLASH_CONFIG
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227 script_timeout = CYGNUM_REDBOOT_BOOT_SCRIPT_DEFAULT_TIMEOUT;
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228 # endif
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229 }
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230 # endif
115
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231 if (script) {
159
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232 // Give the guy a chance to abort any boot script
115
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233 unsigned char *hold_script = script;
159
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234 int script_timeout_ms = script_timeout * CYGNUM_REDBOOT_BOOT_SCRIPT_TIMEOUT_RESOLUTION;
130
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235 printf("== Executing boot script in %d.%03d seconds - enter ^C to abort\n",
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236 script_timeout_ms/1000, script_timeout_ms%1000);
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237 script = (unsigned char *)0;
156
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238 res = _GETS_CTRLC; // Treat 0 timeout as ^C
151
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239 while (script_timeout_ms >= CYGNUM_REDBOOT_CLI_IDLE_TIMEOUT) {
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240 res = gets(line, sizeof(line), CYGNUM_REDBOOT_CLI_IDLE_TIMEOUT);
158
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241 if (res >= _GETS_OK) {
143
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242 printf("== Executing boot script in %d.%03d seconds - enter ^C to abort\n",
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243 script_timeout_ms/1000, script_timeout_ms%1000);
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244 continue; // Ignore anything but ^C
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245 }
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246 if (res != _GETS_TIMEOUT) break;
151
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247 script_timeout_ms -= CYGNUM_REDBOOT_CLI_IDLE_TIMEOUT;
143
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248 }
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249 if (res == _GETS_CTRLC) {
115
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250 script = (unsigned char *)0; // Disable script
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251 } else {
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252 script = hold_script; // Re-enable script
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253 }
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254 }
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255 #endif
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256
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257 while (true) {
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258 if (prompt) {
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259 printf("RedBoot> ");
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260 prompt = false;
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261 }
151
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262 res = gets(line, sizeof(line), CYGNUM_REDBOOT_CLI_IDLE_TIMEOUT);
143
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263 if (res == _GETS_TIMEOUT) {
115
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264 // No input arrived
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265 } else {
143
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266 if (res == _GETS_GDB) {
156
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267 int dbgchan;
115
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268 // Special case of '$' - need to start GDB protocol
151
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269 gdb_active = true;
115
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270 CYGACC_CALL_IF_SET_CONSOLE_COMM(cur);
141
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271 #ifdef HAL_ARCH_PROGRAM_NEW_STACK
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272 HAL_ARCH_PROGRAM_NEW_STACK(breakpoint);
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273 #else
115
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274 breakpoint(); // Get GDB stubs started, with a proper environment, etc.
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275 #endif
156
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276 dbgchan = CYGACC_CALL_IF_SET_DEBUG_COMM(CYGNUM_CALL_IF_SET_COMM_ID_QUERY_CURRENT);
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277 CYGACC_CALL_IF_SET_CONSOLE_COMM(dbgchan);
115
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278 } else {
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279 if (strlen(line) > 0) {
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280 if ((cmd = parse(line, &argc, &argv[0])) != (struct cmd *)0) {
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281 (cmd->fun)(argc, argv);
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282 } else {
143
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283 printf("** Error: Illegal command: \"%s\"\n", argv[0]);
115
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284 }
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285 }
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286 prompt = true;
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287 }
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288 }
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289 }
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290 }
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291
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292 void
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293 do_caches(int argc, char *argv[])
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294 {
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295 unsigned long oldints;
159
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296 int dcache_on, icache_on;
151
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297
115
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298 if (argc == 2) {
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299 if (strcmpci(argv[1], "on") == 0) {
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300 HAL_DISABLE_INTERRUPTS(oldints);
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301 HAL_ICACHE_ENABLE();
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302 HAL_DCACHE_ENABLE();
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303 HAL_RESTORE_INTERRUPTS(oldints);
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304 } else if (strcmpci(argv[1], "off") == 0) {
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305 HAL_DISABLE_INTERRUPTS(oldints);
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306 HAL_DCACHE_SYNC();
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307 HAL_ICACHE_DISABLE();
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308 HAL_DCACHE_DISABLE();
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309 HAL_DCACHE_SYNC();
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310 HAL_ICACHE_INVALIDATE_ALL();
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311 HAL_DCACHE_INVALIDATE_ALL();
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312 HAL_RESTORE_INTERRUPTS(oldints);
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313 } else {
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314 printf("Invalid cache mode: %s\n", argv[1]);
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315 }
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316 } else {
159
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317 HAL_DCACHE_IS_ENABLED(dcache_on);
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318 HAL_ICACHE_IS_ENABLED(icache_on);
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319 printf("Data cache: %s, Instruction cache: %s\n", dcache_on?"On":"Off", icache_on?"On":"Off");
115
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320 }
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321 }
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322
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323
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324 void
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325 do_help(int argc, char *argv[])
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326 {
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327 struct cmd *cmd;
151
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328 char *which = (char *)0;
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329 bool show;
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330 int len = 0;
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331
151
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332 if (!scan_opts(argc, argv, 1, 0, 0, (void **)&which, OPTION_ARG_TYPE_STR, "<topic>")) {
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333 printf("Invalid argument\n");
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334 return;
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335 }
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336 if (which) {
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337 len = strlen(which);
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338 }
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339 cmd = __RedBoot_CMD_TAB__;
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340 while (cmd != &__RedBoot_CMD_TAB_END__) {
151
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341 show = true;
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342 if (which && (strncmpci(which, cmd->str, len) != 0)) {
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343 show = false;
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344 }
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345 if (show) {
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346 printf("%s\n %s %s\n", cmd->help, cmd->str, cmd->usage);
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347 }
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348 cmd++;
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349 }
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350 return;
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351 }
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352
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353 void
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354 do_dump(int argc, char *argv[])
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355 {
130
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356 struct option_info opts[2];
115
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357 unsigned long base, len;
130
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358 bool base_set, len_set;
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359
130
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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");
159
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364 if (!scan_opts(argc, argv, 1, opts, 2, 0, 0, "")) {
130
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365 return;
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366 }
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367 if (!base_set) {
115
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368 printf("Dump what [location]?\n");
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369 return;
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370 }
130
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371 if (!len_set) {
115
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372 len = 32;
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373 }
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374 dump_buf((void *)base, len);
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375 }
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376
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377 void
156
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378 do_cksum(int argc, char *argv[])
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379 {
158
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380 // Compute a CRC, using the POSIX 1003 definition
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381 extern unsigned long
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382 posix_crc32(unsigned char *s, int len);
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383
156
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384 struct option_info opts[2];
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385 unsigned long base, len, crc;
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386 bool base_set, len_set;
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387
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388 init_opts(&opts[0], 'b', true, OPTION_ARG_TYPE_NUM,
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389 (void **)&base, (bool *)&base_set, "base address");
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390 init_opts(&opts[1], 'l', true, OPTION_ARG_TYPE_NUM,
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391 (void **)&len, (bool *)&len_set, "length");
159
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392 if (!scan_opts(argc, argv, 1, opts, 2, 0, 0, "")) {
156
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393 return;
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394 }
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395 if (!base_set || !len_set) {
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396 printf("usage: cksum -b <addr> -l <length>\n");
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397 return;
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398 }
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399 crc = posix_crc32((unsigned char *)base, len);
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400 printf("POSIX cksum = 0x%08lx (%lu)\n", crc, crc);
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401 }
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402
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403 void
115
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404 do_go(int argc, char *argv[])
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405 {
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406 typedef void code_fun(void);
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407 unsigned long entry;
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408 unsigned long oldints;
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409 code_fun *fun;
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410 bool wait_time_set;
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411 int wait_time, res;
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412 struct option_info opts[1];
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413 char line[8];
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414
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415 entry = (unsigned long)entry_address; // Default from last 'load' operation
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416 init_opts(&opts[0], 'w', true, OPTION_ARG_TYPE_NUM,
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417 (void **)&wait_time, (bool *)&wait_time_set, "wait timeout");
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418 if (!scan_opts(argc, argv, 1, opts, 1, (void *)&entry, OPTION_ARG_TYPE_NUM, "starting address"))
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419 {
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420 return;
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421 }
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422 if (wait_time_set) {
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423 int script_timeout_ms = wait_time * 1000;
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424 #ifdef CYGSEM_REDBOOT_FLASH_CONFIG
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425 unsigned char *hold_script = script;
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426 script = (unsigned char *)0;
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427 #endif
115
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428 printf("About to start execution at %p - abort with ^C within %d seconds\n",
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429 (void *)entry, wait_time);
156
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430 while (script_timeout_ms >= CYGNUM_REDBOOT_CLI_IDLE_TIMEOUT) {
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431 res = gets(line, sizeof(line), CYGNUM_REDBOOT_CLI_IDLE_TIMEOUT);
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432 if (res == _GETS_CTRLC) {
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433 #ifdef CYGSEM_REDBOOT_FLASH_CONFIG
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434 script = hold_script; // Re-enable script
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435 #endif
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436 return;
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437 }
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438 script_timeout_ms -= CYGNUM_REDBOOT_CLI_IDLE_TIMEOUT;
115
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439 }
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440 }
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441 fun = (code_fun *)entry;
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442 HAL_DISABLE_INTERRUPTS(oldints);
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443 HAL_DCACHE_SYNC();
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444 HAL_ICACHE_DISABLE();
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445 HAL_DCACHE_DISABLE();
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446 HAL_DCACHE_SYNC();
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447 HAL_ICACHE_INVALIDATE_ALL();
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448 HAL_DCACHE_INVALIDATE_ALL();
141
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449 #ifdef HAL_ARCH_PROGRAM_NEW_STACK
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450 HAL_ARCH_PROGRAM_NEW_STACK(fun);
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451 #else
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452 (*fun)();
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453 #endif
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454 }
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455
151
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456 #ifdef HAL_PLATFORM_RESET
143
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457 void
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458 do_reset(int argc, char *argv[])
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459 {
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460 printf("... Resetting.");
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461 CYGACC_CALL_IF_DELAY_US(2*100000);
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462 printf("\n");
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463 CYGACC_CALL_IF_DELAY_US(50000);
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464 HAL_PLATFORM_RESET();
143
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465 printf("!! oops, RESET not working on this platform\n");
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466 }
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467 #endif
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468
159
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469 #ifdef CYGSEM_REDBOOT_VARIBLE_BAUD_RATE
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470
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471 void
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472 set_console_baud_rate(int rate)
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473 {
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474 hal_virtual_comm_table_t *__chan;
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475 int ret;
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476
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477 if (rate != CYGNUM_HAL_VIRTUAL_VECTOR_CONSOLE_CHANNEL_BAUD) {
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478 CYGACC_CALL_IF_SET_CONSOLE_COMM(CYGNUM_CALL_IF_SET_COMM_ID_QUERY_CURRENT);
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479 __chan = CYGACC_CALL_IF_CONSOLE_PROCS();
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480 ret = CYGACC_COMM_IF_CONTROL(*__chan, __COMMCTL_SETBAUD, rate);
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481 if (ret <= 0) {
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482 printf("Failed\n");
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483 }
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484 }
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485 }
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486
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487 void
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488 do_baud_rate(int argc, char *argv[])
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489 {
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490 int new_rate, ret;
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491 bool new_rate_set;
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492 hal_virtual_comm_table_t *__chan;
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493 struct option_info opts[1];
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494
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495 init_opts(&opts[0], 'b', true, OPTION_ARG_TYPE_NUM,
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496 (void **)&new_rate, (bool *)&new_rate_set, "new baud rate");
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497 if (!scan_opts(argc, argv, 1, opts, 1, 0, 0, "")) {
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498 return;
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499 }
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500 CYGACC_CALL_IF_SET_CONSOLE_COMM(CYGNUM_CALL_IF_SET_COMM_ID_QUERY_CURRENT);
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501 __chan = CYGACC_CALL_IF_CONSOLE_PROCS();
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502 if (new_rate_set) {
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503 set_console_baud_rate(new_rate);
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504 } else {
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505 ret = CYGACC_COMM_IF_CONTROL(*__chan, __COMMCTL_GETBAUD);
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506 printf("Baud rate = ");
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507 if (ret <= 0) {
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508 printf("unknown\n");
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509 } else {
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510 printf("%d\n", ret);
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511 }
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512 }
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513 }
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514 #endif
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515
132
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516 //
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517 // [Null] Builtin [Power On] Self Test
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518 //
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519 void bist(void) CYGBLD_ATTRIB_WEAK;
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520
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521 void
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522 bist(void)
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523 {
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524 }