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annotate doc/Loadtools-usage @ 505:7bf0d909c87e

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fc-loadtool flash ID check: change of reset after the check logic This change only affects those flash configurations that have ID checks enabled. The logic for resetting the flash after the ID check has been changed as follows: 1) If the check fails, we return without attempting to reset the flash. 2) If the check is successful, we reset the flash using the configured method (could be AMD or Intel or Intel W30) instead of always doing an AMD flash reset as the original code did.
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 27 May 2019 19:58:01 +0000
parents 09b47223ee1b
children 5f66dd6e676b
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 The loadtools subset of FreeCalypso host tools consists of:
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2
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3 fc-loadtool The tool for operating on Calypso GSM devices at a low
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4 level. After "breaking" into the target GSM device in
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5 its boot process and getting FreeCalypso loadagent
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6 running on the target (out of Calypso internal RAM, aka
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7 IRAM), loadtool presents an interactive command prompt
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8 with commands for peeking and poking registers and most
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9 importantly, reading and writing any part of the
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10 device's non-volatile flash memory.
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11
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12 fc-iram & fc-xram These utilities are intended for FreeCalypso developers
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13 only. They load an S-record code image into IRAM or
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14 XRAM, respectively, induce a transfer of control to the
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15 loaded code, and then drop into a serial line pass-thru
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16 mode for the operator to interact with the thus loaded
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17 target code.
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18
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19 The currently supported target devices are (in the order of decreasing
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20 preference) official Calypso development boards (TI's D-Sample and our own
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21 FCDEV3B), Openmoko's GTA0x GSM modem, and two "alien" Calypso phone families:
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22 Motorola C1xx and Sony Ericsson J100 by Compal and Pirelli DP-L10 by Foxconn.
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23
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24 All tools in the FreeCalypso loadtools suite work by feeding pieces of code to
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25 the target device as it boots, preventing the booting of its regular firmware
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26 and diverting control to these externally-loaded code pieces. These pieces of
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27 ARM7 target code need to be installed on the host system running loadtools,
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28 normally in /opt/freecalypso/target-bin:
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29
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30 loadagent This is the "agent" code that runs on the target device when
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31 fc-loadtool is operating on it: loadtool carries out its
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32 operations by sending commands to loadagent. There is only one
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33 version of loadagent for all currently supported Calypso
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34 targets: loadagent does not access any resources outside of the
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35 Calypso chip itself unless commanded to do so, and loadtool
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36 supports different target devices with different hardware
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37 configurations by sending different commands to loadagent as
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38 appropriate.
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39
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40 compalstage For Compal phones only: a little piece of code that is fed to
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41 the original fw's bootloader via the serial download protocol
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42 provided by the latter; it re-enables the Calypso chip boot ROM
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43 and jumps to it, allowing our loadagent to be loaded in the
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44 same way as on freedom-enabled devices.
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45
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46 If you are working with a development snapshot of the freecalypso-tools source
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47 tree, you will need to compile and install a GNU cross-compiler toolchain
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48 targeting ARM7 (see ../toolchain) and then use that toolchain to compile
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49 loadagent and compalstage (see ../target-utils) before you can successfully use
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50 loadtools to operate on a target device. End-user oriented releases of
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51 FreeCalypso host tools include prebuilt loadagent and compalstage binaries.
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52
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53 Basic usage
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54 ===========
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55
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56 The steps for bringing up fc-loadtool to operate on a target Calypso device are
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57 as follows:
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58
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59 1. If you are using a USB serial adapter, or operating on a Pirelli phone that
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60 has one built in, connect the USB side first so that the necessary
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61 /dev/ttyUSB* device node appears. If you are working with a target such as
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62 FCDEV3B or D-Sample on which both Calypso UARTs are equally accessible with
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63 equal convenience, you can arbitrarily pick either one for fc-loadtool - it
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64 will work exactly the same through either port.
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65
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66 2. Run fc-loadtool like this:
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67
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68 fc-loadtool $TARGETOPT /dev/ttyXXX
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69
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70 Change /dev/ttyXXX to the actual serial port you are using, and change
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71 $TARGETOPT to:
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72
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73 Device Needed options
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74 -----------------------------------
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75 FreeCalypso FCDEV3B -h fcfam
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76 Mot C11x/123 -h compal
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77 Mot C139/140 -h compal -c 1004
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78 Mot C155/156 -h c155
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79 Openmoko GTA02 -h gta02
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80 Pirelli DP-L10 -h pirelli
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81 Sony Ericsson J100 -h compal -c 1004
209
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82 TI D-Sample -h dsample
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83
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84 3. Cause the target device to execute its boot path. TI/Openmoko/FreeCalypso
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85 and Pirelli targets have the Calypso boot ROM enabled, and will interrupt
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86 and divert their normal boot path when they "hear" the beacons which
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87 fc-loadtool will be sending down the serial line. Compal phones have this
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88 boot ROM disabled at the board level, but their standard firmware includes a
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89 flash-resident bootloader that offers a different way of interrupting the
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90 boot path and loading code over the serial line; fc-loadtool will be set up
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91 to speak the latter protocol when run with the corresponding options from
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92 the table above.
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93
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94 You will see messages showing fc-loadtool's progress with feeding first
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95 compalstage (if needed), then loadagent (always needed) to the target device,
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96 followed by some target-specific initialization done via loadagent commands.
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97 If all of the above succeeds, you will land at a loadtool> prompt. Type
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98 'help', and it will guide you from there. Alternatively, you can familiarize
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99 yourself with loadtool commands and operations without actually running it by
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100 reading the loadtool.help text file.
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101
236
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102 fc-loadtool batch mode
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103 ======================
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104
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105 In addition to the interactive mode described above, fc-loadtool can be used in
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106 a scripted or batch mode where it makes contact with the target device as it
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107 boots, interrupts and diverts the boot process to loadagent, executes a given
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108 command script, cleans up the target state as appropriate (usually powers off)
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109 and exits. This mode is used by the FreeCalypso factory for initial flash
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110 programming on the device production line, but it can also be used by end users
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111 to install firmware updates in a more automated manner.
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112
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113 The batch mode is entered when there is a command script given on the
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114 fc-loadtool invokation command line.
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115
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116 Command line options
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117 ====================
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118
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119 The fc-loadtool command lines shown above will usually be sufficient. However,
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120 here is the complete command line description for all 3 tools:
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121
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122 fc-iram [options] ttyport iramimage.srec [2ndprog]
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123 fc-xram [options] ttyport xramimage.srec [2ndprog]
236
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124 fc-loadtool [options] ttyport [batch-script]
209
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125
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126 The available options are common for all 3 utilities, with a few noted
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127 exceptions:
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128
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129 -a /path/to/loadagent
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130
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131 This option applies only to fc-loadtool and fc-xram. It specifies the
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132 pathname at which the required loadagent.srec image should be sought,
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133 overriding the compiled-in default.
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134
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135 -b baud
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136
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137 This option is common for all 3 utilities. It selects the baud rate
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138 to be used when pushing the IRAM image to the Calypso boot ROM. In the
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139 case of fc-iram, the selected baud rate will be in effect when the
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140 loaded IRAM image is jumped to and fc-iram drops into the serial tty
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141 pass-thru mode; in the case of fc-loadtool, it will be the initial baud
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142 rate for communicating with loadagent, which can be switched later with
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143 the baud command. The default is 115200 baud.
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144
236
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145 -B baud (fc-loadtool)
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146
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147 This option is specific to the batch mode of fc-loadtool, and has no
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148 effect when no batch mode command script is specified on the command
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149 line. In the batch mode this option commands a baud rate switch to be
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150 performed before the command script is executed.
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151
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152 -B baud (fc-xram)
209
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153
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154 This option is specific to fc-xram. It selects the baud rate to be
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155 used when pushing the XRAM image to loadagent. If no -B option is
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156 specified, fc-xram will communicate with loadagent at the same baud
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157 rate that was used to load loadagent itself via the Calypso boot ROM
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158 download protocol, i.e., the rate selected with -b, defaulting to
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159 115200 baud if no -b option was given either. Neither -b nor -B
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160 affects the baud rate that will be in effect when the loaded XRAM image
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161 is jumped to and fc-xram drops into the serial tty pass-thru mode: that
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162 baud rate independently defaults to 115200 baud and can only be changed
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163 with the -r option.
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164
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165 -c <compalstage flavor>
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166
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167 This option is common for all 3 utilities. It directs the tools to
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168 perform the Compal loading stage before proceeding with the Calypso
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169 boot ROM serial protocol, and selects the "flavor" of compalstage to
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170 use. As you can see in the source, compalstage is built in 3 different
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171 versions, for different C1xx models which exhibit different quirks.
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172
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173 This option overrides the compal-stage setting given in the hardware
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174 parameter file selected with -h or -H; the -c or -C option must be given
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175 after -h or -H in order to take effect. -c none disables the Compal
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176 stage and causes the tools to proceed directly to the Calypso boot ROM
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177 phase, even on targets for which the hardware parameter file specifies
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178 compal-stage.
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179
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180 -C /path/to/compalstage-binary
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181
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182 This option is just like -c, except that the given argument is used
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183 directly as the compalstage binary file pathname (absolute or relative)
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184 without checking or alteration.
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185
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186 -h hwtype
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187
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188 This option is common for all 3 utilities. It selects the specific
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189 target device configuration to be used. More precisely, it constructs
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190 a pathname of the form /opt/freecalypso/loadtools/%s.config, where %s
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191 is the argument given to this option, and uses that file as the hardware
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192 parameter file.
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193
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194 The hardware configurations known to the present release of FreeCalypso
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195 loadtools are listed in the "Basic usage" section above.
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196
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197 -H /path/to/hwparam-file
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198
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199 This option is just like -h, except that the given argument is used
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200 directly as the hardware parameter file pathname (absolute or relative)
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201 without alteration.
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202
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203 -i num
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204
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205 This option is common for all 3 utilities. It specifies the interval
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206 in milliseconds at which the tool will send "please interrupt the boot
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207 process" beacons out the serial port, hoping to catch the Calypso
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208 internal boot ROM. The default is 13 ms.
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209
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210 -n
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211
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212 This option does anything only when loadtools have been compiled to run
215
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diff changeset
213 on GTA0x AP (see the Loadtools-on-GTA0x article). If you've compiled
209
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214 loadtools with the -DGTA0x_AP_BUILD option, it has an effect of making
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215 each tool automatically toggle the modem power control upon startup,
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216 removing the need for manual sequencing of the Calypso boot process.
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217 This -n option suppresses that action, making the AP build behave like
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218 the standard build in this regard.
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219
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220 -r baud (fc-loadtool)
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221
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222 This option is specific to fc-loadtool. It causes the tool to skip its
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223 normal steps of feeding loadagent and possibly compalstage to the target
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224 via special serial protocols, and instead assume that the target is
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225 already running loadagent, communicating at the specified baud rate.
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226 In other words, reattach to an already running loadagent. Use this
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227 option if your fc-loadtool session has been terminated ungracefully and
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228 you would like to reattach and resume, rather than forcibly reset the
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229 target by yanking and reinserting the battery and restart from the
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230 beginning.
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231
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232 -r baud (fc-xram)
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233
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234 This option is specific to fc-xram. It selects the serial line baud
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235 rate which should be set just before the loaded XRAM image is jumped
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236 to; the default is 115200 baud.
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237
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238 fc-iram & fc-xram 2nd program invokation
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239 ========================================
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240
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241 Our fc-iram and fc-xram utilities can take two possible actions after they have
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242 loaded the specified S-record image into RAM:
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243
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244 * The default action, in the absence of additional command line arguments, is
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245 to drop into a serial tty pass-thru mode.
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246
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247 * The alternative action is to invoke a 2nd program and pass the serial
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248 communication channel to it. This 2nd program invokation facility is intended
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249 primarily for passing the serial communication channel to rvinterf or rvtdump
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250 from the FreeCalypso host tools suite, not for launching any arbitrary
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251 3rd-party programs from fc-xram or fc-iram.
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252
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253 This feature was originally implemented in fc-xram only, and the intended usage
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254 scenario is that one builds a version of one of our FreeCalypso GSM firmwares
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255 (or some subset thereof, such as an "in vivo" FFS editing agent) in the ramImage
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256 configuration, fc-xram is used to load that ramImage into the target device,
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257 and then the serial communication channel (RVTMUX) is immediately taken over by
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258 rvinterf or rvtdump.
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259
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260 This second program invokation capability was later extended to fc-iram for no
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261 purpose other than to facilitate a boot hack that was only needed on one (1)
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262 defective FCDEV3B board - see the Flash-boot-wa article.