FreeCalypso > hg > freecalypso-tools
annotate doc/Loadtool-targets @ 658:0da2cf5a999c
target-utils: libload eliminated
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Tue, 03 Mar 2020 06:06:17 +0000 |
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children | 7b4c011fa798 |
rev | line source |
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1 Explanation of -h targets for fc-loadtool and friends |
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2 ===================================================== |
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3 |
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4 It is possible to run fc-loadtool without giving it any -h option at all - if |
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5 run in this manner, the tool will still gain access to the target Calypso device |
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6 via its boot ROM and allow some peeking and poking to be done, but it will run |
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7 with some major limitations: |
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8 |
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9 * No PLL multiplier will be set up, thus the Calypso ARM7 core will run at |
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10 13 MHz rather than the preferred faster frequency of 39 MHz for Calypso C05 |
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11 or 52 MHz for Calypso C035. |
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12 |
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13 * In the absence of a hardware parameter file specifying flash configuration, |
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14 all high-level flash operations (all commands beginning with flash) will be |
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15 disabled. One can still dump the flash manually using the low-level dump2bin |
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16 command (as opposed to flash dump2bin), but no other flash manipulations are |
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17 possible. |
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18 |
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19 * With most -h hardware parameter files the default exit mode is set to |
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20 exit iota-off, but without a hardware parameter file it will be exit bare |
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21 by default. |
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22 |
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23 fc-xram is not useful at all without -h: one cannot load anything into XRAM |
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24 until Calypso MEMIF is set up properly for XRAM access, and this setup is done |
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25 by the init scripts referenced from hardware parameter files. |
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26 |
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27 Available -h targets |
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28 ==================== |
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29 |
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30 -h compal and -h c155 |
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31 |
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32 -h compal needs to be used for all of "lower" Compal subfamilies |
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33 (everything other than Mot C155/156); -h c155 is self-explanatory. |
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34 Very special loadtools configuration is needed for Compal targets, |
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35 telling our tools to use a very different way of gaining entry through |
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36 Compal's bootloader and configuring the special flash erase-program-boot |
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37 hack. |
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38 |
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39 All following configurations are for more sane, meaning non-Compal targets: |
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40 |
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41 -h c05 and -h c035 |
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42 |
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43 These are the most generic configurations we have, indicating only the |
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44 use of Calypso C05 or C035, respectively, but no other knowledge about |
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45 target hardware. These minimal configs are not usable for flash |
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46 manipulation or for fc-xram, but they may be useful for fc-iram or |
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47 low-level (non-flash) fc-loadtool operations. |
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48 |
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49 -h c05i and -h c035i |
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50 |
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51 These two configurations are the next step up in target-specific |
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52 knowledge from the more basic c05 and c035: the present c05i and c035i |
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53 configs additionally indicate the use of a Iota ABB, telling our tools |
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54 to perform a Iota poweroff when we are done. They are still not usable |
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55 for flash manipulation or for fc-xram, but they are ideal for the |
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56 simpler and more specialized fc-buzplay and fc-dspromdump tools. |
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57 |
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58 -h gen4 and -h gen8 |
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59 |
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60 These two configs are our most generic fc-loadtool targets: they are |
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61 supersets of c035i (Calypso C035 and Iota ABB required), supporting |
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62 4 MiB or 8 MiB flash on Calypso nCS0, respectively. More precisely, |
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63 our gen4 config supports *up to* 4 MiB of flash, whereas gen8 supports |
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64 up to 8 MiB. In the vast majority of cases it is safe and thus easier |
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65 to use gen8; the more conservative gen4 config is only needed when you |
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66 DON'T want Calypso multifunction pin CS4/ADD22 to be switched from CS4 |
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67 to ADD22, either because you know for certain that the flash chip is |
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68 4 MiB or less or because you found a super-exotic board on which this |
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69 pin is actually used as CS4 - we have never seen one of the latter. |
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70 |
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71 These gen4 and gen8 configs set up Calypso MEMIF registers for nCS0 and |
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72 nCS1; the latter is assumed to be connected to XRAM and is set up for |
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73 fc-xram. MEMIF configuration registers are set up with WS=4 - please |
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74 refer to the MEMIF-wait-states article in the freecalypso-docs |
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75 repository. |
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76 |
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77 -h dsample |
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78 |
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79 The dsample target is special in two ways: |
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80 |
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81 * The PLL multiplier is set to 3 rather than 4, resulting in 39 MHz |
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82 ARM7 core clock instead of 52 MHz - this slowdown is needed because |
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83 early D-Sample boards have Calypso C05 chips on them. |
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84 |
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85 * Calypso MEMIF setup is done for nCS0 (flash), nCS1 (main XRAM) and |
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86 nCS2 (extra XRAM), making all of D-Sample XRAM available to fc-xram. |
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87 |
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88 For flash manipulation purposes this dsample target is no different |
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89 from gen8. |
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90 |
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91 -h fcfam |
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92 |
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93 The only special features of this configuration are: |
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94 |
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95 * Calypso MEMIF setup is done for nCS0, nCS1 and nCS2 like on D-Sample; |
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96 |
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97 * Flash support is configured to look for the second 8 MiB flash bank |
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98 on Calypso nCS2. |
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99 |
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100 This configuration is required for flash manipulation on boards like |
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101 our current FCDEV3B that have S71PL129N or S71PL129J flash chips with |
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102 the second flash chip select wired to Calypso nCS2. This config can be |
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103 considered a special superset of gen8: every target that works with |
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104 -h gen8 will also work with -h fcfam, but not the other way around. |
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105 |
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106 -h fic |
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107 |
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108 FIC's board wiring that has made its way into Openmoko GTA01 and GTA02 |
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109 PCBs and was also undoubtedly used on FIC's earlier pre-Openmoko phones |
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110 or modems allows for up to 16 MiB of flash (4 MiB, 8 MiB or 16 MiB |
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111 flash chips can be populated on the same PCB footprint) with the second |
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112 flash chip select wired to Calypso nCS4. |
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113 |
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114 This -h fic config supports all FIC Calypso devices with 4 MiB, 8 MiB |
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115 or 16 MiB flash, and like -h fcfam it can be considered a special |
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116 superset of gen4 and gen8, special for FIC's board wiring where the |
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117 potential 2nd flash chip select goes to nCS4. |
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118 |
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119 -h gta02 |
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120 |
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121 This narrowly specialized config is deprecated and will be removed in a |
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122 future release of FC host tools; please use the new generalized -h fic |
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123 config instead. |
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124 |
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125 -h leonardo |
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126 |
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127 This config is a Calypso C05 counterpart to -h fcfam, i.e., -h leonardo |
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128 differs from -h fcfam only in that the Calypso boot ROM is told to |
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129 program the PLL with a lower multiplier, running the PLL at 78 MHz |
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130 instead of 104 MHz, with the ARM7 core getting 39 MHz instead of 52 MHz. |
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131 This slowdown is needed because early Leonardo boards had Calypso C05 |
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132 chips on them. |
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133 |
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134 -h pirelli |
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135 |
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136 The Pirelli DP-L10 phone has had its own dedicated -h pirelli target |
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137 config since the beginning of FreeCalypso, and this special config is |
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138 still needed because these phones have 16 MiB flash chips (either |
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139 S71PL129J or S71PL129N) with the second flash chip select wired to |
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140 Calypso nCS3, a wiring arrangement original to this Pirelli DP-L10. |
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141 |
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142 -h w220 |
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143 |
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144 Motorola W220 (made by Chi-Mei, *not* a Compal target!) gets its own |
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145 special loadtools config because of its XRAM wiring: the XRAM bank sits |
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146 on Calypso nCS3 instead of the usual nCS1. |