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annotate doc/Loadtool-targets @ 1012:11391cb6bdc0

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patch from fixeria: doc change from SE K2x0 to K2xx Since their discovery in late 2022, Sony Ericsson K200 and K220 phones were collectively referred to as SE K2x0 in FreeCalypso documentation. However, now that SE K205 has been discovered as yet another member of the same family (same PCBA in different case), it makes more sense to refer to the whole family as SE K2xx.
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 23 Sep 2024 12:23:20 +0000
parents d15d337ac0a9
children
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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 leonardo
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120
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121 This config is a Calypso C05 counterpart to -h fcfam, i.e., -h leonardo
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122 differs from -h fcfam only in that the Calypso boot ROM is told to
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123 program the PLL with a lower multiplier, running the PLL at 78 MHz
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124 instead of 104 MHz, with the ARM7 core getting 39 MHz instead of 52 MHz.
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125 This slowdown is needed because early Leonardo boards had Calypso C05
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126 chips on them.
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127
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128 -h pirelli
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129
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130 The Pirelli DP-L10 phone has had its own dedicated -h pirelli target
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131 config since the beginning of FreeCalypso, and this special config is
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132 still needed because these phones have 16 MiB flash chips (either
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Mychaela Falconia <falcon@freecalypso.org>
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133 S71PL129J or S71PL129N) with the second flash chip select wired to
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Mychaela Falconia <falcon@freecalypso.org>
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134 Calypso nCS3, a wiring arrangement original to this Pirelli DP-L10.
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135
1003
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136 -h chimei
568
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137
1003
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138 This target is needed for Chi-Mei phones: Motorola W220, Sony Ericsson
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139 J120 and likely others yet to be discovered. A special loadtools config
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parents: 568
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140 is needed because of XRAM wiring on these phones: the XRAM bank sits on
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parents: 568
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141 Calypso nCS3 instead of the usual nCS1.