FreeCalypso > hg > freecalypso-tools

annotate loadtools/flashid.c @ 509:49ee210fc4fb

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loadtools/scripts/*.config: new flash config
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 28 May 2019 07:42:39 +0000
parents c942be3c7997
children 0212edcec4d2
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1 /*
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2 * Flash device detection code lives here
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3 */
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4
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5 #include <sys/types.h>
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6 #include <stdio.h>
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7 #include <stdint.h>
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8 #include <stdlib.h>
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9 #include "flash.h"
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10
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11 extern struct flash_device flashdev_28F160C3T;
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12 extern struct flash_device flashdev_28F320C3T;
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13 extern struct flash_device flashdev_28F640C3T;
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14 extern struct flash_device flashdev_28F640C3B;
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15 extern struct flash_device flashdev_28F640W30T;
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16 extern struct flash_device flashdev_28F640W30B;
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17 extern struct flash_device flashdev_PL129J;
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18 extern struct flash_device flashdev_PL129N;
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19 extern struct flash_device flashdev_K5A32xx_T;
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20
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21 extern int flash_global_config;
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22 extern struct flash_bank_info flash_bank_info[2];
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23
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24 static
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25 run_cfi_check(bi, table)
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26 struct flash_bank_info *bi;
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27 struct cfi_check *table;
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28 {
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29 struct cfi_check *tp;
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30 uint16_t rdword;
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31
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32 for (tp = table; tp->offset >= 0; tp++) {
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33 if (do_r16(bi->base_addr + (tp->offset << 1), &rdword) < 0)
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34 return(-1);
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35 if (rdword != tp->expect_val)
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36 return(0);
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37 }
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38 return(1);
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39 }
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40
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41 static
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42 try_device(bi, dev)
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43 struct flash_bank_info *bi;
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44 struct flash_device *dev;
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45 {
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46 int rc;
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47
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48 printf("Appears to be %s or compatible, checking CFI\n", dev->name);
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49 if (do_w16(bi->base_addr + 0xAA, 0x98)) {
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50 fprintf(stderr, "unexpected response to w16 - aborting\n");
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51 return(-1);
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52 }
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53 rc = run_cfi_check(bi, dev->cfi_table);
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54 if (rc < 0)
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55 return(rc);
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56 if (!rc) {
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57 fprintf(stderr, "Error: CFI mismatch, unsafe to continue\n");
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58 return(-1);
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59 }
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60 printf("Confirmed %s or compatible\n", dev->name);
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61 bi->device = dev;
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62 return(0);
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63 }
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64
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65 static
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66 spansion_pl129j_or_n(bi)
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67 struct flash_bank_info *bi;
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68 {
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69 int rc;
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70
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71 printf("Spansion PL129J or PL129N, looking at CFI\n");
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72 /* need to go back to read array first, CFI cmd ignored otherwise */
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73 if (do_w16(bi->base_addr + 0xAAA, 0xF0)) {
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74 bad_w16: fprintf(stderr, "unexpected response to w16 - aborting\n");
506
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75 return(-1);
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76 }
507
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77 if (do_w16(bi->base_addr + 0xAAA, 0x98))
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78 goto bad_w16;
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79 rc = run_cfi_check(bi, flashdev_PL129N.cfi_table);
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80 if (rc < 0)
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81 return(rc);
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82 if (rc) {
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83 printf("Found PL129N\n");
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84 bi->device = &flashdev_PL129N;
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85 return(0);
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86 }
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87 rc = run_cfi_check(bi, flashdev_PL129J.cfi_table);
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88 if (rc < 0)
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89 return(rc);
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90 if (rc) {
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91 printf("Found PL129J\n");
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92 bi->device = &flashdev_PL129J;
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93 return(0);
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94 }
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95 fprintf(stderr, "Error: no matching CFI found\n");
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96 return(-1);
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97 }
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98
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99 static
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100 amd_extended_id(bi)
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101 struct flash_bank_info *bi;
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102 {
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103 uint16_t ext1, ext2;
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104
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105 printf("AMD-style extended ID device, reading extended ID\n");
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106 if (do_r16(bi->base_addr + 0x1C, &ext1) < 0)
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107 return(-1);
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108 if (do_r16(bi->base_addr + 0x1E, &ext2) < 0)
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109 return(-1);
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110 printf("Extended ID: %04X %04X\n", ext1, ext2);
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111 if (ext1 == 0x2221 && ext2 == 0x2200)
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112 return spansion_pl129j_or_n(bi);
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113 fprintf(stderr, "Error: unknown device ID\n");
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114 return(-1);
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115 }
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116
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117 static struct idmap {
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118 uint16_t manuf_id;
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119 uint16_t dev_id;
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120 int (*handler)();
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121 void *extra_arg;
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122 } device_id_table[] = {
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123 /* AMD/Spansion devices */
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124 {0x0001, 0x227E, amd_extended_id, 0},
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125 /* 28F160C3T equivalent found in a C11x phone in the wild */
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126 {0x0020, 0x88CE, try_device, &flashdev_28F160C3T},
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127 /* Intel flash chips */
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128 {0x0089, 0x8854, try_device, &flashdev_28F640W30T},
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129 {0x0089, 0x8855, try_device, &flashdev_28F640W30B},
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130 {0x0089, 0x8864, try_device, &flashdev_28F640W30T},
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131 {0x0089, 0x88C2, try_device, &flashdev_28F160C3T},
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132 {0x0089, 0x88C4, try_device, &flashdev_28F320C3T},
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133 {0x0089, 0x88CC, try_device, &flashdev_28F640C3T},
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134 {0x0089, 0x88CD, try_device, &flashdev_28F640C3B},
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135 /* Samsung flash */
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136 {0x00EC, 0x22A0, try_device, &flashdev_K5A32xx_T},
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137 /* table search terminator */
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138 {0, 0, 0, 0}
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139 };
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140
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141 flash_detect(bank, repeat)
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142 {
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143 struct flash_bank_info *bi;
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144 uint16_t manuf_id, dev_id;
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145 struct idmap *tp;
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146 int rc;
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147
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148 bi = flash_bank_info + bank;
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149 if (bi->detect_done && !repeat)
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150 return(0);
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151 printf("Autodetecting flash chip type\n");
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152 if (do_w16(bi->base_addr + 0xAAA, 0xAA)) {
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153 bad_w16: fprintf(stderr,
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154 "unexpected response to w16 in read ID cmd sequence - aborting\n");
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155 return(-1);
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156 }
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157 if (do_w16(bi->base_addr + 0x554, 0x55))
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158 goto bad_w16;
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159 if (do_w16(bi->base_addr + 0xAAA, 0x90))
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160 goto bad_w16;
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161 if (do_r16(bi->base_addr, &manuf_id) < 0)
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162 return(-1);
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163 if (do_r16(bi->base_addr + 2, &dev_id) < 0)
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164 return(-1);
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165 printf("Basic device ID: %04X %04X\n", manuf_id, dev_id);
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166 for (tp = device_id_table; tp->handler; tp++)
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167 if (tp->manuf_id == manuf_id && tp->dev_id == dev_id)
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168 break;
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169 if (!tp->handler) {
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170 fprintf(stderr, "Error: unknown device ID\n");
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171 return(-1);
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parents:
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172 }
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173 rc = tp->handler(bi, tp->extra_arg);
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parents:
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174 if (rc < 0)
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parents:
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175 return(rc);
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176 /* got the device, see if it is compatible with global config */
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parents:
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177 if (bi->device->required_global_config > flash_global_config) {
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parents:
diff changeset
178 fprintf(stderr,
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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179 "Error: detected flash device is not compatible with the configured mapping\n");
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parents:
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180 return(-1);
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parents:
diff changeset
181 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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182 /* good to go */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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183 if (bi->device->bank_geom[1] && bank)
0dd2c87c1b63 fc-loadtool flash support overhaul
Mychaela Falconia <falcon@freecalypso.org>
parents:
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184 bi->geom = bi->device->bank_geom[1];
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parents:
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185 else
0dd2c87c1b63 fc-loadtool flash support overhaul
Mychaela Falconia <falcon@freecalypso.org>
parents:
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186 bi->geom = bi->device->bank_geom[0];
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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187 bi->ops = bi->device->cmdset;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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188 bi->detect_done = 1;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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189 /* return device to read array mode */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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190 return bi->ops->reset_cmd(bi);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
191 }