1 | /* Trivial Flash Programmer */ |
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2 | |
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3 | /* Author: Till Straumann <strauman@slac.stanford.edu>, 2006 */ |
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4 | |
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5 | /* To keep things simple, this driver makes a few assumptions about the |
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6 | * hardware: |
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7 | * |
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8 | * - no CFI |
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9 | * - devices operate with 16-bit data width |
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10 | * - two devices are used in parallel (stride 4) to |
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11 | * provide 32-bit data. I.e., the devices are |
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12 | * organized like this: |
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13 | * unsigned short flash[FLASH_SIZE][2]; |
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14 | * - no endianness issues (i.e., flash endianness == CPU endianness) |
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15 | * - fixed block size |
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16 | * - fixed buffer size |
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17 | * - all devices in a bank are identical |
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18 | * - NOT THREAD SAFE; no locking scheme is implemented. |
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19 | * - cannot copy within same flash bank. |
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20 | * - timeout uses polling/busy-wait. |
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21 | * |
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22 | * NOTE: some attempts have been made to remove the restrictions |
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23 | * on stride and 16-bit width with the goal to support widths 1/2 (bytes) |
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24 | * and strides 1/2/4 and all (legal) combinations thereof. |
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25 | * However, the intel chip driver only implements stride 4 / width 2 |
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26 | * and other combinations are untested. |
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27 | */ |
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28 | |
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29 | /* |
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30 | * Authorship |
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31 | * ---------- |
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32 | * This software was created by |
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33 | * Till Straumann <strauman@slac.stanford.edu>, 2005-2007, |
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34 | * Stanford Linear Accelerator Center, Stanford University. |
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35 | * |
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36 | * Acknowledgement of sponsorship |
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37 | * ------------------------------ |
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38 | * The software was produced by |
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39 | * the Stanford Linear Accelerator Center, Stanford University, |
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40 | * under Contract DE-AC03-76SFO0515 with the Department of Energy. |
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41 | * |
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42 | * Government disclaimer of liability |
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43 | * ---------------------------------- |
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44 | * Neither the United States nor the United States Department of Energy, |
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45 | * nor any of their employees, makes any warranty, express or implied, or |
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46 | * assumes any legal liability or responsibility for the accuracy, |
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47 | * completeness, or usefulness of any data, apparatus, product, or process |
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48 | * disclosed, or represents that its use would not infringe privately owned |
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49 | * rights. |
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50 | * |
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51 | * Stanford disclaimer of liability |
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52 | * -------------------------------- |
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53 | * Stanford University makes no representations or warranties, express or |
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54 | * implied, nor assumes any liability for the use of this software. |
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55 | * |
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56 | * Stanford disclaimer of copyright |
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57 | * -------------------------------- |
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58 | * Stanford University, owner of the copyright, hereby disclaims its |
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59 | * copyright and all other rights in this software. Hence, anyone may |
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60 | * freely use it for any purpose without restriction. |
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61 | * |
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62 | * Maintenance of notices |
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63 | * ---------------------- |
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64 | * In the interest of clarity regarding the origin and status of this |
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65 | * SLAC software, this and all the preceding Stanford University notices |
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66 | * are to remain affixed to any copy or derivative of this software made |
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67 | * or distributed by the recipient and are to be affixed to any copy of |
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68 | * software made or distributed by the recipient that contains a copy or |
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69 | * derivative of this software. |
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70 | * |
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71 | * ------------------ SLAC Software Notices, Set 4 OTT.002a, 2004 FEB 03 |
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72 | */ |
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73 | #ifndef TESTING |
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74 | #include <rtems.h> |
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75 | #include <bsp/flashPgm.h> |
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76 | #include <bsp/flashPgmPvt.h> |
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77 | #else |
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78 | #include "flashPgm.h" |
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79 | #include "flashPgmPvt.h" |
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80 | #endif |
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81 | |
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82 | #include <unistd.h> |
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83 | #include <stdio.h> |
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84 | #include <inttypes.h> |
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85 | #include <ctype.h> |
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86 | #include <fcntl.h> |
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87 | #include <stdlib.h> |
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88 | |
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89 | #define DEBUG 0 |
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90 | #undef DEBUG |
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91 | |
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92 | #ifdef DEBUG |
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93 | #define STATIC |
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94 | #else |
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95 | #define STATIC static |
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96 | #endif |
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97 | |
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98 | /* Forward decls. */ |
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99 | |
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100 | STATIC uint32_t |
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101 | BSP_flashProbeSize(struct bankdesc *b); |
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102 | |
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103 | STATIC struct bankdesc * |
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104 | bankValidate(int bank, int quiet); |
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105 | |
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106 | static struct bankdesc * |
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107 | argcheck(int bank, uint32_t offset, char *src, uint32_t size); |
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108 | |
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109 | /* Type definitions */ |
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110 | |
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111 | union bconv { |
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112 | uint32_t u; |
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113 | uint16_t s[2]; |
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114 | char c[4]; |
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115 | }; |
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116 | |
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117 | /* Little helpers... */ |
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118 | |
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119 | /* Read parallel devices */ |
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120 | static void |
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121 | rd_par(struct bankdesc *b, union bconv *pv, uint32_t a) |
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122 | { |
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123 | if ( 4 == FLASH_STRIDE(b) ) { |
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124 | pv->u = *(_u32_a_t*)a; |
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125 | } else if ( 2 == FLASH_STRIDE(b) ) { |
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126 | pv->s[0] = *(_u16_a_t*)a; |
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127 | } else { |
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128 | pv->c[0] = *(_u8_a_t*)a; |
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129 | } |
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130 | } |
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131 | |
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132 | /* 'flush' input buffer and get an upper-case char from stdin */ |
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133 | STATIC int |
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134 | getUc(void) |
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135 | { |
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136 | fseek(stdin, 0, SEEK_END); |
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137 | return toupper(getchar()); |
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138 | } |
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139 | |
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140 | /* Advance rotating progress indicator on stdout. |
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141 | * The idea is that the caller updates a state variable |
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142 | * using 'flip': |
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143 | * |
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144 | * unsigned f = 0; |
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145 | * |
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146 | * // advance indicator |
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147 | * f = flip(f); |
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148 | * |
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149 | * ... |
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150 | * |
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151 | * // erase indicator |
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152 | * wipe(f); |
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153 | */ |
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154 | static unsigned flip(unsigned x) |
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155 | { |
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156 | static char bar[]= { '/', '-', '\\', '|' }; |
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157 | putchar('\b'); |
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158 | putchar(bar[ x & 3]); |
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159 | fflush(stdout); |
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160 | return x+1; |
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161 | } |
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162 | |
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163 | /* If f!=0 then erase one char on stdout. |
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164 | * ( If 'flip' was never called then f should still |
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165 | * be zero and no action is taken). |
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166 | */ |
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167 | static void wipe(unsigned f) |
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168 | { |
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169 | if ( f ) { |
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170 | putchar('\b'); |
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171 | putchar(' '); |
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172 | putchar('\b'); |
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173 | fflush(stdout); |
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174 | } |
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175 | } |
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176 | |
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177 | /* lookup vendor ID in table of known vendors using ops |
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178 | * associated with the vendor. |
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179 | */ |
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180 | STATIC struct vendesc * |
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181 | knownVendor(struct bankdesc *b, uint32_t addr, uint32_t *pd, unsigned quiet) |
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182 | { |
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183 | uint32_t v; |
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184 | struct vendesc *rval; |
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185 | |
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186 | for ( rval=b->knownVendors; rval->name; rval++ ) { |
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187 | |
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188 | if ( rval->ops->get_id(b, addr, &v, pd) ) { |
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189 | if ( quiet < 2 ) |
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190 | fprintf(stderr,"Unable to read vendor/device info at 0x%08"PRIx32"\n", addr); |
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191 | return 0; |
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192 | } |
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193 | |
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194 | if ( rval->id == v ) { |
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195 | return rval; |
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196 | } |
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197 | } |
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198 | if ( quiet < 2 ) |
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199 | fprintf(stderr,"Unknown vendor id (0x%04"PRIx32") at 0x%08"PRIx32"\n",v, addr); |
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200 | return 0; |
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201 | } |
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202 | |
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203 | /* lookup device ID in table of known devices */ |
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204 | STATIC struct devdesc * |
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205 | knownDevice(struct vendesc *v, uint32_t d) |
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206 | { |
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207 | struct devdesc *rval; |
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208 | for ( rval=v->known_devs; rval->name; rval++ ) { |
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209 | if ( rval->id == d ) { |
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210 | return rval; |
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211 | } |
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212 | } |
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213 | return 0; |
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214 | } |
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215 | |
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216 | /* Write 'n_words' (32-bit) from 'src' to 'addr'ess on flash. |
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217 | * (src is a char* to emphasize that no src-alignment is required) |
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218 | * |
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219 | * RETURNS: 0 on success, (destination) address of failure on error. |
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220 | * |
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221 | * NOTES: - device switched back to array mode on exit. |
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222 | * - 'addr' must be 32-bit aligned. |
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223 | */ |
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224 | |
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225 | STATIC uint32_t |
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226 | BSP_flashWriteDataRaw(struct bankdesc *b, uint32_t addr, char *src, uint32_t n_words, int quiet) |
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227 | { |
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228 | uint32_t sta; |
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229 | uint32_t N; |
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230 | uint32_t nxt, a, i, bufsz; |
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231 | uint32_t then, now; |
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232 | unsigned f; |
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233 | char *s; |
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234 | |
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235 | #ifdef DEBUG |
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236 | printf("\nflashWriteDataRaw(0x%08"PRIx32", %p, 0x%"PRIx32")\n", addr, src, n_words); |
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237 | #endif |
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238 | |
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239 | if ( 0 == n_words ) { |
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240 | return 0; |
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241 | } |
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242 | |
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243 | if ( !b ) { |
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244 | fprintf(stderr,"Missing bank descriptor argument\n"); |
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245 | return -1; |
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246 | } |
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247 | if ( !b->dd ) { |
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248 | fprintf(stderr,"Bank descriptor not initialized\n"); |
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249 | return -1; |
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250 | } |
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251 | |
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252 | if ( addr & (FLASH_STRIDE(b)-1) ) { |
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253 | fprintf(stderr,"Misaligned address (not on word boundary) 0x%08"PRIx32"\n", addr); |
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254 | return -1; |
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255 | } |
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256 | |
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257 | if ( (sta = b->ops->check_ready(b, addr)) ) { |
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258 | /* Error msgs have already been printed */ |
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259 | return addr; |
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260 | } |
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261 | |
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262 | bufsz = FLASH_NDEVS(b) * b->dd->bufsz; |
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263 | |
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264 | then = BSP_flashBspOps.read_us_timer(); |
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265 | |
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266 | for ( f = 0, a = addr, s=src, i = n_words; i ; s+=N ) { |
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267 | /* start of next buffer */ |
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268 | nxt = (a + bufsz) & ~(bufsz-1); |
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269 | |
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270 | /* number of bytes */ |
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271 | N = (nxt - a); |
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272 | |
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273 | if ( N > i * FLASH_STRIDE(b) ) |
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274 | N = i * FLASH_STRIDE(b); |
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275 | |
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276 | i -= N/FLASH_STRIDE(b); |
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277 | |
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278 | if ( (sta = b->ops->write_line(b, a, s, N)) ) |
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279 | goto bail; |
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280 | |
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281 | if ( ! quiet && (now = BSP_flashBspOps.read_us_timer()) - then > 500000 ) { |
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282 | f = flip(f); |
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283 | then = now; |
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284 | } |
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285 | |
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286 | a = nxt; |
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287 | } |
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288 | |
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289 | sta = 0; |
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290 | |
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291 | /* verify */ |
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292 | for ( i=0, a=addr; i < n_words * FLASH_STRIDE(b); i++, a++ ) { |
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293 | if ( *(char*)a != src[i] ) { |
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294 | sta = -2; |
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295 | goto bail; |
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296 | } |
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297 | } |
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298 | |
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299 | bail: |
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300 | if ( ! quiet ) { |
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301 | wipe(f); |
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302 | } |
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303 | if ( sta ) { |
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304 | switch ( sta ) { |
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305 | default: |
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306 | fprintf(stderr,"Error (flashWriteDataRaw): write error\n"); |
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307 | b->ops->print_stat(b, sta,0); |
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308 | break; |
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309 | |
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310 | case -1: |
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311 | fprintf(stderr,"Error (flashWriteDataRaw): Timeout\n"); |
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312 | break; |
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313 | |
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314 | case -2: |
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315 | fprintf(stderr,"Error (flashWriteDataRaw): write verification failed at 0x%08"PRIx32"\n", a); |
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316 | break; |
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317 | } |
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318 | b->ops->array_mode(b, a); |
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319 | } else { |
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320 | /* no errors */ |
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321 | a = 0; |
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322 | } |
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323 | return a; |
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324 | } |
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325 | |
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326 | |
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327 | /* Query device for basic information verifying that we talk |
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328 | * to a 'known'/'supported' device. |
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329 | * |
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330 | * This is not really clean since (until we implement CFI) |
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331 | * we already need to know what kind of device it is to |
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332 | * be able to read its ID... |
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333 | * |
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334 | * NOTES: - device switched back to array mode on exit. |
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335 | * - 'addr' must be 32-bit aligned. |
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336 | */ |
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337 | |
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338 | STATIC struct devdesc * |
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339 | BSP_flashCheckId(struct bankdesc *b, uint32_t addr, unsigned quiet) |
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340 | { |
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341 | uint8_t x; |
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342 | uint32_t d; |
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343 | struct vendesc *vd; |
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344 | struct devdesc *dd; |
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345 | |
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346 | /* check if it's flash at all: */ |
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347 | x = *(A8)addr; |
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348 | *(A8)addr = ~x; |
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349 | if ( x != *(A8)addr ) { |
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350 | /* restore */ |
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351 | *(A8)addr = x; |
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352 | if ( quiet < 3 ) |
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353 | fprintf(stderr,"Addr 0x%08"PRIx32" seems to be RAM!\n", addr); |
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354 | return 0; |
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355 | } |
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356 | |
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357 | if ( !(vd = knownVendor(b, addr, &d, quiet)) ) { |
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358 | return 0; |
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359 | } |
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360 | |
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361 | /* Use the vendor ops for this bank */ |
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362 | b->ops = vd->ops; |
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363 | |
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364 | if ( !quiet ) |
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365 | printf("Flash device, vendor: %s", vd->name); |
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366 | |
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367 | if ( !(dd = knownDevice(vd, d)) ) { |
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368 | if ( !quiet ) |
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369 | printf("\n"); |
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370 | if ( quiet < 2 ) |
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371 | fprintf(stderr,"Unknown device id (0x%04"PRIx32") at 0x%08"PRIx32"\n",d, addr); |
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372 | return 0; |
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373 | } |
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374 | |
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375 | /* logical sector size is device sector size |
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376 | * multiplied by # of devices in parallel |
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377 | */ |
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378 | b->fblksz = dd->fblksz * FLASH_NDEVS(b); |
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379 | |
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380 | if ( !quiet ) |
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381 | printf(", device: %s -- size 0x%08"PRIx32" bytes\n", dd->name, dd->size); |
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382 | return dd; |
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383 | } |
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384 | |
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385 | /* We don't have device info yet so just |
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386 | * use 64k alignment |
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387 | */ |
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388 | #define SCAN_BACK_OFFSET 0x10000 |
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389 | |
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390 | /* Scan address range for flash devices and compute total size |
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391 | * of bank. |
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392 | * |
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393 | * RETURNS: size in bytes. |
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394 | */ |
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395 | STATIC uint32_t |
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396 | BSP_flashProbeSize(struct bankdesc *b) |
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397 | { |
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398 | int max = b->max_size; |
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399 | uint32_t rval; |
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400 | struct devdesc *dd; |
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401 | unsigned q; |
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402 | if ( max > 0 ) { |
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403 | for ( rval = 0, q=1; rval < max && (dd = BSP_flashCheckId(b, b->start + rval, q)); q=3 ) { |
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404 | rval += dd->size * FLASH_NDEVS(b); |
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405 | } |
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406 | } else { |
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407 | /* bank is populated from the top; scan backwards */ |
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408 | max = -max; |
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409 | for ( rval = 0, q=1; rval < max && (dd = BSP_flashCheckId(b, b->start + max - SCAN_BACK_OFFSET - rval, q)); q=3 ) { |
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410 | rval += dd->size * FLASH_NDEVS(b); |
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411 | } |
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412 | b->start += max - rval; |
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413 | } |
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414 | return rval; |
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415 | } |
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416 | |
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417 | uint32_t |
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418 | BSP_flashStart(int bank) |
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419 | { |
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420 | struct bankdesc *b; |
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421 | if ( ! ( b = argcheck(bank, 0, 0, 0) ) ) |
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422 | return -1; |
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423 | return b->start; |
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424 | } |
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425 | |
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426 | uint32_t |
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427 | BSP_flashSize(int bank) |
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428 | { |
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429 | struct bankdesc *b; |
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430 | if ( ! ( b = argcheck(bank, 0, 0, 0) ) ) |
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431 | return -1; |
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432 | return b->size; |
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433 | } |
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434 | |
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435 | uint32_t |
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436 | BSP_flashBlockSize(int bank) |
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437 | { |
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438 | struct bankdesc *b; |
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439 | if ( ! ( b = argcheck(bank, 0, 0, 0) ) ) |
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440 | return -1; |
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441 | return b->fblksz; |
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442 | } |
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443 | |
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444 | |
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445 | #ifndef TESTING |
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446 | |
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447 | /* Obtain bank description making sure it is initialized and not write protected */ |
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448 | STATIC struct bankdesc * |
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449 | bankValidate(int bank, int quiet) |
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450 | { |
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451 | struct bankdesc *b = BSP_flashBspOps.bankcheck(bank, quiet); |
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452 | |
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453 | /* If flash is write-protected then we can't even talk to it... */ |
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454 | if ( BSP_flashBspOps.flash_wp(bank, -1) ) { |
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455 | fprintf(stderr,"Flash bank #%i is write-protected; use 'BSP_flashWriteEnable(int bank)' and/or jumper\n", bank); |
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456 | return 0; |
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457 | } |
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458 | |
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459 | if ( !b->dd && !(b->dd = BSP_flashCheckId(b, b->start,1)) ) { |
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460 | fprintf(stderr,"Error: unable to detect flash device in bank #%i\n", bank); |
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461 | return 0; |
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462 | } |
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463 | return b; |
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464 | } |
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465 | |
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466 | /* Validate arguments and write-protection status of 'bank'. |
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467 | * |
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468 | * 'bank': 0..max bank supported by board. |
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469 | * 'offset': 0..bank size - 1 |
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470 | * 'src': src .. src + size - 1 must not overlap bank; 'src' may be NULL |
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471 | * (check is skipped in this case) |
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472 | * |
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473 | * RETURNS: pointer to bank description on success, NULL on error (invalid args; |
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474 | * error message is printed to stderr). |
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475 | * |
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476 | * SIDE EFFECTS: probes for bank size and stores result in bank description table. |
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477 | */ |
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478 | |
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479 | static struct bankdesc * |
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480 | argcheck(int bank, uint32_t offset, char *src, uint32_t size) |
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481 | { |
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482 | struct bankdesc *b; |
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483 | |
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484 | if ( !(b=bankValidate(bank, 0)) ) { |
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485 | return 0; |
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486 | } |
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487 | |
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488 | if ( !b->size && !(b->size = BSP_flashProbeSize(b)) ) { |
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489 | fprintf(stderr,"Configuration Error - unable to determine flash size\n"); |
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490 | return 0; |
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491 | } |
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492 | if ( offset + size > b->size ) { |
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493 | fprintf(stderr,"Error: requested size exceeds available flash (0x%08"PRIx32" bytes)\n", b->size); |
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494 | return 0; |
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495 | } |
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496 | |
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497 | if ( src && ( src + size > (char*)b->start && src < (char*)(b->start + b->size) ) ) { |
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498 | fprintf(stderr,"Error: cannot copy data within flash bank\n"); |
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499 | return 0; |
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500 | } |
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501 | |
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502 | |
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503 | return b; |
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504 | } |
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505 | |
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506 | /* Calculate region that needs to be erased from 'offset' and 'n_bytes' |
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507 | * handling alignment and checking for blank areas that need not be |
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508 | * erased. |
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509 | * Ask for user confirmation and erase calculated region. |
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510 | * |
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511 | * RETURNS: 0 on success, -1 or destination address on error. |
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512 | * |
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513 | * NOTES: - device switched back to array mode on exit. |
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514 | * - prints progress/messages. |
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515 | */ |
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516 | STATIC int |
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517 | regionCheckAndErase(int bank, uint32_t offset, char *src, uint32_t n_bytes, int quiet) |
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518 | { |
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519 | struct bankdesc *b; |
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520 | uint32_t i; |
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521 | char *p; |
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522 | uint32_t a,e; |
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523 | |
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524 | if ( ! (b = argcheck(bank, offset, src, n_bytes)) ) |
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525 | return -1; |
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526 | |
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527 | a = offset & ~(b->fblksz - 1); |
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528 | e = (offset + n_bytes + b->fblksz - 1) & ~ (b->fblksz - 1); |
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529 | |
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530 | /* If 'offset' is not block-aligned then rest of the block must |
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531 | * be free. |
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532 | */ |
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533 | if ( a != offset ) { |
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534 | a += b->fblksz; |
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535 | i = ( a > offset + n_bytes ) ? offset + n_bytes : a; |
---|
536 | for ( p = (char*)(b->start + offset); p < (char*)(b->start + i); p++ ) { |
---|
537 | if ( (char)0xff != *p ) { |
---|
538 | if ( ! quiet ) { |
---|
539 | fprintf(stderr,"Starting offset not block-aligned and destination area not empty.\n"); |
---|
540 | fprintf(stderr,"I'll need to erase data below destination start\n"); |
---|
541 | } |
---|
542 | a -= b->fblksz; |
---|
543 | break; |
---|
544 | } |
---|
545 | } |
---|
546 | } |
---|
547 | if ( e != offset + n_bytes ) { |
---|
548 | e -= b->fblksz; |
---|
549 | i = ( e < offset ) ? offset : e; |
---|
550 | for ( p = (char*)(b->start + i); p < (char*)(b->start + offset + n_bytes); p++ ) { |
---|
551 | if ( (char)0xff != *p ) { |
---|
552 | if ( ! quiet ) { |
---|
553 | fprintf(stderr,"Ending offset not block-aligned and destination area not empty.\n"); |
---|
554 | fprintf(stderr,"I'll need to erase data beyond destination end\n"); |
---|
555 | } |
---|
556 | e += b->fblksz; |
---|
557 | break; |
---|
558 | } |
---|
559 | } |
---|
560 | } |
---|
561 | if ( ! quiet ) { |
---|
562 | if ( e > a ) |
---|
563 | printf("ERASING 0x%08"PRIx32" .. 0x%08"PRIx32"\n", (b->start+a), (b->start + e - 1)); |
---|
564 | printf("WRITING 0x%08"PRIx32" .. 0x%08"PRIx32"\n", (b->start+offset), (b->start + offset + n_bytes - 1)); |
---|
565 | printf("OK to proceed y/[n]?"); fflush(stdout); |
---|
566 | if ( 'Y' != getUc() ) { |
---|
567 | printf("ABORTED\n"); |
---|
568 | return -1; |
---|
569 | } |
---|
570 | } |
---|
571 | if ( e > a ) { |
---|
572 | if ( quiet < 2 ) { |
---|
573 | printf("ERASING "); fflush(stdout); |
---|
574 | } |
---|
575 | |
---|
576 | if ( (i = BSP_flashErase(bank, a, e-a, quiet ? quiet : 1)) ) |
---|
577 | return i; |
---|
578 | |
---|
579 | if ( quiet < 2 ) { |
---|
580 | printf("DONE\n"); |
---|
581 | } |
---|
582 | } |
---|
583 | |
---|
584 | return 0; |
---|
585 | } |
---|
586 | |
---|
587 | /* Write to a flash region ('offset'..'offset'+'n_bytes'-1 on 'bank'). |
---|
588 | * |
---|
589 | * RETURNS: 0 on success, -1 or destination address on error. |
---|
590 | * |
---|
591 | * NOTES: - device switched back to array mode on exit. |
---|
592 | * - no erase operation is performed. |
---|
593 | * - written data is verified against source. |
---|
594 | */ |
---|
595 | |
---|
596 | STATIC int |
---|
597 | BSP_flashWriteRegion(int bank, uint32_t offset, char *src, uint32_t n_bytes, int quiet) |
---|
598 | { |
---|
599 | struct bankdesc *b = BSP_flashBspOps.bankcheck(bank, 0); /* caller did bankValidate() */ |
---|
600 | uint32_t ab = offset & ~(b->fblksz - 1); |
---|
601 | uint32_t eb = (offset + n_bytes + b->fblksz - 1) & ~(b->fblksz - 1); |
---|
602 | uint32_t o,i,a,e; |
---|
603 | int err; |
---|
604 | char *p; |
---|
605 | union bconv buf; |
---|
606 | |
---|
607 | /* unlock */ |
---|
608 | for ( i=ab; i<eb; i+=b->fblksz ) { |
---|
609 | b->ops->unlock_block(b, b->start + i ); |
---|
610 | } |
---|
611 | |
---|
612 | err = 0; |
---|
613 | p = src; |
---|
614 | |
---|
615 | /* handle misaligned offset merging old contents */ |
---|
616 | o = b->start + offset; |
---|
617 | a = o & ~(FLASH_STRIDE(b)-1); |
---|
618 | e = (o + n_bytes) & ~(FLASH_STRIDE(b)-1); |
---|
619 | |
---|
620 | if ( o > a ) { |
---|
621 | i = o - a; |
---|
622 | |
---|
623 | rd_par(b, &buf, a); |
---|
624 | |
---|
625 | while ( i < FLASH_STRIDE(b) && p < src + n_bytes ) { |
---|
626 | buf.c[i++] = *p++; |
---|
627 | } |
---|
628 | if ( (err = BSP_flashWriteDataRaw(b, a, buf.c, 1, quiet)) ) |
---|
629 | goto bail; |
---|
630 | a += FLASH_STRIDE(b); |
---|
631 | } |
---|
632 | |
---|
633 | |
---|
634 | /* caution if misaligned data covering only one or two words */ |
---|
635 | |
---|
636 | if ( e > a ) { |
---|
637 | i = (e-a); |
---|
638 | if ( (err = BSP_flashWriteDataRaw(b, a, p, i/FLASH_STRIDE(b), quiet)) ) |
---|
639 | goto bail; |
---|
640 | p += i; |
---|
641 | } |
---|
642 | |
---|
643 | /* handle misaligned end */ |
---|
644 | if ( o + n_bytes > e) { |
---|
645 | rd_par(b, &buf, e); |
---|
646 | for ( i=0; p < src + n_bytes; ) { |
---|
647 | buf.c[i++] = *p++; |
---|
648 | } |
---|
649 | if ( (err = BSP_flashWriteDataRaw(b, e, buf.c, 1, quiet)) ) |
---|
650 | goto bail; |
---|
651 | } |
---|
652 | |
---|
653 | bail: |
---|
654 | /* lock area */ |
---|
655 | for ( i=ab; i<eb; i+=b->fblksz ) { |
---|
656 | b->ops->lock_block(b, b->start + i ); |
---|
657 | } |
---|
658 | |
---|
659 | /* final verification */ |
---|
660 | if ( !err ) { |
---|
661 | for ( i=0; i<n_bytes; i++ ) { |
---|
662 | if ( ((char*)(b->start + offset))[i] != src[i] ) { |
---|
663 | fprintf(stderr,"Final verification failed at offset 0x%08"PRIx32"\n", (offset + i)); |
---|
664 | return b->start + offset + i; |
---|
665 | } |
---|
666 | } |
---|
667 | } |
---|
668 | |
---|
669 | return err; |
---|
670 | } |
---|
671 | |
---|
672 | int |
---|
673 | BSP_flashErase(int bank, uint32_t offset, uint32_t size, int quiet) |
---|
674 | { |
---|
675 | struct bankdesc *b; |
---|
676 | uint32_t a,i; |
---|
677 | int f; |
---|
678 | |
---|
679 | if ( ! (b = argcheck(bank, offset, 0, size)) ) |
---|
680 | return -1; |
---|
681 | |
---|
682 | if ( offset & (b->fblksz - 1) ) { |
---|
683 | fprintf(stderr,"Offset misaligned (needs to be multiple of 0x%08"PRIx32")\n", b->fblksz); |
---|
684 | return -1; |
---|
685 | } |
---|
686 | if ( size & (b->fblksz - 1) ) { |
---|
687 | fprintf(stderr,"Size misaligned (needs to be multiple of 0x%08"PRIx32")\n", b->fblksz); |
---|
688 | return -1; |
---|
689 | } |
---|
690 | |
---|
691 | a = b->start + offset; |
---|
692 | |
---|
693 | if ( !quiet ) { |
---|
694 | printf("ERASING Flash (Bank #%i)\n from 0x%08"PRIx32" .. 0x%08"PRIx32"\nproceed y/[n]?", |
---|
695 | bank, a, (a+size-1)); |
---|
696 | fflush(stdout); |
---|
697 | if ( 'Y' != getUc() ) { |
---|
698 | printf("ABORTED\n"); |
---|
699 | return -1; |
---|
700 | } |
---|
701 | } |
---|
702 | f = 0; |
---|
703 | while ( size ) { |
---|
704 | /* work to do ? */ |
---|
705 | for ( i = 0; i<b->fblksz; i++ ) { |
---|
706 | if ( (char)0xff != ((char*)a)[i] ) { |
---|
707 | b->ops->unlock_block(b, a); |
---|
708 | i = b->ops->erase_block(b, a); |
---|
709 | b->ops->lock_block(b, a); |
---|
710 | if (i) { |
---|
711 | wipe(f); |
---|
712 | return a; |
---|
713 | } |
---|
714 | break; |
---|
715 | } |
---|
716 | } |
---|
717 | |
---|
718 | if ( quiet < 2 ) { |
---|
719 | f = flip(f); |
---|
720 | } |
---|
721 | |
---|
722 | a += b->fblksz; |
---|
723 | size -= b->fblksz; |
---|
724 | } |
---|
725 | b->ops->array_mode(b, a); |
---|
726 | if ( quiet < 2 ) { |
---|
727 | wipe(f); |
---|
728 | } |
---|
729 | return 0; |
---|
730 | } |
---|
731 | |
---|
732 | int |
---|
733 | BSP_flashWrite(int bank, uint32_t offset, char *src, uint32_t n_bytes, int quiet) |
---|
734 | { |
---|
735 | int rval; |
---|
736 | |
---|
737 | if ( !src ) { |
---|
738 | fprintf(stderr,"Error: Data source pointer is NULL\n"); |
---|
739 | return -1; |
---|
740 | } |
---|
741 | |
---|
742 | if ( (rval = regionCheckAndErase(bank, offset, src, n_bytes, quiet)) ) |
---|
743 | return rval; |
---|
744 | |
---|
745 | if ( ! quiet ) { |
---|
746 | printf("WRITING "); fflush(stdout); |
---|
747 | } |
---|
748 | |
---|
749 | rval = BSP_flashWriteRegion(bank, offset, src, n_bytes, quiet); |
---|
750 | |
---|
751 | if ( !quiet && !rval ) { |
---|
752 | printf("DONE"); |
---|
753 | } |
---|
754 | if ( !quiet ) |
---|
755 | printf("\n"); |
---|
756 | return rval; |
---|
757 | } |
---|
758 | |
---|
759 | static int |
---|
760 | bfill(int fd, char *buf, int size) |
---|
761 | { |
---|
762 | int got, avail; |
---|
763 | for (avail = size; (got = read(fd, buf, avail)) > 0; avail-=got ) { |
---|
764 | buf += got; |
---|
765 | } |
---|
766 | return size - avail; |
---|
767 | } |
---|
768 | |
---|
769 | int |
---|
770 | BSP_flashWriteFile(int bank, uint32_t offset, char *fname, int quiet) |
---|
771 | { |
---|
772 | int fd = -1; |
---|
773 | struct stat sb; |
---|
774 | uint32_t sz; |
---|
775 | int rval = -1; |
---|
776 | char *buf = 0; |
---|
777 | uint32_t got; |
---|
778 | struct bankdesc *b; |
---|
779 | unsigned f = 0; |
---|
780 | |
---|
781 | if ( ! (b = bankValidate(bank, 0)) ) |
---|
782 | return -1; |
---|
783 | |
---|
784 | for ( sz = 0; -1 == fd ; ) { |
---|
785 | if ( (fd = open(fname,O_RDONLY)) < 0 ) { |
---|
786 | perror("Opening file"); |
---|
787 | return -1; |
---|
788 | } |
---|
789 | |
---|
790 | if ( sz ) |
---|
791 | break; |
---|
792 | |
---|
793 | if ( fstat(fd, &sb) ) { |
---|
794 | fprintf(stderr,"Warning: fstat doesn't work; need to slurp file to determine size; please be patient.\n"); |
---|
795 | FILE *f; |
---|
796 | close(fd); fd = -1; |
---|
797 | f = fopen(fname,"r"); |
---|
798 | if ( !f ) { |
---|
799 | perror("fdopen"); |
---|
800 | return -1; |
---|
801 | } |
---|
802 | while ( EOF != fgetc(f) ) |
---|
803 | sz++; |
---|
804 | fclose(f); |
---|
805 | /* reopen */ |
---|
806 | } else { |
---|
807 | sz = sb.st_size; |
---|
808 | } |
---|
809 | if ( 0 == sz ) { |
---|
810 | fprintf(stderr,"Error: zero file size (?)\n"); |
---|
811 | goto bail; |
---|
812 | } |
---|
813 | } |
---|
814 | |
---|
815 | if ( !(buf = malloc(b->fblksz)) ) { |
---|
816 | perror("buffer allocation"); |
---|
817 | goto bail; |
---|
818 | } |
---|
819 | |
---|
820 | /* See if we can erase the entire region */ |
---|
821 | if ( (rval = regionCheckAndErase(bank, offset, buf, sz, quiet)) ) |
---|
822 | goto bail; |
---|
823 | |
---|
824 | /* Proceed copying chunks */ |
---|
825 | if ( quiet < 2 ) { |
---|
826 | printf("WRITING "); fflush(stdout); |
---|
827 | } |
---|
828 | |
---|
829 | while ( (got = bfill(fd, buf, b->fblksz)) > 0 && sz ) { |
---|
830 | if ( (rval = BSP_flashWriteRegion(bank, offset, buf, got, 1)) ) { |
---|
831 | wipe(f); |
---|
832 | goto bail; |
---|
833 | } |
---|
834 | offset += got; |
---|
835 | sz -= got; |
---|
836 | if ( quiet < 2 ) { |
---|
837 | f = flip(f); |
---|
838 | } |
---|
839 | } |
---|
840 | if ( got < 0 ) { |
---|
841 | perror("reading file"); |
---|
842 | rval = offset; |
---|
843 | goto bail; |
---|
844 | } |
---|
845 | |
---|
846 | if ( quiet < 2 ) { |
---|
847 | wipe(f); |
---|
848 | printf("DONE"); |
---|
849 | } |
---|
850 | bail: |
---|
851 | if ( quiet < 2 ) { |
---|
852 | printf("\n"); |
---|
853 | } |
---|
854 | if ( fd > -1 ) |
---|
855 | close(fd); |
---|
856 | free(buf); |
---|
857 | return rval; |
---|
858 | } |
---|
859 | |
---|
860 | int |
---|
861 | BSP_flashWriteEnable(int bank) |
---|
862 | { |
---|
863 | return BSP_flashBspOps.flash_wp(bank,0); |
---|
864 | } |
---|
865 | |
---|
866 | int |
---|
867 | BSP_flashWriteDisable(int bank) |
---|
868 | { |
---|
869 | return BSP_flashBspOps.flash_wp(bank,1); |
---|
870 | } |
---|
871 | |
---|
872 | int |
---|
873 | BSP_flashDumpInfo(FILE *f) |
---|
874 | { |
---|
875 | struct bankdesc *b; |
---|
876 | int bank; |
---|
877 | |
---|
878 | if ( !f ) |
---|
879 | f = stdout; |
---|
880 | |
---|
881 | /* use 'bankValidate()' with 'quiet' flag to suppress error message when |
---|
882 | * we reach the end of the table. |
---|
883 | */ |
---|
884 | for ( bank = 0; BSP_flashBspOps.bankcheck(bank,1); bank++ ) { |
---|
885 | if ( (b=argcheck(bank,0,0,0)) ) { |
---|
886 | fprintf(f,"Flash Bank #%i; 0x%08"PRIx32" .. 0x%08"PRIx32" (%"PRId32" bytes)\n", |
---|
887 | bank, b->start, (b->start + b->size - 1), b->size); |
---|
888 | fprintf(f,"%i * %i-bit devices in parallel; block size 0x%"PRIx32"\n", FLASH_NDEVS(b), FLASH_WIDTH(b)*8, b->fblksz); |
---|
889 | BSP_flashCheckId(b, b->start, 0); |
---|
890 | } |
---|
891 | } |
---|
892 | |
---|
893 | return 0; |
---|
894 | } |
---|
895 | |
---|
896 | #else |
---|
897 | |
---|
898 | int |
---|
899 | main(int argc, char **argv) |
---|
900 | { |
---|
901 | uint32_t fla[1000]; |
---|
902 | uint32_t qqq[1000]; |
---|
903 | int i; |
---|
904 | for ( i=0; i<sizeof(qqq)/sizeof(qqq[0]); i++ ) |
---|
905 | qqq[i] = 0xdada<<16 | i; |
---|
906 | BSP_flashWriteDataRaw(0, (uint32_t)fla, (char*)qqq, 32, 0); |
---|
907 | } |
---|
908 | #endif |
---|