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annotate loadtools/flerase.c @ 62:6fb41cfa773d

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fc-loadtool: flash erase implemented, compiles
author Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
date Thu, 27 Jun 2013 04:56:17 +0000
parents
children cd12d1049f91
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62
6fb41cfa773d fc-loadtool: flash erase implemented, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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1 /*
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2 * This module implements the flash erase operation
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3 */
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4
6fb41cfa773d fc-loadtool: flash erase implemented, compiles
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5 #include <sys/types.h>
6fb41cfa773d fc-loadtool: flash erase implemented, compiles
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6 #include <stdio.h>
6fb41cfa773d fc-loadtool: flash erase implemented, compiles
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7 #include <stdint.h>
6fb41cfa773d fc-loadtool: flash erase implemented, compiles
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8 #include <stdlib.h>
6fb41cfa773d fc-loadtool: flash erase implemented, compiles
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9 #include <time.h>
6fb41cfa773d fc-loadtool: flash erase implemented, compiles
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10 #include "flash.h"
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11
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12 extern struct flash_bank_info flash_bank_info[2];
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13
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14 do_sector_erase(bi, sp)
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15 struct flash_bank_info *bi;
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16 struct sector_info *sp;
6fb41cfa773d fc-loadtool: flash erase implemented, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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17 {
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18 int stat;
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19 uint16_t flstat;
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20 time_t start_time, curtime;
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21
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22 stat = do_w16(bi->base_addr + sp->start + 0xAAA, 0xAA);
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23 if (stat) {
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24 bad_w16: fprintf(stderr,
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25 "unexpected response to w16 in erase cmd sequence - aborting\n");
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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26 return(-1);
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27 }
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28 stat = do_w16(bi->base_addr + sp->start + 0x554, 0x55);
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29 if (stat)
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30 goto bad_w16;
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31 stat = do_w16(bi->base_addr + sp->start + 0xAAA, 0x80);
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32 if (stat)
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33 goto bad_w16;
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34 stat = do_w16(bi->base_addr + sp->start + 0xAAA, 0xAA);
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35 if (stat)
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36 goto bad_w16;
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37 stat = do_w16(bi->base_addr + sp->start + 0x554, 0x55);
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38 if (stat)
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39 goto bad_w16;
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40 stat = do_w16(bi->base_addr + sp->start + 0xAAA, 0x30);
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41 if (stat)
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42 goto bad_w16;
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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43 start_time = time(0);
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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44 for (;;) {
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45 stat = do_r16(bi->base_addr + sp->start, &flstat);
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46 if (stat)
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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47 return(stat); /* error msg already printed */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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48 if (flstat == 0xFFFF)
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49 return(0);
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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50 curtime = time(0);
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51 if (curtime >= start_time + 20) {
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52 fprintf(stderr, "erase timeout, aborting\n");
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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53 return(-1);
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54 }
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55 }
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56 }
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57
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58 flashcmd_erase(argc, argv, bank)
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59 char **argv;
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60 {
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61 struct flash_bank_info *bi;
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62 u_long offset, len;
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63 char *strtoul_endp;
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64 struct sector_info *startsec, *endsec, *sp;
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65 int stat;
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66
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67 if (argc != 4) {
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68 inv: fprintf(stderr, "usage: %s %s hex-start-offset hex-length\n",
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69 argv[0], argv[1]);
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70 return(-1);
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71 }
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72 offset = strtoul(argv[2], &strtoul_endp, 16);
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73 if (*strtoul_endp)
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74 goto inv;
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75 bi = flash_bank_info + bank;
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76 if (offset >= bi->total_size) {
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77 fprintf(stderr,
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78 "error: specified offset exceeds flash bank size (0x%lx)\n",
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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79 (u_long) bi->total_size);
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80 return(-1);
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81 }
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82 len = strtoul(argv[3], &strtoul_endp, 16);
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83 if (*strtoul_endp)
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84 goto inv;
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85 if (len > bi->total_size - offset) {
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86 fprintf(stderr,
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87 "error: specified offset+length exceed flash bank size (0x%lx)\n",
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88 (u_long) bi->total_size);
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89 return(-1);
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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90 }
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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91 if (!len) {
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92 printf("Zero length specified - nothing to do!\n");
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93 return(0);
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94 }
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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95 /* now enforce sector alignment for both offset and length */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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96 if (get_flash_sector_table(bank) < 0)
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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97 return(-1);
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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98 if (get_flash_sector_range(bi, offset, len, &startsec, &endsec) < 0)
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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99 return(-1);
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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100 printf("Erasing %d sector(s)\n", endsec - startsec);
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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101 for (sp = startsec; sp < endsec; sp++) {
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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102 stat = do_sector_erase(bi, sp);
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103 if (stat)
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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104 return(stat);
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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105 putchar('.');
6fb41cfa773d fc-loadtool: flash erase implemented, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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106 fflush(stdout);
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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107 }
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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108 putchar('\n');
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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109 return(0);
6fb41cfa773d fc-loadtool: flash erase implemented, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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110 }