FreeCalypso > hg > freecalypso-tools

annotate target-utils/libload/cmd_memload.c @ 505:7bf0d909c87e

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fc-loadtool flash ID check: change of reset after the check logic This change only affects those flash configurations that have ID checks enabled. The logic for resetting the flash after the ID check has been changed as follows: 1) If the check fails, we return without attempting to reset the flash. 2) If the check is successful, we reset the flash using the configured method (could be AMD or Intel or Intel W30) instead of always doing an AMD flash reset as the original code did.
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 27 May 2019 19:58:01 +0000
parents 9214118ae941
children
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1 /*
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2 * This module implements the ML (memory load) command, which will be
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3 * used by fc-chainload.
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4 *
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5 * The sole argument to the ML command is the body of an S3 record
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6 * with the initial "S3" characters stripped, i.e., starting with the
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7 * "count" byte, followed by the address, data and checksum bytes
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8 * exactly as in the original S3 record.
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9 */
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10
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11 #include "types.h"
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13 void
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14 cmd_memload(argbulk)
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15 char *argbulk;
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16 {
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17 char *argv[2], *s;
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18 u8 srecbin[256], cksum;
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19 int len, i, c;
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20 u32 addr;
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21
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22 if (parse_args(argbulk, 1, 1, argv, 0) < 0)
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23 return;
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24 s = argv[0];
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25 if (decode_hex_digits(s, 2, &len) < 0) {
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26 inv: printf("ERROR: ML argument is invalid\n");
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27 return;
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28 }
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29 s += 2;
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30 if (len < 6)
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31 goto inv;
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32 srecbin[0] = len;
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33 for (i = 1; i <= len; i++) {
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34 if (decode_hex_digits(s, 2, &c) < 0)
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35 goto inv;
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36 s += 2;
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37 srecbin[i] = c;
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38 }
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39 cksum = 0;
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40 for (i = 0; i <= len; i++)
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41 cksum += srecbin[i];
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42 if (cksum != 0xFF) {
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43 printf("ERROR: bad ML S-record checksum\n");
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44 return;
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45 }
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46 len -= 5;
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47 addr = ((u32)srecbin[1] << 24) |
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48 ((u32)srecbin[2] << 16) |
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49 ((u32)srecbin[3] << 8) |
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50 (u32)srecbin[4];
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9214118ae941 target-utils: use of bcopy() changed to memcpy()
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51 memcpy(addr, srecbin + 5, len);
0
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52 }