FreeCalypso > hg > freecalypso-tools
annotate target-utils/libload/cmd_blankchk.c @ 11:21eec7569eb8
loadtools support for C139/140 target: -c 1004 compalstage variant
supercedes the previous -c 1003 version and supports the new C139 boot code
version found in the wild that expects "1004" or greater in the signature bytes
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Mon, 25 Jul 2016 21:09:33 +0000 |
parents | e7502631a0f9 |
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1 /* |
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2 * Flash blank check command |
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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 "types.h" |
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7 |
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8 void |
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9 cmd_blankchk(argbulk) |
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10 char *argbulk; |
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11 { |
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12 char *argv[3]; |
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13 u_long start, length; |
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14 u_long addr; |
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15 int c; |
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16 |
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17 if (parse_args(argbulk, 2, 2, argv, 0) < 0) |
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18 return; |
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19 if (parse_hexarg(argv[0], 8, &start) < 0) { |
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20 printf("ERROR: arg1 must be a valid 32-bit hex address\n"); |
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21 return; |
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22 } |
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23 if (parse_hexarg(argv[1], 8, &length) < 0) { |
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24 printf("ERROR: arg2 must be a valid 32-bit hex value (length)\n"); |
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25 return; |
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26 } |
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27 for (addr = start; addr < start + length; addr++) { |
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28 c = *(volatile u8 *)addr; |
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29 if (c != 0xFF) { |
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30 printf("Not blank: %02X at %08X\n", c, addr); |
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31 return; |
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32 } |
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33 } |
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34 printf("OK\n"); |
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35 } |