FreeCalypso > hg > freecalypso-tools

annotate target-utils/libcommon/cmd_w32.c @ 416:30f6d1c32c6f

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doc/Flash-boot-defect article removed (no longer relevant) This article is no longer relevant because the issue in question only affected one (1) defective FCDEV3B board which was not and never will be sold.
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 26 Oct 2018 07:11:08 +0000
parents e7502631a0f9
children
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1 /*
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2 * w32 hexaddr xxxxxxxx -- write a 32-bit register or memory location
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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_w32(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 addr, data;
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14
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15 if (parse_args(argbulk, 2, 2, argv, 0) < 0)
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16 return;
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17 if (parse_hexarg(argv[0], 8, &addr) < 0) {
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18 printf("ERROR: arg1 must be a valid 32-bit hex address\n");
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19 return;
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20 }
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21 if (addr & 3) {
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22 printf("ERROR: unaligned address\n");
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23 return;
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24 }
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25 if (parse_hexarg(argv[1], 8, &data) < 0) {
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26 printf("ERROR: arg2 must be a valid 32-bit hex value\n");
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27 return;
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28 }
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29 *(volatile u32 *)addr = data;
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30 }