FreeCalypso > hg > freecalypso-tools

annotate target-utils/flash-boot-test/watchdog.c @ 1012:11391cb6bdc0

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patch from fixeria: doc change from SE K2x0 to K2xx Since their discovery in late 2022, Sony Ericsson K200 and K220 phones were collectively referred to as SE K2x0 in FreeCalypso documentation. However, now that SE K205 has been discovered as yet another member of the same family (same PCBA in different case), it makes more sense to refer to the whole family as SE K2xx.
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 23 Sep 2024 12:23:20 +0000
parents 3d7b546c710c
children
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1 #include <sys/types.h>
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2 #include "types.h"
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3
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4 void
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5 cmd_wd()
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6 {
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7 /* stop/disable the watchdog timer */
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8 *(volatile u16 *)0xFFFFF804 = 0xF5;
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9 *(volatile u16 *)0xFFFFF804 = 0xA0;
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10 }
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11
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12 void
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13 cmd_we()
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14 {
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15 /* watchdog enable */
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16 *(volatile u16 *)0xFFFFF804 = 0x8000;
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17 }
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19 void
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20 cmd_wr()
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21 {
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22 /* read and display watchdog downcount register */
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23 printf("%04X\n", *(volatile u16 *)0xFFFFF802);
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24 }
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25
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26 void
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27 cmd_ww(argbulk)
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28 char *argbulk;
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29 {
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30 /* single or double write to WATCHDOG_TIM_MODE */
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31 char *argv[3];
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32 u_long w1, w2;
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33
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34 if (parse_args(argbulk, 1, 2, argv, 0) < 0)
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35 return;
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36 if (parse_hexarg(argv[0], 4, &w1) < 0) {
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37 printf("ERROR: arg1 must be a valid 16-bit hex value\n");
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38 return;
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39 }
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40 if (argv[1] && parse_hexarg(argv[1], 4, &w2) < 0) {
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41 printf("ERROR: arg2 must be a valid 16-bit hex value\n");
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42 return;
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43 }
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44 /* do it */
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45 *(volatile u16 *)0xFFFFF804 = w1;
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46 if (argv[1])
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47 *(volatile u16 *)0xFFFFF804 = w2;
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48 }