1 /***************************************************************************
2 * Copyright (C) 2015 Tomas Vanek *
5 * This program is free software; you can redistribute it and/or modify *
6 * it under the terms of the GNU General Public License as published by *
7 * the Free Software Foundation; either version 2 of the License, or *
8 * (at your option) any later version. *
10 * This program is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13 * GNU General Public License for more details. *
15 * You should have received a copy of the GNU General Public License *
16 * along with this program; if not, write to the *
17 * Free Software Foundation, Inc. *
18 ***************************************************************************/
21 Disable watchdog for Kinetis Kx and KVx
25 Used instruction set should work on both Cortex-M4 and M0+
33 /* WDOG registers offsets */
42 /* WDOG_UNLOCK = 0xC520 */
44 strh r2, [r0, WDOG_UNLOCK]
45 /* WDOG_UNLOCK = 0xD928 */
47 strh r2, [r0, WDOG_UNLOCK]
48 /* WDOG_STCTRLH clear bit 0 */
50 ldrh r2, [r0, WDOG_STCTRLH]
52 strh r2, [r0, WDOG_STCTRLH]
53 /* OpenOCD checks exit point address. Jump to the very end. */
58 /* Avoid padding at .text segment end. Otherwise exit point check fails. */
59 .skip ( . - start + 2) & 2, 0