1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun * (C) Copyright 2002
3*4882a593Smuzhiyun * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
4*4882a593Smuzhiyun * Marius Groeger <mgroeger@sysgo.de>
5*4882a593Smuzhiyun *
6*4882a593Smuzhiyun * (C) Copyright 2002
7*4882a593Smuzhiyun * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
8*4882a593Smuzhiyun * Alex Zuepke <azu@sysgo.de>
9*4882a593Smuzhiyun *
10*4882a593Smuzhiyun * (C) Copyright 2002
11*4882a593Smuzhiyun * Gary Jennejohn, DENX Software Engineering, <gj@denx.de>
12*4882a593Smuzhiyun *
13*4882a593Smuzhiyun * (C) Copyright 2009
14*4882a593Smuzhiyun * Ilya Yanok, Emcraft Systems Ltd, <yanok@emcraft.com>
15*4882a593Smuzhiyun *
16*4882a593Smuzhiyun * SPDX-License-Identifier: GPL-2.0+
17*4882a593Smuzhiyun */
18*4882a593Smuzhiyun
19*4882a593Smuzhiyun #include <common.h>
20*4882a593Smuzhiyun #include <asm/io.h>
21*4882a593Smuzhiyun #include <asm/arch/imx-regs.h>
22*4882a593Smuzhiyun
23*4882a593Smuzhiyun /*
24*4882a593Smuzhiyun * Reset the cpu by setting up the watchdog timer and let it time out
25*4882a593Smuzhiyun */
reset_cpu(ulong ignored)26*4882a593Smuzhiyun void reset_cpu(ulong ignored)
27*4882a593Smuzhiyun {
28*4882a593Smuzhiyun struct wdog_regs *regs = (struct wdog_regs *)IMX_WDT_BASE;
29*4882a593Smuzhiyun /* Disable watchdog and set Time-Out field to 0 */
30*4882a593Smuzhiyun writew(0, ®s->wcr);
31*4882a593Smuzhiyun
32*4882a593Smuzhiyun /* Write Service Sequence */
33*4882a593Smuzhiyun writew(WSR_UNLOCK1, ®s->wsr);
34*4882a593Smuzhiyun writew(WSR_UNLOCK2, ®s->wsr);
35*4882a593Smuzhiyun
36*4882a593Smuzhiyun /* Enable watchdog */
37*4882a593Smuzhiyun writew(WCR_WDE, ®s->wcr);
38*4882a593Smuzhiyun
39*4882a593Smuzhiyun while (1) ;
40*4882a593Smuzhiyun }
41