blob: 131399c9e26fcb2a187ce01a85d2ae412126f319 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
|
/*
* (C) Copyright 2001
* Erik Theisen, Wave 7 Optics, etheisen@mindspring.com.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
/*
* W7O board level hardware watchdog.
*/
#include <common.h>
#include <config.h>
#ifdef CONFIG_HW_WATCHDOG
#include <watchdog.h>
void hw_watchdog_reset(void)
{
volatile ushort *hwd = (ushort *)(CONFIG_SYS_W7O_EBC_PB7CR & 0xfff00000);
/*
* Read the LMG's hwd register and toggle the
* watchdog bit to reset it. On the LMC, just
* reading it is enough, but toggling the bit
* doen't hurt either.
*/
*hwd = *hwd ^ 0x8000;
} /* hw_watchdog_reset() */
#endif /* CONFIG_HW_WATCHDOG */
|
