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
48
49
50
51
52
|
/*
*
* This file is part of the coreboot project.
*
* Copyright (c) 2014, The Linux Foundation. All rights reserved.
* Copyright 2014 Google Inc.
*
* 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; version 2 of the License.
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <console/console.h>
#include <soc/iomap.h>
#include <reset.h>
/* Watchdog bite time set to default reset value */
#define RESET_WDT_BITE_TIME 0x31F3
/* Watchdog bark time value is kept larger than the watchdog timeout
* of 0x31F3, effectively disabling the watchdog bark interrupt
*/
#define RESET_WDT_BARK_TIME (5 * RESET_WDT_BITE_TIME)
static void wdog_reset(void)
{
printk(BIOS_DEBUG, "\nResetting with watchdog!\n");
writel(0, APCS_WDT0_EN);
writel(1, APCS_WDT0_RST);
writel(RESET_WDT_BARK_TIME, APCS_WDT0_BARK_TIME);
writel(RESET_WDT_BITE_TIME, APCS_WDT0_BITE_TIME);
writel(1, APCS_WDT0_EN);
writel(1, APCS_WDT0_CPU0_WDOG_EXPIRED_ENABLE);
for (;;)
;
}
void hard_reset(void)
{
wdog_reset();
}
|
