2
* Intel_SCU 0.2: An Intel SCU IOH Based Watchdog Device
6
* Copyright (C) 2009-2010 Intel Corporation. All rights reserved.
8
* This program is free software; you can redistribute it and/or
9
* modify it under the terms of version 2 of the GNU General
10
* Public License as published by the Free Software Foundation.
12
* This program is distributed in the hope that it will be
13
* useful, but WITHOUT ANY WARRANTY; without even the implied
14
* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
15
* PURPOSE. See the GNU General Public License for more details.
16
* You should have received a copy of the GNU General Public
17
* License along with this program; if not, write to the Free
18
* Software Foundation, Inc., 59 Temple Place - Suite 330,
19
* Boston, MA 02111-1307, USA.
20
* The full GNU General Public License is included in this
21
* distribution in the file called COPYING.
25
#ifndef __INTEL_SCU_WATCHDOG_H
26
#define __INTEL_SCU_WATCHDOG_H
28
#define PFX "Intel_SCU: "
31
/* minimum time between interrupts */
32
#define MIN_TIME_CYCLE 1
34
/* Time from warning to reboot is 2 seconds */
35
#define DEFAULT_SOFT_TO_HARD_MARGIN 2
39
#define DEFAULT_TIME 5
41
#define MAX_SOFT_TO_HARD_MARGIN (MAX_TIME-MIN_TIME_CYCLE)
43
/* Ajustment to clock tick frequency to make timing come out right */
44
#define FREQ_ADJUSTMENT 8
46
struct intel_scu_watchdog_dev {
53
u32 __iomem *timer_load_count_addr;
54
u32 __iomem *timer_current_value_addr;
55
u32 __iomem *timer_control_addr;
56
u32 __iomem *timer_clear_interrupt_addr;
57
u32 __iomem *timer_interrupt_status_addr;
58
struct sfi_timer_table_entry *timer_tbl_ptr;
59
struct notifier_block intel_scu_notifier;
60
struct miscdevice miscdev;
63
extern int sfi_mtimer_num;
65
/* extern struct sfi_timer_table_entry *sfi_get_mtmr(int hint); */
66
#endif /* __INTEL_SCU_WATCHDOG_H */