xref: /openbmc/qemu/include/hw/timer/arm_mptimer.h (revision a719a27c)
1 /*
2  * Private peripheral timer/watchdog blocks for ARM 11MPCore and A9MP
3  *
4  * Copyright (c) 2006-2007 CodeSourcery.
5  * Copyright (c) 2011 Linaro Limited
6  * Written by Paul Brook, Peter Maydell
7  *
8  * This program is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU General Public License
10  * as published by the Free Software Foundation; either version
11  * 2 of the License, or (at your option) any later version.
12  *
13  * This program is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16  * GNU General Public License for more details.
17  *
18  * You should have received a copy of the GNU General Public License along
19  * with this program; if not, see <http://www.gnu.org/licenses/>.
20  */
21 #ifndef HW_TIMER_ARM_MPTIMER_H
22 #define HW_TIMER_ARM_MPTIMER_H
23 
24 #include "hw/sysbus.h"
25 
26 #define ARM_MPTIMER_MAX_CPUS 4
27 
28 /* State of a single timer or watchdog block */
29 typedef struct {
30     uint32_t count;
31     uint32_t load;
32     uint32_t control;
33     uint32_t status;
34     int64_t tick;
35     QEMUTimer *timer;
36     qemu_irq irq;
37     MemoryRegion iomem;
38 } TimerBlock;
39 
40 #define TYPE_ARM_MPTIMER "arm_mptimer"
41 #define ARM_MPTIMER(obj) \
42     OBJECT_CHECK(ARMMPTimerState, (obj), TYPE_ARM_MPTIMER)
43 
44 typedef struct {
45     /*< private >*/
46     SysBusDevice parent_obj;
47     /*< public >*/
48 
49     uint32_t num_cpu;
50     TimerBlock timerblock[ARM_MPTIMER_MAX_CPUS];
51     MemoryRegion iomem;
52 } ARMMPTimerState;
53 
54 #endif
55