xref: /openbmc/qemu/include/hw/rtc/pl031.h (revision 8fa3b702)
1 /*
2  * ARM AMBA PrimeCell PL031 RTC
3  *
4  * Copyright (c) 2007 CodeSourcery
5  *
6  * This file is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License version 2 as
8  * published by the Free Software Foundation.
9  *
10  * Contributions after 2012-01-13 are licensed under the terms of the
11  * GNU GPL, version 2 or (at your option) any later version.
12  */
13 
14 #ifndef HW_RTC_PL031_H
15 #define HW_RTC_PL031_H
16 
17 #include "hw/sysbus.h"
18 #include "qemu/timer.h"
19 #include "qom/object.h"
20 
21 #define TYPE_PL031 "pl031"
22 typedef struct PL031State PL031State;
23 DECLARE_INSTANCE_CHECKER(PL031State, PL031,
24                          TYPE_PL031)
25 
26 struct PL031State {
27     SysBusDevice parent_obj;
28 
29     MemoryRegion iomem;
30     QEMUTimer *timer;
31     qemu_irq irq;
32 
33     /*
34      * Needed to preserve the tick_count across migration, even if the
35      * absolute value of the rtc_clock is different on the source and
36      * destination.
37      */
38     uint32_t tick_offset_vmstate;
39     uint32_t tick_offset;
40     bool tick_offset_migrated;
41     bool migrate_tick_offset;
42 
43     uint32_t mr;
44     uint32_t lr;
45     uint32_t cr;
46     uint32_t im;
47     uint32_t is;
48 };
49 
50 #endif
51