Merge remote-tracking branch 'remotes/vivier/tags/trivial-branch-for-6.2-pull-request...
[qemu.git] / include / hw / watchdog / wdt_aspeed.h
1 /*
2 * ASPEED Watchdog Controller
3 *
4 * Copyright (C) 2016-2017 IBM Corp.
5 *
6 * This code is licensed under the GPL version 2 or later. See the
7 * COPYING file in the top-level directory.
8 */
9
10 #ifndef WDT_ASPEED_H
11 #define WDT_ASPEED_H
12
13 #include "hw/misc/aspeed_scu.h"
14 #include "hw/sysbus.h"
15 #include "qom/object.h"
16
17 #define TYPE_ASPEED_WDT "aspeed.wdt"
18 OBJECT_DECLARE_TYPE(AspeedWDTState, AspeedWDTClass, ASPEED_WDT)
19 #define TYPE_ASPEED_2400_WDT TYPE_ASPEED_WDT "-ast2400"
20 #define TYPE_ASPEED_2500_WDT TYPE_ASPEED_WDT "-ast2500"
21 #define TYPE_ASPEED_2600_WDT TYPE_ASPEED_WDT "-ast2600"
22
23 #define ASPEED_WDT_REGS_MAX (0x20 / 4)
24
25 struct AspeedWDTState {
26 /*< private >*/
27 SysBusDevice parent_obj;
28 QEMUTimer *timer;
29
30 /*< public >*/
31 MemoryRegion iomem;
32 uint32_t regs[ASPEED_WDT_REGS_MAX];
33
34 AspeedSCUState *scu;
35 uint32_t pclk_freq;
36 };
37
38
39 struct AspeedWDTClass {
40 SysBusDeviceClass parent_class;
41
42 uint32_t offset;
43 uint32_t ext_pulse_width_mask;
44 uint32_t reset_ctrl_reg;
45 void (*reset_pulse)(AspeedWDTState *s, uint32_t property);
46 void (*wdt_reload)(AspeedWDTState *s);
47 };
48
49 #endif /* WDT_ASPEED_H */