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d2912cb1 | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
06c3df49 JI |
2 | /* |
3 | * (C) Copyright 2009 Intel Corporation | |
4 | * Author: Jacob Pan (jacob.jun.pan@intel.com) | |
5 | * | |
6 | * Shared with ARM platforms, Jamie Iles, Picochip 2011 | |
7 | * | |
06c3df49 JI |
8 | * Support for the Synopsys DesignWare APB Timers. |
9 | */ | |
10 | #ifndef __DW_APB_TIMER_H__ | |
11 | #define __DW_APB_TIMER_H__ | |
12 | ||
13 | #include <linux/clockchips.h> | |
14 | #include <linux/clocksource.h> | |
15 | #include <linux/interrupt.h> | |
16 | ||
17 | #define APBTMRS_REG_SIZE 0x14 | |
18 | ||
19 | struct dw_apb_timer { | |
20 | void __iomem *base; | |
21 | unsigned long freq; | |
22 | int irq; | |
23 | }; | |
24 | ||
25 | struct dw_apb_clock_event_device { | |
26 | struct clock_event_device ced; | |
27 | struct dw_apb_timer timer; | |
28 | struct irqaction irqaction; | |
29 | void (*eoi)(struct dw_apb_timer *); | |
30 | }; | |
31 | ||
32 | struct dw_apb_clocksource { | |
33 | struct dw_apb_timer timer; | |
34 | struct clocksource cs; | |
35 | }; | |
36 | ||
37 | void dw_apb_clockevent_register(struct dw_apb_clock_event_device *dw_ced); | |
38 | void dw_apb_clockevent_pause(struct dw_apb_clock_event_device *dw_ced); | |
39 | void dw_apb_clockevent_resume(struct dw_apb_clock_event_device *dw_ced); | |
40 | void dw_apb_clockevent_stop(struct dw_apb_clock_event_device *dw_ced); | |
41 | ||
42 | struct dw_apb_clock_event_device * | |
43 | dw_apb_clockevent_init(int cpu, const char *name, unsigned rating, | |
44 | void __iomem *base, int irq, unsigned long freq); | |
45 | struct dw_apb_clocksource * | |
a1330228 | 46 | dw_apb_clocksource_init(unsigned rating, const char *name, void __iomem *base, |
06c3df49 JI |
47 | unsigned long freq); |
48 | void dw_apb_clocksource_register(struct dw_apb_clocksource *dw_cs); | |
49 | void dw_apb_clocksource_start(struct dw_apb_clocksource *dw_cs); | |
a5a1d1c2 | 50 | u64 dw_apb_clocksource_read(struct dw_apb_clocksource *dw_cs); |
06c3df49 JI |
51 | |
52 | #endif /* __DW_APB_TIMER_H__ */ |