1/*
2 * (C) Copyright 2009 Intel Corporation
3 * Author: Jacob Pan (jacob.jun.pan@intel.com)
4 *
5 * Shared with ARM platforms, Jamie Iles, Picochip 2011
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 *
11 * Support for the Synopsys DesignWare APB Timers.
12 */
13#ifndef __DW_APB_TIMER_H__
14#define __DW_APB_TIMER_H__
15
16#include <linux/clockchips.h>
17#include <linux/clocksource.h>
18#include <linux/interrupt.h>
19
20#define APBTMRS_REG_SIZE 0x14
21
22struct dw_apb_timer {
23 void __iomem *base;
24 unsigned long freq;
25 int irq;
26};
27
28struct dw_apb_clock_event_device {
29 struct clock_event_device ced;
30 struct dw_apb_timer timer;
31 struct irqaction irqaction;
32 void (*eoi)(struct dw_apb_timer *);
33};
34
35struct dw_apb_clocksource {
36 struct dw_apb_timer timer;
37 struct clocksource cs;
38};
39
40void dw_apb_clockevent_register(struct dw_apb_clock_event_device *dw_ced);
41void dw_apb_clockevent_pause(struct dw_apb_clock_event_device *dw_ced);
42void dw_apb_clockevent_resume(struct dw_apb_clock_event_device *dw_ced);
43void dw_apb_clockevent_stop(struct dw_apb_clock_event_device *dw_ced);
44
45struct dw_apb_clock_event_device *
46dw_apb_clockevent_init(int cpu, const char *name, unsigned rating,
47 void __iomem *base, int irq, unsigned long freq);
48struct dw_apb_clocksource *
49dw_apb_clocksource_init(unsigned rating, const char *name, void __iomem *base,
50 unsigned long freq);
51void dw_apb_clocksource_register(struct dw_apb_clocksource *dw_cs);
52void dw_apb_clocksource_start(struct dw_apb_clocksource *dw_cs);
53u64 dw_apb_clocksource_read(struct dw_apb_clocksource *dw_cs);
54
55#endif /* __DW_APB_TIMER_H__ */
56