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1/* SPDX-License-Identifier: GPL-2.0-only */
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 *
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
19struct dw_apb_timer {
20 void __iomem *base;
21 unsigned long freq;
22 int irq;
23};
24
25struct dw_apb_clock_event_device {
26 struct clock_event_device ced;
27 struct dw_apb_timer timer;
28 void (*eoi)(struct dw_apb_timer *);
29};
30
31struct dw_apb_clocksource {
32 struct dw_apb_timer timer;
33 struct clocksource cs;
34};
35
36void dw_apb_clockevent_register(struct dw_apb_clock_event_device *dw_ced);
37
38struct dw_apb_clock_event_device *
39dw_apb_clockevent_init(int cpu, const char *name, unsigned rating,
40 void __iomem *base, int irq, unsigned long freq);
41struct dw_apb_clocksource *
42dw_apb_clocksource_init(unsigned rating, const char *name, void __iomem *base,
43 unsigned long freq);
44void dw_apb_clocksource_register(struct dw_apb_clocksource *dw_cs);
45void dw_apb_clocksource_start(struct dw_apb_clocksource *dw_cs);
46u64 dw_apb_clocksource_read(struct dw_apb_clocksource *dw_cs);
47
48#endif /* __DW_APB_TIMER_H__ */