Linux 3.9-rc4
[linux-2.6/cjktty.git] / include / linux / dw_apb_timer.h
blobdd755ce2a5ebdb867b959f6efc21b696500c5732
1 /*
2 * (C) Copyright 2009 Intel Corporation
3 * Author: Jacob Pan (jacob.jun.pan@intel.com)
5 * Shared with ARM platforms, Jamie Iles, Picochip 2011
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.
11 * Support for the Synopsys DesignWare APB Timers.
13 #ifndef __DW_APB_TIMER_H__
14 #define __DW_APB_TIMER_H__
16 #include <linux/clockchips.h>
17 #include <linux/clocksource.h>
18 #include <linux/interrupt.h>
20 #define APBTMRS_REG_SIZE 0x14
22 struct dw_apb_timer {
23 void __iomem *base;
24 unsigned long freq;
25 int irq;
28 struct 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 *);
35 struct dw_apb_clocksource {
36 struct dw_apb_timer timer;
37 struct clocksource cs;
40 void dw_apb_clockevent_register(struct dw_apb_clock_event_device *dw_ced);
41 void dw_apb_clockevent_pause(struct dw_apb_clock_event_device *dw_ced);
42 void dw_apb_clockevent_resume(struct dw_apb_clock_event_device *dw_ced);
43 void dw_apb_clockevent_stop(struct dw_apb_clock_event_device *dw_ced);
45 struct dw_apb_clock_event_device *
46 dw_apb_clockevent_init(int cpu, const char *name, unsigned rating,
47 void __iomem *base, int irq, unsigned long freq);
48 struct dw_apb_clocksource *
49 dw_apb_clocksource_init(unsigned rating, const char *name, void __iomem *base,
50 unsigned long freq);
51 void dw_apb_clocksource_register(struct dw_apb_clocksource *dw_cs);
52 void dw_apb_clocksource_start(struct dw_apb_clocksource *dw_cs);
53 cycle_t dw_apb_clocksource_read(struct dw_apb_clocksource *dw_cs);
54 void dw_apb_clocksource_unregister(struct dw_apb_clocksource *dw_cs);
56 extern void dw_apb_timer_init(void);
57 #endif /* __DW_APB_TIMER_H__ */