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06c3df49 JI |
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 | ||
22 | struct dw_apb_timer { | |
23 | void __iomem *base; | |
24 | unsigned long freq; | |
25 | int irq; | |
26 | }; | |
27 | ||
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 *); | |
33 | }; | |
34 | ||
35 | struct dw_apb_clocksource { | |
36 | struct dw_apb_timer timer; | |
37 | struct clocksource cs; | |
38 | }; | |
39 | ||
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); | |
44 | ||
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 * | |
a1330228 | 49 | dw_apb_clocksource_init(unsigned rating, const char *name, void __iomem *base, |
06c3df49 JI |
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); | |
06c3df49 JI |
54 | |
55 | #endif /* __DW_APB_TIMER_H__ */ |