| Jamie Iles | 06c3df4 | 2011-06-06 12:43:07 +0100 | [diff] [blame] | 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 * |
| 49 | dw_apb_clocksource_init(unsigned rating, 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); |
| 55 | |
| 56 | #endif /* __DW_APB_TIMER_H__ */ |