| /* SPDX-License-Identifier: GPL-2.0-only */ |
| /* |
| * (C) Copyright 2009 Intel Corporation |
| * Author: Jacob Pan (jacob.jun.pan@intel.com) |
| * |
| * Shared with ARM platforms, Jamie Iles, Picochip 2011 |
| * |
| * Support for the Synopsys DesignWare APB Timers. |
| */ |
| #ifndef __DW_APB_TIMER_H__ |
| #define __DW_APB_TIMER_H__ |
| |
| #include <linux/clockchips.h> |
| #include <linux/clocksource.h> |
| #include <linux/interrupt.h> |
| |
| #define APBTMRS_REG_SIZE 0x14 |
| |
| struct dw_apb_timer { |
| void __iomem *base; |
| unsigned long freq; |
| int irq; |
| }; |
| |
| struct dw_apb_clock_event_device { |
| struct clock_event_device ced; |
| struct dw_apb_timer timer; |
| void (*eoi)(struct dw_apb_timer *); |
| }; |
| |
| struct dw_apb_clocksource { |
| struct dw_apb_timer timer; |
| struct clocksource cs; |
| }; |
| |
| void dw_apb_clockevent_register(struct dw_apb_clock_event_device *dw_ced); |
| void dw_apb_clockevent_pause(struct dw_apb_clock_event_device *dw_ced); |
| void dw_apb_clockevent_resume(struct dw_apb_clock_event_device *dw_ced); |
| void dw_apb_clockevent_stop(struct dw_apb_clock_event_device *dw_ced); |
| |
| struct dw_apb_clock_event_device * |
| dw_apb_clockevent_init(int cpu, const char *name, unsigned rating, |
| void __iomem *base, int irq, unsigned long freq); |
| struct dw_apb_clocksource * |
| dw_apb_clocksource_init(unsigned rating, const char *name, void __iomem *base, |
| unsigned long freq); |
| void dw_apb_clocksource_register(struct dw_apb_clocksource *dw_cs); |
| void dw_apb_clocksource_start(struct dw_apb_clocksource *dw_cs); |
| u64 dw_apb_clocksource_read(struct dw_apb_clocksource *dw_cs); |
| |
| #endif /* __DW_APB_TIMER_H__ */ |