forked from Minki/linux
1002148899
dw_apb_timer_init used to search the devicetree for matching timer devices, making calls to it from board files necessary. Change the dw_apb_timer_init to work with CLOCKSOURCE_OF_DECLARE. With this change the function gets called once for each timer node and tracks these number of calls to attach clockevent and clocksource devices to the nodes. Also remove the calls to dw_apb_timer_init from all previous users, as clocksource_of_init is the default for init_time now. Tested on the upcoming rk3066 code. Signed-off-by: Heiko Stuebner <heiko@sntech.de> Acked-by: Rob Herring <rob.herring@calxeda.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Jamie Iles <jamie@jamieiles.com> Acked-by: Dinh Nguyen <dinguyen@altera.com>
57 lines
1.8 KiB
C
57 lines
1.8 KiB
C
/*
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* (C) Copyright 2009 Intel Corporation
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* Author: Jacob Pan (jacob.jun.pan@intel.com)
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*
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* Shared with ARM platforms, Jamie Iles, Picochip 2011
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* Support for the Synopsys DesignWare APB Timers.
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*/
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#ifndef __DW_APB_TIMER_H__
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#define __DW_APB_TIMER_H__
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#include <linux/clockchips.h>
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#include <linux/clocksource.h>
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#include <linux/interrupt.h>
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#define APBTMRS_REG_SIZE 0x14
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struct dw_apb_timer {
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void __iomem *base;
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unsigned long freq;
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int irq;
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};
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struct dw_apb_clock_event_device {
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struct clock_event_device ced;
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struct dw_apb_timer timer;
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struct irqaction irqaction;
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void (*eoi)(struct dw_apb_timer *);
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};
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struct dw_apb_clocksource {
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struct dw_apb_timer timer;
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struct clocksource cs;
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};
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void dw_apb_clockevent_register(struct dw_apb_clock_event_device *dw_ced);
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void dw_apb_clockevent_pause(struct dw_apb_clock_event_device *dw_ced);
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void dw_apb_clockevent_resume(struct dw_apb_clock_event_device *dw_ced);
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void dw_apb_clockevent_stop(struct dw_apb_clock_event_device *dw_ced);
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struct dw_apb_clock_event_device *
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dw_apb_clockevent_init(int cpu, const char *name, unsigned rating,
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void __iomem *base, int irq, unsigned long freq);
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struct dw_apb_clocksource *
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dw_apb_clocksource_init(unsigned rating, const char *name, void __iomem *base,
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unsigned long freq);
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void dw_apb_clocksource_register(struct dw_apb_clocksource *dw_cs);
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void dw_apb_clocksource_start(struct dw_apb_clocksource *dw_cs);
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cycle_t dw_apb_clocksource_read(struct dw_apb_clocksource *dw_cs);
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void dw_apb_clocksource_unregister(struct dw_apb_clocksource *dw_cs);
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#endif /* __DW_APB_TIMER_H__ */
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