32 lines
1007 B
C
32 lines
1007 B
C
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/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* goldfish-timer clocksource
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* Registers definition for the goldfish-timer device
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*/
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#ifndef _CLOCKSOURCE_TIMER_GOLDFISH_H
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#define _CLOCKSOURCE_TIMER_GOLDFISH_H
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/*
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* TIMER_TIME_LOW get low bits of current time and update TIMER_TIME_HIGH
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* TIMER_TIME_HIGH get high bits of time at last TIMER_TIME_LOW read
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* TIMER_ALARM_LOW set low bits of alarm and activate it
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* TIMER_ALARM_HIGH set high bits of next alarm
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* TIMER_IRQ_ENABLED enable alarm interrupt
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* TIMER_CLEAR_ALARM disarm an existing alarm
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* TIMER_ALARM_STATUS alarm status (running or not)
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* TIMER_CLEAR_INTERRUPT clear interrupt
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*/
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#define TIMER_TIME_LOW 0x00
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#define TIMER_TIME_HIGH 0x04
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#define TIMER_ALARM_LOW 0x08
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#define TIMER_ALARM_HIGH 0x0c
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#define TIMER_IRQ_ENABLED 0x10
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#define TIMER_CLEAR_ALARM 0x14
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#define TIMER_ALARM_STATUS 0x18
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#define TIMER_CLEAR_INTERRUPT 0x1c
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extern int goldfish_timer_init(int irq, void __iomem *base);
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#endif /* _CLOCKSOURCE_TIMER_GOLDFISH_H */
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