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31 lines
1007 B
31 lines
1007 B
/* 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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