| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
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| 2 | /* |
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| 3 | * goldfish-timer clocksource |
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| 4 | * Registers definition for the goldfish-timer device |
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| 5 | */ |
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| 6 | |
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| 7 | #ifndef _CLOCKSOURCE_TIMER_GOLDFISH_H |
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| 8 | #define _CLOCKSOURCE_TIMER_GOLDFISH_H |
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| 9 | |
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| 10 | /* |
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| 11 | * TIMER_TIME_LOW get low bits of current time and update TIMER_TIME_HIGH |
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| 12 | * TIMER_TIME_HIGH get high bits of time at last TIMER_TIME_LOW read |
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| 13 | * TIMER_ALARM_LOW set low bits of alarm and activate it |
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| 14 | * TIMER_ALARM_HIGH set high bits of next alarm |
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| 15 | * TIMER_IRQ_ENABLED enable alarm interrupt |
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| 16 | * TIMER_CLEAR_ALARM disarm an existing alarm |
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| 17 | * TIMER_ALARM_STATUS alarm status (running or not) |
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| 18 | * TIMER_CLEAR_INTERRUPT clear interrupt |
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| 19 | */ |
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| 20 | #define TIMER_TIME_LOW 0x00 |
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| 21 | #define TIMER_TIME_HIGH 0x04 |
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| 22 | #define TIMER_ALARM_LOW 0x08 |
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| 23 | #define TIMER_ALARM_HIGH 0x0c |
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| 24 | #define TIMER_IRQ_ENABLED 0x10 |
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| 25 | #define TIMER_CLEAR_ALARM 0x14 |
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| 26 | #define TIMER_ALARM_STATUS 0x18 |
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| 27 | #define TIMER_CLEAR_INTERRUPT 0x1c |
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| 28 | |
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| 29 | extern int goldfish_timer_init(int irq, void __iomem *base); |
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| 30 | |
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| 31 | #endif /* _CLOCKSOURCE_TIMER_GOLDFISH_H */ |
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| 32 | |
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