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