WIP: merge_config
[platform/kernel/linux-starfive.git] / include / clocksource / timer-goldfish.h
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 */