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
29extern int goldfish_timer_init(int irq, void __iomem *base);
30
31#endif /* _CLOCKSOURCE_TIMER_GOLDFISH_H */
32