1 /* MN10300 Architecture time management specifications
2  *
3  * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
4  * Written by David Howells (dhowells@redhat.com)
5  *
6  * This program is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU General Public Licence
8  * as published by the Free Software Foundation; either version
9  * 2 of the Licence, or (at your option) any later version.
10  */
11 #ifndef _ASM_TIMEX_H
12 #define _ASM_TIMEX_H
13 
14 #include <asm/hardirq.h>
15 #include <unit/timex.h>
16 
17 #define TICK_SIZE (tick_nsec / 1000)
18 
19 #define CLOCK_TICK_RATE MN10300_JCCLK /* Underlying HZ */
20 
21 #ifdef __KERNEL__
22 
23 extern cycles_t cacheflush_time;
24 
get_cycles(void)25 static inline cycles_t get_cycles(void)
26 {
27 	return read_timestamp_counter();
28 }
29 
30 extern int init_clockevents(void);
31 extern int init_clocksource(void);
32 
setup_jiffies_interrupt(int irq,struct irqaction * action)33 static inline void setup_jiffies_interrupt(int irq,
34 					   struct irqaction *action)
35 {
36 	u16 tmp;
37 	setup_irq(irq, action);
38 	set_intr_level(irq, NUM2GxICR_LEVEL(CONFIG_TIMER_IRQ_LEVEL));
39 	GxICR(irq) |= GxICR_ENABLE | GxICR_DETECT | GxICR_REQUEST;
40 	tmp = GxICR(irq);
41 }
42 
43 #endif /* __KERNEL__ */
44 
45 #endif /* _ASM_TIMEX_H */
46