2005-04-16 16:20:36 -06:00
|
|
|
/*
|
|
|
|
* Copyright (C) 2001, 2002, MontaVista Software Inc.
|
|
|
|
* Author: Jun Sun, jsun@mvista.com or jsun@junsun.net
|
|
|
|
* Copyright (c) 2003 Maciej W. Rozycki
|
|
|
|
*
|
|
|
|
* include/asm-mips/time.h
|
|
|
|
* header file for the new style time.c file and time services.
|
|
|
|
*
|
|
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
|
|
* under the terms of the GNU General Public License as published by the
|
|
|
|
* Free Software Foundation; either version 2 of the License, or (at your
|
|
|
|
* option) any later version.
|
|
|
|
*/
|
|
|
|
#ifndef _ASM_TIME_H
|
|
|
|
#define _ASM_TIME_H
|
|
|
|
|
|
|
|
#include <linux/rtc.h>
|
2005-11-02 09:01:15 -07:00
|
|
|
#include <linux/spinlock.h>
|
2007-10-19 01:13:08 -06:00
|
|
|
#include <linux/clockchips.h>
|
2006-11-11 08:10:28 -07:00
|
|
|
#include <linux/clocksource.h>
|
2005-11-02 09:01:15 -07:00
|
|
|
|
|
|
|
extern spinlock_t rtc_lock;
|
2005-04-16 16:20:36 -06:00
|
|
|
|
|
|
|
/*
|
2007-10-11 16:46:08 -06:00
|
|
|
* RTC ops. By default, they point to weak no-op RTC functions.
|
2006-03-27 02:16:33 -07:00
|
|
|
* rtc_mips_set_time - reverse the above translation and set time to RTC.
|
|
|
|
* rtc_mips_set_mmss - similar to rtc_set_time, but only min and sec need
|
2005-04-16 16:20:36 -06:00
|
|
|
* to be set. Used by RTC sync-up.
|
|
|
|
*/
|
2007-10-11 16:46:08 -06:00
|
|
|
extern int rtc_mips_set_time(unsigned long);
|
|
|
|
extern int rtc_mips_set_mmss(unsigned long);
|
2005-04-16 16:20:36 -06:00
|
|
|
|
|
|
|
/*
|
|
|
|
* board specific routines required by time_init().
|
|
|
|
*/
|
2007-10-11 16:46:08 -06:00
|
|
|
extern void plat_time_init(void);
|
2005-04-16 16:20:36 -06:00
|
|
|
|
|
|
|
/*
|
|
|
|
* mips_hpt_frequency - must be set if you intend to use an R4k-compatible
|
2007-12-09 05:19:36 -07:00
|
|
|
* counter as a timer interrupt source.
|
2005-04-16 16:20:36 -06:00
|
|
|
*/
|
|
|
|
extern unsigned int mips_hpt_frequency;
|
|
|
|
|
2007-10-11 16:46:09 -06:00
|
|
|
/*
|
|
|
|
* The performance counter IRQ on MIPS is a close relative to the timer IRQ
|
|
|
|
* so it lives here.
|
|
|
|
*/
|
|
|
|
extern int (*perf_irq)(void);
|
|
|
|
|
2007-10-11 16:46:09 -06:00
|
|
|
/*
|
|
|
|
* Initialize the calling CPU's compare interrupt as clockevent device
|
|
|
|
*/
|
2007-10-18 10:48:11 -06:00
|
|
|
#ifdef CONFIG_CEVT_R4K
|
2007-11-21 09:39:44 -07:00
|
|
|
extern int mips_clockevent_init(void);
|
2007-10-29 08:23:43 -06:00
|
|
|
extern unsigned int __weak get_c0_compare_int(void);
|
2007-10-18 10:48:11 -06:00
|
|
|
#else
|
2007-11-21 09:39:44 -07:00
|
|
|
static inline int mips_clockevent_init(void)
|
2007-10-18 10:48:11 -06:00
|
|
|
{
|
2007-11-21 09:39:44 -07:00
|
|
|
return -ENXIO;
|
2007-10-18 10:48:11 -06:00
|
|
|
}
|
|
|
|
#endif
|
2007-10-11 16:46:09 -06:00
|
|
|
|
2007-11-24 15:33:28 -07:00
|
|
|
/*
|
|
|
|
* Initialize the count register as a clocksource
|
|
|
|
*/
|
|
|
|
#ifdef CONFIG_CEVT_R4K
|
2008-03-12 07:58:10 -06:00
|
|
|
extern int init_mips_clocksource(void);
|
2007-11-24 15:33:28 -07:00
|
|
|
#else
|
2008-03-12 07:58:10 -06:00
|
|
|
static inline int init_mips_clocksource(void)
|
2007-11-24 15:33:28 -07:00
|
|
|
{
|
2008-03-12 07:58:10 -06:00
|
|
|
return 0;
|
2007-11-24 15:33:28 -07:00
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
2007-10-19 01:13:08 -06:00
|
|
|
extern void clocksource_set_clock(struct clocksource *cs, unsigned int clock);
|
|
|
|
extern void clockevent_set_clock(struct clock_event_device *cd,
|
|
|
|
unsigned int clock);
|
|
|
|
|
2005-04-16 16:20:36 -06:00
|
|
|
#endif /* _ASM_TIME_H */
|