92 lines
2.3 KiB
C
92 lines
2.3 KiB
C
|
/*
|
||
|
|
* 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>
|
||
|
|
#include <linux/spinlock.h>
|
||
|
|
#include <linux/clockchips.h>
|
||
|
|
#include <linux/clocksource.h>
|
||
|
|
|
||
|
|
extern spinlock_t rtc_lock;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* RTC ops. By default, they point to weak no-op RTC functions.
|
||
|
|
* 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
|
||
|
|
* to be set. Used by RTC sync-up.
|
||
|
|
*/
|
||
|
|
extern int rtc_mips_set_time(unsigned long);
|
||
|
|
extern int rtc_mips_set_mmss(unsigned long);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* board specific routines required by time_init().
|
||
|
|
*/
|
||
|
|
extern void plat_time_init(void);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* mips_hpt_frequency - must be set if you intend to use an R4k-compatible
|
||
|
|
* counter as a timer interrupt source.
|
||
|
|
*/
|
||
|
|
extern unsigned int mips_hpt_frequency;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* The performance counter IRQ on MIPS is a close relative to the timer IRQ
|
||
|
|
* so it lives here.
|
||
|
|
*/
|
||
|
|
extern int (*perf_irq)(void);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Initialize the calling CPU's compare interrupt as clockevent device
|
||
|
|
*/
|
||
|
|
#ifdef CONFIG_CEVT_R4K_LIB
|
||
|
|
extern unsigned int __weak get_c0_compare_int(void);
|
||
|
|
extern int r4k_clockevent_init(void);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
static inline int mips_clockevent_init(void)
|
||
|
|
{
|
||
|
|
#ifdef CONFIG_MIPS_MT_SMTC
|
||
|
|
extern int smtc_clockevent_init(void);
|
||
|
|
|
||
|
|
return smtc_clockevent_init();
|
||
|
|
#elif defined(CONFIG_CEVT_R4K)
|
||
|
|
return r4k_clockevent_init();
|
||
|
|
#else
|
||
|
|
return -ENXIO;
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Initialize the count register as a clocksource
|
||
|
|
*/
|
||
|
|
#ifdef CONFIG_CSRC_R4K_LIB
|
||
|
|
extern int init_r4k_clocksource(void);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
static inline int init_mips_clocksource(void)
|
||
|
|
{
|
||
|
|
#ifdef CONFIG_CSRC_R4K
|
||
|
|
return init_r4k_clocksource();
|
||
|
|
#else
|
||
|
|
return 0;
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
extern void clocksource_set_clock(struct clocksource *cs, unsigned int clock);
|
||
|
|
extern void clockevent_set_clock(struct clock_event_device *cd,
|
||
|
|
unsigned int clock);
|
||
|
|
|
||
|
|
#endif /* _ASM_TIME_H */
|