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Diffstat (limited to 'arch/mips/include/asm/time.h')
-rw-r--r-- | arch/mips/include/asm/time.h | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/arch/mips/include/asm/time.h b/arch/mips/include/asm/time.h new file mode 100644 index 000000000000..d3bd5c5aa2ec --- /dev/null +++ b/arch/mips/include/asm/time.h @@ -0,0 +1,79 @@ +/* + * 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 +extern int mips_clockevent_init(void); +extern unsigned int __weak get_c0_compare_int(void); +#else +static inline int mips_clockevent_init(void) +{ + return -ENXIO; +} +#endif + +/* + * Initialize the count register as a clocksource + */ +#ifdef CONFIG_CEVT_R4K +extern int init_mips_clocksource(void); +#else +static inline int init_mips_clocksource(void) +{ + 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 */ |