[mirror_ubuntu-zesty-kernel.git] / arch / mn10300 / kernel / csrc-mn10300.c

/* MN10300 clocksource
 *
 * Copyright (C) 2010 Red Hat, Inc. All Rights Reserved.
 * Written by Mark Salter (msalter@redhat.com)
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public Licence
 * as published by the Free Software Foundation; either version
 * 2 of the Licence, or (at your option) any later version.
 */
#include <linux/clocksource.h>
#include <linux/init.h>
#include <asm/timex.h>
#include "internal.h"

static cycle_t mn10300_read(struct clocksource *cs)
{
	return read_timestamp_counter();
}

static struct clocksource clocksource_mn10300 = {
	.name	= "TSC",
	.rating	= 200,
	.read	= mn10300_read,
	.mask	= CLOCKSOURCE_MASK(32),
	.flags	= CLOCK_SOURCE_IS_CONTINUOUS,
};

int __init init_clocksource(void)
{
	startup_timestamp_counter();
	clocksource_register_hz(&clocksource_mn10300, MN10300_TSCCLK);
	return 0;
}
Commit	Line	Data
730c1fad MS	1	/* MN10300 clocksource
	2	*
	3	* Copyright (C) 2010 Red Hat, Inc. All Rights Reserved.
	4	* Written by Mark Salter (msalter@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	#include <linux/clocksource.h>
	12	#include <linux/init.h>
	13	#include <asm/timex.h>
	14	#include "internal.h"
	15
	16	static cycle_t mn10300_read(struct clocksource *cs)
	17	{
	18	return read_timestamp_counter();
	19	}
	20
	21	static struct clocksource clocksource_mn10300 = {
	22	.name = "TSC",
	23	.rating = 200,
	24	.read = mn10300_read,
	25	.mask = CLOCKSOURCE_MASK(32),
	26	.flags = CLOCK_SOURCE_IS_CONTINUOUS,
	27	};
	28
	29	int __init init_clocksource(void)
	30	{
	31	startup_timestamp_counter();
817890ba	32	clocksource_register_hz(&clocksource_mn10300, MN10300_TSCCLK);
730c1fad MS	33	return 0;
730c1fad MS	34	}