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 mn10300_read(struct clocksource * cs)16static 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 init_clocksource(void)29int __init init_clocksource(void) 30 { 31 startup_timestamp_counter(); 32 clocksource_register_hz(&clocksource_mn10300, MN10300_TSCCLK); 33 return 0; 34 } 35