1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * arch/sh/kernel/time.c 4 * 5 * Copyright (C) 1999 Tetsuya Okada & Niibe Yutaka 6 * Copyright (C) 2000 Philipp Rumpf <prumpf@tux.org> 7 * Copyright (C) 2002 - 2009 Paul Mundt 8 * Copyright (C) 2002 M. R. Brown <mrbrown@linux-sh.org> 9 */ 10 #include <linux/kernel.h> 11 #include <linux/init.h> 12 #include <linux/profile.h> 13 #include <linux/timex.h> 14 #include <linux/sched.h> 15 #include <linux/clockchips.h> 16 #include <linux/platform_device.h> 17 #include <linux/smp.h> 18 #include <linux/rtc.h> 19 #include <asm/clock.h> 20 #include <asm/rtc.h> 21 #include <asm/platform_early.h> 22 sh_late_time_init(void)23static void __init sh_late_time_init(void) 24 { 25 /* 26 * Make sure all compiled-in early timers register themselves. 27 * 28 * Run probe() for two "earlytimer" devices, these will be the 29 * clockevents and clocksource devices respectively. In the event 30 * that only a clockevents device is available, we -ENODEV on the 31 * clocksource and the jiffies clocksource is used transparently 32 * instead. No error handling is necessary here. 33 */ 34 sh_early_platform_driver_register_all("earlytimer"); 35 sh_early_platform_driver_probe("earlytimer", 2, 0); 36 } 37 time_init(void)38void __init time_init(void) 39 { 40 timer_probe(); 41 42 clk_init(); 43 44 late_time_init = sh_late_time_init; 45 } 46