| 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 | |
| 23 | static 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 | |
| 38 | void __init time_init(void) |
| 39 | { |
| 40 | timer_probe(); |
| 41 | |
| 42 | clk_init(); |
| 43 | |
| 44 | late_time_init = sh_late_time_init; |
| 45 | } |