arm64: dts: Revert "specify console via command line"
[linux/fpc-iii.git] / arch / arm / mach-footbridge / isa-timer.c
blob82f45591fb2cb7ef5e5eb949fe17f356fa342833
1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * linux/arch/arm/mach-footbridge/isa-timer.c
5 * Copyright (C) 1998 Russell King.
6 * Copyright (C) 1998 Phil Blundell
7 */
8 #include <linux/clockchips.h>
9 #include <linux/i8253.h>
10 #include <linux/init.h>
11 #include <linux/interrupt.h>
12 #include <linux/irq.h>
13 #include <linux/spinlock.h>
14 #include <linux/timex.h>
16 #include <asm/irq.h>
17 #include <asm/mach/time.h>
19 #include "common.h"
21 static irqreturn_t pit_timer_interrupt(int irq, void *dev_id)
23 struct clock_event_device *ce = dev_id;
24 ce->event_handler(ce);
25 return IRQ_HANDLED;
28 static struct irqaction pit_timer_irq = {
29 .name = "pit",
30 .handler = pit_timer_interrupt,
31 .flags = IRQF_TIMER | IRQF_IRQPOLL,
32 .dev_id = &i8253_clockevent,
35 void __init isa_timer_init(void)
37 clocksource_i8253_init();
39 setup_irq(i8253_clockevent.irq, &pit_timer_irq);
40 clockevent_i8253_init(false);