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Diffstat (limited to 'arch/mn10300/kernel/cevt-mn10300.c')
-rw-r--r--arch/mn10300/kernel/cevt-mn10300.c137
1 files changed, 0 insertions, 137 deletions
diff --git a/arch/mn10300/kernel/cevt-mn10300.c b/arch/mn10300/kernel/cevt-mn10300.c
deleted file mode 100644
index 2b21bbc9efa4..000000000000
--- a/arch/mn10300/kernel/cevt-mn10300.c
+++ /dev/null
@@ -1,137 +0,0 @@
-/* MN10300 clockevents
- *
- * 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/clockchips.h>
-#include <linux/interrupt.h>
-#include <linux/percpu.h>
-#include <linux/smp.h>
-#include <asm/timex.h>
-#include "internal.h"
-
-#ifdef CONFIG_SMP
-#if (CONFIG_NR_CPUS > 2) && !defined(CONFIG_GEENERIC_CLOCKEVENTS_BROADCAST)
-#error "This doesn't scale well! Need per-core local timers."
-#endif
-#else /* CONFIG_SMP */
-#define stop_jiffies_counter1()
-#define reload_jiffies_counter1(x)
-#define TMJC1IRQ TMJCIRQ
-#endif
-
-
-static int next_event(unsigned long delta,
- struct clock_event_device *evt)
-{
- unsigned int cpu = smp_processor_id();
-
- if (cpu == 0) {
- stop_jiffies_counter();
- reload_jiffies_counter(delta - 1);
- } else {
- stop_jiffies_counter1();
- reload_jiffies_counter1(delta - 1);
- }
- return 0;
-}
-
-static DEFINE_PER_CPU(struct clock_event_device, mn10300_clockevent_device);
-static DEFINE_PER_CPU(struct irqaction, timer_irq);
-
-static irqreturn_t timer_interrupt(int irq, void *dev_id)
-{
- struct clock_event_device *cd;
- unsigned int cpu = smp_processor_id();
-
- if (cpu == 0)
- stop_jiffies_counter();
- else
- stop_jiffies_counter1();
-
- cd = &per_cpu(mn10300_clockevent_device, cpu);
- cd->event_handler(cd);
-
- return IRQ_HANDLED;
-}
-
-static void event_handler(struct clock_event_device *dev)
-{
-}
-
-static inline void setup_jiffies_interrupt(int irq,
- struct irqaction *action)
-{
- u16 tmp;
- setup_irq(irq, action);
- set_intr_level(irq, NUM2GxICR_LEVEL(CONFIG_TIMER_IRQ_LEVEL));
- GxICR(irq) |= GxICR_ENABLE | GxICR_DETECT | GxICR_REQUEST;
- tmp = GxICR(irq);
-}
-
-int __init init_clockevents(void)
-{
- struct clock_event_device *cd;
- struct irqaction *iact;
- unsigned int cpu = smp_processor_id();
-
- cd = &per_cpu(mn10300_clockevent_device, cpu);
-
- if (cpu == 0) {
- stop_jiffies_counter();
- cd->irq = TMJCIRQ;
- } else {
- stop_jiffies_counter1();
- cd->irq = TMJC1IRQ;
- }
-
- cd->name = "Timestamp";
- cd->features = CLOCK_EVT_FEAT_ONESHOT;
-
- /* Calculate shift/mult. We want to spawn at least 1 second */
- clockevents_calc_mult_shift(cd, MN10300_JCCLK, 1);
-
- /* Calculate the min / max delta */
- cd->max_delta_ns = clockevent_delta2ns(TMJCBR_MAX, cd);
- cd->max_delta_ticks = TMJCBR_MAX;
- cd->min_delta_ns = clockevent_delta2ns(100, cd);
- cd->min_delta_ticks = 100;
-
- cd->rating = 200;
- cd->cpumask = cpumask_of(smp_processor_id());
- cd->event_handler = event_handler;
- cd->set_next_event = next_event;
-
- iact = &per_cpu(timer_irq, cpu);
- iact->flags = IRQF_SHARED | IRQF_TIMER;
- iact->handler = timer_interrupt;
-
- clockevents_register_device(cd);
-
-#if defined(CONFIG_SMP) && !defined(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST)
- /* setup timer irq affinity so it only runs on this cpu */
- {
- struct irq_data *data;
- data = irq_get_irq_data(cd->irq);
- cpumask_copy(irq_data_get_affinity_mask(data), cpumask_of(cpu));
- iact->flags |= IRQF_NOBALANCING;
- }
-#endif
-
- if (cpu == 0) {
- reload_jiffies_counter(MN10300_JC_PER_HZ - 1);
- iact->name = "CPU0 Timer";
- } else {
- reload_jiffies_counter1(MN10300_JC_PER_HZ - 1);
- iact->name = "CPU1 Timer";
- }
-
- setup_jiffies_interrupt(cd->irq, iact);
-
- return 0;
-}