aboutsummaryrefslogtreecommitdiffstats
path: root/arch/score/kernel/time.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/score/kernel/time.c')
-rw-r--r--arch/score/kernel/time.c90
1 files changed, 0 insertions, 90 deletions
diff --git a/arch/score/kernel/time.c b/arch/score/kernel/time.c
deleted file mode 100644
index 29aafc741f69..000000000000
--- a/arch/score/kernel/time.c
+++ /dev/null
@@ -1,90 +0,0 @@
-/*
- * arch/score/kernel/time.c
- *
- * Score Processor version.
- *
- * Copyright (C) 2009 Sunplus Core Technology Co., Ltd.
- * Chen Liqin <liqin.chen@sunplusct.com>
- * Lennox Wu <lennox.wu@sunplusct.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see the file COPYING, or write
- * to the Free Software Foundation, Inc.,
- * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include <linux/clockchips.h>
-#include <linux/interrupt.h>
-
-#include <asm/scoreregs.h>
-
-static irqreturn_t timer_interrupt(int irq, void *dev_id)
-{
- struct clock_event_device *evdev = dev_id;
-
- /* clear timer interrupt flag */
- outl(1, P_TIMER0_CPP_REG);
- evdev->event_handler(evdev);
-
- return IRQ_HANDLED;
-}
-
-static struct irqaction timer_irq = {
- .handler = timer_interrupt,
- .flags = IRQF_TIMER,
- .name = "timer",
-};
-
-static int score_timer_set_next_event(unsigned long delta,
- struct clock_event_device *evdev)
-{
- outl((TMR_M_PERIODIC | TMR_IE_ENABLE), P_TIMER0_CTRL);
- outl(delta, P_TIMER0_PRELOAD);
- outl(inl(P_TIMER0_CTRL) | TMR_ENABLE, P_TIMER0_CTRL);
-
- return 0;
-}
-
-static int score_timer_set_periodic(struct clock_event_device *evt)
-{
- outl((TMR_M_PERIODIC | TMR_IE_ENABLE), P_TIMER0_CTRL);
- outl(SYSTEM_CLOCK / HZ, P_TIMER0_PRELOAD);
- outl(inl(P_TIMER0_CTRL) | TMR_ENABLE, P_TIMER0_CTRL);
- return 0;
-}
-
-static struct clock_event_device score_clockevent = {
- .name = "score_clockevent",
- .features = CLOCK_EVT_FEAT_PERIODIC,
- .shift = 16,
- .set_next_event = score_timer_set_next_event,
- .set_state_periodic = score_timer_set_periodic,
-};
-
-void __init time_init(void)
-{
- timer_irq.dev_id = &score_clockevent;
- setup_irq(IRQ_TIMER , &timer_irq);
-
- /* setup COMPARE clockevent */
- score_clockevent.mult = div_sc(SYSTEM_CLOCK, NSEC_PER_SEC,
- score_clockevent.shift);
- score_clockevent.max_delta_ns = clockevent_delta2ns((u32)~0,
- &score_clockevent);
- score_clockevent.max_delta_ticks = (u32)~0;
- score_clockevent.min_delta_ns = clockevent_delta2ns(50,
- &score_clockevent) + 1;
- score_clockevent.min_delta_ticks = 50;
- score_clockevent.cpumask = cpumask_of(0);
- clockevents_register_device(&score_clockevent);
-}