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-rw-r--r--arch/arm/mach-ns9xxx/time-ns9360.c181
1 files changed, 0 insertions, 181 deletions
diff --git a/arch/arm/mach-ns9xxx/time-ns9360.c b/arch/arm/mach-ns9xxx/time-ns9360.c
deleted file mode 100644
index 9ca32f55728..00000000000
--- a/arch/arm/mach-ns9xxx/time-ns9360.c
+++ /dev/null
@@ -1,181 +0,0 @@
-/*
- * arch/arm/mach-ns9xxx/time-ns9360.c
- *
- * Copyright (C) 2006,2007 by Digi International Inc.
- * All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- */
-#include <linux/jiffies.h>
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/stringify.h>
-#include <linux/clocksource.h>
-#include <linux/clockchips.h>
-
-#include <mach/processor-ns9360.h>
-#include <mach/regs-sys-ns9360.h>
-#include <mach/irqs.h>
-#include <mach/system.h>
-#include "generic.h"
-
-#define TIMER_CLOCKSOURCE 0
-#define TIMER_CLOCKEVENT 1
-static u32 latch;
-
-static cycle_t ns9360_clocksource_read(struct clocksource *cs)
-{
- return __raw_readl(SYS_TR(TIMER_CLOCKSOURCE));
-}
-
-static struct clocksource ns9360_clocksource = {
- .name = "ns9360-timer" __stringify(TIMER_CLOCKSOURCE),
- .rating = 300,
- .read = ns9360_clocksource_read,
- .mask = CLOCKSOURCE_MASK(32),
- .flags = CLOCK_SOURCE_IS_CONTINUOUS,
-};
-
-static void ns9360_clockevent_setmode(enum clock_event_mode mode,
- struct clock_event_device *clk)
-{
- u32 tc = __raw_readl(SYS_TC(TIMER_CLOCKEVENT));
-
- switch (mode) {
- case CLOCK_EVT_MODE_PERIODIC:
- __raw_writel(latch, SYS_TRC(TIMER_CLOCKEVENT));
- REGSET(tc, SYS_TCx, REN, EN);
- REGSET(tc, SYS_TCx, INTS, EN);
- REGSET(tc, SYS_TCx, TEN, EN);
- break;
-
- case CLOCK_EVT_MODE_ONESHOT:
- REGSET(tc, SYS_TCx, REN, DIS);
- REGSET(tc, SYS_TCx, INTS, EN);
-
- /* fall through */
-
- case CLOCK_EVT_MODE_UNUSED:
- case CLOCK_EVT_MODE_SHUTDOWN:
- case CLOCK_EVT_MODE_RESUME:
- default:
- REGSET(tc, SYS_TCx, TEN, DIS);
- break;
- }
-
- __raw_writel(tc, SYS_TC(TIMER_CLOCKEVENT));
-}
-
-static int ns9360_clockevent_setnextevent(unsigned long evt,
- struct clock_event_device *clk)
-{
- u32 tc = __raw_readl(SYS_TC(TIMER_CLOCKEVENT));
-
- if (REGGET(tc, SYS_TCx, TEN)) {
- REGSET(tc, SYS_TCx, TEN, DIS);
- __raw_writel(tc, SYS_TC(TIMER_CLOCKEVENT));
- }
-
- REGSET(tc, SYS_TCx, TEN, EN);
-
- __raw_writel(evt, SYS_TRC(TIMER_CLOCKEVENT));
-
- __raw_writel(tc, SYS_TC(TIMER_CLOCKEVENT));
-
- return 0;
-}
-
-static struct clock_event_device ns9360_clockevent_device = {
- .name = "ns9360-timer" __stringify(TIMER_CLOCKEVENT),
- .shift = 20,
- .features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
- .set_mode = ns9360_clockevent_setmode,
- .set_next_event = ns9360_clockevent_setnextevent,
-};
-
-static irqreturn_t ns9360_clockevent_handler(int irq, void *dev_id)
-{
- int timerno = irq - IRQ_NS9360_TIMER0;
- u32 tc;
-
- struct clock_event_device *evt = &ns9360_clockevent_device;
-
- /* clear irq */
- tc = __raw_readl(SYS_TC(timerno));
- if (REGGET(tc, SYS_TCx, REN) == SYS_TCx_REN_DIS) {
- REGSET(tc, SYS_TCx, TEN, DIS);
- __raw_writel(tc, SYS_TC(timerno));
- }
- REGSET(tc, SYS_TCx, INTC, SET);
- __raw_writel(tc, SYS_TC(timerno));
- REGSET(tc, SYS_TCx, INTC, UNSET);
- __raw_writel(tc, SYS_TC(timerno));
-
- evt->event_handler(evt);
-
- return IRQ_HANDLED;
-}
-
-static struct irqaction ns9360_clockevent_action = {
- .name = "ns9360-timer" __stringify(TIMER_CLOCKEVENT),
- .flags = IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL,
- .handler = ns9360_clockevent_handler,
-};
-
-static void __init ns9360_timer_init(void)
-{
- int tc;
-
- tc = __raw_readl(SYS_TC(TIMER_CLOCKSOURCE));
- if (REGGET(tc, SYS_TCx, TEN)) {
- REGSET(tc, SYS_TCx, TEN, DIS);
- __raw_writel(tc, SYS_TC(TIMER_CLOCKSOURCE));
- }
-
- __raw_writel(0, SYS_TRC(TIMER_CLOCKSOURCE));
-
- REGSET(tc, SYS_TCx, TEN, EN);
- REGSET(tc, SYS_TCx, TDBG, STOP);
- REGSET(tc, SYS_TCx, TLCS, CPU);
- REGSET(tc, SYS_TCx, TM, IEE);
- REGSET(tc, SYS_TCx, INTS, DIS);
- REGSET(tc, SYS_TCx, UDS, UP);
- REGSET(tc, SYS_TCx, TSZ, 32);
- REGSET(tc, SYS_TCx, REN, EN);
-
- __raw_writel(tc, SYS_TC(TIMER_CLOCKSOURCE));
-
- clocksource_register_hz(&ns9360_clocksource, ns9360_cpuclock());
-
- latch = SH_DIV(ns9360_cpuclock(), HZ, 0);
-
- tc = __raw_readl(SYS_TC(TIMER_CLOCKEVENT));
- REGSET(tc, SYS_TCx, TEN, DIS);
- REGSET(tc, SYS_TCx, TDBG, STOP);
- REGSET(tc, SYS_TCx, TLCS, CPU);
- REGSET(tc, SYS_TCx, TM, IEE);
- REGSET(tc, SYS_TCx, INTS, DIS);
- REGSET(tc, SYS_TCx, UDS, DOWN);
- REGSET(tc, SYS_TCx, TSZ, 32);
- REGSET(tc, SYS_TCx, REN, EN);
- __raw_writel(tc, SYS_TC(TIMER_CLOCKEVENT));
-
- ns9360_clockevent_device.mult = div_sc(ns9360_cpuclock(),
- NSEC_PER_SEC, ns9360_clockevent_device.shift);
- ns9360_clockevent_device.max_delta_ns =
- clockevent_delta2ns(-1, &ns9360_clockevent_device);
- ns9360_clockevent_device.min_delta_ns =
- clockevent_delta2ns(1, &ns9360_clockevent_device);
-
- ns9360_clockevent_device.cpumask = cpumask_of(0);
- clockevents_register_device(&ns9360_clockevent_device);
-
- setup_irq(IRQ_NS9360_TIMER0 + TIMER_CLOCKEVENT,
- &ns9360_clockevent_action);
-}
-
-struct sys_timer ns9360_timer = {
- .init = ns9360_timer_init,
-};