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-rw-r--r--arch/arm/mach-iop32x/time.c179
1 files changed, 0 insertions, 179 deletions
diff --git a/arch/arm/mach-iop32x/time.c b/arch/arm/mach-iop32x/time.c
deleted file mode 100644
index ae533b66fefd..000000000000
--- a/arch/arm/mach-iop32x/time.c
+++ /dev/null
@@ -1,179 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * arch/arm/plat-iop/time.c
- *
- * Timer code for IOP32x and IOP33x based systems
- *
- * Author: Deepak Saxena <dsaxena@mvista.com>
- *
- * Copyright 2002-2003 MontaVista Software Inc.
- */
-
-#include <linux/kernel.h>
-#include <linux/interrupt.h>
-#include <linux/time.h>
-#include <linux/init.h>
-#include <linux/timex.h>
-#include <linux/io.h>
-#include <linux/clocksource.h>
-#include <linux/clockchips.h>
-#include <linux/export.h>
-#include <linux/sched_clock.h>
-#include <asm/irq.h>
-#include <linux/uaccess.h>
-#include <asm/mach/irq.h>
-#include <asm/mach/time.h>
-
-#include "hardware.h"
-#include "irqs.h"
-
-/*
- * Minimum clocksource/clockevent timer range in seconds
- */
-#define IOP_MIN_RANGE 4
-
-/*
- * IOP clocksource (free-running timer 1).
- */
-static u64 notrace iop_clocksource_read(struct clocksource *unused)
-{
- return 0xffffffffu - read_tcr1();
-}
-
-static struct clocksource iop_clocksource = {
- .name = "iop_timer1",
- .rating = 300,
- .read = iop_clocksource_read,
- .mask = CLOCKSOURCE_MASK(32),
- .flags = CLOCK_SOURCE_IS_CONTINUOUS,
-};
-
-/*
- * IOP sched_clock() implementation via its clocksource.
- */
-static u64 notrace iop_read_sched_clock(void)
-{
- return 0xffffffffu - read_tcr1();
-}
-
-/*
- * IOP clockevents (interrupting timer 0).
- */
-static int iop_set_next_event(unsigned long delta,
- struct clock_event_device *unused)
-{
- u32 tmr = IOP_TMR_PRIVILEGED | IOP_TMR_RATIO_1_1;
-
- BUG_ON(delta == 0);
- write_tmr0(tmr & ~(IOP_TMR_EN | IOP_TMR_RELOAD));
- write_tcr0(delta);
- write_tmr0((tmr & ~IOP_TMR_RELOAD) | IOP_TMR_EN);
-
- return 0;
-}
-
-static unsigned long ticks_per_jiffy;
-
-static int iop_set_periodic(struct clock_event_device *evt)
-{
- u32 tmr = read_tmr0();
-
- write_tmr0(tmr & ~IOP_TMR_EN);
- write_tcr0(ticks_per_jiffy - 1);
- write_trr0(ticks_per_jiffy - 1);
- tmr |= (IOP_TMR_RELOAD | IOP_TMR_EN);
-
- write_tmr0(tmr);
- return 0;
-}
-
-static int iop_set_oneshot(struct clock_event_device *evt)
-{
- u32 tmr = read_tmr0();
-
- /* ->set_next_event sets period and enables timer */
- tmr &= ~(IOP_TMR_RELOAD | IOP_TMR_EN);
- write_tmr0(tmr);
- return 0;
-}
-
-static int iop_shutdown(struct clock_event_device *evt)
-{
- u32 tmr = read_tmr0();
-
- tmr &= ~IOP_TMR_EN;
- write_tmr0(tmr);
- return 0;
-}
-
-static int iop_resume(struct clock_event_device *evt)
-{
- u32 tmr = read_tmr0();
-
- tmr |= IOP_TMR_EN;
- write_tmr0(tmr);
- return 0;
-}
-
-static struct clock_event_device iop_clockevent = {
- .name = "iop_timer0",
- .features = CLOCK_EVT_FEAT_PERIODIC |
- CLOCK_EVT_FEAT_ONESHOT,
- .rating = 300,
- .set_next_event = iop_set_next_event,
- .set_state_shutdown = iop_shutdown,
- .set_state_periodic = iop_set_periodic,
- .tick_resume = iop_resume,
- .set_state_oneshot = iop_set_oneshot,
-};
-
-static irqreturn_t
-iop_timer_interrupt(int irq, void *dev_id)
-{
- struct clock_event_device *evt = dev_id;
-
- write_tisr(1);
- evt->event_handler(evt);
- return IRQ_HANDLED;
-}
-
-static unsigned long iop_tick_rate;
-unsigned long get_iop_tick_rate(void)
-{
- return iop_tick_rate;
-}
-EXPORT_SYMBOL(get_iop_tick_rate);
-
-void __init iop_init_time(unsigned long tick_rate)
-{
- u32 timer_ctl;
- int irq = IRQ_IOP32X_TIMER0;
-
- sched_clock_register(iop_read_sched_clock, 32, tick_rate);
-
- ticks_per_jiffy = DIV_ROUND_CLOSEST(tick_rate, HZ);
- iop_tick_rate = tick_rate;
-
- timer_ctl = IOP_TMR_EN | IOP_TMR_PRIVILEGED |
- IOP_TMR_RELOAD | IOP_TMR_RATIO_1_1;
-
- /*
- * Set up interrupting clockevent timer 0.
- */
- write_tmr0(timer_ctl & ~IOP_TMR_EN);
- write_tisr(1);
- if (request_irq(irq, iop_timer_interrupt, IRQF_TIMER | IRQF_IRQPOLL,
- "IOP Timer Tick", &iop_clockevent))
- pr_err("Failed to request irq() %d (IOP Timer Tick)\n", irq);
- iop_clockevent.cpumask = cpumask_of(0);
- clockevents_config_and_register(&iop_clockevent, tick_rate,
- 0xf, 0xfffffffe);
-
- /*
- * Set up free-running clocksource timer 1.
- */
- write_trr1(0xffffffff);
- write_tcr1(0xffffffff);
- write_tmr1(timer_ctl);
- clocksource_register_hz(&iop_clocksource, tick_rate);
-}