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-rw-r--r--arch/arm/mach-netx/time.c141
1 files changed, 0 insertions, 141 deletions
diff --git a/arch/arm/mach-netx/time.c b/arch/arm/mach-netx/time.c
deleted file mode 100644
index d9defa1ab605..000000000000
--- a/arch/arm/mach-netx/time.c
+++ /dev/null
@@ -1,141 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * arch/arm/mach-netx/time.c
- *
- * Copyright (c) 2005 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
- */
-
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/clocksource.h>
-#include <linux/clockchips.h>
-#include <linux/io.h>
-
-#include <mach/hardware.h>
-#include <asm/mach/time.h>
-#include <mach/netx-regs.h>
-
-#define NETX_CLOCK_FREQ 100000000
-#define NETX_LATCH DIV_ROUND_CLOSEST(NETX_CLOCK_FREQ, HZ)
-
-#define TIMER_CLOCKEVENT 0
-#define TIMER_CLOCKSOURCE 1
-
-static inline void timer_shutdown(struct clock_event_device *evt)
-{
- /* disable timer */
- writel(0, NETX_GPIO_COUNTER_CTRL(TIMER_CLOCKEVENT));
-}
-
-static int netx_shutdown(struct clock_event_device *evt)
-{
- timer_shutdown(evt);
-
- return 0;
-}
-
-static int netx_set_oneshot(struct clock_event_device *evt)
-{
- u32 tmode = NETX_GPIO_COUNTER_CTRL_IRQ_EN | NETX_GPIO_COUNTER_CTRL_RUN;
-
- timer_shutdown(evt);
- writel(0, NETX_GPIO_COUNTER_MAX(TIMER_CLOCKEVENT));
- writel(tmode, NETX_GPIO_COUNTER_CTRL(TIMER_CLOCKEVENT));
-
- return 0;
-}
-
-static int netx_set_periodic(struct clock_event_device *evt)
-{
- u32 tmode = NETX_GPIO_COUNTER_CTRL_RST_EN |
- NETX_GPIO_COUNTER_CTRL_IRQ_EN | NETX_GPIO_COUNTER_CTRL_RUN;
-
- timer_shutdown(evt);
- writel(NETX_LATCH, NETX_GPIO_COUNTER_MAX(TIMER_CLOCKEVENT));
- writel(tmode, NETX_GPIO_COUNTER_CTRL(TIMER_CLOCKEVENT));
-
- return 0;
-}
-
-static int netx_set_next_event(unsigned long evt,
- struct clock_event_device *clk)
-{
- writel(0 - evt, NETX_GPIO_COUNTER_CURRENT(TIMER_CLOCKEVENT));
- return 0;
-}
-
-static struct clock_event_device netx_clockevent = {
- .name = "netx-timer" __stringify(TIMER_CLOCKEVENT),
- .features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
- .set_next_event = netx_set_next_event,
- .set_state_shutdown = netx_shutdown,
- .set_state_periodic = netx_set_periodic,
- .set_state_oneshot = netx_set_oneshot,
- .tick_resume = netx_shutdown,
-};
-
-/*
- * IRQ handler for the timer
- */
-static irqreturn_t
-netx_timer_interrupt(int irq, void *dev_id)
-{
- struct clock_event_device *evt = &netx_clockevent;
-
- /* acknowledge interrupt */
- writel(COUNTER_BIT(0), NETX_GPIO_IRQ);
-
- evt->event_handler(evt);
-
- return IRQ_HANDLED;
-}
-
-static struct irqaction netx_timer_irq = {
- .name = "NetX Timer Tick",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = netx_timer_interrupt,
-};
-
-/*
- * Set up timer interrupt
- */
-void __init netx_timer_init(void)
-{
- /* disable timer initially */
- writel(0, NETX_GPIO_COUNTER_CTRL(0));
-
- /* Reset the timer value to zero */
- writel(0, NETX_GPIO_COUNTER_CURRENT(0));
-
- writel(NETX_LATCH, NETX_GPIO_COUNTER_MAX(0));
-
- /* acknowledge interrupt */
- writel(COUNTER_BIT(0), NETX_GPIO_IRQ);
-
- /* Enable the interrupt in the specific timer
- * register and start timer
- */
- writel(COUNTER_BIT(0), NETX_GPIO_IRQ_ENABLE);
- writel(NETX_GPIO_COUNTER_CTRL_IRQ_EN | NETX_GPIO_COUNTER_CTRL_RUN,
- NETX_GPIO_COUNTER_CTRL(0));
-
- setup_irq(NETX_IRQ_TIMER0, &netx_timer_irq);
-
- /* Setup timer one for clocksource */
- writel(0, NETX_GPIO_COUNTER_CTRL(TIMER_CLOCKSOURCE));
- writel(0, NETX_GPIO_COUNTER_CURRENT(TIMER_CLOCKSOURCE));
- writel(0xffffffff, NETX_GPIO_COUNTER_MAX(TIMER_CLOCKSOURCE));
-
- writel(NETX_GPIO_COUNTER_CTRL_RUN,
- NETX_GPIO_COUNTER_CTRL(TIMER_CLOCKSOURCE));
-
- clocksource_mmio_init(NETX_GPIO_COUNTER_CURRENT(TIMER_CLOCKSOURCE),
- "netx_timer", NETX_CLOCK_FREQ, 200, 32, clocksource_mmio_readl_up);
-
- /* with max_delta_ns >= delta2ns(0x800) the system currently runs fine.
- * Adding some safety ... */
- netx_clockevent.cpumask = cpumask_of(0);
- clockevents_config_and_register(&netx_clockevent, NETX_CLOCK_FREQ,
- 0xa00, 0xfffffffe);
-}