1 files changed, 0 insertions, 266 deletions
diff --git a/drivers/clocksource/timer-atcpit100.c b/drivers/clocksource/timer-atcpit100.c
deleted file mode 100644
index b4bd2f5b801d..000000000000
--- a/drivers/clocksource/timer-atcpit100.c
+++ /dev/null
@@ -1,266 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2017 Andes Technology Corporation
-/*
- *  Andestech ATCPIT100 Timer Device Driver Implementation
- * Rick Chen, Andes Technology Corporation <rick@andestech.com>
- *
- */
-
-#include <linux/irq.h>
-#include <linux/clocksource.h>
-#include <linux/clockchips.h>
-#include <linux/interrupt.h>
-#include <linux/ioport.h>
-#include <linux/cpufreq.h>
-#include <linux/sched.h>
-#include <linux/sched_clock.h>
-#include <linux/of_address.h>
-#include <linux/of_irq.h>
-#include <linux/of_platform.h>
-#include "timer-of.h"
-#ifdef CONFIG_NDS32
-#include <asm/vdso_timer_info.h>
-#endif
-
-/*
- * Definition of register offsets
- */
-
-/* ID and Revision Register */
-#define ID_REV		0x0
-
-/* Configuration Register */
-#define CFG		0x10
-
-/* Interrupt Enable Register */
-#define INT_EN		0x14
-#define CH_INT_EN(c, i)	((1<<i)<<(4*c))
-#define CH0INT0EN	0x01
-
-/* Interrupt Status Register */
-#define INT_STA		0x18
-#define CH0INT0		0x01
-
-/* Channel Enable Register */
-#define CH_EN		0x1C
-#define CH0TMR0EN	0x1
-#define CH1TMR0EN	0x10
-
-/* Channel 0 , 1 Control Register */
-#define CH0_CTL		(0x20)
-#define CH1_CTL		(0x20 + 0x10)
-
-/* Channel clock source , bit 3 , 0:External clock , 1:APB clock */
-#define APB_CLK		BIT(3)
-
-/* Channel mode , bit 0~2 */
-#define TMR_32		0x1
-#define TMR_16		0x2
-#define TMR_8		0x3
-
-/* Channel 0 , 1 Reload Register */
-#define CH0_REL		(0x24)
-#define CH1_REL		(0x24 + 0x10)
-
-/* Channel 0 , 1 Counter Register */
-#define CH0_CNT		(0x28)
-#define CH1_CNT		(0x28 + 0x10)
-
-#define TIMER_SYNC_TICKS	3
-
-static void atcpit100_ch1_tmr0_en(void __iomem *base)
-{
-	writel(~0, base + CH1_REL);
-	writel(APB_CLK|TMR_32, base + CH1_CTL);
-}
-
-static void atcpit100_ch0_tmr0_en(void __iomem *base)
-{
-	writel(APB_CLK|TMR_32, base + CH0_CTL);
-}
-
-static void atcpit100_clkevt_time_setup(void __iomem *base, unsigned long delay)
-{
-	writel(delay, base + CH0_CNT);
-	writel(delay, base + CH0_REL);
-}
-
-static void atcpit100_timer_clear_interrupt(void __iomem *base)
-{
-	u32 val;
-
-	val = readl(base + INT_STA);
-	writel(val | CH0INT0, base + INT_STA);
-}
-
-static void atcpit100_clocksource_start(void __iomem *base)
-{
-	u32 val;
-
-	val = readl(base + CH_EN);
-	writel(val | CH1TMR0EN, base + CH_EN);
-}
-
-static void atcpit100_clkevt_time_start(void __iomem *base)
-{
-	u32 val;
-
-	val = readl(base + CH_EN);
-	writel(val | CH0TMR0EN, base + CH_EN);
-}
-
-static void atcpit100_clkevt_time_stop(void __iomem *base)
-{
-	u32 val;
-
-	atcpit100_timer_clear_interrupt(base);
-	val = readl(base + CH_EN);
-	writel(val & ~CH0TMR0EN, base + CH_EN);
-}
-
-static int atcpit100_clkevt_next_event(unsigned long evt,
-	struct clock_event_device *clkevt)
-{
-	u32 val;
-	struct timer_of *to = to_timer_of(clkevt);
-
-	val = readl(timer_of_base(to) + CH_EN);
-	writel(val & ~CH0TMR0EN, timer_of_base(to) + CH_EN);
-	writel(evt, timer_of_base(to) + CH0_REL);
-	writel(val | CH0TMR0EN, timer_of_base(to) + CH_EN);
-
-	return 0;
-}
-
-static int atcpit100_clkevt_set_periodic(struct clock_event_device *evt)
-{
-	struct timer_of *to = to_timer_of(evt);
-
-	atcpit100_clkevt_time_setup(timer_of_base(to), timer_of_period(to));
-	atcpit100_clkevt_time_start(timer_of_base(to));
-
-	return 0;
-}
-static int atcpit100_clkevt_shutdown(struct clock_event_device *evt)
-{
-	struct timer_of *to = to_timer_of(evt);
-
-	atcpit100_clkevt_time_stop(timer_of_base(to));
-
-	return 0;
-}
-static int atcpit100_clkevt_set_oneshot(struct clock_event_device *evt)
-{
-	struct timer_of *to = to_timer_of(evt);
-	u32 val;
-
-	writel(~0x0, timer_of_base(to) + CH0_REL);
-	val = readl(timer_of_base(to) + CH_EN);
-	writel(val | CH0TMR0EN, timer_of_base(to) + CH_EN);
-
-	return 0;
-}
-
-static irqreturn_t atcpit100_timer_interrupt(int irq, void *dev_id)
-{
-	struct clock_event_device *evt = (struct clock_event_device *)dev_id;
-	struct timer_of *to = to_timer_of(evt);
-
-	atcpit100_timer_clear_interrupt(timer_of_base(to));
-
-	evt->event_handler(evt);
-
-	return IRQ_HANDLED;
-}
-
-static struct timer_of to = {
-	.flags = TIMER_OF_IRQ | TIMER_OF_CLOCK | TIMER_OF_BASE,
-
-	.clkevt = {
-		.name = "atcpit100_tick",
-		.rating = 300,
-		.features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
-		.set_state_shutdown = atcpit100_clkevt_shutdown,
-		.set_state_periodic = atcpit100_clkevt_set_periodic,
-		.set_state_oneshot = atcpit100_clkevt_set_oneshot,
-		.tick_resume = atcpit100_clkevt_shutdown,
-		.set_next_event = atcpit100_clkevt_next_event,
-		.cpumask = cpu_possible_mask,
-	},
-
-	.of_irq = {
-		.handler = atcpit100_timer_interrupt,
-		.flags = IRQF_TIMER | IRQF_IRQPOLL,
-	},
-
-	/*
-	 * FIXME: we currently only support clocking using PCLK
-	 * and using EXTCLK is not supported in the driver.
-	 */
-	.of_clk = {
-		.name = "PCLK",
-	}
-};
-
-static u64 notrace atcpit100_timer_sched_read(void)
-{
-	return ~readl(timer_of_base(&to) + CH1_CNT);
-}
-
-#ifdef CONFIG_NDS32
-static void fill_vdso_need_info(struct device_node *node)
-{
-	struct resource timer_res;
-	of_address_to_resource(node, 0, &timer_res);
-	timer_info.mapping_base = (unsigned long)timer_res.start;
-	timer_info.cycle_count_down = true;
-	timer_info.cycle_count_reg_offset = CH1_CNT;
-}
-#endif
-
-static int __init atcpit100_timer_init(struct device_node *node)
-{
-	int ret;
-	u32 val;
-	void __iomem *base;
-
-	ret = timer_of_init(node, &to);
-	if (ret)
-		return ret;
-
-	base = timer_of_base(&to);
-
-	sched_clock_register(atcpit100_timer_sched_read, 32,
-		timer_of_rate(&to));
-
-	ret = clocksource_mmio_init(base + CH1_CNT,
-		node->name, timer_of_rate(&to), 300, 32,
-		clocksource_mmio_readl_down);
-
-	if (ret) {
-		pr_err("Failed to register clocksource\n");
-		return ret;
-	}
-
-	/* clear channel 0 timer0 interrupt */
-	atcpit100_timer_clear_interrupt(base);
-
-	clockevents_config_and_register(&to.clkevt, timer_of_rate(&to),
-					TIMER_SYNC_TICKS, 0xffffffff);
-	atcpit100_ch0_tmr0_en(base);
-	atcpit100_ch1_tmr0_en(base);
-	atcpit100_clocksource_start(base);
-	atcpit100_clkevt_time_start(base);
-
-	/* Enable channel 0 timer0 interrupt */
-	val = readl(base + INT_EN);
-	writel(val | CH0INT0EN, base + INT_EN);
-
-#ifdef CONFIG_NDS32
-	fill_vdso_need_info(node);
-#endif
-
-	return ret;
-}
-
-TIMER_OF_DECLARE(atcpit100, "andestech,atcpit100", atcpit100_timer_init);