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@@ -0,0 +1,56 @@
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+/*
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+ * linux/arch/arm/kernel/arch_timer.c
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+ *
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+ * Copyright (C) 2011 ARM Ltd.
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+ * All Rights Reserved
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+ *
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+ * This program is free software; you can redistribute it and/or modify
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+ * it under the terms of the GNU General Public License version 2 as
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+ * published by the Free Software Foundation.
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+ */
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+#include <linux/init.h>
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+#include <linux/kernel.h>
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+#include <linux/delay.h>
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+#include <linux/device.h>
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+#include <linux/smp.h>
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+#include <linux/cpu.h>
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+#include <linux/jiffies.h>
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+#include <linux/clockchips.h>
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+#include <linux/interrupt.h>
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+#include <linux/of_irq.h>
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+#include <linux/io.h>
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+
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+#include <asm/cputype.h>
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+#include <asm/delay.h>
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+#include <asm/localtimer.h>
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+#include <asm/arch_timer.h>
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+#include <asm/system_info.h>
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+#include <asm/sched_clock.h>
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+
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+static unsigned long arch_timer_rate;
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+
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+enum ppi_nr {
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+ PHYS_SECURE_PPI,
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+ PHYS_NONSECURE_PPI,
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+ VIRT_PPI,
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+ HYP_PPI,
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+ MAX_TIMER_PPI
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+};
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+
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+static int arch_timer_ppi[MAX_TIMER_PPI];
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+
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+static struct clock_event_device __percpu **arch_timer_evt;
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+static struct delay_timer arch_delay_timer;
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+
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+static bool arch_timer_use_virtual = true;
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+
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+/*
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+ * Architected system timer support.
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+ */
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+
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+#define ARCH_TIMER_CTRL_ENABLE (1 << 0)
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+#define ARCH_TIMER_CTRL_IT_MASK (1 << 1)
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+#define ARCH_TIMER_CTRL_IT_STAT (1 << 2)
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+
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+#define ARCH_TIMER_REG_CTRL 0
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+#define ARCH_TIMER_REG_FREQ 1
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