summaryrefslogtreecommitdiff
path: root/arch/arm/mach-nuc93x/time.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/mach-nuc93x/time.c')
-rw-r--r--arch/arm/mach-nuc93x/time.c100
1 files changed, 0 insertions, 100 deletions
diff --git a/arch/arm/mach-nuc93x/time.c b/arch/arm/mach-nuc93x/time.c
deleted file mode 100644
index f9807c029ec5..000000000000
--- a/arch/arm/mach-nuc93x/time.c
+++ /dev/null
@@ -1,100 +0,0 @@
-/*
- * linux/arch/arm/mach-nuc93x/time.c
- *
- * Copyright (c) 2009 Nuvoton technology corporation.
- *
- * Wan ZongShun <mcuos.com@gmail.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/err.h>
-#include <linux/clk.h>
-#include <linux/io.h>
-#include <linux/leds.h>
-
-#include <asm/mach-types.h>
-#include <asm/mach/irq.h>
-#include <asm/mach/time.h>
-
-#include <mach/system.h>
-#include <mach/map.h>
-#include <mach/regs-timer.h>
-
-#define RESETINT 0x01
-#define PERIOD (0x01 << 27)
-#define ONESHOT (0x00 << 27)
-#define COUNTEN (0x01 << 30)
-#define INTEN (0x01 << 29)
-
-#define TICKS_PER_SEC 100
-#define PRESCALE 0x63 /* Divider = prescale + 1 */
-
-unsigned int timer0_load;
-
-static unsigned long nuc93x_gettimeoffset(void)
-{
- return 0;
-}
-
-/*IRQ handler for the timer*/
-
-static irqreturn_t nuc93x_timer_interrupt(int irq, void *dev_id)
-{
- timer_tick();
- __raw_writel(0x01, REG_TISR); /* clear TIF0 */
- return IRQ_HANDLED;
-}
-
-static struct irqaction nuc93x_timer_irq = {
- .name = "nuc93x Timer Tick",
- .flags = IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL,
- .handler = nuc93x_timer_interrupt,
-};
-
-/*Set up timer reg.*/
-
-static void nuc93x_timer_setup(void)
-{
- struct clk *ck_ext = clk_get(NULL, "ext");
- struct clk *ck_timer = clk_get(NULL, "timer");
- unsigned int rate, val = 0;
-
- BUG_ON(IS_ERR(ck_ext) || IS_ERR(ck_timer));
-
- clk_enable(ck_timer);
- rate = clk_get_rate(ck_ext);
- clk_put(ck_ext);
- rate = rate / (PRESCALE + 0x01);
-
- /* set a known state */
- __raw_writel(0x00, REG_TCSR0);
- __raw_writel(RESETINT, REG_TISR);
-
- timer0_load = (rate / TICKS_PER_SEC);
- __raw_writel(timer0_load, REG_TICR0);
-
- val |= (PERIOD | COUNTEN | INTEN | PRESCALE);
- __raw_writel(val, REG_TCSR0);
-
-}
-
-static void __init nuc93x_timer_init(void)
-{
- nuc93x_timer_setup();
- setup_irq(IRQ_TIMER0, &nuc93x_timer_irq);
-}
-
-struct sys_timer nuc93x_timer = {
- .init = nuc93x_timer_init,
- .offset = nuc93x_gettimeoffset,
- .resume = nuc93x_timer_setup
-};