diff options
author | Ingo Molnar <mingo@elte.hu> | 2009-01-11 02:42:53 +0100 |
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committer | Ingo Molnar <mingo@elte.hu> | 2009-01-11 02:42:53 +0100 |
commit | 506c10f26c481b7f8ef27c1c79290f68989b2e9e (patch) | |
tree | 03de82e812f00957aa6276dac2fe51c3358e88d7 /arch/arm/mach-w90x900/time.c | |
parent | e1df957670aef74ffd9a4ad93e6d2c90bf6b4845 (diff) | |
parent | c59765042f53a79a7a65585042ff463b69cb248c (diff) |
Merge commit 'v2.6.29-rc1' into perfcounters/core
Conflicts:
include/linux/kernel_stat.h
Diffstat (limited to 'arch/arm/mach-w90x900/time.c')
-rw-r--r-- | arch/arm/mach-w90x900/time.c | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/arch/arm/mach-w90x900/time.c b/arch/arm/mach-w90x900/time.c new file mode 100644 index 00000000000..3a69e381f31 --- /dev/null +++ b/arch/arm/mach-w90x900/time.c @@ -0,0 +1,80 @@ +/* + * linux/arch/arm/mach-w90x900/time.c + * + * Based on linux/arch/arm/plat-s3c24xx/time.c by Ben Dooks + * + * Copyright (c) 2008 Nuvoton technology corporation + * All rights reserved. + * + * 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> + +static unsigned long w90x900_gettimeoffset(void) +{ + return 0; +} + +/*IRQ handler for the timer*/ + +static irqreturn_t +w90x900_timer_interrupt(int irq, void *dev_id) +{ + timer_tick(); + __raw_writel(0x01, REG_TISR); /* clear TIF0 */ + return IRQ_HANDLED; +} + +static struct irqaction w90x900_timer_irq = { + .name = "w90x900 Timer Tick", + .flags = IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL, + .handler = w90x900_timer_interrupt, +}; + +/*Set up timer reg.*/ + +static void w90x900_timer_setup(void) +{ + __raw_writel(0, REG_TCSR0); + __raw_writel(0, REG_TCSR1); + __raw_writel(0, REG_TCSR2); + __raw_writel(0, REG_TCSR3); + __raw_writel(0, REG_TCSR4); + __raw_writel(0x1F, REG_TISR); + __raw_writel(15000000/(100 * 100), REG_TICR0); + __raw_writel(0x68000063, REG_TCSR0); +} + +static void __init w90x900_timer_init(void) +{ + w90x900_timer_setup(); + setup_irq(IRQ_TIMER0, &w90x900_timer_irq); +} + +struct sys_timer w90x900_timer = { + .init = w90x900_timer_init, + .offset = w90x900_gettimeoffset, + .resume = w90x900_timer_setup +}; |