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OpenCloudOS-Kernel/arch/arm/mach-realview/localtimer.c

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[ARM SMP] Add local timer support for Realview MPcore Add platform specific parts for local timer support for the Realview board. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-11-09 18:50:29 +08:00
/*
* linux/arch/arm/mach-realview/localtimer.c
*
* Copyright (C) 2002 ARM Ltd.
* All Rights Reserved
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/init.h>
#include <linux/smp.h>
[ARM] 4814/1: RealView: Add broadcasting clockevents support for ARM11MPCore This patch adds dummy local timers for each CPU so that the board clock device is used to broadcast events to the other CPUs. The patch also adds the declaration for the dummy_timer_setup function (the equivalent of local_timer_setup when CONFIG_LOCAL_TIMERS is not set). Due to the way clockevents work, the dummy timer on the first CPU has to be registered before the board timer. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-02-05 00:30:57 +08:00
#include <linux/clockchips.h>
[ARM SMP] Add local timer support for Realview MPcore Add platform specific parts for local timer support for the Realview board. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-11-09 18:50:29 +08:00
#include <asm/irq.h>
[ARM] smp: allow re-use of realview localtimer TWD support Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-05-16 19:14:21 +08:00
#include <asm/smp_twd.h>
#include <asm/localtimer.h>
[ARM SMP] Add local timer support for Realview MPcore Add platform specific parts for local timer support for the Realview board. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-11-09 18:50:29 +08:00
[ARM] 4815/1: RealView: Add clockevents suport for the local timers This patch registers the local timers on ARM11MPCore as clock event devices. The clock device can be set up as periodic or oneshot. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-02-05 00:32:57 +08:00
/*
* Setup the local clock events for a CPU.
*/
[ARM] smp: move core localtimer support out of platform specific files Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-05-18 01:58:34 +08:00
void __cpuinit local_timer_setup(struct clock_event_device *evt)
[ARM] 4815/1: RealView: Add clockevents suport for the local timers This patch registers the local timers on ARM11MPCore as clock event devices. The clock device can be set up as periodic or oneshot. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-02-05 00:32:57 +08:00
{
[ARM] smp: allow re-use of realview localtimer TWD support Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-05-16 19:14:21 +08:00
evt->irq = IRQ_LOCALTIMER;
twd_timer_setup(evt);
[ARM SMP] Add local timer support for Realview MPcore Add platform specific parts for local timer support for the Realview board. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-11-09 18:50:29 +08:00
}