Commit 7ac9b9eb authored by Marc Zyngier's avatar Marc Zyngier
Browse files

ARM: highbank: convert to twd_local_timer_register() interface 



Add support for the new smp_twd runtime registration interface
to the highbank platforms, and remove the old compile-time support.

The highbank DTS file is updated to match the TWD DT documentation
and fixes the timer trigger (rising edge).

Acked-by: default avatarRob Herring <rob.herring@calxeda.com>
Signed-off-by: default avatarMarc Zyngier <marc.zyngier@arm.com>
parent 08efd6ca

arch/arm/boot/dts/highbank.dts

+4 −4
Original line number Diff line number Diff line
@@ -72,15 +72,15 @@ 
		ranges;



		timer@fff10600 {

			compatible = "arm,smp-twd";

			compatible = "arm,cortex-a9-twd-timer";

			reg = <0xfff10600 0x20>;

			interrupts = <1 13 0xf04>;

			interrupts = <1 13 0xf01>;

		};



		watchdog@fff10620 {

			compatible = "arm,cortex-a9-wdt";

			compatible = "arm,cortex-a9-twd-wdt";

			reg = <0xfff10620 0x20>;

			interrupts = <1 14 0xf04>;

			interrupts = <1 14 0xf01>;

		};



		intc: interrupt-controller@fff11000 {

arch/arm/mach-highbank/Makefile

+0 −1
Original line number Diff line number Diff line 
obj-y					:= clock.o highbank.o system.o

obj-$(CONFIG_DEBUG_HIGHBANK_UART)	+= lluart.o

obj-$(CONFIG_SMP)			+= platsmp.o

obj-$(CONFIG_LOCAL_TIMERS)		+= localtimer.o

obj-$(CONFIG_HOTPLUG_CPU)		+= hotplug.o

obj-$(CONFIG_PM_SLEEP)			+= pm.o

arch/arm/mach-highbank/highbank.c

+3 −0
Original line number Diff line number Diff line
@@ -27,6 +27,7 @@ 
#include <asm/cacheflush.h>

#include <asm/smp_plat.h>

#include <asm/smp_scu.h>

#include <asm/smp_twd.h>

#include <asm/hardware/arm_timer.h>

#include <asm/hardware/timer-sp.h>

#include <asm/hardware/gic.h>
@@ -111,6 +112,8 @@ static void __init highbank_timer_init(void) 


	sp804_clocksource_init(timer_base + 0x20, "timer1");

	sp804_clockevents_init(timer_base, irq, "timer0");



	twd_local_timer_of_register();

}



static struct sys_timer highbank_timer = {

arch/arm/mach-highbank/localtimer.c

deleted100644 → 0
+0 −40
Original line number Diff line number Diff line 
/*

 * Copyright 2010-2011 Calxeda, Inc.

 * Based on localtimer.c, Copyright (C) 2002 ARM Ltd.

 *

 * This program is free software; you can redistribute it and/or modify it

 * under the terms and conditions of the GNU General Public License,

 * version 2, as published by the Free Software Foundation.

 *

 * This program is distributed in the hope it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for

 * more details.

 *

 * You should have received a copy of the GNU General Public License along with

 * this program.  If not, see <http://www.gnu.org/licenses/>.

 */

#include <linux/init.h>

#include <linux/clockchips.h>

#include <linux/of.h>

#include <linux/of_address.h>

#include <linux/of_irq.h>



#include <asm/smp_twd.h>



/*

 * Setup the local clock events for a CPU.

 */

int __cpuinit local_timer_setup(struct clock_event_device *evt)

{

	struct device_node *np;



	np = of_find_compatible_node(NULL, NULL, "arm,smp-twd");

	if (!twd_base) {

		twd_base = of_iomap(np, 0);

		WARN_ON(!twd_base);

	}

	evt->irq = irq_of_parse_and_map(np, 0);

	twd_timer_setup(evt);

	return 0;

}

CRA Git | Maintained and supported by SUSTech CRA and CCSE