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: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>

4 files changed, 7 insertions, 45 deletions

diff --git a/arch/arm/boot/dts/highbank.dts b/arch/arm/boot/dts/highbank.dts
index 305635bd45c0..37c0ff9c8b90 100644
--- a/arch/arm/boot/dts/highbank.dts
+++ b/arch/arm/boot/dts/highbank.dts
@@ -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 {
diff --git a/arch/arm/mach-highbank/Makefile b/arch/arm/mach-highbank/Makefile
index 986958a5a720..f8437dd238c2 100644
--- a/arch/arm/mach-highbank/Makefile
+++ b/arch/arm/mach-highbank/Makefile
@@ -1,6 +1,5 @@
 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
diff --git a/arch/arm/mach-highbank/highbank.c b/arch/arm/mach-highbank/highbank.c
index 8394d512a402..bb1684f9b68b 100644
--- a/arch/arm/mach-highbank/highbank.c
+++ b/arch/arm/mach-highbank/highbank.c
@@ -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 = {
diff --git a/arch/arm/mach-highbank/localtimer.c b/arch/arm/mach-highbank/localtimer.c
deleted file mode 100644
index 5a00e7945fdf..000000000000
--- a/arch/arm/mach-highbank/localtimer.c
+++ /dev/null
@@ -1,40 +0,0 @@
-/*
- * 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;
-}