From 705beb9ed800c7a998e4ecb717ad0e6a6ad5e01e Mon Sep 17 00:00:00 2001
From: Santosh Shilimkar <santosh.shilimkar@ti.com>
Date: Mon, 13 Aug 2012 14:39:03 +0530
Subject: [PATCH 2/2] ARM: OMAP5: Enable arch timer support

Enable Cortex A15 generic timer support for OMAP5 based SOCs.
The CPU local timers run on the free running real time counter clock.

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
---
 arch/arm/boot/dts/omap5.dtsi |   12 ++++++++++++
 arch/arm/mach-omap2/Kconfig  |    1 +
 arch/arm/mach-omap2/timer.c  |    7 +++++++
 3 files changed, 20 insertions(+)

diff --git a/arch/arm/boot/dts/omap5.dtsi b/arch/arm/boot/dts/omap5.dtsi
index 9ac75b3..5db33f4 100644
--- a/arch/arm/boot/dts/omap5.dtsi
+++ b/arch/arm/boot/dts/omap5.dtsi
@@ -33,9 +33,21 @@
 	cpus {
 		cpu@0 {
 			compatible = "arm,cortex-a15";
+			timer {
+				compatible = "arm,armv7-timer";
+				/* 14th PPI IRQ, active low level-sensitive */
+				interrupts = <1 14 0x308>;
+				clock-frequency = <6144000>;
+			};
 		};
 		cpu@1 {
 			compatible = "arm,cortex-a15";
+			timer {
+				compatible = "arm,armv7-timer";
+				/* 14th PPI IRQ, active low level-sensitive */
+				interrupts = <1 14 0x308>;
+				clock-frequency = <6144000>;
+			};
 		};
 	};
 
diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
index 1ef12b2..914e9d5 100644
--- a/arch/arm/mach-omap2/Kconfig
+++ b/arch/arm/mach-omap2/Kconfig
@@ -75,6 +75,7 @@ config SOC_OMAP5
 	select HAVE_SMP
 	select ARM_CPU_SUSPEND if PM
 	select SOC_HAS_REALTIME_COUNTER
+	select ARM_ARCH_TIMER
 
 comment "OMAP Core Type"
 	depends on ARCH_OMAP2
diff --git a/arch/arm/mach-omap2/timer.c b/arch/arm/mach-omap2/timer.c
index 85b85bb..96a77cc 100644
--- a/arch/arm/mach-omap2/timer.c
+++ b/arch/arm/mach-omap2/timer.c
@@ -42,6 +42,7 @@
 #include <plat/dmtimer.h>
 #include <asm/smp_twd.h>
 #include <asm/sched_clock.h>
+#include <asm/arch_timer.h>
 #include "common.h"
 #include <plat/omap_hwmod.h>
 #include <plat/omap_device.h>
@@ -487,9 +488,15 @@ OMAP_SYS_TIMER(4)
 #ifdef CONFIG_SOC_OMAP5
 static void __init omap5_timer_init(void)
 {
+	int err;
+
 	omap2_gp_clockevent_init(1, OMAP4_CLKEV_SOURCE);
 	omap2_clocksource_init(2, OMAP4_MPU_SOURCE);
 	realtime_counter_init();
+
+	err = arch_timer_of_register();
+	if (err)
+		pr_err("%s: arch_timer_register failed %d\n", __func__, err);
 }
 OMAP_SYS_TIMER(5)
 #endif
-- 
1.7.9.5