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.

Acked-by: Benoit Cousson <b-cousson@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>

3 files changed, 20 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/omap5.dtsi b/arch/arm/boot/dts/omap5.dtsi
index 57e527083746..7b986eddd0b9 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 4b773fd56978..4609163b0395 100644
--- a/arch/arm/mach-omap2/Kconfig
+++ b/arch/arm/mach-omap2/Kconfig
@@ -74,6 +74,7 @@ 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 026fcfff6698..2c5a45d8ca8c 100644
--- a/arch/arm/mach-omap2/timer.c
+++ b/arch/arm/mach-omap2/timer.c
@@ -41,6 +41,7 @@
 #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>
@@ -488,9 +489,15 @@ 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