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@xxxxxx>
---
arch/arm/boot/dts/omap5.dtsi | 6 ++++++
arch/arm/mach-omap2/Kconfig | 1 +
arch/arm/mach-omap2/timer.c | 7 +++++++
3 files changed, 14 insertions(+)
diff --git a/arch/arm/boot/dts/omap5.dtsi b/arch/arm/boot/dts/omap5.dtsi
index 57e5270..9686056 100644
--- a/arch/arm/boot/dts/omap5.dtsi
+++ b/arch/arm/boot/dts/omap5.dtsi
@@ -73,6 +73,12 @@
<0x48212000 0x1000>;
};
+ arch-timer {
+ compatible = "arm,armv7-timer";
+ interrupts = <1 14 0x304>;
+ clock-frequency = <6140000>;
+ };
+
gpio1: gpio@4ae10000 {
compatible = "ti,omap4-gpio";
ti,hwmods = "gpio1";
diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
index 2120f90..53fb77c 100644
--- a/arch/arm/mach-omap2/Kconfig
+++ b/arch/arm/mach-omap2/Kconfig
@@ -73,6 +73,7 @@ config SOC_OMAP5
select ARM_GIC
select HAVE_SMP
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 9b17e6c..f74dbb2 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>
@@ -480,9 +481,15 @@ 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
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