On 04/03/2013 06:32 AM, Joseph Lo wrote:
> Architected timer is the local timer for Cortex-A15. Adding the support
> for Tegra.
> 
> Cc: John Stultz <[email protected]>
> Cc: Thomas Gleixner <[email protected]>
> Signed-off-by: Joseph Lo <[email protected]>

My patch series to add CLOCKSOURCE_OF_DECLARE support to arch timer and
sched_clock enhancements will make this unnecessary:

http://www.spinics.net/lists/arm-kernel/msg234597.html

Testing would be appreciated.

Rob

> ---
>  drivers/clocksource/tegra20_timer.c | 7 +++++--
>  1 file changed, 5 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/clocksource/tegra20_timer.c 
> b/drivers/clocksource/tegra20_timer.c
> index ae877b0..e443f44 100644
> --- a/drivers/clocksource/tegra20_timer.c
> +++ b/drivers/clocksource/tegra20_timer.c
> @@ -30,6 +30,7 @@
>  #include <asm/mach/time.h>
>  #include <asm/smp_twd.h>
>  #include <asm/sched_clock.h>
> +#include <asm/arch_timer.h>
>  
>  #define RTC_SECONDS            0x08
>  #define RTC_SHADOW_SECONDS     0x0c
> @@ -200,8 +201,6 @@ static void __init tegra20_init_timer(struct device_node 
> *np)
>               WARN(1, "Unknown clock rate");
>       }
>  
> -     setup_sched_clock(tegra_read_sched_clock, 32, 1000000);
> -
>       if (clocksource_mmio_init(timer_reg_base + TIMERUS_CNTR_1US,
>               "timer_us", 1000000, 300, 32, clocksource_mmio_readl_up)) {
>               pr_err("Failed to register clocksource\n");
> @@ -218,6 +217,10 @@ static void __init tegra20_init_timer(struct device_node 
> *np)
>       tegra_clockevent.irq = tegra_timer_irq.irq;
>       clockevents_config_and_register(&tegra_clockevent, 1000000,
>                                       0x1, 0x1fffffff);
> +     if (arch_timer_of_register())
> +             setup_sched_clock(tegra_read_sched_clock, 32, 1000000);
> +     else
> +             arch_timer_sched_clock_init();
>  }
>  CLOCKSOURCE_OF_DECLARE(tegra20_timer, "nvidia,tegra20-timer", 
> tegra20_init_timer);
>  
> 

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