[U-Boot] [PATCH 6/6] armv8: Allow SoCs to override the generic timer

[FengHua]

hi Thierry,

> -----Original Messages-----
> From: "Thierry Reding" <thierry.reding at gmail.com>
> Sent Time: 2015-03-20 19:47:53 (Friday)
> To: u-boot at lists.denx.de
> Cc: "Marc Zyngier" <marc.zyngier at arm.com>
> Subject: [U-Boot] [PATCH 6/6] armv8: Allow SoCs to override the generic timer
> 
> From: Thierry Reding <treding at nvidia.com>
> 
> Some SoCs come with a custom timer interface, so allow them to use that
> instead.
Arch timer is always available when core running, 
It's better to use arch timer instead of other custom timer interface.

> 
> Cc: Albert Aribaud <albert.u.boot at aribaud.net>
> Cc: Marc Zyngier <marc.zyngier at arm.com>
> Signed-off-by: Thierry Reding <treding at nvidia.com>
> ---
>  arch/arm/cpu/armv8/generic_timer.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/arch/arm/cpu/armv8/generic_timer.c b/arch/arm/cpu/armv8/generic_timer.c
> index 223b95e210ed..ab8573fc7cef 100644
> --- a/arch/arm/cpu/armv8/generic_timer.c
> +++ b/arch/arm/cpu/armv8/generic_timer.c
> @@ -9,6 +9,7 @@
>  #include <command.h>
>  #include <asm/system.h>
>  
> +#ifndef CONFIG_SYS_TIMER_COUNTER
>  /*
>   * Generic timer implementation of get_tbclk()
>   */
> @@ -29,3 +30,4 @@ unsigned long timer_read_counter(void)
>  	asm volatile("mrs %0, cntpct_el0" : "=r" (cntpct));
>  	return cntpct;
>  }
> +#endif
> -- 
> 2.3.2
> 

Yours.