From mboxrd@z Thu Jan  1 00:00:00 1970
From: York Sun <yorksun@freescale.com>
Date: Thu, 19 Nov 2015 08:56:25 -0800
Subject: [U-Boot] [PATCH 1/5][v2] armv8: usec2ticks function defined
In-Reply-To: <1447911713-28639-1-git-send-email-aneesh.bansal@freescale.com>
References: <1447911713-28639-1-git-send-email-aneesh.bansal@freescale.com>
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On 11/18/2015 09:41 PM, Aneesh Bansal wrote:
> usec2ticks() function has been defined for ARMv8 which will
> be used by SEC Driver.
> 
> Signed-off-by: Aneesh Bansal <aneesh.bansal@freescale.com>
> ---
> Changes in v2:
> New Patch Set created with an additional patch.
> 
>  arch/arm/cpu/armv8/generic_timer.c | 11 +++++++++++
>  1 file changed, 11 insertions(+)
> 
> diff --git a/arch/arm/cpu/armv8/generic_timer.c b/arch/arm/cpu/armv8/generic_timer.c
> index 8e60bae..8f47a82 100644
> --- a/arch/arm/cpu/armv8/generic_timer.c
> +++ b/arch/arm/cpu/armv8/generic_timer.c
> @@ -40,3 +40,14 @@ unsigned long timer_read_counter(void)
>  #endif
>  	return cntpct;
>  }
> +
> +unsigned long usec2ticks(unsigned long usec)
> +{
> +	ulong ticks;
> +	if (usec < 1000)
> +		ticks = ((usec * (get_tbclk()/1000)) + 500) / 1000;
> +	else
> +		ticks = ((usec / 10) * (get_tbclk() / 100000));
> +
> +	return ticks;
> +}
> 

Is existing usec_to_tick() in lib/time.c good for you?

York