[U-Boot] [PATCH] Armv8: Initializing CNTVOFF_EL2

[Albert ARIBAUD]

Hello fenghua at phytium.com.cn,

On Mon,  2 Mar 2015 15:29:34 +0800, fenghua at phytium.com.cn <fenghua at phytium.com.cn> wrote:
> From: David Feng <fenghua at phytium.com.cn>
> 
> Linux-arm64 require that CNTVOFF_EL2 should be programmed with
> a consistent value on all cpus. Initializing CNTVOFF_EL2 at state
> transition instead of start.S could prevent potential different value
> on cpus if ATF exist and u-boot runs at only one cpu.
> 
> Signed-off-by: David Feng <fenghua at phytium.com.cn>
> ---
>  arch/arm/include/asm/macro.h |    3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/arch/arm/include/asm/macro.h b/arch/arm/include/asm/macro.h
> index 1c8c425..39df86a 100644
> --- a/arch/arm/include/asm/macro.h
> +++ b/arch/arm/include/asm/macro.h
> @@ -113,6 +113,9 @@ lr	.req	x30
>  	mov	\xreg1, #0x33ff
>  	msr	cptr_el2, \xreg1	/* Disable coprocessor traps to EL2 */
>  
> +	/* Initialize Generic Timers */
> +	msr	cntvoff_el2, xzr
> +
>  	/* Initialize SCTLR_EL2
>  	 *
>  	 * setting RES1 bits (29,28,23,22,18,16,11,5,4) to 1
> -- 
> 1.7.9.5
> 
> 

Applied to u-boot-arm/master, thanks!

Amicalement,
-- 
Albert.