[U-Boot] [PATCH] arm64 patch: gicv3 support

[Albert ARIBAUD <albert.u.boot@aribaud.net>]

Hi fenghua at phytium.com.cn,

On Wed, 15 Jan 2014 16:10:56 +0800, fenghua at phytium.com.cn wrote:

> From: David Feng <fenghua@phytium.com.cn>
> 
> This patch add gicv3 support to uboot armv8 platform.
> Modifications cover 4 source files, as follows:
>   gic.S: gicv3 initialization and sgi interrupt raising.
>   goc.h: gicv3 register definitions.
>   vexpress_aemv8a.h: add CONFIG_GICV2/CONFIG_GICV3 switch.
>   start.S: set SCR_EL3.NS bit to 1, gicv3 register of ICC_SRE_EL2
>            could be accessed only when SCR_EL3.NS=1.
>            set SCR_EL3.IRQ|FIQ|EA bits, reroute all interrupts to
>            el3 at all cores, slaves could be waken up by interrupt
>            only when the interrupt is routed to it when running
>            at el3.
> Note: please use the latest gcc 4.8 compiler from linaro 
>       which support gicv3 system register assembling.
> 
> Signed-off-by: David Feng <fenghua@phytium.com.cn>
> ---

I am not well-versed enough in aarch64 and GIC, be it v2 or v3, so...
Is this patch OK as it is, or should a V2 follow with common GIVv2/GICv3
code merged?

Amicalement,
-- 
Albert.