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