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/rk3399_rockchip-uboot/board/armltd/vexpress/
H A Dvexpress_tc2.c03ab5d136b43296b2eb7d4dd80196381aa719a09 Fri Sep 23 16:38:39 UTC 2016 Sudeep Holla <Sudeep.Holla@arm.com> vexpress: disable cci ace slave ports when booting in non-sec/hyp mode

Commit f225d39d3093 ("vexpress: Check TC2 firmware support before defaulting
to nonsec booting") added support to check if the firmware on TC2 is
configured appropriately before booting in nonsec/hyp mode.

However when booting in non-secure/hyp mode, CCI control must be done in
secure firmware and can't be done in non-secure/hyp mode. In order to
ensure that, this patch disables the cci slave port inteface so that it
is not accessed at all.

Cc: Jon Medhurst <tixy@linaro.org>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Acked-by: Jon Medhurst <tixy@linaro.org>
Tested-by: Jon Medhurst <tixy@linaro.org>
/rk3399_rockchip-uboot/configs/
H A Dvexpress_ca15_tc2_defconfig03ab5d136b43296b2eb7d4dd80196381aa719a09 Fri Sep 23 16:38:39 UTC 2016 Sudeep Holla <Sudeep.Holla@arm.com> vexpress: disable cci ace slave ports when booting in non-sec/hyp mode

Commit f225d39d3093 ("vexpress: Check TC2 firmware support before defaulting
to nonsec booting") added support to check if the firmware on TC2 is
configured appropriately before booting in nonsec/hyp mode.

However when booting in non-secure/hyp mode, CCI control must be done in
secure firmware and can't be done in non-secure/hyp mode. In order to
ensure that, this patch disables the cci slave port inteface so that it
is not accessed at all.

Cc: Jon Medhurst <tixy@linaro.org>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Acked-by: Jon Medhurst <tixy@linaro.org>
Tested-by: Jon Medhurst <tixy@linaro.org>