ARM: rockchip: add snoop-control-unit

This adds the device-node and config select to enable the
scu in all Rockchip Cortex-A9 SoCs.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Ulrich Prinz <ulrich.prinz@googlemail.com>

2 files changed, 6 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/rk3xxx.dtsi b/arch/arm/boot/dts/rk3xxx.dtsi
index 0fcbcfd67de2..0a3d5b131eba 100644
--- a/arch/arm/boot/dts/rk3xxx.dtsi
+++ b/arch/arm/boot/dts/rk3xxx.dtsi
@@ -26,6 +26,11 @@
                 compatible = "simple-bus";
                 ranges;
 
+                scu@1013c000 {
+                        compatible = "arm,cortex-a9-scu";
+                        reg = <0x1013c000 0x100>;
+                };
+
                 gic: interrupt-controller@1013d000 {
                         compatible = "arm,cortex-a9-gic";
                         interrupt-controller;
diff --git a/arch/arm/mach-rockchip/Kconfig b/arch/arm/mach-rockchip/Kconfig
index cf073dea5784..133410e178a7 100644
--- a/arch/arm/mach-rockchip/Kconfig
+++ b/arch/arm/mach-rockchip/Kconfig
@@ -5,6 +5,7 @@ config ARCH_ROCKCHIP
         select ARCH_REQUIRE_GPIOLIB
         select ARM_GIC
         select CACHE_L2X0
+        select HAVE_ARM_SCU if SMP
         select HAVE_ARM_TWD if SMP
         select HAVE_SMP
         select COMMON_CLK