arm64: dts: r8a7796: Add SYSC PM Domains

Add a device node for the System Controller.
Hook up the Cortex-A57 CPU core and L2 cache/SCU to their respective PM
Domains.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

diff --git a/arch/arm64/boot/dts/renesas/r8a7796.dtsi b/arch/arm64/boot/dts/renesas/r8a7796.dtsi
index 178debf..85f0843 100644 (file)
--- a/arch/arm64/boot/dts/renesas/r8a7796.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a7796.dtsi
@@ -10,6 +10,7 @@
 
 #include <dt-bindings/clock/r8a7796-cpg-mssr.h>
 #include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/power/r8a7796-sysc.h>
 
 / {
        compatible = "renesas,r8a7796";
@@ -30,6 +31,7 @@
                        compatible = "arm,cortex-a57", "arm,armv8";
                        reg = <0x0>;
                        device_type = "cpu";
+                       power-domains = <&sysc R8A7796_PD_CA57_CPU0>;
                        next-level-cache = <&L2_CA57>;
                        enable-method = "psci";
                };
@@ -37,6 +39,7 @@
                L2_CA57: cache-controller@0 {
                        compatible = "cache";
                        reg = <0>;
+                       power-domains = <&sysc R8A7796_PD_CA57_SCU>;
                        cache-unified;
                        cache-level = <2>;
                };
@@ -104,6 +107,12 @@
                        #power-domain-cells = <0>;
                };
 
+               sysc: system-controller@e6180000 {
+                       compatible = "renesas,r8a7796-sysc";
+                       reg = <0 0xe6180000 0 0x0400>;
+                       #power-domain-cells = <1>;
+               };
+
                scif2: serial@e6e88000 {
                        compatible = "renesas,scif-r8a7796",
                                     "renesas,rcar-gen3-scif", "renesas,scif";