arm64: dts: r8a7795: Add SYSC PM Domains

Add a device node for the System Controller.
Hook up the Cortex-A57 CPU cores and the Cortex-A57 and Cortex A53 L2
caches/SCUs to their respective PM Domains.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

diff --git a/arch/arm64/boot/dts/renesas/r8a7795.dtsi b/arch/arm64/boot/dts/renesas/r8a7795.dtsi
index 7cb2d72e7378301a83b6e493701daa5ff9799868..f96d0732b2a862884fa20e311debd75cd7924345 100644 (file)
--- a/arch/arm64/boot/dts/renesas/r8a7795.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a7795.dtsi
@@ -10,6 +10,7 @@
 
 #include <dt-bindings/clock/r8a7795-cpg-mssr.h>
 #include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/power/r8a7795-sysc.h>
 
 / {
        compatible = "renesas,r8a7795";
@@ -39,6 +40,7 @@
                        compatible = "arm,cortex-a57", "arm,armv8";
                        reg = <0x0>;
                        device_type = "cpu";
+                       power-domains = <&sysc R8A7795_PD_CA57_CPU0>;
                        next-level-cache = <&L2_CA57>;
                        enable-method = "psci";
                };
@@ -47,6 +49,7 @@
                        compatible = "arm,cortex-a57","arm,armv8";
                        reg = <0x1>;
                        device_type = "cpu";
+                       power-domains = <&sysc R8A7795_PD_CA57_CPU1>;
                        next-level-cache = <&L2_CA57>;
                        enable-method = "psci";
                };
@@ -54,6 +57,7 @@
                        compatible = "arm,cortex-a57","arm,armv8";
                        reg = <0x2>;
                        device_type = "cpu";
+                       power-domains = <&sysc R8A7795_PD_CA57_CPU2>;
                        next-level-cache = <&L2_CA57>;
                        enable-method = "psci";
                };
@@ -61,6 +65,7 @@
                        compatible = "arm,cortex-a57","arm,armv8";
                        reg = <0x3>;
                        device_type = "cpu";
+                       power-domains = <&sysc R8A7795_PD_CA57_CPU3>;
                        next-level-cache = <&L2_CA57>;
                        enable-method = "psci";
                };
@@ -68,12 +73,14 @@
 
        L2_CA57: cache-controller@0 {
                compatible = "cache";
+               power-domains = <&sysc R8A7795_PD_CA57_SCU>;
                cache-unified;
                cache-level = <2>;
        };
 
        L2_CA53: cache-controller@1 {
                compatible = "cache";
+               power-domains = <&sysc R8A7795_PD_CA53_SCU>;
                cache-unified;
                cache-level = <2>;
        };
@@ -302,6 +309,12 @@
                        #power-domain-cells = <0>;
                };
 
+               sysc: system-controller@e6180000 {
+                       compatible = "renesas,r8a7795-sysc";
+                       reg = <0 0xe6180000 0 0x0400>;
+                       #power-domain-cells = <1>;
+               };
+
                audma0: dma-controller@ec700000 {
                        compatible = "renesas,rcar-dmac";
                        reg = <0 0xec700000 0 0x10000>;