Actions Semi ARM based SoC DT for v4.15

This updates the Guitar board DT with a clock node for the debug UART
 and adds a new DT for the CubieBoard6.
 It also updates the S500 DT with CPU power domains.
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Merge tag 'actions-arm-dt-for-4.15' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/afaerber/linux-actions into next/dt

Pull "Actions Semi ARM based SoC DT for v4.15" from Andreas Färber:

This updates the Guitar board DT with a clock node for the debug UART
and adds a new DT for the CubieBoard6.
It also updates the S500 DT with CPU power domains.

* tag 'actions-arm-dt-for-4.15' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/afaerber/linux-actions:
  ARM: dts: owl-s500: Add CubieBoard6
  dt-bindings: arm: actions: Add CubieBoard6
  ARM: dts: owl-s500-guitar-bb-rev-b: Add fake uart3 clock
  ARM: dts: owl-s500: Set power domains for CPU2 and CPU3

Documentation/devicetree/bindings/arm/actions.txt

@@ -21,6 +21,7 @@ Boards:
 
 Root node property compatible must contain, depending on board:
 
+ - Cubietech CubieBoard6: "cubietech,cubieboard6"
  - LeMaker Guitar Base Board rev. B: "lemaker,guitar-bb-rev-b", "lemaker,guitar"
 
 

arch/arm/boot/dts/Makefile

@@ -705,6 +705,7 @@ dtb-$(CONFIG_ARCH_ORION5X) += \
 	orion5x-netgear-wnr854t.dtb \
 	orion5x-rd88f5182-nas.dtb
 dtb-$(CONFIG_ARCH_ACTIONS) += \
+	owl-s500-cubieboard6.dtb \
 	owl-s500-guitar-bb-rev-b.dtb
 dtb-$(CONFIG_ARCH_PRIMA2) += \
 	prima2-evb.dtb

arch/arm/boot/dts/owl-s500-cubieboard6.dts

@@ -0,0 +1,44 @@
+/*
+ * Cubietech CubieBoard6
+ *
+ * Copyright (c) 2017 Andreas Färber
+ *
+ * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+ */
+
+/dts-v1/;
+
+#include "owl-s500.dtsi"
+
+/ {
+	compatible = "cubietech,cubieboard6", "actions,s500";
+	model = "CubieBoard6";
+
+	aliases {
+		serial3 = &uart3;
+	};
+
+	chosen {
+		stdout-path = "serial3:115200n8";
+	};
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x0 0x80000000>;
+	};
+
+	uart3_clk: uart3-clk {
+		compatible = "fixed-clock";
+		clock-frequency = <921600>;
+		#clock-cells = <0>;
+	};
+};
+
+&timer {
+	clocks = <&hosc>;
+};
+
+&uart3 {
+	status = "okay";
+	clocks = <&uart3_clk>;
+};

arch/arm/boot/dts/owl-s500-guitar-bb-rev-b.dts

@@ -19,8 +19,15 @@
 	chosen {
 		stdout-path = "serial3:115200n8";
 	};
+
+	uart3_clk: uart3-clk {
+		compatible = "fixed-clock";
+		clock-frequency = <921600>;
+		#clock-cells = <0>;
+	};
 };
 
 &uart3 {
 	status = "okay";
+	clocks = <&uart3_clk>;
 };

arch/arm/boot/dts/owl-s500.dtsi

@@ -7,6 +7,7 @@
  */
 
 #include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/power/owl-s500-powergate.h>
 
 / {
 	compatible = "actions,s500";
@@ -43,6 +44,7 @@
 			compatible = "arm,cortex-a9";
 			reg = <0x2>;
 			enable-method = "actions,s500-smp";
+			power-domains = <&sps S500_PD_CPU2>;
 		};
 
 		cpu3: cpu@3 {
@@ -50,6 +52,7 @@
 			compatible = "arm,cortex-a9";
 			reg = <0x3>;
 			enable-method = "actions,s500-smp";
+			power-domains = <&sps S500_PD_CPU3>;
 		};
 	};