arm64: dts: r8a7795es2: Add Renesas R8A7795 ES2.0 SoC Support

Add basic support for the R-Car H3 ES2.0 SoC:
  - PSCI,
  - CPU cores and L2 caches,
  - Architecture timer, GIC, and PMU,
  - Basic clocks,
  - Reset and system controllers,
  - Watchdog,
  - SCIF2,
  - Product register,
  - GPIO and Pin Function Controller,
  - Ethernet AVB.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
diff --git a/arch/arm64/boot/dts/renesas/r8a7795es2.dtsi b/arch/arm64/boot/dts/renesas/r8a7795es2.dtsi
new file mode 100644
index 0000000..01825a2fa
--- /dev/null
+++ b/arch/arm64/boot/dts/renesas/r8a7795es2.dtsi
@@ -0,0 +1,419 @@
+/*
+ * Device Tree Source for the r8a7795 ES2.0 SoC
+ *
+ * Copyright (C) 2015 Renesas Electronics Corp.
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2.  This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+#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";
+	#address-cells = <2>;
+	#size-cells = <2>;
+
+	psci {
+		compatible = "arm,psci-1.0", "arm,psci-0.2";
+		method = "smc";
+	};
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		a57_0: cpu@0 {
+			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";
+			clocks =<&cpg CPG_CORE R8A7795_CLK_Z>;
+		};
+
+		a57_1: cpu@1 {
+			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";
+		};
+
+		a57_2: cpu@2 {
+			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";
+		};
+
+		a57_3: cpu@3 {
+			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";
+		};
+
+		a53_0: cpu@100 {
+			compatible = "arm,cortex-a53", "arm,armv8";
+			reg = <0x100>;
+			device_type = "cpu";
+			power-domains = <&sysc R8A7795_PD_CA53_CPU0>;
+			next-level-cache = <&L2_CA53>;
+			enable-method = "psci";
+		};
+
+		a53_1: cpu@101 {
+			compatible = "arm,cortex-a53","arm,armv8";
+			reg = <0x101>;
+			device_type = "cpu";
+			power-domains = <&sysc R8A7795_PD_CA53_CPU1>;
+			next-level-cache = <&L2_CA53>;
+			enable-method = "psci";
+		};
+
+		a53_2: cpu@102 {
+			compatible = "arm,cortex-a53","arm,armv8";
+			reg = <0x102>;
+			device_type = "cpu";
+			power-domains = <&sysc R8A7795_PD_CA53_CPU2>;
+			next-level-cache = <&L2_CA53>;
+			enable-method = "psci";
+		};
+
+		a53_3: cpu@103 {
+			compatible = "arm,cortex-a53","arm,armv8";
+			reg = <0x103>;
+			device_type = "cpu";
+			power-domains = <&sysc R8A7795_PD_CA53_CPU3>;
+			next-level-cache = <&L2_CA53>;
+			enable-method = "psci";
+		};
+
+		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>;
+		};
+	};
+
+	extal_clk: extal {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		/* This value must be overridden by the board */
+		clock-frequency = <0>;
+	};
+
+	extalr_clk: extalr {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		/* This value must be overridden by the board */
+		clock-frequency = <0>;
+	};
+
+	/* External SCIF clock - to be overridden by boards that provide it */
+	scif_clk: scif {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <0>;
+	};
+
+	soc {
+		compatible = "simple-bus";
+		interrupt-parent = <&gic>;
+
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		gic: interrupt-controller@f1010000 {
+			compatible = "arm,gic-400";
+			#interrupt-cells = <3>;
+			#address-cells = <0>;
+			interrupt-controller;
+			reg = <0x0 0xf1010000 0 0x1000>,
+			      <0x0 0xf1020000 0 0x20000>,
+			      <0x0 0xf1040000 0 0x20000>,
+			      <0x0 0xf1060000 0 0x20000>;
+			interrupts = <GIC_PPI 9
+					(GIC_CPU_MASK_SIMPLE(8) | IRQ_TYPE_LEVEL_HIGH)>;
+			clocks = <&cpg CPG_MOD 408>;
+			clock-names = "clk";
+			power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
+			resets = <&cpg 408>;
+		};
+
+		wdt0: watchdog@e6020000 {
+			compatible = "renesas,r8a7795-wdt",
+				     "renesas,rcar-gen3-wdt";
+			reg = <0 0xe6020000 0 0x0c>;
+			clocks = <&cpg CPG_MOD 402>;
+			power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
+			resets = <&cpg 402>;
+			status = "disabled";
+		};
+
+		gpio0: gpio@e6050000 {
+			compatible = "renesas,gpio-r8a7795",
+				     "renesas,gpio-rcar";
+			reg = <0 0xe6050000 0 0x50>;
+			interrupts = <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>;
+			#gpio-cells = <2>;
+			gpio-controller;
+			gpio-ranges = <&pfc 0 0 16>;
+			#interrupt-cells = <2>;
+			interrupt-controller;
+			clocks = <&cpg CPG_MOD 912>;
+			power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
+			resets = <&cpg 912>;
+		};
+
+		gpio1: gpio@e6051000 {
+			compatible = "renesas,gpio-r8a7795",
+				     "renesas,gpio-rcar";
+			reg = <0 0xe6051000 0 0x50>;
+			interrupts = <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>;
+			#gpio-cells = <2>;
+			gpio-controller;
+			gpio-ranges = <&pfc 0 32 28>;
+			#interrupt-cells = <2>;
+			interrupt-controller;
+			clocks = <&cpg CPG_MOD 911>;
+			power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
+			resets = <&cpg 911>;
+		};
+
+		gpio2: gpio@e6052000 {
+			compatible = "renesas,gpio-r8a7795",
+				     "renesas,gpio-rcar";
+			reg = <0 0xe6052000 0 0x50>;
+			interrupts = <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>;
+			#gpio-cells = <2>;
+			gpio-controller;
+			gpio-ranges = <&pfc 0 64 15>;
+			#interrupt-cells = <2>;
+			interrupt-controller;
+			clocks = <&cpg CPG_MOD 910>;
+			power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
+			resets = <&cpg 910>;
+		};
+
+		gpio3: gpio@e6053000 {
+			compatible = "renesas,gpio-r8a7795",
+				     "renesas,gpio-rcar";
+			reg = <0 0xe6053000 0 0x50>;
+			interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>;
+			#gpio-cells = <2>;
+			gpio-controller;
+			gpio-ranges = <&pfc 0 96 16>;
+			#interrupt-cells = <2>;
+			interrupt-controller;
+			clocks = <&cpg CPG_MOD 909>;
+			power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
+			resets = <&cpg 909>;
+		};
+
+		gpio4: gpio@e6054000 {
+			compatible = "renesas,gpio-r8a7795",
+				     "renesas,gpio-rcar";
+			reg = <0 0xe6054000 0 0x50>;
+			interrupts = <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>;
+			#gpio-cells = <2>;
+			gpio-controller;
+			gpio-ranges = <&pfc 0 128 18>;
+			#interrupt-cells = <2>;
+			interrupt-controller;
+			clocks = <&cpg CPG_MOD 908>;
+			power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
+			resets = <&cpg 908>;
+		};
+
+		gpio5: gpio@e6055000 {
+			compatible = "renesas,gpio-r8a7795",
+				     "renesas,gpio-rcar";
+			reg = <0 0xe6055000 0 0x50>;
+			interrupts = <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>;
+			#gpio-cells = <2>;
+			gpio-controller;
+			gpio-ranges = <&pfc 0 160 26>;
+			#interrupt-cells = <2>;
+			interrupt-controller;
+			clocks = <&cpg CPG_MOD 907>;
+			power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
+			resets = <&cpg 907>;
+		};
+
+		gpio6: gpio@e6055400 {
+			compatible = "renesas,gpio-r8a7795",
+				     "renesas,gpio-rcar";
+			reg = <0 0xe6055400 0 0x50>;
+			interrupts = <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>;
+			#gpio-cells = <2>;
+			gpio-controller;
+			gpio-ranges = <&pfc 0 192 32>;
+			#interrupt-cells = <2>;
+			interrupt-controller;
+			clocks = <&cpg CPG_MOD 906>;
+			power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
+			resets = <&cpg 906>;
+		};
+
+		gpio7: gpio@e6055800 {
+			compatible = "renesas,gpio-r8a7795",
+				     "renesas,gpio-rcar";
+			reg = <0 0xe6055800 0 0x50>;
+			interrupts = <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>;
+			#gpio-cells = <2>;
+			gpio-controller;
+			gpio-ranges = <&pfc 0 224 4>;
+			#interrupt-cells = <2>;
+			interrupt-controller;
+			clocks = <&cpg CPG_MOD 905>;
+			power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
+			resets = <&cpg 905>;
+		};
+
+		pmu_a57 {
+			compatible = "arm,cortex-a57-pmu";
+			interrupts = <GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 75 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-affinity = <&a57_0>,
+					     <&a57_1>,
+					     <&a57_2>,
+					     <&a57_3>;
+		};
+
+		pmu_a53 {
+			compatible = "arm,cortex-a53-pmu";
+			interrupts = <GIC_SPI 84 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 87 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-affinity = <&a53_0>,
+					     <&a53_1>,
+					     <&a53_2>,
+					     <&a53_3>;
+		};
+
+		timer {
+			compatible = "arm,armv8-timer";
+			interrupts = <GIC_PPI 13
+					(GIC_CPU_MASK_SIMPLE(8) | IRQ_TYPE_LEVEL_LOW)>,
+				     <GIC_PPI 14
+					(GIC_CPU_MASK_SIMPLE(8) | IRQ_TYPE_LEVEL_LOW)>,
+				     <GIC_PPI 11
+					(GIC_CPU_MASK_SIMPLE(8) | IRQ_TYPE_LEVEL_LOW)>,
+				     <GIC_PPI 10
+					(GIC_CPU_MASK_SIMPLE(8) | IRQ_TYPE_LEVEL_LOW)>;
+		};
+
+		cpg: clock-controller@e6150000 {
+			compatible = "renesas,r8a7795-cpg-mssr";
+			reg = <0 0xe6150000 0 0x1000>;
+			clocks = <&extal_clk>, <&extalr_clk>;
+			clock-names = "extal", "extalr";
+			#clock-cells = <2>;
+			#power-domain-cells = <0>;
+			#reset-cells = <1>;
+		};
+
+		rst: reset-controller@e6160000 {
+			compatible = "renesas,r8a7795-rst";
+			reg = <0 0xe6160000 0 0x0200>;
+		};
+
+		prr: chipid@fff00044 {
+			compatible = "renesas,prr";
+			reg = <0 0xfff00044 0 4>;
+		};
+
+		sysc: system-controller@e6180000 {
+			compatible = "renesas,r8a7795-sysc";
+			reg = <0 0xe6180000 0 0x0400>;
+			#power-domain-cells = <1>;
+		};
+
+		pfc: pfc@e6060000 {
+			compatible = "renesas,pfc-r8a7795";
+			reg = <0 0xe6060000 0 0x50c>;
+		};
+
+		avb: ethernet@e6800000 {
+			compatible = "renesas,etheravb-r8a7795",
+				     "renesas,etheravb-rcar-gen3";
+			reg = <0 0xe6800000 0 0x800>, <0 0xe6a00000 0 0x10000>;
+			interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 42 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 43 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 46 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 50 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 51 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 52 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 53 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 54 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 56 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 57 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 58 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 59 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 60 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 61 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 62 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 63 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "ch0", "ch1", "ch2", "ch3",
+					  "ch4", "ch5", "ch6", "ch7",
+					  "ch8", "ch9", "ch10", "ch11",
+					  "ch12", "ch13", "ch14", "ch15",
+					  "ch16", "ch17", "ch18", "ch19",
+					  "ch20", "ch21", "ch22", "ch23",
+					  "ch24";
+			clocks = <&cpg CPG_MOD 812>;
+			power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
+			resets = <&cpg 812>;
+			phy-mode = "rgmii-txid";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
+
+		scif2: serial@e6e88000 {
+			compatible = "renesas,scif-r8a7795",
+				     "renesas,rcar-gen3-scif", "renesas,scif";
+			reg = <0 0xe6e88000 0 64>;
+			interrupts = <GIC_SPI 164 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD 310>,
+				 <&cpg CPG_CORE R8A7795_CLK_S3D1>,
+				 <&scif_clk>;
+			clock-names = "fck", "brg_int", "scif_clk";
+			power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
+			resets = <&cpg 310>;
+			status = "disabled";
+		};
+	};
+};