arm64: dts: renesas: initial R8A77970 SoC device tree

The initial R8A77970 SoC device tree including Cortex-A53 CPU, GIC, timer,
CPG, RST, and SYSC.

Based on the original (and large) patch by Daisuke Matsushita
<daisuke.matsushita.ns@hitachi.com>.

Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

1 files changed, 125 insertions, 0 deletions

diff --git a/arch/arm64/boot/dts/renesas/r8a77970.dtsi b/arch/arm64/boot/dts/renesas/r8a77970.dtsi
new file mode 100644
index 000000000000..dec3492cd7dc
--- /dev/null
+++ b/arch/arm64/boot/dts/renesas/r8a77970.dtsi
@@ -0,0 +1,125 @@
+/*
+ * Device Tree Source for the r8a77970 SoC
+ *
+ * Copyright (C) 2016-2017 Renesas Electronics Corp.
+ * Copyright (C) 2017 Cogent Embedded, Inc.
+ *
+ * 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/interrupt-controller/irq.h>
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/clock/renesas-cpg-mssr.h>
+
+/ {
+	compatible = "renesas,r8a77970";
+	#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>;
+
+		a53_0: cpu@0 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a53", "arm,armv8";
+			reg = <0>;
+			clocks = <&cpg CPG_CORE 0>;
+			power-domains = <&sysc 5>;
+			next-level-cache = <&L2_CA53>;
+			enable-method = "psci";
+		};
+
+		L2_CA53: cache-controller {
+			compatible = "cache";
+			power-domains = <&sysc 21>;
+			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>;
+	};
+
+	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 = <0 0xf1010000 0 0x1000>,
+			      <0 0xf1020000 0 0x20000>,
+			      <0 0xf1040000 0 0x20000>,
+			      <0 0xf1060000 0 0x20000>;
+			interrupts = <GIC_PPI 9	(GIC_CPU_MASK_SIMPLE(1) |
+				      IRQ_TYPE_LEVEL_HIGH)>;
+			clocks = <&cpg CPG_MOD 408>;
+			clock-names = "clk";
+			power-domains = <&sysc 32>;
+			resets = <&cpg 408>;
+		};
+
+		timer {
+			compatible = "arm,armv8-timer";
+			interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(1) |
+						  IRQ_TYPE_LEVEL_LOW)>,
+				     <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(1) |
+						  IRQ_TYPE_LEVEL_LOW)>,
+				     <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(1) |
+						  IRQ_TYPE_LEVEL_LOW)>,
+				     <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(1) |
+						  IRQ_TYPE_LEVEL_LOW)>;
+		};
+
+		cpg: clock-controller@e6150000 {
+			compatible = "renesas,r8a77970-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,r8a77970-rst";
+			reg = <0 0xe6160000 0 0x200>;
+		};
+
+		sysc: system-controller@e6180000 {
+			compatible = "renesas,r8a77970-sysc";
+			reg = <0 0xe6180000 0 0x440>;
+			#power-domain-cells = <1>;
+		};
+
+		prr: chipid@fff00044 {
+			compatible = "renesas,prr";
+			reg = <0 0xfff00044 0 4>;
+		};
+	};
+};