arm64: dts: renesas: Initial r8a774a1 SoC device tree

Basic support for the RZ/G2M SoC.

Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Reviewed-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

diff --git a/arch/arm64/boot/dts/renesas/r8a774a1.dtsi b/arch/arm64/boot/dts/renesas/r8a774a1.dtsi
new file mode 100644 (file)
index 0000000..8e63e9a
--- /dev/null
+++ b/arch/arm64/boot/dts/renesas/r8a774a1.dtsi
@@ -0,0 +1,190 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Device Tree Source for the r8a774a1 SoC
+ *
+ * Copyright (C) 2018 Renesas Electronics Corp.
+ */
+
+#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,r8a774a1";
+       #address-cells = <2>;
+       #size-cells = <2>;
+
+       /*
+        * The external audio clocks are configured as 0 Hz fixed frequency
+        * clocks by default.
+        * Boards that provide audio clocks should override them.
+        */
+       audio_clk_a: audio_clk_a {
+               compatible = "fixed-clock";
+               #clock-cells = <0>;
+               clock-frequency = <0>;
+       };
+
+       audio_clk_b: audio_clk_b {
+               compatible = "fixed-clock";
+               #clock-cells = <0>;
+               clock-frequency = <0>;
+       };
+
+       audio_clk_c: audio_clk_c {
+               compatible = "fixed-clock";
+               #clock-cells = <0>;
+               clock-frequency = <0>;
+       };
+
+       /* External CAN clock - to be overridden by boards that provide it */
+       can_clk: can {
+               compatible = "fixed-clock";
+               #clock-cells = <0>;
+               clock-frequency = <0>;
+       };
+
+       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 0>;
+                       next-level-cache = <&L2_CA57>;
+                       enable-method = "psci";
+                       clocks =<&cpg CPG_CORE 0>;
+               };
+
+               a57_1: cpu@1 {
+                       compatible = "arm,cortex-a57", "arm,armv8";
+                       reg = <0x1>;
+                       device_type = "cpu";
+                       power-domains = <&sysc 1>;
+                       next-level-cache = <&L2_CA57>;
+                       enable-method = "psci";
+                       clocks =<&cpg CPG_CORE 0>;
+               };
+
+               L2_CA57: cache-controller-0 {
+                       compatible = "cache";
+                       power-domains = <&sysc 12>;
+                       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 PCIe clock - can be overridden by the board */
+       pcie_bus_clk: pcie_bus {
+               compatible = "fixed-clock";
+               #clock-cells = <0>;
+               clock-frequency = <0>;
+       };
+
+       pmu_a57 {
+               compatible = "arm,cortex-a57-pmu";
+               interrupts-extended = <&gic GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>,
+                                     <&gic GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>;
+               interrupt-affinity = <&a57_0>, <&a57_1>;
+       };
+
+       psci {
+               compatible = "arm,psci-1.0", "arm,psci-0.2";
+               method = "smc";
+       };
+
+       /* 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;
+
+               cpg: clock-controller@e6150000 {
+                       compatible = "renesas,r8a774a1-cpg-mssr";
+                       reg = <0 0xe6150000 0 0x0bb0>;
+                       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,r8a774a1-rst";
+                       reg = <0 0xe6160000 0 0x018c>;
+               };
+
+               sysc: system-controller@e6180000 {
+                       compatible = "renesas,r8a774a1-sysc";
+                       reg = <0 0xe6180000 0 0x0400>;
+                       #power-domain-cells = <1>;
+               };
+
+               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(2) | IRQ_TYPE_LEVEL_HIGH)>;
+                       clocks = <&cpg CPG_MOD 408>;
+                       clock-names = "clk";
+                       power-domains = <&sysc 32>;
+                       resets = <&cpg 408>;
+               };
+
+               prr: chipid@fff00044 {
+                       compatible = "renesas,prr";
+                       reg = <0 0xfff00044 0 4>;
+               };
+       };
+
+       timer {
+               compatible = "arm,armv8-timer";
+               interrupts-extended = <&gic GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
+                                     <&gic GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
+                                     <&gic GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
+                                     <&gic GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>;
+       };
+
+       /* External USB clocks - can be overridden by the board */
+       usb3s0_clk: usb3s0 {
+               compatible = "fixed-clock";
+               #clock-cells = <0>;
+               clock-frequency = <0>;
+       };
+
+       usb_extal_clk: usb_extal {
+               compatible = "fixed-clock";
+               #clock-cells = <0>;
+               clock-frequency = <0>;
+       };
+};