ARM: dts: Import SEI610 DT from Linux 5.4-rc2

Import the Amlogic SM1 DT and the SEI610 board DT from [1]

[1] da0c9ea146cb ("Linux 5.4-rc2")

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
diff --git a/arch/arm/dts/meson-sm1.dtsi b/arch/arm/dts/meson-sm1.dtsi
new file mode 100644
index 0000000..521573f
--- /dev/null
+++ b/arch/arm/dts/meson-sm1.dtsi
@@ -0,0 +1,147 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2019 BayLibre, SAS
+ * Author: Neil Armstrong <narmstrong@baylibre.com>
+ */
+
+#include "meson-g12-common.dtsi"
+#include <dt-bindings/power/meson-sm1-power.h>
+
+/ {
+	compatible = "amlogic,sm1";
+
+	cpus {
+		#address-cells = <0x2>;
+		#size-cells = <0x0>;
+
+		cpu0: cpu@0 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a55";
+			reg = <0x0 0x0>;
+			enable-method = "psci";
+			next-level-cache = <&l2>;
+		};
+
+		cpu1: cpu@1 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a55";
+			reg = <0x0 0x1>;
+			enable-method = "psci";
+			next-level-cache = <&l2>;
+		};
+
+		cpu2: cpu@2 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a55";
+			reg = <0x0 0x2>;
+			enable-method = "psci";
+			next-level-cache = <&l2>;
+		};
+
+		cpu3: cpu@3 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a55";
+			reg = <0x0 0x3>;
+			enable-method = "psci";
+			next-level-cache = <&l2>;
+		};
+
+		l2: l2-cache0 {
+			compatible = "cache";
+		};
+	};
+
+	cpu_opp_table: opp-table {
+		compatible = "operating-points-v2";
+		opp-shared;
+
+		opp-100000000 {
+			opp-hz = /bits/ 64 <100000000>;
+			opp-microvolt = <730000>;
+		};
+
+		opp-250000000 {
+			opp-hz = /bits/ 64 <250000000>;
+			opp-microvolt = <730000>;
+		};
+
+		opp-500000000 {
+			opp-hz = /bits/ 64 <500000000>;
+			opp-microvolt = <730000>;
+		};
+
+		opp-667000000 {
+			opp-hz = /bits/ 64 <666666666>;
+			opp-microvolt = <750000>;
+		};
+
+		opp-1000000000 {
+			opp-hz = /bits/ 64 <1000000000>;
+			opp-microvolt = <770000>;
+		};
+
+		opp-1200000000 {
+			opp-hz = /bits/ 64 <1200000000>;
+			opp-microvolt = <780000>;
+		};
+
+		opp-1404000000 {
+			opp-hz = /bits/ 64 <1404000000>;
+			opp-microvolt = <790000>;
+		};
+
+		opp-1512000000 {
+			opp-hz = /bits/ 64 <1500000000>;
+			opp-microvolt = <800000>;
+		};
+
+		opp-1608000000 {
+			opp-hz = /bits/ 64 <1608000000>;
+			opp-microvolt = <810000>;
+		};
+
+		opp-1704000000 {
+			opp-hz = /bits/ 64 <1704000000>;
+			opp-microvolt = <850000>;
+		};
+
+		opp-1800000000 {
+			opp-hz = /bits/ 64 <1800000000>;
+			opp-microvolt = <900000>;
+		};
+
+		opp-1908000000 {
+			opp-hz = /bits/ 64 <1908000000>;
+			opp-microvolt = <950000>;
+		};
+	};
+};
+
+&cecb_AO {
+	compatible = "amlogic,meson-sm1-ao-cec";
+};
+
+&clk_msr {
+	compatible = "amlogic,meson-sm1-clk-measure";
+};
+
+
+&clkc {
+	compatible = "amlogic,sm1-clkc";
+};
+
+&ethmac {
+	power-domains = <&pwrc PWRC_SM1_ETH_ID>;
+};
+
+&pwrc {
+	compatible = "amlogic,meson-sm1-pwrc";
+};
+
+&vpu {
+	power-domains = <&pwrc PWRC_SM1_VPU_ID>;
+};
+
+&usb {
+	power-domains = <&pwrc PWRC_SM1_USB_ID>;
+};