1 files changed, 79 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/berlin2cd-valve-steamlink.dts b/arch/arm/boot/dts/berlin2cd-valve-steamlink.dts
new file mode 100644
index 000000000..79ac842ae
--- /dev/null
+++ b/arch/arm/boot/dts/berlin2cd-valve-steamlink.dts
@@ -0,0 +1,79 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Copyright 2018 Alexander Monakov <amonakov@gmail.com>
+ */
+/dts-v1/;
+
+#include "berlin2cd.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+	model = "Valve Steam Link";
+	compatible = "valve,steamlink", "marvell,berlin2cd", "marvell,berlin";
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x00000000 0x20000000>; /* 512 MB */
+	};
+
+	gpio-restart {
+		compatible = "gpio-restart";
+		gpios = <&porta 6 GPIO_ACTIVE_HIGH>;
+		active-delay = <100>;
+		inactive-delay = <10>;
+		wait-delay = <100>;
+		priority = <200>;
+	};
+};
+
+&cpu {
+	cpu-supply = <&vcpu>;
+	operating-points = <
+		/* kHz    uV */
+		1000000 1325000
+	>;
+};
+
+&i2c0 {
+	status = "okay";
+
+	/* There are two regulators on the board. One is accessible via I2C,
+	 * with buck1 providing SoC power (set up by bootloader to 1.325V or
+	 * less depending on leakage value in OTP), and buck2 likely used for
+	 * DRAM (providing 1.35V). The other regulator on the opposite side
+	 * of the board is probably supplying SDIO and NAND fixed voltages. */
+	regulator@19 {
+		compatible = "marvell,88pg868";
+		reg = <0x19>;
+
+		vcpu: buck1 {
+			regulator-boot-on;
+			regulator-always-on;
+			regulator-min-microvolt = <1000000>;
+			regulator-max-microvolt = <1325000>;
+		};
+	};
+};
+
+/* Fixed interface to on-board Marvell 8897 Wi-Fi/Bluetooth/NFC chip. */
+&sdhci0 {
+	keep-power-in-suspend;
+	non-removable;
+	status = "okay";
+};
+
+&uart0 {
+	/* RX/TX are routed to TP50/TP51 on the board. */
+	status = "okay";
+};
+
+/* The SoC is connected to on-board USB hub that in turn has one downstream
+ * port wired to the on-board Steam Controller wireless receiver chip. */
+&usb_phy1 { status = "okay"; };
+
+&usb1 {
+	dr_mode = "host";
+	status = "okay";
+};
+
+&eth1 { status = "okay"; };