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Diffstat (limited to 'dts/src/arm/berlin2cd-valve-steamlink.dts')
-rw-r--r--dts/src/arm/berlin2cd-valve-steamlink.dts79
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diff --git a/dts/src/arm/berlin2cd-valve-steamlink.dts b/dts/src/arm/berlin2cd-valve-steamlink.dts
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+// 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"; };