// SPDX-License-Identifier: (GPL-2.0 OR MIT) /* * Copyright 2018 Alexander Monakov */ /dts-v1/; #include "berlin2cd.dtsi" #include / { 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"; }; ð1 { status = "okay"; };