80 lines
1.7 KiB
Plaintext
80 lines
1.7 KiB
Plaintext
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// SPDX-License-Identifier: (GPL-2.0 OR MIT)
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/*
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* Copyright 2018 Alexander Monakov <amonakov@gmail.com>
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*/
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/dts-v1/;
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#include "berlin2cd.dtsi"
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#include <dt-bindings/gpio/gpio.h>
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/ {
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model = "Valve Steam Link";
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compatible = "valve,steamlink", "marvell,berlin2cd", "marvell,berlin";
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memory@0 {
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device_type = "memory";
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reg = <0x00000000 0x20000000>; /* 512 MB */
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};
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gpio-restart {
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compatible = "gpio-restart";
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gpios = <&porta 6 GPIO_ACTIVE_HIGH>;
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active-delay = <100>;
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inactive-delay = <10>;
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wait-delay = <100>;
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priority = <200>;
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};
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};
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&cpu {
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cpu-supply = <&vcpu>;
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operating-points = <
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/* kHz uV */
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1000000 1325000
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>;
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};
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&i2c0 {
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status = "okay";
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/* There are two regulators on the board. One is accessible via I2C,
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* with buck1 providing SoC power (set up by bootloader to 1.325V or
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* less depending on leakage value in OTP), and buck2 likely used for
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* DRAM (providing 1.35V). The other regulator on the opposite side
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* of the board is probably supplying SDIO and NAND fixed voltages. */
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regulator@19 {
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compatible = "marvell,88pg868";
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reg = <0x19>;
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vcpu: buck1 {
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regulator-boot-on;
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regulator-always-on;
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regulator-min-microvolt = <1000000>;
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regulator-max-microvolt = <1325000>;
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};
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};
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};
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/* Fixed interface to on-board Marvell 8897 Wi-Fi/Bluetooth/NFC chip. */
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&sdhci0 {
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keep-power-in-suspend;
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non-removable;
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status = "okay";
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};
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&uart0 {
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/* RX/TX are routed to TP50/TP51 on the board. */
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status = "okay";
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};
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/* The SoC is connected to on-board USB hub that in turn has one downstream
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* port wired to the on-board Steam Controller wireless receiver chip. */
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&usb_phy1 { status = "okay"; };
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&usb1 {
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dr_mode = "host";
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status = "okay";
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};
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ð1 { status = "okay"; };
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