| // 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"; |
| }; |
| |
| ð1 { status = "okay"; }; |
