// 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"; };
