| Alexander Monakov | dbbc3d7 | 2018-03-18 20:12:40 +0300 | [diff] [blame] | 1 | // SPDX-License-Identifier: (GPL-2.0 OR MIT) |
| 2 | /* |
| 3 | * Copyright 2018 Alexander Monakov <amonakov@gmail.com> |
| 4 | */ |
| 5 | /dts-v1/; |
| 6 | |
| 7 | #include "berlin2cd.dtsi" |
| 8 | #include <dt-bindings/gpio/gpio.h> |
| 9 | |
| 10 | / { |
| 11 | model = "Valve Steam Link"; |
| 12 | compatible = "valve,steamlink", "marvell,berlin2cd", "marvell,berlin"; |
| 13 | |
| 14 | memory@0 { |
| 15 | device_type = "memory"; |
| 16 | reg = <0x00000000 0x20000000>; /* 512 MB */ |
| 17 | }; |
| 18 | |
| 19 | gpio-restart { |
| 20 | compatible = "gpio-restart"; |
| 21 | gpios = <&porta 6 GPIO_ACTIVE_HIGH>; |
| 22 | active-delay = <100>; |
| 23 | inactive-delay = <10>; |
| 24 | wait-delay = <100>; |
| 25 | priority = <200>; |
| 26 | }; |
| 27 | }; |
| 28 | |
| 29 | &cpu { |
| 30 | cpu-supply = <&vcpu>; |
| 31 | operating-points = < |
| 32 | /* kHz uV */ |
| 33 | 1000000 1325000 |
| 34 | >; |
| 35 | }; |
| 36 | |
| 37 | &i2c0 { |
| 38 | status = "okay"; |
| 39 | |
| 40 | /* There are two regulators on the board. One is accessible via I2C, |
| 41 | * with buck1 providing SoC power (set up by bootloader to 1.325V or |
| 42 | * less depending on leakage value in OTP), and buck2 likely used for |
| 43 | * DRAM (providing 1.35V). The other regulator on the opposite side |
| 44 | * of the board is probably supplying SDIO and NAND fixed voltages. */ |
| 45 | regulator@19 { |
| 46 | compatible = "marvell,88pg868"; |
| 47 | reg = <0x19>; |
| 48 | |
| 49 | vcpu: buck1 { |
| 50 | regulator-boot-on; |
| 51 | regulator-always-on; |
| 52 | regulator-min-microvolt = <1000000>; |
| 53 | regulator-max-microvolt = <1325000>; |
| 54 | }; |
| 55 | }; |
| 56 | }; |
| 57 | |
| 58 | /* Fixed interface to on-board Marvell 8897 Wi-Fi/Bluetooth/NFC chip. */ |
| 59 | &sdhci0 { |
| 60 | keep-power-in-suspend; |
| 61 | non-removable; |
| 62 | status = "okay"; |
| 63 | }; |
| 64 | |
| 65 | &uart0 { |
| 66 | /* RX/TX are routed to TP50/TP51 on the board. */ |
| 67 | status = "okay"; |
| 68 | }; |
| 69 | |
| 70 | /* The SoC is connected to on-board USB hub that in turn has one downstream |
| 71 | * port wired to the on-board Steam Controller wireless receiver chip. */ |
| 72 | &usb_phy1 { status = "okay"; }; |
| 73 | |
| 74 | &usb1 { |
| 75 | dr_mode = "host"; |
| 76 | status = "okay"; |
| 77 | }; |
| 78 | |
| 79 | ð1 { status = "okay"; }; |