1// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
  2/*
  3 * Copyright (C) 2017 Icenowy Zheng <icenowy@aosc.io>
  4 *
  5 * Based on sun8i-h3-bananapi-m2-plus.dts, which is:
  6 *   Copyright (C) 2016 Chen-Yu Tsai <wens@csie.org>
  7 */
  8
  9/dts-v1/;
 10#include "sun8i-h3.dtsi"
 11#include "sunxi-common-regulators.dtsi"
 12
 13#include <dt-bindings/gpio/gpio.h>
 14#include <dt-bindings/input/input.h>
 15
 16/ {
 17	model = "Banana Pi BPI-M2-Zero";
 18	compatible = "sinovoip,bpi-m2-zero", "allwinner,sun8i-h2-plus";
 19
 20	aliases {
 21		serial0 = &uart0;
 22		serial1 = &uart1;
 23	};
 24
 25	chosen {
 26		stdout-path = "serial0:115200n8";
 27	};
 28
 29	leds {
 30		compatible = "gpio-leds";
 31
 32		pwr_led {
 33			label = "bananapi-m2-zero:red:pwr";
 34			gpios = <&r_pio 0 10 GPIO_ACTIVE_LOW>; /* PL10 */
 35			default-state = "on";
 36		};
 37	};
 38
 39	gpio_keys {
 40		compatible = "gpio-keys";
 41
 42		sw4 {
 43			label = "power";
 44			linux,code = <BTN_0>;
 45			gpios = <&r_pio 0 3 GPIO_ACTIVE_LOW>;
 46		};
 47	};
 48
 49	reg_vdd_cpux: vdd-cpux-regulator {
 50		compatible = "regulator-gpio";
 51		regulator-name = "vdd-cpux";
 52		regulator-type = "voltage";
 53		regulator-boot-on;
 54		regulator-always-on;
 55		regulator-min-microvolt = <1100000>;
 56		regulator-max-microvolt = <1300000>;
 57		regulator-ramp-delay = <50>; /* 4ms */
 58
 59		gpios = <&r_pio 0 1 GPIO_ACTIVE_HIGH>; /* PL1 */
 60		enable-active-high;
 61		gpios-states = <0x1>;
 62		states = <1100000 0>, <1300000 1>;
 63	};
 64
 65	wifi_pwrseq: wifi_pwrseq {
 66		compatible = "mmc-pwrseq-simple";
 67		reset-gpios = <&r_pio 0 7 GPIO_ACTIVE_LOW>; /* PL7 */
 68		clocks = <&rtc 1>;
 69		clock-names = "ext_clock";
 70	};
 71};
 72
 73&cpu0 {
 74	cpu-supply = <&reg_vdd_cpux>;
 75};
 76
 77&ehci0 {
 78	status = "okay";
 79};
 80
 81&mmc0 {
 82	vmmc-supply = <&reg_vcc3v3>;
 83	bus-width = <4>;
 84	/*
 85	 * On the production batch of this board the card detect GPIO is
 86	 * high active (card inserted), although on the early samples it's
 87	 * low active.
 88	 */
 89	cd-gpios = <&pio 5 6 GPIO_ACTIVE_HIGH>; /* PF6 */
 90	status = "okay";
 91};
 92
 93&mmc1 {
 94	vmmc-supply = <&reg_vcc3v3>;
 95	vqmmc-supply = <&reg_vcc3v3>;
 96	mmc-pwrseq = <&wifi_pwrseq>;
 97	bus-width = <4>;
 98	non-removable;
 99	status = "okay";
100
101	brcmf: wifi@1 {
102		reg = <1>;
103		compatible = "brcm,bcm4329-fmac";
104		interrupt-parent = <&pio>;
105		interrupts = <6 10 IRQ_TYPE_LEVEL_LOW>; /* PG10 / EINT10 */
106		interrupt-names = "host-wake";
107	};
108};
109
110&ohci0 {
111	status = "okay";
112};
113
114&uart0 {
115	pinctrl-names = "default";
116	pinctrl-0 = <&uart0_pa_pins>;
117	status = "okay";
118};
119
120&uart1 {
121	pinctrl-names = "default";
122	pinctrl-0 = <&uart1_pins>, <&uart1_rts_cts_pins>;
123	uart-has-rtscts;
124	status = "okay";
125
126	bluetooth {
127		compatible = "brcm,bcm43438-bt";
128		clocks = <&rtc 1>;
129		clock-names = "lpo";
130		vbat-supply = <&reg_vcc3v3>;
131		vddio-supply = <&reg_vcc3v3>;
132		device-wakeup-gpios = <&pio 6 13 GPIO_ACTIVE_HIGH>; /* PG13 */
133		host-wakeup-gpios = <&pio 6 11 GPIO_ACTIVE_HIGH>; /* PG11 */
134		shutdown-gpios = <&pio 6 12 GPIO_ACTIVE_HIGH>; /* PG12 */
135	};
136
137};
138
139&usb_otg {
140	dr_mode = "otg";
141	status = "okay";
142};
143
144&usbphy {
145	usb0_id_det-gpios = <&r_pio 0 6 GPIO_ACTIVE_HIGH>; /* PL6 */
146	/*
147	 * There're two micro-USB connectors, one is power-only and another is
148	 * OTG. The Vbus of these two connectors are connected together, so
149	 * the external USB device will be powered just by the power input
150	 * from the power-only USB port.
151	 */
152	status = "okay";
153};