tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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 pinctrl-names = "default";
32
33 pwr_led {
34 label = "bananapi-m2-zero:red:pwr";
35 gpios = <&r_pio 0 10 GPIO_ACTIVE_HIGH>; /* PL10 */
36 default-state = "on";
37 };
38 };
39
40 gpio_keys {
41 compatible = "gpio-keys";
42 pinctrl-names = "default";
43
44 sw4 {
45 label = "power";
46 linux,code = <BTN_0>;
47 gpios = <&r_pio 0 3 GPIO_ACTIVE_LOW>;
48 };
49 };
50
51 reg_vdd_cpux: vdd-cpux-regulator {
52 compatible = "regulator-gpio";
53 regulator-name = "vdd-cpux";
54 regulator-type = "voltage";
55 regulator-boot-on;
56 regulator-always-on;
57 regulator-min-microvolt = <1100000>;
58 regulator-max-microvolt = <1300000>;
59 regulator-ramp-delay = <50>; /* 4ms */
60
61 gpios = <&r_pio 0 1 GPIO_ACTIVE_HIGH>; /* PL1 */
62 enable-active-high;
63 gpios-states = <0x1>;
64 states = <1100000 0x0
65 1300000 0x1>;
66 };
67
68 wifi_pwrseq: wifi_pwrseq {
69 compatible = "mmc-pwrseq-simple";
70 pinctrl-names = "default";
71 reset-gpios = <&r_pio 0 7 GPIO_ACTIVE_LOW>; /* PL7 */
72 };
73};
74
75&cpu0 {
76 cpu-supply = <®_vdd_cpux>;
77};
78
79&ehci0 {
80 status = "okay";
81};
82
83&mmc0 {
84 vmmc-supply = <®_vcc3v3>;
85 bus-width = <4>;
86 /*
87 * On the production batch of this board the card detect GPIO is
88 * high active (card inserted), although on the early samples it's
89 * low active.
90 */
91 cd-gpios = <&pio 5 6 GPIO_ACTIVE_HIGH>; /* PF6 */
92 status = "okay";
93};
94
95&mmc1 {
96 vmmc-supply = <®_vcc3v3>;
97 vqmmc-supply = <®_vcc3v3>;
98 mmc-pwrseq = <&wifi_pwrseq>;
99 bus-width = <4>;
100 non-removable;
101 status = "okay";
102
103 brcmf: wifi@1 {
104 reg = <1>;
105 compatible = "brcm,bcm4329-fmac";
106 interrupt-parent = <&pio>;
107 interrupts = <6 10 IRQ_TYPE_LEVEL_LOW>; /* PG10 / EINT10 */
108 interrupt-names = "host-wake";
109 };
110};
111
112&ohci0 {
113 status = "okay";
114};
115
116&uart0 {
117 pinctrl-names = "default";
118 pinctrl-0 = <&uart0_pins_a>;
119 status = "okay";
120};
121
122&uart1 {
123 pinctrl-names = "default";
124 pinctrl-0 = <&uart1_pins>, <&uart1_rts_cts_pins>;
125 status = "okay";
126};
127
128&usb_otg {
129 dr_mode = "otg";
130 status = "okay";
131};
132
133&usbphy {
134 usb0_id_det-gpios = <&r_pio 0 6 GPIO_ACTIVE_HIGH>; /* PL6 */
135 /*
136 * There're two micro-USB connectors, one is power-only and another is
137 * OTG. The Vbus of these two connectors are connected together, so
138 * the external USB device will be powered just by the power input
139 * from the power-only USB port.
140 */
141 status = "okay";
142};