1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
2 // Copyright (C) 2022 Samuel Holland <samuel@sholland.org>
3
4 #include <dt-bindings/gpio/gpio.h>
5 #include <dt-bindings/leds/common.h>
6
7 /dts-v1/;
8
9 #include "sun20i-d1.dtsi"
10 #include "sun20i-common-regulators.dtsi"
11
12 / {
13 model = "Dongshan Nezha STU";
14 compatible = "100ask,dongshan-nezha-stu", "allwinner,sun20i-d1";
15
16 aliases {
17 ethernet0 = &emac;
18 serial0 = &uart0;
19 };
20
21 chosen {
22 stdout-path = "serial0:115200n8";
23 };
24
25 leds {
26 compatible = "gpio-leds";
27
28 led-0 {
29 color = <LED_COLOR_ID_GREEN>;
30 function = LED_FUNCTION_STATUS;
31 gpios = <&pio 2 1 GPIO_ACTIVE_HIGH>; /* PC1 */
32 };
33 };
34
35 reg_usbvbus: usbvbus {
36 compatible = "regulator-fixed";
37 regulator-name = "usbvbus";
38 regulator-min-microvolt = <5000000>;
39 regulator-max-microvolt = <5000000>;
40 gpio = <&pio 3 19 GPIO_ACTIVE_HIGH>; /* PD19 */
41 enable-active-high;
42 vin-supply = <®_vcc>;
43 };
44
45 /*
46 * This regulator is PWM-controlled, but the PWM controller is not
47 * yet supported, so fix the regulator to its default voltage.
48 */
49 reg_vdd_cpu: vdd-cpu {
50 compatible = "regulator-fixed";
51 regulator-name = "vdd-cpu";
52 regulator-min-microvolt = <1100000>;
53 regulator-max-microvolt = <1100000>;
54 vin-supply = <®_vcc>;
55 };
56 };
57
58 &cpu0 {
59 cpu-supply = <®_vdd_cpu>;
60 };
61
62 &dcxo {
63 clock-frequency = <24000000>;
64 };
65
66 &ehci0 {
67 status = "okay";
68 };
69
70 &emac {
71 pinctrl-0 = <&rgmii_pe_pins>;
72 pinctrl-names = "default";
73 phy-handle = <&ext_rgmii_phy>;
74 phy-mode = "rgmii-id";
75 phy-supply = <®_vcc_3v3>;
76 status = "okay";
77 };
78
79 &mdio {
80 ext_rgmii_phy: ethernet-phy@1 {
81 compatible = "ethernet-phy-ieee802.3-c22";
82 reg = <1>;
83 };
84 };
85
86 &mmc0 {
87 broken-cd;
88 bus-width = <4>;
89 disable-wp;
90 vmmc-supply = <®_vcc_3v3>;
91 vqmmc-supply = <®_vcc_3v3>;
92 pinctrl-0 = <&mmc0_pins>;
93 pinctrl-names = "default";
94 status = "okay";
95 };
96
97 &ohci0 {
98 status = "okay";
99 };
100
101 &uart0 {
102 pinctrl-0 = <&uart0_pb8_pins>;
103 pinctrl-names = "default";
104 status = "okay";
105 };
106
107 &usb_otg {
108 dr_mode = "otg";
109 status = "okay";
110 };
111
112 &usbphy {
113 usb0_id_det-gpios = <&pio 3 21 GPIO_ACTIVE_HIGH>; /* PD21 */
114 usb0_vbus_det-gpios = <&pio 3 20 GPIO_ACTIVE_HIGH>; /* PD20 */
115 usb0_vbus-supply = <®_usbvbus>;
116 status = "okay";
117 };
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