1 // SPDX-License-Identifier: GPL-2.0-only
2 // Copyright (C) 2013 Philipp Zabel
3
4 /dts-v1/;
5 #include <dt-bindings/gpio/gpio.h>
6 #include <dt-bindings/input/input.h>
7 #include "imx6q.dtsi"
8
9 / {
10 model = "Zealz GK802";
11 compatible = "zealz,imx6q-gk802", "fsl,imx6q";
12
13 chosen {
14 stdout-path = &uart4;
15 };
16
17 memory@10000000 {
18 device_type = "memory";
19 reg = <0x10000000 0x40000000>;
20 };
21
22 reg_3p3v: regulator-3p3v {
23 compatible = "regulator-fixed";
24 regulator-name = "3P3V";
25 regulator-min-microvolt = <3300000>;
26 regulator-max-microvolt = <3300000>;
27 regulator-always-on;
28 };
29
30 gpio-keys {
31 compatible = "gpio-keys";
32
33 recovery-button {
34 label = "recovery";
35 gpios = <&gpio3 16 1>;
36 linux,code = <KEY_RESTART>;
37 wakeup-source;
38 };
39 };
40 };
41
42 &hdmi {
43 ddc-i2c-bus = <&i2c3>;
44 status = "okay";
45 };
46
47 /* Internal I2C */
48 &i2c2 {
49 pinctrl-names = "default";
50 pinctrl-0 = <&pinctrl_i2c2>;
51 clock-frequency = <100000>;
52 status = "okay";
53
54 /* SDMC DM2016 1024 bit EEPROM + 128 bit OTP */
55 eeprom: dm2016@51 {
56 compatible = "sdmc,dm2016";
57 reg = <0x51>;
58 };
59 };
60
61 /* External I2C via HDMI */
62 &i2c3 {
63 pinctrl-names = "default";
64 pinctrl-0 = <&pinctrl_i2c3>;
65 clock-frequency = <100000>;
66 status = "okay";
67 };
68
69 &iomuxc {
70 pinctrl-names = "default";
71 pinctrl-0 = <&pinctrl_hog>;
72
73 imx6q-gk802 {
74 pinctrl_hog: hoggrp {
75 fsl,pins = <
76 /* Recovery button, active-low */
77 MX6QDL_PAD_EIM_D16__GPIO3_IO16 0x100b1
78 /* RTL8192CU enable GPIO, active-low */
79 MX6QDL_PAD_NANDF_D0__GPIO2_IO00 0x1b0b0
80 >;
81 };
82
83 pinctrl_i2c2: i2c2grp {
84 fsl,pins = <
85 MX6QDL_PAD_KEY_COL3__I2C2_SCL 0x4001b8b1
86 MX6QDL_PAD_KEY_ROW3__I2C2_SDA 0x4001b8b1
87 >;
88 };
89
90 pinctrl_i2c3: i2c3grp {
91 fsl,pins = <
92 MX6QDL_PAD_GPIO_5__I2C3_SCL 0x4001b8b1
93 MX6QDL_PAD_GPIO_16__I2C3_SDA 0x4001b8b1
94 >;
95 };
96
97 pinctrl_uart4: uart4grp {
98 fsl,pins = <
99 MX6QDL_PAD_KEY_COL0__UART4_TX_DATA 0x1b0b1
100 MX6QDL_PAD_KEY_ROW0__UART4_RX_DATA 0x1b0b1
101 >;
102 };
103
104 pinctrl_usdhc3: usdhc3grp {
105 fsl,pins = <
106 MX6QDL_PAD_SD3_CMD__SD3_CMD 0x17059
107 MX6QDL_PAD_SD3_CLK__SD3_CLK 0x10059
108 MX6QDL_PAD_SD3_DAT0__SD3_DATA0 0x17059
109 MX6QDL_PAD_SD3_DAT1__SD3_DATA1 0x17059
110 MX6QDL_PAD_SD3_DAT2__SD3_DATA2 0x17059
111 MX6QDL_PAD_SD3_DAT3__SD3_DATA3 0x17059
112 >;
113 };
114
115 pinctrl_usdhc4: usdhc4grp {
116 fsl,pins = <
117 MX6QDL_PAD_SD4_CMD__SD4_CMD 0x17059
118 MX6QDL_PAD_SD4_CLK__SD4_CLK 0x10059
119 MX6QDL_PAD_SD4_DAT0__SD4_DATA0 0x17059
120 MX6QDL_PAD_SD4_DAT1__SD4_DATA1 0x17059
121 MX6QDL_PAD_SD4_DAT2__SD4_DATA2 0x17059
122 MX6QDL_PAD_SD4_DAT3__SD4_DATA3 0x17059
123 >;
124 };
125 };
126 };
127
128 &uart2 {
129 status = "okay";
130 };
131
132 &uart4 {
133 pinctrl-names = "default";
134 pinctrl-0 = <&pinctrl_uart4>;
135 status = "okay";
136 };
137
138 /* External USB-A port (USBOTG) */
139 &usbotg {
140 disable-over-current;
141 status = "okay";
142 };
143
144 /* Internal USB port (USBH1), connected to RTL8192CU */
145 &usbh1 {
146 disable-over-current;
147 status = "okay";
148 };
149
150 /* External microSD */
151 &usdhc3 {
152 pinctrl-names = "default";
153 pinctrl-0 = <&pinctrl_usdhc3>;
154 bus-width = <4>;
155 cd-gpios = <&gpio6 11 GPIO_ACTIVE_LOW>;
156 vmmc-supply = <®_3p3v>;
157 status = "okay";
158 };
159
160 /* Internal microSD */
161 &usdhc4 {
162 pinctrl-names = "default";
163 pinctrl-0 = <&pinctrl_usdhc4>;
164 bus-width = <4>;
165 vmmc-supply = <®_3p3v>;
166 status = "okay";
167 };
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