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 = <&reg_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 = <&reg_3p3v>;
166	status = "okay";
167};
168