imx6q-gk802.dts revision 302408 
1/*
2 * Copyright (C) 2013 Philipp Zabel
3 *
4 * This file is licensed under the terms of the GNU General Public License
5 * version 2.  This program is licensed "as is" without any warranty of any
6 * kind, whether express or implied.
7 */
8
9/dts-v1/;
10#include <dt-bindings/gpio/gpio.h>
11#include "imx6q.dtsi"
12
13/ {
14	model = "Zealz GK802";
15	compatible = "zealz,imx6q-gk802", "fsl,imx6q";
16
17	chosen {
18		stdout-path = &uart4;
19	};
20
21	memory {
22		reg = <0x10000000 0x40000000>;
23	};
24
25	regulators {
26		compatible = "simple-bus";
27		#address-cells = <1>;
28		#size-cells = <0>;
29
30		reg_3p3v: regulator@0 {
31			compatible = "regulator-fixed";
32			reg = <0>;
33			regulator-name = "3P3V";
34			regulator-min-microvolt = <3300000>;
35			regulator-max-microvolt = <3300000>;
36			regulator-always-on;
37		};
38	};
39
40	gpio-keys {
41		compatible = "gpio-keys";
42
43		recovery-button {
44			label = "recovery";
45			gpios = <&gpio3 16 1>;
46			linux,code = <0x198>; /* KEY_RESTART */
47			gpio-key,wakeup;
48		};
49	};
50};
51
52&hdmi {
53	ddc-i2c-bus = <&i2c3>;
54	status = "okay";
55};
56
57/* Internal I2C */
58&i2c2 {
59	pinctrl-names = "default";
60	pinctrl-0 = <&pinctrl_i2c2>;
61	clock-frequency = <100000>;
62	status = "okay";
63
64	/* SDMC DM2016 1024 bit EEPROM + 128 bit OTP */
65	eeprom: dm2016@51 {
66		compatible = "sdmc,dm2016";
67		reg = <0x51>;
68	};
69};
70
71/* External I2C via HDMI */
72&i2c3 {
73	pinctrl-names = "default";
74	pinctrl-0 = <&pinctrl_i2c3>;
75	clock-frequency = <100000>;
76	status = "okay";
77};
78
79&iomuxc {
80	pinctrl-names = "default";
81	pinctrl-0 = <&pinctrl_hog>;
82
83	imx6q-gk802 {
84		pinctrl_hog: hoggrp {
85			fsl,pins = <
86				/* Recovery button, active-low */
87				MX6QDL_PAD_EIM_D16__GPIO3_IO16  0x100b1
88				/* RTL8192CU enable GPIO, active-low */
89				MX6QDL_PAD_NANDF_D0__GPIO2_IO00 0x1b0b0
90			>;
91		};
92
93		pinctrl_i2c2: i2c2grp {
94			fsl,pins = <
95				MX6QDL_PAD_KEY_COL3__I2C2_SCL		0x4001b8b1
96				MX6QDL_PAD_KEY_ROW3__I2C2_SDA		0x4001b8b1
97			>;
98		};
99
100		pinctrl_i2c3: i2c3grp {
101			fsl,pins = <
102				MX6QDL_PAD_GPIO_5__I2C3_SCL		0x4001b8b1
103				MX6QDL_PAD_GPIO_16__I2C3_SDA		0x4001b8b1
104			>;
105		};
106
107		pinctrl_uart4: uart4grp {
108			fsl,pins = <
109				MX6QDL_PAD_KEY_COL0__UART4_TX_DATA	0x1b0b1
110				MX6QDL_PAD_KEY_ROW0__UART4_RX_DATA	0x1b0b1
111			>;
112		};
113
114		pinctrl_usdhc3: usdhc3grp {
115			fsl,pins = <
116				MX6QDL_PAD_SD3_CMD__SD3_CMD		0x17059
117				MX6QDL_PAD_SD3_CLK__SD3_CLK		0x10059
118				MX6QDL_PAD_SD3_DAT0__SD3_DATA0		0x17059
119				MX6QDL_PAD_SD3_DAT1__SD3_DATA1		0x17059
120				MX6QDL_PAD_SD3_DAT2__SD3_DATA2		0x17059
121				MX6QDL_PAD_SD3_DAT3__SD3_DATA3		0x17059
122			>;
123		};
124
125		pinctrl_usdhc4: usdhc4grp {
126			fsl,pins = <
127				MX6QDL_PAD_SD4_CMD__SD4_CMD		0x17059
128				MX6QDL_PAD_SD4_CLK__SD4_CLK		0x10059
129				MX6QDL_PAD_SD4_DAT0__SD4_DATA0		0x17059
130				MX6QDL_PAD_SD4_DAT1__SD4_DATA1		0x17059
131				MX6QDL_PAD_SD4_DAT2__SD4_DATA2		0x17059
132				MX6QDL_PAD_SD4_DAT3__SD4_DATA3		0x17059
133			>;
134		};
135	};
136};
137
138&uart2 {
139	status = "okay";
140};
141
142&uart4 {
143	pinctrl-names = "default";
144	pinctrl-0 = <&pinctrl_uart4>;
145	status = "okay";
146};
147
148/* External USB-A port (USBOTG) */
149&usbotg {
150	disable-over-current;
151	status = "okay";
152};
153
154/* Internal USB port (USBH1), connected to RTL8192CU */
155&usbh1 {
156	disable-over-current;
157	status = "okay";
158};
159
160/* External microSD */
161&usdhc3 {
162	pinctrl-names = "default";
163	pinctrl-0 = <&pinctrl_usdhc3>;
164	bus-width = <4>;
165	cd-gpios = <&gpio6 11 GPIO_ACTIVE_LOW>;
166	vmmc-supply = <&reg_3p3v>;
167	status = "okay";
168};
169
170/* Internal microSD */
171&usdhc4 {
172	pinctrl-names = "default";
173	pinctrl-0 = <&pinctrl_usdhc4>;
174	bus-width = <4>;
175	vmmc-supply = <&reg_3p3v>;
176	status = "okay";
177};
178