1/*
2 * Copyright 2015 - Maxime Coquelin <mcoquelin.stm32@gmail.com>
3 *
4 * This file is dual-licensed: you can use it either under the terms
5 * of the GPL or the X11 license, at your option. Note that this dual
6 * licensing only applies to this file, and not this project as a
7 * whole.
8 *
9 *  a) This file is free software; you can redistribute it and/or
10 *     modify it under the terms of the GNU General Public License as
11 *     published by the Free Software Foundation; either version 2 of the
12 *     License, or (at your option) any later version.
13 *
14 *     This file is distributed in the hope that it will be useful,
15 *     but WITHOUT ANY WARRANTY; without even the implied warranty of
16 *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17 *     GNU General Public License for more details.
18 *
19 *     You should have received a copy of the GNU General Public
20 *     License along with this file; if not, write to the Free
21 *     Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
22 *     MA 02110-1301 USA
23 *
24 * Or, alternatively,
25 *
26 *  b) Permission is hereby granted, free of charge, to any person
27 *     obtaining a copy of this software and associated documentation
28 *     files (the "Software"), to deal in the Software without
29 *     restriction, including without limitation the rights to use,
30 *     copy, modify, merge, publish, distribute, sublicense, and/or
31 *     sell copies of the Software, and to permit persons to whom the
32 *     Software is furnished to do so, subject to the following
33 *     conditions:
34 *
35 *     The above copyright notice and this permission notice shall be
36 *     included in all copies or substantial portions of the Software.
37 *
38 *     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
39 *     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
40 *     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
41 *     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
42 *     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
43 *     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
44 *     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
45 *     OTHER DEALINGS IN THE SOFTWARE.
46 */
47
48/dts-v1/;
49#include "stm32f429.dtsi"
50#include "stm32f429-pinctrl.dtsi"
51#include <dt-bindings/input/input.h>
52#include <dt-bindings/interrupt-controller/irq.h>
53#include <dt-bindings/gpio/gpio.h>
54
55/ {
56	model = "STMicroelectronics STM32F429i-DISCO board";
57	compatible = "st,stm32f429i-disco", "st,stm32f429";
58
59	chosen {
60		bootargs = "root=/dev/ram";
61		stdout-path = "serial0:115200n8";
62	};
63
64	memory@90000000 {
65		device_type = "memory";
66		reg = <0x90000000 0x800000>;
67	};
68
69	aliases {
70		serial0 = &usart1;
71	};
72
73	leds {
74		compatible = "gpio-leds";
75		led-red {
76			gpios = <&gpiog 14 0>;
77		};
78		led-green {
79			gpios = <&gpiog 13 0>;
80			linux,default-trigger = "heartbeat";
81		};
82	};
83
84	gpio-keys {
85		compatible = "gpio-keys";
86		autorepeat;
87		button-0 {
88			label = "User";
89			linux,code = <KEY_HOME>;
90			gpios = <&gpioa 0 0>;
91		};
92	};
93
94	/* This turns on vbus for otg for host mode (dwc2) */
95	vcc5v_otg: vcc5v-otg-regulator {
96		compatible = "regulator-fixed";
97		gpio = <&gpioc 4 0>;
98		regulator-name = "vcc5_host1";
99		regulator-always-on;
100	};
101};
102
103&clk_hse {
104	clock-frequency = <8000000>;
105};
106
107&crc {
108	status = "okay";
109};
110
111&i2c3 {
112	pinctrl-names = "default";
113	pinctrl-0 = <&i2c3_pins>;
114	clock-frequency = <100000>;
115	status = "okay";
116
117	stmpe811@41 {
118		compatible = "st,stmpe811";
119		reg = <0x41>;
120		interrupts = <15 IRQ_TYPE_EDGE_FALLING>;
121		interrupt-parent = <&gpioa>;
122		/* 3.25 MHz ADC clock speed */
123		st,adc-freq = <1>;
124		/* 12-bit ADC */
125		st,mod-12b = <1>;
126		/* internal ADC reference */
127		st,ref-sel = <0>;
128		/* ADC converstion time: 80 clocks */
129		st,sample-time = <4>;
130
131		stmpe_touchscreen {
132			compatible = "st,stmpe-ts";
133			/* 8 sample average control */
134			st,ave-ctrl = <3>;
135			/* 7 length fractional part in z */
136			st,fraction-z = <7>;
137			/*
138			 * 50 mA typical 80 mA max touchscreen drivers
139			 * current limit value
140			 */
141			st,i-drive = <1>;
142			/* 1 ms panel driver settling time */
143			st,settling = <3>;
144			/* 5 ms touch detect interrupt delay */
145			st,touch-det-delay = <5>;
146		};
147
148		stmpe_adc {
149			compatible = "st,stmpe-adc";
150			/* forbid to use ADC channels 3-0 (touch) */
151			st,norequest-mask = <0x0F>;
152		};
153	};
154};
155
156&ltdc {
157	status = "okay";
158	pinctrl-0 = <&ltdc_pins_b>;
159	pinctrl-names = "default";
160
161	port {
162		ltdc_out_rgb: endpoint {
163			remote-endpoint = <&panel_in_rgb>;
164		};
165	};
166};
167
168&rtc {
169	assigned-clocks = <&rcc 1 CLK_RTC>;
170	assigned-clock-parents = <&rcc 1 CLK_LSI>;
171	status = "okay";
172};
173
174&spi5 {
175	status = "okay";
176	pinctrl-0 = <&spi5_pins>;
177	pinctrl-names = "default";
178	#address-cells = <1>;
179	#size-cells = <0>;
180	cs-gpios = <&gpioc 1 GPIO_ACTIVE_LOW>, <&gpioc 2 GPIO_ACTIVE_LOW>;
181
182	l3gd20: l3gd20@0 {
183		compatible = "st,l3gd20-gyro";
184		spi-max-frequency = <10000000>;
185		st,drdy-int-pin = <2>;
186		interrupt-parent = <&gpioa>;
187		interrupts = <1 IRQ_TYPE_EDGE_RISING>,
188				<2 IRQ_TYPE_EDGE_RISING>;
189		reg = <0>;
190		status = "okay";
191	};
192
193	display: display@1{
194		/* Connect panel-ilitek-9341 to ltdc */
195		compatible = "st,sf-tc240t-9370-t", "ilitek,ili9341";
196		reg = <1>;
197		spi-3wire;
198		spi-max-frequency = <10000000>;
199		dc-gpios = <&gpiod 13 0>;
200		port {
201			panel_in_rgb: endpoint {
202			remote-endpoint = <&ltdc_out_rgb>;
203			};
204		};
205	};
206};
207
208&timers5 {
209	/* Override timer5 to act as clockevent */
210	compatible = "st,stm32-timer";
211	interrupts = <50>;
212	status = "okay";
213	/delete-property/#address-cells;
214	/delete-property/#size-cells;
215	/delete-property/clock-names;
216	/delete-node/pwm;
217	/delete-node/timer@4;
218};
219
220&usart1 {
221	pinctrl-0 = <&usart1_pins_a>;
222	pinctrl-names = "default";
223	status = "okay";
224};
225
226&usbotg_hs {
227	compatible = "st,stm32f4x9-fsotg";
228	dr_mode = "host";
229	pinctrl-0 = <&usbotg_fs_pins_b>;
230	pinctrl-names = "default";
231	status = "okay";
232};
233