arch/arm/dts/stm32f429-disco.dts

   1 // SPDX-License-Identifier: GPL-2.0+ OR X11
   2 /*
   3  * Copyright 2015 - Maxime Coquelin <mcoquelin.stm32@gmail.com>
   4  */
   5
   6 /dts-v1/;
   7 #include "stm32f429.dtsi"
   8 #include "stm32f429-pinctrl.dtsi"
   9 #include <dt-bindings/input/input.h>
  10 #include <dt-bindings/interrupt-controller/irq.h>
  11 #include <dt-bindings/gpio/gpio.h>
  12
  13 / {
  14         model = "STMicroelectronics STM32F429i-DISCO board";
  15         compatible = "st,stm32f429i-disco", "st,stm32f429";
  16
  17         chosen {
  18                 bootargs = "root=/dev/ram";
  19                 stdout-path = "serial0:115200n8";
  20         };
  21
  22         memory@90000000 {
  23                 device_type = "memory";
  24                 reg = <0x90000000 0x800000>;
  25         };
  26
  27         aliases {
  28                 serial0 = &usart1;
  29         };
  30
  31         leds {
  32                 compatible = "gpio-leds";
  33                 led-red {
  34                         gpios = <&gpiog 14 0>;
  35                 };
  36                 led-green {
  37                         gpios = <&gpiog 13 0>;
  38                         linux,default-trigger = "heartbeat";
  39                 };
  40         };
  41
  42         gpio-keys {
  43                 compatible = "gpio-keys";
  44                 autorepeat;
  45                 button-0 {
  46                         label = "User";
  47                         linux,code = <KEY_HOME>;
  48                         gpios = <&gpioa 0 0>;
  49                 };
  50         };
  51
  52         /* This turns on vbus for otg for host mode (dwc2) */
  53         vcc5v_otg: vcc5v-otg-regulator {
  54                 compatible = "regulator-fixed";
  55                 gpio = <&gpioc 4 0>;
  56                 regulator-name = "vcc5_host1";
  57                 regulator-always-on;
  58         };
  59 };
  60
  61 &clk_hse {
  62         clock-frequency = <8000000>;
  63 };
  64
  65 &crc {
  66         status = "okay";
  67 };
  68
  69 &i2c3 {
  70         pinctrl-names = "default";
  71         pinctrl-0 = <&i2c3_pins>;
  72         clock-frequency = <100000>;
  73         status = "okay";
  74
  75         stmpe811@41 {
  76                 compatible = "st,stmpe811";
  77                 reg = <0x41>;
  78                 interrupts = <15 IRQ_TYPE_EDGE_FALLING>;
  79                 interrupt-parent = <&gpioa>;
  80                 /* 3.25 MHz ADC clock speed */
  81                 st,adc-freq = <1>;
  82                 /* 12-bit ADC */
  83                 st,mod-12b = <1>;
  84                 /* internal ADC reference */
  85                 st,ref-sel = <0>;
  86                 /* ADC converstion time: 80 clocks */
  87                 st,sample-time = <4>;
  88
  89                 stmpe_touchscreen {
  90                         compatible = "st,stmpe-ts";
  91                         /* 8 sample average control */
  92                         st,ave-ctrl = <3>;
  93                         /* 7 length fractional part in z */
  94                         st,fraction-z = <7>;
  95                         /*
  96                          * 50 mA typical 80 mA max touchscreen drivers
  97                          * current limit value
  98                          */
  99                         st,i-drive = <1>;
 100                         /* 1 ms panel driver settling time */
 101                         st,settling = <3>;
 102                         /* 5 ms touch detect interrupt delay */
 103                         st,touch-det-delay = <5>;
 104                 };
 105
 106                 stmpe_adc {
 107                         compatible = "st,stmpe-adc";
 108                         /* forbid to use ADC channels 3-0 (touch) */
 109                         st,norequest-mask = <0x0F>;
 110                 };
 111         };
 112 };
 113
 114 &ltdc {
 115         status = "okay";
 116         pinctrl-0 = <&ltdc_pins_b>;
 117         pinctrl-names = "default";
 118
 119         port {
 120                 ltdc_out_rgb: endpoint {
 121                         remote-endpoint = <&panel_in_rgb>;
 122                 };
 123         };
 124 };
 125
 126 &rtc {
 127         assigned-clocks = <&rcc 1 CLK_RTC>;
 128         assigned-clock-parents = <&rcc 1 CLK_LSI>;
 129         status = "okay";
 130 };
 131
 132 &spi5 {
 133         status = "okay";
 134         pinctrl-0 = <&spi5_pins>;
 135         pinctrl-names = "default";
 136         #address-cells = <1>;
 137         #size-cells = <0>;
 138         cs-gpios = <&gpioc 1 GPIO_ACTIVE_LOW>, <&gpioc 2 GPIO_ACTIVE_LOW>;
 139
 140         l3gd20: l3gd20@0 {
 141                 compatible = "st,l3gd20-gyro";
 142                 spi-max-frequency = <10000000>;
 143                 st,drdy-int-pin = <2>;
 144                 interrupt-parent = <&gpioa>;
 145                 interrupts = <1 IRQ_TYPE_EDGE_RISING>,
 146                                 <2 IRQ_TYPE_EDGE_RISING>;
 147                 reg = <0>;
 148                 status = "okay";
 149         };
 150
 151         display: display@1{
 152                 /* Connect panel-ilitek-9341 to ltdc */
 153                 compatible = "st,sf-tc240t-9370-t", "ilitek,ili9341";
 154                 reg = <1>;
 155                 spi-3wire;
 156                 spi-max-frequency = <10000000>;
 157                 dc-gpios = <&gpiod 13 0>;
 158                 port {
 159                         panel_in_rgb: endpoint {
 160                         remote-endpoint = <&ltdc_out_rgb>;
 161                         };
 162                 };
 163         };
 164 };
 165
 166 &timers5 {
 167         /* Override timer5 to act as clockevent */
 168         compatible = "st,stm32-timer";
 169         interrupts = <50>;
 170         status = "okay";
 171         /delete-property/#address-cells;
 172         /delete-property/#size-cells;
 173         /delete-property/clock-names;
 174         /delete-node/pwm;
 175         /delete-node/timer@4;
 176 };
 177
 178 &usart1 {
 179         pinctrl-0 = <&usart1_pins_a>;
 180         pinctrl-names = "default";
 181         status = "okay";
 182 };
 183
 184 &usbotg_hs {
 185         compatible = "st,stm32f4x9-fsotg";
 186         dr_mode = "host";
 187         pinctrl-0 = <&usbotg_fs_pins_b>;
 188         pinctrl-names = "default";
 189         status = "okay";
 190 };