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                 #address-cells = <1>;
  45                 #size-cells = <0>;
  46                 autorepeat;
  47                 button@0 {
  48                         label = "User";
  49                         linux,code = <KEY_HOME>;
  50                         gpios = <&gpioa 0 0>;
  51                 };
  52         };
  53
  54         /* This turns on vbus for otg for host mode (dwc2) */
  55         vcc5v_otg: vcc5v-otg-regulator {
  56                 compatible = "regulator-fixed";
  57                 gpio = <&gpioc 4 0>;
  58                 regulator-name = "vcc5_host1";
  59                 regulator-always-on;
  60         };
  61 };
  62
  63 &clk_hse {
  64         clock-frequency = <8000000>;
  65 };
  66
  67 &crc {
  68         status = "okay";
  69 };
  70
  71 &i2c3 {
  72         pinctrl-names = "default";
  73         pinctrl-0 = <&i2c3_pins>;
  74         clock-frequency = <100000>;
  75         status = "okay";
  76
  77         stmpe811@41 {
  78                 compatible = "st,stmpe811";
  79                 reg = <0x41>;
  80                 interrupts = <15 IRQ_TYPE_EDGE_FALLING>;
  81                 interrupt-parent = <&gpioa>;
  82                 /* 3.25 MHz ADC clock speed */
  83                 st,adc-freq = <1>;
  84                 /* 12-bit ADC */
  85                 st,mod-12b = <1>;
  86                 /* internal ADC reference */
  87                 st,ref-sel = <0>;
  88                 /* ADC converstion time: 80 clocks */
  89                 st,sample-time = <4>;
  90
  91                 stmpe_touchscreen {
  92                         compatible = "st,stmpe-ts";
  93                         /* 8 sample average control */
  94                         st,ave-ctrl = <3>;
  95                         /* 7 length fractional part in z */
  96                         st,fraction-z = <7>;
  97                         /*
  98                          * 50 mA typical 80 mA max touchscreen drivers
  99                          * current limit value
 100                          */
 101                         st,i-drive = <1>;
 102                         /* 1 ms panel driver settling time */
 103                         st,settling = <3>;
 104                         /* 5 ms touch detect interrupt delay */
 105                         st,touch-det-delay = <5>;
 106                 };
 107
 108                 stmpe_adc {
 109                         compatible = "st,stmpe-adc";
 110                         /* forbid to use ADC channels 3-0 (touch) */
 111                         st,norequest-mask = <0x0F>;
 112                 };
 113         };
 114 };
 115
 116 &ltdc {
 117         status = "okay";
 118         pinctrl-0 = <&ltdc_pins_b>;
 119         pinctrl-names = "default";
 120
 121         port {
 122                 ltdc_out_rgb: endpoint {
 123                         remote-endpoint = <&panel_in_rgb>;
 124                 };
 125         };
 126 };
 127
 128 &rtc {
 129         assigned-clocks = <&rcc 1 CLK_RTC>;
 130         assigned-clock-parents = <&rcc 1 CLK_LSI>;
 131         status = "okay";
 132 };
 133
 134 &spi5 {
 135         status = "okay";
 136         pinctrl-0 = <&spi5_pins>;
 137         pinctrl-names = "default";
 138         #address-cells = <1>;
 139         #size-cells = <0>;
 140         cs-gpios = <&gpioc 1 GPIO_ACTIVE_LOW>, <&gpioc 2 GPIO_ACTIVE_LOW>;
 141
 142         l3gd20: l3gd20@0 {
 143                 compatible = "st,l3gd20-gyro";
 144                 spi-max-frequency = <10000000>;
 145                 st,drdy-int-pin = <2>;
 146                 interrupt-parent = <&gpioa>;
 147                 interrupts = <1 IRQ_TYPE_EDGE_RISING>,
 148                                 <2 IRQ_TYPE_EDGE_RISING>;
 149                 reg = <0>;
 150                 status = "okay";
 151         };
 152
 153         display: display@1{
 154                 /* Connect panel-ilitek-9341 to ltdc */
 155                 compatible = "st,sf-tc240t-9370-t";
 156                 reg = <1>;
 157                 spi-3wire;
 158                 spi-max-frequency = <10000000>;
 159                 dc-gpios = <&gpiod 13 0>;
 160                 port {
 161                         panel_in_rgb: endpoint {
 162                         remote-endpoint = <&ltdc_out_rgb>;
 163                         };
 164                 };
 165         };
 166 };
 167
 168 &usart1 {
 169         pinctrl-0 = <&usart1_pins_a>;
 170         pinctrl-names = "default";
 171         status = "okay";
 172 };
 173
 174 &usbotg_hs {
 175         compatible = "st,stm32f4x9-fsotg";
 176         dr_mode = "host";
 177         pinctrl-0 = <&usbotg_fs_pins_b>;
 178         pinctrl-names = "default";
 179         status = "okay";
 180 };