arch/arm/boot/dts/stm32mp157a-iot-box.dts

   1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
   2 /*
   3  * Copyright (C) 2020 Manivannan Sadhasivam
   4  */
   5
   6 /dts-v1/;
   7 #include "stm32mp157a-stinger96.dtsi"
   8
   9 / {
  10         model = "Shiratech STM32MP157A IoT Box";
  11         compatible = "shiratech,stm32mp157a-iot-box", "st,stm32mp157";
  12
  13         wlan_pwr: regulator-wlan {
  14                 compatible = "regulator-fixed";
  15
  16                 regulator-name = "wl-reg";
  17                 regulator-min-microvolt = <3300000>;
  18                 regulator-max-microvolt = <3300000>;
  19
  20                 gpios = <&gpiog 3 GPIO_ACTIVE_HIGH>;
  21                 enable-active-high;
  22         };
  23 };
  24
  25 &i2c2 {
  26         ccs811@5b {
  27                 compatible = "ams,ccs811";
  28                 reg = <0x5b>;
  29                 wakeup-gpios = <&gpioa 12 GPIO_ACTIVE_LOW>;
  30                 reset-gpios = <&gpioa 11 GPIO_ACTIVE_LOW>;
  31         };
  32 };
  33
  34 /* WiFi */
  35 &sdmmc2 {
  36         pinctrl-names = "default", "opendrain", "sleep";
  37         pinctrl-0 = <&sdmmc2_b4_pins_a>;
  38         pinctrl-1 = <&sdmmc2_b4_od_pins_b>;
  39         pinctrl-2 = <&sdmmc2_b4_sleep_pins_a>;
  40         broken-cd;
  41         non-removable;
  42         st,neg-edge;
  43         bus-width = <1>;
  44         vmmc-supply = <&wlan_pwr>;
  45         status = "okay";
  46
  47         #address-cells = <1>;
  48         #size-cells = <0>;
  49         brcmf: bcrmf@1 {
  50                 reg = <1>;
  51                 compatible = "brcm,bcm4329-fmac";
  52         };
  53 };
  54
  55 /* Bluetooth */
  56 &uart4 {
  57         /* Note: HW flow control is broken, hence using custom CTS/RTS gpios */
  58         /delete-property/st,hw-flow-ctrl;
  59         cts-gpios = <&gpioa 15 GPIO_ACTIVE_LOW>;
  60         rts-gpios = <&gpiob 0 GPIO_ACTIVE_LOW>;
  61         status = "okay";
  62
  63         bluetooth {
  64                 shutdown-gpios = <&gpiog 2 GPIO_ACTIVE_HIGH>;
  65                 compatible = "brcm,bcm43438-bt";
  66                 max-speed = <115200>;
  67         };
  68 };