0001 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
0002 /*
0003 * Copyright (C) 2020 Manivannan Sadhasivam
0004 */
0005
0006 /dts-v1/;
0007 #include "stm32mp157a-stinger96.dtsi"
0008
0009 / {
0010 model = "Shiratech STM32MP157A IoT Box";
0011 compatible = "shiratech,stm32mp157a-iot-box", "st,stm32mp157";
0012
0013 wlan_pwr: regulator-wlan {
0014 compatible = "regulator-fixed";
0015
0016 regulator-name = "wl-reg";
0017 regulator-min-microvolt = <3300000>;
0018 regulator-max-microvolt = <3300000>;
0019
0020 gpios = <&gpiog 3 GPIO_ACTIVE_HIGH>;
0021 enable-active-high;
0022 };
0023 };
0024
0025 &i2c2 {
0026 ccs811@5b {
0027 compatible = "ams,ccs811";
0028 reg = <0x5b>;
0029 wakeup-gpios = <&gpioa 12 GPIO_ACTIVE_LOW>;
0030 reset-gpios = <&gpioa 11 GPIO_ACTIVE_LOW>;
0031 };
0032 };
0033
0034 /* WiFi */
0035 &sdmmc2 {
0036 pinctrl-names = "default", "opendrain", "sleep";
0037 pinctrl-0 = <&sdmmc2_b4_pins_a>;
0038 pinctrl-1 = <&sdmmc2_b4_od_pins_b>;
0039 pinctrl-2 = <&sdmmc2_b4_sleep_pins_a>;
0040 broken-cd;
0041 non-removable;
0042 st,neg-edge;
0043 bus-width = <1>;
0044 vmmc-supply = <&wlan_pwr>;
0045 status = "okay";
0046
0047 #address-cells = <1>;
0048 #size-cells = <0>;
0049 brcmf: bcrmf@1 {
0050 reg = <1>;
0051 compatible = "brcm,bcm4329-fmac";
0052 };
0053 };
0054
0055 /* Bluetooth */
0056 &uart4 {
0057 /* Note: HW flow control is broken, hence using custom CTS/RTS gpios */
0058 /delete-property/st,hw-flow-ctrl;
0059 cts-gpios = <&gpioa 15 GPIO_ACTIVE_LOW>;
0060 rts-gpios = <&gpiob 0 GPIO_ACTIVE_LOW>;
0061 /delete-property/dmas;
0062 /delete-property/dma-names;
0063 status = "okay";
0064
0065 bluetooth {
0066 shutdown-gpios = <&gpiog 2 GPIO_ACTIVE_HIGH>;
0067 compatible = "brcm,bcm43438-bt";
0068 max-speed = <115200>;
0069 };
0070 };
