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 /delete-property/dmas;
62 /delete-property/dma-names;
63 status = "okay";
64
65 bluetooth {
66 shutdown-gpios = <&gpiog 2 GPIO_ACTIVE_HIGH>;
67 compatible = "brcm,bcm43438-bt";
68 max-speed = <115200>;
69 };
70 };
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