u-boot/arch/arm/dts/am335x-boneblack-wireless.dts

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright (C) 2012 Texas Instruments Incorporated - https://www.ti.com/
 */
/dts-v1/;

#include "am33xx.dtsi"
#include "am335x-bone-common.dtsi"
#include "am335x-boneblack-common.dtsi"
#include "am335x-boneblack-hdmi.dtsi"
#include <dt-bindings/interrupt-controller/irq.h>

/ {
	model = "TI AM335x BeagleBone Black Wireless";
	compatible = "ti,am335x-bone-black-wireless", "ti,am335x-bone-black", "ti,am335x-bone", "ti,am33xx";

	wlan_en_reg: fixedregulator@2 {
		compatible = "regulator-fixed";
		regulator-name = "wlan-en-regulator";
		regulator-min-microvolt = <1800000>;
		regulator-max-microvolt = <1800000>;
		startup-delay-us = <70000>;

		/* WL_EN */
		gpio = <&gpio3 9 0>;
		enable-active-high;
	};
};

&am33xx_pinmux {
	bt_pins: pinmux_bt_pins {
		pinctrl-single,pins = <
			AM33XX_PADCONF(AM335X_PIN_MII1_TXD0, PIN_OUTPUT_PULLUP, MUX_MODE7)	/* gmii1_txd0.gpio0_28 - BT_EN */
		>;
	};

	mmc3_pins: pinmux_mmc3_pins {
		pinctrl-single,pins = <
			AM33XX_PADCONF(AM335X_PIN_MII1_RXD1, PIN_INPUT_PULLUP, MUX_MODE6 ) /* (L15) gmii1_rxd1.mmc2_clk */
			AM33XX_PADCONF(AM335X_PIN_MII1_TX_EN, PIN_INPUT_PULLUP, MUX_MODE6 ) /* (J16) gmii1_txen.mmc2_cmd */
			AM33XX_PADCONF(AM335X_PIN_MII1_RX_DV, PIN_INPUT_PULLUP, MUX_MODE5 ) /* (J17) gmii1_rxdv.mmc2_dat0 */
			AM33XX_PADCONF(AM335X_PIN_MII1_TXD3, PIN_INPUT_PULLUP, MUX_MODE5 ) /* (J18) gmii1_txd3.mmc2_dat1 */
			AM33XX_PADCONF(AM335X_PIN_MII1_TXD2, PIN_INPUT_PULLUP, MUX_MODE5 ) /* (K15) gmii1_txd2.mmc2_dat2 */
			AM33XX_PADCONF(AM335X_PIN_MII1_COL, PIN_INPUT_PULLUP, MUX_MODE5 ) /* (H16) gmii1_col.mmc2_dat3 */
		>;
	};

	uart3_pins: pinmux_uart3_pins {
		pinctrl-single,pins = <
			AM33XX_PADCONF(AM335X_PIN_MII1_RXD3, PIN_INPUT_PULLUP, MUX_MODE1)	/* gmii1_rxd3.uart3_rxd */
			AM33XX_PADCONF(AM335X_PIN_MII1_RXD2, PIN_OUTPUT_PULLDOWN, MUX_MODE1)	/* gmii1_rxd2.uart3_txd */
			AM33XX_PADCONF(AM335X_PIN_MDIO, PIN_INPUT, MUX_MODE3)		/* mdio_data.uart3_ctsn */
			AM33XX_PADCONF(AM335X_PIN_MDC, PIN_OUTPUT_PULLDOWN, MUX_MODE3)	/* mdio_clk.uart3_rtsn */
		>;
	};

	wl18xx_pins: pinmux_wl18xx_pins {
		pinctrl-single,pins = <
			AM33XX_PADCONF(AM335X_PIN_MII1_TX_CLK, PIN_OUTPUT_PULLDOWN, MUX_MODE7)	/* gmii1_txclk.gpio3_9 WL_EN */
			AM33XX_PADCONF(AM335X_PIN_RMII1_REF_CLK, PIN_INPUT_PULLDOWN, MUX_MODE7)	/* rmii1_refclk.gpio0_29 WL_IRQ */
			AM33XX_PADCONF(AM335X_PIN_MII1_RX_CLK, PIN_OUTPUT_PULLUP, MUX_MODE7)	/* gmii1_rxclk.gpio3_10 LS_BUF_EN */
		>;
	};
};

&mac {
	status = "disabled";
};

&mmc3 {
	dmas = <&edma_xbar 12 0 1
		&edma_xbar 13 0 2>;
	dma-names = "tx", "rx";
	status = "okay";
	vmmc-supply = <&wlan_en_reg>;
	bus-width = <4>;
	non-removable;
	cap-power-off-card;
	keep-power-in-suspend;
	pinctrl-names = "default";
	pinctrl-0 = <&mmc3_pins &wl18xx_pins>;

	#address-cells = <1>;
	#size-cells = <0>;
	wlcore: wlcore@2 {
		compatible = "ti,wl1835";
		reg = <2>;
		interrupt-parent = <&gpio0>;
		interrupts = <29 IRQ_TYPE_EDGE_RISING>;
	};
};

&uart3 {
	pinctrl-names = "default";
	pinctrl-0 = <&uart3_pins &bt_pins>;
	status = "okay";

	bluetooth {
		compatible = "ti,wl1835-st";
		enable-gpios = <&gpio0 28 GPIO_ACTIVE_HIGH>;
	};
};

&gpio3 {
	ls-buf-en-hog {
		gpio-hog;
		gpios = <10 GPIO_ACTIVE_HIGH>;
		output-high;
		line-name = "LS_BUF_EN";
	};
};