1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Copyright (C) 2012 Texas Instruments Incorporated - https://www.ti.com/
4 */
5/dts-v1/;
6
7#include "am33xx.dtsi"
8#include "am335x-bone-common.dtsi"
9#include "am335x-bonegreen-common.dtsi"
10#include <dt-bindings/interrupt-controller/irq.h>
11
12/ {
13	model = "TI AM335x BeagleBone Green Wireless";
14	compatible = "ti,am335x-bone-green-wireless", "ti,am335x-bone-green", "ti,am335x-bone-black", "ti,am335x-bone", "ti,am33xx";
15
16	wlan_en_reg: fixedregulator@2 {
17		compatible = "regulator-fixed";
18		regulator-name = "wlan-en-regulator";
19		regulator-min-microvolt = <1800000>;
20		regulator-max-microvolt = <1800000>;
21		startup-delay-us = <70000>;
22
23		/* WL_EN */
24		gpio = <&gpio0 26 0>;
25		enable-active-high;
26	};
27};
28
29&am33xx_pinmux {
30	bt_pins: bt-pins {
31		pinctrl-single,pins = <
32			AM33XX_PADCONF(AM335X_PIN_GPMC_BEN1, PIN_OUTPUT_PULLUP, MUX_MODE7)	/* gpmc_ad12.gpio1_28 BT_EN */
33		>;
34	};
35
36	mmc3_pins: mmc3-pins {
37		pinctrl-single,pins = <
38			AM33XX_PADCONF(AM335X_PIN_GPMC_AD12, PIN_INPUT_PULLUP, MUX_MODE3)	/* gpmc_ad12.mmc2_dat0 */
39			AM33XX_PADCONF(AM335X_PIN_GPMC_AD13, PIN_INPUT_PULLUP, MUX_MODE3)	/* gpmc_ad13.mmc2_dat1 */
40			AM33XX_PADCONF(AM335X_PIN_GPMC_AD14, PIN_INPUT_PULLUP, MUX_MODE3)	/* gpmc_ad14.mmc2_dat2 */
41			AM33XX_PADCONF(AM335X_PIN_GPMC_AD15, PIN_INPUT_PULLUP, MUX_MODE3)	/* gpmc_ad15.mmc2_dat3 */
42			AM33XX_PADCONF(AM335X_PIN_GPMC_CSN3, PIN_INPUT_PULLUP, MUX_MODE3)	/* gpmc_csn3.mmc2_cmd */
43			AM33XX_PADCONF(AM335X_PIN_GPMC_CLK, PIN_INPUT_PULLUP, MUX_MODE3)	/* gpmc_clk.mmc2_clk */
44		>;
45	};
46
47	uart3_pins: uart3-pins {
48		pinctrl-single,pins = <
49			AM33XX_PADCONF(AM335X_PIN_MII1_RXD3, PIN_INPUT_PULLUP, MUX_MODE1)	/* gmii1_rxd3.uart3_rxd */
50			AM33XX_PADCONF(AM335X_PIN_MII1_RXD2, PIN_OUTPUT_PULLDOWN, MUX_MODE1)	/* gmii1_rxd2.uart3_txd */
51			AM33XX_PADCONF(AM335X_PIN_MDIO, PIN_INPUT, MUX_MODE3)		/* mdio_data.uart3_ctsn */
52			AM33XX_PADCONF(AM335X_PIN_MDC, PIN_OUTPUT_PULLDOWN, MUX_MODE3)	/* mdio_clk.uart3_rtsn */
53		>;
54	};
55
56	wl18xx_pins: wl18xx-pins {
57		pinctrl-single,pins = <
58			AM33XX_PADCONF(AM335X_PIN_GPMC_AD10, PIN_OUTPUT_PULLDOWN, MUX_MODE7)	/* gpmc_ad10.gpio0_26 WL_EN */
59			AM33XX_PADCONF(AM335X_PIN_GPMC_AD11, PIN_INPUT_PULLDOWN, MUX_MODE7)	/* gpmc_ad11.gpio0_27 WL_IRQ */
60			AM33XX_PADCONF(AM335X_PIN_GPMC_CSN0, PIN_OUTPUT_PULLUP, MUX_MODE7)	/* gpmc_csn0.gpio1_29 LS_BUF_EN */
61		>;
62	};
63};
64
65&mac_sw {
66	status = "disabled";
67};
68
69&mmc3 {
70	dmas = <&edma_xbar 12 0 1
71		&edma_xbar 13 0 2>;
72	dma-names = "tx", "rx";
73	status = "okay";
74	vmmc-supply = <&wlan_en_reg>;
75	bus-width = <4>;
76	non-removable;
77	cap-power-off-card;
78	keep-power-in-suspend;
79	pinctrl-names = "default";
80	pinctrl-0 = <&mmc3_pins &wl18xx_pins>;
81
82	#address-cells = <1>;
83	#size-cells = <0>;
84	wlcore: wlcore@2 {
85		compatible = "ti,wl1835";
86		reg = <2>;
87		interrupt-parent = <&gpio0>;
88		interrupts = <27 IRQ_TYPE_EDGE_RISING>;
89	};
90};
91
92&uart3 {
93	pinctrl-names = "default";
94	pinctrl-0 = <&uart3_pins &bt_pins>;
95	status = "okay";
96
97	bluetooth {
98		compatible = "ti,wl1835-st";
99		enable-gpios = <&gpio1 28 GPIO_ACTIVE_HIGH>;
100	};
101};
102
103&gpio1 {
104	ls-buf-en-hog {
105		gpio-hog;
106		gpios = <29 GPIO_ACTIVE_HIGH>;
107		output-high;
108		line-name = "LS_BUF_EN";
109	};
110};
111
112/* BT_AUD_OUT from wl1835 has to be pulled low when WL_EN is activated.*/
113/* in case it isn't, wilink8 ends up in one of the test modes that     */
114/* intruces various issues (elp wkaeup timeouts etc.)                  */
115/* On the BBGW this pin is routed through the level shifter (U21) that */
116/* introduces a pullup on the line and wilink8 ends up in a bad state. */
117/* use a gpio hog to force this pin low. An alternative may be adding  */
118/* an external pulldown on U21 pin 4.                                  */
119
120&gpio3 {
121	bt-aud-in-hog {
122		gpio-hog;
123		gpios = <16 GPIO_ACTIVE_HIGH>;
124		output-low;
125		line-name = "MCASP0_AHCLKR";
126	};
127};
128