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