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/*
* Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
/dts-v1/;
#include "am33xx.dtsi"
#include "am335x-bone-common.dtsi"
#include "am335x-bonegreen-common.dtsi"
#include <dt-bindings/interrupt-controller/irq.h>
/ {
model = "TI AM335x BeagleBone Green Wireless";
compatible = "ti,am335x-bone-green-wireless", "ti,am335x-bone-green", "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 = <&gpio0 26 0>;
enable-active-high;
};
};
&am33xx_pinmux {
bt_pins: pinmux_bt_pins {
pinctrl-single,pins = <
AM33XX_IOPAD(0x878, PIN_OUTPUT_PULLUP | MUX_MODE7) /* gpmc_ad12.gpio1_28 BT_EN */
>;
};
mmc3_pins: pinmux_mmc3_pins {
pinctrl-single,pins = <
AM33XX_IOPAD(0x830, PIN_INPUT_PULLUP | MUX_MODE3) /* gpmc_ad12.mmc2_dat0 */
AM33XX_IOPAD(0x834, PIN_INPUT_PULLUP | MUX_MODE3) /* gpmc_ad13.mmc2_dat1 */
AM33XX_IOPAD(0x838, PIN_INPUT_PULLUP | MUX_MODE3) /* gpmc_ad14.mmc2_dat2 */
AM33XX_IOPAD(0x83c, PIN_INPUT_PULLUP | MUX_MODE3) /* gpmc_ad15.mmc2_dat3 */
AM33XX_IOPAD(0x888, PIN_INPUT_PULLUP | MUX_MODE3) /* gpmc_csn3.mmc2_cmd */
AM33XX_IOPAD(0x88c, PIN_INPUT_PULLUP | MUX_MODE3) /* gpmc_clk.mmc2_clk */
>;
};
uart3_pins: pinmux_uart3_pins {
pinctrl-single,pins = <
AM33XX_IOPAD(0x934, PIN_INPUT_PULLUP | MUX_MODE1) /* gmii1_rxd3.uart3_rxd */
AM33XX_IOPAD(0x938, PIN_OUTPUT_PULLDOWN | MUX_MODE1) /* gmii1_rxd2.uart3_txd */
AM33XX_IOPAD(0x948, PIN_INPUT | MUX_MODE3) /* mdio_data.uart3_ctsn */
AM33XX_IOPAD(0x94c, PIN_OUTPUT_PULLDOWN | MUX_MODE3) /* mdio_clk.uart3_rtsn */
>;
};
wl18xx_pins: pinmux_wl18xx_pins {
pinctrl-single,pins = <
AM33XX_IOPAD(0x828, PIN_OUTPUT_PULLDOWN | MUX_MODE7) /* gpmc_ad10.gpio0_26 WL_EN */
AM33XX_IOPAD(0x82C, PIN_INPUT_PULLDOWN | MUX_MODE7) /* gpmc_ad11.gpio0_27 WL_IRQ */
AM33XX_IOPAD(0x87C, PIN_OUTPUT_PULLUP | MUX_MODE7) /* gpmc_csn0.gpio1_29 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;
ti,needs-special-hs-handling;
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 = <27 IRQ_TYPE_EDGE_RISING>;
};
};
&uart3 {
pinctrl-names = "default";
pinctrl-0 = <&uart3_pins &bt_pins>;
status = "okay";
bluetooth {
compatible = "ti,wl1835-st";
enable-gpios = <&gpio1 28 GPIO_ACTIVE_HIGH>;
};
};
&gpio1 {
ls_buf_en {
gpio-hog;
gpios = <29 GPIO_ACTIVE_HIGH>;
output-high;
line-name = "LS_BUF_EN";
};
};
/* BT_AUD_OUT from wl1835 has to be pulled low when WL_EN is activated.*/
/* in case it isn't, wilink8 ends up in one of the test modes that */
/* intruces various issues (elp wkaeup timeouts etc.) */
/* On the BBGW this pin is routed through the level shifter (U21) that */
/* introduces a pullup on the line and wilink8 ends up in a bad state. */
/* use a gpio hog to force this pin low. An alternative may be adding */
/* an external pulldown on U21 pin 4. */
&gpio3 {
bt_aud_in {
gpio-hog;
gpios = <16 GPIO_ACTIVE_HIGH>;
output-low;
line-name = "MCASP0_AHCLKR";
};
};
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