BBB-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 <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 */
        >;
    };
    spi0_pins: pinmux_spi0_pins{
        pinctrl-single,pins = < 0x150 0x30 0x154 0x30 0x158 0x10 0x15c 0x10 >;
    };
    spi1_pins: pinmux_spi1_pins{
        pinctrl-single,pins = < 0x190 0x33 0x194 0x33 0x198 0x13 0x19c 0x13 >;
    };
    uart1_pins: pinmux_uart1_pins {
        pinctrl-single,pins = < 0x180 0x30 0x00 0x184 0x00 0x00 >;
        phandle = < 0x34 >;
    };
};

&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 {
        gpio-hog;
        gpios = <10 GPIO_ACTIVE_HIGH>;
        output-high;
        line-name = "LS_BUF_EN";
        };
    };
&spi0 {
    status="okay";
    pinctrl-names = "default";
    pinctrl-0 = <&spi0_pins>;
    };

&spi1 {
    status="okay";
    pinctrl-names = "default";
    pinctrl-0 = <&spi1_pins>;
    };

&uart1 {
    status="okay";
    pinctrl-names = "default";
    pinctrl-0 = <&uart1_pins>;
    };

&spi0 {
    // NOTE: consider giving the node a descriptive name like flash@0

    spidev@0 {
        reg = <0>;
        compatible = "spidev";

        // create symlink (using /etc/udev/rules.d/10-of-symlink.rules)
        // NOTE: again, consider using something more descriptive

        // XXX replace by actual max frequency supported by device
        spi-max-frequency = <48000000>;

        // XXX this selects SPI mode 3 by default, adjust as appropriate
        spi-cpol;
        spi-cpha;
    };