[PATCH 2/4] ARM: dts: Add am335x-boneblack-wireless

[Jason Kridner]

> On Dec 27, 2016, at 11:58 AM, Robert Nelson <robertcnelson at gmail.com> wrote:
> 
> BeagleBone Black Wireless is clone of the BeagleBone Black (BBB) with the Ethernet
> replaced by a TI wl1835 wireless module.
> 
> This board can be indentified by the BWAx value after A335BNLT (BBB) in the at24 eeprom:
> BWAx [aa 55 33 ee 41 33 33 35  42 4e 4c 54 42 57 41 35  |.U3.A335BNLTBWA5|]

I believe the correct statement is BWxx, but BWBx reserves the option to be software incompatible in some way. My preference is to have it boot anyway, but I believe that is only dependent in the bootloader. 

> 
> http://beagleboard.org/black-wireless
> https://github.com/beagleboard/beaglebone-black-wireless
> 
> firmware: https://github.com/beagleboard/beaglebone-black-wireless/tree/master/firmware
> wl18xx mac address: /proc/device-tree/ocp/ethernet at 4a100000/slave at 4a100200/mac-address
> 
> Signed-off-by: Robert Nelson <robertcnelson at gmail.com>
> CC: Tony Lindgren <tony at atomide.com>
> CC: Jason Kridner <jkridner at beagleboard.org>
> ---
> arch/arm/boot/dts/Makefile                      |   1 +
> arch/arm/boot/dts/am335x-boneblack-wireless.dts | 109 ++++++++++++++++++++++++
> 2 files changed, 110 insertions(+)
> create mode 100644 arch/arm/boot/dts/am335x-boneblack-wireless.dts
> 
> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> index cccdbcb557b6..9415a49bd11b 100644
> --- a/arch/arm/boot/dts/Makefile
> +++ b/arch/arm/boot/dts/Makefile
> @@ -563,6 +563,7 @@ dtb-$(CONFIG_SOC_AM33XX) += \
>    am335x-base0033.dtb \
>    am335x-bone.dtb \
>    am335x-boneblack.dtb \
> +    am335x-boneblack-wireless.dtb \
>    am335x-bonegreen.dtb \
>    am335x-chiliboard.dtb \
>    am335x-cm-t335.dtb \
> diff --git a/arch/arm/boot/dts/am335x-boneblack-wireless.dts b/arch/arm/boot/dts/am335x-boneblack-wireless.dts
> new file mode 100644
> index 000000000000..105bd10655f7
> --- /dev/null
> +++ b/arch/arm/boot/dts/am335x-boneblack-wireless.dts
> @@ -0,0 +1,109 @@
> +/*
> + * 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-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 at 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_IOPAD(0x928, PIN_OUTPUT_PULLUP | MUX_MODE7)    /* gmii1_txd0.gpio0_28 - BT_EN */
> +        >;
> +    };
> +
> +    mmc3_pins: pinmux_mmc3_pins {
> +        pinctrl-single,pins = <
> +            AM33XX_IOPAD(0x93c, PIN_INPUT_PULLUP | MUX_MODE6 ) /* (L15) gmii1_rxd1.mmc2_clk */
> +            AM33XX_IOPAD(0x914, PIN_INPUT_PULLUP | MUX_MODE6 ) /* (J16) gmii1_txen.mmc2_cmd */
> +            AM33XX_IOPAD(0x918, PIN_INPUT_PULLUP | MUX_MODE5 ) /* (J17) gmii1_rxdv.mmc2_dat0 */
> +            AM33XX_IOPAD(0x91c, PIN_INPUT_PULLUP | MUX_MODE5 ) /* (J18) gmii1_txd3.mmc2_dat1 */
> +            AM33XX_IOPAD(0x920, PIN_INPUT_PULLUP | MUX_MODE5 ) /* (K15) gmii1_txd2.mmc2_dat2 */
> +            AM33XX_IOPAD(0x908, PIN_INPUT_PULLUP | MUX_MODE5 ) /* (H16) gmii1_col.mmc2_dat3 */
> +        >;
> +    };
> +
> +    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(0x92c, PIN_OUTPUT_PULLDOWN | MUX_MODE7)    /* gmii1_txclk.gpio3_9 WL_EN */
> +            AM33XX_IOPAD(0x944, PIN_INPUT_PULLDOWN | MUX_MODE7)    /* rmii1_refclk.gpio0_29 WL_IRQ */
> +            AM33XX_IOPAD(0x930, 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;
> +    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 at 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";
> +};
> +
> +&gpio3 {
> +    ls_buf_en {
> +        gpio-hog;
> +        gpios = <10 GPIO_ACTIVE_HIGH>;
> +        output-high;
> +        line-name = "LS_BUF_EN";
> +    };
> +};
> -- 
> 2.11.0
>