ARM: dts: Add am335x-boneblack-wireless

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|]

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@4a100000/slave@4a100200/mac-address
Signed-off-by: Robert Nelson <robertcnelson@gmail.com>
CC: Tony Lindgren <tony@atomide.com>
Acked-by: Jason Kridner <jkridner@beagleboard.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>

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 \

arch/arm/boot/dts/am335x-boneblack-wireless.dts

+/*
+ * 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@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@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";
+	};
+};