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/*
* Copyright (C) 2015 Freescale Semiconductor, Inc.
*
* 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.
*/
/*
* NOTE: This DTS file is written for plugging in Murata Wi-Fi/BT EVK into SD3
* slot using Murata i.MX InterConnect Ver 1.0 Adapter AND SD Card Extender on
* SD2 slot. Bluetooth UART connects via SD3 EMMC/MMC Plus pinout.
* WL_REG_ON/BT_REG_ON/WL_HOST_WAKE connect via SD Card Extender.
*/
#include "imx6sx-sdb.dts"
/ {
modem_reset: modem-reset {
compatible = "gpio-reset";
reset-gpios = <&gpio6 11 GPIO_ACTIVE_LOW>;
reset-delay-us = <1000>;
#reset-cells = <0>;
};
regulators {
wlreg_on: fixedregulator@100 {
compatible = "regulator-fixed";
regulator-min-microvolt = <5000000>;
regulator-max-microvolt = <5000000>;
regulator-name = "wlreg_on";
gpio = <&gpio6 10 0>;
startup-delay-us = <100>;
enable-active-high;
};
};
bcmdhd_wlan_0: bcmdhd_wlan@0 {
compatible = "android,bcmdhd_wlan";
/* WL_HOST_WAKE: SD2_DAT1 (gpio6 9) */
gpios = <&gpio6 9 0>;
wlreg_on-supply = <&wlreg_on>;
};
};
&iomuxc {
imx6sx-sdb-murata-v1_sdext {
pinctrl_bt: btgrp {
fsl,pins = <
MX6SX_PAD_SD2_DATA3__GPIO6_IO_11 0x13069 /* BT_REG_ON */
>;
};
pinctrl_uart3: uart3grp {
fsl,pins = <
MX6SX_PAD_SD3_DATA4__UART3_RX 0x1b0b1
MX6SX_PAD_SD3_DATA5__UART3_TX 0x1b0b1
MX6SX_PAD_SD3_DATA7__UART3_CTS_B 0x1b0b1
MX6SX_PAD_SD3_DATA6__UART3_RTS_B 0x1b0b1
>;
};
/* change MUXing on SD2 slot for control signals. */
pinctrl_usdhc2_1: usdhc2grp-1 {
fsl,pins = <
MX6SX_PAD_SD2_CMD__USDHC2_CMD 0x17059
MX6SX_PAD_SD2_CLK__USDHC2_CLK 0x10059
MX6SX_PAD_SD2_DATA0__USDHC2_DATA0 0x17059
>;
};
/* Murata change SD3 to 4-bit SDIO only; use upper 4-bits for UART. */
pinctrl_wifi: wifigrp {
fsl,pins = <
MX6SX_PAD_SD3_CMD__USDHC3_CMD 0x17069
MX6SX_PAD_SD3_CLK__USDHC3_CLK 0x10071
MX6SX_PAD_SD3_DATA0__USDHC3_DATA0 0x17069
MX6SX_PAD_SD3_DATA1__USDHC3_DATA1 0x17069
MX6SX_PAD_SD3_DATA2__USDHC3_DATA2 0x17069
MX6SX_PAD_SD3_DATA3__USDHC3_DATA3 0x17069
MX6SX_PAD_KEY_COL0__GPIO2_IO_10 0x17059 /* CD */
MX6SX_PAD_KEY_ROW0__GPIO2_IO_15 0x17059 /* WP */
/* Murata Module control signals */
MX6SX_PAD_SD2_DATA1__GPIO6_IO_9 0x13069 /* WL_HOST_WAKE */
MX6SX_PAD_SD2_DATA2__GPIO6_IO_10 0x13069 /* WL_REG_ON */
>;
};
};
};
&uart3 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_uart3
&pinctrl_bt>;
fsl,uart-has-rtscts;
resets = <&modem_reset>;
status = "okay";
};
&usdhc2 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_usdhc2_1>;
bus-width = <1>;
};
&vcc_sd3 {
regulator-always-on;
};
&usdhc3 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_wifi>;
bus-width = <4>;
no-1-8-v; /* force 3.3V VIO */
non-removable;
cd-post;
pm-ignore-notify;
wifi-host; /* pull in card detect mechanism for BCMDHD driver */
status = "okay";
};
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