| /* |
| * 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"; |
| }; |
