diff options
Diffstat (limited to 'arch/arm/boot/dts/imx6sx-sdb-btwifi.dts')
| -rw-r--r-- | arch/arm/boot/dts/imx6sx-sdb-btwifi.dts | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/imx6sx-sdb-btwifi.dts b/arch/arm/boot/dts/imx6sx-sdb-btwifi.dts new file mode 100644 index 000000000000..698e49ef7734 --- /dev/null +++ b/arch/arm/boot/dts/imx6sx-sdb-btwifi.dts @@ -0,0 +1,120 @@ +/* + * 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"; +}; |