SeeedStudio BeagleBone Green Wireless (BBGW) is an expansion of the SeeedStudio Green (BBG) with the Ethernet replaced by a TI wl1835 wireless module. This board can be indentified by the GW1x value after A335BNLT (BBB) in the at24 eeprom: GW1x [aa 55 33 ee 41 33 33 35 42 4e 4c 54 47 57 31 41 |.U3.A335BNLTGW1A|] http://beagleboard.org/green-wireless http://wiki.seeed.cc/BeagleBone_Green_Wireless/ firmware: https://github.com/beagleboard/beaglebone-black-wireless/tree/master/firmware wl18xx mac address: Stored in at24 eeprom at address 5-16: hexdump -e '8/1 "%c"' /sys/bus/i2c/devices/0-0050/eeprom | cut -b 5-16 Signed-off-by: Robert Nelson <robertcnelson@xxxxxxxxx> CC: Tony Lindgren <tony@xxxxxxxxxxx> CC: Jason Kridner <jkridner@xxxxxxxxxxxxxxx> --- arch/arm/boot/dts/Makefile | 1 + arch/arm/boot/dts/am335x-bonegreen-wireless.dts | 126 ++++++++++++++++++++++++ 2 files changed, 127 insertions(+) create mode 100644 arch/arm/boot/dts/am335x-bonegreen-wireless.dts diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile index 9415a49bd11b..6c0a3e3fdf30 100644 --- a/arch/arm/boot/dts/Makefile +++ b/arch/arm/boot/dts/Makefile @@ -565,6 +565,7 @@ dtb-$(CONFIG_SOC_AM33XX) += \ am335x-boneblack.dtb \ am335x-boneblack-wireless.dtb \ am335x-bonegreen.dtb \ + am335x-bonegreen-wireless.dtb \ am335x-chiliboard.dtb \ am335x-cm-t335.dtb \ am335x-evm.dtb \ diff --git a/arch/arm/boot/dts/am335x-bonegreen-wireless.dts b/arch/arm/boot/dts/am335x-bonegreen-wireless.dts new file mode 100644 index 000000000000..9d1a0fd555f3 --- /dev/null +++ b/arch/arm/boot/dts/am335x-bonegreen-wireless.dts @@ -0,0 +1,126 @@ +/* + * 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-bonegreen-common.dtsi" +#include <dt-bindings/interrupt-controller/irq.h> + +/ { + model = "TI AM335x BeagleBone Green Wireless"; + compatible = "ti,am335x-bone-green-wireless", "ti,am335x-bone-green", "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 = <&gpio0 26 0>; + enable-active-high; + }; +}; + +&am33xx_pinmux { + bt_pins: pinmux_bt_pins { + pinctrl-single,pins = < + AM33XX_IOPAD(0x878, PIN_OUTPUT_PULLUP | MUX_MODE7) /* gpmc_ad12.gpio1_28 BT_EN */ + >; + }; + + mmc3_pins: pinmux_mmc3_pins { + pinctrl-single,pins = < + AM33XX_IOPAD(0x830, PIN_INPUT_PULLUP | MUX_MODE3) /* gpmc_ad12.mmc2_dat0 */ + AM33XX_IOPAD(0x834, PIN_INPUT_PULLUP | MUX_MODE3) /* gpmc_ad13.mmc2_dat1 */ + AM33XX_IOPAD(0x838, PIN_INPUT_PULLUP | MUX_MODE3) /* gpmc_ad14.mmc2_dat2 */ + AM33XX_IOPAD(0x83c, PIN_INPUT_PULLUP | MUX_MODE3) /* gpmc_ad15.mmc2_dat3 */ + AM33XX_IOPAD(0x888, PIN_INPUT_PULLUP | MUX_MODE3) /* gpmc_csn3.mmc2_cmd */ + AM33XX_IOPAD(0x88c, PIN_INPUT_PULLUP | MUX_MODE3) /* gpmc_clk.mmc2_clk */ + >; + }; + + 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(0x828, PIN_OUTPUT_PULLDOWN | MUX_MODE7) /* gpmc_ad10.gpio0_26 WL_EN */ + AM33XX_IOPAD(0x82C, PIN_INPUT_PULLDOWN | MUX_MODE7) /* gpmc_ad11.gpio0_27 WL_IRQ */ + AM33XX_IOPAD(0x87C, PIN_OUTPUT_PULLUP | MUX_MODE7) /* gpmc_csn0.gpio1_29 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 = <27 IRQ_TYPE_EDGE_RISING>; + }; +}; + +&uart3 { + pinctrl-names = "default"; + pinctrl-0 = <&uart3_pins &bt_pins>; + status = "okay"; +}; + +&gpio1 { + ls_buf_en { + gpio-hog; + gpios = <29 GPIO_ACTIVE_HIGH>; + output-high; + line-name = "LS_BUF_EN"; + }; +}; + +/* BT_AUD_OUT from wl1835 has to be pulled low when WL_EN is activated.*/ +/* in case it isn't, wilink8 ends up in one of the test modes that */ +/* intruces various issues (elp wkaeup timeouts etc.) */ +/* On the BBGW this pin is routed through the level shifter (U21) that */ +/* introduces a pullup on the line and wilink8 ends up in a bad state. */ +/* use a gpio hog to force this pin low. An alternative may be adding */ +/* an external pulldown on U21 pin 4. */ + +&gpio3 { + bt_aud_in { + gpio-hog; + gpios = <16 GPIO_ACTIVE_HIGH>; + output-low; + line-name = "MCASP0_AHCLKR"; + }; +}; -- 2.11.0 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
