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Wandboard WLAN Bring up Information.

Question asked by Dilshad Alam on Jun 25, 2015
Latest reply on Jun 25, 2015 by Dilshad Alam

I am referring Wandboard DTS file, imx6qdl-wandboard.dtsi

  &usdhc1 {

  pinctrl-names = "default";

  pinctrl-0 = <&pinctrl_usdhc1>;

  cd-gpios = <&gpio1 2 0>;

  status = "okay";



  Where cd-gpios are used in Schematic. I tried searching GPIO1_IO2 but could not find any reference for that.

  I saw other pins configuration in pinctrl_hog group.

  MX6QDL_PAD_EIM_EB1__GPIO2_IO29   0x80000000 /* WL_REF_ON */

  MX6QDL_PAD_EIM_A25__GPIO5_IO02   0x80000000 /* WL_RST_N */

  MX6QDL_PAD_ENET_RXD1__GPIO1_IO26 0x80000000 /* WL_REG_ON */

  MX6QDL_PAD_ENET_TXD1__GPIO1_IO29 0x80000000 /* WL_HOST_WAKE */

  MX6QDL_PAD_ENET_TXD0__GPIO1_IO30 0x80000000 /* WL_WAKE */


  I am able to Correlate with Schematic. But I am failed to understand purpose of <&gpio1 2 0>; pin?


  I need one more information regarding WLAN chip active. Is it not required to send Reset Pulse for some duration on  WL_RST_N

  pin to make it active (I mean High to low or Low to High )