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