ARM: dts: udoo_neo: Add Wifi support

Udoo Neo has a TI WL1831 Wifi chip connected to the USDHC3 port.

Add support for it.

Signed-off-by: Breno Lima <breno.lima@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm/boot/dts/imx6sx-udoo-neo.dtsi b/arch/arm/boot/dts/imx6sx-udoo-neo.dtsi
index 99e1aea095399d4da14edfb73960341453158322..efdfd851c2c31a2525c02454ebe85e199a644e3e 100644 (file)
--- a/arch/arm/boot/dts/imx6sx-udoo-neo.dtsi
+++ b/arch/arm/boot/dts/imx6sx-udoo-neo.dtsi
@@ -97,6 +97,16 @@
                gpio = <&gpio4 12 GPIO_ACTIVE_HIGH>;
                enable-active-high;
        };
+
+       reg_wlan: regulator-wlan {
+               compatible = "regulator-fixed";
+               regulator-name = "wlan-en-regulator";
+               regulator-min-microvolt = <1800000>;
+               regulator-max-microvolt = <1800000>;
+               gpio = <&gpio2 12 GPIO_ACTIVE_HIGH>;
+               startup-delay-us = <70000>;
+               enable-active-high;
+       };
 };
 
 &cpu0 {
@@ -296,6 +306,19 @@
                        <MX6SX_PAD_SD2_DATA3__USDHC2_DATA3      0x17059>,
                        <MX6SX_PAD_SD1_DATA0__GPIO6_IO_2        0x17059>; /* CD */
        };
+
+       pinctrl_usdhc3: usdhc3grp {
+               fsl,pins =
+                       <MX6SX_PAD_KEY_COL2__GPIO2_IO_12        0x15059>,
+                       <MX6SX_PAD_KEY_ROW1__GPIO2_IO_16        0x13059>,
+                       <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_SD3_CMD__USDHC3_CMD          0x17069>,
+                       <MX6SX_PAD_SD3_CLK__USDHC3_CLK          0x10069>,
+                       <MX6SX_PAD_CSI_MCLK__OSC32K_32K_OUT     0x10059>;
+       };
 };
 
 &uart1 {
@@ -351,3 +374,25 @@
        wakeup-source;
        status = "okay";
 };
+
+&usdhc3 { /* Wi-Fi */
+       pinctrl-names = "default";
+       pinctrl-0 = <&pinctrl_usdhc3>;
+       non-removable;
+       vmmc-supply = <&reg_wlan>;
+       cap-power-off-card;
+       wakeup-source;
+       keep-power-in-suspend;
+       #address-cells = <1>;
+       #size-cells = <0>;
+       status = "okay";
+
+       wlcore: wlcore@2 {
+               compatible = "ti,wl1831";
+               reg = <2>;
+               interrupt-parent = <&gpio2>;
+               interrupts = <16 IRQ_TYPE_EDGE_RISING>;
+               ref-clock-frequency = <38400000>;
+               tcxo-clock-frequency = <26000000>;
+       };
+};