librecmc-gitorious/target/linux/sunxi/patches-3.14/232-1-dt-sun7i-add-wifi-to-cubietruck.patch

From 3e7fc7d394db0783996519f2d5affde5152a628e Mon Sep 17 00:00:00 2001
From: Chen-Yu Tsai <wens@csie.org>
Date: Thu, 26 Dec 2013 17:14:33 +0800
Subject: [PATCH] ARM: dts: sun7i: add WiFi module to Cubietruck DTS

The CubieTruck has an AMPAK AP6210 WiFi+Bluetooth module. The WiFi
part is a BCM43362 IC connected to MMC2 in the A20 SoC via SDIO.
The IC also takes a 32.768 KHz low power clock input, and a power
enable signal via GPIO.

The WiFi module supports out-of-band interrupt signaling via GPIO,
but this is not supported in this patch.
---
 arch/arm/boot/dts/sun7i-a20-cubietruck.dts | 47 ++++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)

--- a/arch/arm/boot/dts/sun7i-a20-cubietruck.dts
+++ b/arch/arm/boot/dts/sun7i-a20-cubietruck.dts
@@ -28,6 +28,23 @@
 			status = "okay";
 		};
 
+		mmc3: mmc@01c12000 {
+			pinctrl-names = "default", "default";
+			pinctrl-0 = <&mmc3_pins_a>;
+			pinctrl-1 = <&wifi_host_wake_pin>;
+			vmmc-supply = <&reg_vmmc3>;
+			non-removable;
+			status = "okay";
+
+			brcmf: bcrmf@0 {
+				/* out of band interrupt not working */
+				/* compatible = "broadcom,bcm43362"; */
+				interrupt-parent = <&pio>;
+				interrupts = <10 2>; /* EINT10 */
+				status = "okay";
+			};
+		};
+
 		usbphy: phy@01c13400 {
 			usb1_vbus-supply = <&reg_usb1_vbus>;
 			usb2_vbus-supply = <&reg_usb2_vbus>;
@@ -56,6 +73,18 @@
 		};
 
 		pinctrl@01c20800 {
+			mmc3_pins_a: mmc3@0 {
+				/* AP6210 requires pull-up */
+				allwinner,pull = <1>;
+			};
+
+			vmmc3_pin_cubietruck: vmmc3_pin@0 {
+				allwinner,pins = "PH9";
+				allwinner,function = "gpio_out";
+				allwinner,drive = <0>;
+				allwinner,pull = <0>;
+			};
+
 			ahci_pwr_pin_cubietruck: ahci_pwr_pin@1 {
 				allwinner,pins = "PH12";
 				allwinner,function = "gpio_out";
@@ -99,6 +128,13 @@
 
 				/include/ "x-powers-axp209.dtsi"
 			};
+
+			wifi_host_wake_pin: wifi_host_wake_pin@0 {
+				allwinner,pins = "PH10";
+				allwinner,function = "gpio_in";
+				allwinner,drive = <0>;
+				allwinner,pull = <0>;
+			};
 		};
 
 		i2c0: i2c@01c2ac00 {
@@ -189,4 +225,15 @@
 	reg_usb2_vbus: usb2-vbus {
 		status = "okay";
 	};
+
+	reg_vmmc3: vmmc3 {
+		compatible = "regulator-fixed";
+		pinctrl-names = "default";
+		pinctrl-0 = <&vmmc3_pin_cubietruck>;
+		regulator-name = "vmmc3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		enable-active-high;
+		gpio = <&pio 7 9 0>;
+	};
 };