From: Nickey Yang <nickey.yang@rock-chips.com>
Date: Thu, 4 Aug 2016 08:13:26 +0000 (+0800)
Subject: ARM: dts: rk3288: support AP6212 wifi for Fennec
X-Git-Tag: firefly_0821_release~1987
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=34860326919b0ac41b98a1ed9da5d3e207141d02;p=firefly-linux-kernel-4.4.55.git

ARM: dts: rk3288: support AP6212 wifi for Fennec

This patch add and enable AP6212 wifi node for rk3288-fennec

Signed-off-by: Nickey Yang <nickey.yang@rock-chips.com>
Change-Id: I0bc77758869665992595c46471fc9bc7f9dff12c
---

diff --git a/arch/arm/boot/dts/rk3288-fennec.dts b/arch/arm/boot/dts/rk3288-fennec.dts
index a6e8ec82250c..610304c45dec 100644
--- a/arch/arm/boot/dts/rk3288-fennec.dts
+++ b/arch/arm/boot/dts/rk3288-fennec.dts
@@ -40,6 +40,7 @@
 
 /dts-v1/;
 
+#include <dt-bindings/clock/rockchip,rk808.h>
 #include "rk3288.dtsi"
 
 / {
@@ -58,6 +59,28 @@
 		clock-output-names = "ext_gmac";
 	};
 
+	io-domains {
+		compatible = "rockchip,rk3288-io-voltage-domain";
+		rockchip,grf = <&grf>;
+		wifi-supply = <&vcc_wl>;
+	};
+
+	sdio_pwrseq: sdio-pwrseq {
+		compatible = "mmc-pwrseq-simple";
+		clocks = <&rk808 RK808_CLKOUT1>;
+		clock-names = "ext_clock";
+		pinctrl-names = "default";
+		pinctrl-0 = <&wifi_enable_h>;
+
+		/*
+		 * On the module itself this is one of these (depending
+		 * on the actual card populated):
+		 * - SDIO_RESET_L_WL_REG_ON
+		 * - PDN (power down when low)
+		 */
+		reset-gpios = <&gpio4 28 GPIO_ACTIVE_LOW>;
+	};
+
 	sound {
 		compatible = "simple-audio-card";
 		simple-audio-card,format = "i2s";
@@ -103,6 +126,15 @@
 		regulator-max-microvolt = <5000000>;
 		regulator-always-on;
 	};
+
+	wireless-wlan {
+		compatible = "wlan-platdata";
+		rockchip,grf = <&grf>;
+		wifi_chip_type = "ap6212";
+		sdio_vref = <1800>;
+		WIFI,host_wake_irq = <&gpio4 30 GPIO_ACTIVE_HIGH>;
+		status = "okay";
+	};
 };
 
 &cpu0 {
@@ -363,6 +395,24 @@
 	status = "okay";
 };
 
+&sdio0 {
+	status = "okay";
+	clock-frequency = <50000000>;
+	clock-freq-min-max = <200000 50000000>;
+	bus-width = <4>;
+	cap-sd-highspeed;
+	cap-sdio-irq;
+	disable-wp;
+	keep-power-in-suspend;
+	mmc-pwrseq = <&sdio_pwrseq>;
+	non-removable;
+	num-slots = <1>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&sdio0_bus4 &sdio0_cmd &sdio0_clk>;
+	sd-uhs-sdr104;
+	supports-sdio;
+};
+
 &pinctrl {
 	pcfg_output_high: pcfg-output-high {
 		output-high;
@@ -401,6 +451,12 @@
 		};
 	};
 
+	sdio-pwrseq {
+		wifi_enable_h: wifi-enable-h {
+			rockchip,pins = <4 28 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+
 	sdmmc {
 		sdmmc_bus4: sdmmc-bus4 {
 			rockchip,pins = <6 16 RK_FUNC_1 &pcfg_pull_up_drv_8ma>,