[PATCH 3/3] ARM: dts: sun9i: cubieboard4: Enable AP6330 WiFi

From: Chen-Yu Tsai
Date: Fri Oct 28 2016 - 06:12:36 EST


The board has a Ampak AP6330 WiFi/BT/FM module. Inside it is a Broadcom
BCM4330 WiFi/BT/FM combo IC. The WiFi portion is connected to mmc1, with
the enabling pin connected to PL2. The AC100 RTC provides a low power
clock signal.

Signed-off-by: Chen-Yu Tsai <wens@xxxxxxxx>
---
arch/arm/boot/dts/sun9i-a80-cubieboard4.dts | 32 +++++++++++++++++++++++++++++
1 file changed, 32 insertions(+)

diff --git a/arch/arm/boot/dts/sun9i-a80-cubieboard4.dts b/arch/arm/boot/dts/sun9i-a80-cubieboard4.dts
index 439847acd41e..67b02fe7f11c 100644
--- a/arch/arm/boot/dts/sun9i-a80-cubieboard4.dts
+++ b/arch/arm/boot/dts/sun9i-a80-cubieboard4.dts
@@ -76,6 +76,14 @@
gpios = <&pio 7 6 GPIO_ACTIVE_HIGH>; /* PH6 */
};
};
+
+ wifi_pwrseq: wifi_pwrseq {
+ compatible = "mmc-pwrseq-simple";
+ clocks = <&ac100_rtc 1>;
+ clock-names = "ext_clock";
+ /* enables internal regulator and de-asserts reset */
+ reset-gpios = <&r_pio 0 2 GPIO_ACTIVE_LOW>; /* PL2 WL-PMU-EN */
+ };
};

&mmc0 {
@@ -88,6 +96,21 @@
status = "okay";
};

+&mmc1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&mmc1_pins>, <&wifi_en_pin_cubieboard4>;
+ vmmc-supply = <&reg_dldo1>;
+ vqmmc-supply = <&reg_cldo3>;
+ mmc-pwrseq = <&wifi_pwrseq>;
+ bus-width = <4>;
+ non-removable;
+ status = "okay";
+};
+
+&mmc1_pins {
+ allwinner,pull = <SUN4I_PINCTRL_PULL_UP>;
+};
+
&mmc2 {
pinctrl-names = "default";
pinctrl-0 = <&mmc2_8bit_pins>;
@@ -128,6 +151,15 @@
status = "okay";
};

+&r_pio {
+ wifi_en_pin_cubieboard4: wifi_en_pin@0 {
+ allwinner,pins = "PL2";
+ allwinner,function = "gpio_out";
+ allwinner,drive = <SUN4I_PINCTRL_10_MA>;
+ allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
+ };
+};
+
&r_rsb {
status = "okay";

--
2.9.3