ARM: dts: sun9i: a80-optimus: Enable AP6330 WiFi

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@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>

diff --git a/arch/arm/boot/dts/sun9i-a80-optimus.dts b/arch/arm/boot/dts/sun9i-a80-optimus.dts
index ceb6ef1..7e036b2 100644 (file)
--- a/arch/arm/boot/dts/sun9i-a80-optimus.dts
+++ b/arch/arm/boot/dts/sun9i-a80-optimus.dts
@@ -105,6 +105,14 @@
                enable-active-high;
                gpio = <&pio 7 5 GPIO_ACTIVE_HIGH>; /* PH5 */
        };
+
+       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 */
+       };
 };
 
 &ehci0 {
@@ -130,6 +138,21 @@
        status = "okay";
 };
 
+&mmc1 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&mmc1_pins>, <&wifi_en_pin_optimus>;
+       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>;
@@ -199,6 +222,13 @@
                allwinner,drive = <SUN4I_PINCTRL_10_MA>;
                allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
        };
+
+       wifi_en_pin_optimus: 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 {