From: Chen-Yu Tsai <wens@csie.org>
Date: Wed, 18 Oct 2017 08:31:38 +0000 (+0800)
Subject: ARM: dts: sun8i: a83t: bananapi-m3: Enable AP6212 WiFi on mmc1
X-Git-Tag: v4.19~2159^2~6^2~2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=337cce7ec3caadbbc8098a19446d9195da62335b;p=platform%2Fkernel%2Flinux-rpi.git

ARM: dts: sun8i: a83t: bananapi-m3: Enable AP6212 WiFi on mmc1

The WiFi side of the AP6212 WiFi/BT combo module is connected to
mmc1. There are also GPIOs for enable and interrupts. An external
clock from the AC100 RTC is also used.

Enable WiFi on this board by enabling mmc1 and adding the power
sequencing clocks and GPIO, as well as the chip's interrupt line.

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/sun8i-a83t-bananapi-m3.dts b/arch/arm/boot/dts/sun8i-a83t-bananapi-m3.dts
index 78036b2..c606af3 100644
--- a/arch/arm/boot/dts/sun8i-a83t-bananapi-m3.dts
+++ b/arch/arm/boot/dts/sun8i-a83t-bananapi-m3.dts
@@ -68,6 +68,17 @@
 		enable-active-high;
 		gpio = <&pio 3 24 GPIO_ACTIVE_HIGH>; /* PD24 */
 	};
+
+	wifi_pwrseq: wifi_pwrseq {
+		compatible = "mmc-pwrseq-simple";
+		clocks = <&ac100_rtc 1>;
+		clock-names = "ext_clock";
+		/* The WiFi low power clock must be 32768 Hz */
+		assigned-clocks = <&ac100_rtc 1>;
+		assigned-clock-rates = <32768>;
+		/* enables internal regulator and de-asserts reset */
+		reset-gpios = <&r_pio 0 2 GPIO_ACTIVE_LOW>; /* PL2 WL-PMU-EN */
+	};
 };
 
 &ehci0 {
@@ -87,6 +98,23 @@
 	status = "okay";
 };
 
+&mmc1 {
+	vmmc-supply = <&reg_dldo1>;
+	vqmmc-supply = <&reg_dldo1>;
+	mmc-pwrseq = <&wifi_pwrseq>;
+	bus-width = <4>;
+	non-removable;
+	status = "okay";
+
+	brcmf: wifi@1 {
+		reg = <1>;
+		compatible = "brcm,bcm4329-fmac";
+		interrupt-parent = <&r_pio>;
+		interrupts = <0 3 IRQ_TYPE_LEVEL_LOW>;
+		interrupt-names = "host-wake";
+	};
+};
+
 &mmc2 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&mmc2_8bit_emmc_pins>;