[PATCH 1/2] arm64: dts: a64-olinuxino: Enable RTL8723BS WiFi

From: Jagan Teki
Date: Fri Dec 01 2017 - 04:11:25 EST


Enable RTL8723BS WiFi chip on a64-olinuxino board:
- WiFi SDIO interface is connected to MMC1
- WiFi REG_ON pin connected to gpio PL2: attach to mmc-pwrseq
- WiFi HOST_WAKE pin connected to gpio PL3

To make rtl8723bs chip to work build it as module to and run
CONFIG_RTL8723BS=m

Signed-off-by: Jagan Teki <jagan@xxxxxxxxxxxxxxxxxxxx>
---
.../boot/dts/allwinner/sun50i-a64-olinuxino.dts | 23 ++++++++++++++++++++++
1 file changed, 23 insertions(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-olinuxino.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-olinuxino.dts
index 338e7861..8807664 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64-olinuxino.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-olinuxino.dts
@@ -57,6 +57,11 @@
chosen {
stdout-path = "serial0:115200n8";
};
+
+ wifi_pwrseq: wifi_pwrseq {
+ compatible = "mmc-pwrseq-simple";
+ reset-gpios = <&r_pio 0 2 GPIO_ACTIVE_LOW>; /* PL2 */
+ };
};

&mmc0 {
@@ -70,6 +75,24 @@
status = "okay";
};

+&mmc1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&mmc1_pins>;
+ vmmc-supply = <&reg_aldo2>;
+ vqmmc-supply = <&reg_dldo4>;
+ mmc-pwrseq = <&wifi_pwrseq>;
+ bus-width = <4>;
+ non-removable;
+ status = "okay";
+
+ rtl8723bs: wifi@1 {
+ reg = <1>;
+ interrupt-parent = <&r_pio>;
+ interrupts = <0 3 IRQ_TYPE_LEVEL_LOW>; /* PL3 */
+ interrupt-names = "host-wake";
+ };
+};
+
&r_rsb {
status = "okay";

--
2.7.4