+
+/* Wireless SDIO Module */
+&sd_emmc_a {
+	status = "disabled";
+	pinctrl-0 = <&sdio_pins>;
+	pinctrl-1 = <&sdio_clk_gate_pins>;
+	pinctrl-names = "default", "clk-gate";
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	bus-width = <4>;
+	cap-sd-highspeed;
+	max-frequency = <50000000>;
+
+	non-removable;
+	disable-wp;
+
+	/* WiFi firmware requires power to be kept while in suspend */
+	keep-power-in-suspend;
+
+	mmc-pwrseq = <&sdio_pwrseq>;
+
+	vmmc-supply = <&vddao_3v3>;
+	vqmmc-supply = <&vddio_boot>;
+};
+

  um it seem the sdio wifi module/chip connected to sd_emmc_a it is 
actually connected to sd_emmc_b

i tried to enable sd_emmc_a but nothing showed up in the kernel thus i 
tried to enabled sdd_emmc_b and there are a sdio device showed in the 
kernel (sdio:c07v8888d8888)

<https://matrix.to/#/!bDDAcbaDDYYwsVgelj:pixie.town/$YUSQIZ-pF22j9-ElrCst8XCUg1pac7CzWbUinNZL9HI?via=pixie.town&via=matrix.org&via=dissonant.dev>

acc to https://paste.coreelec.org/CoolersHurry 
<https://paste.coreelec.org/CoolersHurry> it seem it is amlogic w1 chip ?

(well on my board it is amlogic w1. there are some variant that use 
other wifi chip )