Add Orange Pi 5 Ultra WiFi/BT support and tart_defconfig

- Enable SDIO WiFi (brcmfmac) via mmc@fe2d0000 with mmc-pwrseq
- Enable Bluetooth (brcm,bcm43438-bt) via uart7 serdev node
- Create tart_defconfig based on android_orangepi5_defconfig
- PIN mappings from jimmyhon/linux max-wifi branch (GPIO2 PC5 WIFI_REG_ON,
  GPIO4 PC4 BT_REG_ON, SDIO sdiom0_pins, UART7 uart7m0_xfer + ctsn/rtsn)

arch/arm64/boot/dts/rockchip/rk3588-orangepi-5-compact.dtsi

@@ -1,4 +1,5 @@
 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+// Copyright (C) 2026 Brendan Szymanski <hello@bscubed.dev>
 
 /dts-v1/;
 
@@ -7,6 +8,17 @@
 #include "rk3588-orangepi-5.dtsi"
 
 / {
+	sdio_pwrseq: sdio-pwrseq {
+		compatible = "mmc-pwrseq-simple";
+		clock-names = "ext_clock";
+		clocks = <&hym8563>;
+		pinctrl-0 = <&wifi_enable_h>;
+		pinctrl-names = "default";
+		post-power-on-delay-ms = <200>;
+		power-off-delay-us = <5000000>;
+		reset-gpios = <&gpio2 RK_PC5 GPIO_ACTIVE_LOW>;
+	};
+
 	vcc5v0_usb30_otg: vcc5v0-usb30-otg-regulator {
 		compatible = "regulator-fixed";
 		enable-active-high;
@@ -87,6 +99,32 @@
 			rockchip,pins = <3 RK_PD5 RK_FUNC_GPIO &pcfg_pull_none>;
 		};
 	};
+
+	wireless-bluetooth {
+		bt_reg_on: bt-reg-on {
+			rockchip,pins = <4 RK_PC4 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+
+		bt_wake_host: bt-wake-host {
+			rockchip,pins = <0 RK_PA0 RK_FUNC_GPIO &pcfg_pull_down>;
+		};
+
+		host_wake_bt: host-wake-bt {
+			rockchip,pins = <4 RK_PC5 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+
+	wifi {
+		wifi_enable_h: wifi-enable-h {
+			rockchip,pins =
+				<2 RK_PC5 RK_FUNC_GPIO &pcfg_pull_up>;
+		};
+
+		wifi_host_wake_irq: wifi-host-wake-irq {
+			rockchip,pins =
+				<0 RK_PB0 RK_FUNC_GPIO &pcfg_pull_down>;
+		};
+	};
 };
 
 &pwm4 {
@@ -141,3 +179,56 @@
 	pinctrl-names = "default";
 	pinctrl-0 = <&usb_host_pwren>;
 };
+
+&sdio {
+	#address-cells = <1>;
+	bus-width = <4>;
+	cap-sd-highspeed;
+	cap-sdio-irq;
+	disable-wp;
+	keep-power-in-suspend;
+	max-frequency = <150000000>;
+	mmc-pwrseq = <&sdio_pwrseq>;
+	non-removable;
+	no-mmc;
+	no-sd;
+	pinctrl-names = "default";
+	pinctrl-0 = <&sdiom0_pins>;
+	sd-uhs-sdr104;
+	#size-cells = <0>;
+	vmmc-supply = <&vcc_3v3_s3>;
+	vqmmc-supply = <&vcc_1v8_s3>;
+	status = "okay";
+
+	brcmf: wifi@1 {
+		compatible = "brcm,bcm4329-fmac";
+		reg = <1>;
+		interrupt-parent = <&gpio0>;
+		interrupts = <RK_PB0 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-names = "host-wake";
+		pinctrl-0 = <&wifi_host_wake_irq>;
+		pinctrl-names = "default";
+	};
+};
+
+&uart7 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart7m0_xfer &uart7m0_ctsn &uart7m0_rtsn>;
+	uart-has-rtscts;
+	status = "okay";
+
+	bluetooth {
+		compatible = "brcm,bcm43438-bt";
+		clocks = <&hym8563>;
+		clock-names = "lpo";
+		device-wakeup-gpios = <&gpio4 RK_PC5 GPIO_ACTIVE_HIGH>;
+		interrupt-parent = <&gpio0>;
+		interrupts = <RK_PA0 IRQ_TYPE_EDGE_FALLING>;
+		interrupt-names = "host-wakeup";
+		pinctrl-names = "default";
+		pinctrl-0 = <&bt_reg_on>, <&host_wake_bt>, <&bt_wake_host>;
+		shutdown-gpios = <&gpio4 RK_PC4 GPIO_ACTIVE_HIGH>;
+		vbat-supply = <&vcc_3v3_s3>;
+		vddio-supply = <&vcc_1v8_s3>;
+	};
+};