arm64: dts: allwinner: h700: Add RG35XX-Plus DTS

The RG35XX-Plus adds a RTL8221CS SDIO Wifi/BT chip to the RG35XX (2024).

Enabled in this DTS:
- WiFi
- Bluetooth
- Supporting power sequence and GPIOs

Signed-off-by: Ryan Walklin <ryan@testtoast.com>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://lore.kernel.org/r/20240427110225.727472-7-ryan@testtoast.com
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>

Author: tokyovigilante

arch/arm64/boot/dts/allwinner/Makefile

@@ -49,3 +49,4 @@ dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h618-orangepi-zero2w.dtb
 dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h618-orangepi-zero3.dtb
 dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h618-transpeed-8k618-t.dtb
 dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h700-anbernic-rg35xx-2024.dtb
+dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h700-anbernic-rg35xx-plus.dtb

arch/arm64/boot/dts/allwinner/sun50i-h700-anbernic-rg35xx-plus.dts

@@ -0,0 +1,53 @@
+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+/*
+ * Copyright (C) 2024 Ryan Walklin <ryan@testtoast.com>.
+ */
+
+#include "sun50i-h700-anbernic-rg35xx-2024.dts"
+
+/ {
+	model = "Anbernic RG35XX Plus";
+	compatible = "anbernic,rg35xx-plus", "allwinner,sun50i-h700";
+
+	wifi_pwrseq: pwrseq {
+		compatible = "mmc-pwrseq-simple";
+		clocks = <&rtc CLK_OSC32K_FANOUT>;
+		clock-names = "ext_clock";
+		pinctrl-0 = <&x32clk_fanout_pin>;
+		pinctrl-names = "default";
+		post-power-on-delay-ms = <200>;
+		reset-gpios = <&pio 6 18 GPIO_ACTIVE_LOW>; /* PG18 */
+	};
+};
+
+/* SDIO WiFi RTL8821CS */
+&mmc1 {
+	vmmc-supply = <&reg_cldo4>;
+	vqmmc-supply = <&reg_aldo4>;
+	mmc-pwrseq = <&wifi_pwrseq>;
+	bus-width = <4>;
+	non-removable;
+	status = "okay";
+
+	sdio_wifi: wifi@1 {
+		reg = <1>;
+		interrupt-parent = <&pio>;
+		interrupts = <6 15 IRQ_TYPE_LEVEL_LOW>; /* PG15 */
+		interrupt-names = "host-wake";
+	};
+};
+
+/* Bluetooth RTL8821CS */
+&uart1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart1_pins>, <&uart1_rts_cts_pins>;
+	uart-has-rtscts;
+	status = "okay";
+
+	bluetooth {
+		compatible = "realtek,rtl8821cs-bt", "realtek,rtl8723bs-bt";
+		device-wake-gpios = <&pio 6 17 GPIO_ACTIVE_HIGH>; /* PG17 */
+		enable-gpios = <&pio 6 19 GPIO_ACTIVE_HIGH>; /* PG19 */
+		host-wake-gpios = <&pio 6 16 GPIO_ACTIVE_HIGH>; /* PG16 */
+	};
+};