arm64: dts: rockchip: Add Lunzn Fastrhino R66S

Lunzn Fastrhino R66S is a high-performance mini router.

Specification:
- Rockchip RK3568
- 1/2GB LPDDR4 RAM
- SD card slot
- 2x USB 3.0 Port
- 2x 2500 Base-T (PCIe, r8125b)
- 12v DC Jack
Signed-off-by: Tianling Shen <cnsztl@gmail.com>
Link: https://lore.kernel.org/r/20230506061108.17658-2-cnsztl@gmail.comSigned-off-by: Heiko Stuebner <heiko@sntech.de>

arch/arm64/boot/dts/rockchip/Makefile

@@ -85,6 +85,7 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3566-box-demo.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3566-lubancat-1.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-bpi-r2-pro.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-evb1-v10.dtb
+dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-fastrhino-r66s.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-lubancat-2.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-nanopi-r5c.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-nanopi-r5s.dtb

arch/arm64/boot/dts/rockchip/rk3568-fastrhino-r66s.dts

+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+
+#include "rk3568-fastrhino-r66s.dtsi"
+
+/ {
+	model = "Lunzn FastRhino R66S";
+	compatible = "lunzn,fastrhino-r66s", "rockchip,rk3568";
+
+	aliases {
+		mmc0 = &sdmmc0;
+	};
+};
+
+&sdmmc0 {
+	bus-width = <4>;
+	cap-mmc-highspeed;
+	cap-sd-highspeed;
+	disable-wp;
+	max-frequency = <150000000>;
+	no-sdio;
+	no-mmc;
+	pinctrl-names = "default";
+	pinctrl-0 = <&sdmmc0_bus4 &sdmmc0_clk &sdmmc0_cmd &sdmmc0_det>;
+	vmmc-supply = <&vcc3v3_sd>;
+	vqmmc-supply = <&vccio_sd>;
+	status = "okay";
+};