[E60][DTS] Add 27Mhz oscillator and fixed regulators

arch/arm/dts/seco-rk3588-e60.dts

@@ -16,4 +16,78 @@
 / {
 	model      = "Rockchip RK3588 SECO Board E60 COMe";
 	compatible = "rockchip,seco-rk3588-e60", "rockchip,rk3588";
+
+	ref27M: ref27M {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <27000000>;
+	};
+
+	P12v_main: P12v_main {
+		compatible = "regulator-fixed";
+		regulator-name = "+12v_main";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <12000000>;
+		regulator-max-microvolt = <12000000>;
+	};
+
+	vcc12v_dcin: vcc12v-dcin {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc12v_dcin";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <12000000>;
+		regulator-max-microvolt = <12000000>;
+	};
+
+	vcc5v0_sys: vcc5v0-sys {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc5v0_sys";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		vin-supply = <&vcc12v_dcin>;
+	};
+
+	vcc_1v1_nldo_s3: vcc-1v1-nldo-s3 {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc_1v1_nldo_s3";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <1100000>;
+		regulator-max-microvolt = <1100000>;
+		vin-supply = <&vcc5v0_sys>;
+	};
+
+	vcc_3v3_sd_s0: vcc-3v3-sd-s0 {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc_3v3_sd_s0";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		vin-supply = <&vcc_3v3_s3>;
+	};
+
+	vcc_3v3_emmc_s0: vcc-3v3-emmc-s0 {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc_3v3_emmc_s0";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		vin-supply = <&vcc_3v3_s3>;
+	};
+
+	vcc_1v8_emmc_s0: vcc-1v8-emmc-s0 {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc_1v8_emmc_s0";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		vin-supply = <&vcc_1v8_s3>;
+	};
 };