[D18] enable spi

* enable RTC PCF2123
* enable ecspi/flexspi eeprom on B79 carrier (CN68, CN69, CN43)

arch/arm64/boot/dts/seco/seco-imx8mp-d18.dts

@@ -130,11 +130,39 @@
 &ecspi2 {
 	#address-cells = <1>;
 	#size-cells = <0>;
-	fsl,spi-num-chipselects = <1>;
-	pinctrl-names = "default";
-	pinctrl-0 = <&pinctrl_ecspi2 &pinctrl_ecspi2_cs>;
-	cs-gpios = <&gpio5 13 GPIO_ACTIVE_LOW>;
+	fsl,spi-num-chipselects = <3>;
+	pinctrl-names = "default","default-gpio";
+	pinctrl-0 = <&pinctrl_ecspi2>, <&pinctrl_ecspi2_cs>;
+	cs-gpios = <&gpio3 19 GPIO_ACTIVE_LOW>, <&gpio5 13 GPIO_ACTIVE_LOW>, <&gpio3 20 GPIO_ACTIVE_LOW>;
 	status = "okay";
+
+	rtc: pcf2123@0 {
+		compatible = "nxp,rtc-pcf2123";
+		reg = <0>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		spi-max-frequency = <1000000>;
+		spi-cs-high;
+		status = "okay";
+	};
+
+	flash1: flash-mx1@1 {
+		compatible = "macronix,mx25u6435f", "jedec,spi-nor";
+		reg = <1>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		spi-max-frequency = <25000000>;
+		status = "okay";
+	};
+
+	flash2: flash-mx2@2 {
+		compatible = "macronix,mx25u6435f", "jedec,spi-nor";
+		reg = <2>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		spi-max-frequency = <25000000>;
+		status = "okay";
+	};
 };
 
 &eqos {
@@ -191,6 +219,17 @@
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_flexspi0>;
 	status = "okay";
+
+	flash_qspi: flash-qspi@0 {
+		compatible = "macronix,mx25u6435f", "jedec,spi-nor";
+		reg = <0>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		spi-max-frequency = <25000000>;
+		spi-rx-bus-width = <4>;
+		spi-tx-bus-width = <4>;
+		status = "okay";
+	};
 };
 
 &flexcan1 {
@@ -687,6 +726,8 @@
 
 	pinctrl_ecspi2_cs: ecspi2cs {
 		fsl,pins = <
+			MX8MP_IOMUXC_SAI5_RXFS__GPIO3_IO19		0x40000
+			MX8MP_IOMUXC_SAI5_RXC__GPIO3_IO20		0x40000
 			MX8MP_IOMUXC_ECSPI2_SS0__GPIO5_IO13		0x40000
 		>;
 	};
@@ -748,7 +789,8 @@
 	pinctrl_flexspi0: flexspi0grp {
 		fsl,pins = <
 			MX8MP_IOMUXC_NAND_ALE__FLEXSPI_A_SCLK           0x1c2
-			MX8MP_IOMUXC_NAND_CE0_B__FLEXSPI_A_SS0_B        0x82
+			MX8MP_IOMUXC_NAND_READY_B__GPIO3_IO16           0x82   /* QSPIA_SS1# */
+			MX8MP_IOMUXC_NAND_CE0_B__FLEXSPI_A_SS0_B        0x82   /* QSPIA_SS0#*/
 			MX8MP_IOMUXC_NAND_DATA00__FLEXSPI_A_DATA00      0x82
 			MX8MP_IOMUXC_NAND_DATA01__FLEXSPI_A_DATA01      0x82
 			MX8MP_IOMUXC_NAND_DATA02__FLEXSPI_A_DATA02      0x82