[SANTINO][DTS] Configure usdhc2, usdhc4, uart2

arch/arm/dts/seco-imx6qdl-santino.dtsi

@@ -11,11 +11,14 @@
 
 / {
 	aliases {
-
+		mmc0 = &usdhc4;
+		mmc1 = &usdhc2;
+		serial0 = &uart2;
 	};
 
 	chosen {
-		stdout-path = &uart1;
+		bootargs = "console=ttyLP2,115200 earlycon";
+		stdout-path = &uart2;
 	};
 
 	memory: memory {
@@ -186,10 +189,17 @@
 			>;
 		};
 
-		pinctrl_uart1: uart1grp {
+		pinctrl_uart2_rcts: uart2rctsgrp {
+			fsl,pins = <
+				MX6QDL_PAD_EIM_D28__UART2_CTS_B		0x1b0b1
+				MX6QDL_PAD_EIM_D29__UART2_RTS_B		0x1b0b1
+			>;
+		};
+
+		pinctrl_uart2_rxtx: uart2rxtxgrp {
 			fsl,pins = <
-				MX6QDL_PAD_CSI0_DAT10__UART1_TX_DATA	0x1b0b1
-				MX6QDL_PAD_CSI0_DAT11__UART1_RX_DATA	0x1b0b1
+				MX6QDL_PAD_SD3_DAT4__UART2_RX_DATA	0x1b0b1
+				MX6QDL_PAD_SD3_DAT5__UART2_TX_DATA	0x1b0b1
 			>;
 		};
 
@@ -201,23 +211,19 @@
 
 		pinctrl_usdhc2: usdhc2grp {
 			fsl,pins = <
-				MX6QDL_PAD_SD2_CMD__SD2_CMD		0x17059
-				MX6QDL_PAD_SD2_CLK__SD2_CLK		0x10059
-				MX6QDL_PAD_SD2_DAT0__SD2_DATA0		0x17059
-				MX6QDL_PAD_SD2_DAT1__SD2_DATA1		0x17059
-				MX6QDL_PAD_SD2_DAT2__SD2_DATA2		0x17059
-				MX6QDL_PAD_SD2_DAT3__SD2_DATA3		0x17059
-				MX6QDL_PAD_NANDF_D4__SD2_DATA4		0x17059
-				MX6QDL_PAD_NANDF_D5__SD2_DATA5		0x17059
-				MX6QDL_PAD_NANDF_D6__SD2_DATA6		0x17059
-				MX6QDL_PAD_NANDF_D7__SD2_DATA7		0x17059
+				MX6QDL_PAD_SD2_CMD__SD2_CMD			0x17069
+				MX6QDL_PAD_SD2_CLK__SD2_CLK			0x10038
+				MX6QDL_PAD_SD2_DAT0__SD2_DATA0		0x17069
+				MX6QDL_PAD_SD2_DAT1__SD2_DATA1		0x17069
+				MX6QDL_PAD_SD2_DAT2__SD2_DATA2		0x17069
+				MX6QDL_PAD_SD2_DAT3__SD2_DATA3		0x17069
 			>;
 		};
 
 		pinctrl_usdhc4: usdhc4grp {
 			fsl,pins = <
-				MX6QDL_PAD_SD4_CMD__SD4_CMD		0x17059
-				MX6QDL_PAD_SD4_CLK__SD4_CLK		0x10059
+				MX6QDL_PAD_SD4_CMD__SD4_CMD			0x17059
+				MX6QDL_PAD_SD4_CLK__SD4_CLK			0x10059
 				MX6QDL_PAD_SD4_DAT0__SD4_DATA0		0x17059
 				MX6QDL_PAD_SD4_DAT1__SD4_DATA1		0x17059
 				MX6QDL_PAD_SD4_DAT2__SD4_DATA2		0x17059
@@ -231,6 +237,13 @@
 	};
 };
 
+&uart2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart2_rxtx &pinctrl_uart2_rcts>;
+	uart-has-rtscts;
+	status = "okay";
+};
+
 &reg_arm {
        vin-supply = <&sw1a_reg>;
 };
@@ -271,18 +284,20 @@
 	fsl,tx-d-cal = <106>;
 };
 
+/* SD Card */
 &usdhc2 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_usdhc2>;
 	bus-width = <8>;
-	cd-gpios = <&gpio2 2 GPIO_ACTIVE_LOW>;
-	wp-gpios = <&gpio2 3 GPIO_ACTIVE_HIGH>;
+	cd-gpios = <&gpio1 4 GPIO_ACTIVE_LOW>;
+	wp-gpios = <&gpio1 2 GPIO_ACTIVE_HIGH>;
 	no-1-8-v;
 	keep-power-in-suspend;
 	enable-sdio-wakeup;
 	status = "okay";
 };
 
+/* eMMC */
 &usdhc4 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_usdhc4>;