ARM: dts: imx6sll-evk: add eMMC node support

On imx6sll-evk board, eMMC is connect on the usdhc2.
Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/imx6sll-evk.dts

@@ -109,6 +109,14 @@ reg_sd1_vmmc: regulator-sd1-vmmc {
 		enable-active-high;
 	};
 
+	reg_sd2_vmmc: regulator-sd2-vmmc {
+		compatible = "regulator-fixed";
+		regulator-name = "eMMC-VCCQ";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		regulator-boot-on;
+	};
+
 	reg_sd3_vmmc: regulator-sd3-vmmc {
 		compatible = "regulator-fixed";
 		pinctrl-names = "default";
@@ -343,6 +351,17 @@ &usdhc1 {
 	status = "okay";
 };
 
+&usdhc2 {
+	pinctrl-names = "default", "state_100mhz", "state_200mhz";
+	pinctrl-0 = <&pinctrl_usdhc2>;
+	pinctrl-1 = <&pinctrl_usdhc2_100mhz>;
+	pinctrl-2 = <&pinctrl_usdhc2_200mhz>;
+	bus-width = <8>;
+	non-removable;
+	vqmmc-supply = <&reg_sd2_vmmc>;
+	status = "okay";
+};
+
 &usbotg1 {
 	vbus-supply = <&reg_usb_otg1_vbus>;
 	pinctrl-names = "default";
@@ -466,6 +485,54 @@ MX6SLL_PAD_SD1_DATA3__SD1_DATA3	0x170f9
 		>;
 	};
 
+	pinctrl_usdhc2: usdhc2grp {
+		fsl,pins = <
+			MX6SLL_PAD_SD2_CMD__SD2_CMD		0x17059
+			MX6SLL_PAD_SD2_CLK__SD2_CLK		0x13059
+			MX6SLL_PAD_SD2_DATA0__SD2_DATA0		0x17059
+			MX6SLL_PAD_SD2_DATA1__SD2_DATA1		0x17059
+			MX6SLL_PAD_SD2_DATA2__SD2_DATA2		0x17059
+			MX6SLL_PAD_SD2_DATA3__SD2_DATA3		0x17059
+			MX6SLL_PAD_SD2_DATA4__SD2_DATA4		0x17059
+			MX6SLL_PAD_SD2_DATA5__SD2_DATA5		0x17059
+			MX6SLL_PAD_SD2_DATA6__SD2_DATA6		0x17059
+			MX6SLL_PAD_SD2_DATA7__SD2_DATA7		0x17059
+			MX6SLL_PAD_GPIO4_IO21__SD2_STROBE	0x13059
+		>;
+	};
+
+	pinctrl_usdhc2_100mhz: usdhc2grp-100mhz {
+		fsl,pins = <
+			MX6SLL_PAD_SD2_CMD__SD2_CMD		0x170b9
+			MX6SLL_PAD_SD2_CLK__SD2_CLK		0x130b9
+			MX6SLL_PAD_SD2_DATA0__SD2_DATA0		0x170b9
+			MX6SLL_PAD_SD2_DATA1__SD2_DATA1		0x170b9
+			MX6SLL_PAD_SD2_DATA2__SD2_DATA2		0x170b9
+			MX6SLL_PAD_SD2_DATA3__SD2_DATA3		0x170b9
+			MX6SLL_PAD_SD2_DATA4__SD2_DATA4		0x170b9
+			MX6SLL_PAD_SD2_DATA5__SD2_DATA5		0x170b9
+			MX6SLL_PAD_SD2_DATA6__SD2_DATA6		0x170b9
+			MX6SLL_PAD_SD2_DATA7__SD2_DATA7		0x170b9
+			MX6SLL_PAD_GPIO4_IO21__SD2_STROBE	0x130b9
+		>;
+	};
+
+	pinctrl_usdhc2_200mhz: usdhc2grp-200mhz {
+		fsl,pins = <
+			MX6SLL_PAD_SD2_CMD__SD2_CMD		0x170f9
+			MX6SLL_PAD_SD2_CLK__SD2_CLK		0x130f9
+			MX6SLL_PAD_SD2_DATA0__SD2_DATA0		0x170f9
+			MX6SLL_PAD_SD2_DATA1__SD2_DATA1		0x170f9
+			MX6SLL_PAD_SD2_DATA2__SD2_DATA2		0x170f9
+			MX6SLL_PAD_SD2_DATA3__SD2_DATA3		0x170f9
+			MX6SLL_PAD_SD2_DATA4__SD2_DATA4		0x170f9
+			MX6SLL_PAD_SD2_DATA5__SD2_DATA5		0x170f9
+			MX6SLL_PAD_SD2_DATA6__SD2_DATA6		0x170f9
+			MX6SLL_PAD_SD2_DATA7__SD2_DATA7		0x170f9
+			MX6SLL_PAD_GPIO4_IO21__SD2_STROBE	0x130f9
+		>;
+	};
+
 	pinctrl_usbotg1: usbotg1grp {
 		fsl,pins = <
 			MX6SLL_PAD_EPDC_PWR_COM__USB_OTG1_ID 0x17059