ARM: dts: imx6qdl-sabresd: Add PCIe support

Add support for the PCI express bus available on MX6 SabreSDP.
Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>

arch/arm/boot/dts/imx6qdl-sabresd.dtsi

@@ -389,6 +389,13 @@ MX6QDL_PAD_GPIO_6__I2C3_SDA		0x4001b8b1
 			>;
 		};
 
+		pinctrl_pcie: pciegrp {
+			fsl,pins = <
+				MX6QDL_PAD_EIM_D19__GPIO3_IO19	0x80000000
+				MX6QDL_PAD_GPIO_17__GPIO7_IO12	0x80000000
+			>;
+		};
+
 		pinctrl_pwm1: pwm1grp {
 			fsl,pins = <
 				MX6QDL_PAD_SD1_DAT3__PWM1_OUT		0x1b0b1
@@ -473,6 +480,14 @@ timing0: hsd100pxn1 {
 	};
 };
 
+&pcie {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_pcie>;
+	power-on-gpio = <&gpio3 19 0>;
+	reset-gpio = <&gpio7 12 0>;
+	status = "okay";
+};
+
 &pwm1 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_pwm1>;