Index: linux-4.14.51/arch/arm/boot/dts/mt7623n-bananapi-bpi-r2.dts
===================================================================
--- linux-4.14.51.orig/arch/arm/boot/dts/mt7623n-bananapi-bpi-r2.dts
+++ linux-4.14.51/arch/arm/boot/dts/mt7623n-bananapi-bpi-r2.dts
@@ -266,6 +266,28 @@
 	vqmmc-supply = <&mt6323_vio18_reg>;
 };
 
+&pcie {
+       pinctrl-names = "default";
+       pinctrl-0 = <&pcie_default>;
+       status = "okay";
+
+       pcie@0,0 {
+               status = "okay";
+       };
+
+       pcie@1,0 {
+               status = "okay";
+       };
+};
+
+&pcie0_phy {
+       status = "okay";
+};
+
+&pcie1_phy {
+       status = "okay";
+};
+
 &pio {
 	cir_pins_a:cir@0 {
 		pins_cir {
@@ -433,6 +455,14 @@
 		};
 	};
 
+	pcie_default: pcie_pin_default {
+		pins_cmd_dat {
+			pinmux = <MT7623_PIN_208_AUD_EXT_CK1_FUNC_PCIE0_PERST_N>,
+				 <MT7623_PIN_209_AUD_EXT_CK2_FUNC_PCIE1_PERST_N>;
+			bias-disable;
+		};
+	};
+
 	pwm_pins_a: pwm@0 {
 		pins_pwm {
 			pinmux = <MT7623_PIN_203_PWM0_FUNC_PWM0>,