diff --git a/arch/arm/dts/sun8i-h3-orangepi-pc.dts b/arch/arm/dts/sun8i-h3-orangepi-pc.dts
index 30ccca0..6475652 100644
--- a/arch/arm/dts/sun8i-h3-orangepi-pc.dts
+++ b/arch/arm/dts/sun8i-h3-orangepi-pc.dts
@@ -126,6 +126,15 @@
 	status = "okay";
 };
 
+&mmc2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&mmc2_8bit_pins>;
+	vmmc-supply = <&reg_vcc3v0>;
+	bus-width = <8>;
+	non-removable;
+	status = "okay";
+};
+
 &ohci1 {
 	status = "okay";
 };
diff --git a/arch/arm/dts/sun8i-h3.dtsi b/arch/arm/dts/sun8i-h3.dtsi
index c2f63c5..4a4926b 100644
--- a/arch/arm/dts/sun8i-h3.dtsi
+++ b/arch/arm/dts/sun8i-h3.dtsi
@@ -530,6 +530,16 @@
 				allwinner,drive = <SUN4I_PINCTRL_30_MA>;
 				allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
 			};
+
+			mmc2_8bit_pins: mmc2_8bit {
+				allwinner,pins = "PC5", "PC6", "PC8",
+						 "PC9", "PC10", "PC11",
+						 "PC12", "PC13", "PC14",
+						 "PC15", "PC16";
+				allwinner,function = "mmc2";
+				allwinner,drive = <SUN4I_PINCTRL_30_MA>;
+				allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
+			};
 		};
 
 		ahb_rst: reset@01c202c0 {
diff --git a/configs/orangepi_pc_defconfig b/configs/orangepi_pc_defconfig
index 7bade8f..3ca75be 100644
--- a/configs/orangepi_pc_defconfig
+++ b/configs/orangepi_pc_defconfig
@@ -13,6 +13,8 @@ CONFIG_CMD_BOOTZ=y
 # CONFIG_CMD_IMLS is not set
 # CONFIG_CMD_FLASH is not set
 CONFIG_CMD_MMC=y
+CONFIG_MMC0_CD_PIN="PF6"
+CONFIG_MMC_SUNXI_SLOT_EXTRA=2
 CONFIG_CMD_I2C=y
 # CONFIG_CMD_FPGA is not set
 CONFIG_CMD_DHCP=y