diff --git a/Documentation/powerpc/dts-bindings/mmc-spi-slot.txt b/Documentation/powerpc/dts-bindings/mmc-spi-slot.txt
new file mode 100644
index 0000000..c39ac28
--- /dev/null
+++ b/Documentation/powerpc/dts-bindings/mmc-spi-slot.txt
@@ -0,0 +1,23 @@
+MMC/SD/SDIO slot directly connected to a SPI bus
+
+Required properties:
+- compatible : should be "mmc-spi-slot".
+- reg : should specify SPI address (chip-select number).
+- spi-max-frequency : maximum frequency for this device (Hz).
+- voltage-ranges : two cells are required, first cell specifies minimum
+  slot voltage (mV), second cell specifies maximum slot voltage (mV).
+  Several ranges could be specified.
+- gpios : (optional) may specify GPIOs in this order: Card-Detect GPIO,
+  Write-Protect GPIO.
+
+Example:
+
+	mmc-slot@0 {
+		compatible = "fsl,mpc8323rdb-mmc-slot",
+			     "mmc-spi-slot";
+		reg = <0>;
+		gpios = <&qe_pio_d 14 1
+			 &qe_pio_d 15 0>;
+		voltage-ranges = <3300 3300>;
+		spi-max-frequency = <50000000>;
+	};
diff --git a/drivers/of/base.c b/drivers/of/base.c
index cd17092..41c5dfd 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -446,6 +446,7 @@
 };
 static struct of_modalias_table of_modalias_table[] = {
 	{ "fsl,mcu-mpc8349emitx", "mcu-mpc8349emitx" },
+	{ "mmc-spi-slot", "mmc_spi" },
 };
 
 /**