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diff --git a/Documentation/devicetree/bindings/mmc/mxs-mmc.yaml b/Documentation/devicetree/bindings/mmc/mxs-mmc.yaml
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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mmc/mxs-mmc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale MXS MMC controller
+
+maintainers:
+  - Shawn Guo <shawnguo@kernel.org>
+
+description: |
+  The Freescale MXS Synchronous Serial Ports (SSP) can act as a MMC controller
+  to support MMC, SD, and SDIO types of memory cards.
+
+  This file documents differences between the core properties in mmc.txt
+  and the properties used by the mxsmmc driver.
+
+allOf:
+  - $ref: "mmc-controller.yaml"
+
+properties:
+  compatible:
+    enum:
+      - fsl,imx23-mmc
+      - fsl,imx28-mmc
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  dmas:
+    maxItems: 1
+
+  dma-names:
+    const: rx-tx
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - dmas
+  - dma-names
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    mmc@80010000 {
+        compatible = "fsl,imx28-mmc";
+        reg = <0x80010000 2000>;
+        interrupts = <96>;
+        dmas = <&dma_apbh 0>;
+        dma-names = "rx-tx";
+        bus-width = <8>;
+    };