diff --git a/Documentation/devicetree/bindings/memory-controllers/ingenic,nemc-peripherals.yaml b/Documentation/devicetree/bindings/memory-controllers/ingenic,nemc-peripherals.yaml
new file mode 100644
index 000000000000..b8ed52a44d57
--- /dev/null
+++ b/Documentation/devicetree/bindings/memory-controllers/ingenic,nemc-peripherals.yaml
@@ -0,0 +1,46 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/memory-controllers/ingenic,nemc-peripherals.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Ingenic SoCs NAND / External Memory Controller (NEMC) devicetree bindings
+
+maintainers:
+  - Paul Cercueil <paul@crapouillou.net>
+
+properties:
+  reg:
+    minItems: 1
+    maxItems: 255
+
+  ingenic,nemc-bus-width:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    enum: [8, 16]
+    description: Specifies the bus width in bits.
+
+  ingenic,nemc-tAS:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: Address setup time in nanoseconds.
+
+  ingenic,nemc-tAH:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: Address hold time in nanoseconds.
+
+  ingenic,nemc-tBP:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: Burst pitch time in nanoseconds.
+
+  ingenic,nemc-tAW:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: Address wait time in nanoseconds.
+
+  ingenic,nemc-tSTRV:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: Static memory recovery time in nanoseconds.
+
+required:
+  - reg
+
+additionalProperties: true
+...
diff --git a/Documentation/devicetree/bindings/memory-controllers/ingenic,nemc.yaml b/Documentation/devicetree/bindings/memory-controllers/ingenic,nemc.yaml
index 24f9e1982028..dd13a5106d6c 100644
--- a/Documentation/devicetree/bindings/memory-controllers/ingenic,nemc.yaml
+++ b/Documentation/devicetree/bindings/memory-controllers/ingenic,nemc.yaml
@@ -39,38 +39,6 @@ properties:
 patternProperties:
   ".*@[0-9]+$":
     type: object
-    properties:
-      reg:
-        minItems: 1
-        maxItems: 255
-
-      ingenic,nemc-bus-width:
-        $ref: /schemas/types.yaml#/definitions/uint32
-        enum: [8, 16]
-        description: Specifies the bus width in bits.
-
-      ingenic,nemc-tAS:
-        $ref: /schemas/types.yaml#/definitions/uint32
-        description: Address setup time in nanoseconds.
-
-      ingenic,nemc-tAH:
-        $ref: /schemas/types.yaml#/definitions/uint32
-        description: Address hold time in nanoseconds.
-
-      ingenic,nemc-tBP:
-        $ref: /schemas/types.yaml#/definitions/uint32
-        description: Burst pitch time in nanoseconds.
-
-      ingenic,nemc-tAW:
-        $ref: /schemas/types.yaml#/definitions/uint32
-        description: Address wait time in nanoseconds.
-
-      ingenic,nemc-tSTRV:
-        $ref: /schemas/types.yaml#/definitions/uint32
-        description: Static memory recovery time in nanoseconds.
-
-    required:
-      - reg
 
 required:
   - compatible
diff --git a/Documentation/devicetree/bindings/mtd/ingenic,nand.yaml b/Documentation/devicetree/bindings/mtd/ingenic,nand.yaml
index 9de8ef6e59ca..8c272c842bfd 100644
--- a/Documentation/devicetree/bindings/mtd/ingenic,nand.yaml
+++ b/Documentation/devicetree/bindings/mtd/ingenic,nand.yaml
@@ -11,6 +11,7 @@ maintainers:
 
 allOf:
   - $ref: nand-controller.yaml#
+  - $ref: /schemas/memory-controllers/ingenic,nemc-peripherals.yaml#
 
 properties:
   compatible: