diff --git a/Documentation/devicetree/bindings/arm/bcm/brcm,vulcan-soc.txt b/Documentation/devicetree/bindings/arm/bcm/brcm,vulcan-soc.txt
deleted file mode 100644
index 223ed3471c08..000000000000
--- a/Documentation/devicetree/bindings/arm/bcm/brcm,vulcan-soc.txt
+++ /dev/null
@@ -1,10 +0,0 @@
-Broadcom Vulcan device tree bindings
-------------------------------------
-
-Boards with Broadcom Vulcan shall have the following root property:
-
-Broadcom Vulcan Evaluation Board:
-  compatible = "brcm,vulcan-eval", "brcm,vulcan-soc";
-
-Generic Vulcan board:
-  compatible = "brcm,vulcan-soc";
diff --git a/Documentation/devicetree/bindings/arm/bcm/brcm,vulcan-soc.yaml b/Documentation/devicetree/bindings/arm/bcm/brcm,vulcan-soc.yaml
new file mode 100644
index 000000000000..c5b6f31c20b9
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/bcm/brcm,vulcan-soc.yaml
@@ -0,0 +1,22 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/bcm/brcm,vulcan-soc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Broadcom Vulcan device tree bindings
+
+maintainers:
+  - Robert Richter <rrichter@marvell.com>
+
+properties:
+  $nodename:
+    const: '/'
+  compatible:
+    items:
+      - enum:
+        - brcm,vulcan-eval
+        - cavium,thunderx2-cn9900
+      - const: brcm,vulcan-soc
+
+...