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diff --git a/Documentation/devicetree/bindings/misc/nvidia,tegra20-apbmisc.yaml b/Documentation/devicetree/bindings/misc/nvidia,tegra20-apbmisc.yaml
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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/misc/nvidia,tegra20-apbmisc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NVIDIA Tegra APBMISC block
+
+maintainers:
+  - Thierry Reding <thierry.reding@gmail.com>
+  - Jon Hunter <jonathanh@nvidia.com>
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - enum:
+              - nvidia,tegra210-apbmisc
+              - nvidia,tegra124-apbmisc
+              - nvidia,tegra114-apbmisc
+              - nvidia,tegra30-apbmisc
+          - const: nvidia,tegra20-apbmisc
+
+      - items:
+          - const: nvidia,tegra20-apbmisc
+
+  reg:
+    items:
+      - description: physical address and length of the registers which
+          contain revision and debug features
+      - description: physical address and length of the registers which
+          indicate strapping options
+
+  nvidia,long-ram-code:
+    description: If present, the RAM code is long (4 bit). If not, short
+      (2 bit).
+    type: boolean
+
+additionalProperties: false
+
+required:
+  - compatible
+  - reg
+
+examples:
+  - |
+    apbmisc@70000800 {
+        compatible = "nvidia,tegra20-apbmisc";
+        reg = <0x70000800 0x64>, /* Chip revision */
+              <0x70000008 0x04>; /* Strapping options */
+    };