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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/soc/fsl/fsl,qman-fqd.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: QMan Private Memory Nodes
+
+maintainers:
+ - Frank Li <Frank.Li@nxp.com>
+
+description: |
+ QMan requires two contiguous range of physical memory used for the backing store
+ for QMan Frame Queue Descriptor (FQD) and Packed Frame Descriptor Record (PFDR).
+ This memory is reserved/allocated as a node under the /reserved-memory node.
+
+ BMan requires a contiguous range of physical memory used for the backing store
+ for BMan Free Buffer Proxy Records (FBPR). This memory is reserved/allocated as
+ a node under the /reserved-memory node.
+
+ The QMan FQD memory node must be named "qman-fqd"
+ The QMan PFDR memory node must be named "qman-pfdr"
+ The BMan FBPR memory node must be named "bman-fbpr"
+
+ The following constraints are relevant to the FQD and PFDR private memory:
+ - The size must be 2^(size + 1), with size = 11..29. That is 4 KiB to
+ 1 GiB
+ - The alignment must be a muliptle of the memory size
+
+ The size of the FQD and PFDP must be chosen by observing the hardware features
+ configured via the Reset Configuration Word (RCW) and that are relevant to a
+ specific board (e.g. number of MAC(s) pinned-out, number of offline/host command
+ FMan ports, etc.). The size configured in the DT must reflect the hardware
+ capabilities and not the specific needs of an application
+
+ For additional details about reserved memory regions see
+ reserved-memory/reserved-memory.yaml in dtschema project.
+
+properties:
+ $nodename:
+ pattern: '^(qman-fqd|qman-pfdr|bman-fbpr)+$'
+
+ compatible:
+ enum:
+ - fsl,qman-fqd
+ - fsl,qman-pfdr
+ - fsl,bman-fbpr
+
+required:
+ - compatible
+
+allOf:
+ - $ref: /schemas/reserved-memory/reserved-memory.yaml
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ reserved-memory {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ qman-fqd {
+ compatible = "fsl,qman-fqd";
+ size = <0 0x400000>;
+ alignment = <0 0x400000>;
+ no-map;
+ };
+ };