Commit cebd717d authored by Lorenzo Bianconi's avatar Lorenzo Bianconi Committed by Jakub Kicinski
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dt-bindings: net: airoha: npu: Add memory regions used for wlan offload 



Document memory regions used by Airoha EN7581 NPU for wlan traffic
offloading. The brand new added memory regions do not introduce any
backward compatibility issues since they will be used just to offload
traffic to/from the MT76 wireless NIC and the MT76 probing will not fail
if these memory regions are not provide, it will just disable offloading
via the NPU module.

Reviewed-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: default avatarLorenzo Bianconi <lorenzo@kernel.org>
Link: https://patch.msgid.link/20250811-airoha-en7581-wlan-offlaod-v7-1-58823603bb4e@kernel.org


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 7ceff083

Documentation/devicetree/bindings/net/airoha,en7581-npu.yaml

+18 −4
Original line number Diff line number Diff line
@@ -41,9 +41,21 @@ properties: 
      - description: wlan irq line5



  memory-region:

    maxItems: 1

    description:

      Memory used to store NPU firmware binary.

    oneOf:

      - items:

          - description: NPU firmware binary region

      - items:

          - description: NPU firmware binary region

          - description: NPU wlan offload RX buffers region

          - description: NPU wlan offload TX buffers region

          - description: NPU wlan offload TX packet identifiers region



  memory-region-names:

    items:

      - const: firmware

      - const: pkt

      - const: tx-pkt

      - const: tx-bufid



required:

  - compatible
@@ -79,6 +91,8 @@ examples: 
                     <GIC_SPI 121 IRQ_TYPE_LEVEL_HIGH>,

                     <GIC_SPI 122 IRQ_TYPE_LEVEL_HIGH>,

                     <GIC_SPI 123 IRQ_TYPE_LEVEL_HIGH>;

        memory-region = <&npu_binary>;

        memory-region = <&npu_firmware>, <&npu_pkt>, <&npu_txpkt>,

                        <&npu_txbufid>;

        memory-region-names = "firmware", "pkt", "tx-pkt", "tx-bufid";

      };

    };