netdev - [PATCH net-next v4 1/2] dt-bindings: net: airoha: npu: Add firmware-name property

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Message-Id: <20260120-airoha-npu-firmware-name-v4-1-88999628b4c1@kernel.org>
Date: Tue, 20 Jan 2026 11:17:17 +0100
From: Lorenzo Bianconi <lorenzo@...nel.org>
To: Andrew Lunn <andrew+netdev@...n.ch>, 
 "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, 
 Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Lorenzo Bianconi <lorenzo@...nel.org>
Cc: netdev@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-arm-kernel@...ts.infradead.org, linux-mediatek@...ts.infradead.org, 
 Andrew Lunn <andrew@...n.ch>, 
 Krzysztof Kozlowski <krzysztof.kozlowski@....qualcomm.com>
Subject: [PATCH net-next v4 1/2] dt-bindings: net: airoha: npu: Add
 firmware-name property

Add firmware-name property in order to introduce the capability to
specify the firmware names used for 'RiscV core' and 'Data section'
binaries. This patch is needed because NPU firmware binaries are board
specific since they depend on the MediaTek WiFi chip used on the board
(e.g. MT7996 or MT7992) and the WiFi chip version info is not available
in the NPU driver. This is a preliminary patch to enable MT76 NPU
offloading if the Airoha SoC is equipped with MT7996 (Eagle) WiFi chipset.

Reviewed-by: Andrew Lunn <andrew@...n.ch>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@....qualcomm.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@...nel.org>
---
 Documentation/devicetree/bindings/net/airoha,en7581-npu.yaml | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/airoha,en7581-npu.yaml b/Documentation/devicetree/bindings/net/airoha,en7581-npu.yaml
index 19860b41286fd42f2a5ed15d5dc75ee0eb00a639..aefa19c5b42468dad841892fa5b75a47552762a0 100644
--- a/Documentation/devicetree/bindings/net/airoha,en7581-npu.yaml
+++ b/Documentation/devicetree/bindings/net/airoha,en7581-npu.yaml
@@ -59,6 +59,11 @@ properties:
       - const: ba
     minItems: 1

+  firmware-name:
+    items:
+      - description: Firmware name of RiscV core
+      - description: Firmware name of Data section
+
 required:
   - compatible
   - reg
@@ -96,5 +101,7 @@ examples:
         memory-region = <&npu_firmware>, <&npu_pkt>, <&npu_txpkt>,
                         <&npu_txbufid>, <&npu_ba>;
         memory-region-names = "firmware", "pkt", "tx-pkt", "tx-bufid", "ba";
+        firmware-name = "airoha/en7581_npu_rv32.bin",
+                        "airoha/en7581_npu_data.bin";
       };
     };

-- 
2.52.0