From nobody Sat Feb 7 11:09:20 2026 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 38BD52FFFBC; Wed, 15 Oct 2025 17:47:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760550474; cv=none; b=HMstHlUvd6K08UGVXUpawvCWcxhs9gAJ3G6m7mws0L8Ozfx9JiRiK4CpAd5Ql7hX+8jj4oKGatKnpFQFPqIMo3ZT2Pfz3eY+SIiw1v3KbIEybYUk9bVQ9a9IzaotNzYmUzCAyoLL4ooiLX3YlOJYzkn1Fy4wpngXiE3AgbE4m0g= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760550474; c=relaxed/simple; bh=zP3ASKKYt+IAMTwO8/NP5vwen6r6D7nE2UfM/VAy5/A=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=tKWg1vh7wDEF3UbJws0EerQdImyQXCWoLL4nJgiR2v7xe0gFWRRBBc5Stgf/bHUVHSfrKdtxDcCbnKNk95XBUbKYY1fTlQ2izDNF/Hsbr+mZB2ND0Zeq2wuF7Bh311UyfNAAzX5erRscCS7k5sGYF6YKFVZRxBZm9+0Y0NSb4jE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=kF0mYjOV; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="kF0mYjOV" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 94A53C4CEF8; Wed, 15 Oct 2025 17:47:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1760550473; bh=zP3ASKKYt+IAMTwO8/NP5vwen6r6D7nE2UfM/VAy5/A=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=kF0mYjOVuMG6XvSW4EDvE9Y1qxt95ubyVQRFi/DNr+i2hqk8Tb/8JinQwiKfwF1Cu OxytE/dfw9IgiI2fyoobGTieMn5tso4ILuZ5B7RxCzqNv8Egh9R/WYVUgrqIkezaez Y9lw70fK133FytIqQE7I+/7abVvklM2NO/B+eViYBNSkAgcyxN4RsL3oXd4Y2XYIK4 FsKt80SIL6E6doPatKaSZN8Eao2ETqFBKQ7w9bewHg+gAD+s6fMb6Q8vAGKlAeOL2n OLIOrsvwgMIkKGJNbwuQR7iYDV4BcVeXWZBMm++xw8B2C8b6o/9WIg4dVntnAHNXUN LezJY+mP7Kmhg== From: "Rob Herring (Arm)" Date: Wed, 15 Oct 2025 12:47:39 -0500 Subject: [PATCH v4 1/2] dt-bindings: npu: Add Arm Ethos-U65/U85 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20251015-ethos-v4-1-81025a3dcbf3@kernel.org> References: <20251015-ethos-v4-0-81025a3dcbf3@kernel.org> In-Reply-To: <20251015-ethos-v4-0-81025a3dcbf3@kernel.org> To: Tomeu Vizoso , Krzysztof Kozlowski , Conor Dooley , Oded Gabbay , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Sumit Semwal , =?utf-8?q?Christian_K=C3=B6nig?= , Robin Murphy , Steven Price , Daniel Stone , Frank Li , Sui Jingfeng Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-media@vger.kernel.org, linaro-mm-sig@lists.linaro.org, Krzysztof Kozlowski , Frank Li X-Mailer: b4 0.15-dev Add a binding schema for Arm Ethos-U65/U85 NPU. The Arm Ethos-U NPUs are designed for edge AI inference applications. Reviewed-by: Krzysztof Kozlowski Reviewed-by: Frank Li Signed-off-by: Rob Herring (Arm) --- .../devicetree/bindings/npu/arm,ethos.yaml | 79 ++++++++++++++++++= ++++ 1 file changed, 79 insertions(+) diff --git a/Documentation/devicetree/bindings/npu/arm,ethos.yaml b/Documen= tation/devicetree/bindings/npu/arm,ethos.yaml new file mode 100644 index 000000000000..716c4997f976 --- /dev/null +++ b/Documentation/devicetree/bindings/npu/arm,ethos.yaml @@ -0,0 +1,79 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/npu/arm,ethos.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Arm Ethos U65/U85 + +maintainers: + - Rob Herring + +description: > + The Arm Ethos-U NPUs are designed for IoT inference applications. The NP= Us + can accelerate 8-bit and 16-bit integer quantized networks: + + Transformer networks (U85 only) + Convolutional Neural Networks (CNN) + Recurrent Neural Networks (RNN) + + Further documentation is available here: + + U65 TRM: https://developer.arm.com/documentation/102023/ + U85 TRM: https://developer.arm.com/documentation/102685/ + +properties: + compatible: + oneOf: + - items: + - enum: + - fsl,imx93-npu + - const: arm,ethos-u65 + - items: + - {} + - const: arm,ethos-u85 + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + maxItems: 2 + + clock-names: + items: + - const: core + - const: apb + + power-domains: + maxItems: 1 + + sram: + maxItems: 1 + +required: + - compatible + - reg + - interrupts + - clocks + +additionalProperties: false + +examples: + - | + #include + #include + #include + + npu@4a900000 { + compatible =3D "fsl,imx93-npu", "arm,ethos-u65"; + reg =3D <0x4a900000 0x1000>; + interrupts =3D ; + power-domains =3D <&mlmix>; + clocks =3D <&clk IMX93_CLK_ML>, <&clk IMX93_CLK_ML_APB>; + clock-names =3D "core", "apb"; + sram =3D <&sram>; + }; +... --=20 2.51.0