From nobody Tue Apr 7 17:16:27 2026 Received: from inva021.nxp.com (inva021.nxp.com [92.121.34.21]) (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 35BB436E461; Thu, 26 Feb 2026 13:41:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=92.121.34.21 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772113271; cv=none; b=As1QW9uK2Ju3XAHSlGSDv7Hebf0fYe9Nc/siYzZERcCmccHK0E49yReenbxnGVgeunsd9QdZB998iJw7CbJ++13CpuHDK0mviYffkrnlTj8TFku3Y7YrPOiUVGNBXpALwkVo7XqVMGg8bC5yOiPuqIt1t8cAX58/F+3sZFILLaI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772113271; c=relaxed/simple; bh=4tUFBDNFe36c+mcDJ/TUmnKANKlcvCmSziTeWU5kAHY=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=RNz53Bn1vnp6sZsN6OS+P51wnqD4RGOWRY+slr/VCj6AgPBOfA2stdcOeAGD/T4KCRLHigto9pARmSWmCjXDe+6ENEl8rJ1w3Jvoaa9gP7pth6Va+Z02PHbddhWTy8jIvmB9+hNiqx+hxWu/eiZ2FOM+KYcXiVH5kJl3UNpN2TM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=nxp.com; spf=pass smtp.mailfrom=nxp.com; arc=none smtp.client-ip=92.121.34.21 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=nxp.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=nxp.com Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id DCC8620151F; Thu, 26 Feb 2026 14:41:07 +0100 (CET) Received: from inva024.eu-rdc02.nxp.com (inva024.eu-rdc02.nxp.com [134.27.226.22]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id CD44920153B; Thu, 26 Feb 2026 14:41:07 +0100 (CET) Received: from lsv15149.swis.ro-buh01.nxp.com (lsv15149.swis.ro-buh01.nxp.com [10.162.246.145]) by inva024.eu-rdc02.nxp.com (Postfix) with ESMTP id 22DA22035B; Thu, 26 Feb 2026 14:41:06 +0100 (CET) From: Ioana Ciocoi-Radulescu Date: Thu, 26 Feb 2026 15:40:48 +0200 Subject: [PATCH 9/9] arm64: dts: imx95: Add Neutron node 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: <20260226-neutron-v1-9-46eccb3bb50a@nxp.com> References: <20260226-neutron-v1-0-46eccb3bb50a@nxp.com> In-Reply-To: <20260226-neutron-v1-0-46eccb3bb50a@nxp.com> To: Oded Gabbay , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Sumit Semwal , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Frank Li , =?utf-8?q?Christian_K=C3=B6nig?= Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, devicetree@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-media@vger.kernel.org, linaro-mm-sig@lists.linaro.org, Jiwei Fu , Forrest Shi , Alexandru Taran , Ioana Ciocoi-Radulescu X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1772113256; l=1689; i=ruxandra.radulescu@nxp.com; s=20260204; h=from:subject:message-id; bh=4tUFBDNFe36c+mcDJ/TUmnKANKlcvCmSziTeWU5kAHY=; b=i4gdK2fWXKlkKm+telHbxNq04X/A+NXwzbBH9AwpDRh87tKHmqQ+L+rNqeCY6UkJFgGxmeDUF +rSE8KSbNgBBucn0Qom0GzJhb2QD3OLVA/acP8Se/lmSVTQOpR/ywtv X-Developer-Key: i=ruxandra.radulescu@nxp.com; a=ed25519; pk=zoq4b4OYR0c4faAH97xoTxdr6vfR8OvPbS+Cx0XhIBY= X-Virus-Scanned: ClamAV using ClamSMTP Add the node for Neutron NPU. Also add a reserved memory region for allocating Neutron buffers, which have a 1MB alignment constraint. Signed-off-by: Jiwei Fu Signed-off-by: Ioana Ciocoi-Radulescu --- arch/arm64/boot/dts/freescale/imx95.dtsi | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/imx95.dtsi b/arch/arm64/boot/dts= /freescale/imx95.dtsi index 55e2da094c88..7a41bb50d650 100644 --- a/arch/arm64/boot/dts/freescale/imx95.dtsi +++ b/arch/arm64/boot/dts/freescale/imx95.dtsi @@ -336,6 +336,19 @@ sram1: sram@204c0000 { #size-cells =3D <1>; }; =20 + reserved-memory { + #address-cells =3D <2>; + #size-cells =3D <2>; + ranges; + + neutron_pool: neutron-pool { + compatible =3D "shared-dma-pool"; + size =3D <0x0 0x8000000>; + alignment =3D <0x0 0x100000>; + reusable; + }; + }; + firmware { scmi { compatible =3D "arm,scmi"; @@ -2181,5 +2194,20 @@ ddr-pmu@4e090dc0 { reg =3D <0x0 0x4e090dc0 0x0 0x200>; interrupts =3D ; }; + + neutron: neutron@4ab00000 { + compatible =3D "nxp,imx95-neutron"; + reg =3D <0x0 0x4ab00000 0x0 0x00000400>, + <0x0 0x4ab10000 0x0 0x00010000>, + <0x0 0x4ab08000 0x0 0x00008000>; + reg-names =3D "regs", "itcm", "dtcm"; + memory-region =3D <&neutron_pool>; + interrupts =3D ; + clocks =3D <&scmi_clk IMX95_CLK_NPU>, + <&scmi_clk IMX95_CLK_NPUAPB>; + clock-names =3D "npu", "npu_apb"; + power-domains =3D <&scmi_devpd IMX95_PD_NPU>; + iommus =3D <&smmu 0xd>; + }; }; }; --=20 2.34.1