From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 0EB47FCE07F for ; Thu, 26 Feb 2026 13:41:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To:References :Message-Id:Content-Transfer-Encoding:Content-Type:MIME-Version:Subject:Date: From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=K3RUFyKKjAuMEfu7oG2Bb6F0BcKNyg9iWfkucG7nJsc=; b=nVMMQq9cANxtfMelfwxhfmQJ0V XcDpIMVFQFVLo0HQ8TxCaffVyIStD3zdt3DI87low0x0TTVAUAaZxtEdEti9H3BV6syNv/eqcUPA8 9h9p2YjCitBIw29DPyezf4WdPi7JlnrSjbpwtFi6wvDPI3QR0pyNgnYKd7VBzpBtWztEBtCMcWplE wtnJ82TB3CM15ToAB5tQV0yCi1Phmfm0qK0JAzBpczkOxR5dE183qKi5qvCLkc/ol0QX+rxndlaCs MGXqf/JEHzbM/Y7MRBT7aAgoy/b6ngU/wifbV/9z2lseAbk2TMiOxQwL2DOzUNFzSQaVGvitGKkRS 7jqSSJfQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vvbcc-00000006FRy-3uVD; Thu, 26 Feb 2026 13:41:42 +0000 Received: from inva021.nxp.com ([92.121.34.21]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vvbc5-00000006Eqo-1INh for linux-arm-kernel@lists.infradead.org; Thu, 26 Feb 2026 13:41:11 +0000 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 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit 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 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260226_054109_529128_AB697B07 X-CRM114-Status: UNSURE ( 9.07 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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 = <1>; }; + reserved-memory { + #address-cells = <2>; + #size-cells = <2>; + ranges; + + neutron_pool: neutron-pool { + compatible = "shared-dma-pool"; + size = <0x0 0x8000000>; + alignment = <0x0 0x100000>; + reusable; + }; + }; + firmware { scmi { compatible = "arm,scmi"; @@ -2181,5 +2194,20 @@ ddr-pmu@4e090dc0 { reg = <0x0 0x4e090dc0 0x0 0x200>; interrupts = ; }; + + neutron: neutron@4ab00000 { + compatible = "nxp,imx95-neutron"; + reg = <0x0 0x4ab00000 0x0 0x00000400>, + <0x0 0x4ab10000 0x0 0x00010000>, + <0x0 0x4ab08000 0x0 0x00008000>; + reg-names = "regs", "itcm", "dtcm"; + memory-region = <&neutron_pool>; + interrupts = ; + clocks = <&scmi_clk IMX95_CLK_NPU>, + <&scmi_clk IMX95_CLK_NPUAPB>; + clock-names = "npu", "npu_apb"; + power-domains = <&scmi_devpd IMX95_PD_NPU>; + iommus = <&smmu 0xd>; + }; }; }; -- 2.34.1