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 C310BD74EDE for ; Fri, 23 Jan 2026 14:55:00 +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:MIME-Version:In-Reply-To: Content-Type:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=kRuXnAsYd2Ke+IlJBCqsdspsBk6PlHdPuKDqiqBt62M=; b=JfBtzBce8iiLOqDEsfchlgaTl+ rFM74P5u/BcagZEXWvPAyY+bKXu6aAh0sxWblIJO49mrP7N4aX7b5ZAzGpt/G78aBd8KdUJecoEVh S6GfXt8eejSnlEzvcX43fglEozR7VY2K+bz8V/dSxKhrOMBGyf+P8LaibiT0OWW6g/Q6UPM4TLxT5 wZKYYuwhC5qUi6us+CHmvxdIXtqwRdWA41b+Byyt3RPLOko1qP1OwkAeJAL7ufMwWFuFmPxR7kvZ1 r++xF9lzxZkNTcp5G57mPaatv3II73jdHrYvr4/3gDBIqvtytWORIFMuz+DYcrCtxs+VM7cZOGSHD ynhx57MQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vjIYn-000000093x3-3zso; Fri, 23 Jan 2026 14:54:53 +0000 Received: from mail-norwayeastazon11013047.outbound.protection.outlook.com ([40.107.159.47] helo=OSPPR02CU001.outbound.protection.outlook.com) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vjIYl-000000093wh-2J56 for linux-arm-kernel@lists.infradead.org; Fri, 23 Jan 2026 14:54:52 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=Zk9V7fmAC0ryF2wKniPAToZ4UbjUXT9v4Qvb0Uk0uLhLRU+rCY48RMl1MYH2I7PkxIag9ticMyZjAD0YfgZbpNQ6bcOFK9l5GdwYO9kSJRFejAaC7Wl6s+s2rzLfYajiiv0R+iRyXhVEE7efjOfBnOw+2T21pSchlMPxtcBgy7jV89kI5ZptXZe10PPWs5blmUVekBbcjrlCugBfFNC9Iwe4r8Duc8+wZHyAi6l2MbVQcA2K+O0788ilJWDIJuSwGVjUqgWLhU06NDmargj73xeFZbkFXBlBJnZjLk50fTm1AGbtddVWxkDTFHvLfiym/+HBjbLzr82VgUDyt/GHxA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=kRuXnAsYd2Ke+IlJBCqsdspsBk6PlHdPuKDqiqBt62M=; b=KgIa0tPAcUlpjG3bdPYngJXi57kImkbeTfbgJVgBZbrRHhDqwCJ9+wK1cFw3KCNY2XIpKc3C2hstSOc9i0EOUi1exYyjZ5TcjqOK/irfZPSlDxhdMjkoSNk8eYzolgobJp4H03egxQPzpqwlYElbaD94D5HsxrjToMegOCNh8XECoY0RMjMJVWBuOAMQjfophqTLV3mOx6upE/WA7tKpcG7JhUwtrhVgXpHjtrbi0/+Kz1mQyb0fiFZBMRdKfXQ15BC1zSK2bRqNU+NioPqj6oADd1lrgTnV5JnrpTpv9sHLf5idrHVBYO+95WbVJo9TIAUFSP8MlIChW7bXhUNEHQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=nxp.com; dmarc=pass action=none header.from=nxp.com; dkim=pass header.d=nxp.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nxp.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=kRuXnAsYd2Ke+IlJBCqsdspsBk6PlHdPuKDqiqBt62M=; b=BeXGK5xaQK9nBHts6JC5Ibrt9UcUxZIRIqpztnCbXcMrWaswyyx00Sn76LnSxfRo6NNnCmrL9EAu5O7OKhRJpz4BBrIVFjKRuLO4iSX3g8oP063lJ8H0V4ibKbj5KiHotjQEyb45CVzpkwVcQ78cOqGI1dAPCupa/WZ1fjg6fiyLWsiKYe2GgX4zHxKar49uNayzfLg7VKexj1KKFhPMFYsB3D699I+YJhMhUHUB/QjPikTMAC/fPv6cuMn4XYVRgJ1gP3AQbfqNTG8OEG2InkaTurC4paXFilhMgYb08CaYaHQX80NO6Ck1GpGT+7zhyTnbi6hIcZ4DufHEHtg3kg== Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=nxp.com; Received: from PAXPR04MB8957.eurprd04.prod.outlook.com (2603:10a6:102:20c::5) by PA2PR04MB10159.eurprd04.prod.outlook.com (2603:10a6:102:406::8) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9542.11; Fri, 23 Jan 2026 14:54:46 +0000 Received: from PAXPR04MB8957.eurprd04.prod.outlook.com ([fe80::9c5d:8cdf:5a78:3c5]) by PAXPR04MB8957.eurprd04.prod.outlook.com ([fe80::9c5d:8cdf:5a78:3c5%3]) with mapi id 15.20.9499.005; Fri, 23 Jan 2026 14:54:46 +0000 Date: Fri, 23 Jan 2026 09:54:38 -0500 From: Frank Li To: Joy Zou Cc: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , Peng Fan , Ye Li , devicetree@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Laurentiu Mihalcea Subject: Re: [PATCH v2] arm64: dts: imx95: Reserve eDMA channels 0-1 for V2X Message-ID: References: <20260123-b4-imx95-v2x-v2-1-0497a9814668@nxp.com> Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260123-b4-imx95-v2x-v2-1-0497a9814668@nxp.com> X-ClientProxiedBy: PH0PR07CA0005.namprd07.prod.outlook.com (2603:10b6:510:5::10) To PAXPR04MB8957.eurprd04.prod.outlook.com (2603:10a6:102:20c::5) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: PAXPR04MB8957:EE_|PA2PR04MB10159:EE_ X-MS-Office365-Filtering-Correlation-Id: 8e11c794-a2ee-46d2-4bad-08de5a8f59c9 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|7416014|52116014|19092799006|1800799024|366016|38350700014|7142099003; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?vdaK7UJ8P/87PxTP8wnnWy7qulbQPBeVbx/vRIJ5LTLPEjQ4b/SUO01XPmap?= =?us-ascii?Q?K4ldn6NMRSYrEb8i97pI4EtGma19uQMfw3mk1xoylhhp8x/5CCTWPI/t4wSl?= =?us-ascii?Q?4vpTiJa4tXpWH2IAn1dF8KhRWwFoLtBkyHWhJ+WLqpnCV20T8O2zj7LEns48?= =?us-ascii?Q?igGR0D1PL1iZlhHMgJ+YU7AhkaHcD81d8pf8qwkmqddnu+Ne+gWztJ4p4WZZ?= =?us-ascii?Q?9NTxb+eeEERg0Jnk/V9EIXUcA/3wxxfXov25Y8zoESs07bNqYaSxnRdLDM8v?= =?us-ascii?Q?+otVUwIHiNpVfZMkCc4596m/VNpzbVw99PhjjSk6V9TzVEIXdVPFC7c0bxe+?= =?us-ascii?Q?tz26KyiY6xdrQgMibw8wxmEe/t7obXbWAV9rKR48A1fqb2YUzs9msicOPfBG?= =?us-ascii?Q?MEQG2kWgtw8nfKAWVBgdkbZq+YlIPkoBwSj4kkCmqAHenMDyEqgJ46OsS4oj?= =?us-ascii?Q?OCBSfoABfRa8jkkOWuz0jaINaqj5s7vAsbCEMgWVukzKALCVdH5VKtR559oo?= =?us-ascii?Q?A2AiYEZMIiAzL4p1GlcoZlnz1tL0IZ5rK9tj6JeNKFEYCtOIyHnv2flo7KL8?= =?us-ascii?Q?bWvx2IsMrwFEnqh61jH/oQJxYl9fWqREwhhrT+MwS2NOFRweIWIRjEEFpU2p?= =?us-ascii?Q?wpCkwnbYq0NWCzJDcBp1xQGqcxpQMeZvLDQCJ3LHFblKLY2nKuqhRTKKYL2S?= =?us-ascii?Q?7Af71mz8wyLuS2XhUBgYyTNpbMze0puZtRsK6s2vS7aO+7bxtM50UrVdB/KA?= =?us-ascii?Q?Lv2KrikLA7deGHpRoKeSjZwni+GcW2T0ybKifacfBEf0e9wZSQdDDh7QXqCD?= =?us-ascii?Q?ObqJNuZAEFf0rJ+uS2H0kUuRKHj0h2E8nRMV4jd+egy9+O9nyvXFwa0pTVEi?= =?us-ascii?Q?sbDwZiIdYnqR/i9aU1Nk3kW8Dz2QinhV7v/d3j2YabITnRHCSCaO8gtQRCdK?= =?us-ascii?Q?UJhTe7JY3rdvUYNXVE3HogD4zg2XEoGgZHElUrQfjy+Hx+4cabISCqRZJZKF?= =?us-ascii?Q?rjei86fwJfiuddVg8928+GBYT3ZbHsO40CUYfLDfoG3HlWEvELyDH2sCjSd1?= =?us-ascii?Q?Zq6XGiI+o09gJdAvTGf1lv/8AIZ/KtQ/xFKG0ijz6Qi3kKTV+Sd8cmcD7SEO?= =?us-ascii?Q?Iz4G6iE6MAZvPd0j99J+n1pAfBSvWVcz99VP8FPSs9FPVYNiCwENRL1MrQTg?= =?us-ascii?Q?iZ/s5DciUyqGe27VZEolaXj6uPKl85m5/bQLdv2llGnT5W1P8rmpZZGAJ9YD?= =?us-ascii?Q?F9lviPTIPgmhkUEia3YZjwOI6Ro0v+vw6BI64MY3kfbF7ZPzvOY99y3Byala?= =?us-ascii?Q?v/vtTuUZ5Rz1QUCSlbvvbhEaUHSdPTuDVnJTXfu8EH4g1YiHFRWRmOloDT4r?= =?us-ascii?Q?I3Us9fRVtp2UWw+ZMnO3KwLfUPzQ3+1uRT26hS6Mqqefx+qRoAd4/AmFyq51?= =?us-ascii?Q?Qf+/2xLPY9nYp/3hnfmNW0QYvOrSHlRP4gjJTkia56genk9y+WOeM3BK955T?= =?us-ascii?Q?6TxPPJ0+/iETiNVTBLCTXpfY3zzmpUZ4Er3WP2cAfF21b7rRJLzJQN6woXnC?= =?us-ascii?Q?6R4Mx/qBF0ncuR3o1bpCAGg8P+u6zwahNf7OLBkpBZLpG6WAQwhZJcqovUm6?= =?us-ascii?Q?UAmCQez8cSJtM3YvEook3es=3D?= X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:PAXPR04MB8957.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(376014)(7416014)(52116014)(19092799006)(1800799024)(366016)(38350700014)(7142099003);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?hP65Q4pVqTt37Sol4LFzVZh2IikYukVnt2CpJ8Bho4TaaTh6VzmchJtkDoP4?= =?us-ascii?Q?YDGzTX19IVEh1IlglVaGeXsTpcoX52SFN4ftn1G6JDpDE+MS4cS8SP4QXQah?= =?us-ascii?Q?m/t5xTBRCwwUwuvsgfO4YyuX+X3XsQ4GxBxT0KIZm1ryqnPMN6pyHm3rMdG3?= =?us-ascii?Q?/2mewyVTcYJ2VwAyy+9hmTmoxBH0KCnICk2SrKmdrMOISK6qnuJpZKTGiNij?= =?us-ascii?Q?I0by8xHWXzKW8NOX6Dua+pWsbXF/RZXg22nUq8+pGUUAFIFbIoTHK13L8gZc?= =?us-ascii?Q?Z/JbIAor0hACA+7jkof0DYHYVIRqxNMdBuRXMmaf22FfFzIlJetJrn4G8qiI?= =?us-ascii?Q?hLa2mPLGNFr6m4cN7TnaHjJqkqPSeUCQvYd7ZYxUw9JyQOy9uyNHyBu1xW8F?= =?us-ascii?Q?Kp+aeC9rXkmtwpzYD86hZ7Rc/noBKerohxZ7o+HGfyG4rpI1H5ny1EQMOJxM?= =?us-ascii?Q?s1afIZ2iaDaAYS7gE3Ojnrm6/s74vwCwcrO5NyEqdjHzDDRmlA9IAh8R+oHH?= =?us-ascii?Q?vQyVomm2Vc6yWNpzh+CK+R0uH7gasCDy3kecPuIkMMSNw1KdSBribNlqAcwT?= =?us-ascii?Q?EMSckV9/8IOb06Uibx6hWFC+lTrIe//XF4IcpEyWEG+PMhR5rXLSZFN6/bMV?= =?us-ascii?Q?e61YKAVQYrS+mJ+5KQYVcsitEFewv6QrhcTYSB5VltrqcQY3/ksmfovd4Yc3?= =?us-ascii?Q?sgCyAOwwAsOUBdBVjn2Rc984dbidrTCrV9K2hjV+TgW8WzbZNGCnJL1sIcnb?= =?us-ascii?Q?wM+dTAmUIxW8kABkMFqO6c/zhMKU4WhF9XTr6zbuNJxqfMd2AbwjBgUgVaSq?= =?us-ascii?Q?BXl/jmMItc2v9nW8pg8INv1vOgkO10woXPt1ShmJJxcvhDp39kQdvtMR89E+?= =?us-ascii?Q?0FfYUSENeLv8/QvMZ70LxKwUjEjagSZYwPmdNIBgxAYlNJ6qZSVEd46bzt2U?= =?us-ascii?Q?DwvSilM+m24mtt7J6JP52f3pwpmurtwLw07DAmDT2YoO6sVGfIyWtDI+/qZE?= =?us-ascii?Q?YLniypvXjgQsVbe1OzE0Ru1XiIp6E2ok8SVgyd7YLs8J4AJQ8nnpozCt8Or5?= =?us-ascii?Q?9nwwsvkJJ4qoxZHjMb3AxDw407U2Rl2PtThG+l+DgZD51OLppGgjhcWwe6hU?= =?us-ascii?Q?eouMNqr21q289vz0Xjwv5noiupWxh8bNfZTNwopi+JYu7A0gxU/S1KcGzi7Z?= =?us-ascii?Q?DBCagcocMvmMKFw2R1lFDsm7NNpIdTNFDFaguniYu49jMDXC8saQM9XdpZTK?= =?us-ascii?Q?0RBNekZTyDuVszpFrx5SIxdM8hQExPbk/nUO5Km9jbZjyj18BjlwRpM5ubSG?= =?us-ascii?Q?r3zDqlWyDahGJYOuUoW3UySyb3pQ8D470kpCbsBeQQanK2C4Ft6VjimCGUAV?= =?us-ascii?Q?3pgXCDE1JRt0XV8UtVwORdj6gdD/asWwtkLajVFYCFVgo6Uga1/x2bFSUBhN?= =?us-ascii?Q?us6srIclddwLbl0IAscm/gXup8I1maEq6RMHerhCCNKY/nBPfAUOX3k4cGfi?= =?us-ascii?Q?OpnFM8eeW9rgRUZvdVC7jZEg6aYj/sOkjsHgmPXttzBs+nKs7lo0jhSLyftL?= =?us-ascii?Q?VNoD0Fg2LTdGbFN8ejJldwlkO8Xx2IwHZWxa/tyJjZvxoyn9Bq9yB0kt5nDG?= =?us-ascii?Q?lgSksH5ppL5UuRDMW0bUeYEdkaWanRu9jl6UZAkx4hKWjDxkL7JdDF4cjzUs?= =?us-ascii?Q?9VFy9fgEVjrmu0YidZeWP6DlhrloyXQJskUbYxtbVPTmxNEOORDofUVLkavp?= =?us-ascii?Q?trdkUiP2vQ=3D=3D?= X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 8e11c794-a2ee-46d2-4bad-08de5a8f59c9 X-MS-Exchange-CrossTenant-AuthSource: PAXPR04MB8957.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 23 Jan 2026 14:54:46.7642 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: wEbwx9gsMASE6jcptQiPNq/B3qJbO4jiGSs7gNn+3JdVQibzZvoltOpSLOxH3tBjF0dAhgmyEatDdhYmdzzrMA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: PA2PR04MB10159 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260123_065451_613026_4C955CD0 X-CRM114-Status: GOOD ( 19.30 ) 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 On Fri, Jan 23, 2026 at 06:26:27PM +0800, Joy Zou wrote: > Reserve eDMA channels 0 and 1 on the AXI eDMA controller for exclusive > use by V2X (Vehicle-to-Everything) fast hash operations. > > Reviewed-by: Laurentiu Mihalcea > Tested-by: Laurentiu Mihalcea > Signed-off-by: Joy Zou > --- > Changes in v2: > - modify imx95-19x19-evk-sof.dts dma-channel-mask property. > - add comments for mask channel. > - add Reviewed-by and Tested-by tag, tested on MX95-15x15-FRDM, MX95-19x19-EVK. > - Link to v1: https://lore.kernel.org/r/20260120-b4-imx95-v2x-v1-1-52b2025b27a0@nxp.com > --- > arch/arm64/boot/dts/freescale/imx95-19x19-evk-sof.dts | 7 +++++-- > arch/arm64/boot/dts/freescale/imx95.dtsi | 2 ++ common dtsi and board dts use two patch. > 2 files changed, 7 insertions(+), 2 deletions(-) > > diff --git a/arch/arm64/boot/dts/freescale/imx95-19x19-evk-sof.dts b/arch/arm64/boot/dts/freescale/imx95-19x19-evk-sof.dts > index 808a9fe3ebb2b9557be9e428583e76c32517de08..264703f6eef64813d64fe07713cf92fd02fa0778 100644 > --- a/arch/arm64/boot/dts/freescale/imx95-19x19-evk-sof.dts > +++ b/arch/arm64/boot/dts/freescale/imx95-19x19-evk-sof.dts > @@ -55,8 +55,11 @@ sound-wm8962 { > }; > > &edma2 { > - /* channels 30 and 31 reserved for FW usage */ > - dma-channel-mask = <0xc0000000>, <0x0>; > + /* > + * channels 0 and 1 reserved for V2X fast hash, > + * channels 30 and 31 reserved for FW usage > + */ > + dma-channel-mask = <0xc0000003>, <0x0>; Need add to commit message. Frank > }; > > &sai3 { > diff --git a/arch/arm64/boot/dts/freescale/imx95.dtsi b/arch/arm64/boot/dts/freescale/imx95.dtsi > index 55e2da094c889fc7c1096d0e36f31ae118d2a982..9ac82da2ff440e08ae8378d7ff830a568d50a354 100644 > --- a/arch/arm64/boot/dts/freescale/imx95.dtsi > +++ b/arch/arm64/boot/dts/freescale/imx95.dtsi > @@ -631,6 +631,8 @@ edma2: dma-controller@42000000 { > reg = <0x42000000 0x210000>; > #dma-cells = <3>; > dma-channels = <64>; > + /* channels 0 and 1 reserved for V2X fast hash */ > + dma-channel-mask = <0x3>; > interrupts = , > , > , > > --- > base-commit: d08c85ac8894995d4b0d8fb48d2f6a3e53cd79ab > change-id: 20260120-b4-imx95-v2x-3e01c7bc6881 > > Best regards, > -- > Joy Zou >