From nobody Thu Apr 2 10:57:41 2026 Received: from PA4PR04CU001.outbound.protection.outlook.com (mail-francecentralazon11013018.outbound.protection.outlook.com [40.107.162.18]) (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 B30C83314BF; Wed, 18 Mar 2026 06:29:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=40.107.162.18 ARC-Seal: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773815357; cv=fail; b=k8Ov9HSpw/ecwNNKzTGPwlC+KEjXr9KQZ91Y2sdHAaoTcisIRQhemFvMXO1ZXHIabfxu+xeuol4zvE8R88eh2W2X5lOOqpfJFh2XdEg9LIIXvbpoYyk9PNY7x1bl8jwUZbFqgmKLstmyqwafoDKVVCZaXT0Z72kqsPeTb+CK4ck= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773815357; c=relaxed/simple; bh=/jyd8WM5mjL2yNjCqIUshJAPjulkLYzY3BZwLUXC1Nk=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: Content-Type:MIME-Version; b=lV67GiseGoyvpaTSsh4hKQ/t+jSS1Ku+LpRf7WzklrgVsMZofqiSCEUJ2eT/Ki6oA65t9XieVD0gl0qA3bSKZJIJta2kNuxgD1bTkIlp42yJM0pstmuZP98bzZYyk2CI62OxRlRpAhw4KHciAR92ve1TjkHRU50WryYif1nhc60= ARC-Authentication-Results: i=2; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=nxp.com; spf=pass smtp.mailfrom=nxp.com; dkim=pass (2048-bit key) header.d=nxp.com header.i=@nxp.com header.b=KsqKFkpM; arc=fail smtp.client-ip=40.107.162.18 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 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=nxp.com header.i=@nxp.com header.b="KsqKFkpM" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=BYhCidcD+If3PJRNfeajw/mTzjBIW6bRiy6XhVb9NYKbbYWI/gQCHGeOSQx52CQYyioOEXkcqPC/7SN9BTLXQRHRJ5hAd7vnK8/H6X6oQSxJg8MPCHMAF6ZusI5XZEmbQv/Mg69ncnCcRpqjeWw0E/MKrZCh8zWIC/HiUV7Id67OOMjGONMbH7hgGCm1inmO5jPicHpZhcSSFdwoTQvXP0ry9u5p/tCZzCmAifJfM+w9NCCW58AFuAcmZn7pLtOYuzUJHt/tB5cy3SL36Ib43HzLkzCDWu6EBIgxWBZq0ydiVOUhU7B3jtSuozARIXJY9ZzO4zAW8/hTscWXkhgjSA== 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=zzEYEJCpGAVoSFS/77n0upIrt281k+WuWklTX1dO93Y=; b=VcPyvRdFjuSnObn0qNDCex6CO0SMMNZE6oXavsejBv0JWutbdYMecDZjIP5aIlQEDV94/FqWkCKWtNPPOl+IRRTqUgGYbAp1h42ntGaXmxagkY/HKTlNXkxqdWK9/dAqy9mTfkdUxs7XMdSiPptv9LnxBQSdPpsYYUaDgXd2585MZaE/7OsUuaGX5xwmcpuzklBrG3MF5mgyqxV97HugGuWSYAVFrpgflHYXvmXFhK+EbW+z/+qUPF/G7owAbwa27OPdsZ/BH4dnkkt4KvF7X6FAtjDoatECEYuidVrjrafslm8R3h/l1g2FlavQO2khAboaa2uQSwqryZLR99s/Hw== 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=zzEYEJCpGAVoSFS/77n0upIrt281k+WuWklTX1dO93Y=; b=KsqKFkpMW31MsqPvm5JxiAHg08mTYHiV5vFdDWK4oETwuw6uIB6YKU1wARKq+Xd01uceaJHjetpV1AlLFnJhZP618C8t1A33h6/zQPXtH1Ocsj2CFItObYzDX47+YMwgn6/q6Sk4jNsfbfdrJ4qAXuTcpotvj2wUQA4c9x5dwejy5uX6p/1iYwHGq7ELmvO0q5g4zFeyFwmTsj/cr774MIDID/tVIPPvDmiaTY2wLvkI3+bIofEJXBsEfda9kX3cEZkiiFdhIluZkQ4oYn2lblLAUx/f28SgILAydY2/gFXWaQ3O3SrW+xjSPrpUqEcNyMJrq+rUyHWeFu1HNUlI4Q== Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=nxp.com; Received: from VI0PR04MB12114.eurprd04.prod.outlook.com (2603:10a6:800:315::13) by AS8PR04MB8021.eurprd04.prod.outlook.com (2603:10a6:20b:2a7::21) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9723.19; Wed, 18 Mar 2026 06:29:13 +0000 Received: from VI0PR04MB12114.eurprd04.prod.outlook.com ([fe80::feda:fd0e:147f:f994]) by VI0PR04MB12114.eurprd04.prod.outlook.com ([fe80::feda:fd0e:147f:f994%5]) with mapi id 15.20.9723.018; Wed, 18 Mar 2026 06:29:13 +0000 From: Sherry Sun To: hongxing.zhu@nxp.com, l.stach@pengutronix.de, Frank.Li@nxp.com, bhelgaas@google.com, lpieralisi@kernel.org, kwilczynski@kernel.org, mani@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, s.hauer@pengutronix.de, festevam@gmail.com Cc: imx@lists.linux.dev, kernel@pengutronix.de, linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH V9 10/13] arm64: dts: imx8mp: Add Root Port node and PERST property Date: Wed, 18 Mar 2026 14:29:13 +0800 Message-Id: <20260318062916.2747472-11-sherry.sun@nxp.com> X-Mailer: git-send-email 2.37.1 In-Reply-To: <20260318062916.2747472-1-sherry.sun@nxp.com> References: <20260318062916.2747472-1-sherry.sun@nxp.com> Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: SI1PR02CA0011.apcprd02.prod.outlook.com (2603:1096:4:1f7::19) To VI0PR04MB12114.eurprd04.prod.outlook.com (2603:10a6:800:315::13) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: VI0PR04MB12114:EE_|AS8PR04MB8021:EE_ X-MS-Office365-Filtering-Correlation-Id: c1f43ed2-91c8-40eb-da28-08de84b7ac2a X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|52116014|1800799024|7416014|376014|19092799006|366016|921020|38350700014|56012099003|22082099003|18002099003; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:VI0PR04MB12114.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(52116014)(1800799024)(7416014)(376014)(19092799006)(366016)(921020)(38350700014)(56012099003)(22082099003)(18002099003);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?zCYvMbZZp+OJwnXo4MUSVq5e3GSZLoUzQwWvA/bXw51sOCZQirqSA+il0K/V?= =?us-ascii?Q?VpAIPb5IiaGhJnlL+3/eHHFh6LeenUxmIfQwsXuJINRMTJU3e8LzG8VC1hq8?= =?us-ascii?Q?f57tvq1h/a6JSM4gfK+NkulM0QFj++gEOzxFb3jjEux0mEZ++E7Dgzb3vlUR?= =?us-ascii?Q?zhOOQNRQ8WI/ooX2o9XxMa0o0rTVL/D3itqSvx/aoM0gy/vpRzrsMDHI98ux?= =?us-ascii?Q?tIELUm9x/2dcRFjFP/TdUv9i6Og33RJRewd24THaudxvwh0+vw8L1LRkPi0f?= =?us-ascii?Q?M2OcM4fdQbEtc+UgtDsKB3EWxB3OFJafrzK3/To9Tr58Uz7Ez7LdUlMnaVZc?= =?us-ascii?Q?2PFzrqI7DBkdpXssMiEcaR1JhvJZHq730aR8EsqfMlquXsgfco07WsvdJDao?= =?us-ascii?Q?jN2I1SOz6jWPg2txS7xaR7nTR3XLvRiAVj4EK8wMB1sLehIKaB+5cphTDu4M?= =?us-ascii?Q?JQ9tS+IWl63hKoWVLiqtW3tZHPT9aa+DRUB3kFOBF9Q4i/Ypr7t1+AoAUiN7?= =?us-ascii?Q?WRDDQ3CL3ZEKlwEaWShTQa/VBOglKKvgv8G3Gfr8dfBj37Z2gzwn2xP160FZ?= =?us-ascii?Q?OOHaddPcDIDJCMP/d74qfBfS9p0hHzdcNcmE3a1VLpWUBE0RYHwr6xgj7r2F?= =?us-ascii?Q?0rY9DU69CPbUEhCZJdvb0T0/d7YrrwYDJtFeYlN9DPQo4Uqipxi5k1Gh8iT9?= =?us-ascii?Q?pPue/fhgatZhQJtcMVHXRPogx/hUDprwh7bID8b+wE8xWgzF0kNjM7fjxF8w?= =?us-ascii?Q?r26lRx30ckPIhPXwhG3TYr+mra/DJTsEqOJ60xBb8uUcFM6xxeChCo46J2dE?= =?us-ascii?Q?0ckXOSUNfqrdbUaivbgmnLkRMWzapK+/kUb8+0qLmGrJG/IRT//DTMSdQoOb?= =?us-ascii?Q?/vMIfRQWiTAYRn8wrL+MI6j994GRb3Fht5rYXNA6cSLkPMKS2FL7del/86D4?= =?us-ascii?Q?kanc1G8lH0y7ftnIjgYp7hcS0dB1Vi75n+oFteZEtiDYoBo2nTbZtl0hkr44?= =?us-ascii?Q?xRWIoCTZwX9tZ8SbBt9y1tMgVYHAvc6eSxcpOi9bG2F59RJ6v4Gx2hhMwmvM?= =?us-ascii?Q?hJv+LIL9dcnUrjgnZexo46OPz9ciZ4vdmNBtQvrAtFcojO6w8VYcC3Q+xPH7?= =?us-ascii?Q?0A+LIdiyI8ebqPYKepcM/JHx4B3jYJLeio7dDQ7fOdbAhCBkLGk/UQlC7IXR?= =?us-ascii?Q?/3UJ0IUuwaTlCUt4AIoB0qNacojX53ShaUOgAVhwGxl7LVJTfi9DqMJhs/Cm?= =?us-ascii?Q?fnkWbuQsVx1bfJkDnki2wrEucKtLW6XF4VdqFSgTUnTB+eT5XKIYO79RhS2I?= =?us-ascii?Q?WvGSlO4JZDhzCN9oPAjG/oHE1iHSSAWe5vesL3HstAadqyK6TSMzOQex6jKM?= =?us-ascii?Q?w5TVeO5HMkHeADGkrQyqXbMD/JsrXcrYZGc4qSZ5EOUeCcgOCHdW/c1jzSbP?= =?us-ascii?Q?rvKdDeNDfni2goq0au5rHOa0u1Jkfe2K+PdsZ/AhoAOJB/QjW45bayRSGoKT?= =?us-ascii?Q?XWuydWdqn2DKYG9dYPWQUtXJf+RUyaZmMZXUpWg2hee/DZvDgkE9g285XE7/?= =?us-ascii?Q?sn9cxiqxOUBzz7E7xgl4PEfliq6uECBXmkOhXMrEwoUoI0P/HScVAEXujvaG?= =?us-ascii?Q?VAOKKG5Z0V3DDHHkexHKHfkYLggMZ7XxkaK9SiIurwNTAhtz/t7+b0GxbJP4?= =?us-ascii?Q?VVpFFuPOvdsyi7f+BW7xOPwisicZb152gj4v8edAz0iHbK/sVB7Hdv4FpB3E?= =?us-ascii?Q?3HqyYyys3g=3D=3D?= X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: c1f43ed2-91c8-40eb-da28-08de84b7ac2a X-MS-Exchange-CrossTenant-AuthSource: VI0PR04MB12114.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 18 Mar 2026 06:29:13.7982 (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: XI1SsvAhpkchCzHkyNtFoaXnfcKuZgBAihxo2Uun+S4kbIwKECj/nQjYWe2eCWHOSFYZj2n+XjNkiRel7Dvmlg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: AS8PR04MB8021 Content-Type: text/plain; charset="utf-8" Since describing the PCIe PERST# property under Host Bridge node is now deprecated, it is recommended to add it to the Root Port node, so creating the Root Port node and add the reset-gpios property in Root Port. Signed-off-by: Sherry Sun --- arch/arm64/boot/dts/freescale/imx8mp-evk.dts | 5 +++++ arch/arm64/boot/dts/freescale/imx8mp.dtsi | 11 +++++++++++ 2 files changed, 16 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts b/arch/arm64/boot= /dts/freescale/imx8mp-evk.dts index f09335e6388d..8290de52ec90 100644 --- a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts +++ b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts @@ -769,6 +769,7 @@ &pcie_phy { &pcie0 { pinctrl-names =3D "default"; pinctrl-0 =3D <&pinctrl_pcie0>; + /* This property is deprecated, use reset-gpios from the Root Port node. = */ reset-gpio =3D <&gpio2 7 GPIO_ACTIVE_LOW>; vpcie-supply =3D <®_pcie0>; vpcie3v3aux-supply =3D <®_pcie0>; @@ -782,6 +783,10 @@ &pcie0_ep { status =3D "disabled"; }; =20 +&pcie0_port0 { + reset-gpios =3D <&gpio2 7 GPIO_ACTIVE_LOW>; +}; + &pwm1 { pinctrl-names =3D "default"; pinctrl-0 =3D <&pinctrl_pwm1>; diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dt= s/freescale/imx8mp.dtsi index 9b2b3a9bf9e8..f66667735a02 100644 --- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi @@ -2266,6 +2266,17 @@ pcie0: pcie: pcie@33800000 { phys =3D <&pcie_phy>; phy-names =3D "pcie-phy"; status =3D "disabled"; + + pcie0_port0: pcie@0 { + compatible =3D "pciclass,0604"; + device_type =3D "pci"; + reg =3D <0x0 0x0 0x0 0x0 0x0>; + bus-range =3D <0x01 0xff>; + + #address-cells =3D <3>; + #size-cells =3D <2>; + ranges; + }; }; =20 pcie0_ep: pcie_ep: pcie-ep@33800000 { --=20 2.37.1