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 3A074C28D13 for ; Mon, 22 Aug 2022 15:54:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=yWjEcPXbZKDS9LV/ZmXI/sgtVTqWTEZIFzOS1D1VELw=; b=aYSnkHKev3p8Cp fbPtyGmJzuCYnkUZzccWha9F7wQQYNIz3AIoRdUZVztmy//ImHoBuJ6XBkZ4nQTImmfRXYcLT9jxL a8lIGGuYQJ5d/TE8U5ZIDH4g30EvNh2yx1RjGxX/3ExCl0m6kS6kqgVzFfHjwimmaG9KZkcnHP16N IT3/tKBFr8TZAJi4pI1nKGcaGBH1xlT1La80bXhVb+yXnFQQykM4DbPbv0Tgj1ogs7IGUf1gRtE4x qtcDUmwKmyovzRrH1V9vL9BY7BfGgAozlHyFGV3pOsw+WDYNLEfqAMC1BGmp1OsVuNRjpytRUBHu6 YHKSsBryQSr77oZY36vQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1oQ9jT-00CQkp-Ty; Mon, 22 Aug 2022 15:52:56 +0000 Received: from mail-am6eur05on2068.outbound.protection.outlook.com ([40.107.22.68] helo=EUR05-AM6-obe.outbound.protection.outlook.com) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1oQ9ip-00CQTR-5y for linux-arm-kernel@lists.infradead.org; Mon, 22 Aug 2022 15:52:17 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=dmfr4+G85vc0xUPX9eUfhHZxKhYyei9Wlf+tRRdNQtiARpq9fTLKnH1q5nANLYWZxJJaBmTWl8JiBmbc3K3ZmyBvSa497ossLM6C9S1QN3GdkcN4NWhCTl3wYQHVYH3BZ78n9gITArRTzmAdk0yAbKWZQcvv6JxQE23pvJQ7nT9fbcBNNXs5PDLNgxn+nYZ7+MBujP09/rFA6pK+0qiCdDVhlL/6Pg16EVaFWofmcYXuJXzU0qnj6DTlGKlrQtZhbZWnfyj5iQpc9wwYmeCiSSfbIc3pMOQegSwOdRQVc4xhnN/Jm4w6+Um1OGlUnB0wO4oalVZZN0uAhx4Bdx+/Qw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; 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=OVFJJkHBYbxdRZKhWWlDd3nZUmM3IMXu087up/Kc5H4=; b=VLRGrUXZ7cty8qLpQ58Lz1gxziefCx4L6CH0EpYL5kZUdP0Nu2pXGcbHW3EmiKTWZoSiYqaBP223jeSVtSlFCUrgFI+hT9JJ8zNMRGWqdG/YNo99+anIdJq30qg/XwKo7i8swQ4+6MMTZXse9mh6JawmnlOL2z6zQY415xz2MobFcIzrlC2cNJLhwtJYkTCfRRiPynKkM3WHmV49WuKA5ovXOUCnQ8dDf31BZ7iutpI8Ymxlw5X1A5t4nP4Tp6MvNz35+yTvgdrmu+4k76MmLDmr6+caNUHLwYVtKMes88XaHcfE27vXRC2wl1T6ryAiiJ+a5idy9y9m7nQ+nRML8A== 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=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=OVFJJkHBYbxdRZKhWWlDd3nZUmM3IMXu087up/Kc5H4=; b=eVa5JAjvOO0BB62BQgwN4NAyFcjf5BkYH8blGf5dWuCbsGkl1YK/9k1w9Tpd5Jv4w47+zP5Y9VgVwB334ohr7K7sGbDvAYpPexUwpZC86r+CUU+4dw5Lybi2D/a3CP4ITXHSWN8jEmLgUiJ+uXdgEg44vbEEt8EDcqtaYrVPq3k= Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=nxp.com; Received: from PAXPR04MB9186.eurprd04.prod.outlook.com (2603:10a6:102:232::18) by AM5PR04MB3169.eurprd04.prod.outlook.com (2603:10a6:206:4::19) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5546.22; Mon, 22 Aug 2022 15:52:07 +0000 Received: from PAXPR04MB9186.eurprd04.prod.outlook.com ([fe80::85cb:614b:9f52:2dba]) by PAXPR04MB9186.eurprd04.prod.outlook.com ([fe80::85cb:614b:9f52:2dba%4]) with mapi id 15.20.5546.022; Mon, 22 Aug 2022 15:52:07 +0000 From: Frank Li To: maz@kernel.org, tglx@linutronix.de, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, shawnguo@kernel.org, s.hauer@pengutronix.de, kw@linux.com, bhelgaas@google.com Cc: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-pci@vger.kernel.org, peng.fan@nxp.com, aisheng.dong@nxp.com, jdmason@kudzu.us, kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com, kishon@ti.com, lorenzo.pieralisi@arm.com, ntb@lists.linux.dev, lznuaa@gmail.com Subject: [PATCH v7 3/4] dt-bindings: irqchip: imx mu work as msi controller Date: Mon, 22 Aug 2022 10:51:29 -0500 Message-Id: <20220822155130.2491006-4-Frank.Li@nxp.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220822155130.2491006-1-Frank.Li@nxp.com> References: <20220822155130.2491006-1-Frank.Li@nxp.com> X-ClientProxiedBy: SJ0PR13CA0038.namprd13.prod.outlook.com (2603:10b6:a03:2c2::13) To PAXPR04MB9186.eurprd04.prod.outlook.com (2603:10a6:102:232::18) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 3314034f-95f6-49fe-1d74-08da8456437f X-MS-TrafficTypeDiagnostic: AM5PR04MB3169:EE_ X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: p2fk2sK9Zsl4lqOhu/BssTXok6U7OeVWdaPH003TsyRRkED+SslZiK1rx10THfXIuGx+dZUJG896z0YS6U9LGb32Z2fdw2J1Z8SeOZiys2sMupaq16PLY+lfshHkYN1zK/ri4DUys2FMLkOxNwhgdte+MU9MGouqkxLHcYlWdBT3I1YFg+GQCu5dfpgsgQLClrAdR1R0Mhl6BfKF+OGuqg/CBsrpcShgODh/f7HAQjzK2f7I8TpaMYCnAZ98IXYZk7XcRsybCeYvWU0IUWCF+RuIkFDwBx01KKR0ACcn/cCZgdOVR5yDyRc+zQFYJiWkevA9YA9sX0K1GQtSn7r0L5xLFrh9qXRqzNuvIuh1IsAn77u6Lik2ZKQ4J795xa4jtXqqM/lnK7VIRPj94yO60Ux4KPJBwyXHLvlzWpWiCJm2fdtFTIj5hWk3WqaCo59JSHY7nF6+g9hB17iftdgdslbgSuXqrK1vsHSDZrC0+adBoTGQBZTwVp2nfPmS2z4i7R5uCfVjzSompo3wI/ez0qPQqlNtIX4J7lYsbjvGxnu0+ylS91iryGWpCcQBy6ysvMyg4nmVYF8JcG+Gr0acUX/X/9up8CGCFXRcTqRPR9zSPQ3eSVyI6BWSWQCH257yTGkYmjhJz3jgFDbB3wQTa//0dyCucSlpLRVCH/G0OBBgga0KHV706u7BiJhz1piDWFOo/1RoQ+TEUYYfDoAwlXBzDnLfNPEEJHDjE1aExCKHLTfZIZz9YL2Db5rvI5TKk/nk3VNiTkBx6foRyUaXS5DfpUnNN/J6xn51iJ4YE/2L7PL+TAaLZVOwqFOA4yFPFeBVCAOcyD8W1PD7W/os9A== X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:PAXPR04MB9186.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230016)(4636009)(346002)(39860400002)(366004)(136003)(396003)(376002)(316002)(86362001)(38100700002)(38350700002)(36756003)(41300700001)(83380400001)(26005)(6506007)(52116002)(6666004)(6486002)(966005)(6512007)(478600001)(2906002)(66946007)(66556008)(66476007)(1076003)(8936002)(5660300002)(8676002)(7416002)(2616005)(4326008)(186003);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?84H4grMEkJG+fpT2ntU3P4Sv0xC5tuDizY3MLdPnq2ZFOzl4ZcpKq/pJSHwn?= =?us-ascii?Q?bG6j24HefVizEnU82uPSCw2VoVqUojSldk4oYHvTcIfHjaT9GbK5DwCSvbSo?= =?us-ascii?Q?lnR8V3cMla0jXqzN8fHhS2ukUaxKHmYx8/Y6pNMy9wD+j+bIsvQTMtkiYKpg?= =?us-ascii?Q?XBRuXy0rLoQ+Ga0Y2A/cpN9oDh12lxQkJPApuXks0vAqWxZCbmzamx7bUW5g?= =?us-ascii?Q?tSVBL2Ga7ntCvUtaFLS1mo1kttvy6hLozmkeO8Wpm2oSOQ8JoGn/QKzMyNjr?= =?us-ascii?Q?rl0C1UfVTkbJ4LZcKRoqy6PKmtlLTFW/axAu1AfmQwUrxPDLY4+PXSvjnulI?= =?us-ascii?Q?Vm8T336P8YvEdhdYnI+VCfwa6lEDfNPBq0YNAsr8x0HE56FtQtGFedsnHqAy?= =?us-ascii?Q?+VJ/UnBBu7UmLgczxsrjpTo+OZcm5PP0ymXSIkSY4ejS4eW2dliwqrRKrQ3Y?= =?us-ascii?Q?irHENDvhUv1yFp6tAxd8Aqevs+hX4IRKKGZP6C0DRGnKhZfXjei4sKJeNBJg?= =?us-ascii?Q?jqPD//7JhQVoASG2Ts9ZRDvqN/NvOBS9TBtMdbgK++KD9e0/Ai+aO5mhg4Hx?= =?us-ascii?Q?b3M4LC1Dri1wDNMdfDvmrawr3PJbPs1Co8eh5kfH3J2lk1isfd4RUT9bbBLY?= =?us-ascii?Q?t26ylRZ2ctKzVLUCbMD9ZdteBhu+OoilqPrWPmDH3TQEos2MSe9sGcxreCCV?= =?us-ascii?Q?3XhmFjfTS9nm+c6+mJmsjjt3GA9nOwf8tFF/+ZmLUZXLNep42A5dpCggSidE?= =?us-ascii?Q?EterIqh0sSD+7oHOpc+HVNyBbkA+52FScDOBtE+MmrFUrgAmnvIOkZGazZW7?= =?us-ascii?Q?gVHHbM+n/OPu606WlskLoY5kQE9cxMArlvEN8+WiV4+WzGJEW8PsjkJTS0pX?= =?us-ascii?Q?csrCLA5oox/ZGbGbq/RXJpX+c+EmiHkLIQR6Ja0ElyZKZGlkUZMMHSy5bksK?= =?us-ascii?Q?e8rNtYBg1+sFFeRK/7g3u6tbi8FDwP+zIJpYLHYU4+Yyshtv5Z2y5+8DKG0O?= =?us-ascii?Q?hUclwA4vNKppsJTB/kt3yp2GAPHTY4MnhA+cIvxjLuJAesCS9ktxKe9mw0vY?= =?us-ascii?Q?Fta3J44vrzWTr5HQPvAl41dxhSNJ5NiA1NLgbLZK9L5hxGzcd82EskmrLnid?= =?us-ascii?Q?bUPB/Fr7Y3M9VtX751xqUHKizGx0ojLAPqBHcuYSRnN03HGjow3CkB193idv?= =?us-ascii?Q?krvTNb+upToa0nlDbpGPiBoZ5X8SPccWr820LMT3LBBJ9IdM+Mih0zM1MafY?= =?us-ascii?Q?7iNymRtpvPca2RzOgqFFDszRryEt9M3mO6pP1YddAIfHjHT2A4JalUNt+RoM?= =?us-ascii?Q?uwDINOXLW1tHRtrI0cqKcr/WwjzwS1pEJrr33q7pbPNOQh4WKmhQCb2njgjb?= =?us-ascii?Q?I66nmsMXUiVgX7HHqbPM/pqhcvAMYERC3d3jlddojKe4kW7qcwduhtoG5jhg?= =?us-ascii?Q?OM1irDoGxbLBGxl54N+KL2674P5XtcuQAnK1YqN0PEu3Ih3ybZKsdVy9q5q9?= =?us-ascii?Q?qE6CKFyxdvbmYegOFuDIvhxjGYLIuHlNKEDoYIgkl/EfzHCTcag0+kWOB6sF?= =?us-ascii?Q?5o+j9Cc79CV2V0QI7XTwErg7C1hnU1Ps7VpJt9FA?= X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 3314034f-95f6-49fe-1d74-08da8456437f X-MS-Exchange-CrossTenant-AuthSource: PAXPR04MB9186.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 22 Aug 2022 15:52:06.2522 (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: Zw6U8OVZVGWXjfcxMwRM7IiwDNEGuoL6mrc3BvJfOp5Oo3vU+/Y8Tf7zSDImaVzeZ97ya/AIlA/WPOVv8EnGuA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM5PR04MB3169 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220822_085215_329038_0E4DA0E8 X-CRM114-Status: GOOD ( 13.72 ) 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: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org I.MX mu support generate irq by write a register. Provide msi controller support so other driver such as PCI EP can use it by standard msi interface as doorbell. Signed-off-by: Frank Li --- .../interrupt-controller/fsl,mu-msi.yaml | 98 +++++++++++++++++++ 1 file changed, 98 insertions(+) create mode 100644 Documentation/devicetree/bindings/interrupt-controller/fsl,mu-msi.yaml diff --git a/Documentation/devicetree/bindings/interrupt-controller/fsl,mu-msi.yaml b/Documentation/devicetree/bindings/interrupt-controller/fsl,mu-msi.yaml new file mode 100644 index 0000000000000..ac07b138e24c0 --- /dev/null +++ b/Documentation/devicetree/bindings/interrupt-controller/fsl,mu-msi.yaml @@ -0,0 +1,98 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/interrupt-controller/fsl,mu-msi.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Freescale/NXP i.MX Messaging Unit (MU) work as msi controller + +maintainers: + - Frank Li + +description: | + The Messaging Unit module enables two processors within the SoC to + communicate and coordinate by passing messages (e.g. data, status + and control) through the MU interface. The MU also provides the ability + for one processor (A side) to signal the other processor (B side) using + interrupts. + + Because the MU manages the messaging between processors, the MU uses + different clocks (from each side of the different peripheral buses). + Therefore, the MU must synchronize the accesses from one side to the + other. The MU accomplishes synchronization using two sets of matching + registers (Processor A-facing, Processor B-facing). + + MU can work as msi interrupt controller to do doorbell + +allOf: + - $ref: /schemas/interrupt-controller/msi-controller.yaml# + +properties: + compatible: + enum: + - fsl,imx6sx-mu-msi + - fsl,imx7ulp-mu-msi + - fsl,imx8ulp-mu-msi + - fsl,imx8ulp-mu-msi-s4 + + reg: + items: + - description: a side register base address + - description: b side register base address + + reg-names: + items: + - const: processor a-facing + - const: processor b-facing + + interrupts: + description: a side interrupt number. + maxItems: 1 + + clocks: + maxItems: 1 + + power-domains: + items: + - description: a side power domain + - description: b side power domain + + power-domain-names: + items: + - const: processor a-facing + - const: processor b-facing + + interrupt-controller: true + + msi-controller: true + + "#msi-cells": + const: 0 + +required: + - compatible + - reg + - interrupts + - interrupt-controller + - msi-controller + +additionalProperties: false + +examples: + - | + #include + #include + + msi-controller@5d270000 { + compatible = "fsl,imx6sx-mu-msi"; + msi-controller; + #msi-cells = <0>; + interrupt-controller; + reg = <0x5d270000 0x10000>, /* A side */ + <0x5d300000 0x10000>; /* B side */ + reg-names = "processor a-facing", "processor b-facing"; + interrupts = ; + power-domains = <&pd IMX_SC_R_MU_12A>, + <&pd IMX_SC_R_MU_12B>; + power-domain-names = "processor a-facing", "processor b-facing"; + }; -- 2.35.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel