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Tue, 3 Mar 2020 01:59:22 +0000 From: peng.fan@nxp.com To: shawnguo@kernel.org, s.hauer@pengutronix.de, jassisinghbrar@gmail.com, o.rempel@pengutronix.de Cc: kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com, Anson.Huang@nxp.com, leonard.crestez@nxp.com, aisheng.dong@nxp.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Peng Fan Subject: [PATCH V4 1/4] dt-bindings: mailbox: imx-mu: add SCU MU support Date: Tue, 3 Mar 2020 09:52:57 +0800 Message-Id: <1583200380-15623-2-git-send-email-peng.fan@nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1583200380-15623-1-git-send-email-peng.fan@nxp.com> References: <1583200380-15623-1-git-send-email-peng.fan@nxp.com> Content-Type: text/plain X-ClientProxiedBy: SG2PR04CA0147.apcprd04.prod.outlook.com (2603:1096:3:16::31) To AM0PR04MB4481.eurprd04.prod.outlook.com (2603:10a6:208:70::15) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from localhost.localdomain (119.31.174.66) by SG2PR04CA0147.apcprd04.prod.outlook.com (2603:1096:3:16::31) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) id 15.20.2772.18 via Frontend Transport; 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X-Microsoft-Antispam-Message-Info: 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 X-MS-Exchange-AntiSpam-MessageData: jJfxCLEMr+eOibuBaqXtGQB/GvrScWNatq8hnQpH4i4duosxp4Z/PHyUHkPelkhx2TbJy5iP0un/7z3a5OSx4pzOTB0m4FhUWDbYbwvWINeV1ntHTMBNucyfr9qnKaKIq2n91oFEq0011beFpVVuYA== X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: ead3c55a-0ea8-4385-1680-08d7bf167dd5 X-MS-Exchange-CrossTenant-OriginalArrivalTime: 03 Mar 2020 01:59:22.1025 (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: renoiHUZ/zeE6ezYYwUo2gmAamOCV5NgDn2MMNc+UzFsahqdNeHHk7sLWzEnz3eXH4IE0pNLhvmlRn/VRIXMsg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM0PR04MB7057 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Peng Fan i.MX8/8X SCU MU is dedicated for communication between SCU and Cortex-A cores from hardware design, it could not be reused for other purpose. To use SCU MU more effectivly, add "fsl,imx8-scu-mu" compatile to support fast IPC. Signed-off-by: Peng Fan --- V4: None V3: New patch Documentation/devicetree/bindings/mailbox/fsl,mu.txt | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/devicetree/bindings/mailbox/fsl,mu.txt b/Documentation/devicetree/bindings/mailbox/fsl,mu.txt index 9c43357c5924..31486c9f6443 100644 --- a/Documentation/devicetree/bindings/mailbox/fsl,mu.txt +++ b/Documentation/devicetree/bindings/mailbox/fsl,mu.txt @@ -23,6 +23,8 @@ Required properties: be included together with SoC specific compatible. There is a version 1.0 MU on imx7ulp, use "fsl,imx7ulp-mu" compatible to support it. + To communicate with i.MX8 SCU, "fsl,imx8-mu-scu" could be + used for fast IPC - reg : Should contain the registers location and length - interrupts : Interrupt number. The interrupt specifier format depends on the interrupt controller parent. -- 2.16.4