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Wed, 26 Feb 2020 04:46:47 +0000 From: peng.fan@nxp.com To: shawnguo@kernel.org, s.hauer@pengutronix.de, jassisinghbrar@gmail.com, o.rempel@pengutronix.de, robh+dt@kernel.org 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 V3 1/4] dt-bindings: mailbox: imx-mu: add SCU MU support Date: Wed, 26 Feb 2020 12:40:40 +0800 Message-Id: <1582692043-683-2-git-send-email-peng.fan@nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1582692043-683-1-git-send-email-peng.fan@nxp.com> References: <1582692043-683-1-git-send-email-peng.fan@nxp.com> Content-Type: text/plain X-ClientProxiedBy: SG2PR06CA0135.apcprd06.prod.outlook.com (2603:1096:1:1f::13) 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 SG2PR06CA0135.apcprd06.prod.outlook.com (2603:1096:1:1f::13) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) id 15.20.2772.14 via Frontend Transport; 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X-Microsoft-Antispam-Message-Info: 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 X-MS-Exchange-AntiSpam-MessageData: SmZuh9uWhlr+XbpL9qbP5iuQawn1Yp+4B+TkOSAxj6vpmGpbWq2lTWRajhIZAuWhTbYcMEENSvo/lg7Z1+l7/w3R/h6ly6oBRe48d1+g9O+PU4Dq1fgjJkFg2WG313Vylw03y5ktO73SNq4WeZ7DXg== X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: a4a32344-1fe9-4c7e-8157-08d7ba76e2ca X-MS-Exchange-CrossTenant-OriginalArrivalTime: 26 Feb 2020 04:46:47.3182 (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: uefZZMkiza8RWRUkrdfJnebUbhZT7KSRaFGgMIpHRi8qG/npTm+GbvGZjdVtSo5GH8pqs+gLBxNK1+aFD0Ki7w== X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM0PR04MB4291 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 --- 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