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kernel.org; dmarc=none action=none header.from=nxp.com; Received: from VE1PR04MB6528.eurprd04.prod.outlook.com (2603:10a6:803:127::18) by VI1PR04MB4255.eurprd04.prod.outlook.com (2603:10a6:803:3f::13) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3412.20; Tue, 22 Sep 2020 10:54:14 +0000 Received: from VE1PR04MB6528.eurprd04.prod.outlook.com ([fe80::acd3:d354:3f34:3af7]) by VE1PR04MB6528.eurprd04.prod.outlook.com ([fe80::acd3:d354:3f34:3af7%4]) with mapi id 15.20.3391.025; Tue, 22 Sep 2020 10:54:14 +0000 From: Li Jun To: robh+dt@kernel.org, shawnguo@kernel.org, balbi@kernel.org, mathias.nyman@intel.com Cc: gregkh@linuxfoundation.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com, Anson.Huang@nxp.com, jun.li@nxp.com, aisheng.dong@nxp.com, peng.fan@nxp.com, fugang.duan@nxp.com, qiangqing.zhang@nxp.com, horia.geanta@nxp.com, linux-usb@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v3 1/6] dt-bindings: usb: xhci: add property to disable xhci 64bit support Date: Tue, 22 Sep 2020 18:46:47 +0800 Message-Id: <1600771612-30727-2-git-send-email-jun.li@nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1600771612-30727-1-git-send-email-jun.li@nxp.com> References: <1600771612-30727-1-git-send-email-jun.li@nxp.com> X-ClientProxiedBy: SG2PR0401CA0017.apcprd04.prod.outlook.com (2603:1096:3:1::27) To VE1PR04MB6528.eurprd04.prod.outlook.com (2603:10a6:803:127::18) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from 10.192.242.69 (119.31.174.66) by SG2PR0401CA0017.apcprd04.prod.outlook.com (2603:1096:3:1::27) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) id 15.20.3391.13 via Frontend Transport; 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DIR:OUT; SFP:1101; X-MS-Exchange-AntiSpam-MessageData: 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 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 8aef5c4d-91af-441a-896a-08d85ee5d805 X-MS-Exchange-CrossTenant-AuthSource: VE1PR04MB6528.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 22 Sep 2020 10:54:14.1996 (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: 02a7snJbpPgHcmKJ8eJJ0JlYfeEMfER0X/3rXvQw8CjR2idytee8Oc9qF+4p4hvF X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR04MB4255 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Add a property "xhci-64bit-support-disable" to disable xhci 64bit address dma, some SoC integration may not support 64bit DMA but the AC64 bit (bit 0) of HCCPARAMS1 is kept to be 1. Signed-off-by: Li Jun --- Documentation/devicetree/bindings/usb/usb-xhci.txt | 3 +++ 1 file changed, 3 insertions(+) diff --git a/Documentation/devicetree/bindings/usb/usb-xhci.txt b/Documentation/devicetree/bindings/usb/usb-xhci.txt index 0c5cff8..26446fb 100644 --- a/Documentation/devicetree/bindings/usb/usb-xhci.txt +++ b/Documentation/devicetree/bindings/usb/usb-xhci.txt @@ -28,6 +28,9 @@ Optional properties: - quirk-broken-port-ped: set if the controller has broken port disable mechanism - imod-interval-ns: default interrupt moderation interval is 5000ns - phys : see usb-hcd.yaml in the current directory + - xhci-64bit-support-disable: set if the AC64 bit (bit 0) of HCCPARAMS1 is + set to be 1, but the controller actually can't handle 64-bit address + due to SoC integration. additionally the properties from usb-hcd.yaml (in the current directory) are supported.