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Tue, 9 Jun 2020 11:23:37 +0000 From: Li Jun To: balbi@kernel.org, shawnguo@kernel.org Cc: gregkh@linuxfoundation.org, robh+dt@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com, linux-usb@vger.kernel.org, linux-arm-kernel@lists.infradead.org, peter.chen@nxp.com Subject: [PATCH 2/6] usb: host: xhci-plat: add quirk for XHCI_NO_64BIT_SUPPORT Date: Tue, 9 Jun 2020 19:12:41 +0800 Message-Id: <1591701165-12872-3-git-send-email-jun.li@nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1591701165-12872-1-git-send-email-jun.li@nxp.com> References: <1591701165-12872-1-git-send-email-jun.li@nxp.com> X-ClientProxiedBy: SG2PR02CA0069.apcprd02.prod.outlook.com (2603:1096:4:54::33) To VE1PR04MB6528.eurprd04.prod.outlook.com (2603:10a6:803:127::18) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from localhost.localdomain (119.31.174.66) by SG2PR02CA0069.apcprd02.prod.outlook.com (2603:1096:4:54::33) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) id 15.20.3066.18 via Frontend Transport; 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PTR:; CAT:NONE; SFTY:; SFS:(4636009)(366004)(8676002)(4326008)(8936002)(66556008)(66476007)(4744005)(5660300002)(66946007)(86362001)(16526019)(36756003)(498600001)(6506007)(69590400007)(2906002)(6512007)(26005)(2616005)(6486002)(956004)(52116002)(6666004)(186003); DIR:OUT; SFP:1101; X-MS-Exchange-AntiSpam-MessageData: naxa/der2HKEhyxheYmrOFYipNfsGKzeUcm4jvAsyGlfVaGjjZoZP0sMjEpIgN9JKKMKMMG8TXR0j8XcjvL2IKjxXyV/u3lY9SjQWgS5WYNAG79jPPikerhMjyZpG71c7n7NE8ZsamLkc/YsU4q3lCQJIdQFyBv4SijZH04NWBYaGC2n02+agH7seCu9svpH6cqV56tTcscdZ+/R30WT0b5cL90d4S+6gYqQLFOsw+pBjrY9muUCmMSNPodPhtzC5O+twBnbVF5DBIzFZtW5PRXiuDpNzz2Gt12GzENMkGrFYE7KOdq02HNED/rv5KwaMxi3yynM+AwKboOxFSPJn0DiAJx6bIJN6yyhg/lYPv+UaxPn1Zn8/LEsMEwTUYMwvgDFKODJix6qHkUGvtGnorn4MvgldrAVPwITdAdM9zOd2/DIv6+LR6yVsxYE617T3abUmeQGqOx6B2XPXNu7pJs34ExmI6GJtx95qrCF59U= X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: d673955a-6ebe-4096-0576-08d80c678dc2 X-MS-Exchange-CrossTenant-OriginalArrivalTime: 09 Jun 2020 11:23:37.6150 (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: jxWbxQx7mCXZ1vxaiYkXQHdJD7TOz1SsAiBTuH57YvzpzsR4MSN/b9wVzy2PvTgB X-MS-Exchange-Transport-CrossTenantHeadersStamped: VE1PR04MB6589 Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Some dwc3 based platforms may also have the problem AC64 bit (bit 0) of HCCPARAMS1 set to be 1 but the controller actually can't support 64-bit address when SoC integration, so enable XHCI_NO_64BIT_SUPPORT via dts property "snps,xhci-dis-64bit-support-quirk". Signed-off-by: Li Jun --- drivers/usb/host/xhci-plat.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c index 1d4f6f8..f782aea 100644 --- a/drivers/usb/host/xhci-plat.c +++ b/drivers/usb/host/xhci-plat.c @@ -290,6 +290,10 @@ static int xhci_plat_probe(struct platform_device *pdev) device_property_read_u32(tmpdev, "imod-interval-ns", &xhci->imod_interval); + + if (device_property_read_bool(tmpdev, + "snps,xhci-dis-64bit-support-quirk")) + xhci->quirks |= XHCI_NO_64BIT_SUPPORT; } hcd->usb_phy = devm_usb_get_phy_by_phandle(sysdev, "usb-phy", 0);