| Message ID | 1591701165-12872-3-git-send-email-jun.li@nxp.com |
|---|---|
| State | Superseded |
| Headers | show
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Tue, 9 Jun 2020 11:23:37 +0000 From: Li Jun <jun.li@nxp.com> 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> Content-Type: text/plain 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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| Series |
add NXP imx8mp usb support
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expand
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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);
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 <jun.li@nxp.com> --- drivers/usb/host/xhci-plat.c | 4 ++++ 1 file changed, 4 insertions(+)