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[24.155.109.49]) by smtp.gmail.com with ESMTPSA id z10sm3055034ooz.14.2020.09.29.11.11.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 29 Sep 2020 11:11:09 -0700 (PDT) Received: (nullmailer pid 887368 invoked by uid 1000); Tue, 29 Sep 2020 18:11:08 -0000 Date: Tue, 29 Sep 2020 13:11:08 -0500 From: Rob Herring To: Li Jun Subject: Re: [PATCH v3 1/6] dt-bindings: usb: xhci: add property to disable xhci 64bit support Message-ID: <20200929181108.GA885311@bogus> References: <1600771612-30727-1-git-send-email-jun.li@nxp.com> <1600771612-30727-2-git-send-email-jun.li@nxp.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <1600771612-30727-2-git-send-email-jun.li@nxp.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200929_141111_605437_39316E80 X-CRM114-Status: GOOD ( 18.79 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: aisheng.dong@nxp.com, balbi@kernel.org, peng.fan@nxp.com, festevam@gmail.com, fugang.duan@nxp.com, Anson.Huang@nxp.com, mathias.nyman@intel.com, devicetree@vger.kernel.org, gregkh@linuxfoundation.org, s.hauer@pengutronix.de, linux-usb@vger.kernel.org, qiangqing.zhang@nxp.com, linux-imx@nxp.com, kernel@pengutronix.de, horia.geanta@nxp.com, shawnguo@kernel.org, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Tue, Sep 22, 2020 at 06:46:47PM +0800, Li Jun wrote: > 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. Use 'dma-ranges' for this. > 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. > -- > 2.7.4 > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel