From: Jun Li <jun.li@nxp.com>
To: Rob Herring <robh@kernel.org>
Cc: "shawnguo@kernel.org" <shawnguo@kernel.org>,
"balbi@kernel.org" <balbi@kernel.org>,
"mathias.nyman@intel.com" <mathias.nyman@intel.com>,
"gregkh@linuxfoundation.org" <gregkh@linuxfoundation.org>,
"s.hauer@pengutronix.de" <s.hauer@pengutronix.de>,
"kernel@pengutronix.de" <kernel@pengutronix.de>,
"festevam@gmail.com" <festevam@gmail.com>,
dl-linux-imx <linux-imx@nxp.com>,
Anson Huang <anson.huang@nxp.com>,
Aisheng Dong <aisheng.dong@nxp.com>, Peng Fan <peng.fan@nxp.com>,
Andy Duan <fugang.duan@nxp.com>,
Joakim Zhang <qiangqing.zhang@nxp.com>,
Horia Geanta <horia.geanta@nxp.com>,
"linux-usb@vger.kernel.org" <linux-usb@vger.kernel.org>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>
Subject: RE: [PATCH v3 1/6] dt-bindings: usb: xhci: add property to disable xhci 64bit support
Date: Fri, 2 Oct 2020 16:39:07 +0000 [thread overview]
Message-ID: <VE1PR04MB65289A63097155D84736D64589310@VE1PR04MB6528.eurprd04.prod.outlook.com> (raw)
In-Reply-To: <20200929181108.GA885311@bogus>
Hi Rob,
> -----Original Message-----
> From: Rob Herring <robh@kernel.org>
> Sent: Wednesday, September 30, 2020 2:11 AM
> To: Jun Li <jun.li@nxp.com>
> Cc: shawnguo@kernel.org; balbi@kernel.org; mathias.nyman@intel.com;
> gregkh@linuxfoundation.org; s.hauer@pengutronix.de;
> kernel@pengutronix.de; festevam@gmail.com; dl-linux-imx
> <linux-imx@nxp.com>; Anson Huang <anson.huang@nxp.com>; Aisheng Dong
> <aisheng.dong@nxp.com>; Peng Fan <peng.fan@nxp.com>; Andy Duan
> <fugang.duan@nxp.com>; Joakim Zhang <qiangqing.zhang@nxp.com>; Horia
> Geanta <horia.geanta@nxp.com>; linux-usb@vger.kernel.org;
> devicetree@vger.kernel.org; linux-arm-kernel@lists.infradead.org
> Subject: Re: [PATCH v3 1/6] dt-bindings: usb: xhci: add property to disable
> xhci 64bit support
>
> 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.
Thanks, sent out v4 with dma-ranges property approach.
Li Jun
>
> > Signed-off-by: Li Jun <jun.li@nxp.com>
> > ---
> > 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
> >
next prev parent reply other threads:[~2020-10-02 16:39 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-22 10:46 [PATCH v3 0/6] add NXP imx8mp usb support Li Jun
2020-09-22 10:46 ` [PATCH v3 1/6] dt-bindings: usb: xhci: add property to disable xhci 64bit support Li Jun
2020-09-29 18:11 ` Rob Herring
2020-10-02 16:39 ` Jun Li [this message]
2020-09-22 10:46 ` [PATCH v3 2/6] usb: host: xhci-plat: add support of XHCI_NO_64BIT_SUPPORT via property Li Jun
2020-09-22 10:46 ` [PATCH v3 3/6] dt-bindings: usb: dwc3-imx8mp: add imx8mp dwc3 glue bindings Li Jun
2020-09-22 14:32 ` Krzysztof Kozlowski
2020-09-22 16:45 ` Jun Li
2020-09-22 18:22 ` Krzysztof Kozlowski
2020-09-22 10:46 ` [PATCH v3 4/6] usb: dwc3: add imx8mp dwc3 glue layer driver Li Jun
2020-09-22 10:46 ` [PATCH v3 5/6] arm64: dtsi: imx8mp: add usb nodes Li Jun
2020-09-22 14:39 ` Krzysztof Kozlowski
2020-09-23 7:50 ` Sascha Hauer
2020-09-23 8:49 ` Jun Li
2020-09-22 10:46 ` [PATCH v3 6/6] arm64: dts: imx8mp-evk: enable usb1 as host mode Li Jun
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