[U-Boot] 答复: [PATCH v2 2/4] USB: host: Add the USB3 host driver

Sherry Sun sherry.sun at nxp.com
Thu Aug 15 05:54:14 UTC 2019


Hi Marek,
> 
> Hi Marek,
> 
> >
> > On 8/14/19 2:16 PM, sherry sun wrote:
> > > From: Sherry Sun <sherry.sun at nxp.com>
> > >
> > > Add the USB3 host driver for NXP imx8 platform, and the cadence IP
> > > is in it. The USB3 host driver support DM mode, it will probe USB3
> > > host node in dts.
> >
> > We already have a generic xhci driver, so why do we need that massive
> > custom cadence driver ?
> 
> Sorry, may I ask which generic xhci driver do you mean?

Actually, this xhci-imx8 driver only did some specific work, such as call phy 
driver, non-core registers configurate and so on. 
The generic xhci configurate work still done in xhci.c by calling xhci_register()
in xhci_imx8_probe(). So I think this specific driver is needed.

Best regards
Sherry sun

> 
> Best regards
> Sherry sun
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