[PATCH 2/9] ARM: dts: i.MX51: Add a second usbphy.

[Peter Chen]

> > >
> > > diff --git a/arch/arm/boot/dts/imx51.dtsi
> > > b/arch/arm/boot/dts/imx51.dtsi index e508e6f..917b6ed 100644
> > > --- a/arch/arm/boot/dts/imx51.dtsi
> > > +++ b/arch/arm/boot/dts/imx51.dtsi
> > > @@ -100,6 +100,13 @@
> > >  			clocks = <&clks IMX5_CLK_USB_PHY_GATE>;
> > >  			clock-names = "main_clk";
> > >  		};
> > > +
> > > +		usbphy1: usbphy at 1 {
> > > +			compatible = "usb-nop-xceiv";
> > > +			reg = <1>;
> > > +			clocks = <&clks IMX5_CLK_USB_PHY_GATE>;
> > > +			clock-names = "main_clk";
> > > +		};
> >
> > Is this the ulpi phy for host1 controller? Why the clock is the same
> > with utmi phy clock for otg controller.
> 
> As far as I know, for i.MX51 this is as it should be.
> 

Are you sure? From clock file, they are different ccm clock gate.

> However, I doubt the usefulness of forcing "fsl,usbphy = <&usbphy1>"
> below.
> 

Yes, for ulpi phy, it should use ulpi phy driver (drivers/usb/phy/phy-ulpi.c),
not generic phy driver.

Peter