Re: [PATCH v2 3/4] arm: dts: Add USB phy nodes for AM33XX

[Sergei Shtylyov]

Hello.

On 07/19/2013 06:20 PM, Sebastian Andrzej Siewior wrote:

> > > diff --git a/arch/arm/boot/dts/am33xx.dtsi
> > > b/arch/arm/boot/dts/am33xx.dtsi
> > > index 8e1248f..e3890c4 100644
> > > --- a/arch/arm/boot/dts/am33xx.dtsi
> > > +++ b/arch/arm/boot/dts/am33xx.dtsi
> > > @@ -326,21 +326,59 @@
> > >                status = "disabled";
> > >            };
> > >
> > > -        usb@47400000 {
> > > -            compatible = "ti,musb-am33xx";
> > > -            reg = <0x47400000 0x1000    /* usbss */
> > > -                   0x47401000 0x800        /* musb instance 0 */
> > > -                   0x47401800 0x800>;    /* musb instance 1 */
> > > -            interrupts = <17        /* usbss */
> > > -                      18        /* musb instance 0 */
> > > -                      19>;        /* musb instance 1 */
> > > -            multipoint = <1>;
> > > -            num-eps = <16>;
> > > -            ram-bits = <12>;
> > > -            port0-mode = <3>;
> > > -            port1-mode = <3>;
> > > -            power = <250>;
> > > -            ti,hwmods = "usb_otg_hs";
> > > +        phy1: am335x-usb0@44e10620 {

> >     Shouldn't the PHYs be *under* the usb0/1 device nodes in the hierarchy?
> > They're not on the same bus as the MUSB controllers for sure.

> I redo the complete thing. I have now:

> usb: usb@47400000 {
> 	compatible = "ti,am33xx-usb";
> 	
> 	usb0_phy: phy@47401300 {
> 		compatible = "ti,am335x-usb-phy";
> 	}
> 	usb0: usb@47401000 {
> 		musb0: usb@47401400 {
> 			compatible = "mg,musbmhdrc";
> 		}
> 	}
> 	usb1_phy: phy@47402300 {
> 		compatible = "ti,am335x-usb-phy";
> 	}
> 	usb1: usb@47402000 {
> 		musb1: usb@47402400 {
> 			compatible = "mg,musbmhdrc";
> 		}
> 	}
> }

> And you want usb0_phy to be child of usb0? In the TRM they are all in
> the same block.

   Ah, the fact that PHYs didn't have the "reg" property got me muddled, I 
didn't pay attention to the address part of the node names... BTW, where is 
the "reg" prop? I see PHYs share the address space with 
"omap-control-usb@44e10620" device -- what's the point with this?

> Sebastian

WBR, Sergei

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