RE: [PATCH 2/2] ARM: bcm2835: dt: Add the ethernet to the device tree

[Peter Chen]

> Lubomir Rintel <lkundrak@xxxxx> writes:
> 
> > diff --git a/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts
> > b/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts
> > index ef54050..32bbd2a 100644
> > --- a/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts
> > +++ b/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts
> 
> Hi,
> 
> Shouldn't this be common to all RPi1 B and RPi2 models, instead of being
> specific to just RPi B+?
> 
> > +&usb {
> > +	usb1@01 {
> > +		compatible = "usb1d6b,0002";
> > +		reg = <01>;
> > +		#address-cells = <1>;
> > +		#size-cells = <0>;
> > +
> > +		ethernet: usbether@01 {
> > +			compatible = "usb0424,9514";
> > +			reg = <01>;
> > +		};
> > +	};
> > +};
> 
> For reference, on RPi2:

Using "lsusb -t" you may get bus topology.

> Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp. SMSC9512/9514 Fast Ethernet Adapter

It is the ethernet device, you may need to change vid/pid in dts. 

> Bus 001 Device 002: ID 0424:9514 Standard Microsystems Corp. SMC9514 Hub

It is the hub device, you may need to change vid/pid in dts.

> Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
> 
 
It is root hub, it doesn't need to be described at dts.

Best regards,
Peter