* Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx> [170105 08:49]:
> On Thursday 05 Jan 2017 08:39:29 Tony Lindgren wrote:
> > * Rob Herring <robh@xxxxxxxxxx> [170105 08:28]:
> > > On Fri, Dec 2, 2016 at 3:11 PM, Laurent Pinchart wrote:
> > >> The Beagleboard-xM has a LAN9514 USB hub and ethernet controller,
> > >> connected to port 2 of the OMAP EHCI controller. The board however has
> > >> no EEPROM to store the ethernet MAC address, which is programmed by the
> > >> boot loader.
> > >>
> > >> To allow Linux to use the same MAC address as the boot loader (or for
> > >> that matter any fixed MAC address), we need a node in the device tree
> > >> for the ethernet controller that the boot loader can update at runtime
> > >> with a local-mac-address property. Add it, along with an alias for the
> > >> ethernet controller to let the boot loader locate it easily.
> > >>
> > >> Signed-off-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
> > >> ---
> > >> Changes since v1:
> > >>
> > >> - Renamed usb2 DT node to hub
> > >> ---
> > >>
> > >> arch/arm/boot/dts/omap3-beagle-xm.dts | 16 ++++++++++++++++
> > >> 1 file changed, 16 insertions(+)
> > >>
> > >> diff --git a/arch/arm/boot/dts/omap3-beagle-xm.dts
> > >> b/arch/arm/boot/dts/omap3-beagle-xm.dts index
> > >> 85e297ed0ea1..673cee2234b2 100644
> > >> --- a/arch/arm/boot/dts/omap3-beagle-xm.dts
> > >> +++ b/arch/arm/boot/dts/omap3-beagle-xm.dts
> > >> @@ -27,6 +27,7 @@
> > >> aliases {
> > >> display0 = &dvi0;
> > >> display1 = &tv0;
> > >> + ethernet = ðernet;
> > >
> > > Sorry, just noticed this, but this should be dropped. It's not used
> > > nor do we want an alias here.
> >
> > OK, will update locally as I have not pushed out yet.
>
> The ethernet alias is used by U-Boot to locate the ethernet controller and
> update the MAC address.
OK let's wait a bit on this one then.
Tony
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