> -----Original Message-----
> From: Wood Scott-B07421
> Sent: Tuesday, December 02, 2014 6:40 AM
> On Fri, 2014-11-28 at 12:10 +0200, Madalin Bucur wrote:
> > Add the device tree binding document for the DPAA corenet node
> > and DPAA Ethernet nodes.
> >
> > Signed-off-by: Madalin Bucur <madalin.bucur@xxxxxxxxxxxxx>
> > ---
> > Documentation/devicetree/bindings/net/fsl-dpaa.txt | 31
> ++++++++++++++++++++++
> > 1 file changed, 31 insertions(+)
> > create mode 100644 Documentation/devicetree/bindings/net/fsl-dpaa.txt
> >
> > diff --git a/Documentation/devicetree/bindings/net/fsl-dpaa.txt
> b/Documentation/devicetree/bindings/net/fsl-dpaa.txt
> > new file mode 100644
> > index 0000000..822c668
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/net/fsl-dpaa.txt
> > @@ -0,0 +1,31 @@
> > +*DPAA corenet
> > +
> > +The corenet bus containing all DPAA Ethernet nodes.
>
> What does this have to do with corenet?
>
The corenet-generic platform code uses this compatible. Here are some excerpts
from the platform code found in SDK arch/powerpc/platforms/85xx/corenet_generic.c
...
* Corenet based SoC DS Setup
*
* Maintained by Kumar Gala (see MAINTAINERS for contact information)
*
* Copyright 2009-2011 Freescale Semiconductor Inc.
...
static const struct of_device_id of_device_ids[] = {
{
.compatible = "simple-bus"
},
{
.compatible = "fsl,dpaa"
},
...
int __init corenet_gen_publish_devices(void)
{
return of_platform_bus_probe(NULL, of_device_ids, NULL);
}
...
> > +Required property
> > + - compatible: string property. Must include "fsl,dpaa". Can include
> > + also "fsl,<SoC>-dpaa".
>
> No need for the <SoC> part. As we previously discussed, the only
> purpose of this node is backwards compatibility with the U-Boot MAC
> address fixup -- if U-Boot doesn't look for the <SoC> version, then
> don't complicate things.
>
> Though, I can't find where U-Boot references this node. Are you sure
> it's not using the ethernet%d aliases like everything else, in which
> case why do we need this node at all?
>
> -Scott
>
The initial (Freescale SDK) binding document contained those compatibles,
not sure what the initial intent was for the <SoC> variants.
The "fsl,dpaa" node is of interest to the DPAA Ethernet because it is
the parent of the "fsl,dpa-ethernet" nodes.
Madalin
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