Re: [PATCH net-next 1/2] dt-bindings: net: pcs: renesas,rzn1-miic: Add renesas,miic-phylink-active-low property

[Russell King (Oracle)]

On Thu, Nov 13, 2025 at 02:45:18PM +0000, Lad, Prabhakar wrote:
> Hi Wolfram,
> 
> On Wed, Nov 12, 2025 at 8:40 PM Wolfram Sang
> <wsa+renesas@xxxxxxxxxxxxxxxxxxxx> wrote:
> >
> > Hi Prabhakar,
> >
> > > Add the boolean DT property `renesas,miic-phylink-active-low` to the RZN1
> >
> > Hmm, we already have "renesas,ether-link-active-low" in
> > renesas,ether.yaml and renesas,etheravb.yaml. Can't we reuse that?
> >
> On the RZ/N1x we have the below architecture
> 
>                                                       +----> Ethernet Switch
>                                                       |           |
>                                                       |           v
>     MII Converter ----------------------+      GMAC (Synopsys IP)
>                                                       |
>                                                       +----> EtherCAT
> Slave Controller
>                                                       |
>                                                       +----> SERCOS
> Controller

I'm not sure that diagram has come out correctly. If you're going to
draw diagrams, make sure you do it using a fixed-width font. To me,
it looks like the MII Converter is bolted to GMAC and only has one
connection, and the GMAC has what seems to be maybe five connections.

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