[PATCH net-next RFC 0/3] riscv: dts: sophgo: Add ethernet support for cv18xx

[Inochi Amaoto]

On Sun, Jun 15, 2025 at 12:34:24AM +0200, Alexander Sverdlin wrote:
> Sorry for confusion Andrew,
> 
> On Sun, 2025-06-15 at 00:20 +0200, Andrew Lunn wrote:
> > > Also ethtool seems to be incompatible with mdio muxes :(
> > 
> > Please could you expand on that, because i don't know of a problem
> > with mdio muxes and ethtool.
> 
> everything seems to be fine with ethtool and mdio mux!
> (I accidentally mixed up host and target consoles)
> 
> # ethtool eth0
> Settings for eth0:
>         Supported ports: [ TP MII ]
>         Supported link modes:   10baseT/Half 10baseT/Full 
>                                 100baseT/Half 100baseT/Full 
>         Supported pause frame use: Symmetric Receive-only
>         Supports auto-negotiation: Yes
>         Supported FEC modes: Not reported
>         Advertised link modes:  10baseT/Half 10baseT/Full 
>                                 100baseT/Half 100baseT/Full 
>         Advertised pause frame use: Symmetric Receive-only
>         Advertised auto-negotiation: Yes
>         Advertised FEC modes: Not reported
>         Link partner advertised link modes:  10baseT/Half 10baseT/Full 
>                                              100baseT/Half 100baseT/Full 
>         Link partner advertised pause frame use: Symmetric Receive-only
>         Link partner advertised auto-negotiation: Yes
>         Link partner advertised FEC modes: Not reported
>         Speed: 100Mb/s
>         Duplex: Full
>         Port: MII
>         PHYAD: 0
>         Transceiver: external
>         Auto-negotiation: on
>         Supports Wake-on: d
>         Wake-on: d
>         Current message level: 0x0000003f (63)
>                                drv probe link timer ifdown ifup
>         Link detected: yes
> 
> But we do have some troubles with the internal PHY with Inochi's patches
> on SG2000, the above "Link detected: yes" is actually without cable
> inserted.
> 

Interesting, I have tested this on my Huashan Pi. The link detected
switch to "no" after I pull out the cable. I wonder the test step
on your board.

Regards,
Inochi