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

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Message-ID: <55df35f66eeb8580b21337e4b2738801117c125a.camel@gmail.com>
Date: Sun, 15 Jun 2025 00:34:24 +0200
From: Alexander Sverdlin <alexander.sverdlin@...il.com>
To: Andrew Lunn <andrew@...n.ch>
Cc: Inochi Amaoto <inochiama@...il.com>, Andrew Lunn
 <andrew+netdev@...n.ch>,  "David S. Miller" <davem@...emloft.net>, Eric
 Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Paolo
 Abeni <pabeni@...hat.com>, Rob Herring <robh@...nel.org>, Krzysztof
 Kozlowski	 <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, Chen
 Wang	 <unicorn_wang@...look.com>, Paul Walmsley <paul.walmsley@...ive.com>,
 Palmer Dabbelt <palmer@...belt.com>, Albert Ou <aou@...s.berkeley.edu>,
 Alexandre Ghiti <alex@...ti.fr>,  Richard Cochran
 <richardcochran@...il.com>, Yixun Lan <dlan@...too.org>, Thomas Bonnefille	
 <thomas.bonnefille@...tlin.com>, Ze Huang <huangze@...t.edu.cn>, 
	netdev@...r.kernel.org, devicetree@...r.kernel.org, sophgo@...ts.linux.dev,
 	linux-kernel@...r.kernel.org, linux-riscv@...ts.infradead.org, Longbin Li	
 <looong.bin@...il.com>
Subject: Re: [PATCH net-next RFC 0/3] riscv: dts: sophgo: Add ethernet
 support for cv18xx

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.

-- 
Alexander Sverdlin.