linux-kernel - Re: [PATCH v1 3/3] dt-bindings: net: sun8i-emac: Add AC300 EMAC1 nvmem phy selection

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CADvTj4oqjCkMeK0p8ZBa8PQmctc77hpiFK2pqgBJaxRFDgQoDQ@mail.gmail.com>
Date: Mon, 26 May 2025 15:32:03 -0600
From: James Hilliard <james.hilliard1@...il.com>
To: Andrew Lunn <andrew@...n.ch>
Cc: netdev@...r.kernel.org, linux-sunxi@...ts.linux.dev, 
	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-Yu Tsai <wens@...e.org>, Jernej Skrabec <jernej.skrabec@...il.com>, 
	Samuel Holland <samuel@...lland.org>, Maxime Ripard <mripard@...nel.org>, devicetree@...r.kernel.org, 
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1 3/3] dt-bindings: net: sun8i-emac: Add AC300 EMAC1
 nvmem phy selection

On Mon, May 26, 2025 at 1:36 PM Andrew Lunn <andrew@...n.ch> wrote:
>
> > +        phy-mode = "rgmii";
>
> Does the PCB have extra long clock lines?

I'm not sure, it's a copackaged(maybe on-die is the wrong terminology)
PHY I think so I assume the clock lines are internal, in the device specific
dts we set something like this on the emac1 node:
allwinner,rx-delay-ps = <3100>;
allwinner,tx-delay-ps = <700>;

There's some more info here on the AC300:
https://lore.kernel.org/lkml/20200416185758.1388148-1-jernej.skrabec@siol.net/

>
> https://elixir.bootlin.com/linux/v6.15/source/Documentation/devicetree/bindings/net/ethernet-controller.yaml#L287
>
>         Andrew