[PATCH net-next 1/4] dt-bindings: net: ethernet-controller: update descriptions of RGMII modes
Russell King (Oracle)
linux at armlinux.org.uk
Tue Apr 22 01:41:55 PDT 2025
On Tue, Apr 15, 2025 at 05:25:23PM +0530, Siddharth Vadapalli wrote:
> For a fixed PHY,
No such thing in reality. The kernel has an obsolete idea of a fixed PHY
which is a software-emulated PHY to represent a fixed link, but that is
basically dead with phylink (there is now no PHY for fixed links under
phylink).
As I stated, "phy-mode" describes how the MAC needs to configure its
PHY facing interface, whether there is or is not a PHY present. One can
argue that it's misnamed, but it's buried in deep DT history going back
decades, and there's a rule that we don't break backwards compatibility.
--
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