On Fri, Apr 22, 2022 at 03:35:03PM +0800, Ong Boon Leong wrote:
> Certain platform uses PHY-less configuration whereby the MAC controller
> is connected to network switch chip directly over SGMII or 1000BASE-X.
>
> This patch prepares the stmmac driver to support PHY-less configuration
> described above.
The normal way to do a PHY less setup is to use a fixed-PHY. It offers
the same API to the MAC as a real PHY but is fixed speed, dupex
etc. The MAC sees a PHY as usual, and you don't need anything special
in the MAC.
What you need to do is extend your DSD to list the fixed-link. See
https://www.kernel.org/doc/html/latest/firmware-guide/acpi/dsd/phy.html#mac-node-example-with-a-fixed-link-subnode
Andrew
>What you need to do is extend your DSD to list the fixed-link. See
>
>https://www.kernel.org/doc/html/latest/firmware-
>guide/acpi/dsd/phy.html#mac-node-example-with-a-fixed-link-subnode
>
Thanks for the feedback. I will explore with the BIOS supplier to the project
on this.