Re: Question: net: phy: realtek: RTL8211FS SGMII bridge mode support
From: Jacky Huang
Date: Fri Jul 10 2026 - 10:18:56 EST
Hi Maxime,
Thanks for the feedback! I had not considered the SFP or additional PHY case
before.
The hardware we plan to support has the SGMII side permanently connected to
an Ethernet switch.
MAC - RGMII - RTL8211FS - SGMII - Ethernet switch
The switch is initialized from a configuration EEPROM. There is no SFP or
separate PHY on the SGMII link.
I will take another look at how the SGMII-side status and in-band aneg should
be handled.
In addition, after reviewing the board-level strap design, I found that the
intended mode may not always be selected reliably, so I still need to consider
a strap-override flow.
Thanks again,
Jacky