Looking for support of TP-Link EAP225 v4

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Hi,

I have tested the flashing procedure as described in this commit.
It worked as expected.

The PHY worked after a power cycle.
What's disappointing is that the PHY refused to work after a reboot.
What I have noted was the following line before connecting to the phy via MDIO.

[    6.767593] ag71xx: max retries for SGMII fixup exceeded

[    7.493274] mdio_bus mdio.0: MDIO device at address 4 is missing.
[    7.532477] ag71xx 19000000.eth: connected to PHY at mdio.0:06 [uid=001cc916, driver=RTL8211F Gigabit Ethernet]

The SGMII fixup retry takes nearly 6.5s instead of 1s. As I learned from the corresponding code, this fixup tries to reset the PHY, which does not work.

What I have tried so far

  • Removing reset-gpios from PHY@6.
  • Removing qca956x-serdes-fixup;
  • Combination of both
  • I tried with a 1 GBit Connection

In the datasheet of the PHY (RTL8211FS) there is a software reset possibility shown in Register 0.15 .
But I don't know if the soft reset would work in this state.