I was happy to read from "OpenWrt 22.03.0-rc6 Changelog" about
fix 506432alantiq: fix network port GPIO settings for Fritzbox 3390
and installed RC6.
But unfortunately ports LAN3 and LAN4 are still not working on my device.
LAN1 and LAN2 are fine.
The ports get link, but no traffic.
Maybe the log could help to find the reason:
root@OpenWrt-3390-1:~# dmesg | fgrep -i gswip
[ 1.156499] gswip 1e108000.switch: dsa switch register failed: -517
[ 1.646879] gswip 1e108000.switch lan3 (uninitialized): PHY [1e108000.switch-mii:00] driver [Qualcomm Atheros AR8035] (irq=POLL)
[ 1.736876] gswip 1e108000.switch lan4 (uninitialized): PHY [1e108000.switch-mii:01] driver [Qualcomm Atheros AR8035] (irq=POLL)
[ 1.752463] gswip 1e108000.switch lan2 (uninitialized): PHY [1e108000.switch-mii:11] driver [Intel XWAY PHY11G (xRX v1.2 integrated)] (irq=POLL)
[ 1.769285] gswip 1e108000.switch lan1 (uninitialized): PHY [1e108000.switch-mii:13] driver [Intel XWAY PHY11G (xRX v1.2 integrated)] (irq=POLL)
[ 1.785100] gswip 1e108000.switch: probed GSWIP version 21 mod 0
[ 7.972557] gswip 1e108000.switch lan1: configuring for phy/internal link mode
[ 10.036517] gswip 1e108000.switch lan1: Link is Up - 100Mbps/Full - flow control off
[ 12.873266] gswip 1e108000.switch lan1: Link is Down
[ 42.363896] gswip 1e108000.switch lan1: configuring for phy/internal link mode
[ 42.536323] gswip 1e108000.switch lan2: configuring for phy/internal link mode
[ 42.606378] gswip 1e108000.switch lan3: configuring for phy/rgmii link mode
[ 42.662572] gswip 1e108000.switch lan4: configuring for phy/rgmii link mode
[ 44.436862] gswip 1e108000.switch lan1: Link is Up - 100Mbps/Full - flow control off
[ 45.797108] gswip 1e108000.switch lan4: Link is Up - 1Gbps/Full - flow control rx/tx
[ 50.038844] gswip 1e108000.switch lan3: Link is Up - 100Mbps/Full - flow control rx/tx
[ 140.595299] gswip 1e108000.switch lan4: Link is Down
[ 143.475680] gswip 1e108000.switch lan2: Link is Up - 1Gbps/Full - flow control rx/tx
[ 386.446786] gswip 1e108000.switch lan3: Link is Down
[ 386.461715] gswip 1e108000.switch lan3: configuring for phy/rgmii link mode
[ 386.536387] gswip 1e108000.switch lan4: configuring for phy/rgmii link mode
[ 393.780406] gswip 1e108000.switch lan3: Link is Up - 100Mbps/Full - flow control rx/tx
[ 473.332904] gswip 1e108000.switch lan3: Link is Down
The problem with the Ethernet ports for the Fritzbox 3390 has been reported for a long time. The mentioned commit is rather correct, perhaps something else is the problem. Unfortunately, it was difficult to find a person who will be able to test the fix on the device. Can you open a new Issue on github?