È stata una lunghissima giornata...
Ho ricompilato un migliaio di volte il firmware con varie combinazioni di pacchetti per fare alcuni test, preso dalla disperazione ho anche ri-flashato 14.07 ed appurato che tutte le porte dello switch funzionano, pingo in tutti i versi e il comando
swconfig list non restituisce nulla anche qui.
A quanto ho capito il driver per
ADM6996M viene caricato in automatico in quanto uso architettura
AR7?
https://dev.archive.openwrt.org/ticket/9057.html ma non so come verificarlo e cercando nel menu di compilazione non trovo nessuna voce a riguardo, ho solo trovato i sorgenti nella cartella della repo (qualcosa c'è ma non posso installarlo esplicitamente)

Nell'ultimo firmware ho installato
ethtool ed ho ottenuto questo
root@OpenWrt:~# ethtool eth0
Settings for eth0:
Supported ports: [ TP AUI BNC MII FIBRE ]
Supported link modes: 100baseT/Full
Supported pause frame use: No
Supports auto-negotiation: Yes
Supported FEC modes: Not reported
Advertised link modes: 100baseT/Full
Advertised pause frame use: No
Advertised auto-negotiation: Yes
Advertised FEC modes: Not reported
Link partner advertised link modes: 100baseT/Full
Link partner advertised pause frame use: No
Link partner advertised auto-negotiation: No
Link partner advertised FEC modes: Not reported
Speed: 100Mb/s
Duplex: Full
Port: MII
PHYAD: 1
Transceiver: internal
Auto-negotiation: on
Link detected: yes
root@OpenWrt:~# ethtool eth1
Settings for eth1:
Supported ports: [ TP AUI BNC MII FIBRE ]
Supported link modes: 100baseT/Full
Supported pause frame use: No
Supports auto-negotiation: Yes
Supported FEC modes: Not reported
Advertised link modes: 100baseT/Full
Advertised pause frame use: No
Advertised auto-negotiation: Yes
Advertised FEC modes: Not reported
Link partner advertised link modes: 100baseT/Full
Link partner advertised pause frame use: No
Link partner advertised auto-negotiation: No
Link partner advertised FEC modes: Not reported
Speed: 100Mb/s
Duplex: Full
Port: MII
PHYAD: 0
Transceiver: internal
Auto-negotiation: on
Link detected: yes
root@OpenWrt:~# ethtool wlan0
Settings for wlan0:
Link detected: yes
root@OpenWrt:~# ethtool eth0.1
Settings for eth0.1:
Supported ports: [ TP AUI BNC MII FIBRE ]
Supported link modes: 100baseT/Full
Supported pause frame use: No
Supports auto-negotiation: Yes
Supported FEC modes: Not reported
Advertised link modes: 100baseT/Full
Advertised pause frame use: No
Advertised auto-negotiation: Yes
Advertised FEC modes: Not reported
Link partner advertised link modes: 100baseT/Full
Link partner advertised pause frame use: No
Link partner advertised auto-negotiation: No
Link partner advertised FEC modes: Not reported
Speed: 100Mb/s
Duplex: Full
Port: MII
PHYAD: 1
Transceiver: internal
Auto-negotiation: on
Link detected: yesE la configurazione che sto utilizzando (presa pari pari da 14.07)
root@OpenWrt:/# cat /etc/config/network
config interface 'loopback'
option ifname 'lo'
option proto 'static'
option ipaddr '127.0.0.1'
option netmask '255.0.0.0'
config interface 'lan'
option type 'bridge'
option ifname 'eth0 eth1 eth0.1 eth0.2'
option proto 'static'
option ipaddr '192.168.1.1'
option netmask '255.255.255.0'
option nat '1'
option ip6assign '60'
config interface 'wan6'
option ifname '@wan'
option proto 'dhcpv6'
config globals 'globals'
option ula_prefix 'fd6f:41a7:754f::/48'
root@OpenWrt:/# ls -l /sys/class/net
lrwxrwxrwx 1 root root 0 Oct 1 11:58 br-lan -> ../../devices/virtual/net/br-lan
lrwxrwxrwx 1 root root 0 Jan 1 1970 eth0 -> ../../devices/virtual/net/eth0
lrwxrwxrwx 1 root root 0 Oct 1 11:58 eth0.1 -> ../../devices/virtual/net/eth0.1
lrwxrwxrwx 1 root root 0 Oct 1 11:58 eth0.2 -> ../../devices/virtual/net/eth0.2
lrwxrwxrwx 1 root root 0 Jan 1 1970 eth1 -> ../../devices/virtual/net/eth1
lrwxrwxrwx 1 root root 0 Jan 1 1970 lo -> ../../devices/virtual/net/lo
root@OpenWrt:/#Sembra che lo switch venga riconosciuto, ma continua a non funzionare.
Cambiando approccio sono riuscito ad attivare l'AP wifi e collegarmi a LuCI!!!!

In wifi pingo in tutte le direzioni e anche la shell SSH funziona.
Ho modo di verificare quali driver sono istallati? Se volessi installare a mano quel driver come posso fare se non c'è un pacchetto kmod già pronto?
Grazie a tutti.