[FS#296] Ubiquiti Bullet M 10/100 ethernet interface comes up as gigabit, doesn't work

[LEDE Bugs]

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FS#296 - Ubiquiti Bullet M 10/100 ethernet interface comes up as gigabit, doesn't work
User who did this - Lars (sumpfralle)

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I am just installed b1f5dd34ed84b295a67934a64d2ab309db65b65e on an Ubiquiti Nanostation M5 HP (XM).

Here I see the following output during boot:

[    1.631130] eth0: Atheros AG71xx at 0xb9000000, irq 4, mode:MII
[    2.312783] eth1: Atheros AG71xx at 0xba000000, irq 5, mode:GMII
[    5.006951] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[    7.070796] eth0: link up (100Mbps/Full duplex)
[    7.075396] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[   25.719656] eth0: link down
[   74.380702] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[   74.406151] br-on_eth_0: port 1(eth0.10) entered blocking state
[   74.412190] br-on_eth_0: port 1(eth0.10) entered disabled state
[   74.418692] device eth0.10 entered promiscuous mode
[   74.423657] device eth0 entered promiscuous mode
[   74.585241] br-on_eth_0: port 2(eth1) entered blocking state
[   74.591012] br-on_eth_0: port 2(eth1) entered disabled state
[   74.597241] device eth1 entered promiscuous mode
[   74.602071] br-on_eth_0: port 2(eth1) entered blocking state
[   74.607762] br-on_eth_0: port 2(eth1) entered forwarding state
[   75.409320] br-on_eth_0: port 2(eth1) entered disabled state
[   76.260402] eth1: link up (1000Mbps/Full duplex)
[   76.265110] br-on_eth_0: port 2(eth1) entered blocking state
[   76.270833] br-on_eth_0: port 2(eth1) entered forwarding state
[   76.430873] eth0: link up (100Mbps/Full duplex)
[   76.435474] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[   76.529338] br-on_eth_0: port 1(eth0.10) entered blocking state
[   76.535300] br-on_eth_0: port 1(eth0.10) entered forwarding state


The line [   76.260402] eth1: link up (1000Mbps/Full duplex) looks like the second port is still recognized as 1000 MBit/s?

btw.: "ethtool" shows 1000 MBit/s even for the first interface, while there is no output for eth1:

root at AP-1-110:~# ethtool eth0
Settings for eth0:
        Supported ports: [ TP MII ]
        Supported link modes:   10baseT/Half 10baseT/Full 
                                100baseT/Half 100baseT/Full 
                                1000baseT/Full 
        Supported pause frame use: No
        Supports auto-negotiation: Yes
        Advertised link modes:  10baseT/Half 10baseT/Full 
                                100baseT/Half 100baseT/Full 
                                1000baseT/Full 
[..]
root at AP-1-110:~# ethtool eth1
Settings for eth1:
Cannot get device settings: No such device
        Current message level: 0x000000ff (255)
                               drv probe link timer ifdown ifup rx_err tx_err
        Link detected: yes


But maybe I am mixing up different topics together.

Please correct me, if I misunderstand something. Thank you!
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More information can be found at the following URL:
https://bugs.openwrt.org/index.php?do=details&task_id=296#comment4651