=> mii device
MII devices: 'mdio@f00' 'ethernet@8000000port@1'
Current device: 'mdio@f00'
=> mii dump 0 0
Error reading from the PHY addr=00 reg=00

=> mii device ethernet@8000000port@1
=> mii dump 0 0
0.     (1140)                 -- PHY control register --
  (8000:0000) 0.15    =     0     reset
  (4000:0000) 0.14    =     0     loopback
  (2040:0040) 0. 6,13 =   b10    speed selection = 1000 Mbps
  (1000:1000) 0.12    =     1     A/N enable
  (0800:0000) 0.11    =     0     power-down
  (0400:0000) 0.10    =     0     isolate
  (0200:0000) 0. 9    =     0     restart A/N
  (0100:0100) 0. 8    =     1     duplex = full
  (0080:0000) 0. 7    =     0     collision test enable
  (003f:0000) 0. 5- 0 =     0     (reserved)


=> mii dump 0 1
1.     (796d)                 -- PHY status register --
  (8000:0000) 1.15    =     0     100BASE-T4 able
  (4000:4000) 1.14    =     1     100BASE-X  full duplex able
  (2000:2000) 1.13    =     1     100BASE-X  half duplex able
  (1000:1000) 1.12    =     1     10 Mbps    full duplex able
  (0800:0800) 1.11    =     1     10 Mbps    half duplex able
  (0400:0000) 1.10    =     0     100BASE-T2 full duplex able
  (0200:0000) 1. 9    =     0     100BASE-T2 half duplex able
  (0100:0100) 1. 8    =     1     extended status
  (0080:0000) 1. 7    =     0     (reserved)
  (0040:0040) 1. 6    =     1     MF preamble suppression
  (0020:0020) 1. 5    =     1     A/N complete
  (0010:0000) 1. 4    =     0     remote fault
  (0008:0008) 1. 3    =     1     A/N able
  (0004:0004) 1. 2    =     1     link status
  (0002:0000) 1. 1    =     0     jabber detect
  (0001:0001) 1. 0    =     1     extended capabilities


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