Ethernet not working on a different SoC with same eth HW

Ethernet not working on a different SoC with same eth HW

[Mason]

Hello everyone,

I'm using these net drivers:

  drivers/net/ethernet/aurora/nb8800.c
  drivers/net/phy/at803x.c

With a smp8758 board, they work great.
I've been trying to use them on a different board:

  same eth PHY (Atheros AR8035)
  same eth MAC (Aurora SSN8800)
  different SoC (same base address for MAC block)

It doesn't work, and I'm not sure where to look first...
I put logs in some functions to get a rough idea.
When the kernel boots, it prints:

[    0.798912] libphy: mdiobus_read: addr=0 regnum=00000002 from get_phy_device
[    0.806515] libphy: mdiobus_read: addr=0 regnum=00000003 from get_phy_device
[    0.813704] libphy: mdiobus_read: addr=1 regnum=00000002 from get_phy_device
[    0.820923] libphy: mdiobus_read: addr=1 regnum=00000003 from get_phy_device
[    0.828192] libphy: mdiobus_read: addr=2 regnum=00000002 from get_phy_device
[    0.835373] libphy: mdiobus_read: addr=2 regnum=00000003 from get_phy_device
[    0.842547] libphy: mdiobus_read: addr=3 regnum=00000002 from get_phy_device
[    0.849681] libphy: mdiobus_read: addr=3 regnum=00000003 from get_phy_device
[    0.856814] libphy: mdiobus_read: addr=4 regnum=00000002 from get_phy_device
[    0.863944] libphy: mdiobus_read: addr=4 regnum=00000003 from get_phy_device
[    0.871075] libphy: mdiobus_read: addr=5 regnum=00000002 from get_phy_device
[    0.878202] libphy: mdiobus_read: addr=5 regnum=00000003 from get_phy_device
[    0.885331] libphy: mdiobus_read: addr=6 regnum=00000002 from get_phy_device
[    0.892458] libphy: mdiobus_read: addr=6 regnum=00000003 from get_phy_device
[    0.899586] libphy: mdiobus_read: addr=7 regnum=00000002 from get_phy_device
[    0.906715] libphy: mdiobus_read: addr=7 regnum=00000003 from get_phy_device
[    0.913844] libphy: mdiobus_read: addr=8 regnum=00000002 from get_phy_device
[    0.920972] libphy: mdiobus_read: addr=8 regnum=00000003 from get_phy_device
[    0.928101] libphy: mdiobus_read: addr=9 regnum=00000002 from get_phy_device
[    0.935230] libphy: mdiobus_read: addr=9 regnum=00000003 from get_phy_device
[    0.942359] libphy: mdiobus_read: addr=10 regnum=00000002 from get_phy_device
[    0.949576] libphy: mdiobus_read: addr=10 regnum=00000003 from get_phy_device
[    0.956793] libphy: mdiobus_read: addr=11 regnum=00000002 from get_phy_device
[    0.964009] libphy: mdiobus_read: addr=11 regnum=00000003 from get_phy_device
[    0.971225] libphy: mdiobus_read: addr=12 regnum=00000002 from get_phy_device
[    0.978441] libphy: mdiobus_read: addr=12 regnum=00000003 from get_phy_device
[    0.985657] libphy: mdiobus_read: addr=13 regnum=00000002 from get_phy_device
[    0.992873] libphy: mdiobus_read: addr=13 regnum=00000003 from get_phy_device
[    1.000089] libphy: mdiobus_read: addr=14 regnum=00000002 from get_phy_device
[    1.007305] libphy: mdiobus_read: addr=14 regnum=00000003 from get_phy_device
[    1.014522] libphy: mdiobus_read: addr=15 regnum=00000002 from get_phy_device
[    1.021737] libphy: mdiobus_read: addr=15 regnum=00000003 from get_phy_device
[    1.028953] libphy: mdiobus_read: addr=16 regnum=00000002 from get_phy_device
[    1.036169] libphy: mdiobus_read: addr=16 regnum=00000003 from get_phy_device
[    1.043385] libphy: mdiobus_read: addr=17 regnum=00000002 from get_phy_device
[    1.050600] libphy: mdiobus_read: addr=17 regnum=00000003 from get_phy_device
[    1.057817] libphy: mdiobus_read: addr=18 regnum=00000002 from get_phy_device
[    1.065032] libphy: mdiobus_read: addr=18 regnum=00000003 from get_phy_device
[    1.072250] libphy: mdiobus_read: addr=19 regnum=00000002 from get_phy_device
[    1.079464] libphy: mdiobus_read: addr=19 regnum=00000003 from get_phy_device
[    1.086679] libphy: mdiobus_read: addr=20 regnum=00000002 from get_phy_device
[    1.093895] libphy: mdiobus_read: addr=20 regnum=00000003 from get_phy_device
[    1.101111] libphy: mdiobus_read: addr=21 regnum=00000002 from get_phy_device
[    1.108327] libphy: mdiobus_read: addr=21 regnum=00000003 from get_phy_device
[    1.115542] libphy: mdiobus_read: addr=22 regnum=00000002 from get_phy_device
[    1.122757] libphy: mdiobus_read: addr=22 regnum=00000003 from get_phy_device
[    1.129973] libphy: mdiobus_read: addr=23 regnum=00000002 from get_phy_device
[    1.137189] libphy: mdiobus_read: addr=23 regnum=00000003 from get_phy_device
[    1.144405] libphy: mdiobus_read: addr=24 regnum=00000002 from get_phy_device
[    1.151620] libphy: mdiobus_read: addr=24 regnum=00000003 from get_phy_device
[    1.158835] libphy: mdiobus_read: addr=25 regnum=00000002 from get_phy_device
[    1.166050] libphy: mdiobus_read: addr=25 regnum=00000003 from get_phy_device
[    1.173266] libphy: mdiobus_read: addr=26 regnum=00000002 from get_phy_device
[    1.180481] libphy: mdiobus_read: addr=26 regnum=00000003 from get_phy_device
[    1.187697] libphy: mdiobus_read: addr=27 regnum=00000002 from get_phy_device
[    1.194911] libphy: mdiobus_read: addr=27 regnum=00000003 from get_phy_device
[    1.202127] libphy: mdiobus_read: addr=28 regnum=00000002 from get_phy_device
[    1.209341] libphy: mdiobus_read: addr=28 regnum=00000003 from get_phy_device
[    1.216557] libphy: mdiobus_read: addr=29 regnum=00000002 from get_phy_device
[    1.223771] libphy: mdiobus_read: addr=29 regnum=00000003 from get_phy_device
[    1.230987] libphy: mdiobus_read: addr=30 regnum=00000002 from get_phy_device
[    1.238203] libphy: mdiobus_read: addr=30 regnum=00000003 from get_phy_device
[    1.245419] libphy: mdiobus_read: addr=31 regnum=00000002 from get_phy_device
[    1.252635] libphy: mdiobus_read: addr=31 regnum=00000003 from get_phy_device
[    1.259840] libphy: Fixed MDIO Bus: probed
[    1.264606] [drivers/net/ethernet/aurora/nb8800.c:1455] nb8800_probe(): mark
[    1.272006] [drivers/net/ethernet/aurora/nb8800.c:1461] nb8800_probe(): mark
[    1.279218] [drivers/net/ethernet/aurora/nb8800.c:1469] nb8800_probe(): mark: 21
[    1.286799] [drivers/net/ethernet/aurora/nb8800.c:1379] nb8800_tangox_reset(): mark
[    1.294669] ++ETH w8 [f0026424] 00 from nb8800_probe
[    1.309789] ++ETH w8 [f0026424] 01 from nb8800_probe
[    1.314831] ++ETH w16 [f0026420] 0050 from nb8800_probe
[    1.320343] libphy: nb8800-mii: probed
[    1.324352] libphy: 1: [drivers/net/phy/phy_device.c:357] phy_device_create(): mark: cf9a89c0, -1, -1
[    1.342087] libphy: 1: [drivers/net/phy/phy_device.c:1601] phy_probe(): mark: -1, 1, 0
[    1.350406] libphy: 1: [drivers/net/phy/phy_device.c:1610] phy_probe(): mark: -1
[    1.357990] ++ETH w8 [f0026000] 1c from platform_drv_probe
[    1.363591] ++ETH w8 [f0026001] 05 from platform_drv_probe
[    1.369203] ++ETH w8 [f0026004] 22 from platform_drv_probe
[    1.374799] ++ETH w8 [f0026008] 04 from platform_drv_probe
[    1.380390] ++ETH w8 [f0026014] 0c from platform_drv_probe
[    1.385947] ++ETH w8 [f0026051] 00 from platform_drv_probe
[    1.391500] ++ETH w8 [f0026052] ff from platform_drv_probe
[    1.397051] ++ETH w8 [f0026054] 40 from platform_drv_probe
[    1.402602] ++ETH r32 [f0026100] 00000008 from platform_drv_probe
[    1.408767] ++ETH w32 [f0026100] 000002fe from platform_drv_probe
[    1.414933] ++ETH w32 [f0026118] 003cc4a4 from platform_drv_probe
[    1.421196] ++ETH r32 [f0026200] 00000008 from platform_drv_probe
[    1.427367] ++ETH w32 [f0026200] 000002fe from platform_drv_probe
[    1.433535] ++ETH w32 [f0026218] 00004dc8 from platform_drv_probe
[    1.439699] ++ETH w8 [f0026060] 00 from platform_drv_probe
[    1.445252] ++ETH w8 [f0026061] c3 from platform_drv_probe
[    1.450806] ++ETH w8 [f002602e] 00 from nb8800_probe
[    1.455832] [drivers/net/ethernet/aurora/nb8800.c:1403] nb8800_tango4_init(): mark
[    1.463476] [drivers/net/ethernet/aurora/nb8800.c:1347] nb8800_tangox_init(): mark
[    1.471127] ++ETH w8 [f0026400] 01 from nb8800_tango4_init
[    1.476679] ++ETH r32 [f0026200] 000002fe from nb8800_probe
[    1.482317] ++ETH w32 [f0026200] 0000028e from nb8800_probe
[    1.487961] ++ETH w8 [f002606a] 00 from nb8800_probe
[    1.492988] ++ETH w8 [f002606b] 16 from nb8800_probe
[    1.498015] ++ETH w8 [f002606c] e8 from nb8800_probe
[    1.503039] ++ETH w8 [f002606d] 46 from nb8800_probe
[    1.508063] ++ETH w8 [f002606e] 98 from nb8800_probe
[    1.513088] ++ETH w8 [f002606f] 50 from nb8800_probe
[    1.518114] ++ETH w8 [f002603c] 00 from nb8800_probe
[    1.523140] ++ETH w8 [f002603d] 16 from nb8800_probe
[    1.528165] ++ETH w8 [f002603e] e8 from nb8800_probe
[    1.533190] ++ETH w8 [f002603f] 46 from nb8800_probe
[    1.538216] ++ETH w8 [f0026040] 98 from nb8800_probe
[    1.543241] ++ETH w8 [f0026041] 50 from nb8800_probe
[    1.549468] nb8800 26000.ethernet eth0: MAC address 00:16:e8:46:98:50

which looks alright, I suppose.

Then I configure the address, and set link up:

ip addr add 10.10.7.81/24 dev eth0
ip link set eth0 up


[  224.524920] [drivers/net/ethernet/aurora/nb8800.c:1011] nb8800_open(): mark
[  224.532055] ++ETH w32 [f0026204] 0000000f from __dev_open
[  224.538052] ++ETH w32 [f0026104] 0000000f from __dev_open
[  224.545223] ++ETH w32 [f002620c] 8fbfa000 from nb8800_open
[  224.550933] ++ETH r8 [f0026004] 22 from nb8800_open
[  224.556175] ++ETH w8 [f0026004] 23 from nb8800_open
[  224.561316] ++ETH r32 [f0026100] 000002fe from nb8800_open
[  224.567062] ++ETH r8 [f0026000] 1c from nb8800_open
[  224.572194] ++ETH w8 [f0026000] 1d from nb8800_open
[  224.577327] libphy: 1: [drivers/net/phy/phy_device.c:694] phy_connect_direct(): mark
[  224.585345] libphy: 1: [drivers/net/phy/phy_device.c:1420] genphy_soft_reset(): mark
[  224.593368] ++ETH w32 [f0026020] 04808000 from nb8800_mdio_write
[  224.599650] ++ETH w32 [f0026020] 84808000 from nb8800_mdio_write
[  224.605954] libphy: 1: [drivers/net/phy/phy_device.c:792] phy_poll_reset(): mark
[  224.664206] libphy: mdiobus_read: addr=4 regnum=00000000 from genphy_soft_reset
[  224.671606] nb8800_mdio_read from mdiobus_read
[  224.676394] ++ETH w32 [f0026020] 00800000 from nb8800_mdio_read
[  224.682589] ++ETH w32 [f0026020] 80800000 from nb8800_mdio_read
[  224.688812] ++ETH r32 [f0026024] 00000000 from mdiobus_read
[  224.700863] 1: [drivers/net/phy/at803x.c:311] at803x_config_init(): mark
[  224.707647] libphy: 1: [drivers/net/phy/phy_device.c:1435] genphy_config_init(): mark
[  224.715847] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_config_init
[  224.723515] nb8800_mdio_read from mdiobus_read
[  224.728216] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  224.734412] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  224.740633] ++ETH r32 [f0026024] 00007949 from mdiobus_read
[  224.746472] libphy: mdiobus_read: addr=4 regnum=0000000f from genphy_config_init
[  224.754137] nb8800_mdio_read from mdiobus_read
[  224.758836] ++ETH w32 [f0026020] 008f0000 from nb8800_mdio_read
[  224.765033] ++ETH w32 [f0026020] 808f0000 from nb8800_mdio_read
[  224.771255] ++ETH r32 [f0026024] 0000a000 from mdiobus_read
[  224.777088] libphy: mdiobus_read: addr=4 regnum=00000000 from at803x_resume
[  224.784338] nb8800_mdio_read from mdiobus_read
[  224.789035] ++ETH w32 [f0026020] 00800000 from nb8800_mdio_read
[  224.795226] ++ETH w32 [f0026020] 80800000 from nb8800_mdio_read
[  224.801448] ++ETH r32 [f0026024] 00000000 from mdiobus_read
[  224.807281] ++ETH w32 [f0026020] 04800000 from nb8800_mdio_write
[  224.813561] ++ETH w32 [f0026020] 84800000 from nb8800_mdio_write
[  224.819865] libphy: 1: [drivers/net/phy/phy.c:625] phy_start_machine(): mark
[  224.827208] libphy: 1: [drivers/net/phy/phy.c:942] phy_state_machine(): mark: 0, 2
[  224.835055] ++ETH r32 [f0026200] 0000028e from nb8800_open
[  224.835069] ++ETH w32 [f0026200] 0000028f from nb8800_open
[  224.835086] ++ETH r8 [f0026004] 23 from nb8800_set_rx_mode
[  224.835098] ++ETH w8 [f002602e] 00 from nb8800_set_rx_mode
[  224.835173] ++ETH r8 [f0026004] 23 from nb8800_set_rx_mode
[  224.835185] ++ETH w8 [f002602e] 00 from nb8800_set_rx_mode
[  224.835207] ++ETH w8 [f0026028] 01 from __dev_set_rx_mode
[  224.835221] ++ETH w8 [f0026029] 00 from __dev_set_rx_mode
[  224.835234] ++ETH w8 [f002602a] 5e from __dev_set_rx_mode
[  224.835247] ++ETH w8 [f002602b] 00 from __dev_set_rx_mode
[  224.835259] ++ETH w8 [f002602c] 00 from __dev_set_rx_mode
[  224.835272] ++ETH w8 [f002602d] 01 from __dev_set_rx_mode
[  224.835284] ++ETH w8 [f002602e] ff from nb8800_set_rx_mode
[  224.909895] libphy: 1: [drivers/net/phy/phy_device.c:1195] genphy_config_aneg(): mark
[  224.919140] libphy: mdiobus_read: addr=4 regnum=00000004 from genphy_config_aneg
[  224.926818] nb8800_mdio_read from mdiobus_read
[  224.931540] ++ETH w32 [f0026020] 00840000 from nb8800_mdio_read
[  224.937738] ++ETH w32 [f0026020] 80840000 from nb8800_mdio_read
[  224.943960] ++ETH r32 [f0026024] 000011e1 from mdiobus_read
[  224.949795] ++ETH w32 [f0026020] 048415e1 from nb8800_mdio_write
[  224.956077] ++ETH w32 [f0026020] 848415e1 from nb8800_mdio_write
[  224.962396] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_config_aneg
[  224.970060] nb8800_mdio_read from mdiobus_read
[  224.974758] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  224.980981] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  224.987204] ++ETH r32 [f0026024] 00007949 from mdiobus_read
[  224.993041] libphy: mdiobus_read: addr=4 regnum=00000009 from genphy_config_aneg
[  225.000706] nb8800_mdio_read from mdiobus_read
[  225.005404] ++ETH w32 [f0026020] 00890000 from nb8800_mdio_read
[  225.011597] ++ETH w32 [f0026020] 80890000 from nb8800_mdio_read
[  225.017822] ++ETH r32 [f0026024] 00000300 from mdiobus_read
[  225.023655] ++ETH w32 [f0026020] 04890200 from nb8800_mdio_write
[  225.029934] ++ETH w32 [f0026020] 84890200 from nb8800_mdio_write
[  225.036250] libphy: mdiobus_read: addr=4 regnum=00000000 from genphy_restart_aneg
[  225.044002] nb8800_mdio_read from mdiobus_read
[  225.048700] ++ETH w32 [f0026020] 00800000 from nb8800_mdio_read
[  225.054892] ++ETH w32 [f0026020] 80800000 from nb8800_mdio_read
[  225.061113] ++ETH r32 [f0026024] 00000000 from mdiobus_read
[  225.066948] ++ETH w32 [f0026020] 04801200 from nb8800_mdio_write
[  225.073301] ++ETH w32 [f0026020] 84801200 from nb8800_mdio_write
[  225.079656] libphy: 1: [drivers/net/phy/phy.c:942] phy_state_machine(): mark: 0, 5
[  225.087602] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  225.095270] nb8800_mdio_read from mdiobus_read
[  225.099969] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  225.106164] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  225.112385] ++ETH r32 [f0026024] 00007949 from mdiobus_read
[  225.118223] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  225.125887] nb8800_mdio_read from mdiobus_read
[  225.130584] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  225.136776] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  225.142997] ++ETH r32 [f0026024] 00007949 from mdiobus_read
[  225.148837] libphy: mdiobus_read: addr=4 regnum=0000000a from genphy_read_status
[  225.156504] nb8800_mdio_read from mdiobus_read
[  225.161220] ++ETH w32 [f0026020] 008a0000 from nb8800_mdio_read
[  225.167412] ++ETH w32 [f0026020] 808a0000 from nb8800_mdio_read
[  225.173633] ++ETH r32 [f0026024] 00000000 from mdiobus_read
[  225.179471] libphy: mdiobus_read: addr=4 regnum=00000009 from genphy_read_status
[  225.187135] nb8800_mdio_read from mdiobus_read
[  225.191833] ++ETH w32 [f0026020] 00890000 from nb8800_mdio_read
[  225.198025] ++ETH w32 [f0026020] 80890000 from nb8800_mdio_read
[  225.204279] ++ETH r32 [f0026024] 00000200 from mdiobus_read
[  225.210116] libphy: mdiobus_read: addr=4 regnum=00000005 from genphy_read_status
[  225.217781] nb8800_mdio_read from mdiobus_read
[  225.222478] ++ETH w32 [f0026020] 00850000 from nb8800_mdio_read
[  225.228673] ++ETH w32 [f0026020] 80850000 from nb8800_mdio_read
[  225.234893] ++ETH r32 [f0026024] 00000000 from mdiobus_read
[  225.240731] libphy: mdiobus_read: addr=4 regnum=00000004 from genphy_read_status
[  225.248396] nb8800_mdio_read from mdiobus_read
[  225.253093] ++ETH w32 [f0026020] 00840000 from nb8800_mdio_read
[  225.259286] ++ETH w32 [f0026020] 80840000 from nb8800_mdio_read
[  225.265506] ++ETH r32 [f0026024] 000015e1 from mdiobus_read
[  225.271333] libphy: 1: [drivers/net/phy/phy.c:974] phy_state_machine(): mark
[  225.278644] [drivers/net/ethernet/aurora/nb8800.c: 722] nb8800_link_reconfigure(): mark
[  225.286924] libphy: 1: [drivers/net/phy/phy.c:942] phy_state_machine(): mark: 0, 7
[  225.294777] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  225.302441] nb8800_mdio_read from mdiobus_read
[  225.307139] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  225.313331] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  225.319549] ++ETH r32 [f0026024] 00007949 from mdiobus_read
[  225.325387] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  225.333050] nb8800_mdio_read from mdiobus_read
[  225.337751] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  225.343940] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  225.350164] ++ETH r32 [f0026024] 00007949 from mdiobus_read
[  225.356003] libphy: mdiobus_read: addr=4 regnum=0000000a from genphy_read_status
[  225.363667] nb8800_mdio_read from mdiobus_read
[  225.368364] ++ETH w32 [f0026020] 008a0000 from nb8800_mdio_read
[  225.374558] ++ETH w32 [f0026020] 808a0000 from nb8800_mdio_read
[  225.380777] ++ETH r32 [f0026024] 00000000 from mdiobus_read
[  225.386630] libphy: mdiobus_read: addr=4 regnum=00000009 from genphy_read_status
[  225.394319] nb8800_mdio_read from mdiobus_read
[  225.399014] ++ETH w32 [f0026020] 00890000 from nb8800_mdio_read
[  225.405207] ++ETH w32 [f0026020] 80890000 from nb8800_mdio_read
[  225.411428] ++ETH r32 [f0026024] 00000200 from mdiobus_read
[  225.417265] libphy: mdiobus_read: addr=4 regnum=00000005 from genphy_read_status
[  225.424936] nb8800_mdio_read from mdiobus_read
[  225.429635] ++ETH w32 [f0026020] 00850000 from nb8800_mdio_read
[  225.435827] ++ETH w32 [f0026020] 80850000 from nb8800_mdio_read
[  225.442049] ++ETH r32 [f0026024] 00000000 from mdiobus_read
[  225.447887] libphy: mdiobus_read: addr=4 regnum=00000004 from genphy_read_status
[  225.455549] nb8800_mdio_read from mdiobus_read
[  225.460247] ++ETH w32 [f0026020] 00840000 from nb8800_mdio_read
[  225.466438] ++ETH w32 [f0026020] 80840000 from nb8800_mdio_read
[  225.472658] ++ETH r32 [f0026024] 000015e1 from mdiobus_read
[  225.478560] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  225.486232] nb8800_mdio_read from mdiobus_read
[  225.490961] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  225.497153] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  225.503375] ++ETH r32 [f0026024] 00007949 from mdiobus_read
[  225.509212] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  225.516874] nb8800_mdio_read from mdiobus_read
[  225.521571] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  225.527763] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  225.533985] ++ETH r32 [f0026024] 00007949 from mdiobus_read
[  225.539824] libphy: mdiobus_read: addr=4 regnum=0000000a from genphy_read_status
[  225.547538] nb8800_mdio_read from mdiobus_read
[  225.552057] ++ETH w32 [f0026020] 008a0000 from nb8800_mdio_read
[  225.558332] ++ETH w32 [f0026020] 808a0000 from nb8800_mdio_read
[  225.564554] ++ETH r32 [f0026024] 00000000 from mdiobus_read
[  225.570393] libphy: mdiobus_read: addr=4 regnum=00000009 from genphy_read_status
[  225.578058] nb8800_mdio_read from mdiobus_read
[  225.582756] ++ETH w32 [f0026020] 00890000 from nb8800_mdio_read
[  225.588947] ++ETH w32 [f0026020] 80890000 from nb8800_mdio_read
[  225.595168] ++ETH r32 [f0026024] 00000200 from mdiobus_read
[  225.601020] libphy: mdiobus_read: addr=4 regnum=00000005 from genphy_read_status
[  225.608684] nb8800_mdio_read from mdiobus_read
[  225.613400] ++ETH w32 [f0026020] 00850000 from nb8800_mdio_read
[  225.619594] ++ETH w32 [f0026020] 80850000 from nb8800_mdio_read
[  225.625816] ++ETH r32 [f0026024] 00000000 from mdiobus_read
[  225.631654] libphy: mdiobus_read: addr=4 regnum=00000004 from genphy_read_status
[  225.639316] nb8800_mdio_read from mdiobus_read
[  225.644014] ++ETH w32 [f0026020] 00840000 from nb8800_mdio_read
[  225.650208] ++ETH w32 [f0026020] 80840000 from nb8800_mdio_read
[  225.656430] ++ETH r32 [f0026024] 000015e1 from mdiobus_read
[  225.662288] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  225.669953] nb8800_mdio_read from mdiobus_read
[  225.674651] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  225.680873] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  225.687089] ++ETH r32 [f0026024] 00007949 from mdiobus_read
[  225.692927] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  225.700589] nb8800_mdio_read from mdiobus_read
[  225.705288] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  225.711480] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  225.717738] ++ETH r32 [f0026024] 00007949 from mdiobus_read
[  225.723576] libphy: mdiobus_read: addr=4 regnum=0000000a from genphy_read_status
[  225.731243] nb8800_mdio_read from mdiobus_read
[  225.735943] ++ETH w32 [f0026020] 008a0000 from nb8800_mdio_read
[  225.742136] ++ETH w32 [f0026020] 808a0000 from nb8800_mdio_read
[  225.748356] ++ETH r32 [f0026024] 00000000 from mdiobus_read
[  225.754225] libphy: mdiobus_read: addr=4 regnum=00000009 from genphy_read_status
[  225.761888] nb8800_mdio_read from mdiobus_read
[  225.766586] ++ETH w32 [f0026020] 00890000 from nb8800_mdio_read
[  225.772778] ++ETH w32 [f0026020] 80890000 from nb8800_mdio_read
[  225.778997] ++ETH r32 [f0026024] 00000200 from mdiobus_read
[  225.784835] libphy: mdiobus_read: addr=4 regnum=00000005 from genphy_read_status
[  225.792499] nb8800_mdio_read from mdiobus_read
[  225.797196] ++ETH w32 [f0026020] 00850000 from nb8800_mdio_read
[  225.803390] ++ETH w32 [f0026020] 80850000 from nb8800_mdio_read
[  225.809608] ++ETH r32 [f0026024] 00000000 from mdiobus_read
[  225.815447] libphy: mdiobus_read: addr=4 regnum=00000004 from genphy_read_status
[  225.823111] nb8800_mdio_read from mdiobus_read
[  225.827808] ++ETH w32 [f0026020] 00840000 from nb8800_mdio_read
[  225.834002] ++ETH w32 [f0026020] 80840000 from nb8800_mdio_read
[  225.840224] ++ETH r32 [f0026024] 000015e1 from mdiobus_read
[  225.846086] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  225.853753] nb8800_mdio_read from mdiobus_read
[  225.858451] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  225.864641] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  225.870874] ++ETH r32 [f0026024] 00007949 from mdiobus_read
[  225.876534] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  225.884308] nb8800_mdio_read from mdiobus_read
[  225.889005] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  225.895195] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  225.901415] ++ETH r32 [f0026024] 00007949 from mdiobus_read
[  225.907253] libphy: mdiobus_read: addr=4 regnum=0000000a from genphy_read_status
[  225.914917] nb8800_mdio_read from mdiobus_read
[  225.919613] ++ETH w32 [f0026020] 008a0000 from nb8800_mdio_read
[  225.925806] ++ETH w32 [f0026020] 808a0000 from nb8800_mdio_read
[  225.932027] ++ETH r32 [f0026024] 00000000 from mdiobus_read
[  225.937866] libphy: mdiobus_read: addr=4 regnum=00000009 from genphy_read_status
[  225.945529] nb8800_mdio_read from mdiobus_read
[  225.950228] ++ETH w32 [f0026020] 00890000 from nb8800_mdio_read
[  225.956420] ++ETH w32 [f0026020] 80890000 from nb8800_mdio_read
[  225.962639] ++ETH r32 [f0026024] 00000200 from mdiobus_read
[  225.968476] libphy: mdiobus_read: addr=4 regnum=00000005 from genphy_read_status
[  225.976140] nb8800_mdio_read from mdiobus_read
[  225.980867] ++ETH w32 [f0026020] 00850000 from nb8800_mdio_read
[  225.987058] ++ETH w32 [f0026020] 80850000 from nb8800_mdio_read
[  225.993277] ++ETH r32 [f0026024] 00000000 from mdiobus_read
[  225.999116] libphy: mdiobus_read: addr=4 regnum=00000004 from genphy_read_status
[  226.006778] nb8800_mdio_read from mdiobus_read
[  226.011475] ++ETH w32 [f0026020] 00840000 from nb8800_mdio_read
[  226.017692] ++ETH w32 [f0026020] 80840000 from nb8800_mdio_read
[  226.023913] ++ETH r32 [f0026024] 000015e1 from mdiobus_read
[  226.029759] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  226.037424] nb8800_mdio_read from mdiobus_read
[  226.042122] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  226.048313] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  226.054535] ++ETH r32 [f0026024] 00007949 from mdiobus_read
[  226.060372] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  226.068037] nb8800_mdio_read from mdiobus_read
[  226.072815] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  226.079043] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  226.085301] ++ETH r32 [f0026024] 00007949 from mdiobus_read
[  226.091168] libphy: mdiobus_read: addr=4 regnum=0000000a from genphy_read_status
[  226.098833] nb8800_mdio_read from mdiobus_read
[  226.103530] ++ETH w32 [f0026020] 008a0000 from nb8800_mdio_read
[  226.109724] ++ETH w32 [f0026020] 808a0000 from nb8800_mdio_read
[  226.115945] ++ETH r32 [f0026024] 00000000 from mdiobus_read
[  226.121782] libphy: mdiobus_read: addr=4 regnum=00000009 from genphy_read_status
[  226.129446] nb8800_mdio_read from mdiobus_read
[  226.134143] ++ETH w32 [f0026020] 00890000 from nb8800_mdio_read
[  226.140359] ++ETH w32 [f0026020] 80890000 from nb8800_mdio_read
[  226.146574] ++ETH r32 [f0026024] 00000200 from mdiobus_read
[  226.152413] libphy: mdiobus_read: addr=4 regnum=00000005 from genphy_read_status
[  226.160075] nb8800_mdio_read from mdiobus_read
[  226.164774] ++ETH w32 [f0026020] 00850000 from nb8800_mdio_read
[  226.170992] ++ETH w32 [f0026020] 80850000 from nb8800_mdio_read
[  226.177210] ++ETH r32 [f0026024] 00000000 from mdiobus_read
[  226.183047] libphy: mdiobus_read: addr=4 regnum=00000004 from genphy_read_status
[  226.190711] nb8800_mdio_read from mdiobus_read
[  226.195408] ++ETH w32 [f0026020] 00840000 from nb8800_mdio_read
[  226.201600] ++ETH w32 [f0026020] 80840000 from nb8800_mdio_read
[  226.207822] ++ETH r32 [f0026024] 000015e1 from mdiobus_read
[  226.213667] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  226.221332] nb8800_mdio_read from mdiobus_read
[  226.226030] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  226.232223] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  226.238444] ++ETH r32 [f0026024] 00007949 from mdiobus_read
[  226.244309] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  226.251974] nb8800_mdio_read from mdiobus_read
[  226.256671] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  226.262865] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  226.269087] ++ETH r32 [f0026024] 00007949 from mdiobus_read
[  226.274924] libphy: mdiobus_read: addr=4 regnum=0000000a from genphy_read_status
[  226.282587] nb8800_mdio_read from mdiobus_read
[  226.287283] ++ETH w32 [f0026020] 008a0000 from nb8800_mdio_read
[  226.293477] ++ETH w32 [f0026020] 808a0000 from nb8800_mdio_read
[  226.299716] ++ETH r32 [f0026024] 00000000 from mdiobus_read
[  226.305556] libphy: mdiobus_read: addr=4 regnum=00000009 from genphy_read_status
[  226.313220] nb8800_mdio_read from mdiobus_read
[  226.317918] ++ETH w32 [f0026020] 00890000 from nb8800_mdio_read
[  226.324110] ++ETH w32 [f0026020] 80890000 from nb8800_mdio_read
[  226.330329] ++ETH r32 [f0026024] 00000200 from mdiobus_read
[  226.336167] libphy: mdiobus_read: addr=4 regnum=00000005 from genphy_read_status
[  226.343830] nb8800_mdio_read from mdiobus_read
[  226.348529] ++ETH w32 [f0026020] 00850000 from nb8800_mdio_read
[  226.354719] ++ETH w32 [f0026020] 80850000 from nb8800_mdio_read
[  226.360970] ++ETH r32 [f0026024] 00000000 from mdiobus_read
[  226.366806] libphy: mdiobus_read: addr=4 regnum=00000004 from genphy_read_status
[  226.374472] nb8800_mdio_read from mdiobus_read
[  226.379170] ++ETH w32 [f0026020] 00840000 from nb8800_mdio_read
[  226.385362] ++ETH w32 [f0026020] 80840000 from nb8800_mdio_read
[  226.391584] ++ETH r32 [f0026024] 000015e1 from mdiobus_read
[  226.397427] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  226.405094] nb8800_mdio_read from mdiobus_read
[  226.409792] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  226.415986] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  226.422212] ++ETH r32 [f0026024] 00007949 from mdiobus_read
[  226.428050] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  226.435714] nb8800_mdio_read from mdiobus_read
[  226.440412] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  226.446606] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  226.452829] ++ETH r32 [f0026024] 00007949 from mdiobus_read
[  226.458666] libphy: mdiobus_read: addr=4 regnum=0000000a from genphy_read_status
[  226.466329] nb8800_mdio_read from mdiobus_read
[  226.471037] ++ETH w32 [f0026020] 008a0000 from nb8800_mdio_read
[  226.477229] ++ETH w32 [f0026020] 808a0000 from nb8800_mdio_read
[  226.483450] ++ETH r32 [f0026024] 00000000 from mdiobus_read
[  226.489287] libphy: mdiobus_read: addr=4 regnum=00000009 from genphy_read_status
[  226.496953] nb8800_mdio_read from mdiobus_read
[  226.501654] ++ETH w32 [f0026020] 00890000 from nb8800_mdio_read
[  226.507846] ++ETH w32 [f0026020] 80890000 from nb8800_mdio_read
[  226.514068] ++ETH r32 [f0026024] 00000200 from mdiobus_read
[  226.519905] libphy: mdiobus_read: addr=4 regnum=00000005 from genphy_read_status
[  226.527618] nb8800_mdio_read from mdiobus_read
[  226.532318] ++ETH w32 [f0026020] 00850000 from nb8800_mdio_read
[  226.538513] ++ETH w32 [f0026020] 80850000 from nb8800_mdio_read
[  226.544733] ++ETH r32 [f0026024] 000045e1 from mdiobus_read
[  226.550573] libphy: mdiobus_read: addr=4 regnum=00000004 from genphy_read_status
[  226.558236] nb8800_mdio_read from mdiobus_read
[  226.562932] ++ETH w32 [f0026020] 00840000 from nb8800_mdio_read
[  226.569126] ++ETH w32 [f0026020] 80840000 from nb8800_mdio_read
[  226.575347] ++ETH r32 [f0026024] 000015e1 from mdiobus_read
[  226.581208] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  226.588872] nb8800_mdio_read from mdiobus_read
[  226.593568] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  226.599760] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  226.605982] ++ETH r32 [f0026024] 00007949 from mdiobus_read
[  226.611817] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  226.619479] nb8800_mdio_read from mdiobus_read
[  226.624205] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  226.630394] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  226.636616] ++ETH r32 [f0026024] 0000796d from mdiobus_read
[  226.642453] libphy: mdiobus_read: addr=4 regnum=0000000a from genphy_read_status
[  226.650117] nb8800_mdio_read from mdiobus_read
[  226.654814] ++ETH w32 [f0026020] 008a0000 from nb8800_mdio_read
[  226.661041] ++ETH w32 [f0026020] 808a0000 from nb8800_mdio_read
[  226.667262] ++ETH r32 [f0026024] 00000000 from mdiobus_read
[  226.673102] libphy: mdiobus_read: addr=4 regnum=00000009 from genphy_read_status
[  226.680765] nb8800_mdio_read from mdiobus_read
[  226.685464] ++ETH w32 [f0026020] 00890000 from nb8800_mdio_read
[  226.691657] ++ETH w32 [f0026020] 80890000 from nb8800_mdio_read
[  226.697878] ++ETH r32 [f0026024] 00000200 from mdiobus_read
[  226.703713] libphy: mdiobus_read: addr=4 regnum=00000005 from genphy_read_status
[  226.711379] nb8800_mdio_read from mdiobus_read
[  226.716075] ++ETH w32 [f0026020] 00850000 from nb8800_mdio_read
[  226.722268] ++ETH w32 [f0026020] 80850000 from nb8800_mdio_read
[  226.728489] ++ETH r32 [f0026024] 000045e1 from mdiobus_read
[  226.734349] libphy: mdiobus_read: addr=4 regnum=00000004 from genphy_read_status
[  226.742014] nb8800_mdio_read from mdiobus_read
[  226.746710] ++ETH w32 [f0026020] 00840000 from nb8800_mdio_read
[  226.752921] ++ETH w32 [f0026020] 80840000 from nb8800_mdio_read
[  226.759144] ++ETH r32 [f0026024] 000015e1 from mdiobus_read
[  226.764983] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_aneg_done
[  226.772473] nb8800_mdio_read from mdiobus_read
[  226.777170] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  226.783363] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  226.789583] ++ETH r32 [f0026024] 0000796d from mdiobus_read
[  226.795415] libphy: 1: [drivers/net/phy/phy.c:1016] phy_state_machine(): mark
[  226.802815] [drivers/net/ethernet/aurora/nb8800.c: 722] nb8800_link_reconfigure(): mark
[  226.811105] ++ETH w8 [f0026050] 01 from phy_state_machine
[  226.816766] ++ETH w8 [f002601c] 80 from phy_state_machine
[  226.822424] ++ETH r8 [f0026044] 00 from phy_state_machine
[  226.828082] ++ETH r8 [f0026004] 23 from nb8800_link_reconfigure
[  226.834293] ++ETH w8 [f0026004] 2b from nb8800_link_reconfigure
[  226.840474] ++ETH r32 [f0026200] 06100a8f from nb8800_link_reconfigure
[  226.847315] ++ETH r8 [f0026004] 2b from nb8800_dma_stop
[  226.852625] ++ETH w8 [f0026004] 0b from nb8800_dma_stop
[  226.857919] ++ETH r8 [f0026044] 00 from nb8800_pause_config
[  226.863559] ++ETH w8 [f0026044] 04 from nb8800_pause_config
[  226.869200] ++ETH w32 [f002610c] 8fbf4000 from nb8800_pause_config
[  226.875452] ++ETH w32 [f0026100] 000002ff from nb8800_pause_config
[  226.881709] [drivers/net/ethernet/aurora/nb8800.c: 587] nb8800_irq(): mark
[  226.888640] ++ETH r32 [f0026104] 00000004 from handle_irq_event_percpu
[  226.895210] [drivers/net/ethernet/aurora/nb8800.c: 592] nb8800_irq(): tx irq, 0x00000004
[  226.903357] ++ETH w32 [f0026104] 00000004 from handle_irq_event_percpu
[  226.909931] ++ETH r32 [f0026204] 00000004 from handle_irq_event_percpu
[  226.916501] [drivers/net/ethernet/aurora/nb8800.c: 621] nb8800_irq(): rx irq, 0x00000004
[  226.924646] ++ETH w32 [f0026204] 00000004 from handle_irq_event_percpu
[  226.931219] ++ETH w32 [f0026218] 003cc4a4 from handle_irq_event_percpu
[  226.937819] [drivers/net/ethernet/aurora/nb8800.c: 587] nb8800_irq(): mark
[  226.944746] ++ETH r32 [f0026104] 00000001 from handle_irq_event_percpu
[  226.951318] [drivers/net/ethernet/aurora/nb8800.c: 592] nb8800_irq(): tx irq, 0x00000001
[  226.959462] ++ETH w32 [f0026104] 00000001 from handle_irq_event_percpu
[  226.966035] ++ETH r32 [f0026204] 00000000 from handle_irq_event_percpu
[  226.982648] ++ETH w32 [f002610c] 8fbf4000 from nb8800_pause_config
[  226.988901] ++ETH w32 [f0026100] 000002ff from nb8800_pause_config
[  226.995154] [drivers/net/ethernet/aurora/nb8800.c: 587] nb8800_irq(): mark
[  227.002080] ++ETH r32 [f0026104] 00000004 from handle_irq_event_percpu
[  227.008650] [drivers/net/ethernet/aurora/nb8800.c: 592] nb8800_irq(): tx irq, 0x00000004
[  227.016796] ++ETH w32 [f0026104] 00000004 from handle_irq_event_percpu
[  227.023369] ++ETH r32 [f0026204] 00000004 from handle_irq_event_percpu
[  227.029938] [drivers/net/ethernet/aurora/nb8800.c: 621] nb8800_irq(): rx irq, 0x00000004
[  227.038083] ++ETH w32 [f0026204] 00000004 from handle_irq_event_percpu
[  227.044656] ++ETH w32 [f0026218] 003cc4a4 from handle_irq_event_percpu
[  227.051253] [drivers/net/ethernet/aurora/nb8800.c: 587] nb8800_irq(): mark
[  227.058178] ++ETH r32 [f0026104] 00000001 from handle_irq_event_percpu
[  227.064747] [drivers/net/ethernet/aurora/nb8800.c: 592] nb8800_irq(): tx irq, 0x00000001
[  227.072892] ++ETH w32 [f0026104] 00000001 from handle_irq_event_percpu
[  227.079465] ++ETH r32 [f0026204] 00000000 from handle_irq_event_percpu
[  227.096078] ++ETH w32 [f002610c] 8fbf4000 from nb8800_pause_config
[  227.102331] ++ETH w32 [f0026100] 000002ff from nb8800_pause_config
[  227.108584] [drivers/net/ethernet/aurora/nb8800.c: 587] nb8800_irq(): mark
[  227.115510] ++ETH r32 [f0026104] 00000004 from handle_irq_event_percpu
[  227.122080] [drivers/net/ethernet/aurora/nb8800.c: 592] nb8800_irq(): tx irq, 0x00000004
[  227.130225] ++ETH w32 [f0026104] 00000004 from handle_irq_event_percpu
[  227.136799] ++ETH r32 [f0026204] 00000004 from handle_irq_event_percpu
[  227.143367] [drivers/net/ethernet/aurora/nb8800.c: 621] nb8800_irq(): rx irq, 0x00000004
[  227.151512] ++ETH w32 [f0026204] 00000004 from handle_irq_event_percpu
[  227.158085] ++ETH w32 [f0026218] 003cc4a4 from handle_irq_event_percpu
[  227.164683] [drivers/net/ethernet/aurora/nb8800.c: 587] nb8800_irq(): mark
[  227.171608] ++ETH r32 [f0026104] 00000001 from handle_irq_event_percpu
[  227.178179] [drivers/net/ethernet/aurora/nb8800.c: 592] nb8800_irq(): tx irq, 0x00000001
[  227.186324] ++ETH w32 [f0026104] 00000001 from handle_irq_event_percpu
[  227.192897] ++ETH r32 [f0026204] 00000000 from handle_irq_event_percpu
[  227.199500] ++ETH r8 [f0026004] 0b from nb8800_dma_stop
[  227.204788] ++ETH w8 [f0026004] 2b from nb8800_dma_stop
[  227.210077] ++ETH r8 [f0026044] 04 from nb8800_pause_config
[  227.215714] ++ETH w8 [f0026044] 00 from nb8800_pause_config
[  227.221378] ++ETH w32 [f002620c] 8fbfa000 from nb8800_dma_stop
[  227.227282] ++ETH r32 [f0026200] 06100a8e from nb8800_link_reconfigure
[  227.233882] ++ETH w32 [f0026200] 06102a8e from nb8800_link_reconfigure
[  227.240482] ++ETH r32 [f0026200] 06102a8e from nb8800_pause_config
[  227.246731] ++ETH w32 [f0026200] 06102a8f from nb8800_pause_config
[  227.258188] nb8800 26000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
[  227.266299] libphy: 1: [drivers/net/phy/phy.c:942] phy_state_machine(): mark: 0, 6
[  227.274289] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  227.281958] nb8800_mdio_read from mdiobus_read
[  227.286658] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  227.292853] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  227.299074] ++ETH r32 [f0026024] 0000796d from mdiobus_read
[  227.304913] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  227.312577] nb8800_mdio_read from mdiobus_read
[  227.317275] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  227.323470] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  227.329692] ++ETH r32 [f0026024] 0000796d from mdiobus_read
[  227.335530] libphy: mdiobus_read: addr=4 regnum=0000000a from genphy_read_status
[  227.343197] nb8800_mdio_read from mdiobus_read
[  227.347896] ++ETH w32 [f0026020] 008a0000 from nb8800_mdio_read
[  227.354087] ++ETH w32 [f0026020] 808a0000 from nb8800_mdio_read
[  227.360308] ++ETH r32 [f0026024] 00000000 from mdiobus_read
[  227.366147] libphy: mdiobus_read: addr=4 regnum=00000009 from genphy_read_status
[  227.373811] nb8800_mdio_read from mdiobus_read
[  227.378508] ++ETH w32 [f0026020] 00890000 from nb8800_mdio_read
[  227.384701] ++ETH w32 [f0026020] 80890000 from nb8800_mdio_read
[  227.390953] ++ETH r32 [f0026024] 00000200 from mdiobus_read
[  227.396790] libphy: mdiobus_read: addr=4 regnum=00000005 from genphy_read_status
[  227.404455] nb8800_mdio_read from mdiobus_read
[  227.409151] ++ETH w32 [f0026020] 00850000 from nb8800_mdio_read
[  227.415345] ++ETH w32 [f0026020] 80850000 from nb8800_mdio_read
[  227.421572] ++ETH r32 [f0026024] 000045e1 from mdiobus_read
[  227.427411] libphy: mdiobus_read: addr=4 regnum=00000004 from genphy_read_status
[  227.435076] nb8800_mdio_read from mdiobus_read
[  227.439776] ++ETH w32 [f0026020] 00840000 from nb8800_mdio_read
[  227.445968] ++ETH w32 [f0026020] 80840000 from nb8800_mdio_read
[  227.452192] ++ETH r32 [f0026024] 000015e1 from mdiobus_read
[  227.458144] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  227.465840] nb8800_mdio_read from mdiobus_read
[  227.470543] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  227.476735] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  227.482956] ++ETH r32 [f0026024] 0000796d from mdiobus_read
[  227.488796] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  227.496462] nb8800_mdio_read from mdiobus_read
[  227.501160] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  227.507354] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  227.513579] ++ETH r32 [f0026024] 0000796d from mdiobus_read
[  227.519417] libphy: mdiobus_read: addr=4 regnum=0000000a from genphy_read_status
[  227.527082] nb8800_mdio_read from mdiobus_read
[  227.531779] ++ETH w32 [f0026020] 008a0000 from nb8800_mdio_read
[  227.537971] ++ETH w32 [f0026020] 808a0000 from nb8800_mdio_read
[  227.544209] ++ETH r32 [f0026024] 00000000 from mdiobus_read
[  227.549869] libphy: mdiobus_read: addr=4 regnum=00000009 from genphy_read_status
[  227.557646] nb8800_mdio_read from mdiobus_read
[  227.562344] ++ETH w32 [f0026020] 00890000 from nb8800_mdio_read
[  227.568536] ++ETH w32 [f0026020] 80890000 from nb8800_mdio_read
[  227.574757] ++ETH r32 [f0026024] 00000200 from mdiobus_read
[  227.580596] libphy: mdiobus_read: addr=4 regnum=00000005 from genphy_read_status
[  227.588260] nb8800_mdio_read from mdiobus_read
[  227.592956] ++ETH w32 [f0026020] 00850000 from nb8800_mdio_read
[  227.599150] ++ETH w32 [f0026020] 80850000 from nb8800_mdio_read
[  227.605370] ++ETH r32 [f0026024] 000045e1 from mdiobus_read
[  227.611208] libphy: mdiobus_read: addr=4 regnum=00000004 from genphy_read_status
[  227.618872] nb8800_mdio_read from mdiobus_read
[  227.623570] ++ETH w32 [f0026020] 00840000 from nb8800_mdio_read
[  227.629765] ++ETH w32 [f0026020] 80840000 from nb8800_mdio_read
[  227.635987] ++ETH r32 [f0026024] 000015e1 from mdiobus_read
[  227.641835] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  227.649499] nb8800_mdio_read from mdiobus_read
[  227.654226] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  227.660417] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  227.666639] ++ETH r32 [f0026024] 0000796d from mdiobus_read
[  227.672475] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  227.680139] nb8800_mdio_read from mdiobus_read
[  227.684837] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  227.691057] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  227.697280] ++ETH r32 [f0026024] 0000796d from mdiobus_read
[  227.703119] libphy: mdiobus_read: addr=4 regnum=0000000a from genphy_read_status
[  227.710785] nb8800_mdio_read from mdiobus_read
[  227.715484] ++ETH w32 [f0026020] 008a0000 from nb8800_mdio_read
[  227.721678] ++ETH w32 [f0026020] 808a0000 from nb8800_mdio_read
[  227.727899] ++ETH r32 [f0026024] 00000000 from mdiobus_read
[  227.733736] libphy: mdiobus_read: addr=4 regnum=00000009 from genphy_read_status
[  227.741401] nb8800_mdio_read from mdiobus_read
[  227.746098] ++ETH w32 [f0026020] 00890000 from nb8800_mdio_read
[  227.752292] ++ETH w32 [f0026020] 80890000 from nb8800_mdio_read
[  227.758513] ++ETH r32 [f0026024] 00000200 from mdiobus_read
[  227.764364] libphy: mdiobus_read: addr=4 regnum=00000005 from genphy_read_status
[  227.772027] nb8800_mdio_read from mdiobus_read
[  227.776722] ++ETH w32 [f0026020] 00850000 from nb8800_mdio_read
[  227.782914] ++ETH w32 [f0026020] 80850000 from nb8800_mdio_read
[  227.789135] ++ETH r32 [f0026024] 000045e1 from mdiobus_read
[  227.794972] libphy: mdiobus_read: addr=4 regnum=00000004 from genphy_read_status
[  227.802634] nb8800_mdio_read from mdiobus_read
[  227.807333] ++ETH w32 [f0026020] 00840000 from nb8800_mdio_read
[  227.813526] ++ETH w32 [f0026020] 80840000 from nb8800_mdio_read
[  227.819746] ++ETH r32 [f0026024] 000015e1 from mdiobus_read
[  227.825592] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  227.833257] nb8800_mdio_read from mdiobus_read
[  227.837956] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  227.844148] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  227.850394] ++ETH r32 [f0026024] 0000796d from mdiobus_read
[  227.856228] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  227.863892] nb8800_mdio_read from mdiobus_read
[  227.868591] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  227.874784] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  227.881028] ++ETH r32 [f0026024] 0000796d from mdiobus_read
[  227.886867] libphy: mdiobus_read: addr=4 regnum=0000000a from genphy_read_status
[  227.894531] nb8800_mdio_read from mdiobus_read
[  227.899230] ++ETH w32 [f0026020] 008a0000 from nb8800_mdio_read
[  227.905423] ++ETH w32 [f0026020] 808a0000 from nb8800_mdio_read
[  227.911641] ++ETH r32 [f0026024] 00000001 from mdiobus_read
[  227.917478] libphy: mdiobus_read: addr=4 regnum=00000009 from genphy_read_status
[  227.925197] nb8800_mdio_read from mdiobus_read
[  227.929892] ++ETH w32 [f0026020] 00890000 from nb8800_mdio_read
[  227.936086] ++ETH w32 [f0026020] 80890000 from nb8800_mdio_read
[  227.942310] ++ETH r32 [f0026024] 00000200 from mdiobus_read
[  227.948148] libphy: mdiobus_read: addr=4 regnum=00000005 from genphy_read_status
[  227.955813] nb8800_mdio_read from mdiobus_read
[  227.960511] ++ETH w32 [f0026020] 00850000 from nb8800_mdio_read
[  227.966704] ++ETH w32 [f0026020] 80850000 from nb8800_mdio_read
[  227.972927] ++ETH r32 [f0026024] 000045e1 from mdiobus_read
[  227.978766] libphy: mdiobus_read: addr=4 regnum=00000004 from genphy_read_status
[  227.986430] nb8800_mdio_read from mdiobus_read
[  227.991129] ++ETH w32 [f0026020] 00840000 from nb8800_mdio_read
[  227.997322] ++ETH w32 [f0026020] 80840000 from nb8800_mdio_read
[  228.003545] ++ETH r32 [f0026024] 000015e1 from mdiobus_read
[  228.009391] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  228.017056] nb8800_mdio_read from mdiobus_read
[  228.021754] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  228.027948] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  228.034210] ++ETH r32 [f0026024] 0000796d from mdiobus_read
[  228.039868] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  228.047647] nb8800_mdio_read from mdiobus_read
[  228.052345] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  228.058540] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  228.064762] ++ETH r32 [f0026024] 0000796d from mdiobus_read
[  228.070599] libphy: mdiobus_read: addr=4 regnum=0000000a from genphy_read_status
[  228.078331] nb8800_mdio_read from mdiobus_read
[  228.083064] ++ETH w32 [f0026020] 008a0000 from nb8800_mdio_read
[  228.089300] ++ETH w32 [f0026020] 808a0000 from nb8800_mdio_read
[  228.095552] ++ETH r32 [f0026024] 00000000 from mdiobus_read
[  228.101393] libphy: mdiobus_read: addr=4 regnum=00000009 from genphy_read_status
[  228.109058] nb8800_mdio_read from mdiobus_read
[  228.113757] ++ETH w32 [f0026020] 00890000 from nb8800_mdio_read
[  228.119950] ++ETH w32 [f0026020] 80890000 from nb8800_mdio_read
[  228.126172] ++ETH r32 [f0026024] 00000200 from mdiobus_read
[  228.132011] libphy: mdiobus_read: addr=4 regnum=00000005 from genphy_read_status
[  228.139675] nb8800_mdio_read from mdiobus_read
[  228.144373] ++ETH w32 [f0026020] 00850000 from nb8800_mdio_read
[  228.150583] ++ETH w32 [f0026020] 80850000 from nb8800_mdio_read
[  228.156806] ++ETH r32 [f0026024] 000045e1 from mdiobus_read
[  228.162644] libphy: mdiobus_read: addr=4 regnum=00000004 from genphy_read_status
[  228.170308] nb8800_mdio_read from mdiobus_read
[  228.175006] ++ETH w32 [f0026020] 00840000 from nb8800_mdio_read
[  228.181200] ++ETH w32 [f0026020] 80840000 from nb8800_mdio_read
[  228.187422] ++ETH r32 [f0026024] 000015e1 from mdiobus_read
[  228.193276] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  228.200972] nb8800_mdio_read from mdiobus_read
[  228.205670] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  228.211862] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  228.218083] ++ETH r32 [f0026024] 0000796d from mdiobus_read
[  228.223920] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  228.231585] nb8800_mdio_read from mdiobus_read
[  228.236282] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  228.242474] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  228.248695] ++ETH r32 [f0026024] 0000796d from mdiobus_read
[  228.254534] libphy: mdiobus_read: addr=4 regnum=0000000a from genphy_read_status
[  228.262197] nb8800_mdio_read from mdiobus_read
[  228.266895] ++ETH w32 [f0026020] 008a0000 from nb8800_mdio_read
[  228.273086] ++ETH w32 [f0026020] 808a0000 from nb8800_mdio_read
[  228.279308] ++ETH r32 [f0026024] 00000000 from mdiobus_read
[  228.285144] libphy: mdiobus_read: addr=4 regnum=00000009 from genphy_read_status
[  228.292809] nb8800_mdio_read from mdiobus_read
[  228.297535] ++ETH w32 [f0026020] 00890000 from nb8800_mdio_read
[  228.303726] ++ETH w32 [f0026020] 80890000 from nb8800_mdio_read
[  228.309950] ++ETH r32 [f0026024] 00000200 from mdiobus_read
[  228.315788] libphy: mdiobus_read: addr=4 regnum=00000005 from genphy_read_status
[  228.323452] nb8800_mdio_read from mdiobus_read
[  228.328149] ++ETH w32 [f0026020] 00850000 from nb8800_mdio_read
[  228.334354] ++ETH w32 [f0026020] 80850000 from nb8800_mdio_read
[  228.340575] ++ETH r32 [f0026024] 000045e1 from mdiobus_read
[  228.346415] libphy: mdiobus_read: addr=4 regnum=00000004 from genphy_read_status
[  228.354081] nb8800_mdio_read from mdiobus_read
[  228.358781] ++ETH w32 [f0026020] 00840000 from nb8800_mdio_read
[  228.364974] ++ETH w32 [f0026020] 80840000 from nb8800_mdio_read
[  228.371194] ++ETH r32 [f0026024] 000015e1 from mdiobus_read
[  228.377057] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  228.384725] nb8800_mdio_read from mdiobus_read
[  228.389422] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  228.395615] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  228.401837] ++ETH r32 [f0026024] 0000796d from mdiobus_read
[  228.407686] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  228.415352] nb8800_mdio_read from mdiobus_read
[  228.420052] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  228.426246] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  228.432469] ++ETH r32 [f0026024] 0000796d from mdiobus_read
[  228.438306] libphy: mdiobus_read: addr=4 regnum=0000000a from genphy_read_status
[  228.445970] nb8800_mdio_read from mdiobus_read
[  228.450669] ++ETH w32 [f0026020] 008a0000 from nb8800_mdio_read
[  228.456860] ++ETH w32 [f0026020] 808a0000 from nb8800_mdio_read
[  228.463083] ++ETH r32 [f0026024] 00000000 from mdiobus_read
[  228.468921] libphy: mdiobus_read: addr=4 regnum=00000009 from genphy_read_status
[  228.476585] nb8800_mdio_read from mdiobus_read
[  228.481284] ++ETH w32 [f0026020] 00890000 from nb8800_mdio_read
[  228.487476] ++ETH w32 [f0026020] 80890000 from nb8800_mdio_read
[  228.493720] ++ETH r32 [f0026024] 00000200 from mdiobus_read
[  228.499554] libphy: mdiobus_read: addr=4 regnum=00000005 from genphy_read_status
[  228.507219] nb8800_mdio_read from mdiobus_read
[  228.511918] ++ETH w32 [f0026020] 00850000 from nb8800_mdio_read
[  228.518111] ++ETH w32 [f0026020] 80850000 from nb8800_mdio_read
[  228.524359] ++ETH r32 [f0026024] 000045e1 from mdiobus_read
[  228.530197] libphy: mdiobus_read: addr=4 regnum=00000004 from genphy_read_status
[  228.537863] nb8800_mdio_read from mdiobus_read
[  228.542561] ++ETH w32 [f0026020] 00840000 from nb8800_mdio_read
[  228.548754] ++ETH w32 [f0026020] 80840000 from nb8800_mdio_read
[  228.554977] ++ETH r32 [f0026024] 000015e1 from mdiobus_read
[  228.560893] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  228.568378] nb8800_mdio_read from mdiobus_read
[  228.573157] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  228.579353] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  228.585575] ++ETH r32 [f0026024] 0000796d from mdiobus_read
[  228.591413] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  228.599078] nb8800_mdio_read from mdiobus_read
[  228.603792] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  228.609985] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  228.616208] ++ETH r32 [f0026024] 0000796d from mdiobus_read
[  228.622047] libphy: mdiobus_read: addr=4 regnum=0000000a from genphy_read_status
[  228.629708] nb8800_mdio_read from mdiobus_read
[  228.634408] ++ETH w32 [f0026020] 008a0000 from nb8800_mdio_read
[  228.640601] ++ETH w32 [f0026020] 808a0000 from nb8800_mdio_read
[  228.646822] ++ETH r32 [f0026024] 00000000 from mdiobus_read
[  228.652661] libphy: mdiobus_read: addr=4 regnum=00000009 from genphy_read_status
[  228.660323] nb8800_mdio_read from mdiobus_read
[  228.665021] ++ETH w32 [f0026020] 00890000 from nb8800_mdio_read
[  228.671216] ++ETH w32 [f0026020] 80890000 from nb8800_mdio_read
[  228.677436] ++ETH r32 [f0026024] 00000200 from mdiobus_read
[  228.683274] libphy: mdiobus_read: addr=4 regnum=00000005 from genphy_read_status
[  228.690967] nb8800_mdio_read from mdiobus_read
[  228.695663] ++ETH w32 [f0026020] 00850000 from nb8800_mdio_read
[  228.701857] ++ETH w32 [f0026020] 80850000 from nb8800_mdio_read
[  228.708081] ++ETH r32 [f0026024] 000045e1 from mdiobus_read
[  228.713918] libphy: mdiobus_read: addr=4 regnum=00000004 from genphy_read_status
[  228.721583] nb8800_mdio_read from mdiobus_read
[  228.726280] ++ETH w32 [f0026020] 00840000 from nb8800_mdio_read
[  228.732471] ++ETH w32 [f0026020] 80840000 from nb8800_mdio_read
[  228.738693] ++ETH r32 [f0026024] 000015e1 from mdiobus_read
[  228.744539] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  228.752204] nb8800_mdio_read from mdiobus_read
[  228.756901] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  228.763094] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  228.769316] ++ETH r32 [f0026024] 0000796d from mdiobus_read
[  228.775153] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  228.782817] nb8800_mdio_read from mdiobus_read
[  228.787545] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  228.793735] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  228.799955] ++ETH r32 [f0026024] 0000796d from mdiobus_read
[  228.805792] libphy: mdiobus_read: addr=4 regnum=0000000a from genphy_read_status
[  228.813455] nb8800_mdio_read from mdiobus_read
[  228.818153] ++ETH w32 [f0026020] 008a0000 from nb8800_mdio_read
[  228.824358] ++ETH w32 [f0026020] 808a0000 from nb8800_mdio_read
[  228.830594] ++ETH r32 [f0026024] 00000000 from mdiobus_read
[  228.836434] libphy: mdiobus_read: addr=4 regnum=00000009 from genphy_read_status
[  228.844097] nb8800_mdio_read from mdiobus_read
[  228.848797] ++ETH w32 [f0026020] 00890000 from nb8800_mdio_read
[  228.854989] ++ETH w32 [f0026020] 80890000 from nb8800_mdio_read
[  228.861209] ++ETH r32 [f0026024] 00000200 from mdiobus_read
[  228.867047] libphy: mdiobus_read: addr=4 regnum=00000005 from genphy_read_status
[  228.874712] nb8800_mdio_read from mdiobus_read
[  228.879411] ++ETH w32 [f0026020] 00850000 from nb8800_mdio_read
[  228.885603] ++ETH w32 [f0026020] 80850000 from nb8800_mdio_read
[  228.891826] ++ETH r32 [f0026024] 000045e1 from mdiobus_read
[  228.897682] libphy: mdiobus_read: addr=4 regnum=00000004 from genphy_read_status
[  228.905347] nb8800_mdio_read from mdiobus_read
[  228.910045] ++ETH w32 [f0026020] 00840000 from nb8800_mdio_read
[  228.916049] [drivers/net/ethernet/aurora/nb8800.c: 587] nb8800_irq(): mark
[  228.916067] ++ETH r32 [f0026104] 00000000 from handle_irq_event_percpu
[  228.916081] ++ETH r32 [f0026204] 00000004 from handle_irq_event_percpu
[  228.916090] [drivers/net/ethernet/aurora/nb8800.c: 621] nb8800_irq(): rx irq, 0x00000004
[  228.916103] ++ETH w32 [f0026204] 00000004 from handle_irq_event_percpu
[  228.916115] ++ETH w32 [f0026218] 003cc4a4 from handle_irq_event_percpu
[  228.916514] [drivers/net/ethernet/aurora/nb8800.c: 326] nb8800_poll(): mark
[  228.916540] ++ETH w32 [f0026218] 00004dc8 from net_rx_action
[  228.971056] ++ETH w32 [f0026020] 80840000 from nb8800_mdio_read
[  228.977448] ++ETH r32 [f0026024] 000015e1 from mdiobus_read
[  228.983299] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  228.990990] nb8800_mdio_read from mdiobus_read
[  228.995688] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  229.001884] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  229.008106] ++ETH r32 [f0026024] 0000796d from mdiobus_read
[  229.013942] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  229.021608] nb8800_mdio_read from mdiobus_read
[  229.026305] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  229.032497] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  229.038719] ++ETH r32 [f0026024] 0000796d from mdiobus_read
[  229.044556] libphy: mdiobus_read: addr=4 regnum=0000000a from genphy_read_status
[  229.052221] nb8800_mdio_read from mdiobus_read
[  229.056918] ++ETH w32 [f0026020] 008a0000 from nb8800_mdio_read
[  229.063126] ++ETH w32 [f0026020] 808a0000 from nb8800_mdio_read
[  229.069349] ++ETH r32 [f0026024] 00000000 from mdiobus_read
[  229.075253] libphy: mdiobus_read: addr=4 regnum=00000009 from genphy_read_status
[  229.082952] nb8800_mdio_read from mdiobus_read
[  229.087721] ++ETH w32 [f0026020] 00890000 from nb8800_mdio_read
[  229.093943] ++ETH w32 [f0026020] 80890000 from nb8800_mdio_read
[  229.100165] ++ETH r32 [f0026024] 00000200 from mdiobus_read
[  229.106004] libphy: mdiobus_read: addr=4 regnum=00000005 from genphy_read_status
[  229.113669] nb8800_mdio_read from mdiobus_read
[  229.118369] ++ETH w32 [f0026020] 00850000 from nb8800_mdio_read
[  229.124563] ++ETH w32 [f0026020] 80850000 from nb8800_mdio_read
[  229.130784] ++ETH r32 [f0026024] 000045e1 from mdiobus_read
[  229.136622] libphy: mdiobus_read: addr=4 regnum=00000004 from genphy_read_status
[  229.144314] nb8800_mdio_read from mdiobus_read
[  229.149011] ++ETH w32 [f0026020] 00840000 from nb8800_mdio_read
[  229.155204] ++ETH w32 [f0026020] 80840000 from nb8800_mdio_read
[  229.161426] ++ETH r32 [f0026024] 000015e1 from mdiobus_read
[  229.167270] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  229.174936] nb8800_mdio_read from mdiobus_read
[  229.179634] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  229.185828] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  229.192050] ++ETH r32 [f0026024] 0000796d from mdiobus_read
[  229.197888] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  229.205554] nb8800_mdio_read from mdiobus_read
[  229.210250] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  229.216443] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  229.222666] ++ETH r32 [f0026024] 0000796d from mdiobus_read
[  229.228503] libphy: mdiobus_read: addr=4 regnum=0000000a from genphy_read_status
[  229.236166] nb8800_mdio_read from mdiobus_read
[  229.240894] ++ETH w32 [f0026020] 008a0000 from nb8800_mdio_read
[  229.247084] ++ETH w32 [f0026020] 808a0000 from nb8800_mdio_read
[  229.253305] ++ETH r32 [f0026024] 00000000 from mdiobus_read
[  229.259141] libphy: mdiobus_read: addr=4 regnum=00000009 from genphy_read_status
[  229.266804] nb8800_mdio_read from mdiobus_read
[  229.271504] ++ETH w32 [f0026020] 00890000 from nb8800_mdio_read
[  229.277709] ++ETH w32 [f0026020] 80890000 from nb8800_mdio_read
[  229.283932] ++ETH r32 [f0026024] 00000200 from mdiobus_read
[  229.289788] libphy: mdiobus_read: addr=4 regnum=00000005 from genphy_read_status
[  229.297455] nb8800_mdio_read from mdiobus_read
[  229.302154] ++ETH w32 [f0026020] 00850000 from nb8800_mdio_read
[  229.308347] ++ETH w32 [f0026020] 80850000 from nb8800_mdio_read
[  229.314567] ++ETH r32 [f0026024] 000045e1 from mdiobus_read
[  229.320407] libphy: mdiobus_read: addr=4 regnum=00000004 from genphy_read_status
[  229.328072] nb8800_mdio_read from mdiobus_read
[  229.332767] ++ETH w32 [f0026020] 00840000 from nb8800_mdio_read
[  229.338961] ++ETH w32 [f0026020] 80840000 from nb8800_mdio_read
[  229.345181] ++ETH r32 [f0026024] 000015e1 from mdiobus_read
[  229.351040] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  229.358706] nb8800_mdio_read from mdiobus_read
[  229.363406] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  229.369600] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  229.375820] ++ETH r32 [f0026024] 0000796d from mdiobus_read
[  229.381658] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  229.389323] nb8800_mdio_read from mdiobus_read
[  229.394021] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  229.400214] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  229.406436] ++ETH r32 [f0026024] 0000796d from mdiobus_read
[  229.412273] libphy: mdiobus_read: addr=4 regnum=0000000a from genphy_read_status
[  229.419940] nb8800_mdio_read from mdiobus_read
[  229.424643] ++ETH w32 [f0026020] 008a0000 from nb8800_mdio_read
[  229.430866] ++ETH w32 [f0026020] 808a0000 from nb8800_mdio_read
[  229.437084] ++ETH r32 [f0026024] 00000000 from mdiobus_read
[  229.442922] libphy: mdiobus_read: addr=4 regnum=00000009 from genphy_read_status
[  229.450585] nb8800_mdio_read from mdiobus_read
[  229.455284] ++ETH w32 [f0026020] 00890000 from nb8800_mdio_read
[  229.461476] ++ETH w32 [f0026020] 80890000 from nb8800_mdio_read
[  229.467735] ++ETH r32 [f0026024] 00000200 from mdiobus_read
[  229.473571] libphy: mdiobus_read: addr=4 regnum=00000005 from genphy_read_status
[  229.481236] nb8800_mdio_read from mdiobus_read
[  229.485933] ++ETH w32 [f0026020] 00850000 from nb8800_mdio_read
[  229.492127] ++ETH w32 [f0026020] 80850000 from nb8800_mdio_read
[  229.498349] ++ETH r32 [f0026024] 000045e1 from mdiobus_read
[  229.504217] libphy: mdiobus_read: addr=4 regnum=00000004 from genphy_read_status
[  229.511879] nb8800_mdio_read from mdiobus_read
[  229.516595] ++ETH w32 [f0026020] 00840000 from nb8800_mdio_read
[  229.522789] ++ETH w32 [f0026020] 80840000 from nb8800_mdio_read
[  229.529010] ++ETH r32 [f0026024] 000015e1 from mdiobus_read
[  229.534951] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  229.542624] nb8800_mdio_read from mdiobus_read
[  229.547324] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  229.553517] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  229.559740] ++ETH r32 [f0026024] 0000796d from mdiobus_read
[  229.565579] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  229.573244] nb8800_mdio_read from mdiobus_read
[  229.577942] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  229.584132] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  229.590354] ++ETH r32 [f0026024] 0000796d from mdiobus_read
[  229.596192] libphy: mdiobus_read: addr=4 regnum=0000000a from genphy_read_status
[  229.603856] nb8800_mdio_read from mdiobus_read
[  229.608556] ++ETH w32 [f0026020] 008a0000 from nb8800_mdio_read
[  229.614750] ++ETH w32 [f0026020] 808a0000 from nb8800_mdio_read
[  229.621000] ++ETH r32 [f0026024] 00000000 from mdiobus_read
[  229.626836] libphy: mdiobus_read: addr=4 regnum=00000009 from genphy_read_status
[  229.634501] nb8800_mdio_read from mdiobus_read
[  229.639198] ++ETH w32 [f0026020] 00890000 from nb8800_mdio_read
[  229.645391] ++ETH w32 [f0026020] 80890000 from nb8800_mdio_read
[  229.651613] ++ETH r32 [f0026024] 00000200 from mdiobus_read
[  229.657449] libphy: mdiobus_read: addr=4 regnum=00000005 from genphy_read_status
[  229.665115] nb8800_mdio_read from mdiobus_read
[  229.669812] ++ETH w32 [f0026020] 00850000 from nb8800_mdio_read
[  229.676006] ++ETH w32 [f0026020] 80850000 from nb8800_mdio_read
[  229.682226] ++ETH r32 [f0026024] 000045e1 from mdiobus_read
[  229.688064] libphy: mdiobus_read: addr=4 regnum=00000004 from genphy_read_status
[  229.695729] nb8800_mdio_read from mdiobus_read
[  229.700427] ++ETH w32 [f0026020] 00840000 from nb8800_mdio_read
[  229.706620] ++ETH w32 [f0026020] 80840000 from nb8800_mdio_read
[  229.712842] ++ETH r32 [f0026024] 000015e1 from mdiobus_read
[  229.718691] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  229.726356] nb8800_mdio_read from mdiobus_read
[  229.731056] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  229.737250] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  229.743488] ++ETH r32 [f0026024] 0000796d from mdiobus_read
[  229.749324] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  229.756991] nb8800_mdio_read from mdiobus_read
[  229.761689] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  229.767884] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  229.774105] ++ETH r32 [f0026024] 0000796d from mdiobus_read
[  229.779942] libphy: mdiobus_read: addr=4 regnum=0000000a from genphy_read_status
[  229.787633] nb8800_mdio_read from mdiobus_read
[  229.792330] ++ETH w32 [f0026020] 008a0000 from nb8800_mdio_read
[  229.798522] ++ETH w32 [f0026020] 808a0000 from nb8800_mdio_read
[  229.804741] ++ETH r32 [f0026024] 00000000 from mdiobus_read
[  229.810580] libphy: mdiobus_read: addr=4 regnum=00000009 from genphy_read_status
[  229.818247] nb8800_mdio_read from mdiobus_read
[  229.822946] ++ETH w32 [f0026020] 00890000 from nb8800_mdio_read
[  229.829138] ++ETH w32 [f0026020] 80890000 from nb8800_mdio_read
[  229.835360] ++ETH r32 [f0026024] 00000200 from mdiobus_read
[  229.841196] libphy: mdiobus_read: addr=4 regnum=00000005 from genphy_read_status
[  229.848860] nb8800_mdio_read from mdiobus_read
[  229.853555] ++ETH w32 [f0026020] 00850000 from nb8800_mdio_read
[  229.859748] ++ETH w32 [f0026020] 80850000 from nb8800_mdio_read
[  229.865969] ++ETH r32 [f0026024] 000045e1 from mdiobus_read
[  229.871806] libphy: mdiobus_read: addr=4 regnum=00000004 from genphy_read_status
[  229.879469] nb8800_mdio_read from mdiobus_read
[  229.884192] ++ETH w32 [f0026020] 00840000 from nb8800_mdio_read
[  229.890379] ++ETH w32 [f0026020] 80840000 from nb8800_mdio_read
[  229.896603] ++ETH r32 [f0026024] 000015e1 from mdiobus_read
[  229.902448] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  229.910116] nb8800_mdio_read from mdiobus_read
[  229.914813] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  229.921039] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  229.927260] ++ETH r32 [f0026024] 0000796d from mdiobus_read
[  229.933098] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  229.940765] nb8800_mdio_read from mdiobus_read
[  229.945461] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  229.951656] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  229.957878] ++ETH r32 [f0026024] 0000796d from mdiobus_read
[  229.963716] libphy: mdiobus_read: addr=4 regnum=0000000a from genphy_read_status
[  229.971399] nb8800_mdio_read from mdiobus_read
[  229.976099] ++ETH w32 [f0026020] 008a0000 from nb8800_mdio_read
[  229.982292] ++ETH w32 [f0026020] 808a0000 from nb8800_mdio_read
[  229.988514] ++ETH r32 [f0026024] 00000000 from mdiobus_read
[  229.994363] libphy: mdiobus_read: addr=4 regnum=00000009 from genphy_read_status
[  230.002028] nb8800_mdio_read from mdiobus_read
[  230.006726] ++ETH w32 [f0026020] 00890000 from nb8800_mdio_read
[  230.012918] ++ETH w32 [f0026020] 80890000 from nb8800_mdio_read
[  230.019140] ++ETH r32 [f0026024] 00000200 from mdiobus_read
[  230.024977] libphy: mdiobus_read: addr=4 regnum=00000005 from genphy_read_status
[  230.032642] nb8800_mdio_read from mdiobus_read
[  230.037341] ++ETH w32 [f0026020] 00850000 from nb8800_mdio_read
[  230.043536] ++ETH w32 [f0026020] 80850000 from nb8800_mdio_read
[  230.049759] ++ETH r32 [f0026024] 000045e1 from mdiobus_read
[  230.055596] libphy: mdiobus_read: addr=4 regnum=00000004 from genphy_read_status
[  230.063260] nb8800_mdio_read from mdiobus_read
[  230.067958] ++ETH w32 [f0026020] 00840000 from nb8800_mdio_read
[  230.074274] ++ETH w32 [f0026020] 80840000 from nb8800_mdio_read
[  230.080529] ++ETH r32 [f0026024] 000015e1 from mdiobus_read
[  230.086405] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  230.094072] nb8800_mdio_read from mdiobus_read
[  230.098772] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  230.104965] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  230.111186] ++ETH r32 [f0026024] 0000796d from mdiobus_read
[  230.117024] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  230.124690] nb8800_mdio_read from mdiobus_read
[  230.129385] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  230.135579] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  230.141801] ++ETH r32 [f0026024] 0000796d from mdiobus_read
[  230.147663] libphy: mdiobus_read: addr=4 regnum=0000000a from genphy_read_status
[  230.155327] nb8800_mdio_read from mdiobus_read
[  230.160024] ++ETH w32 [f0026020] 008a0000 from nb8800_mdio_read
[  230.166218] ++ETH w32 [f0026020] 808a0000 from nb8800_mdio_read
[  230.172440] ++ETH r32 [f0026024] 00000000 from mdiobus_read
[  230.178277] libphy: mdiobus_read: addr=4 regnum=00000009 from genphy_read_status
[  230.185942] nb8800_mdio_read from mdiobus_read
[  230.190639] ++ETH w32 [f0026020] 00890000 from nb8800_mdio_read
[  230.196832] ++ETH w32 [f0026020] 80890000 from nb8800_mdio_read
[  230.203073] ++ETH r32 [f0026024] 00000200 from mdiobus_read
[  230.208914] libphy: mdiobus_read: addr=4 regnum=00000005 from genphy_read_status
[  230.216580] nb8800_mdio_read from mdiobus_read
[  230.221279] ++ETH w32 [f0026020] 00850000 from nb8800_mdio_read
[  230.227472] ++ETH w32 [f0026020] 80850000 from nb8800_mdio_read
[  230.233719] ++ETH r32 [f0026024] 000045e1 from mdiobus_read
[  230.239551] libphy: mdiobus_read: addr=4 regnum=00000004 from genphy_read_status
[  230.247215] nb8800_mdio_read from mdiobus_read
[  230.251913] ++ETH w32 [f0026020] 00840000 from nb8800_mdio_read
[  230.258106] ++ETH w32 [f0026020] 80840000 from nb8800_mdio_read
[  230.264353] ++ETH r32 [f0026024] 000015e1 from mdiobus_read
[  230.270199] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  230.277863] nb8800_mdio_read from mdiobus_read
[  230.282560] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  230.288752] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  230.294974] ++ETH r32 [f0026024] 0000796d from mdiobus_read
[  230.300813] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  230.308505] nb8800_mdio_read from mdiobus_read
[  230.313197] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  230.319390] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  230.325612] ++ETH r32 [f0026024] 0000796d from mdiobus_read
[  230.331448] libphy: mdiobus_read: addr=4 regnum=0000000a from genphy_read_status
[  230.339113] nb8800_mdio_read from mdiobus_read
[  230.343811] ++ETH w32 [f0026020] 008a0000 from nb8800_mdio_read
[  230.350003] ++ETH w32 [f0026020] 808a0000 from nb8800_mdio_read
[  230.356226] ++ETH r32 [f0026024] 00000000 from mdiobus_read
[  230.362066] libphy: mdiobus_read: addr=4 regnum=00000009 from genphy_read_status
[  230.369729] nb8800_mdio_read from mdiobus_read
[  230.374426] ++ETH w32 [f0026020] 00890000 from nb8800_mdio_read
[  230.380619] ++ETH w32 [f0026020] 80890000 from nb8800_mdio_read
[  230.386839] ++ETH r32 [f0026024] 00000200 from mdiobus_read
[  230.392675] libphy: mdiobus_read: addr=4 regnum=00000005 from genphy_read_status
[  230.400339] nb8800_mdio_read from mdiobus_read
[  230.405036] ++ETH w32 [f0026020] 00850000 from nb8800_mdio_read
[  230.411229] ++ETH w32 [f0026020] 80850000 from nb8800_mdio_read
[  230.417449] ++ETH r32 [f0026024] 000045e1 from mdiobus_read
[  230.423293] libphy: mdiobus_read: addr=4 regnum=00000004 from genphy_read_status
[  230.431000] nb8800_mdio_read from mdiobus_read
[  230.435699] ++ETH w32 [f0026020] 00840000 from nb8800_mdio_read
[  230.441894] ++ETH w32 [f0026020] 80840000 from nb8800_mdio_read
[  230.448116] ++ETH r32 [f0026024] 000015e1 from mdiobus_read
[  230.453977] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  230.461643] nb8800_mdio_read from mdiobus_read
[  230.466341] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  230.472536] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  230.478757] ++ETH r32 [f0026024] 0000796d from mdiobus_read
[  230.484594] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  230.492258] nb8800_mdio_read from mdiobus_read
[  230.496956] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  230.503150] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  230.509370] ++ETH r32 [f0026024] 0000796d from mdiobus_read
[  230.515207] libphy: mdiobus_read: addr=4 regnum=0000000a from genphy_read_status
[  230.522873] nb8800_mdio_read from mdiobus_read
[  230.527600] ++ETH w32 [f0026020] 008a0000 from nb8800_mdio_read
[  230.533793] ++ETH w32 [f0026020] 808a0000 from nb8800_mdio_read
[  230.540013] ++ETH r32 [f0026024] 00000000 from mdiobus_read
[  230.545851] libphy: mdiobus_read: addr=4 regnum=00000009 from genphy_read_status
[  230.553516] nb8800_mdio_read from mdiobus_read
[  230.558215] ++ETH w32 [f0026020] 00890000 from nb8800_mdio_read
[  230.564410] ++ETH w32 [f0026020] 80890000 from nb8800_mdio_read
[  230.570629] ++ETH r32 [f0026024] 00000200 from mdiobus_read
[  230.576467] libphy: mdiobus_read: addr=4 regnum=00000005 from genphy_read_status
[  230.584132] nb8800_mdio_read from mdiobus_read
[  230.588831] ++ETH w32 [f0026020] 00850000 from nb8800_mdio_read
[  230.595024] ++ETH w32 [f0026020] 80850000 from nb8800_mdio_read
[  230.601245] ++ETH r32 [f0026024] 000045e1 from mdiobus_read
[  230.607084] libphy: mdiobus_read: addr=4 regnum=00000004 from genphy_read_status
[  230.614750] nb8800_mdio_read from mdiobus_read
[  230.619448] ++ETH w32 [f0026020] 00840000 from nb8800_mdio_read
[  230.625642] ++ETH w32 [f0026020] 80840000 from nb8800_mdio_read
[  230.631865] ++ETH r32 [f0026024] 000015e1 from mdiobus_read
[  230.637710] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  230.645377] nb8800_mdio_read from mdiobus_read
[  230.650076] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  230.656288] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  230.662511] ++ETH r32 [f0026024] 0000796d from mdiobus_read
[  230.668350] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  230.676015] nb8800_mdio_read from mdiobus_read
[  230.680713] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  230.686907] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  230.693131] ++ETH r32 [f0026024] 0000796d from mdiobus_read
[  230.698968] libphy: mdiobus_read: addr=4 regnum=0000000a from genphy_read_status
[  230.706633] nb8800_mdio_read from mdiobus_read
[  230.711333] ++ETH w32 [f0026020] 008a0000 from nb8800_mdio_read
[  230.717555] ++ETH w32 [f0026020] 808a0000 from nb8800_mdio_read
[  230.723773] ++ETH r32 [f0026024] 00000000 from mdiobus_read
[  230.729612] libphy: mdiobus_read: addr=4 regnum=00000009 from genphy_read_status
[  230.737278] nb8800_mdio_read from mdiobus_read
[  230.741976] ++ETH w32 [f0026020] 00890000 from nb8800_mdio_read
[  230.748168] ++ETH w32 [f0026020] 80890000 from nb8800_mdio_read
[  230.754402] ++ETH r32 [f0026024] 00000200 from mdiobus_read
[  230.760240] libphy: mdiobus_read: addr=4 regnum=00000005 from genphy_read_status
[  230.767905] nb8800_mdio_read from mdiobus_read
[  230.772603] ++ETH w32 [f0026020] 00850000 from nb8800_mdio_read
[  230.778799] ++ETH w32 [f0026020] 80850000 from nb8800_mdio_read
[  230.785019] ++ETH r32 [f0026024] 000045e1 from mdiobus_read
[  230.790885] libphy: mdiobus_read: addr=4 regnum=00000004 from genphy_read_status
[  230.798548] nb8800_mdio_read from mdiobus_read
[  230.803245] ++ETH w32 [f0026020] 00840000 from nb8800_mdio_read
[  230.809438] ++ETH w32 [f0026020] 80840000 from nb8800_mdio_read
[  230.815661] ++ETH r32 [f0026024] 000015e1 from mdiobus_read
[  230.821508] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  230.829173] nb8800_mdio_read from mdiobus_read
[  230.833871] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  230.840066] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  230.846287] ++ETH r32 [f0026024] 0000796d from mdiobus_read
[  230.852127] libphy: mdiobus_read: addr=4 regnum=00000001 from genphy_update_link
[  230.859793] nb8800_mdio_read from mdiobus_read
[  230.864491] ++ETH w32 [f0026020] 00810000 from nb8800_mdio_read
[  230.870682] ++ETH w32 [f0026020] 80810000 from nb8800_mdio_read
[  230.876904] ++ETH r32 [f0026024] 0000796d from mdiobus_read
snip more lines

The regnum=5,4,1,1,a,9 logs keep repeating, endlessly.
Is that expected?

If anyone spots something fishy, I'd be extremely grateful for any leads.

Regards.

Re: Ethernet not working on a different SoC with same eth HW

[Andrew Lunn]

> The regnum=5,4,1,1,a,9 logs keep repeating, endlessly.
> Is that expected?

Yes, that is expected, if you are not using interrupts. The phylib
state machine polls the state of the PHY once per second to see if
there has been a link up/down.

      Andrew

Re: Ethernet not working on a different SoC with same eth HW

[Andrew Lunn]

On Mon, Oct 31, 2016 at 04:29:25PM +0100, Mason wrote:
> Hello everyone,
> 
> I'm using these net drivers:
> 
>   drivers/net/ethernet/aurora/nb8800.c
>   drivers/net/phy/at803x.c
> 
> With a smp8758 board, they work great.
> I've been trying to use them on a different board:
> 
>   same eth PHY (Atheros AR8035)
>   same eth MAC (Aurora SSN8800)
>   different SoC (same base address for MAC block)
> 
> It doesn't work

Rather vague. What does not work? Please describe the symptoms.

       Andrew

Re: Ethernet not working on a different SoC with same eth HW

[Mason]

On 31/10/2016 16:37, Andrew Lunn wrote:

>> The regnum=5,4,1,1,a,9 logs keep repeating, endlessly.
>> Is that expected?
> 
> Yes, that is expected, if you are not using interrupts. The phylib
> state machine polls the state of the PHY once per second to see if
> there has been a link up/down.

Interesting. But the logs are showing accesses much more frequent
than once per second, it seems... (?)

And an interrupt for the PHY is configured in the device tree:

&eth0 {
	#address-cells = <1>;
	#size-cells = <0>;
	phy-connection-type = "rgmii";
	phy-handle = <&eth0_phy>;

	/* Atheros AR8035 */
	eth0_phy: ethernet-phy@4 {
		compatible = "ethernet-phy-id004d.d072",
			     "ethernet-phy-ieee802.3-c22";
		interrupts = <37 IRQ_TYPE_EDGE_RISING>;
		reg = <4>;
	};
};

I'll add a log for the request_irq call.

Regards.

Re: Ethernet not working on a different SoC with same eth HW

[Andrew Lunn]

> I'll add a log for the request_irq call.

And take a look at /proc/interrupts

    Andrew

Re: Ethernet not working on a different SoC with same eth HW

[Mason]

On 31/10/2016 16:53, Andrew Lunn wrote:

>> I'll add a log for the request_irq call.
> 
> And take a look at /proc/interrupts

You're right, there does seem to be something wrong with the interrupts.

# cat /proc/interrupts 
           CPU0       
 20:      26285     GIC-0  29 Edge      twd
IPI0:          0  CPU wakeup interrupts
IPI1:          0  Timer broadcast interrupts
IPI2:          0  Rescheduling interrupts
IPI3:          0  Function call interrupts
IPI4:          0  CPU stop interrupts
IPI5:          0  IRQ work interrupts
IPI6:          0  completion interrupts
Err:          0

None of the expected platform interrupts (eth, phy, uart) are registered.

Thanks for pushing in a promising direction.

Regards.

Re: Ethernet not working on a different SoC with same eth HW

[Mason]

On 31/10/2016 17:28, Mason wrote:

> On 31/10/2016 16:53, Andrew Lunn wrote:
> 
>>> I'll add a log for the request_irq call.
>>
>> And take a look at /proc/interrupts
> 
> You're right, there does seem to be something wrong with the interrupts.

Having fixed that, I'm still unable to ping a box on the same
ethernet segment... Still investigating.

I think I may have spotted a potential issue in the Atheros driver.

	if (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID ||
	    phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) {
		ret = at803x_enable_rx_delay(phydev);
		if (ret < 0)
			return ret;
	}

Looking at this code, one might believe that "rgmii rx clock delay"
is only enabled when the user requests it (through DT).

http://www.redeszone.net/app/uploads/2014/04/AR8035.pdf
cf. PDF page 48

*However* this bit is set to 1 at reset (both HW and SW resets).
Thus, "rgmii rx clock delay" is always enabled, whether the user
requests it or not.

Could someone knowledgeable comment on the expected behavior of
enabling rgmii rx (and tx) clock delay?

https://en.wikipedia.org/wiki/Media-independent_interface#Reduced_gigabit_media-independent_interface

Regards.

Re: Ethernet not working on a different SoC with same eth HW

[Måns Rullgård]

Mason <slash.tmp@free.fr> writes:

> On 31/10/2016 17:28, Mason wrote:
>
>> On 31/10/2016 16:53, Andrew Lunn wrote:
>> 
>>>> I'll add a log for the request_irq call.
>>>
>>> And take a look at /proc/interrupts
>> 
>> You're right, there does seem to be something wrong with the interrupts.
>
> Having fixed that, I'm still unable to ping a box on the same
> ethernet segment... Still investigating.
>
> I think I may have spotted a potential issue in the Atheros driver.
>
> 	if (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID ||
> 	    phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) {
> 		ret = at803x_enable_rx_delay(phydev);
> 		if (ret < 0)
> 			return ret;
> 	}
>
> Looking at this code, one might believe that "rgmii rx clock delay"
> is only enabled when the user requests it (through DT).
>
> http://www.redeszone.net/app/uploads/2014/04/AR8035.pdf
> cf. PDF page 48
>
> *However* this bit is set to 1 at reset (both HW and SW resets).
> Thus, "rgmii rx clock delay" is always enabled, whether the user
> requests it or not.
>
> Could someone knowledgeable comment on the expected behavior of
> enabling rgmii rx (and tx) clock delay?

Clock delay is sometimes (depending on PCB layout) required to achieve
the correct timing between clock and data signals.  The delay can be
applied at the MAC or the PHY.  I'd start by finding out what the PCB
design expects or check the signals with a fast oscilloscope if you have
one.

-- 
Måns Rullgård

Re: Ethernet not working on a different SoC with same eth HW

[Mason]

On 04/11/2016 14:40, Måns Rullgård wrote:

> Mason <slash.tmp@free.fr> writes:
> 
>> On 31/10/2016 17:28, Mason wrote:
>>
>>> On 31/10/2016 16:53, Andrew Lunn wrote:
>>>
>>>>> I'll add a log for the request_irq call.
>>>>
>>>> And take a look at /proc/interrupts
>>>
>>> You're right, there does seem to be something wrong with the interrupts.
>>
>> Having fixed that, I'm still unable to ping a box on the same
>> ethernet segment... Still investigating.
>>
>> I think I may have spotted a potential issue in the Atheros driver.
>>
>> 	if (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID ||
>> 	    phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) {
>> 		ret = at803x_enable_rx_delay(phydev);
>> 		if (ret < 0)
>> 			return ret;
>> 	}
>>
>> Looking at this code, one might believe that "rgmii rx clock delay"
>> is only enabled when the user requests it (through DT).
>>
>> http://www.redeszone.net/app/uploads/2014/04/AR8035.pdf
>> cf. PDF page 48
>>
>> *However* this bit is set to 1 at reset (both HW and SW resets).
>> Thus, "rgmii rx clock delay" is always enabled, whether the user
>> requests it or not.
>>
>> Could someone knowledgeable comment on the expected behavior of
>> enabling rgmii rx (and tx) clock delay?
> 
> Clock delay is sometimes (depending on PCB layout) required to achieve
> the correct timing between clock and data signals.  The delay can be
> applied at the MAC or the PHY.  I'd start by finding out what the PCB
> design expects or check the signals with a fast oscilloscope if you have
> one.

Considering the ethernet DT bindings:

https://www.kernel.org/doc/Documentation/devicetree/bindings/net/ethernet.txt

Specifically, phy-mode values "rgmii", "rgmii-id", "rgmii-rxid", "rgmii-txid".

Assuming that "rxid" (rx internal delay) and "rx clock delay" are
in fact the same concept with different names, do you agree that
it would be unexpected for "rgmii rx clock delay" to be enabled
when a DTB specifies "rgmii" or "rgmii-txid" ?

Regards.

Re: Ethernet not working on a different SoC with same eth HW

[Andrew Lunn]

> Considering the ethernet DT bindings:
> 
> https://www.kernel.org/doc/Documentation/devicetree/bindings/net/ethernet.txt
> 
> Specifically, phy-mode values "rgmii", "rgmii-id", "rgmii-rxid", "rgmii-txid".
> 
> Assuming that "rxid" (rx internal delay) and "rx clock delay" are
> in fact the same concept with different names, do you agree that
> it would be unexpected for "rgmii rx clock delay" to be enabled
> when a DTB specifies "rgmii" or "rgmii-txid" ?

I agree with you. But fixing it is likely to break boards which
currently have "rgmii", but actually need the delay in order to work.

	  Andrew

Re: Ethernet not working on a different SoC with same eth HW

[Sebastian Frias]

On 11/04/2016 02:57 PM, Andrew Lunn wrote:
>> Considering the ethernet DT bindings:
>>
>> https://www.kernel.org/doc/Documentation/devicetree/bindings/net/ethernet.txt
>>
>> Specifically, phy-mode values "rgmii", "rgmii-id", "rgmii-rxid", "rgmii-txid".
>>
>> Assuming that "rxid" (rx internal delay) and "rx clock delay" are
>> in fact the same concept with different names, do you agree that
>> it would be unexpected for "rgmii rx clock delay" to be enabled
>> when a DTB specifies "rgmii" or "rgmii-txid" ?
> 
> I agree with you. But fixing it is likely to break boards which
> currently have "rgmii", but actually need the delay in order to work.
> 
> 	  Andrew
> 

I think you are right, if I disable the RX delay on 'drivers/net/phy/at803x.c'
I get RX errors when using the 'drivers/net/ethernet/aurora/nb8800.c' driver,
errors reported in function nb8800_poll()

if (IS_RX_ERROR(rxd->report))
{
   nb8800_rx_error(dev, rxd->report);
}

(this is on the same board Mason is discussing about)

Another thing to note is that 'drivers/net/ethernet/aurora/nb8800.c' is
currently checking PHY_INTERFACE_MODE_RGMII_TXID to add a TX clock output
delay.

Since a PHY, like the 'drivers/net/phy/at803x.c', will setup a TX delay if
phy-connection-type="rgmii-txid" on DT, the code in 'nb8800.c' may be adding
an additional (and possibly unwanted) delay, right?

Actually, I have a patch for 'nb8800.c' to remove the "additional" TX delay,
and I did not see regressions with it. I can post the patch as RFC if
you want.

One more thing, the "tx" and "rx" concepts are in reference to what?
Is "tx" at PHY driver to be matched by "rx" at Ethernet driver?

Best regards,

Sebastian

Re: Ethernet not working on a different SoC with same eth HW

[Måns Rullgård]

Andrew Lunn <andrew@lunn.ch> writes:

>> Considering the ethernet DT bindings:
>> 
>> https://www.kernel.org/doc/Documentation/devicetree/bindings/net/ethernet.txt
>> 
>> Specifically, phy-mode values "rgmii", "rgmii-id", "rgmii-rxid", "rgmii-txid".
>> 
>> Assuming that "rxid" (rx internal delay) and "rx clock delay" are
>> in fact the same concept with different names, do you agree that
>> it would be unexpected for "rgmii rx clock delay" to be enabled
>> when a DTB specifies "rgmii" or "rgmii-txid" ?
>
> I agree with you. But fixing it is likely to break boards which
> currently have "rgmii", but actually need the delay in order to work.

Does the internal delay here refer to the PHY or the MAC?  It's a
property of the MAC node after all.

-- 
Måns Rullgård

Re: Ethernet not working on a different SoC with same eth HW

[Mason]

On 04/11/2016 15:04, Måns Rullgård wrote:

> Andrew Lunn <andrew@lunn.ch> writes:
> 
>>> Considering the ethernet DT bindings:
>>>
>>> https://www.kernel.org/doc/Documentation/devicetree/bindings/net/ethernet.txt
>>>
>>> Specifically, phy-mode values "rgmii", "rgmii-id", "rgmii-rxid", "rgmii-txid".
>>>
>>> Assuming that "rxid" (rx internal delay) and "rx clock delay" are
>>> in fact the same concept with different names, do you agree that
>>> it would be unexpected for "rgmii rx clock delay" to be enabled
>>> when a DTB specifies "rgmii" or "rgmii-txid" ?
>>
>> I agree with you. But fixing it is likely to break boards which
>> currently have "rgmii", but actually need the delay in order to work.
> 
> Does the internal delay here refer to the PHY or the MAC?  It's a
> property of the MAC node after all.

Isn't there a one-to-one correspondence between MAC and PHY?

Can a MAC be connected to multiple PHYs?
Can a PHY be connected to multiple MACs?

If it is a one-to-one correspondence, then whether the
property is specified in the MAC or PHY node is just a
matter of presentation, IMHO.

Regards.

Re: Ethernet not working on a different SoC with same eth HW

[Andrew Lunn]

> > I agree with you. But fixing it is likely to break boards which
> > currently have "rgmii", but actually need the delay in order to work.
> 
> Does the internal delay here refer to the PHY or the MAC?  It's a
> property of the MAC node after all.

It is the PHY which applies the delay.

The phy-mode property is in the MAC part of the device tree binding,
but the delay is not the primary purpose of this property. Its primary
purpose, RGMII, RMII, SGMII, etc, is applicable to both the MAC and
the PHY. It probably would of been better to have the delays as a
separate property, but that is not how it is...

	 Andrew

Re: Ethernet not working on a different SoC with same eth HW

[Måns Rullgård]

Andrew Lunn <andrew@lunn.ch> writes:

>> > I agree with you. But fixing it is likely to break boards which
>> > currently have "rgmii", but actually need the delay in order to work.
>> 
>> Does the internal delay here refer to the PHY or the MAC?  It's a
>> property of the MAC node after all.
>
> It is the PHY which applies the delay.

Says who?  Some MACs can do it too.

> The phy-mode property is in the MAC part of the device tree binding,
> but the delay is not the primary purpose of this property. Its primary
> purpose, RGMII, RMII, SGMII, etc, is applicable to both the MAC and
> the PHY. It probably would of been better to have the delays as a
> separate property, but that is not how it is...

The connection type is obviously the same at both ends, so it doesn't
really matter where that is specified.  The delay can be applied at
either end or not at all, and it's anything but clear what the
properties are supposed to mean.

There is also no way to specify the amount of delay required even though
many devices support more than one value.

-- 
Måns Rullgård

Re: Ethernet not working on a different SoC with same eth HW

[Andrew Lunn]

On Fri, Nov 04, 2016 at 03:05:00PM +0000, Måns Rullgård wrote:
> Andrew Lunn <andrew@lunn.ch> writes:
> 
> >> > I agree with you. But fixing it is likely to break boards which
> >> > currently have "rgmii", but actually need the delay in order to work.
> >> 
> >> Does the internal delay here refer to the PHY or the MAC?  It's a
> >> property of the MAC node after all.
> >
> > It is the PHY which applies the delay.
> 
> Says who?

The source code.

>  Some MACs can do it too.

I'm sure they can. But look at the code. Nearly none do, and those
that do are potentially broken.
 
> There is also no way to specify the amount of delay required even though
> many devices support more than one value.

Those PHYs that which support variable delays add there own device
tree properties. See for example Micrel KSZ9021/KSZ9031 Gigabit Ethernet PHY

     Andrew

Re: Ethernet not working on a different SoC with same eth HW

[Måns Rullgård]

Andrew Lunn <andrew@lunn.ch> writes:

> On Fri, Nov 04, 2016 at 03:05:00PM +0000, Måns Rullgård wrote:
>> Andrew Lunn <andrew@lunn.ch> writes:
>> 
>> >> > I agree with you. But fixing it is likely to break boards which
>> >> > currently have "rgmii", but actually need the delay in order to work.
>> >> 
>> >> Does the internal delay here refer to the PHY or the MAC?  It's a
>> >> property of the MAC node after all.
>> >
>> > It is the PHY which applies the delay.
>> 
>> Says who?
>
> The source code.

There's source code that disagrees with that.  The Broadcom GENET
driver, for instance.

>>  Some MACs can do it too.
>
> I'm sure they can. But look at the code. Nearly none do, and those
> that do are potentially broken.

Those few drivers that do anything differently based on these values
enable clock delay in the MAC.  That's why I wrote the NB8800 driver the
way I did.

-- 
Måns Rullgård

Re: Ethernet not working on a different SoC with same eth HW

[Florian Fainelli]

On 11/04/2016 08:22 AM, Måns Rullgård wrote:
> Andrew Lunn <andrew@lunn.ch> writes:
> 
>> On Fri, Nov 04, 2016 at 03:05:00PM +0000, Måns Rullgård wrote:
>>> Andrew Lunn <andrew@lunn.ch> writes:
>>>
>>>>>> I agree with you. But fixing it is likely to break boards which
>>>>>> currently have "rgmii", but actually need the delay in order to work.
>>>>>
>>>>> Does the internal delay here refer to the PHY or the MAC?  It's a
>>>>> property of the MAC node after all.
>>>>
>>>> It is the PHY which applies the delay.
>>>
>>> Says who?
>>
>> The source code.
> 
> There's source code that disagrees with that.  The Broadcom GENET
> driver, for instance.

Correct, and in the case where the MAC adds the delay while transmitting
(because it supports that) the expectation is that the PHY would remove
such a delay internally, conversely, the PHY would introduce a delay
while transmitting back to the PHY, in order to produce the desired 90
degrees shift on the RGMII signals, and get reproduce the correct clock
and data alignment internally.

> 
>>>  Some MACs can do it too.
>>
>> I'm sure they can. But look at the code. Nearly none do, and those
>> that do are potentially broken.
> 
> Those few drivers that do anything differently based on these values
> enable clock delay in the MAC.  That's why I wrote the NB8800 driver the
> way I did.
> 

I don't really what is wrong with the nb8800 driver at the moment, so
maybe this is just a configuration issue with the Atheros PHY driver,
it's not like it has not given people headache judging by the recent
discussions...
-- 
Florian

Re: Ethernet not working on a different SoC with same eth HW

[Måns Rullgård]

Florian Fainelli <f.fainelli@gmail.com> writes:

> On 11/04/2016 08:22 AM, Måns Rullgård wrote:
>> Andrew Lunn <andrew@lunn.ch> writes:
>> 
>>> On Fri, Nov 04, 2016 at 03:05:00PM +0000, Måns Rullgård wrote:
>>>> Andrew Lunn <andrew@lunn.ch> writes:
>>>>
>>>>>>> I agree with you. But fixing it is likely to break boards which
>>>>>>> currently have "rgmii", but actually need the delay in order to work.
>>>>>>
>>>>>> Does the internal delay here refer to the PHY or the MAC?  It's a
>>>>>> property of the MAC node after all.
>>>>>
>>>>> It is the PHY which applies the delay.
>>>>
>>>> Says who?
>>>
>>> The source code.
>> 
>> There's source code that disagrees with that.  The Broadcom GENET
>> driver, for instance.
>
> Correct, and in the case where the MAC adds the delay while transmitting
> (because it supports that) the expectation is that the PHY would remove
> such a delay internally, conversely, the PHY would introduce a delay
> while transmitting back to the PHY, in order to produce the desired 90
> degrees shift on the RGMII signals, and get reproduce the correct clock
> and data alignment internally.
>
>> 
>>>>  Some MACs can do it too.
>>>
>>> I'm sure they can. But look at the code. Nearly none do, and those
>>> that do are potentially broken.
>> 
>> Those few drivers that do anything differently based on these values
>> enable clock delay in the MAC.  That's why I wrote the NB8800 driver the
>> way I did.
>> 
>
> I don't really what is wrong with the nb8800 driver at the moment, so
> maybe this is just a configuration issue with the Atheros PHY driver,
> it's not like it has not given people headache judging by the recent
> discussions...

We don't even know if the problems Mason is having are caused by
incorrect clock skew in the first place.  I'd suggest not patching
anything at all until he gets it working.

-- 
Måns Rullgård

Re: Ethernet not working on a different SoC with same eth HW

[Mason]

On 04/11/2016 17:55, Måns Rullgård wrote:

> Florian Fainelli <f.fainelli@gmail.com> writes:
> 
>> On 11/04/2016 08:22 AM, Måns Rullgård wrote:
>>> Andrew Lunn <andrew@lunn.ch> writes:
>>>
>>>> On Fri, Nov 04, 2016 at 03:05:00PM +0000, Måns Rullgård wrote:
>>>>> Andrew Lunn <andrew@lunn.ch> writes:
>>>>>
>>>>>>>> I agree with you. But fixing it is likely to break boards which
>>>>>>>> currently have "rgmii", but actually need the delay in order to work.
>>>>>>>
>>>>>>> Does the internal delay here refer to the PHY or the MAC?  It's a
>>>>>>> property of the MAC node after all.
>>>>>>
>>>>>> It is the PHY which applies the delay.
>>>>>
>>>>> Says who?
>>>>
>>>> The source code.
>>>
>>> There's source code that disagrees with that.  The Broadcom GENET
>>> driver, for instance.
>>
>> Correct, and in the case where the MAC adds the delay while transmitting
>> (because it supports that) the expectation is that the PHY would remove
>> such a delay internally, conversely, the PHY would introduce a delay
>> while transmitting back to the PHY, in order to produce the desired 90
>> degrees shift on the RGMII signals, and get reproduce the correct clock
>> and data alignment internally.
>>
>>>
>>>>>  Some MACs can do it too.
>>>>
>>>> I'm sure they can. But look at the code. Nearly none do, and those
>>>> that do are potentially broken.
>>>
>>> Those few drivers that do anything differently based on these values
>>> enable clock delay in the MAC.  That's why I wrote the NB8800 driver the
>>> way I did.
>>>
>>
>> I don't really what is wrong with the nb8800 driver at the moment, so
>> maybe this is just a configuration issue with the Atheros PHY driver,
>> it's not like it has not given people headache judging by the recent
>> discussions...
> 
> We don't even know if the problems Mason is having are caused by
> incorrect clock skew in the first place.  I'd suggest not patching
> anything at all until he gets it working.

All I said was:

> Assuming that "rxid" (rx internal delay) and "rx clock delay" are
> in fact the same concept with different names, do you agree that
> it would be unexpected for "rgmii rx clock delay" to be enabled
> when a DTB specifies "rgmii" or "rgmii-txid" ?

In parallel, Sebastian changed the DT of a 8758 board
from phy-connection-type = "rgmii";
to phy-connection-type = "rgmii-txid";

and this broke the Ethernet on 8758, although the "reference"
legacy 3.4 kernel does enable tx clock delay.

Regards.

Re: Ethernet not working on a different SoC with same eth HW

[Mason]

On 31/10/2016 16:29, Mason wrote:

> I'm using these net drivers:
> 
>   drivers/net/ethernet/aurora/nb8800.c
>   drivers/net/phy/at803x.c
> 
> With a smp8758 board, they work great.
> I've been trying to use them on a different board:
> 
>   same eth PHY (Atheros AR8035)
>   same eth MAC (Aurora SSN8800)
>   different SoC (same base address for MAC block)
> 
> It doesn't work, and I'm not sure where to look first...

Sweet baby Jesus on a pogo stick...

After oh-so-many days making increasingly random changes,
hoping something would magically un-break, we did find a
*local* commit for an exotic platform (chip emulator) that
was causing the issue.

Regards.

Re: Ethernet not working on a different SoC with same eth HW

[Mason]

On 08/11/2016 16:41, Mason wrote:

> On 31/10/2016 16:29, Mason wrote:
> 
>> I'm using these net drivers:
>>
>>   drivers/net/ethernet/aurora/nb8800.c
>>   drivers/net/phy/at803x.c
>>
>> With a smp8758 board, they work great.
>> I've been trying to use them on a different board:
>>
>>   same eth PHY (Atheros AR8035)
>>   same eth MAC (Aurora SSN8800)
>>   different SoC (same base address for MAC block)
>>
>> It doesn't work, and I'm not sure where to look first...
> 
> After oh-so-many days making increasingly random changes,
> hoping something would magically un-break, we did find a
> *local* commit for an exotic platform (chip emulator) that
> was causing the issue.

However... all is not well yet :-(

A) When the board is connected to a Gigabit switch, it is able to
complete the DHCP dance. But this takes around 5 seconds,
(with several requests timing out).

Whereas the same board running an ugly 3.4 kernel (which Mans called
"quite hideous even by evil vendor standards") completes the DHCP
dance in under a second.

B) When the board is connected to a Fast Ethernet switch, the DHCP
dance times out forever. (Whereas this works on the 3.4 kernel.)

C) When the board is connected to a Gigabit switch, then plugged
into the Fast Ethernet switch, then back into the Gigabit switch,
network connectivity is lost forever.

We've started examining the differences in phy and net frameworks
between 3.4 and 4.9 but that's an atom in a haystack.

To be continued...

Regards.