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Tool/software: Code Composer Studio
When I was running the IPC demo on EVMK2E using the cutecom, there were some information shown below which I didn't know.
[ 424.784751] libphy: 24200f00.mdio:00 - Link is Down
[ 437.771208] libphy: 24200f00.mdio:00 - Link is Up - 100/Full
[ 441.767047] libphy: 24200f00.mdio:00 - Link is Down
[ 447.760809] libphy: 24200f00.mdio:00 - Link is Up - 100/Full
[ 451.756647] libphy: 24200f00.mdio:00 - Link is Down
[ 452.755583] libphy: 24200f00.mdio:00 - Link is Up - 100/Full
[ 456.751421] libphy: 24200f00.mdio:00 - Link is Down
[ 457.750383] libphy: 24200f00.mdio:00 - Link is Up - 100/Full
[ 461.746222] libphy: 24200f00.mdio:00 - Link is Down
[ 462.745184] libphy: 24200f00.mdio:00 - Link is Up - 100/Full
[ 464.743102] libphy: 24200f00.mdio:00 - Link is Down
[ 466.741024] libphy: 24200f00.mdio:00 - Link is Up - 100/Full
[ 468.738916] libphy: 24200f00.mdio:00 - Link is Down
[ 469.737878] libphy: 24200f00.mdio:00 - Link is Up - 100/Full
[ 473.733716] libphy: 24200f00.mdio:00 - Link is Down
[ 474.732678] libphy: 24200f00.mdio:00 - Link is Up - 100/Full
[ 494.711852] libphy: 24200f00.mdio:00 - Link is Down
[ 513.692043] libphy: 24200f00.mdio:00 - Link is Up - 100/Full
How to make these disappear. And what is the meaning of these information.
thanks,
suafie
Hi, Suafie,
It's a bit odd. This symptom doesn't usually appear on K2E, but K2H. Is this a TI K2E EVM or a custom board? Please refer to "K2HK EVM Gigabit MDC/MDIO Signal Integrity Issue" section in NetCP driver guide,
and give it a try to disable mdio to see if it helps.
Rex