On 5/13/2020 5:34 AM, Oleksij Rempel wrote: > Add initial cable testing support. > This PHY needs only 100usec for this test and it is recommended to run it > before the link is up. For now, provide at least ethtool support, so it > can be tested by more developers. > > This patch was tested with TJA1102 PHY with following results: > - No cable, is detected as open > - 1m cable, with no connected other end and detected as open > - a 40m cable (out of spec, max lenght should be 15m) is detected as OK. > > Current patch do not provide polarity test support. This test would > indicate not proper wire connection, where "+" wire of main phy is > connected to the "-" wire of the link partner. > > Signed-off-by: Oleksij Rempel <o.rempel@xxxxxxxxxxxxxx> Reviewed-by: Florian Fainelli <f.fainelli@xxxxxxxxx> -- Florian
