phy

lixiating00

重新设计的底板，网口phy更换为裕太的YT8512。系统启动后能正常识别mdio通讯正常，但是系统一直报link is up / link is down，并且无法ping完成，有知道是什么问题的吗:handshake

[ 1040.490160] libphy: 1c0b080.mdio-mii:01 - Link is Down
[ 1041.570170] libphy: 1c0b080.mdio-mii:01 - Link is Up - 10/Full
[ 1047.810307] libphy: 1c0b080.mdio-mii:01 - Link is Down
[ 1048.890429] libphy: 1c0b080.mdio-mii:01 - Link is Up - 10/Full
[ 1050.970355] libphy: 1c0b080.mdio-mii:01 - Link is Down
[ 1072.570368] libphy: 1c0b080.mdio-mii:01 - Link is Up - 10/Full
[ 1074.650160] libphy: 1c0b080.mdio-mii:01 - Link is Down
[ 1075.730430] libphy: 1c0b080.mdio-mii:01 - Link is Up - 10/Full
[ 1077.810289] libphy: 1c0b080.mdio-mii:01 - Link is Down
[ 1083.210322] libphy: 1c0b080.mdio-mii:01 - Link is Up - 10/Full
[ 1085.290312] libphy: 1c0b080.mdio-mii:01 - Link is Down
[ 1087.450433] libphy: 1c0b080.mdio-mii:01 - Link is Up - 10/Full
[ 1089.530319] libphy: 1c0b080.mdio-mii:01 - Link is Down
[ 1090.610452] libphy: 1c0b080.mdio-mii:01 - Link is Up - 10/Full
[ 1094.770315] libphy: 1c0b080.mdio-mii:01 - Link is Down
[ 1104.490449] libphy: 1c0b080.mdio-mii:01 - Link is Up - 10/Full
[ 1106.570241] libphy: 1c0b080.mdio-mii:01 - Link is Down
[ 1118.450434] libphy: 1c0b080.mdio-mii:01 - Link is Up - 10/Full
[ 1120.530318] libphy: 1c0b080.mdio-mii:01 - Link is Down
[ 1133.490434] libphy: 1c0b080.mdio-mii:01 - Link is Up - 10/Full
[ 1135.570280] libphy: 1c0b080.mdio-mii:01 - Link is Down
[ 1142.050437] libphy: 1c0b080.mdio-mii:01 - Link is Up - 10/Full
[ 1144.130244] libphy: 1c0b080.mdio-mii:01 - Link is Down
[ 1152.770172] libphy: 1c0b080.mdio-mii:01 - Link is Up - 10/Full
[ 1154.850242] libphy: 1c0b080.mdio-mii:01 - Link is Down
[ 1161.330281] libphy: 1c0b080.mdio-mii:01 - Link is Up - 10/Full
[ 1163.410176] libphy: 1c0b080.mdio-mii:01 - Link is Down
[ 1187.170373] libphy: 1c0b080.mdio-mii:01 - Link is Up - 10/Full
[ 1193.410160] libphy: 1c0b080.mdio-mii:01 - Link is Down
[ 1194.490171] libphy: 1c0b080.mdio-mii:01 - Link is Up - 10/Full
[ 1198.650160] libphy: 1c0b080.mdio-mii:01 - Link is Down
[ 1205.130434] libphy: 1c0b080.mdio-mii:01 - Link is Up - 10/Full
[ 1207.210306] libphy: 1c0b080.mdio-mii:01 - Link is Down
[ 1219.090436] libphy: 1c0b080.mdio-mii:01 - Link is Up - 10/Full
[ 1221.170206] libphy: 1c0b080.mdio-mii:01 - Link is Down
[ 1230.890430] libphy: 1c0b080.mdio-mii:01 - Link is Up - 10/Full
[ 1232.970160] libphy: 1c0b080.mdio-mii:01 - Link is Down
[ 1239.450327] libphy: 1c0b080.mdio-mii:01 - Link is Up - 10/Full
[ 1241.530314] libphy: 1c0b080.mdio-mii:01 - Link is Down
[ 1251.250434] libphy: 1c0b080.mdio-mii:01 - Link is Up - 10/Full
[ 1253.330313] libphy: 1c0b080.mdio-mii:01 - Link is Down
[ 1259.810172] libphy: 1c0b080.mdio-mii:01 - Link is Up - 10/Full
[ 1261.890159] libphy: 1c0b080.mdio-mii:01 - Link is Down
[ 1265.130387] libphy: 1c0b080.mdio-mii:01 - Link is Up - 10/Full
[ 1267.210330] libphy: 1c0b080.mdio-mii:01 - Link is Down
[ 1275.850172] libphy: 1c0b080.mdio-mii:01 - Link is Up - 10/Full
[ 1277.930160] libphy: 1c0b080.mdio-mii:01 - Link is Down
[ 1281.170386] libphy: 1c0b080.mdio-mii:01 - Link is Up - 10/Full
[ 1283.250315] libphy: 1c0b080.mdio-mii:01 - Link is Down
[ 1290.810320] libphy: 1c0b080.mdio-mii:01 - Link is Up - 10/Full
[ 1292.890314] libphy: 1c0b080.mdio-mii:01 - Link is Down
[ 1296.130288] libphy: 1c0b080.mdio-mii:01 - Link is Up - 10/Full

lixiating00

系统启动日志

zhichao

您这个是百兆网口配置吗，打印信息里是mii，但是裕泰8521不是千兆网卡吗

lixiating00

zhichao 发表于 2022-2-14 17:37
您这个是百兆网口配置吗，打印信息里是mii，但是裕泰8521不是千兆网卡吗

我们选的这款是8512H手册里描述的是100M

zhichao

检查一下芯片的电路，看看外围电路，mdio总线是否有有问题，可以量一下波形