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IT LAN PHY DP83867 LAN up/down

客户产线试产15pcs,发现6pcs LAN up/down fail. 具体为:在系统下将LAN disable 再enable后,LAN无功能。需重启或多次enable后功能才OK。

另使用RD手上板卡测试4pcs都可复制到问题。(TI LAN PHY DP83867IRRGZT)

1:使用环境,android6.0(kernel3.10),ifconfig eth0 donw/up之后就会出问题,

        随机性的,部分板卡很容易出问题,有些板卡不太容易出问题

2:针对这颗phy,config了如下register:

        //address mask value

        0x0014 0x200 0x200

        0x0018 0xfff 0x65b

        0x001e 0x200 0x200

        0x0032 0x3 0x3

        0x0086 0xff 0x80

        0x0170 0x1f00 0x0000