Hi ,
We are trying to interface DP83867 ethernet phy to zynq processor in rgmii mode.
Linux kernel version used is 4.19.Generic phy driver is used to configure phy.
Ethernet stays in loopback mode.
Same behavior is seen when phy is configured for digital,analog, and external loop back mode also.
When the phy registers are read loopback mode is disabled.On MAC side also loopback mode is disabled.
Phy register values are as follows
REG 0 = 140
REG 1 = 7949
REG 2 = 2000
REG 3 = A231
REG 4 = 1E1
REG 5 = 0
REG 6 = 64
REG 7 = 2001
REG 8 = 0
REG 9 = 1300
REG a = 0
REG b = 0
REG c = 0
REG d = 0
REG e = 0
REG f = 3000
REG 10 = 5448
REG 11 = AB02
Suggestions to disable loopback would be helpful.
Regards,
sandeep