root@am65xx-evm:~# phc2sys -s CLOCK_REALTIME -c eth1 -O 0 -R 10 -m
phc2sys[419.116]: eth1 sys offset -1606363686296429693 s0 freq      +0 delay   3140
phc2sys[419.217]: eth1 sys offset -1606363686296429692 s1 freq     +10 delay   3135
phc2sys[419.318]: eth1 sys offset  -1002954 s2 freq -1002944 delay   3140
phc2sys[419.418]: eth1 sys offset   -902331 s2 freq -1203207 delay   3135
phc2sys[419.518]: eth1 sys offset   -781683 s2 freq -1353259 delay   3130
...
phc2sys[4435.800]: eth1 sys offset         4 s2 freq     +37 delay   3135
phc2sys[4435.900]: eth1 sys offset         2 s2 freq     +37 delay   3140
phc2sys[4436.001]: eth1 sys offset         9 s2 freq     +44 delay   3135
phc2sys[4436.101]: clockcheck: clock jumped backward or running slower than expected!
phc2sys[4436.101]: eth1 sys offset -8388608000001 s0 freq     +44 delay   3140
phc2sys[4436.201]: eth1 sys offset -8388608000000 s2 freq     +48 delay   3135
phc2sys[4436.302]: eth1 sys offset -8388608000003 s2 freq -10000000 delay   3130
...
phc2sys[8764.300]: eth1 sys offset -8345330518489 s2 freq -10000000 delay   3145
phc2sys[8764.400]: eth1 sys offset -8345329515649 s2 freq -10000000 delay   3140
phc2sys[8764.501]: eth1 sys offset -8345328512686 s2 freq -10000000 delay   3140
phc2sys[8764.601]: clockcheck: clock jumped forward or running faster than expected!
phc2sys[8764.601]: eth1 sys offset 43280490493 s0 freq -10000000 delay   3130
phc2sys[8764.701]: eth1 sys offset 43281493908 s2 freq +9900039 delay   3140
phc2sys[8764.802]: eth1 sys offset 43280501276 s2 freq +10000000 delay   3135
...
phc2sys[13150.423]: eth1 sys offset        -7 s2 freq     -28 delay   3130
phc2sys[13150.524]: eth1 sys offset         1 s2 freq     -22 delay   3170
phc2sys[13150.526]: eth1 sys offset        -8 s2 freq     -30 delay   3145