root@am335x-evm:~# ptp4l -i hsr0 -f ptp_slave.cfg -m -s
option slaveOnly is deprecated, please use clientOnly instead
ptp4l[969.608]: ioctl SIOCETHTOOL failed: Operation not supported
ptp4l[969.610]: selected /dev/ptp0 as PTP clock
ptp4l[969.672]: port 1 (hsr0): INITIALIZING to LISTENING on INIT_COMPLETE
ptp4l[969.675]: port 0 (/var/run/ptp4l): INITIALIZING to LISTENING on INIT_COMPLETE
ptp4l[969.677]: port 0 (/var/run/ptp4lro): INITIALIZING to LISTENING on INIT_COMPLETE
ptp4l[970.115]: port 1 (hsr0): new foreign master 5e9302.fffe.0702f6-1
ptp4l[972.115]: selected best master clock 5e9302.fffe.0702f6
ptp4l[972.115]: port 1 (hsr0): LISTENING to UNCALIBRATED on RS_SLAVE