On 6/12/2018 2:51 AM, Arthur Dent wrote:
A brief update: On the Cyclone V SoC device the clk_ptp_ref can either be the internal emac clock (derivative of the osc1_clk) or an external clock (e.g. from the fpga). I need to use an external clock, but the stmmac drivers in kernel version 4.1.22 appears to only support the internal clock. This seems to be fixed in later kernel versions (e.g .4.18), but when using version 4.18 linuxptp generates error messages in my system: ptp4l -m -q -i eth0 -H -s: socfpga-dwmac ff702000.ethernet eth0: No support for HW time stamping ptp4l[36.915]: ioctl SIOCSHWTSTAMP failed: Operation not supported ptp4l[36.915]: port 1: INITIALIZING to FAULTY on FAULT_DETECTED (FT_UNSPECIFIED) ptp4l[36.915]: port 0: INITIALIZING to LISTENING on INIT_COMPLETE
G'day Arthir,
Haven't used the ptp functional for a while. All used to work on the latest kernel for SocFPGA C-V. What does "ethtool -T eth0" show for the capabilities? -- Regards Phil Reid ElectroMagnetic Imaging Technology Pty Ltd Development of Geophysical Instrumentation & Software www.electromag.com.au 3 The Avenue, Midland WA 6056, AUSTRALIA Ph: +61 8 9250 8100 Fax: +61 8 9250 7100 Email: pr...@electromag.com.au _______________________________________________ Linuxptp-users mailing list Linuxptp-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linuxptp-users
