Re: [Linuxptp-users] LinuxPTP on Cyclone V SoC

[Phil R. <pr...@el...>]

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...@el...