• Wei Fang's avatar
    net: fec: Add support for periodic output signal of PPS · 350749b9
    Wei Fang authored
    This patch adds the support for configuring periodic output
    signal of PPS. So the PPS can be output at a specified time
    and period.
    For developers or testers, they can use the command "echo
    <channel> <start.sec> <start.nsec> <period.sec> <period.
    nsec> > /sys/class/ptp/ptp0/period" to specify time and
    period to output PPS signal.
    Notice that, the channel can only be set to 0. In addtion,
    the start time must larger than the current PTP clock time.
    So users can use the command "phc_ctl /dev/ptp0 -- get" to
    get the current PTP clock time before.
    Signed-off-by: default avatarWei Fang <wei.fang@nxp.com>
    Acked-by: default avatarRichard Cochran <richardcochran@gmail.com>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    350749b9
fec_ptp.c 22.4 KB