On Wed, Jun 05, 2019 at 06:55:18PM +0000, Shalom Toledo wrote: > On 05/06/2019 20:23, Richard Cochran wrote: > > On Wed, Jun 05, 2019 at 11:30:06AM +0000, Shalom Toledo wrote: > >> On 04/06/2019 17:17, Richard Cochran wrote: > >>> On Mon, Jun 03, 2019 at 03:12:39PM +0300, Ido Schimmel wrote: > >>>> From: Shalom Toledo <shal...@mellanox.com> > >>>> > >>>> The MTUTC register configures the HW UTC counter. > >>> > >>> Why is this called the "UTC" counter? > >>> > >>> The PTP time scale is TAI. Is this counter intended to reflect the > >>> Linux CLOCK_REALTIME system time? > >> > >> Exactly. The hardware doesn't have the ability to convert the FRC to UTC, > >> so > >> we, as a driver, need to do it and align the hardware with this value. > > > > What does "FRC" mean? > > Free Running Counter
Okay, so then you want to convert it into TAI (for PTP) rather than UTC. Thanks, Richard
