Re: [Linuxptp-users] PHYs supporting HW timestamping

2019-02-02 Thread Arthur Dent
nt" Cc: "Wolfgang Hennig" , linuxptp-users@lists.sourceforge.net Subject: Re: [Linuxptp-users] PHYs supporting HW timestamping On Thu, Jan 24, 2019 at 03:22:58PM +0100, Arthur Dent wrote: > I addition to /dev/ptp0 I also have/dev/ptp1 (for the MAC). Can this confuse > the system?

Re: [Linuxptp-users] PHYs supporting HW timestamping

2019-01-24 Thread Richard Cochran
On Thu, Jan 24, 2019 at 03:22:58PM +0100, Arthur Dent wrote: > I addition to /dev/ptp0 I also have/dev/ptp1 (for the MAC). Can this confuse > the system? I read somewhere that the MACs PHC must be disabled...?  Yes, that is right. Disable the MAC's PHC driver or rip out its code. Thanks, Richar

Re: [Linuxptp-users] PHYs supporting HW timestamping

2019-01-24 Thread Arthur Dent
nesday, January 23, 2019 at 6:02 PM From: "Wolfgang Hennig" To: "Arthur Dent" Cc: linuxptp-users@lists.sourceforge.net Subject: Re: [Linuxptp-users] PHYs supporting HW timestamping I went through this some time ago with a Zynq SoC (MicroZed board). Attached is a summary of the ste

Re: [Linuxptp-users] PHYs supporting HW timestamping

2019-01-23 Thread Arthur Dent
Sent: Tuesday, January 22, 2019 at 12:26 AM From: "David Mirabito" To: "Arthur Dent" Cc: linuxptp-users@lists.sourceforge.net Subject: Re: [Linuxptp-users] PHYs supporting HW timestamping It's not on the list (probably due to not being ptp-ready "out of the box" u

Re: [Linuxptp-users] PHYs supporting HW timestamping

2019-01-21 Thread David Mirabito via Linuxptp-users
It's not on the list (probably due to not being ptp-ready "out of the box" under Linux) but Microsemi's VSC8572 (nee Vitesse) and family could do the job (for 2-step PTP). https://www.microsemi.com/product-directory/gigabit-ethernet-phys/3905-vsc8572 For various reasons we ended up not using this

Re: [Linuxptp-users] PHYs supporting HW timestamping

2019-01-21 Thread Timo Korthals
prefer to have a PHY with a 1Gb interface if possible. BR AD Sent: Monday, January 21, 2019 at 3:14 PM From: "Lynch, Mike" To: "Arthur Dent" Subject: RE: RE: [Linuxptp-users] PHYs supporting HW timestamping It sounds like you are doing something very similar to what I

Re: [Linuxptp-users] PHYs supporting HW timestamping

2019-01-21 Thread Arthur Dent
have not yet interfaced DP83640 since I would prefer to have a PHY with a 1Gb interface if possible. BR AD   Sent: Monday, January 21, 2019 at 3:14 PM From: "Lynch, Mike" To: "Arthur Dent" Subject: RE: RE: [Linuxptp-users] PHYs supporting HW timestamping It sounds like you

Re: [Linuxptp-users] PHYs supporting HW timestamping

2019-01-21 Thread Arthur Dent
.  My goal is to get down to 10-20ns 1PPS jitter. I am using a high stability external PTP clock reference for both master and slave. BR AD > Sent: Monday, January 21, 2019 at 2:15 PM > From: "Lynch, Mike" > To: "Arthur Dent" > Subject: RE: [Linuxptp-users] PHYs su

[Linuxptp-users] PHYs supporting HW timestamping

2019-01-21 Thread Arthur Dent
Hi On my Cyclone V SoC board I have ptp running with HW timestamping in MAC (stmmac), but I need even better accuracy, i.e. hardware timestamping in PHY. Is my only option to use TI’s DP83640 PHY (which only supports 100Mb) or am I reading the information on http://linuxptp.sourceforge.net 0inco