Hi Phil, What kernel version are you running to successfully use HPS EMAC with HW timestamping? Instead of trying to backport the ptp changes (your commit from Dec 2015) to the stmmac driver, I compiled and tried to run kernel v4.5 which already has those changes (among others). But now I'm back to getting the clock jumped forward or running faster than expected messages, and the master offset just increases indefinitely.
I had changed these 2 lines of my altera-generated DTS per recommendation from another user who was using 4.1.22-altera-ltsi: clocks = <&l4_mp_clk &arria10_hps_0_eosc1>; clock-names = "stmmaceth", "clk_ptp_ref" I added both the latter parameters from above. I was surprised to see the driver chosen upon boot was as follows (previously with 4.1.22-altera-ltsi): driver -> ../../../../bus/platform/drivers/socfpga-dwmac of_node -> ../../../../firmware/devicetree/base/sopc@0/ethernet@0xff800000 So then I just get: ptp4l[776.919]: clockcheck: clock jumped forward or running faster than expected! ptp4l[776.958]: master offset -2640 s0 freq +7080 path delay -1160 ptp4l[776.958]: port 1: SLAVE to UNCALIBRATED on SYNCHRONIZATION_FAULT ptp4l[777.919]: clockcheck: clock jumped forward or running faster than expected! ptp4l[777.958]: master offset -12520 s0 freq +7080 path delay 5040 ptp4l[778.919]: clockcheck: clock jumped forward or running faster than expected! ptp4l[778.958]: master offset -22400 s0 freq +7080 path delay 11240 ptp4l[779.919]: clockcheck: clock jumped forward or running faster than expected! ptp4l[779.958]: master offset -26000 s0 freq +7080 path delay 11240 ptp4l[780.919]: clockcheck: clock jumped forward or running faster than expected! ptp4l[780.958]: master offset -29180 s0 freq +7080 path delay 10580 ptp4l[781.919]: clockcheck: clock jumped forward or running faster than expected! Thank you, John L. -----Original Message----- From: Phil Reid [mailto:pr...@electromag.com.au] Sent: Tuesday, May 23, 2017 12:54 AM To: Baya Oussena <baya.ouss...@gmail.com> Cc: linuxptp-users@lists.sourceforge.net Subject: Re: [Linuxptp-users] Adding LinuxPTP to Arria 10 SoC G'day Baya, On 22/05/2017 15:16, Baya Oussena wrote: > Hallo Reid, > > I am about to use PTP on my Altera Cyclone V. I want to use the altera > 1588 solution IP core. Iam using quaturs to set my system .. Please > could you let me know what variable I should enable in the configuration, also which PTP open software do you use. Will it work by using the PTP Linux one? or is there a version for NIOS Altera. I uses the HPS EMAC, with linuxptp 1.6 The newer quartus versions allow exporting of the ptp fpga interface even when using the dedicated hps pins if that helps. Not sure of anything for the NIOS or Altera softcore EMAC. > > I thank you in advance for your help, > Baya > > > 2017-05-22 7:17 GMT+02:00 Phil Reid <pr...@electromag.com.au <mailto:pr...@electromag.com.au>>: > > On 18/05/2017 23:29, Hunter Olson wrote: > > John, > > > > I'm going through the same troubles right now on Altera's Cyclone V SOC platform. > > > > I've found that if no PTP clock is specified for the emac entry in your device tree, the stmmac driver defaults to expect the emac clock (250Mhz), but it > seems > > Altera is feeding in the eosc1 clock (25mhz). If you run the testptp application, you'll see the ptp clock is running at 1/10th speed. This is causing > ptp4l > > to throw those 'clockcheck' warnings that you're seeing. > > > > See _https://github.com/torvalds/linux/commit/bf171f01afe31f0c593deb55b96c3cb9 e20cd6dd_ > <https://github.com/torvalds/linux/commit/bf171f01afe31f0c593deb55b96c3cb9 e20cd6dd_> > > <https://github.com/torvalds/linux/commit/bf171f01afe31f0c593deb55b96c3cb9 e20cd6dd > <https://github.com/torvalds/linux/commit/bf171f01afe31f0c593deb55b96c3cb9 e20cd6dd>>for how to add the ptp clock to your device tree, allowing the driver to > grab > > the correct ptp clock rate. > > > > I also backported to Altera's 4.1.22 some ptp related commits that show up in mainline kernel 4.5, such as: > > _https://github.com/torvalds/linux/commit/19d857c9038e5c07db8f8cc02b5ad0cd 0098714f > <https://github.com/torvalds/linux/commit/19d857c9038e5c07db8f8cc02b5ad0cd 0098714f> > > <https://github.com/torvalds/linux/commit/19d857c9038e5c07db8f8cc02b5ad0cd 0098714f > <https://github.com/torvalds/linux/commit/19d857c9038e5c07db8f8cc02b5ad0cd 0098714f>>_ > > > > Like you noticed, I had to bump ptp4l's tx_timestamp_timeout up to 100. > > > > Still testing, but it appears LinuxPTP H/W timestamping works after these changes. > > From memory there where also issues with the ptp clk config and resets with those older kernels. > Some related patches to things I had tofix to get it going.. > > > https://github.com/torvalds/linux/commit/734e00fa02eff5003827abc06a7ebf944 9349109 > <https://github.com/torvalds/linux/commit/734e00fa02eff5003827abc06a7ebf94 49349109> > https://github.com/torvalds/linux/commit/e6dbe1eb2db0d7a14991c06278dd3030c 45fb825 > <https://github.com/torvalds/linux/commit/e6dbe1eb2db0d7a14991c06278dd3030 c45fb825> > https://github.com/torvalds/linux/commit/43569814fa35b2ae68f09780c4ee3d4a1 82711e9 > <https://github.com/torvalds/linux/commit/43569814fa35b2ae68f09780c4ee3d4a 182711e9> > https://github.com/torvalds/linux/commit/27015f8c17578e14b3c6cc098b915b0f8 db3ac36 > > <https://github.com/torvalds/linux/commit/27015f8c17578e14b3c6cc098b91 > 5b0f8db3ac36> > > > -- > Regards > Phil Reid > > > -------------------------------------------------------------------------- ---- > Check out the vibrant tech community on one of the world's most > engaging tech sites, Slashdot.org! http://sdm.link/slashdot > _______________________________________________ > Linuxptp-users mailing list > Linuxptp-users@lists.sourceforge.net <mailto:Linuxptp-users@lists.sourceforge.net> > https://lists.sourceforge.net/lists/listinfo/linuxptp-users > <https://lists.sourceforge.net/lists/listinfo/linuxptp-users> > > -- 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 -------------------------------------------------------------------------- ---- Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Linuxptp-users mailing list Linuxptp-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linuxptp-users ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Linuxptp-users mailing list Linuxptp-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linuxptp-users
