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/bf171f01afe31f0c593deb55b96c3cb9e20cd6dd_ > > <https://github.com/torvalds/linux/commit/bf171f01afe31f0c593deb55b96c3cb9e20cd6dd_> > > > <https://github.com/torvalds/linux/commit/bf171f01afe31f0c593deb55b96c3cb9e20cd6dd > > <https://github.com/torvalds/linux/commit/bf171f01afe31f0c593deb55b96c3cb9e20cd6dd>>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/19d857c9038e5c07db8f8cc02b5ad0cd0098714f > > <https://github.com/torvalds/linux/commit/19d857c9038e5c07db8f8cc02b5ad0cd0098714f> > > > <https://github.com/torvalds/linux/commit/19d857c9038e5c07db8f8cc02b5ad0cd0098714f > > <https://github.com/torvalds/linux/commit/19d857c9038e5c07db8f8cc02b5ad0cd0098714f>>_ > > > > 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/734e00fa02eff5003827abc06a7ebf9449349109 > > <https://github.com/torvalds/linux/commit/734e00fa02eff5003827abc06a7ebf9449349109> > > https://github.com/torvalds/linux/commit/e6dbe1eb2db0d7a14991c06278dd3030c45fb825 > > <https://github.com/torvalds/linux/commit/e6dbe1eb2db0d7a14991c06278dd3030c45fb825> > > https://github.com/torvalds/linux/commit/43569814fa35b2ae68f09780c4ee3d4a182711e9 > > <https://github.com/torvalds/linux/commit/43569814fa35b2ae68f09780c4ee3d4a182711e9> > > https://github.com/torvalds/linux/commit/27015f8c17578e14b3c6cc098b915b0f8db3ac36 > > <https://github.com/torvalds/linux/commit/27015f8c17578e14b3c6cc098b915b0f8db3ac36> > > > -- > 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
