Hello Daniel,
yes, i have running the PTP on Cyclone V and Linux 4.14.71. It was the attached patch necessary. I think you should see in dmesg a hint in the case that patch is necessary.
I think your problem is more a wrong setting in your Dev-Tree or wrong connection in fpga. Could you please send me your Dev-Tree and your dmesg printout for verify this?
Best regards,
Mario
Von: "Zuckerbrod, Daniel" <dzuckerb...@textronsystems.com>
An: "linuxptp-users@lists.sourceforge.net" <linuxptp-users@lists.sourceforge.net>
Betreff: Re: [Linuxptp-users] Stratix 10 & PTP
I have tried to move to Linux Kernel 5.7.0 (intel-socfpga) and ran into the same issues. Does anyone have a working PTP implementation in an Intel FPGA?
From: Zuckerbrod, Daniel
Sent: Monday, August 10, 2020 9:27 AM
To: linuxptp-users@lists.sourceforge.net
Subject: Stratix 10 & PTP
I am using an Intel/Altera Stratix 10 and would like to use the ARM HPS EMAC PTP interface. I am providing a 100 MHz to the s10_hps_emac_ptp_ref_clock_clk with plans to use the PTP timestamp in the FPGA fabric. I can see the timestamp serially shift out of the ARM as expected.
However, no matter what I change in the device tree I seem to always have issues using hardware timestamping (./ptp4l -m -s -i eth1 -H).
Software timestamping always works without issue (./ptp4l -m -s -i eth1 -S).
I am not sure what the “freq” column means, but it always says -62500000:
ptp4l[276.189]: master offset -29715517212917536 s0 freq -62500000 path delay 35700952
ptp4l[277.189]: clockcheck: clock jumped backward or running slower than expected!
I am using Linux Kernel version 4.14.73
Any help would be appreciated.
Thanks,
Daniel
From 2d9ebd65b61805b844a15e156c2673b16bd3e140 Mon Sep 17 00:00:00 2001 From: Mario Molitor Date: Fri, 16 Nov 2018 09:14:59 +0100 Subject: [PATCH 1/1] stmmac : bugfix of read from HWID after reset
--- drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index 1a9a382..6cd010cf 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -23,7 +23,7 @@ Support available at: https://bugzilla.stlinux.com/ *******************************************************************************/ - +#include <linux/delay.h> #include <linux/clk.h> #include <linux/kernel.h> #include <linux/interrupt.h> @@ -4151,15 +4151,15 @@ int stmmac_dvr_probe(struct device *device, priv->plat->phy_addr = phyaddr; if (priv->plat->stmmac_rst) { - ret = reset_control_assert(priv->plat->stmmac_rst); + //ret = reset_control_assert(priv->plat->stmmac_rst); reset_control_deassert(priv->plat->stmmac_rst); /* Some reset controllers have only reset callback instead of * assert + deassert callbacks pair. */ - if (ret == -ENOTSUPP) - reset_control_reset(priv->plat->stmmac_rst); + //if (ret == -ENOTSUPP) + // reset_control_reset(priv->plat->stmmac_rst); } - + usleep_range(10, 20); /* Init MAC and get the capabilities */ ret = stmmac_hw_init(priv); if (ret) -- 2.7.4
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