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path: root/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c (follow)
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2018-08-09net: stmmac: Add PTP support for XGMAC2Jose Abreu1-2/+4
XGMAC2 uses the same engine of timestamping as GMAC4. Let's use the same callbacks. Signed-off-by: Jose Abreu <joabreu@synopsys.com> Cc: David S. Miller <davem@davemloft.net> Cc: Joao Pinto <jpinto@synopsys.com> Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com> Cc: Alexandre Torgue <alexandre.torgue@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-04net: stmmac: Add Flexible PPS supportJose Abreu1-3/+39
This adds support for Flexible PPS output (which is equivalent to per_out output of PTP subsystem). Tested using an oscilloscope and the following commands: 1) Start PTP4L: # ptp4l -A -4 -H -m -i eth0 & 2) Set Flexible PPS frequency: # echo <idx> <ts> <tns> <ps> <pns> > /sys/class/ptp/ptpX/period Where, ts/tns is start time and ps/pns is period time, and ptpX is ptp of eth0. Signed-off-by: Jose Abreu <joabreu@synopsys.com> Cc: David S. Miller <davem@davemloft.net> Cc: Joao Pinto <jpinto@synopsys.com> Cc: Vitor Soares <soares@synopsys.com> Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com> Cc: Alexandre Torgue <alexandre.torgue@st.com> Cc: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-16net: stmmac: Switch stmmac_hwtimestamp to generic HW Interface HelpersJose Abreu1-13/+5
Switch stmmac_hwtimestamp to generic Hardware Interface Helpers instead of using hard-coded callbacks. This makes the code more readable and more flexible. No functional change. Signed-off-by: Jose Abreu <joabreu@synopsys.com> Cc: David S. Miller <davem@davemloft.net> Cc: Joao Pinto <jpinto@synopsys.com> Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com> Cc: Alexandre Torgue <alexandre.torgue@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-22net: ethernet: make ptp_clock_info constBhumika Goyal1-1/+1
Make these const as they are only used in a copy operation. Done using Coccinelle. @match disable optional_qualifier@ identifier s; @@ static struct ptp_clock_info s = {...}; @ref@ position p; identifier match.s; @@ s@p @good1@ position ref.p; identifier match.s,f,c; expression e; @@ ( e = s@p | e = s@p.f | c(...,s@p.f,...) | c(...,s@p,...) ) @bad depends on !good1@ position ref.p; identifier match.s; @@ s@p @depends on forall !bad disable optional_qualifier@ identifier match.s; @@ static + const struct ptp_clock_info s; Signed-off-by: Bhumika Goyal <bhumirks@gmail.com> Acked-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-08net: stmmac: remove freesoftware addressLABBE Corentin1-4/+0
This patch fix the checkpatch warning about free software address. Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com> Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-15stmmac: fix PTP support for GMAC4Giuseppe CAVALLARO1-4/+5
Due to bad management of the descriptors, when use ptp4l, kernel panics as shown below: ----------------------------------------------------------- Unable to handle kernel NULL pointer dereference at virtual address 000001ac ... Internal error: Oops: 17 [#1] SMP ARM ... Hardware name: STi SoC with Flattened Device Tree task: c0c05e80 task.stack: c0c00000 PC is at dwmac4_wrback_get_tx_timestamp_status+0x0/0xc LR is at stmmac_tx_clean+0x2f8/0x4d4 ----------------------------------------------------------- In case of GMAC4 the extended descriptor pointers were used for getting the timestamp. These are NULL for this HW, and the normal ones must be used. The PTP also had problems on this chip due to the bad register management and issues on the algo adopted to setup the PTP and getting the timestamp values from the descriptors. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Acked-by: Rayagond Kokatanur <rayagond@vayavyalabs.com> Acked-by: Alexandre TORGUE <alexandre.torgue@st.com> Acked-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-19stmmac: fix and review the ptp registration.Giuseppe CAVALLARO1-11/+4
The commit commit 7086605a6ab5 ("stmmac: fix error check when init ptp") breaks the procedure added by the commit efee95f42b5d ("ptp_clock: future-proofing drivers against PTP subsystem becoming optional") So this patch tries to re-import the logic added by the latest commit above: it makes sense to have the stmmac_ptp_register as void function and, inside the main, the stmmac_init_ptp can fails in case of the capability cannot be supported by the HW. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Cc: Alexandre TORGUE <alexandre.torgue@st.com> Cc: Rayagond Kokatanur <rayagond@vayavyalabs.com> Cc: Dan Carpenter <dan.carpenter@oracle.com> Cc: Nicolas Pitre <nico@linaro.org> Acked-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-15stmmac: fix an error code in stmmac_ptp_register()Dan Carpenter1-1/+3
PTR_ERR(NULL) is success. We have to preserve the error code earlier. Fixes: 7086605a6ab5 ("stmmac: fix error check when init ptp") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13stmmac: fix error check when init ptpGiuseppe CAVALLARO1-4/+6
This patch fixes a problem when propagated the failure of ptp_clock_register to open function. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Cc: Alexandre TORGUE <alexandre.torgue@st.com> Cc: Rayagond Kokatanur <rayagond@vayavyalabs.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-22ptp_clock: future-proofing drivers against PTP subsystem becoming optionalNicolas Pitre1-1/+1
Drivers must be ready to accept NULL from ptp_clock_register() if the PTP clock subsystem is configured out. This patch documents that and ensures that all drivers cope well with a NULL return. Signed-off-by: Nicolas Pitre <nico@linaro.org> Reviewed-by: Eugenia Emantayev <eugenia@mellanox.com> Acked-by: Richard Cochran <richardcochran@gmail.com> Acked-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-31ptp: stmmac: use helpers for converting ns to timespec.Richard Cochran1-3/+1
This patch changes the driver to use ns_to_timespec64() instead of open coding the same logic. Compile tested only. Signed-off-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-31ptp: stmmac: convert to the 64 bit get/set time methods.Richard Cochran1-4/+4
This device stores the number of seconds in a 32 bit register. So more work is needed on this driver before the year 2038 comes around. Compile tested only. Signed-off-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-25stmmac: set ptp_clock to NULL while unregisterGiuseppe CAVALLARO1-0/+1
This is to properly put to NULL the ptp_clock while un-register the PTP support. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-21ptp: drivers: set the number of programmable pins.Richard Cochran1-0/+1
This patch updates the many PTP Hardware Clock drivers with the newly introduced field that advertises the number of programmable pins. Some of these devices do have programmable pins, but the implementation will have to wait for follow on patches. Signed-off-by: Richard Cochran <richardcochran@gmail.com> Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-29stmmac: Fix incorrect spinlock release and PTP cap detection.Vince Bridgers1-2/+2
This patch corrects a problem in stmmac_ptp.c, functions stmmac_adjust_time and stmmac_adjust_freq where the incorrect spinlocks were released. This patch also addresses a problem in stmmac_main, function stmmac_init_ptp where the capability detection for advanced timestamping was masked by message masking. This patch was touch tested using linuxptp, and runs without the previously observed instabilities. More extensive testing is ongoing. Vince Signed-off-by: Vince Bridgers <vbridgers2013@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-08stmmac: improve/review and fix kernel-docGiuseppe CAVALLARO1-6/+2
this patch reviews/improves and adds some fixes in the code doc. Also kernel-doc passes w/o any warnings. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-26stmmac: add the support for PTP hw clock driverRayagond Kokatanur1-0/+215
This patch implements PHC (ptp hardware clock) driver for stmmac driver to support 1588 PTP. V2: added support for FINE method, reduced loop delay and review spinlock. Signed-off-by: Rayagond Kokatanur <rayagond@vayavyalabs.com> Hacked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Cc: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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