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| author | Luwei Zhou <b45643@freescale.com> | 2014-10-10 13:15:30 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-10-14 14:45:08 -0400 |
| commit | 278d24047891a1bf4a98128eaa8ecafd019e58c2 (patch) | |
| tree | 57cb9578e7e20ab6700a715e67834d08b399a11a /drivers/net/ethernet/smsc | |
| parent | 89bddcda7e4f4ff2586e736427405115c362bed4 (diff) | |
| download | linux-278d24047891a1bf4a98128eaa8ecafd019e58c2.tar.gz linux-278d24047891a1bf4a98128eaa8ecafd019e58c2.tar.bz2 linux-278d24047891a1bf4a98128eaa8ecafd019e58c2.zip | |
net: fec: ptp: Enable PPS output based on ptp clock
FEC ptp timer has 4 channel compare/trigger function. It can be used to
enable pps output.
The pulse would be ouput high exactly on N second. The pulse ouput high
on compare event mode is used to produce pulse per second. The pulse
width would be one cycle based on ptp timer clock source.Since 31-bit
ptp hardware timer is used, the timer will wrap more than 2 seconds. We
need to reload the compare compare event about every 1 second.
Signed-off-by: Luwei Zhou <b45643@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/smsc')
0 files changed, 0 insertions, 0 deletions