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| author | Chris Metcalf <cmetcalf@tilera.com> | 2013-08-01 11:36:42 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-08-01 14:35:51 -0700 |
| commit | 9ab5ec59c8a9cc0e4b94252b48200b6023c716aa (patch) | |
| tree | fa9084e9bbb9eaf85689723d1b6e2c957f095a57 /arch/tile/gxio | |
| parent | 84e181ba3607a4e1175d929c346c72f9bfa1ab02 (diff) | |
| download | linux-9ab5ec59c8a9cc0e4b94252b48200b6023c716aa.tar.gz linux-9ab5ec59c8a9cc0e4b94252b48200b6023c716aa.tar.xz | |
tile: support PTP using the tilegx mPIPE (IEEE 1588)
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/tile/gxio')
| -rw-r--r-- | arch/tile/gxio/iorpc_mpipe.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/tile/gxio/iorpc_mpipe.c b/arch/tile/gxio/iorpc_mpipe.c index c2fb15167aee..4f8f3d619c4a 100644 --- a/arch/tile/gxio/iorpc_mpipe.c +++ b/arch/tile/gxio/iorpc_mpipe.c @@ -475,6 +475,25 @@ int gxio_mpipe_adjust_timestamp_aux(gxio_mpipe_context_t * context, EXPORT_SYMBOL(gxio_mpipe_adjust_timestamp_aux); +struct adjust_timestamp_freq_param { + int32_t ppb; +}; + +int gxio_mpipe_adjust_timestamp_freq(gxio_mpipe_context_t * context, + int32_t ppb) +{ + struct adjust_timestamp_freq_param temp; + struct adjust_timestamp_freq_param *params = &temp; + + params->ppb = ppb; + + return hv_dev_pwrite(context->fd, 0, (HV_VirtAddr) params, + sizeof(*params), + GXIO_MPIPE_OP_ADJUST_TIMESTAMP_FREQ); +} + +EXPORT_SYMBOL(gxio_mpipe_adjust_timestamp_freq); + struct config_edma_ring_blks_param { unsigned int ering; unsigned int max_blks; |