diff options
Diffstat (limited to 'drivers/net/ethernet/intel/igc/igc_ptp.c')
| -rw-r--r-- | drivers/net/ethernet/intel/igc/igc_ptp.c | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/drivers/net/ethernet/intel/igc/igc_ptp.c b/drivers/net/ethernet/intel/igc/igc_ptp.c index dfa3b247fcd8..8d6fbf609761 100644 --- a/drivers/net/ethernet/intel/igc/igc_ptp.c +++ b/drivers/net/ethernet/intel/igc/igc_ptp.c @@ -123,6 +123,29 @@ static int igc_ptp_settime_i225(struct ptp_clock_info *ptp, static int igc_ptp_feature_enable_i225(struct ptp_clock_info *ptp, struct ptp_clock_request *rq, int on) { + struct igc_adapter *igc = + container_of(ptp, struct igc_adapter, ptp_caps); + struct igc_hw *hw = &igc->hw; + unsigned long flags; + u32 tsim; + + switch (rq->type) { + case PTP_CLK_REQ_PPS: + spin_lock_irqsave(&igc->tmreg_lock, flags); + tsim = rd32(IGC_TSIM); + if (on) + tsim |= IGC_TSICR_SYS_WRAP; + else + tsim &= ~IGC_TSICR_SYS_WRAP; + igc->pps_sys_wrap_on = on; + wr32(IGC_TSIM, tsim); + spin_unlock_irqrestore(&igc->tmreg_lock, flags); + return 0; + + default: + break; + } + return -EOPNOTSUPP; } @@ -497,6 +520,7 @@ void igc_ptp_init(struct igc_adapter *adapter) adapter->ptp_caps.gettimex64 = igc_ptp_gettimex64_i225; adapter->ptp_caps.settime64 = igc_ptp_settime_i225; adapter->ptp_caps.enable = igc_ptp_feature_enable_i225; + adapter->ptp_caps.pps = 1; break; default: adapter->ptp_clock = NULL; @@ -598,7 +622,9 @@ void igc_ptp_reset(struct igc_adapter *adapter) case igc_i225: wr32(IGC_TSAUXC, 0x0); wr32(IGC_TSSDP, 0x0); - wr32(IGC_TSIM, IGC_TSICR_INTERRUPTS); + wr32(IGC_TSIM, + IGC_TSICR_INTERRUPTS | + (adapter->pps_sys_wrap_on ? IGC_TSICR_SYS_WRAP : 0)); wr32(IGC_IMS, IGC_IMS_TS); break; default: |