diff options
Diffstat (limited to 'drivers/net/ethernet')
| -rw-r--r-- | drivers/net/ethernet/intel/igb/e1000_regs.h | 2 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/igb/igb_ptp.c | 72 |
2 files changed, 54 insertions, 20 deletions
diff --git a/drivers/net/ethernet/intel/igb/e1000_regs.h b/drivers/net/ethernet/intel/igb/e1000_regs.h index 6f0490d0e981..4af2870e49f8 100644 --- a/drivers/net/ethernet/intel/igb/e1000_regs.h +++ b/drivers/net/ethernet/intel/igb/e1000_regs.h @@ -104,6 +104,8 @@ #define E1000_TRGTTIMH0 0x0B648 /* Target Time Register 0 High - RW */ #define E1000_TRGTTIML1 0x0B64C /* Target Time Register 1 Low - RW */ #define E1000_TRGTTIMH1 0x0B650 /* Target Time Register 1 High - RW */ +#define E1000_FREQOUT0 0x0B654 /* Frequency Out 0 Control Register - RW */ +#define E1000_FREQOUT1 0x0B658 /* Frequency Out 1 Control Register - RW */ #define E1000_AUXSTMPL0 0x0B65C /* Auxiliary Time Stamp 0 Register Low - RO */ #define E1000_AUXSTMPH0 0x0B660 /* Auxiliary Time Stamp 0 Register High - RO */ #define E1000_AUXSTMPL1 0x0B664 /* Auxiliary Time Stamp 1 Register Low - RO */ diff --git a/drivers/net/ethernet/intel/igb/igb_ptp.c b/drivers/net/ethernet/intel/igb/igb_ptp.c index c3a9392cbc19..5982f28d521a 100644 --- a/drivers/net/ethernet/intel/igb/igb_ptp.c +++ b/drivers/net/ethernet/intel/igb/igb_ptp.c @@ -405,7 +405,7 @@ static void igb_pin_extts(struct igb_adapter *igb, int chan, int pin) wr32(E1000_CTRL_EXT, ctrl_ext); } -static void igb_pin_perout(struct igb_adapter *igb, int chan, int pin) +static void igb_pin_perout(struct igb_adapter *igb, int chan, int pin, int freq) { static const u32 aux0_sel_sdp[IGB_N_SDP] = { AUX0_SEL_SDP0, AUX0_SEL_SDP1, AUX0_SEL_SDP2, AUX0_SEL_SDP3, @@ -424,6 +424,14 @@ static void igb_pin_perout(struct igb_adapter *igb, int chan, int pin) TS_SDP0_SEL_TT1, TS_SDP1_SEL_TT1, TS_SDP2_SEL_TT1, TS_SDP3_SEL_TT1, }; + static const u32 ts_sdp_sel_fc0[IGB_N_SDP] = { + TS_SDP0_SEL_FC0, TS_SDP1_SEL_FC0, + TS_SDP2_SEL_FC0, TS_SDP3_SEL_FC0, + }; + static const u32 ts_sdp_sel_fc1[IGB_N_SDP] = { + TS_SDP0_SEL_FC1, TS_SDP1_SEL_FC1, + TS_SDP2_SEL_FC1, TS_SDP3_SEL_FC1, + }; static const u32 ts_sdp_sel_clr[IGB_N_SDP] = { TS_SDP0_SEL_FC1, TS_SDP1_SEL_FC1, TS_SDP2_SEL_FC1, TS_SDP3_SEL_FC1, @@ -445,11 +453,17 @@ static void igb_pin_perout(struct igb_adapter *igb, int chan, int pin) tssdp &= ~AUX1_TS_SDP_EN; tssdp &= ~ts_sdp_sel_clr[pin]; - if (chan == 1) - tssdp |= ts_sdp_sel_tt1[pin]; - else - tssdp |= ts_sdp_sel_tt0[pin]; - + if (freq) { + if (chan == 1) + tssdp |= ts_sdp_sel_fc1[pin]; + else + tssdp |= ts_sdp_sel_fc0[pin]; + } else { + if (chan == 1) + tssdp |= ts_sdp_sel_tt1[pin]; + else + tssdp |= ts_sdp_sel_tt0[pin]; + } tssdp |= ts_sdp_en[pin]; wr32(E1000_TSSDP, tssdp); @@ -463,10 +477,10 @@ static int igb_ptp_feature_enable_i210(struct ptp_clock_info *ptp, struct igb_adapter *igb = container_of(ptp, struct igb_adapter, ptp_caps); struct e1000_hw *hw = &igb->hw; - u32 tsauxc, tsim, tsauxc_mask, tsim_mask, trgttiml, trgttimh; + u32 tsauxc, tsim, tsauxc_mask, tsim_mask, trgttiml, trgttimh, freqout; unsigned long flags; struct timespec ts; - int pin = -1; + int use_freq = 0, pin = -1; s64 ns; switch (rq->type) { @@ -511,40 +525,58 @@ static int igb_ptp_feature_enable_i210(struct ptp_clock_info *ptp, ts.tv_nsec = rq->perout.period.nsec; ns = timespec_to_ns(&ts); ns = ns >> 1; - if (on && ns < 500000LL) { - /* 2k interrupts per second is an awful lot. */ - return -EINVAL; + if (on && ns <= 70000000LL) { + if (ns < 8LL) + return -EINVAL; + use_freq = 1; } ts = ns_to_timespec(ns); if (rq->perout.index == 1) { - tsauxc_mask = TSAUXC_EN_TT1; - tsim_mask = TSINTR_TT1; + if (use_freq) { + tsauxc_mask = TSAUXC_EN_CLK1 | TSAUXC_ST1; + tsim_mask = 0; + } else { + tsauxc_mask = TSAUXC_EN_TT1; + tsim_mask = TSINTR_TT1; + } trgttiml = E1000_TRGTTIML1; trgttimh = E1000_TRGTTIMH1; + freqout = E1000_FREQOUT1; } else { - tsauxc_mask = TSAUXC_EN_TT0; - tsim_mask = TSINTR_TT0; + if (use_freq) { + tsauxc_mask = TSAUXC_EN_CLK0 | TSAUXC_ST0; + tsim_mask = 0; + } else { + tsauxc_mask = TSAUXC_EN_TT0; + tsim_mask = TSINTR_TT0; + } trgttiml = E1000_TRGTTIML0; trgttimh = E1000_TRGTTIMH0; + freqout = E1000_FREQOUT0; } spin_lock_irqsave(&igb->tmreg_lock, flags); tsauxc = rd32(E1000_TSAUXC); tsim = rd32(E1000_TSIM); + if (rq->perout.index == 1) { + tsauxc &= ~(TSAUXC_EN_TT1 | TSAUXC_EN_CLK1 | TSAUXC_ST1); + tsim &= ~TSINTR_TT1; + } else { + tsauxc &= ~(TSAUXC_EN_TT0 | TSAUXC_EN_CLK0 | TSAUXC_ST0); + tsim &= ~TSINTR_TT0; + } if (on) { int i = rq->perout.index; - - igb_pin_perout(igb, i, pin); + igb_pin_perout(igb, i, pin, use_freq); igb->perout[i].start.tv_sec = rq->perout.start.sec; igb->perout[i].start.tv_nsec = rq->perout.start.nsec; igb->perout[i].period.tv_sec = ts.tv_sec; igb->perout[i].period.tv_nsec = ts.tv_nsec; wr32(trgttimh, rq->perout.start.sec); wr32(trgttiml, rq->perout.start.nsec); + if (use_freq) + wr32(freqout, ns); tsauxc |= tsauxc_mask; tsim |= tsim_mask; - } else { - tsauxc &= ~tsauxc_mask; - tsim &= ~tsim_mask; } wr32(E1000_TSAUXC, tsauxc); wr32(E1000_TSIM, tsim); |