Lines Matching refs:fep
95 * @fep: the fec_enet_private structure handle
100 static int fec_ptp_enable_pps(struct fec_enet_private *fep, uint enable)
107 if (fep->pps_enable == enable)
110 fep->pps_channel = DEFAULT_PPS_CHANNEL;
111 fep->reload_period = PPS_OUPUT_RELOAD_PERIOD;
113 spin_lock_irqsave(&fep->tmreg_lock, flags);
118 writel(FEC_T_TF_MASK, fep->hwp + FEC_TCSR(fep->pps_channel));
124 val = readl(fep->hwp + FEC_TCSR(fep->pps_channel));
127 writel(val, fep->hwp + FEC_TCSR(fep->pps_channel));
128 val = readl(fep->hwp + FEC_TCSR(fep->pps_channel));
132 timecounter_read(&fep->tc);
140 tempval = fep->cc.read(&fep->cc);
142 ns = timecounter_cyc2time(&fep->tc, tempval);
167 * is bigger than fep->cc.mask would be a error.
169 val &= fep->cc.mask;
170 writel(val, fep->hwp + FEC_TCCR(fep->pps_channel));
173 fep->next_counter = (val + fep->reload_period) & fep->cc.mask;
176 val = readl(fep->hwp + FEC_ATIME_CTRL);
178 writel(val, fep->hwp + FEC_ATIME_CTRL);
181 val = readl(fep->hwp + FEC_TCSR(fep->pps_channel));
186 writel(val, fep->hwp + FEC_TCSR(fep->pps_channel));
191 writel(fep->next_counter, fep->hwp + FEC_TCCR(fep->pps_channel));
192 fep->next_counter = (fep->next_counter + fep->reload_period) & fep->cc.mask;
194 writel(0, fep->hwp + FEC_TCSR(fep->pps_channel));
197 fep->pps_enable = enable;
198 spin_unlock_irqrestore(&fep->tmreg_lock, flags);
203 static int fec_ptp_pps_perout(struct fec_enet_private *fep)
209 spin_lock_irqsave(&fep->tmreg_lock, flags);
212 timecounter_read(&fep->tc);
215 temp_val = readl(fep->hwp + FEC_ATIME_CTRL);
217 writel(temp_val, fep->hwp + FEC_ATIME_CTRL);
218 if (fep->quirks & FEC_QUIRK_BUG_CAPTURE)
221 ptp_hc = readl(fep->hwp + FEC_ATIME);
224 curr_time = timecounter_cyc2time(&fep->tc, ptp_hc);
230 if (fep->perout_stime < curr_time + 100 * NSEC_PER_MSEC) {
231 dev_err(&fep->pdev->dev, "Current time is too close to the start time!\n");
232 spin_unlock_irqrestore(&fep->tmreg_lock, flags);
236 compare_val = fep->perout_stime - curr_time + ptp_hc;
237 compare_val &= fep->cc.mask;
239 writel(compare_val, fep->hwp + FEC_TCCR(fep->pps_channel));
240 fep->next_counter = (compare_val + fep->reload_period) & fep->cc.mask;
243 temp_val = readl(fep->hwp + FEC_ATIME_CTRL);
245 writel(temp_val, fep->hwp + FEC_ATIME_CTRL);
248 temp_val = readl(fep->hwp + FEC_TCSR(fep->pps_channel));
253 writel(temp_val, fep->hwp + FEC_TCSR(fep->pps_channel));
258 writel(fep->next_counter, fep->hwp + FEC_TCCR(fep->pps_channel));
259 fep->next_counter = (fep->next_counter + fep->reload_period) & fep->cc.mask;
260 spin_unlock_irqrestore(&fep->tmreg_lock, flags);
267 struct fec_enet_private *fep = container_of(timer,
270 fec_ptp_pps_perout(fep);
285 struct fec_enet_private *fep =
289 tempval = readl(fep->hwp + FEC_ATIME_CTRL);
291 writel(tempval, fep->hwp + FEC_ATIME_CTRL);
293 if (fep->quirks & FEC_QUIRK_BUG_CAPTURE)
296 return readl(fep->hwp + FEC_ATIME);
309 struct fec_enet_private *fep = netdev_priv(ndev);
313 inc = 1000000000 / fep->cycle_speed;
316 spin_lock_irqsave(&fep->tmreg_lock, flags);
319 writel(inc << FEC_T_INC_OFFSET, fep->hwp + FEC_ATIME_INC);
322 writel(FEC_COUNTER_PERIOD, fep->hwp + FEC_ATIME_EVT_PERIOD);
325 fep->hwp + FEC_ATIME_CTRL);
327 memset(&fep->cc, 0, sizeof(fep->cc));
328 fep->cc.read = fec_ptp_read;
329 fep->cc.mask = CLOCKSOURCE_MASK(31);
330 fep->cc.shift = 31;
331 fep->cc.mult = FEC_CC_MULT;
334 timecounter_init(&fep->tc, &fep->cc, 0);
336 spin_unlock_irqrestore(&fep->tmreg_lock, flags);
362 struct fec_enet_private *fep =
374 * Try to find the corr_inc between 1 to fep->ptp_inc to
378 rhs = (u64)ppb * (u64)fep->ptp_inc;
379 for (i = 1; i <= fep->ptp_inc; i++) {
390 if (i > fep->ptp_inc) {
391 corr_inc = fep->ptp_inc;
396 corr_ns = fep->ptp_inc - corr_inc;
398 corr_ns = fep->ptp_inc + corr_inc;
400 spin_lock_irqsave(&fep->tmreg_lock, flags);
402 tmp = readl(fep->hwp + FEC_ATIME_INC) & FEC_T_INC_MASK;
404 writel(tmp, fep->hwp + FEC_ATIME_INC);
406 writel(corr_period, fep->hwp + FEC_ATIME_CORR);
408 timecounter_read(&fep->tc);
410 spin_unlock_irqrestore(&fep->tmreg_lock, flags);
424 struct fec_enet_private *fep =
428 spin_lock_irqsave(&fep->tmreg_lock, flags);
429 timecounter_adjtime(&fep->tc, delta);
430 spin_unlock_irqrestore(&fep->tmreg_lock, flags);
445 struct fec_enet_private *fep =
450 mutex_lock(&fep->ptp_clk_mutex);
452 if (!fep->ptp_clk_on) {
453 mutex_unlock(&fep->ptp_clk_mutex);
456 spin_lock_irqsave(&fep->tmreg_lock, flags);
457 ns = timecounter_read(&fep->tc);
458 spin_unlock_irqrestore(&fep->tmreg_lock, flags);
459 mutex_unlock(&fep->ptp_clk_mutex);
477 struct fec_enet_private *fep =
484 mutex_lock(&fep->ptp_clk_mutex);
486 if (!fep->ptp_clk_on) {
487 mutex_unlock(&fep->ptp_clk_mutex);
495 counter = ns & fep->cc.mask;
497 spin_lock_irqsave(&fep->tmreg_lock, flags);
498 writel(counter, fep->hwp + FEC_ATIME);
499 timecounter_init(&fep->tc, &fep->cc, ns);
500 spin_unlock_irqrestore(&fep->tmreg_lock, flags);
501 mutex_unlock(&fep->ptp_clk_mutex);
505 static int fec_ptp_pps_disable(struct fec_enet_private *fep, uint channel)
509 spin_lock_irqsave(&fep->tmreg_lock, flags);
510 writel(0, fep->hwp + FEC_TCSR(channel));
511 spin_unlock_irqrestore(&fep->tmreg_lock, flags);
526 struct fec_enet_private *fep =
535 ret = fec_ptp_enable_pps(fep, on);
546 fep->pps_channel = DEFAULT_PPS_CHANNEL;
555 dev_err(&fep->pdev->dev, "The period must equal to or less than 4s!\n");
559 fep->reload_period = div_u64(period_ns, 2);
560 if (on && fep->reload_period) {
564 fep->perout_stime = timespec64_to_ns(&start_time);
566 mutex_lock(&fep->ptp_clk_mutex);
567 if (!fep->ptp_clk_on) {
568 dev_err(&fep->pdev->dev, "Error: PTP clock is closed!\n");
569 mutex_unlock(&fep->ptp_clk_mutex);
572 spin_lock_irqsave(&fep->tmreg_lock, flags);
574 curr_time = timecounter_read(&fep->tc);
575 spin_unlock_irqrestore(&fep->tmreg_lock, flags);
576 mutex_unlock(&fep->ptp_clk_mutex);
579 delta = fep->perout_stime - curr_time;
581 if (fep->perout_stime <= curr_time) {
582 dev_err(&fep->pdev->dev, "Start time must larger than current time!\n");
594 hrtimer_start(&fep->perout_timer, timeout, HRTIMER_MODE_REL);
596 return fec_ptp_pps_perout(fep);
599 fec_ptp_pps_disable(fep, fep->pps_channel);
611 struct fec_enet_private *fep = netdev_priv(ndev);
615 fep->hwts_tx_en = 0;
618 fep->hwts_tx_en = 1;
626 fep->hwts_rx_en = 0;
630 fep->hwts_rx_en = 1;
640 struct fec_enet_private *fep = netdev_priv(ndev);
643 config->tx_type = fep->hwts_tx_en ? HWTSTAMP_TX_ON : HWTSTAMP_TX_OFF;
644 config->rx_filter = (fep->hwts_rx_en ?
655 struct fec_enet_private *fep = container_of(dwork, struct fec_enet_private, time_keep);
658 mutex_lock(&fep->ptp_clk_mutex);
659 if (fep->ptp_clk_on) {
660 spin_lock_irqsave(&fep->tmreg_lock, flags);
661 timecounter_read(&fep->tc);
662 spin_unlock_irqrestore(&fep->tmreg_lock, flags);
664 mutex_unlock(&fep->ptp_clk_mutex);
666 schedule_delayed_work(&fep->time_keep, HZ);
673 struct fec_enet_private *fep = netdev_priv(ndev);
675 u8 channel = fep->pps_channel;
678 val = readl(fep->hwp + FEC_TCSR(channel));
683 writel(fep->next_counter, fep->hwp + FEC_TCCR(channel));
685 writel(val, fep->hwp + FEC_TCSR(channel));
686 } while (readl(fep->hwp + FEC_TCSR(channel)) & FEC_T_TF_MASK);
689 fep->next_counter = (fep->next_counter + fep->reload_period) &
690 fep->cc.mask;
693 ptp_clock_event(fep->ptp_clock, &event);
713 struct fec_enet_private *fep = netdev_priv(ndev);
717 fep->ptp_caps.owner = THIS_MODULE;
718 strscpy(fep->ptp_caps.name, "fec ptp", sizeof(fep->ptp_caps.name));
720 fep->ptp_caps.max_adj = 250000000;
721 fep->ptp_caps.n_alarm = 0;
722 fep->ptp_caps.n_ext_ts = 0;
723 fep->ptp_caps.n_per_out = 1;
724 fep->ptp_caps.n_pins = 0;
725 fep->ptp_caps.pps = 1;
726 fep->ptp_caps.adjfine = fec_ptp_adjfine;
727 fep->ptp_caps.adjtime = fec_ptp_adjtime;
728 fep->ptp_caps.gettime64 = fec_ptp_gettime;
729 fep->ptp_caps.settime64 = fec_ptp_settime;
730 fep->ptp_caps.enable = fec_ptp_enable;
732 fep->cycle_speed = clk_get_rate(fep->clk_ptp);
733 if (!fep->cycle_speed) {
734 fep->cycle_speed = NSEC_PER_SEC;
735 dev_err(&fep->pdev->dev, "clk_ptp clock rate is zero\n");
737 fep->ptp_inc = NSEC_PER_SEC / fep->cycle_speed;
739 spin_lock_init(&fep->tmreg_lock);
743 INIT_DELAYED_WORK(&fep->time_keep, fec_time_keep);
745 hrtimer_init(&fep->perout_timer, CLOCK_REALTIME, HRTIMER_MODE_REL);
746 fep->perout_timer.function = fec_ptp_pps_perout_handler;
762 fep->ptp_clock = ptp_clock_register(&fep->ptp_caps, &pdev->dev);
763 if (IS_ERR(fep->ptp_clock)) {
764 fep->ptp_clock = NULL;
768 schedule_delayed_work(&fep->time_keep, HZ);
774 struct fec_enet_private *fep = netdev_priv(ndev);
776 cancel_delayed_work_sync(&fep->time_keep);
777 hrtimer_cancel(&fep->perout_timer);
778 if (fep->ptp_clock)
779 ptp_clock_unregister(fep->ptp_clock);