/* * AMD 10Gb Ethernet driver * * This file is available to you under your choice of the following two * licenses: * * License 1: GPLv2 * * Copyright (c) 2014 Advanced Micro Devices, Inc. * * This file is free software; you may copy, redistribute and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 2 of the License, or (at * your option) any later version. * * This file is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . * * This file incorporates work covered by the following copyright and * permission notice: * The Synopsys DWC ETHER XGMAC Software Driver and documentation * (hereinafter "Software") is an unsupported proprietary work of Synopsys, * Inc. unless otherwise expressly agreed to in writing between Synopsys * and you. * * The Software IS NOT an item of Licensed Software or Licensed Product * under any End User Software License Agreement or Agreement for Licensed * Product with Synopsys or any supplement thereto. Permission is hereby * granted, free of charge, to any person obtaining a copy of this software * annotated with this license and the Software, to deal in the Software * without restriction, including without limitation the rights to use, * copy, modify, merge, publish, distribute, sublicense, and/or sell copies * of the Software, and to permit persons to whom the Software is furnished * to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included * in all copies or substantial portions of the Software. * * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" * BASIS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A * PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF * THE POSSIBILITY OF SUCH DAMAGE. * * * License 2: Modified BSD * * Copyright (c) 2014 Advanced Micro Devices, Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Advanced Micro Devices, Inc. nor the * names of its contributors may be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL BE LIABLE FOR ANY * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * This file incorporates work covered by the following copyright and * permission notice: * The Synopsys DWC ETHER XGMAC Software Driver and documentation * (hereinafter "Software") is an unsupported proprietary work of Synopsys, * Inc. unless otherwise expressly agreed to in writing between Synopsys * and you. * * The Software IS NOT an item of Licensed Software or Licensed Product * under any End User Software License Agreement or Agreement for Licensed * Product with Synopsys or any supplement thereto. Permission is hereby * granted, free of charge, to any person obtaining a copy of this software * annotated with this license and the Software, to deal in the Software * without restriction, including without limitation the rights to use, * copy, modify, merge, publish, distribute, sublicense, and/or sell copies * of the Software, and to permit persons to whom the Software is furnished * to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included * in all copies or substantial portions of the Software. * * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" * BASIS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A * PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF * THE POSSIBILITY OF SUCH DAMAGE. */ #include __FBSDID("$FreeBSD$"); #include "xgbe.h" static u64 xgbe_cc_read(const struct cyclecounter *cc) { struct xgbe_prv_data *pdata = container_of(cc, struct xgbe_prv_data, tstamp_cc); u64 nsec; nsec = pdata->hw_if.get_tstamp_time(pdata); return (nsec); } static int xgbe_adjfreq(struct ptp_clock_info *info, s32 delta) { struct xgbe_prv_data *pdata = container_of(info, struct xgbe_prv_data, ptp_clock_info); unsigned long flags; u64 adjust; u32 addend, diff; unsigned int neg_adjust = 0; if (delta < 0) { neg_adjust = 1; delta = -delta; } adjust = pdata->tstamp_addend; adjust *= delta; diff = div_u64(adjust, 1000000000UL); addend = (neg_adjust) ? pdata->tstamp_addend - diff : pdata->tstamp_addend + diff; spin_lock_irqsave(&pdata->tstamp_lock, flags); pdata->hw_if.update_tstamp_addend(pdata, addend); spin_unlock_irqrestore(&pdata->tstamp_lock, flags); return (0); } static int xgbe_adjtime(struct ptp_clock_info *info, s64 delta) { struct xgbe_prv_data *pdata = container_of(info, struct xgbe_prv_data, ptp_clock_info); unsigned long flags; spin_lock_irqsave(&pdata->tstamp_lock, flags); timecounter_adjtime(&pdata->tstamp_tc, delta); spin_unlock_irqrestore(&pdata->tstamp_lock, flags); return (0); } static int xgbe_gettime(struct ptp_clock_info *info, struct timespec64 *ts) { struct xgbe_prv_data *pdata = container_of(info, struct xgbe_prv_data, ptp_clock_info); unsigned long flags; u64 nsec; spin_lock_irqsave(&pdata->tstamp_lock, flags); nsec = timecounter_read(&pdata->tstamp_tc); spin_unlock_irqrestore(&pdata->tstamp_lock, flags); *ts = ns_to_timespec64(nsec); return (0); } static int xgbe_settime(struct ptp_clock_info *info, const struct timespec64 *ts) { struct xgbe_prv_data *pdata = container_of(info, struct xgbe_prv_data, ptp_clock_info); unsigned long flags; u64 nsec; nsec = timespec64_to_ns(ts); spin_lock_irqsave(&pdata->tstamp_lock, flags); timecounter_init(&pdata->tstamp_tc, &pdata->tstamp_cc, nsec); spin_unlock_irqrestore(&pdata->tstamp_lock, flags); return (0); } static int xgbe_enable(struct ptp_clock_info *info, void *request, int on) { return (-EOPNOTSUPP); } void xgbe_ptp_register(struct xgbe_prv_data *pdata) { struct ptp_clock_info *info = &pdata->ptp_clock_info; //struct ptp_clock *clock; struct cyclecounter *cc = &pdata->tstamp_cc; u64 dividend; snprintf(info->name, sizeof(info->name), "axgbe-ptp"); //info->owner = THIS_MODULE; info->max_adj = pdata->ptpclk_rate; info->adjfreq = xgbe_adjfreq; info->adjtime = xgbe_adjtime; info->gettime64 = xgbe_gettime; info->settime64 = xgbe_settime; info->enable = xgbe_enable; #if 0 clock = ptp_clock_register(info, pdata->dev); if (IS_ERR(clock)) { dev_err(pdata->dev, "ptp_clock_register failed\n"); return; } pdata->ptp_clock = clock; #endif /* Calculate the addend: * addend = 2^32 / (PTP ref clock / 50Mhz) * = (2^32 * 50Mhz) / PTP ref clock */ dividend = 50000000; dividend <<= 32; pdata->tstamp_addend = div_u64(dividend, pdata->ptpclk_rate); /* Setup the timecounter */ cc->read = xgbe_cc_read; cc->mask = CLOCKSOURCE_MASK(64); cc->mult = 1; cc->shift = 0; timecounter_init(&pdata->tstamp_tc, &pdata->tstamp_cc, ktime_to_ns(ktime_get_real())); /* Disable all timestamping to start */ XGMAC_IOWRITE(pdata, MAC_TSCR, 0); pdata->tstamp_config.tx_type = HWTSTAMP_TX_OFF; pdata->tstamp_config.rx_filter = HWTSTAMP_FILTER_NONE; } void xgbe_ptp_unregister(struct xgbe_prv_data *pdata) { #if 0 if (pdata->ptp_clock) ptp_clock_unregister(pdata->ptp_clock); #endif }