LXR linux/include/soc/mscc/ocelot

   1/* SPDX-License-Identifier: (GPL-2.0 OR MIT) */
   2/*
   3 * Microsemi Ocelot Switch driver
   4 *
   5 * License: Dual MIT/GPL
   6 * Copyright (c) 2017 Microsemi Corporation
   7 * Copyright 2020 NXP
   8 */
   9
  10#ifndef _MSCC_OCELOT_PTP_H_
  11#define _MSCC_OCELOT_PTP_H_
  12
  13#include <linux/ptp_clock_kernel.h>
  14#include <soc/mscc/ocelot.h>
  15
  16#define PTP_PIN_CFG_RSZ                 0x20
  17#define PTP_PIN_TOD_SEC_MSB_RSZ         PTP_PIN_CFG_RSZ
  18#define PTP_PIN_TOD_SEC_LSB_RSZ         PTP_PIN_CFG_RSZ
  19#define PTP_PIN_TOD_NSEC_RSZ            PTP_PIN_CFG_RSZ
  20#define PTP_PIN_WF_HIGH_PERIOD_RSZ      PTP_PIN_CFG_RSZ
  21#define PTP_PIN_WF_LOW_PERIOD_RSZ       PTP_PIN_CFG_RSZ
  22
  23#define PTP_PIN_CFG_DOM                 BIT(0)
  24#define PTP_PIN_CFG_SYNC                BIT(2)
  25#define PTP_PIN_CFG_ACTION(x)           ((x) << 3)
  26#define PTP_PIN_CFG_ACTION_MASK         PTP_PIN_CFG_ACTION(0x7)
  27
  28enum {
  29        PTP_PIN_ACTION_IDLE = 0,
  30        PTP_PIN_ACTION_LOAD,
  31        PTP_PIN_ACTION_SAVE,
  32        PTP_PIN_ACTION_CLOCK,
  33        PTP_PIN_ACTION_DELTA,
  34        PTP_PIN_ACTION_NOSYNC,
  35        PTP_PIN_ACTION_SYNC,
  36};
  37
  38#define PTP_CFG_MISC_PTP_EN             BIT(2)
  39
  40#define PTP_CFG_CLK_ADJ_CFG_ENA         BIT(0)
  41#define PTP_CFG_CLK_ADJ_CFG_DIR         BIT(1)
  42
  43#define PTP_CFG_CLK_ADJ_FREQ_NS         BIT(30)
  44
  45int ocelot_ptp_gettime64(struct ptp_clock_info *ptp, struct timespec64 *ts);
  46int ocelot_ptp_settime64(struct ptp_clock_info *ptp,
  47                         const struct timespec64 *ts);
  48int ocelot_ptp_adjtime(struct ptp_clock_info *ptp, s64 delta);
  49int ocelot_ptp_adjfine(struct ptp_clock_info *ptp, long scaled_ppm);
  50int ocelot_ptp_verify(struct ptp_clock_info *ptp, unsigned int pin,
  51                      enum ptp_pin_function func, unsigned int chan);
  52int ocelot_ptp_enable(struct ptp_clock_info *ptp,
  53                      struct ptp_clock_request *rq, int on);
  54int ocelot_init_timestamp(struct ocelot *ocelot,
  55                          const struct ptp_clock_info *info);
  56int ocelot_deinit_timestamp(struct ocelot *ocelot);
  57#endif
  58