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 OCELOT_MAX_PTP_ID 63 17 #define OCELOT_PTP_FIFO_SIZE 128 18 19 #define PTP_PIN_CFG_RSZ 0x20 20 #define PTP_PIN_TOD_SEC_MSB_RSZ PTP_PIN_CFG_RSZ 21 #define PTP_PIN_TOD_SEC_LSB_RSZ PTP_PIN_CFG_RSZ 22 #define PTP_PIN_TOD_NSEC_RSZ PTP_PIN_CFG_RSZ 23 #define PTP_PIN_WF_HIGH_PERIOD_RSZ PTP_PIN_CFG_RSZ 24 #define PTP_PIN_WF_LOW_PERIOD_RSZ PTP_PIN_CFG_RSZ 25 26 #define PTP_PIN_CFG_DOM BIT(0) 27 #define PTP_PIN_CFG_SYNC BIT(2) 28 #define PTP_PIN_CFG_ACTION(x) ((x) << 3) 29 #define PTP_PIN_CFG_ACTION_MASK PTP_PIN_CFG_ACTION(0x7) 30 31 enum { 32 PTP_PIN_ACTION_IDLE = 0, 33 PTP_PIN_ACTION_LOAD, 34 PTP_PIN_ACTION_SAVE, 35 PTP_PIN_ACTION_CLOCK, 36 PTP_PIN_ACTION_DELTA, 37 PTP_PIN_ACTION_NOSYNC, 38 PTP_PIN_ACTION_SYNC, 39 }; 40 41 #define PTP_CFG_MISC_PTP_EN BIT(2) 42 43 #define PTP_CFG_CLK_ADJ_CFG_ENA BIT(0) 44 #define PTP_CFG_CLK_ADJ_CFG_DIR BIT(1) 45 46 #define PTP_CFG_CLK_ADJ_FREQ_NS BIT(30) 47 48 int ocelot_ptp_gettime64(struct ptp_clock_info *ptp, struct timespec64 *ts); 49 int ocelot_ptp_settime64(struct ptp_clock_info *ptp, 50 const struct timespec64 *ts); 51 int ocelot_ptp_adjtime(struct ptp_clock_info *ptp, s64 delta); 52 int ocelot_ptp_adjfine(struct ptp_clock_info *ptp, long scaled_ppm); 53 int ocelot_ptp_verify(struct ptp_clock_info *ptp, unsigned int pin, 54 enum ptp_pin_function func, unsigned int chan); 55 int ocelot_ptp_enable(struct ptp_clock_info *ptp, 56 struct ptp_clock_request *rq, int on); 57 int ocelot_init_timestamp(struct ocelot *ocelot, 58 const struct ptp_clock_info *info); 59 int ocelot_deinit_timestamp(struct ocelot *ocelot); 60 #endif 61