cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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ocelot_ptp.h (1814B)


      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
     31enum {
     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
     48int ocelot_ptp_gettime64(struct ptp_clock_info *ptp, struct timespec64 *ts);
     49int ocelot_ptp_settime64(struct ptp_clock_info *ptp,
     50			 const struct timespec64 *ts);
     51int ocelot_ptp_adjtime(struct ptp_clock_info *ptp, s64 delta);
     52int ocelot_ptp_adjfine(struct ptp_clock_info *ptp, long scaled_ppm);
     53int ocelot_ptp_verify(struct ptp_clock_info *ptp, unsigned int pin,
     54		      enum ptp_pin_function func, unsigned int chan);
     55int ocelot_ptp_enable(struct ptp_clock_info *ptp,
     56		      struct ptp_clock_request *rq, int on);
     57int ocelot_init_timestamp(struct ocelot *ocelot,
     58			  const struct ptp_clock_info *info);
     59int ocelot_deinit_timestamp(struct ocelot *ocelot);
     60#endif