Book a Demo!
CoCalc Logo Icon
StoreFeaturesDocsShareSupportNewsAboutPoliciesSign UpSign In
torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/include/soc/mscc/ocelot_ptp.h
26285 views
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


62