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/*
* Marvell 88E6xxx Switch PTP support
*
* Copyright (c) 2008 Marvell Semiconductor
*
* Copyright (c) 2017 National Instruments
* Erik Hons <erik.hons@ni.com>
* Brandon Streiff <brandon.streiff@ni.com>
* Dane Wagner <dane.wagner@ni.com>
*
* This program is free software; you can redistribute it 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.
*/
#ifndef _MV88E6XXX_PTP_H
#define _MV88E6XXX_PTP_H
#include "chip.h"
/* Offset 0x00: TAI Global Config */
#define MV88E6XXX_TAI_CFG 0x00
#define MV88E6XXX_TAI_CFG_CAP_OVERWRITE 0x8000
#define MV88E6XXX_TAI_CFG_CAP_CTR_START 0x4000
#define MV88E6XXX_TAI_CFG_EVREQ_FALLING 0x2000
#define MV88E6XXX_TAI_CFG_TRIG_ACTIVE_LO 0x1000
#define MV88E6XXX_TAI_CFG_IRL_ENABLE 0x0400
#define MV88E6XXX_TAI_CFG_TRIG_IRQ_EN 0x0200
#define MV88E6XXX_TAI_CFG_EVREQ_IRQ_EN 0x0100
#define MV88E6XXX_TAI_CFG_TRIG_LOCK 0x0080
#define MV88E6XXX_TAI_CFG_BLOCK_UPDATE 0x0008
#define MV88E6XXX_TAI_CFG_MULTI_PTP 0x0004
#define MV88E6XXX_TAI_CFG_TRIG_MODE_ONESHOT 0x0002
#define MV88E6XXX_TAI_CFG_TRIG_ENABLE 0x0001
/* Offset 0x01: Timestamp Clock Period (ps) */
#define MV88E6XXX_TAI_CLOCK_PERIOD 0x01
/* Offset 0x02/0x03: Trigger Generation Amount */
#define MV88E6XXX_TAI_TRIG_GEN_AMOUNT_LO 0x02
#define MV88E6XXX_TAI_TRIG_GEN_AMOUNT_HI 0x03
/* Offset 0x04: Clock Compensation */
#define MV88E6XXX_TAI_TRIG_CLOCK_COMP 0x04
/* Offset 0x05: Trigger Configuration */
#define MV88E6XXX_TAI_TRIG_CFG 0x05
/* Offset 0x06: Ingress Rate Limiter Clock Generation Amount */
#define MV88E6XXX_TAI_IRL_AMOUNT 0x06
/* Offset 0x07: Ingress Rate Limiter Compensation */
#define MV88E6XXX_TAI_IRL_COMP 0x07
/* Offset 0x08: Ingress Rate Limiter Compensation */
#define MV88E6XXX_TAI_IRL_COMP_PS 0x08
/* Offset 0x09: Event Status */
#define MV88E6XXX_TAI_EVENT_STATUS 0x09
#define MV88E6XXX_TAI_EVENT_STATUS_CAP_TRIG 0x4000
#define MV88E6XXX_TAI_EVENT_STATUS_ERROR 0x0200
#define MV88E6XXX_TAI_EVENT_STATUS_VALID 0x0100
#define MV88E6XXX_TAI_EVENT_STATUS_CTR_MASK 0x00ff
/* Offset 0x0A/0x0B: Event Time */
#define MV88E6XXX_TAI_EVENT_TIME_LO 0x0a
#define MV88E6XXX_TAI_EVENT_TYPE_HI 0x0b
/* Offset 0x0E/0x0F: PTP Global Time */
#define MV88E6XXX_TAI_TIME_LO 0x0e
#define MV88E6XXX_TAI_TIME_HI 0x0f
/* Offset 0x10/0x11: Trig Generation Time */
#define MV88E6XXX_TAI_TRIG_TIME_LO 0x10
#define MV88E6XXX_TAI_TRIG_TIME_HI 0x11
/* Offset 0x12: Lock Status */
#define MV88E6XXX_TAI_LOCK_STATUS 0x12
#ifdef CONFIG_NET_DSA_MV88E6XXX_PTP
long mv88e6xxx_hwtstamp_work(struct ptp_clock_info *ptp);
int mv88e6xxx_ptp_setup(struct mv88e6xxx_chip *chip);
void mv88e6xxx_ptp_free(struct mv88e6xxx_chip *chip);
#define ptp_to_chip(ptp) container_of(ptp, struct mv88e6xxx_chip, \
ptp_clock_info)
#else /* !CONFIG_NET_DSA_MV88E6XXX_PTP */
static inline long mv88e6xxx_hwtstamp_work(struct ptp_clock_info *ptp)
{
return -1;
}
static inline int mv88e6xxx_ptp_setup(struct mv88e6xxx_chip *chip)
{
return 0;
}
static inline void mv88e6xxx_ptp_free(struct mv88e6xxx_chip *chip)
{
}
#endif /* CONFIG_NET_DSA_MV88E6XXX_PTP */
#endif /* _MV88E6XXX_PTP_H */
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