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/*
* Marvell 88E6xxx Switch hardware timestamping 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_HWTSTAMP_H
#define _MV88E6XXX_HWTSTAMP_H
#include "chip.h"
/* Global PTP registers */
/* Offset 0x00: PTP EtherType */
#define MV88E6XXX_PTP_ETHERTYPE 0x00
/* Offset 0x01: Message Type Timestamp Enables */
#define MV88E6XXX_PTP_MSGTYPE 0x01
#define MV88E6XXX_PTP_MSGTYPE_SYNC 0x0001
#define MV88E6XXX_PTP_MSGTYPE_DELAY_REQ 0x0002
#define MV88E6XXX_PTP_MSGTYPE_PDLAY_REQ 0x0004
#define MV88E6XXX_PTP_MSGTYPE_PDLAY_RES 0x0008
#define MV88E6XXX_PTP_MSGTYPE_ALL_EVENT 0x000f
/* Offset 0x02: Timestamp Arrival Capture Pointers */
#define MV88E6XXX_PTP_TS_ARRIVAL_PTR 0x02
/* Offset 0x07: PTP Global Configuration */
#define MV88E6341_PTP_CFG 0x07
#define MV88E6341_PTP_CFG_UPDATE 0x8000
#define MV88E6341_PTP_CFG_IDX_MASK 0x7f00
#define MV88E6341_PTP_CFG_DATA_MASK 0x00ff
#define MV88E6341_PTP_CFG_MODE_IDX 0x0
#define MV88E6341_PTP_CFG_MODE_TS_AT_PHY 0x00
#define MV88E6341_PTP_CFG_MODE_TS_AT_MAC 0x80
/* Offset 0x08: PTP Interrupt Status */
#define MV88E6XXX_PTP_IRQ_STATUS 0x08
/* Per-Port PTP Registers */
/* Offset 0x00: PTP Configuration 0 */
#define MV88E6XXX_PORT_PTP_CFG0 0x00
#define MV88E6XXX_PORT_PTP_CFG0_TSPEC_SHIFT 12
#define MV88E6XXX_PORT_PTP_CFG0_TSPEC_MASK 0xf000
#define MV88E6XXX_PORT_PTP_CFG0_TSPEC_1588 0x0000
#define MV88E6XXX_PORT_PTP_CFG0_TSPEC_8021AS 0x1000
#define MV88E6XXX_PORT_PTP_CFG0_DISABLE_TSPEC_MATCH 0x0800
#define MV88E6XXX_PORT_PTP_CFG0_DISABLE_OVERWRITE 0x0002
#define MV88E6XXX_PORT_PTP_CFG0_DISABLE_PTP 0x0001
/* Offset 0x01: PTP Configuration 1 */
#define MV88E6XXX_PORT_PTP_CFG1 0x01
/* Offset 0x02: PTP Configuration 2 */
#define MV88E6XXX_PORT_PTP_CFG2 0x02
#define MV88E6XXX_PORT_PTP_CFG2_EMBED_ARRIVAL 0x1000
#define MV88E6XXX_PORT_PTP_CFG2_DEP_IRQ_EN 0x0002
#define MV88E6XXX_PORT_PTP_CFG2_ARR_IRQ_EN 0x0001
/* Offset 0x03: PTP LED Configuration */
#define MV88E6XXX_PORT_PTP_LED_CFG 0x03
/* Offset 0x08: PTP Arrival 0 Status */
#define MV88E6XXX_PORT_PTP_ARR0_STS 0x08
/* Offset 0x09/0x0A: PTP Arrival 0 Time */
#define MV88E6XXX_PORT_PTP_ARR0_TIME_LO 0x09
#define MV88E6XXX_PORT_PTP_ARR0_TIME_HI 0x0a
/* Offset 0x0B: PTP Arrival 0 Sequence ID */
#define MV88E6XXX_PORT_PTP_ARR0_SEQID 0x0b
/* Offset 0x0C: PTP Arrival 1 Status */
#define MV88E6XXX_PORT_PTP_ARR1_STS 0x0c
/* Offset 0x0D/0x0E: PTP Arrival 1 Time */
#define MV88E6XXX_PORT_PTP_ARR1_TIME_LO 0x0d
#define MV88E6XXX_PORT_PTP_ARR1_TIME_HI 0x0e
/* Offset 0x0F: PTP Arrival 1 Sequence ID */
#define MV88E6XXX_PORT_PTP_ARR1_SEQID 0x0f
/* Offset 0x10: PTP Departure Status */
#define MV88E6XXX_PORT_PTP_DEP_STS 0x10
/* Offset 0x11/0x12: PTP Deperture Time */
#define MV88E6XXX_PORT_PTP_DEP_TIME_LO 0x11
#define MV88E6XXX_PORT_PTP_DEP_TIME_HI 0x12
/* Offset 0x13: PTP Departure Sequence ID */
#define MV88E6XXX_PORT_PTP_DEP_SEQID 0x13
/* Status fields for arrival and depature timestamp status registers */
#define MV88E6XXX_PTP_TS_STATUS_MASK 0x0006
#define MV88E6XXX_PTP_TS_STATUS_NORMAL 0x0000
#define MV88E6XXX_PTP_TS_STATUS_OVERWITTEN 0x0002
#define MV88E6XXX_PTP_TS_STATUS_DISCARDED 0x0004
#define MV88E6XXX_PTP_TS_VALID 0x0001
#ifdef CONFIG_NET_DSA_MV88E6XXX_PTP
int mv88e6xxx_port_hwtstamp_set(struct dsa_switch *ds, int port,
struct ifreq *ifr);
int mv88e6xxx_port_hwtstamp_get(struct dsa_switch *ds, int port,
struct ifreq *ifr);
bool mv88e6xxx_port_rxtstamp(struct dsa_switch *ds, int port,
struct sk_buff *clone, unsigned int type);
bool mv88e6xxx_port_txtstamp(struct dsa_switch *ds, int port,
struct sk_buff *clone, unsigned int type);
int mv88e6xxx_get_ts_info(struct dsa_switch *ds, int port,
struct ethtool_ts_info *info);
int mv88e6xxx_hwtstamp_setup(struct mv88e6xxx_chip *chip);
void mv88e6xxx_hwtstamp_free(struct mv88e6xxx_chip *chip);
#else /* !CONFIG_NET_DSA_MV88E6XXX_PTP */
static inline int mv88e6xxx_port_hwtstamp_set(struct dsa_switch *ds,
int port, struct ifreq *ifr)
{
return -EOPNOTSUPP;
}
static inline int mv88e6xxx_port_hwtstamp_get(struct dsa_switch *ds,
int port, struct ifreq *ifr)
{
return -EOPNOTSUPP;
}
static inline bool mv88e6xxx_port_rxtstamp(struct dsa_switch *ds, int port,
struct sk_buff *clone,
unsigned int type)
{
return false;
}
static inline bool mv88e6xxx_port_txtstamp(struct dsa_switch *ds, int port,
struct sk_buff *clone,
unsigned int type)
{
return false;
}
static inline int mv88e6xxx_get_ts_info(struct dsa_switch *ds, int port,
struct ethtool_ts_info *info)
{
return -EOPNOTSUPP;
}
static inline int mv88e6xxx_hwtstamp_setup(struct mv88e6xxx_chip *chip)
{
return 0;
}
static inline void mv88e6xxx_hwtstamp_free(struct mv88e6xxx_chip *chip)
{
}
#endif /* CONFIG_NET_DSA_MV88E6XXX_PTP */
#endif /* _MV88E6XXX_HWTSTAMP_H */
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