1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * Marvell 88E6xxx Switch PTP support 4 * 5 * Copyright (c) 2008 Marvell Semiconductor 6 * 7 * Copyright (c) 2017 National Instruments 8 * Erik Hons <erik.hons@ni.com> 9 * Brandon Streiff <brandon.streiff@ni.com> 10 * Dane Wagner <dane.wagner@ni.com> 11 */ 12 13 #ifndef _MV88E6XXX_PTP_H 14 #define _MV88E6XXX_PTP_H 15 16 #include "chip.h" 17 18 /* Offset 0x00: TAI Global Config */ 19 #define MV88E6XXX_TAI_CFG 0x00 20 #define MV88E6XXX_TAI_CFG_CAP_OVERWRITE 0x8000 21 #define MV88E6XXX_TAI_CFG_CAP_CTR_START 0x4000 22 #define MV88E6XXX_TAI_CFG_EVREQ_FALLING 0x2000 23 #define MV88E6XXX_TAI_CFG_TRIG_ACTIVE_LO 0x1000 24 #define MV88E6XXX_TAI_CFG_IRL_ENABLE 0x0400 25 #define MV88E6XXX_TAI_CFG_TRIG_IRQ_EN 0x0200 26 #define MV88E6XXX_TAI_CFG_EVREQ_IRQ_EN 0x0100 27 #define MV88E6XXX_TAI_CFG_TRIG_LOCK 0x0080 28 #define MV88E6XXX_TAI_CFG_BLOCK_UPDATE 0x0008 29 #define MV88E6XXX_TAI_CFG_MULTI_PTP 0x0004 30 #define MV88E6XXX_TAI_CFG_TRIG_MODE_ONESHOT 0x0002 31 #define MV88E6XXX_TAI_CFG_TRIG_ENABLE 0x0001 32 33 /* Offset 0x01: Timestamp Clock Period (ps) */ 34 #define MV88E6XXX_TAI_CLOCK_PERIOD 0x01 35 36 /* Offset 0x02/0x03: Trigger Generation Amount */ 37 #define MV88E6XXX_TAI_TRIG_GEN_AMOUNT_LO 0x02 38 #define MV88E6XXX_TAI_TRIG_GEN_AMOUNT_HI 0x03 39 40 /* Offset 0x04: Clock Compensation */ 41 #define MV88E6XXX_TAI_TRIG_CLOCK_COMP 0x04 42 43 /* Offset 0x05: Trigger Configuration */ 44 #define MV88E6XXX_TAI_TRIG_CFG 0x05 45 46 /* Offset 0x06: Ingress Rate Limiter Clock Generation Amount */ 47 #define MV88E6XXX_TAI_IRL_AMOUNT 0x06 48 49 /* Offset 0x07: Ingress Rate Limiter Compensation */ 50 #define MV88E6XXX_TAI_IRL_COMP 0x07 51 52 /* Offset 0x08: Ingress Rate Limiter Compensation */ 53 #define MV88E6XXX_TAI_IRL_COMP_PS 0x08 54 55 /* Offset 0x09: Event Status */ 56 #define MV88E6XXX_TAI_EVENT_STATUS 0x09 57 #define MV88E6XXX_TAI_EVENT_STATUS_CAP_TRIG 0x4000 58 #define MV88E6XXX_TAI_EVENT_STATUS_ERROR 0x0200 59 #define MV88E6XXX_TAI_EVENT_STATUS_VALID 0x0100 60 #define MV88E6XXX_TAI_EVENT_STATUS_CTR_MASK 0x00ff 61 62 /* Offset 0x0A/0x0B: Event Time */ 63 #define MV88E6XXX_TAI_EVENT_TIME_LO 0x0a 64 #define MV88E6XXX_TAI_EVENT_TYPE_HI 0x0b 65 66 /* Offset 0x0E/0x0F: PTP Global Time */ 67 #define MV88E6XXX_TAI_TIME_LO 0x0e 68 #define MV88E6XXX_TAI_TIME_HI 0x0f 69 70 /* Offset 0x10/0x11: Trig Generation Time */ 71 #define MV88E6XXX_TAI_TRIG_TIME_LO 0x10 72 #define MV88E6XXX_TAI_TRIG_TIME_HI 0x11 73 74 /* Offset 0x12: Lock Status */ 75 #define MV88E6XXX_TAI_LOCK_STATUS 0x12 76 77 /* Offset 0x00: Ether Type */ 78 #define MV88E6XXX_PTP_GC_ETYPE 0x00 79 80 /* 6165 Global Control Registers */ 81 /* Offset 0x00: Ether Type */ 82 #define MV88E6XXX_PTP_GC_ETYPE 0x00 83 84 /* Offset 0x01: Message ID */ 85 #define MV88E6XXX_PTP_GC_MESSAGE_ID 0x01 86 87 /* Offset 0x02: Time Stamp Arrive Time */ 88 #define MV88E6XXX_PTP_GC_TS_ARR_PTR 0x02 89 90 /* Offset 0x03: Port Arrival Interrupt Enable */ 91 #define MV88E6XXX_PTP_GC_PORT_ARR_INT_EN 0x03 92 93 /* Offset 0x04: Port Departure Interrupt Enable */ 94 #define MV88E6XXX_PTP_GC_PORT_DEP_INT_EN 0x04 95 96 /* Offset 0x05: Configuration */ 97 #define MV88E6XXX_PTP_GC_CONFIG 0x05 98 #define MV88E6XXX_PTP_GC_CONFIG_DIS_OVERWRITE BIT(1) 99 #define MV88E6XXX_PTP_GC_CONFIG_DIS_TS BIT(0) 100 101 /* Offset 0x8: Interrupt Status */ 102 #define MV88E6XXX_PTP_GC_INT_STATUS 0x08 103 104 /* Offset 0x9/0xa: Global Time */ 105 #define MV88E6XXX_PTP_GC_TIME_LO 0x09 106 #define MV88E6XXX_PTP_GC_TIME_HI 0x0A 107 108 /* 6165 Per Port Registers */ 109 /* Offset 0: Arrival Time 0 Status */ 110 #define MV88E6165_PORT_PTP_ARR0_STS 0x00 111 112 /* Offset 0x01/0x02: PTP Arrival 0 Time */ 113 #define MV88E6165_PORT_PTP_ARR0_TIME_LO 0x01 114 #define MV88E6165_PORT_PTP_ARR0_TIME_HI 0x02 115 116 /* Offset 0x03: PTP Arrival 0 Sequence ID */ 117 #define MV88E6165_PORT_PTP_ARR0_SEQID 0x03 118 119 /* Offset 0x04: PTP Arrival 1 Status */ 120 #define MV88E6165_PORT_PTP_ARR1_STS 0x04 121 122 /* Offset 0x05/0x6E: PTP Arrival 1 Time */ 123 #define MV88E6165_PORT_PTP_ARR1_TIME_LO 0x05 124 #define MV88E6165_PORT_PTP_ARR1_TIME_HI 0x06 125 126 /* Offset 0x07: PTP Arrival 1 Sequence ID */ 127 #define MV88E6165_PORT_PTP_ARR1_SEQID 0x07 128 129 /* Offset 0x08: PTP Departure Status */ 130 #define MV88E6165_PORT_PTP_DEP_STS 0x08 131 132 /* Offset 0x09/0x0a: PTP Deperture Time */ 133 #define MV88E6165_PORT_PTP_DEP_TIME_LO 0x09 134 #define MV88E6165_PORT_PTP_DEP_TIME_HI 0x0a 135 136 /* Offset 0x0b: PTP Departure Sequence ID */ 137 #define MV88E6165_PORT_PTP_DEP_SEQID 0x0b 138 139 /* Offset 0x0d: Port Status */ 140 #define MV88E6164_PORT_STATUS 0x0d 141 142 #ifdef CONFIG_NET_DSA_MV88E6XXX_PTP 143 144 long mv88e6xxx_hwtstamp_work(struct ptp_clock_info *ptp); 145 int mv88e6xxx_ptp_setup(struct mv88e6xxx_chip *chip); 146 void mv88e6xxx_ptp_free(struct mv88e6xxx_chip *chip); 147 148 #define ptp_to_chip(ptp) container_of(ptp, struct mv88e6xxx_chip, \ 149 ptp_clock_info) 150 151 extern const struct mv88e6xxx_ptp_ops mv88e6165_ptp_ops; 152 extern const struct mv88e6xxx_ptp_ops mv88e6250_ptp_ops; 153 extern const struct mv88e6xxx_ptp_ops mv88e6352_ptp_ops; 154 155 #else /* !CONFIG_NET_DSA_MV88E6XXX_PTP */ 156 157 static inline long mv88e6xxx_hwtstamp_work(struct ptp_clock_info *ptp) 158 { 159 return -1; 160 } 161 162 static inline int mv88e6xxx_ptp_setup(struct mv88e6xxx_chip *chip) 163 { 164 return 0; 165 } 166 167 static inline void mv88e6xxx_ptp_free(struct mv88e6xxx_chip *chip) 168 { 169 } 170 171 static const struct mv88e6xxx_ptp_ops mv88e6165_ptp_ops = {}; 172 static const struct mv88e6xxx_ptp_ops mv88e6250_ptp_ops = {}; 173 static const struct mv88e6xxx_ptp_ops mv88e6352_ptp_ops = {}; 174 175 #endif /* CONFIG_NET_DSA_MV88E6XXX_PTP */ 176 177 #endif /* _MV88E6XXX_PTP_H */ 178