1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /****************************************************************************** 3 PTP Header file 4 5 Copyright (C) 2013 Vayavya Labs Pvt Ltd 6 7 8 Author: Rayagond Kokatanur <rayagond@vayavyalabs.com> 9 ******************************************************************************/ 10 11 #ifndef __STMMAC_PTP_H__ 12 #define __STMMAC_PTP_H__ 13 14 #define PTP_XGMAC_OFFSET 0xd00 15 #define PTP_GMAC4_OFFSET 0xb00 16 #define PTP_GMAC3_X_OFFSET 0x700 17 18 /* IEEE 1588 PTP register offsets */ 19 #define PTP_TCR 0x00 /* Timestamp Control Reg */ 20 #define PTP_SSIR 0x04 /* Sub-Second Increment Reg */ 21 #define PTP_STSR 0x08 /* System Time – Seconds Regr */ 22 #define PTP_STNSR 0x0c /* System Time – Nanoseconds Reg */ 23 #define PTP_STSUR 0x10 /* System Time – Seconds Update Reg */ 24 #define PTP_STNSUR 0x14 /* System Time – Nanoseconds Update Reg */ 25 #define PTP_TAR 0x18 /* Timestamp Addend Reg */ 26 #define PTP_ACR 0x40 /* Auxiliary Control Reg */ 27 #define PTP_ATNR 0x48 /* Auxiliary Timestamp - Nanoseconds Reg */ 28 #define PTP_ATSR 0x4c /* Auxiliary Timestamp - Seconds Reg */ 29 #define PTP_TS_INGR_CORR_NS 0x58 /* Ingress timestamp correction nanoseconds */ 30 #define PTP_TS_EGR_CORR_NS 0x5C /* Egress timestamp correction nanoseconds*/ 31 #define PTP_TS_INGR_CORR_SNS 0x60 /* Ingress timestamp correction subnanoseconds */ 32 #define PTP_TS_EGR_CORR_SNS 0x64 /* Egress timestamp correction subnanoseconds */ 33 #define PTP_TS_INGR_LAT 0x68 /* MAC internal Ingress Latency */ 34 #define PTP_TS_EGR_LAT 0x6c /* MAC internal Egress Latency */ 35 36 #define PTP_STNSUR_ADDSUB_SHIFT 31 37 #define PTP_DIGITAL_ROLLOVER_MODE 0x3B9ACA00 /* 10e9-1 ns */ 38 #define PTP_BINARY_ROLLOVER_MODE 0x80000000 /* ~0.466 ns */ 39 40 /* PTP Timestamp control register defines */ 41 #define PTP_TCR_TSENA BIT(0) /* Timestamp Enable */ 42 #define PTP_TCR_TSCFUPDT BIT(1) /* Timestamp Fine/Coarse Update */ 43 #define PTP_TCR_TSINIT BIT(2) /* Timestamp Initialize */ 44 #define PTP_TCR_TSUPDT BIT(3) /* Timestamp Update */ 45 #define PTP_TCR_TSTRIG BIT(4) /* Timestamp Interrupt Trigger Enable */ 46 #define PTP_TCR_TSADDREG BIT(5) /* Addend Reg Update */ 47 #define PTP_TCR_TSENALL BIT(8) /* Enable Timestamp for All Frames */ 48 #define PTP_TCR_TSCTRLSSR BIT(9) /* Digital or Binary Rollover Control */ 49 /* Enable PTP packet Processing for Version 2 Format */ 50 #define PTP_TCR_TSVER2ENA BIT(10) 51 /* Enable Processing of PTP over Ethernet Frames */ 52 #define PTP_TCR_TSIPENA BIT(11) 53 /* Enable Processing of PTP Frames Sent over IPv6-UDP */ 54 #define PTP_TCR_TSIPV6ENA BIT(12) 55 /* Enable Processing of PTP Frames Sent over IPv4-UDP */ 56 #define PTP_TCR_TSIPV4ENA BIT(13) 57 /* Enable Timestamp Snapshot for Event Messages */ 58 #define PTP_TCR_TSEVNTENA BIT(14) 59 /* Enable Snapshot for Messages Relevant to Master */ 60 #define PTP_TCR_TSMSTRENA BIT(15) 61 /* Select PTP packets for Taking Snapshots 62 * On gmac4 specifically: 63 * Enable SYNC, Pdelay_Req, Pdelay_Resp when TSEVNTENA is enabled. 64 * or 65 * Enable SYNC, Follow_Up, Delay_Req, Delay_Resp, Pdelay_Req, Pdelay_Resp, 66 * Pdelay_Resp_Follow_Up if TSEVNTENA is disabled 67 */ 68 #define PTP_TCR_SNAPTYPSEL_1 BIT(16) 69 /* Enable MAC address for PTP Frame Filtering */ 70 #define PTP_TCR_TSENMACADDR BIT(18) 71 72 /* SSIR defines */ 73 #define PTP_SSIR_SSINC_MAX 0xff 74 #define GMAC4_PTP_SSIR_SSINC_SHIFT 16 75 76 /* Auxiliary Control defines */ 77 #define PTP_ACR_ATSFC BIT(0) /* Auxiliary Snapshot FIFO Clear */ 78 #define PTP_ACR_ATSEN0 BIT(4) /* Auxiliary Snapshot 0 Enable */ 79 #define PTP_ACR_ATSEN1 BIT(5) /* Auxiliary Snapshot 1 Enable */ 80 #define PTP_ACR_ATSEN2 BIT(6) /* Auxiliary Snapshot 2 Enable */ 81 #define PTP_ACR_ATSEN3 BIT(7) /* Auxiliary Snapshot 3 Enable */ 82 #define PTP_ACR_ATSEN(index) (PTP_ACR_ATSEN0 << (index)) 83 #define PTP_ACR_MASK GENMASK(7, 4) /* Aux Snapshot Mask */ 84 #define PMC_ART_VALUE0 0x01 /* PMC_ART[15:0] timer value */ 85 #define PMC_ART_VALUE1 0x02 /* PMC_ART[31:16] timer value */ 86 #define PMC_ART_VALUE2 0x03 /* PMC_ART[47:32] timer value */ 87 #define PMC_ART_VALUE3 0x04 /* PMC_ART[63:48] timer value */ 88 #define GMAC4_ART_TIME_SHIFT 16 /* ART TIME 16-bits shift */ 89 90 enum aux_snapshot { 91 AUX_SNAPSHOT0 = 0x10, 92 AUX_SNAPSHOT1 = 0x20, 93 AUX_SNAPSHOT2 = 0x40, 94 AUX_SNAPSHOT3 = 0x80, 95 }; 96 97 #endif /* __STMMAC_PTP_H__ */ 98