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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
90enum aux_snapshot {
91 AUX_SNAPSHOT0 = 0x10,
92 AUX_SNAPSHOT1 = 0x20,
93 AUX_SNAPSHOT2 = 0x40,
94 AUX_SNAPSHOT3 = 0x80,
95};
96
97struct ptp_clock_info;
98struct ptp_clock_request;
99struct stmmac_priv;
100
101int dwmac1000_ptp_enable(struct ptp_clock_info *ptp,
102 struct ptp_clock_request *rq, int on);
103
104void dwmac1000_get_ptptime(void __iomem *ptpaddr, u64 *ptp_time);
105void dwmac1000_timestamp_interrupt(struct stmmac_priv *priv);
106
107#endif /* __STMMAC_PTP_H__ */
1/******************************************************************************
2 PTP Header file
3
4 Copyright (C) 2013 Vayavya Labs Pvt Ltd
5
6 This program is free software; you can redistribute it and/or modify it
7 under the terms and conditions of the GNU General Public License,
8 version 2, as published by the Free Software Foundation.
9
10 This program is distributed in the hope it will be useful, but WITHOUT
11 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
13 more details.
14
15 You should have received a copy of the GNU General Public License along with
16 this program; if not, write to the Free Software Foundation, Inc.,
17 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
18
19 The full GNU General Public License is included in this distribution in
20 the file called "COPYING".
21
22 Author: Rayagond Kokatanur <rayagond@vayavyalabs.com>
23******************************************************************************/
24
25#ifndef __STMMAC_PTP_H__
26#define __STMMAC_PTP_H__
27
28#define STMMAC_SYSCLOCK 62500000
29
30/* IEEE 1588 PTP register offsets */
31#define PTP_TCR 0x0700 /* Timestamp Control Reg */
32#define PTP_SSIR 0x0704 /* Sub-Second Increment Reg */
33#define PTP_STSR 0x0708 /* System Time – Seconds Regr */
34#define PTP_STNSR 0x070C /* System Time – Nanoseconds Reg */
35#define PTP_STSUR 0x0710 /* System Time – Seconds Update Reg */
36#define PTP_STNSUR 0x0714 /* System Time – Nanoseconds Update Reg */
37#define PTP_TAR 0x0718 /* Timestamp Addend Reg */
38#define PTP_TTSR 0x071C /* Target Time Seconds Reg */
39#define PTP_TTNSR 0x0720 /* Target Time Nanoseconds Reg */
40#define PTP_STHWSR 0x0724 /* System Time - Higher Word Seconds Reg */
41#define PTP_TSR 0x0728 /* Timestamp Status */
42
43#define PTP_STNSUR_ADDSUB_SHIFT 31
44
45/* PTP TCR defines */
46#define PTP_TCR_TSENA 0x00000001 /* Timestamp Enable */
47#define PTP_TCR_TSCFUPDT 0x00000002 /* Timestamp Fine/Coarse Update */
48#define PTP_TCR_TSINIT 0x00000004 /* Timestamp Initialize */
49#define PTP_TCR_TSUPDT 0x00000008 /* Timestamp Update */
50/* Timestamp Interrupt Trigger Enable */
51#define PTP_TCR_TSTRIG 0x00000010
52#define PTP_TCR_TSADDREG 0x00000020 /* Addend Reg Update */
53#define PTP_TCR_TSENALL 0x00000100 /* Enable Timestamp for All Frames */
54/* Timestamp Digital or Binary Rollover Control */
55#define PTP_TCR_TSCTRLSSR 0x00000200
56
57/* Enable PTP packet Processing for Version 2 Format */
58#define PTP_TCR_TSVER2ENA 0x00000400
59/* Enable Processing of PTP over Ethernet Frames */
60#define PTP_TCR_TSIPENA 0x00000800
61/* Enable Processing of PTP Frames Sent over IPv6-UDP */
62#define PTP_TCR_TSIPV6ENA 0x00001000
63/* Enable Processing of PTP Frames Sent over IPv4-UDP */
64#define PTP_TCR_TSIPV4ENA 0x00002000
65/* Enable Timestamp Snapshot for Event Messages */
66#define PTP_TCR_TSEVNTENA 0x00004000
67/* Enable Snapshot for Messages Relevant to Master */
68#define PTP_TCR_TSMSTRENA 0x00008000
69/* Select PTP packets for Taking Snapshots */
70#define PTP_TCR_SNAPTYPSEL_1 0x00010000
71/* Enable MAC address for PTP Frame Filtering */
72#define PTP_TCR_TSENMACADDR 0x00040000
73
74#endif /* __STMMAC_PTP_H__ */