diff options
Diffstat (limited to 'drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.h')
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.h | 142 |
1 files changed, 89 insertions, 53 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.h b/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.h index 3dbc047622fa..3fe0e3a80e80 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.h +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.h @@ -1,74 +1,110 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /****************************************************************************** PTP Header file Copyright (C) 2013 Vayavya Labs Pvt Ltd - This program is free software; you can redistribute it and/or modify it - under the terms and conditions of the GNU General Public License, - version 2, as published by the Free Software Foundation. - - This program is distributed in the hope it will be useful, but WITHOUT - ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - more details. - - You should have received a copy of the GNU General Public License along with - this program; if not, write to the Free Software Foundation, Inc., - 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. - - The full GNU General Public License is included in this distribution in - the file called "COPYING". Author: Rayagond Kokatanur <rayagond@vayavyalabs.com> ******************************************************************************/ -#ifndef __STMMAC_PTP_H__ -#define __STMMAC_PTP_H__ +#ifndef __STMMAC_PTP_H__ +#define __STMMAC_PTP_H__ -#define STMMAC_SYSCLOCK 62500000 +#define PTP_XGMAC_OFFSET 0xd00 +#define PTP_GMAC4_OFFSET 0xb00 +#define PTP_GMAC3_X_OFFSET 0x700 /* IEEE 1588 PTP register offsets */ -#define PTP_TCR 0x0700 /* Timestamp Control Reg */ -#define PTP_SSIR 0x0704 /* Sub-Second Increment Reg */ -#define PTP_STSR 0x0708 /* System Time – Seconds Regr */ -#define PTP_STNSR 0x070C /* System Time – Nanoseconds Reg */ -#define PTP_STSUR 0x0710 /* System Time – Seconds Update Reg */ -#define PTP_STNSUR 0x0714 /* System Time – Nanoseconds Update Reg */ -#define PTP_TAR 0x0718 /* Timestamp Addend Reg */ -#define PTP_TTSR 0x071C /* Target Time Seconds Reg */ -#define PTP_TTNSR 0x0720 /* Target Time Nanoseconds Reg */ -#define PTP_STHWSR 0x0724 /* System Time - Higher Word Seconds Reg */ -#define PTP_TSR 0x0728 /* Timestamp Status */ - -#define PTP_STNSUR_ADDSUB_SHIFT 31 - -/* PTP TCR defines */ -#define PTP_TCR_TSENA 0x00000001 /* Timestamp Enable */ -#define PTP_TCR_TSCFUPDT 0x00000002 /* Timestamp Fine/Coarse Update */ -#define PTP_TCR_TSINIT 0x00000004 /* Timestamp Initialize */ -#define PTP_TCR_TSUPDT 0x00000008 /* Timestamp Update */ -/* Timestamp Interrupt Trigger Enable */ -#define PTP_TCR_TSTRIG 0x00000010 -#define PTP_TCR_TSADDREG 0x00000020 /* Addend Reg Update */ -#define PTP_TCR_TSENALL 0x00000100 /* Enable Timestamp for All Frames */ -/* Timestamp Digital or Binary Rollover Control */ -#define PTP_TCR_TSCTRLSSR 0x00000200 +#define PTP_TCR 0x00 /* Timestamp Control Reg */ +#define PTP_SSIR 0x04 /* Sub-Second Increment Reg */ +#define PTP_STSR 0x08 /* System Time – Seconds Regr */ +#define PTP_STNSR 0x0c /* System Time – Nanoseconds Reg */ +#define PTP_STSUR 0x10 /* System Time – Seconds Update Reg */ +#define PTP_STNSUR 0x14 /* System Time – Nanoseconds Update Reg */ +#define PTP_TAR 0x18 /* Timestamp Addend Reg */ +#define PTP_ACR 0x40 /* Auxiliary Control Reg */ +#define PTP_ATNR 0x48 /* Auxiliary Timestamp - Nanoseconds Reg */ +#define PTP_ATSR 0x4c /* Auxiliary Timestamp - Seconds Reg */ +#define PTP_TS_INGR_CORR_NS 0x58 /* Ingress timestamp correction nanoseconds */ +#define PTP_TS_EGR_CORR_NS 0x5C /* Egress timestamp correction nanoseconds*/ +#define PTP_TS_INGR_CORR_SNS 0x60 /* Ingress timestamp correction subnanoseconds */ +#define PTP_TS_EGR_CORR_SNS 0x64 /* Egress timestamp correction subnanoseconds */ +#define PTP_TS_INGR_LAT 0x68 /* MAC internal Ingress Latency */ +#define PTP_TS_EGR_LAT 0x6c /* MAC internal Egress Latency */ +#define PTP_STNSUR_ADDSUB_SHIFT 31 +#define PTP_DIGITAL_ROLLOVER_MODE 0x3B9ACA00 /* 10e9-1 ns */ +#define PTP_BINARY_ROLLOVER_MODE 0x80000000 /* ~0.466 ns */ + +/* PTP Timestamp control register defines */ +#define PTP_TCR_TSENA BIT(0) /* Timestamp Enable */ +#define PTP_TCR_TSCFUPDT BIT(1) /* Timestamp Fine/Coarse Update */ +#define PTP_TCR_TSINIT BIT(2) /* Timestamp Initialize */ +#define PTP_TCR_TSUPDT BIT(3) /* Timestamp Update */ +#define PTP_TCR_TSTRIG BIT(4) /* Timestamp Interrupt Trigger Enable */ +#define PTP_TCR_TSADDREG BIT(5) /* Addend Reg Update */ +#define PTP_TCR_TSENALL BIT(8) /* Enable Timestamp for All Frames */ +#define PTP_TCR_TSCTRLSSR BIT(9) /* Digital or Binary Rollover Control */ /* Enable PTP packet Processing for Version 2 Format */ -#define PTP_TCR_TSVER2ENA 0x00000400 +#define PTP_TCR_TSVER2ENA BIT(10) /* Enable Processing of PTP over Ethernet Frames */ -#define PTP_TCR_TSIPENA 0x00000800 +#define PTP_TCR_TSIPENA BIT(11) /* Enable Processing of PTP Frames Sent over IPv6-UDP */ -#define PTP_TCR_TSIPV6ENA 0x00001000 +#define PTP_TCR_TSIPV6ENA BIT(12) /* Enable Processing of PTP Frames Sent over IPv4-UDP */ -#define PTP_TCR_TSIPV4ENA 0x00002000 +#define PTP_TCR_TSIPV4ENA BIT(13) /* Enable Timestamp Snapshot for Event Messages */ -#define PTP_TCR_TSEVNTENA 0x00004000 +#define PTP_TCR_TSEVNTENA BIT(14) /* Enable Snapshot for Messages Relevant to Master */ -#define PTP_TCR_TSMSTRENA 0x00008000 -/* Select PTP packets for Taking Snapshots */ -#define PTP_TCR_SNAPTYPSEL_1 0x00010000 +#define PTP_TCR_TSMSTRENA BIT(15) +/* Select PTP packets for Taking Snapshots + * On gmac4 specifically: + * Enable SYNC, Pdelay_Req, Pdelay_Resp when TSEVNTENA is enabled. + * or + * Enable SYNC, Follow_Up, Delay_Req, Delay_Resp, Pdelay_Req, Pdelay_Resp, + * Pdelay_Resp_Follow_Up if TSEVNTENA is disabled + */ +#define PTP_TCR_SNAPTYPSEL_1 BIT(16) /* Enable MAC address for PTP Frame Filtering */ -#define PTP_TCR_TSENMACADDR 0x00040000 +#define PTP_TCR_TSENMACADDR BIT(18) + +/* SSIR defines */ +#define PTP_SSIR_SSINC_MAX 0xff +#define GMAC4_PTP_SSIR_SSINC_SHIFT 16 + +/* Auxiliary Control defines */ +#define PTP_ACR_ATSFC BIT(0) /* Auxiliary Snapshot FIFO Clear */ +#define PTP_ACR_ATSEN0 BIT(4) /* Auxiliary Snapshot 0 Enable */ +#define PTP_ACR_ATSEN1 BIT(5) /* Auxiliary Snapshot 1 Enable */ +#define PTP_ACR_ATSEN2 BIT(6) /* Auxiliary Snapshot 2 Enable */ +#define PTP_ACR_ATSEN3 BIT(7) /* Auxiliary Snapshot 3 Enable */ +#define PTP_ACR_ATSEN(index) (PTP_ACR_ATSEN0 << (index)) +#define PTP_ACR_MASK GENMASK(7, 4) /* Aux Snapshot Mask */ +#define PMC_ART_VALUE0 0x01 /* PMC_ART[15:0] timer value */ +#define PMC_ART_VALUE1 0x02 /* PMC_ART[31:16] timer value */ +#define PMC_ART_VALUE2 0x03 /* PMC_ART[47:32] timer value */ +#define PMC_ART_VALUE3 0x04 /* PMC_ART[63:48] timer value */ +#define GMAC4_ART_TIME_SHIFT 16 /* ART TIME 16-bits shift */ + +enum aux_snapshot { + AUX_SNAPSHOT0 = 0x10, + AUX_SNAPSHOT1 = 0x20, + AUX_SNAPSHOT2 = 0x40, + AUX_SNAPSHOT3 = 0x80, +}; + +struct ptp_clock_info; +struct ptp_clock_request; +struct stmmac_priv; + +int dwmac1000_ptp_enable(struct ptp_clock_info *ptp, + struct ptp_clock_request *rq, int on); + +void dwmac1000_get_ptptime(void __iomem *ptpaddr, u64 *ptp_time); +void dwmac1000_timestamp_interrupt(struct stmmac_priv *priv); + +extern const struct ptp_clock_info stmmac_ptp_clock_ops; +extern const struct ptp_clock_info dwmac1000_ptp_clock_ops; -#endif /* __STMMAC_PTP_H__ */ +#endif /* __STMMAC_PTP_H__ */ |