/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * PTP 1588 clock using the IXP46X * * Copyright (C) 2010 OMICRON electronics GmbH */ #ifndef _IXP46X_TS_H_ #define _IXP46X_TS_H_ #define DEFAULT_ADDEND 0xF0000029 #define TICKS_NS_SHIFT 4 struct ixp46x_channel_ctl { u32 ch_control; /* 0x40 Time Synchronization Channel Control */ u32 ch_event; /* 0x44 Time Synchronization Channel Event */ u32 tx_snap_lo; /* 0x48 Transmit Snapshot Low Register */ u32 tx_snap_hi; /* 0x4C Transmit Snapshot High Register */ u32 rx_snap_lo; /* 0x50 Receive Snapshot Low Register */ u32 rx_snap_hi; /* 0x54 Receive Snapshot High Register */ u32 src_uuid_lo; /* 0x58 Source UUID0 Low Register */ u32 src_uuid_hi; /* 0x5C Sequence Identifier/Source UUID0 High */ }; struct ixp46x_ts_regs { u32 control; /* 0x00 Time Sync Control Register */ u32 event; /* 0x04 Time Sync Event Register */ u32 addend; /* 0x08 Time Sync Addend Register */ u32 accum; /* 0x0C Time Sync Accumulator Register */ u32 test; /* 0x10 Time Sync Test Register */ u32 unused; /* 0x14 */ u32 rsystime_lo; /* 0x18 RawSystemTime_Low Register */ u32 rsystime_hi; /* 0x1C RawSystemTime_High Register */ u32 systime_lo; /* 0x20 SystemTime_Low Register */ u32 systime_hi; /* 0x24 SystemTime_High Register */ u32 trgt_lo; /* 0x28 TargetTime_Low Register */ u32 trgt_hi; /* 0x2C TargetTime_High Register */ u32 asms_lo; /* 0x30 Auxiliary Slave Mode Snapshot Low */ u32 asms_hi; /* 0x34 Auxiliary Slave Mode Snapshot High */ u32 amms_lo; /* 0x38 Auxiliary Master Mode Snapshot Low */ u32 amms_hi; /* 0x3C Auxiliary Master Mode Snapshot High */ struct ixp46x_channel_ctl channel[3]; }; /* 0x00 Time Sync Control Register Bits */ #define TSCR_AMM (1<<3) #define TSCR_ASM (1<<2) #define TSCR_TTM (1<<1) #define TSCR_RST (1<<0) /* 0x04 Time Sync Event Register Bits */ #define TSER_SNM (1<<3) #define TSER_SNS (1<<2) #define TTIPEND (1<<1) /* 0x40 Time Synchronization Channel Control Register Bits */ #define MASTER_MODE (1<<0) #define TIMESTAMP_ALL (1<<1) /* 0x44 Time Synchronization Channel Event Register Bits */ #define TX_SNAPSHOT_LOCKED (1<<0) #define RX_SNAPSHOT_LOCKED (1<<1) #if IS_ENABLED(CONFIG_PTP_1588_CLOCK_IXP46X) int ixp46x_ptp_find(struct ixp46x_ts_regs *__iomem *regs, int *phc_index); #else static inline int ixp46x_ptp_find(struct ixp46x_ts_regs *__iomem *regs, int *phc_index) { *regs = NULL; *phc_index = -1; return -ENODEV; } #endif #endif