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kernel add
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/*
* PTP 1588 clock using the IXP46X
*
* Copyright (C) 2010 OMICRON electronics GmbH
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#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)
/* The ptp_ixp46x module will set this variable */
extern int ixp46x_phc_index;
#endif
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