diff options
Diffstat (limited to 'drivers/net/fec_1588.h')
| -rw-r--r-- | drivers/net/fec_1588.h | 217 |
1 files changed, 217 insertions, 0 deletions
diff --git a/drivers/net/fec_1588.h b/drivers/net/fec_1588.h new file mode 100644 index 000000000000..bb43c66f3bc1 --- /dev/null +++ b/drivers/net/fec_1588.h @@ -0,0 +1,217 @@ +/* + * drivers/net/fec_1588.h + * + * Copyright (C) 2010 Freescale Semiconductor, Inc. + * + * 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., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + * + */ + +#ifndef FEC_1588_H +#define FEC_1588_H + +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/circ_buf.h> + +#define FALSE 0 +#define TRUE 1 + +/* FEC 1588 register bits */ +#define FEC_T_CTRL_SLAVE 0x00002000 +#define FEC_T_CTRL_CAPTURE 0x00000800 +#define FEC_T_CTRL_RESTART 0x00000200 +#define FEC_T_CTRL_PERIOD_RST 0x00000030 +#define FEC_T_CTRL_ENABLE 0x00000001 + +#define FEC_T_INC_MASK 0x0000007f +#define FEC_T_INC_OFFSET 0 +#define FEC_T_INC_CORR_MASK 0x00007f00 +#define FEC_T_INC_CORR_OFFSET 8 + +#define FEC_T_INC_40MHZ 25 +#define FEC_ATIME_40MHZ 40000000 + +#define FEC_T_PERIOD_ONE_SEC 0x3B9ACA00 + +/* IEEE 1588 definition */ +#define FEC_ECNTRL_TS_EN 0x10 +#define PTP_MAJOR 232 /*the temporary major number + *used by PTP driver, the major + *number 232~239 is unassigned*/ + +#define DEFAULT_PTP_RX_BUF_SZ 2048 +#define DEFAULT_PTP_TX_BUF_SZ 16 +#define PTP_MSG_SYNC 0x0 +#define PTP_MSG_DEL_REQ 0x1 +#define PTP_MSG_P_DEL_REQ 0x2 +#define PTP_MSG_P_DEL_RESP 0x3 +#define PTP_MSG_DEL_RESP 0x4 +#define PTP_MSG_ALL_OTHER 0x5 + +#define PTP_GET_TX_TIMESTAMP 0x1 +#define PTP_GET_RX_TIMESTAMP 0x9 +#define PTP_SET_RTC_TIME 0x3 +#define PTP_SET_COMPENSATION 0x4 +#define PTP_GET_CURRENT_TIME 0x5 +#define PTP_FLUSH_TIMESTAMP 0x6 +#define PTP_ADJ_ADDEND 0x7 +#define PTP_GET_ORIG_COMP 0x8 +#define PTP_GET_ADDEND 0xB +#define PTP_GET_RX_TIMESTAMP_PDELAY_REQ 0xC +#define PTP_GET_RX_TIMESTAMP_PDELAY_RESP 0xD + +#define FEC_PTP_DOMAIN_DLFT 0xe0000181 +#define FEC_PTP_IP_OFFS 0xE +#define FEC_PTP_UDP_OFFS 0x22 +#define FEC_PTP_MSG_TYPE_OFFS 0x2A +#define FEC_PTP_SPORT_ID_OFFS 0x3E +#define FEC_PTP_SEQ_ID_OFFS 0x48 +#define FEC_PTP_CTRL_OFFS 0x4A +#define FEC_PACKET_TYPE_UDP 0x11 + +#define FEC_PTP_ORIG_COMP 0x15555555 + +/* PTP standard time representation structure */ +struct ptp_time{ + u64 sec; /* seconds */ + u32 nsec; /* nanoseconds */ +}; + +/* Structure for PTP Time Stamp */ +struct fec_ptp_data_t { + u8 spid[10]; + int key; + struct ptp_time ts_time; +}; + +/* interface for PTP driver command GET_TX_TIME */ +struct ptp_ts_data { + /* PTP version */ + u8 version; + /* PTP source port ID */ + u8 spid[10]; + /* PTP sequence ID */ + u16 seq_id; + /* PTP message type */ + u8 message_type; + /* PTP timestamp */ + struct ptp_time ts; +}; + +/* interface for PTP driver command SET_RTC_TIME/GET_CURRENT_TIME */ +struct ptp_rtc_time { + struct ptp_time rtc_time; +}; + +/* interface for PTP driver command SET_COMPENSATION */ +struct ptp_set_comp { + u32 drift; + bool o_ops; + u32 freq_compensation; +}; + +/* interface for PTP driver command GET_ORIG_COMP */ +struct ptp_get_comp { + /* the initial compensation value */ + u32 dw_origcomp; + /* the minimum compensation value */ + u32 dw_mincomp; + /*the max compensation value*/ + u32 dw_maxcomp; + /*the min drift applying min compensation value in ppm*/ + u32 dw_mindrift; + /*the max drift applying max compensation value in ppm*/ + u32 dw_maxdrift; +}; + +struct ptp_time_correct { + u32 corr_period; + u32 corr_inc; +}; + +/* PTP message version */ +#define PTP_1588_MSG_VER_1 1 +#define PTP_1588_MSG_VER_2 2 + +#define BD_ENET_TX_TS 0x20000000 +#define BD_ENET_TX_BDU 0x80000000 + +struct fec_ptp_private { + void __iomem *hwp; + int dev_id; + + struct circ_buf rx_time_sync; + struct circ_buf rx_time_del_req; + struct circ_buf rx_time_pdel_req; + struct circ_buf rx_time_pdel_resp; + struct circ_buf tx_time_sync; + struct circ_buf tx_time_del_req; + struct circ_buf tx_time_pdel_req; + struct circ_buf tx_time_pdel_resp; + spinlock_t ptp_lock; + spinlock_t cnt_lock; + + u64 prtc; + u8 ptp_active; + u8 ptp_slave; + struct circ_buf txstamp; +}; + +#ifdef CONFIG_FEC_1588 +static inline int fec_ptp_malloc_priv(struct fec_ptp_private **priv) +{ + *priv = kzalloc(sizeof(struct fec_ptp_private), GFP_KERNEL); + return 1; +} +extern int fec_ptp_init(struct fec_ptp_private *priv, int id); +extern void fec_ptp_cleanup(struct fec_ptp_private *priv); +extern int fec_ptp_start(struct fec_ptp_private *priv); +extern void fec_ptp_stop(struct fec_ptp_private *priv); +extern int fec_ptp_do_txstamp(struct sk_buff *skb); +extern void fec_ptp_store_txstamp(struct fec_ptp_private *priv, + struct sk_buff *skb, + struct bufdesc *bdp); +extern void fec_ptp_store_rxstamp(struct fec_ptp_private *priv, + struct sk_buff *skb, + struct bufdesc *bdp); +#else +static inline int fec_ptp_malloc_priv(struct fec_ptp_private **priv) +{ + return 0; +} +static inline int fec_ptp_init(struct fec_ptp_private *priv, int id) +{ + return 1; +} +static inline void fec_ptp_cleanup(struct fec_ptp_private *priv) { } +static inline int fec_ptp_start(struct fec_ptp_private *priv) +{ + return 1; +} +static inline void fec_ptp_stop(struct fec_ptp_private *priv) {} +static inline int fec_ptp_do_txstamp(struct sk_buff *skb) +{ + return 0; +} +static inline void fec_ptp_store_txstamp(struct fec_ptp_private *priv, + struct sk_buff *skb, + struct bufdesc *bdp) {} +static inline void fec_ptp_store_rxstamp(struct fec_ptp_private *priv, + struct sk_buff *skb, + struct bufdesc *bdp) {} +#endif /* 1588 */ + +#endif |