FreeBSD-5.3/sys/dev/my/if_myreg.h
/*
* Copyright (c) 2002 Myson Technology Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification, immediately at the beginning of the file.
* 2. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* Written by: yen_cw@myson.com.tw available at: http://www.myson.com.tw/
*
* $FreeBSD: src/sys/dev/my/if_myreg.h,v 1.1 2002/04/04 05:22:13 julian Exp $
*
* Myson MTD80x register definitions.
*
*/
#define MY_PAR0 0x0 /* physical address 0-3 */
#define MY_PAR1 0x04 /* physical address 4-5 */
#define MY_MAR0 0x08 /* multicast address 0-3 */
#define MY_MAR1 0x0C /* multicast address 4-7 */
#define MY_FAR0 0x10 /* flow-control address 0-3 */
#define MY_FAR1 0x14 /* flow-control address 4-5 */
#define MY_TCRRCR 0x18 /* receive & transmit configuration */
#define MY_BCR 0x1C /* bus command */
#define MY_TXPDR 0x20 /* transmit polling demand */
#define MY_RXPDR 0x24 /* receive polling demand */
#define MY_RXCWP 0x28 /* receive current word pointer */
#define MY_TXLBA 0x2C /* transmit list base address */
#define MY_RXLBA 0x30 /* receive list base address */
#define MY_ISR 0x34 /* interrupt status */
#define MY_IMR 0x38 /* interrupt mask */
#define MY_FTH 0x3C /* flow control high/low threshold */
#define MY_MANAGEMENT 0x40 /* bootrom/eeprom and mii management */
#define MY_TALLY 0x44 /* tally counters for crc and mpa */
#define MY_TSR 0x48 /* tally counter for transmit status */
#define MY_PHYBASE 0x4c
/*
* Receive Configuration Register
*/
#define MY_RXRUN 0x00008000 /* receive running status */
#define MY_EIEN 0x00004000 /* early interrupt enable */
#define MY_RFCEN 0x00002000 /* receive flow control packet enable */
#define MY_NDFA 0x00001000 /* not defined flow control address */
#define MY_RBLEN 0x00000800 /* receive burst length enable */
#define MY_RPBLE1 0x00000000 /* 1 word */
#define MY_RPBLE4 0x00000100 /* 4 words */
#define MY_RPBLE8 0x00000200 /* 8 words */
#define MY_RPBLE16 0x00000300 /* 16 words */
#define MY_RPBLE32 0x00000400 /* 32 words */
#define MY_RPBLE64 0x00000500 /* 64 words */
#define MY_RPBLE128 0x00000600 /* 128 words */
#define MY_RPBLE512 0x00000700 /* 512 words */
#define MY_PROM 0x000000080 /* promiscuous mode */
#define MY_AB 0x000000040 /* accept broadcast */
#define MY_AM 0x000000020 /* accept mutlicast */
#define MY_ARP 0x000000008 /* receive runt pkt */
#define MY_ALP 0x000000004 /* receive long pkt */
#define MY_SEP 0x000000002 /* receive error pkt */
#define MY_RE 0x000000001 /* receive enable */
/*
* Transmit Configuration Register
*/
#define MY_TXRUN 0x04000000 /* transmit running status */
#define MY_Enhanced 0x02000000 /* transmit enhanced mode */
#define MY_TFCEN 0x01000000 /* tx flow control packet enable */
#define MY_TFT64 0x00000000 /* 64 bytes */
#define MY_TFT32 0x00200000 /* 32 bytes */
#define MY_TFT128 0x00400000 /* 128 bytes */
#define MY_TFT256 0x00600000 /* 256 bytes */
#define MY_TFT512 0x00800000 /* 512 bytes */
#define MY_TFT768 0x00A00000 /* 768 bytes */
#define MY_TFT1024 0x00C00000 /* 1024 bytes */
#define MY_TFTSF 0x00E00000 /* store and forward */
#define MY_FD 0x00100000 /* full duplex mode */
#define MY_PS10 0x00080000 /* port speed is 10M */
#define MY_TE 0x00040000 /* transmit enable */
#define MY_PS1000 0x00010000 /* port speed is 1000M */
/*
* Bus Command Register
*/
#define MY_PROG 0x00000200 /* programming */
#define MY_RLE 0x00000100 /* read line command enable */
#define MY_RME 0x00000080 /* read multiple command enable */
#define MY_WIE 0x00000040 /* write and invalidate cmd enable */
#define MY_PBL1 0x00000000 /* 1 dword */
#define MY_PBL4 0x00000008 /* 4 dwords */
#define MY_PBL8 0x00000010 /* 8 dwords */
#define MY_PBL16 0x00000018 /* 16 dwords */
#define MY_PBL32 0x00000020 /* 32 dwords */
#define MY_PBL64 0x00000028 /* 64 dwords */
#define MY_PBL128 0x00000030 /* 128 dwords */
#define MY_PBL512 0x00000038 /* 512 dwords */
#define MY_ABR 0x00000004 /* arbitration rule */
#define MY_BLS 0x00000002 /* big/little endian select */
#define MY_SWR 0x00000001 /* software reset */
/*
* Transmit Poll Demand Register
*/
#define MY_TxPollDemand 0x1
/*
* Receive Poll Demand Register
*/
#define MY_RxPollDemand 0x01
/*
* Interrupt Status Register
*/
#define MY_RFCON 0x00020000 /* receive flow control xon packet */
#define MY_RFCOFF 0x00010000 /* receive flow control xoff packet */
#define MY_LSCStatus 0x00008000 /* link status change */
#define MY_ANCStatus 0x00004000 /* autonegotiation completed */
#define MY_FBE 0x00002000 /* fatal bus error */
#define MY_FBEMask 0x00001800
#define MY_ParityErr 0x00000000 /* parity error */
#define MY_MasterErr 0x00000800 /* master error */
#define MY_TargetErr 0x00001000 /* target abort */
#define MY_TUNF 0x00000400 /* transmit underflow */
#define MY_ROVF 0x00000200 /* receive overflow */
#define MY_ETI 0x00000100 /* transmit early int */
#define MY_ERI 0x00000080 /* receive early int */
#define MY_CNTOVF 0x00000040 /* counter overflow */
#define MY_RBU 0x00000020 /* receive buffer unavailable */
#define MY_TBU 0x00000010 /* transmit buffer unavilable */
#define MY_TI 0x00000008 /* transmit interrupt */
#define MY_RI 0x00000004 /* receive interrupt */
#define MY_RxErr 0x00000002 /* receive error */
/*
* Interrupt Mask Register
*/
#define MY_MRFCON 0x00020000 /* receive flow control xon packet */
#define MY_MRFCOFF 0x00010000 /* receive flow control xoff packet */
#define MY_MLSCStatus 0x00008000 /* link status change */
#define MY_MANCStatus 0x00004000 /* autonegotiation completed */
#define MY_MFBE 0x00002000 /* fatal bus error */
#define MY_MFBEMask 0x00001800
#define MY_MTUNF 0x00000400 /* transmit underflow */
#define MY_MROVF 0x00000200 /* receive overflow */
#define MY_METI 0x00000100 /* transmit early int */
#define MY_MERI 0x00000080 /* receive early int */
#define MY_MCNTOVF 0x00000040 /* counter overflow */
#define MY_MRBU 0x00000020 /* receive buffer unavailable */
#define MY_MTBU 0x00000010 /* transmit buffer unavilable */
#define MY_MTI 0x00000008 /* transmit interrupt */
#define MY_MRI 0x00000004 /* receive interrupt */
#define MY_MRxErr 0x00000002 /* receive error */
/* 90/1/18 delete */
/* #define MY_INTRS MY_FBE|MY_MRBU|MY_TBU|MY_MTI|MY_MRI|MY_METI */
#define MY_INTRS MY_MRBU|MY_TBU|MY_MTI|MY_MRI|MY_METI
/*
* Flow Control High/Low Threshold Register
*/
#define MY_FCHTShift 16 /* flow control high threshold */
#define MY_FCLTShift 0 /* flow control low threshold */
/*
* BootROM/EEPROM/MII Management Register
*/
#define MY_MASK_MIIR_MII_READ 0x00000000
#define MY_MASK_MIIR_MII_WRITE 0x00000008
#define MY_MASK_MIIR_MII_MDO 0x00000004
#define MY_MASK_MIIR_MII_MDI 0x00000002
#define MY_MASK_MIIR_MII_MDC 0x00000001
/*
* Tally Counter for CRC and MPA
*/
#define MY_TCOVF 0x80000000 /* crc tally counter overflow */
#define MY_CRCMask 0x7fff0000 /* crc number: bit 16-30 */
#define MY_CRCShift 16
#define MY_TMOVF 0x00008000 /* mpa tally counter overflow */
#define MY_MPAMask 0x00007fff /* mpa number: bit 0-14 */
#define MY_MPAShift 0
/*
* Tally Counters for transmit status
*/
#define MY_AbortMask 0xff000000 /* transmit abort number */
#define MY_AbortShift 24
#define MY_LColMask 0x00ff0000 /* transmit late collisions */
#define MY_LColShift 16
#define MY_NCRMask 0x0000ffff /* transmit retry number */
#define MY_NCRShift 0
/*
* Myson TX/RX descriptor structure.
*/
struct my_desc {
u_int32_t my_status;
u_int32_t my_ctl;
u_int32_t my_data;
u_int32_t my_next;
};
/*
* for tx/rx descriptors
*/
#define MY_OWNByNIC 0x80000000
#define MY_OWNByDriver 0x0
/*
* receive descriptor 0
*/
#define MY_RXOWN 0x80000000 /* own bit */
#define MY_FLNGMASK 0x0fff0000 /* frame length */
#define MY_FLNGShift 16
#define MY_MARSTATUS 0x00004000 /* multicast address received */
#define MY_BARSTATUS 0x00002000 /* broadcast address received */
#define MY_PHYSTATUS 0x00001000 /* physical address received */
#define MY_RXFSD 0x00000800 /* first descriptor */
#define MY_RXLSD 0x00000400 /* last descriptor */
#define MY_ES 0x00000080 /* error summary */
#define MY_RUNT 0x00000040 /* runt packet received */
#define MY_LONG 0x00000020 /* long packet received */
#define MY_FAE 0x00000010 /* frame align error */
#define MY_CRC 0x00000008 /* crc error */
#define MY_RXER 0x00000004 /* receive error */
#define MY_RDES0CHECK 0x000078fc /* only check MAR, BAR, PHY, ES, RUNT,
LONG, FAE, CRC and RXER bits */
/*
* receive descriptor 1
*/
#define MY_RXIC 0x00800000 /* interrupt control */
#define MY_RBSMASK 0x000007ff /* receive buffer size */
#define MY_RBSShift 0
/*
* transmit descriptor 0
*/
#define MY_TXERR 0x00008000 /* transmit error */
#define MY_JABTO 0x00004000 /* jabber timeout */
#define MY_CSL 0x00002000 /* carrier sense lost */
#define MY_LC 0x00001000 /* late collision */
#define MY_EC 0x00000800 /* excessive collision */
#define MY_UDF 0x00000400 /* fifo underflow */
#define MY_DFR 0x00000200 /* deferred */
#define MY_HF 0x00000100 /* heartbeat fail */
#define MY_NCRMASK 0x000000ff /* collision retry count */
#define MY_NCRShift 0
/*
* tx descriptor 1
*/
#define MY_TXIC 0x80000000 /* interrupt control */
#define MY_ETIControl 0x40000000 /* early transmit interrupt */
#define MY_TXLD 0x20000000 /* last descriptor */
#define MY_TXFD 0x10000000 /* first descriptor */
#define MY_CRCDisable 0x00000000 /* crc control */
#define MY_CRCEnable 0x08000000
#define MY_PADDisable 0x00000000 /* padding control */
#define MY_PADEnable 0x04000000
#define MY_RetryTxLC 0x02000000 /* retry late collision */
#define MY_PKTShift 11 /* transmit pkt size */
#define MY_TBSMASK 0x000007ff
#define MY_TBSShift 0 /* transmit buffer size */
#define MY_MAXFRAGS 1
#define MY_RX_LIST_CNT 64
#define MY_TX_LIST_CNT 64
#define MY_MIN_FRAMELEN 60
/*
* A transmit 'super descriptor' is actually MY_MAXFRAGS regular
* descriptors clumped together. The idea here is to emulate the
* multi-fragment descriptor layout found in devices such as the
* Texas Instruments ThunderLAN and 3Com boomerang and cylone chips.
* The advantage to using this scheme is that it avoids buffer copies.
* The disadvantage is that there's a certain amount of overhead due
* to the fact that each 'fragment' is 16 bytes long. In my tests,
* this limits top speed to about 10.5MB/sec. It should be more like
* 11.5MB/sec. However, the upshot is that you can achieve better
* results on slower machines: a Pentium 200 can pump out packets at
* same speed as a PII 400.
*/
struct my_txdesc {
struct my_desc my_frag[MY_MAXFRAGS];
};
#define MY_TXSTATUS(x) x->my_ptr->my_frag[x->my_lastdesc].my_status
#define MY_TXCTL(x) x->my_ptr->my_frag[x->my_lastdesc].my_ctl
#define MY_TXDATA(x) x->my_ptr->my_frag[x->my_lastdesc].my_data
#define MY_TXNEXT(x) x->my_ptr->my_frag[x->my_lastdesc].my_next
#define MY_TXOWN(x) x->my_ptr->my_frag[0].my_status
#define MY_UNSENT 0x1234
struct my_list_data {
struct my_desc my_rx_list[MY_RX_LIST_CNT];
struct my_txdesc my_tx_list[MY_TX_LIST_CNT];
};
struct my_chain {
struct my_txdesc *my_ptr;
struct mbuf *my_mbuf;
struct my_chain *my_nextdesc;
u_int8_t my_lastdesc;
};
struct my_chain_onefrag {
struct my_desc *my_ptr;
struct mbuf *my_mbuf;
struct my_chain_onefrag *my_nextdesc;
u_int8_t my_rlast;
};
struct my_chain_data {
struct my_chain_onefrag my_rx_chain[MY_RX_LIST_CNT];
struct my_chain my_tx_chain[MY_TX_LIST_CNT];
struct my_chain_onefrag *my_rx_head;
struct my_chain *my_tx_head;
struct my_chain *my_tx_tail;
struct my_chain *my_tx_free;
};
struct my_type {
u_int16_t my_vid;
u_int16_t my_did;
char *my_name;
};
#define MY_FLAG_FORCEDELAY 1
#define MY_FLAG_SCHEDDELAY 2
#define MY_FLAG_DELAYTIMEO 3
struct my_softc {
struct arpcom arpcom; /* interface info */
struct ifmedia ifmedia; /* media info */
bus_space_handle_t my_bhandle;
bus_space_tag_t my_btag;
struct my_type *my_info; /* adapter info */
struct my_type *my_pinfo; /* phy info */
struct resource *my_res;
struct resource *my_irq;
void *my_intrhand;
u_int8_t my_unit; /* interface number */
u_int8_t my_phy_addr; /* PHY address */
u_int8_t my_tx_pend; /* TX pending */
u_int8_t my_want_auto;
u_int8_t my_autoneg;
u_int16_t my_txthresh;
u_int8_t my_stats_no_timeout;
caddr_t my_ldata_ptr;
struct my_list_data *my_ldata;
struct my_chain_data my_cdata;
device_t my_miibus;
struct callout_handle my_stat_ch;
/* Add by Surfer 2001/12/2 */
struct mtx my_mtx;
};
/* Add by Surfer 2001/12/2 */
#define MY_LOCK(_sc) mtx_lock(&(_sc)->my_mtx)
#define MY_UNLOCK(_sc) mtx_unlock(&(_sc)->my_mtx)
/*
* register space access macros
*/
#define CSR_WRITE_4(sc, reg, val) \
bus_space_write_4(sc->my_btag, sc->my_bhandle, reg, val)
#define CSR_WRITE_2(sc, reg, val) \
bus_space_write_2(sc->my_btag, sc->my_bhandle, reg, val)
#define CSR_WRITE_1(sc, reg, val) \
bus_space_write_1(sc->my_btag, sc->my_bhandle, reg, val)
#define CSR_READ_4(sc, reg) \
bus_space_read_4(sc->my_btag, sc->my_bhandle, reg)
#define CSR_READ_2(sc, reg) \
bus_space_read_2(sc->my_btag, sc->my_bhandle, reg)
#define CSR_READ_1(sc, reg) \
bus_space_read_1(sc->my_btag, sc->my_bhandle, reg)
#define MY_TIMEOUT 1000
/*
* General constants that are fun to know.
*
* MYSON PCI vendor ID
*/
#define MYSONVENDORID 0x1516
/*
* MYSON device IDs.
*/
#define MTD800ID 0x0800
#define MTD803ID 0x0803
#define MTD891ID 0x0891
/*
* ST+OP+PHYAD+REGAD+TA
*/
#define MY_OP_READ 0x6000 /* ST:01+OP:10+PHYAD+REGAD+TA:Z0 */
#define MY_OP_WRITE 0x5002 /* ST:01+OP:01+PHYAD+REGAD+TA:10 */
/*
* Constansts for Myson PHY
*/
#define MysonPHYID0 0x0300
/*
* Constansts for Seeq 80225 PHY
*/
#define SeeqPHYID0 0x0016
#define SEEQ_MIIRegister18 18
#define SEEQ_SPD_DET_100 0x80
#define SEEQ_DPLX_DET_FULL 0x40
/*
* Constansts for Ahdoc 101 PHY
*/
#define AhdocPHYID0 0x0022
#define AHDOC_DiagnosticReg 18
#define AHDOC_DPLX_FULL 0x0800
#define AHDOC_Speed_100 0x0400
/*
* Constansts for Marvell 88E1000/88E1000S PHY and LevelOne PHY
*/
#define MarvellPHYID0 0x0141
#define LevelOnePHYID0 0x0013
#define Marvell_SpecificStatus 17
#define Marvell_Speed1000 0x8000
#define Marvell_Speed100 0x4000
#define Marvell_FullDuplex 0x2000
/*
* PCI low memory base and low I/O base register, and
* other PCI registers. Note: some are only available on
* the 3c905B, in particular those that related to power management.
*/
#define MY_PCI_VENDOR_ID 0x00
#define MY_PCI_DEVICE_ID 0x02
#define MY_PCI_COMMAND 0x04
#define MY_PCI_STATUS 0x06
#define MY_PCI_CLASSCODE 0x09
#define MY_PCI_LATENCY_TIMER 0x0D
#define MY_PCI_HEADER_TYPE 0x0E
#define MY_PCI_LOIO 0x10
#define MY_PCI_LOMEM 0x14
#define MY_PCI_BIOSROM 0x30
#define MY_PCI_INTLINE 0x3C
#define MY_PCI_INTPIN 0x3D
#define MY_PCI_MINGNT 0x3E
#define MY_PCI_MINLAT 0x0F
#define MY_PCI_RESETOPT 0x48
#define MY_PCI_EEPROM_DATA 0x4C
#define PHY_UNKNOWN 3
#define MY_PHYADDR_MIN 0x00
#define MY_PHYADDR_MAX 0x1F
#define PHY_BMCR 0x00
#define PHY_BMSR 0x01
#define PHY_VENID 0x02
#define PHY_DEVID 0x03
#define PHY_ANAR 0x04
#define PHY_LPAR 0x05
#define PHY_ANEXP 0x06
#define PHY_NPTR 0x07
#define PHY_LPNPR 0x08
#define PHY_1000CR 0x09
#define PHY_1000SR 0x0a
#define PHY_ANAR_NEXTPAGE 0x8000
#define PHY_ANAR_RSVD0 0x4000
#define PHY_ANAR_TLRFLT 0x2000
#define PHY_ANAR_RSVD1 0x1000
#define PHY_ANAR_RSVD2 0x0800
#define PHY_ANAR_RSVD3 0x0400
#define PHY_ANAR_100BT4 0x0200L
#define PHY_ANAR_100BTXFULL 0x0100
#define PHY_ANAR_100BTXHALF 0x0080
#define PHY_ANAR_10BTFULL 0x0040
#define PHY_ANAR_10BTHALF 0x0020
#define PHY_ANAR_PROTO4 0x0010
#define PHY_ANAR_PROTO3 0x0008
#define PHY_ANAR_PROTO2 0x0004
#define PHY_ANAR_PROTO1 0x0002
#define PHY_ANAR_PROTO0 0x0001
#define PHY_1000SR_1000BTXFULL 0x0800
#define PHY_1000SR_1000BTXHALF 0x0400
/*
* These are the register definitions for the PHY (physical layer
* interface chip).
*/
/*
* PHY BMCR Basic Mode Control Register
*/
#define PHY_BMCR_RESET 0x8000
#define PHY_BMCR_LOOPBK 0x4000
#define PHY_BMCR_SPEEDSEL 0x2000
#define PHY_BMCR_AUTONEGENBL 0x1000
#define PHY_BMCR_RSVD0 0x0800 /* write as zero */
#define PHY_BMCR_ISOLATE 0x0400
#define PHY_BMCR_AUTONEGRSTR 0x0200
#define PHY_BMCR_DUPLEX 0x0100
#define PHY_BMCR_COLLTEST 0x0080
#define PHY_BMCR_1000 0x0040 /* only used for Marvell PHY */
#define PHY_BMCR_RSVD2 0x0020 /* write as zero, don't care */
#define PHY_BMCR_RSVD3 0x0010 /* write as zero, don't care */
#define PHY_BMCR_RSVD4 0x0008 /* write as zero, don't care */
#define PHY_BMCR_RSVD5 0x0004 /* write as zero, don't care */
#define PHY_BMCR_RSVD6 0x0002 /* write as zero, don't care */
#define PHY_BMCR_RSVD7 0x0001 /* write as zero, don't care */
/*
* RESET: 1 == software reset, 0 == normal operation
* Resets status and control registers to default values.
* Relatches all hardware config values.
*
* LOOPBK: 1 == loopback operation enabled, 0 == normal operation
*
* SPEEDSEL: 1 == 100Mb/s, 0 == 10Mb/s
* Link speed is selected byt his bit or if auto-negotiation if bit
* 12 (AUTONEGENBL) is set (in which case the value of this register
* is ignored).
*
* AUTONEGENBL: 1 == Autonegotiation enabled, 0 == Autonegotiation disabled
* Bits 8 and 13 are ignored when autoneg is set, otherwise bits 8 and 13
* determine speed and mode. Should be cleared and then set if PHY configured
* for no autoneg on startup.
*
* ISOLATE: 1 == isolate PHY from MII, 0 == normal operation
*
* AUTONEGRSTR: 1 == restart autonegotiation, 0 = normal operation
*
* DUPLEX: 1 == full duplex mode, 0 == half duplex mode
*
* COLLTEST: 1 == collision test enabled, 0 == normal operation
*/
/*
* PHY, BMSR Basic Mode Status Register
*/
#define PHY_BMSR_100BT4 0x8000
#define PHY_BMSR_100BTXFULL 0x4000
#define PHY_BMSR_100BTXHALF 0x2000
#define PHY_BMSR_10BTFULL 0x1000
#define PHY_BMSR_10BTHALF 0x0800
#define PHY_BMSR_RSVD1 0x0400 /* write as zero, don't care */
#define PHY_BMSR_RSVD2 0x0200 /* write as zero, don't care */
#define PHY_BMSR_RSVD3 0x0100 /* write as zero, don't care */
#define PHY_BMSR_RSVD4 0x0080 /* write as zero, don't care */
#define PHY_BMSR_MFPRESUP 0x0040
#define PHY_BMSR_AUTONEGCOMP 0x0020
#define PHY_BMSR_REMFAULT 0x0010
#define PHY_BMSR_CANAUTONEG 0x0008
#define PHY_BMSR_LINKSTAT 0x0004
#define PHY_BMSR_JABBER 0x0002
#define PHY_BMSR_EXTENDED 0x0001