sunhme.h

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#define BIGMAC_XCFG_XLBACK    0x00000002 /* Loopback-mode XIF enable     */
#define BIGMAC_XCFG_MLBACK    0x00000004 /* Loopback-mode MII enable     */
#define BIGMAC_XCFG_MIIDISAB  0x00000008 /* MII receive buffer disable   */
#define BIGMAC_XCFG_SQENABLE  0x00000010 /* SQE test enable              */
#define BIGMAC_XCFG_SQETWIN   0x000003e0 /* SQE time window              */
#define BIGMAC_XCFG_LANCE     0x00000010 /* Lance mode enable            */
#define BIGMAC_XCFG_LIPG0     0x000003e0 /* Lance mode IPG0              */

/* BigMac transmit config register. */
#define BIGMAC_TXCFG_ENABLE   0x00000001 /* Enable the transmitter       */
#define BIGMAC_TXCFG_SMODE    0x00000020 /* Enable slow transmit mode    */
#define BIGMAC_TXCFG_CIGN     0x00000040 /* Ignore transmit collisions   */
#define BIGMAC_TXCFG_FCSOFF   0x00000080 /* Do not emit FCS              */
#define BIGMAC_TXCFG_DBACKOFF 0x00000100 /* Disable backoff              */
#define BIGMAC_TXCFG_FULLDPLX 0x00000200 /* Enable full-duplex           */
#define BIGMAC_TXCFG_DGIVEUP  0x00000400 /* Don't give up on transmits   */

/* BigMac receive config register. */
#define BIGMAC_RXCFG_ENABLE   0x00000001 /* Enable the receiver             */
#define BIGMAC_RXCFG_PSTRIP   0x00000020 /* Pad byte strip enable           */
#define BIGMAC_RXCFG_PMISC    0x00000040 /* Enable promiscous mode          */
#define BIGMAC_RXCFG_DERR     0x00000080 /* Disable error checking          */
#define BIGMAC_RXCFG_DCRCS    0x00000100 /* Disable CRC stripping           */
#define BIGMAC_RXCFG_ME       0x00000200 /* Receive packets addressed to me */
#define BIGMAC_RXCFG_PGRP     0x00000400 /* Enable promisc group mode       */
#define BIGMAC_RXCFG_HENABLE  0x00000800 /* Enable the hash filter          */
#define BIGMAC_RXCFG_AENABLE  0x00001000 /* Enable the address filter       */

/* These are the "Management Interface" (ie. MIF) registers of the transceiver. */
#define TCVR_BBCLOCK	0x00UL	/* Bit bang clock register          */
#define TCVR_BBDATA	0x04UL	/* Bit bang data register           */
#define TCVR_BBOENAB	0x08UL	/* Bit bang output enable           */
#define TCVR_FRAME	0x0cUL	/* Frame control/data register      */
#define TCVR_CFG	0x10UL	/* MIF config register              */
#define TCVR_IMASK	0x14UL	/* MIF interrupt mask               */
#define TCVR_STATUS	0x18UL	/* MIF status                       */
#define TCVR_SMACHINE	0x1cUL	/* MIF state machine                */
#define TCVR_REG_SIZE	0x20UL

/* Frame commands. */
#define FRAME_WRITE           0x50020000
#define FRAME_READ            0x60020000

/* Transceiver config register */
#define TCV_CFG_PSELECT       0x00000001 /* Select PHY                      */
#define TCV_CFG_PENABLE       0x00000002 /* Enable MIF polling              */
#define TCV_CFG_BENABLE       0x00000004 /* Enable the "bit banger" oh baby */
#define TCV_CFG_PREGADDR      0x000000f8 /* Address of poll register        */
#define TCV_CFG_MDIO0         0x00000100 /* MDIO zero, data/attached        */
#define TCV_CFG_MDIO1         0x00000200 /* MDIO one,  data/attached        */
#define TCV_CFG_PDADDR        0x00007c00 /* Device PHY address polling      */

/* Here are some PHY addresses. */
#define TCV_PADDR_ETX         0          /* Internal transceiver            */
#define TCV_PADDR_ITX         1          /* External transceiver            */

/* Transceiver status register */
#define TCV_STAT_BASIC        0xffff0000 /* The "basic" part                */
#define TCV_STAT_NORMAL       0x0000ffff /* The "non-basic" part            */

/* Inside the Happy Meal transceiver is the physical layer, they use an
 * implementations for National Semiconductor, part number DP83840VCE.
 * You can retrieve the data sheets and programming docs for this beast
 * from http://www.national.com/
 *
 * The DP83840 is capable of both 10 and 100Mbps ethernet, in both
 * half and full duplex mode.  It also supports auto negotiation.
 *
 * But.... THIS THING IS A PAIN IN THE ASS TO PROGRAM!
 * Debugging eeprom burnt code is more fun than programming this chip!
 */

/* First, the DP83840 register numbers. */
#define DP83840_BMCR            0x00        /* Basic mode control register */
#define DP83840_BMSR            0x01        /* Basic mode status register  */
#define DP83840_PHYSID1         0x02        /* PHYS ID 1                   */
#define DP83840_PHYSID2         0x03        /* PHYS ID 2                   */
#define DP83840_ADVERTISE       0x04        /* Advertisement control reg   */
#define DP83840_LPA             0x05        /* Link partner ability reg    */
#define DP83840_EXPANSION       0x06        /* Expansion register          */
#define DP83840_DCOUNTER        0x12        /* Disconnect counter          */
#define DP83840_FCSCOUNTER      0x13        /* False carrier counter       */
#define DP83840_NWAYTEST        0x14        /* N-way auto-neg test reg     */
#define DP83840_RERRCOUNTER     0x15        /* Receive error counter       */
#define DP83840_SREVISION       0x16        /* Silicon revision            */
#define DP83840_CSCONFIG        0x17        /* CS configuration            */
#define DP83840_LBRERROR        0x18        /* Lpback, rx, bypass error    */
#define DP83840_PHYADDR         0x19        /* PHY address                 */
#define DP83840_RESERVED        0x1a        /* Unused...                   */
#define DP83840_TPISTATUS       0x1b        /* TPI status for 10mbps       */
#define DP83840_NCONFIG         0x1c        /* Network interface config    */

/* Basic mode control register. */
#define BMCR_RESV               0x007f  /* Unused...                   */
#define BMCR_CTST               0x0080  /* Collision test              */
#define BMCR_FULLDPLX           0x0100  /* Full duplex                 */
#define BMCR_ANRESTART          0x0200  /* Auto negotiation restart    */
#define BMCR_ISOLATE            0x0400  /* Disconnect DP83840 from MII */
#define BMCR_PDOWN              0x0800  /* Powerdown the DP83840       */
#define BMCR_ANENABLE           0x1000  /* Enable auto negotiation     */
#define BMCR_SPEED100           0x2000  /* Select 100Mbps              */
#define BMCR_LOOPBACK           0x4000  /* TXD loopback bits           */
#define BMCR_RESET              0x8000  /* Reset the DP83840           */

/* Basic mode status register. */
#define BMSR_ERCAP              0x0001  /* Ext-reg capability          */
#define BMSR_JCD                0x0002  /* Jabber detected             */
#define BMSR_LSTATUS            0x0004  /* Link status                 */
#define BMSR_ANEGCAPABLE        0x0008  /* Able to do auto-negotiation */
#define BMSR_RFAULT             0x0010  /* Remote fault detected       */
#define BMSR_ANEGCOMPLETE       0x0020  /* Auto-negotiation complete   */
#define BMSR_RESV               0x07c0  /* Unused...                   */
#define BMSR_10HALF             0x0800  /* Can do 10mbps, half-duplex  */
#define BMSR_10FULL             0x1000  /* Can do 10mbps, full-duplex  */
#define BMSR_100HALF            0x2000  /* Can do 100mbps, half-duplex */
#define BMSR_100FULL            0x4000  /* Can do 100mbps, full-duplex */
#define BMSR_100BASE4           0x8000  /* Can do 100mbps, 4k packets  */

/* Advertisement control register. */
#define ADVERTISE_SLCT          0x001f  /* Selector bits               */
#define ADVERTISE_CSMA          0x0001  /* Only selector supported     */
#define ADVERTISE_10HALF        0x0020  /* Try for 10mbps half-duplex  */
#define ADVERTISE_10FULL        0x0040  /* Try for 10mbps full-duplex  */
#define ADVERTISE_100HALF       0x0080  /* Try for 100mbps half-duplex */
#define ADVERTISE_100FULL       0x0100  /* Try for 100mbps full-duplex */
#define ADVERTISE_100BASE4      0x0200  /* Try for 100mbps 4k packets  */
#define ADVERTISE_RESV          0x1c00  /* Unused...                   */
#define ADVERTISE_RFAULT        0x2000  /* Say we can detect faults    */
#define ADVERTISE_LPACK         0x4000  /* Ack link partners response  */
#define ADVERTISE_NPAGE         0x8000  /* Next page bit               */

#define ADVERTISE_ALL (ADVERTISE_10HALF | ADVERTISE_10FULL | \
                       ADVERTISE_100HALF | ADVERTISE_100FULL)

/* Link partner ability register. */
#define LPA_SLCT                0x001f  /* Same as advertise selector  */
#define LPA_10HALF              0x0020  /* Can do 10mbps half-duplex   */
#define LPA_10FULL              0x0040  /* Can do 10mbps full-duplex   */
#define LPA_100HALF             0x0080  /* Can do 100mbps half-duplex  */
#define LPA_100FULL             0x0100  /* Can do 100mbps full-duplex  */
#define LPA_100BASE4            0x0200  /* Can do 100mbps 4k packets   */
#define LPA_RESV                0x1c00  /* Unused...                   */
#define LPA_RFAULT              0x2000  /* Link partner faulted        */
#define LPA_LPACK               0x4000  /* Link partner acked us       */
#define LPA_NPAGE               0x8000  /* Next page bit               */

/* Expansion register for auto-negotiation. */
#define EXPANSION_NWAY          0x0001  /* Can do N-way auto-nego      */
#define EXPANSION_LCWP          0x0002  /* Got new RX page code word   */
#define EXPANSION_ENABLENPAGE   0x0004  /* This enables npage words    */
#define EXPANSION_NPCAPABLE     0x0008  /* Link partner supports npage */
#define EXPANSION_MFAULTS       0x0010  /* Multiple faults detected    */
#define EXPANSION_RESV          0xffe0  /* Unused...                   */

/* N-way test register. */
#define NWAYTEST_RESV1          0x00ff  /* Unused...                   */
#define NWAYTEST_LOOPBACK       0x0100  /* Enable loopback for N-way   */
#define NWAYTEST_RESV2          0xfe00  /* Unused...                   */

/* The Carrier Sense config register. */
#define CSCONFIG_RESV1          0x0001  /* Unused...                   */
#define CSCONFIG_LED4           0x0002  /* Pin for full-dplx LED4      */
#define CSCONFIG_LED1           0x0004  /* Pin for conn-status LED1    */
#define CSCONFIG_RESV2          0x0008  /* Unused...                   */
#define CSCONFIG_TCVDISAB       0x0010  /* Turns off the transceiver   */
#define CSCONFIG_DFBYPASS       0x0020  /* Bypass disconnect function  */
#define CSCONFIG_GLFORCE        0x0040  /* Good link force for 100mbps */
#define CSCONFIG_CLKTRISTATE    0x0080  /* Tristate 25m clock          */
#define CSCONFIG_RESV3          0x0700  /* Unused...                   */
#define CSCONFIG_ENCODE         0x0800  /* 1=MLT-3, 0=binary           */
#define CSCONFIG_RENABLE        0x1000  /* Repeater mode enable        */
#define CSCONFIG_TCDISABLE      0x2000  /* Disable timeout counter     */
#define CSCONFIG_RESV4          0x4000  /* Unused...                   */
#define CSCONFIG_NDISABLE       0x8000  /* Disable NRZI                */

/* Loopback, receive, bypass error register. */
#define LBRERROR_EBUFFER        0x0001  /* Show elasticity buf errors  */
#define LBRERROR_PACKET         0x0002  /* Show packet errors          */
#define LBRERROR_LINK           0x0004  /* Show link errors            */
#define LBRERROR_END            0x0008  /* Show premature end errors   */
#define LBRERROR_CODE           0x0010  /* Show code errors            */
#define LBRERROR_RESV1          0x00e0  /* Unused...                   */
#define LBRERROR_LBACK          0x0300  /* Remote and twister loopback */
#define LBRERROR_10TX           0x0400  /* Transceiver loopback 10mbps */
#define LBRERROR_ENDEC          0x0800  /* ENDEC loopback 10mbps       */
#define LBRERROR_ALIGN          0x1000  /* Bypass symbol alignment     */
#define LBRERROR_SCRAMBLER      0x2000  /* Bypass (de)scrambler        */
#define LBRERROR_ENCODER        0x4000  /* Bypass 4B5B/5B4B encoders   */
#define LBRERROR_BEBUF          0x8000  /* Bypass elasticity buffers   */

/* Physical address register. */
#define PHYADDR_ADDRESS         0x001f  /* The address itself          */
#define PHYADDR_DISCONNECT      0x0020  /* Disconnect status           */
#define PHYADDR_10MBPS          0x0040  /* 1=10mbps, 0=100mbps         */
#define PHYADDR_RESV            0xff80  /* Unused...                   */

/* TPI status register for 10mbps. */
#define TPISTATUS_RESV1         0x01ff  /* Unused...                   */
#define TPISTATUS_SERIAL        0x0200  /* Enable 10mbps serial mode   */
#define TPISTATUS_RESV2         0xfc00  /* Unused...                   */

/* Network interface config register. */
#define NCONFIG_JENABLE         0x0001  /* Jabber enable               */
#define NCONFIG_RESV1           0x0002  /* Unused...                   */
#define NCONFIG_SQUELCH         0x0004  /* Use low squelch             */