sysfei82557end.c

WINDRIVER SBC405 BSP

    )
    {
    FEI_RESOURCE *pReso;	/* resource ptr, initialized by sys557PciInit */
    UINT16 sum = 0;		/* checksum of eeprom on fei board */
    int ix;			/* general index */
    int iy;			/* general index */
    UINT16 value;		/* test return value */

    if (unit >= feiUnits)
        return (ERROR);

    /* figure out which fei resource we are working with */

    pReso = &feiResources [unit];

    /* set up the board */

    if ((pReso->boardType != TYPE_PRO100B_PCI) || (pReso->boardType != TYPE_PRO100S_PCI))   /* only setup once */
        {
        /* read the configuration in EEPROM */

        for (ix = 0; ix < EE_SIZE; ix++)
            {
            value = sys557eepromRead (unit, ix);
            pReso->eeprom[ix] = value;
            sum += value;
            }

	/*
	 * Verify checksum correct. This will fail if part is not correctly
	 * mapped and initialized as per sys557PciInit.
	 */

        if (sum != EE_CHECKSUM)
            printf ("i82557(%d): Invalid EEPROM checksum %#4.4x\n", unit, sum);

        /* DP83840-specific setup */

        if (((pReso->eeprom[6]>>8) & 0x3f) == DP83840)
            {
            int reg23 = sys557mdioRead (unit, pReso->eeprom[6] & 0x1f, 23);
            sys557mdioWrite (unit, pReso->eeprom[6] & 0x1f, 23, reg23 | 0x0420);
            }

        /* perform a system self-test */

        pReso->timeout     = 16000; /* Timeout for self-test */
        pReso->pResults    = (volatile int *) cacheDmaMalloc (sizeof(pReso->str));
        pReso->pResults[0] = 0;
        pReso->pResults[1] = -1;
        sysPciOutLong ((UINT32)PCI_MEMIO2LOCAL ((pReso->membaseCsr + SCB_PORT)),
                       (int)pReso->pResults | 1);

        do
	    {
            sysDelay ();        /* delay for one IO READ cycle */
            }
	while ((pReso->pResults[1] == -1) && (--pReso->timeout >= 0));

		if (pReso->pciDevice == PRO100B_PCI_DEVICE_ID)
		    pReso->boardType = TYPE_PRO100B_PCI;
		else
		    pReso->boardType = TYPE_PRO100S_PCI;
        }

    /* complete initialization of the board information structure */

    pBoard->vector   = pReso->irq;
    pBoard->baseAddr = pReso->membaseCsr;

    for (ix = 0, iy = 0; ix < 3; ix++)
        {
        pBoard->enetAddr[iy++] = pReso->eeprom[ix] & 0xff;
        pBoard->enetAddr[iy++] = (pReso->eeprom[ix] >> 8) & 0xff;
        }

    pBoard->intEnable     = sys557IntEnable;
    pBoard->intDisable    = sys557IntDisable;
    pBoard->intAck        = sys557IntAck;
    pBoard->sysLocalToBus = sys557LocalToPciBusAdrs;
    pBoard->sysBusToLocal = sys557PciBusToLocalAdrs;

#ifdef FEI_10MB
    pBoard->phySpeed      = NULL;
    pBoard->phyDpx        = NULL;
#endif

    return (OK);
    }

/**************************************************************************
*
* sys557IntEnable - enable 82557 interrupts
*
* This routine enables 8255x interrupts.  This may involve operations on
* interrupt control hardware.
*
* RETURNS: OK or ERROR for invalid arguments.
*/

LOCAL STATUS sys557IntEnable (int unit   /* unit number */)
    {
    FEI_RESOURCE *pReso = &feiResources [unit];

    return (intEnable (pReso->irq)); 
    }

/**************************************************************************
*
* sys557IntDisable - disable 82557 interrupts
*
* This routine disables 8255x interrupts.  This may involve operations on
* interrupt control hardware.
*
* RETURNS: OK or ERROR for invalid arguments.
*/

LOCAL STATUS sys557IntDisable ( int unit   /* unit number */)
    {
    FEI_RESOURCE *pReso = &feiResources [unit];

    return (intDisable (pReso->irq)); 
    }

/**************************************************************************
*
* sys557IntAck - acknowledge an 82557 interrupt
*
* This routine performs any 82557 interrupt acknowledge that may be
* required.  This typically involves an operation to some interrupt
* control hardware.
*
* This routine gets called from the 82557 driver's interrupt handler.
*
* This routine assumes that the PCI configuration information has already
* been setup.
*
* RETURNS: OK, or ERROR if the interrupt could not be acknowledged.
*/

LOCAL STATUS sys557IntAck
    (
    int unit            /* unit number */
    )
    {
    FEI_RESOURCE *pReso = &feiResources [unit];

    switch (pReso->boardType)
        {
        case TYPE_PRO100B_PCI: /* handle PRO100B LAN Adapter */
	case TYPE_PRO100S_PCI: /* handle PRO100S LAN Adapter */
            break;             /* no addition work necessary for the PRO100B/PRO100S */
        default:
            return (ERROR);
        }

    return (OK);
    }

/**************************************************************************
*
* sys557eepromRead - read a word from the 82557 EEPROM
*
* This routine read a word from the 82557 EEPROM
*
* RETURNS: the EEPROM data word read in.
*/

LOCAL UINT16 sys557eepromRead
    (
    int unit,           /* unit number */
    int location        /* address of word to be read */
    )
    {
    UINT32 membase = (UINT32)PCI_MEMIO2LOCAL (feiResources[unit].membaseCsr);
    UINT32 retval = 0;
    UINT32 dataval;
    volatile UINT32 dummy;
    int ix;

    sysPciOutWord (membase + SCB_EEPROM, EE_CS);    /* enable EEPROM */

    /* write the READ opcode */

    for (ix = EE_CMD_BITS - 1; ix >= 0; ix--)
        {
        dataval = (EE_CMD_READ & (1 << ix)) ? EE_DI : 0;

        sysPciOutWord (membase + SCB_EEPROM, EE_CS | dataval);

        sysDelay ();    /* delay for one IO READ cycle */

        sysPciOutWord (membase + SCB_EEPROM, EE_CS | dataval | EE_SK);

        sysDelay ();    /* delay for one IO READ cycle */
        }

    /* write the location */

    for (ix = EE_ADDR_BITS - 1; ix >= 0; ix--)
        {
        dataval = (location & (1 << ix)) ? EE_DI : 0;
        sysPciOutWord (membase + SCB_EEPROM, EE_CS | dataval);
        sysDelay ();    /* delay for one IO READ cycle */
        sysPciOutWord (membase + SCB_EEPROM, EE_CS | dataval | EE_SK);
        sysDelay ();    /* delay for one IO READ cycle */
        sysPciOutWord (membase + SCB_EEPROM, EE_CS | dataval);
        sysDelay ();    /* delay for one IO READ cycle */
        dummy = sysPciInWord (membase + SCB_EEPROM);
        }

    if ((dummy & EE_DO) == 0)           /* dummy read */
        ;

    /* read the data */

    for (ix = EE_DATA_BITS - 1; ix >= 0; ix--)
        {
        sysPciOutWord (membase + SCB_EEPROM, EE_CS | EE_SK);

        sysDelay ();    /* delay for one IO READ cycle */

        retval = (retval << 1) |
                 ((sysPciInWord (membase + SCB_EEPROM) & EE_DO) ? 1 : 0);

        sysPciOutWord (membase + SCB_EEPROM, EE_CS);

        sysDelay ();    /* delay for one IO READ cycle */
        }

    sysPciOutWord (membase + SCB_EEPROM, 0x00);     /* disable EEPROM */

    return (retval);
    }

/**************************************************************************
*
* sys557mdioRead - read MDIO
*
* This routine read from the MDIO.
*
* RETURNS: read value
*/

LOCAL UINT16 sys557mdioRead
    (
    int unit,           /* unit number */
    int phyId,          /* PHY ID */
    int location        /* location to read */
    )
    {
    UINT32 membase = (UINT32)PCI_MEMIO2LOCAL((feiResources[unit].membaseCsr));
    int timeout   = 64*4;       /* <64 usec. to complete, typ 27 ticks */
    int val;

    sysPciOutLong (membase + SCB_MDI, 0x08000000 | (location<<16) | (phyId<<21));

    do {
        sysDelay ();    /* delay for one IO READ cycle */
        val = sysPciInLong (membase + SCB_MDI);
        if (--timeout < 0)
            printf ("sys557mdioRead() timed out with val = %8.8x.\n", val);
        } while (! (val & 0x10000000));

    return (val & 0xffff);
    }

/**************************************************************************
*
* sys557mdioWrite - write MDIO
*
* This routine wrtie to the MDIO.
*
* RETURNS: write value
*/

LOCAL UINT16 sys557mdioWrite
    (
    int unit,           /* unit number */
    int phyId,          /* PHY ID */
    int location,       /* location to write */
    int value           /* value to write */
    )
    {
    UINT32 membase = (UINT32)PCI_MEMIO2LOCAL((feiResources[unit].membaseCsr));
    int timeout   = 64*4;       /* <64 usec. to complete, typ 27 ticks */
    int val;

    sysPciOutLong (membase + SCB_MDI,
                0x04000000 | (location<<16) | (phyId<<21) | value);
    do {
        sysDelay ();    /* delay for one IO READ cycle */
        val = sysPciInLong (membase + SCB_MDI);
        if (--timeout < 0)
            printf ("sys557mdioWrite() timed out with val = %8.8x.\n", val);
        } while (! (val & 0x10000000));

    return (val & 0xffff);
    }

/**************************************************************************
*
* sys557LocalToPciBusAdrs - convert a local address to a bus address
*
* This routine returns a PCIbus address for the LOCAL bus address.
*
* RETURNS: bus address
*/

LOCAL UINT32 sys557LocalToPciBusAdrs
    (
    int		unit,
    UINT32      adrs    /* Local Address */
    )
    {
    adrs = LOCAL2PCI_MEMIO (adrs);
    return (adrs);
    }

/**************************************************************************
*
* sys557PciBusToLocalAdrs - convert a bus address to a local address
*
* This routine returns a local address that is used to access the PCIbus.
* The bus address that is passed into this routine is the PCIbus address
* as it would be seen on the local bus.
*
* RETURNS: local address
*/

LOCAL UINT32 sys557PciBusToLocalAdrs
    (
    int		unit,
    UINT32      adrs    /* PCI Address */
    )
    {
    adrs = (UINT32)PCI_MEMIO2LOCAL(adrs);
    return (adrs);
    }

#endif /* defined (INCLUDE_FEI82557END) && defined (INCLUDE_NETWORK) */