/* pciCfgStub.c - pcPentium BSP stub for PCI configuration *//* Copyright 2001, Wind River Systems, Inc. *//*modification history--------------------01c,23oct01,pai  Added prototype for pciConfigLibInit().  Added 24-bit                 ethernet controller class code and PCI_BOARD_RESOURCE                 definition.  Added PCI to local-host conversion macros.01b,07sep00,dat  fix to generic stub file01a,06aug00,dat  written*//*These macros customize the module pciConfigLib for the generic pc BSP.They are all set to their nominal default values.  For a specific PCplatform it may be necessary to modify these values.  Be sure to modifythem in the BSP specific stub file and not the global stub file in target/config/comps/src.Note: we assume here that system I/O addresses and PCI IO addresses map one toone with each other.*//* defines *//* Macros used to access PCI config space registers */#undef POPEYE#undef  PCI_OUT_BYTE#define PCI_OUT_BYTE(addr, data) \	sysOutByte (addr, data)#undef  PCI_OUT_WORD#define PCI_OUT_WORD(addr, data) \	sysOutWord (addr, data)#undef  PCI_OUT_LONG#define PCI_OUT_LONG(addr, data) \	sysOutLong (addr, data)#undef  PCI_IN_BYTE#define PCI_IN_BYTE(addr) \	sysInByte (addr)#undef  PCI_IN_WORD#define PCI_IN_WORD(addr) \	sysInWord (addr)#undef  PCI_IN_LONG#define PCI_IN_LONG(addr) \	sysInLong (addr)/* Offsets of PCI resources in host address space */ #define CPU_PCI_IO_ADRS      (0)     /* PCI IO base address */#define CPU_PCI_MEM_ADRS     (0)     /* PCI memory base address */#define PCI2DRAM_BASE_ADRS   (0)     /* DRAM base address from PCI */#define CPU_PCI_ISA_IO_ADRS  (0)     /* ISA IO space */ #define PCI_DEV_MMU_MSK      (~(VM_PAGE_SIZE - 1))  /* MMU page mask */#define PCI_DEV_ADRS_SIZE    (VM_PAGE_SIZE)         /* size of one page *//* PCI (non-prefetchable) memory address to CPU address */#define PCI_MEMIO2LOCAL(x)   ((x) + CPU_PCI_MEM_ADRS)/* PCI IO memory address to CPU address */#define PCI_IO2LOCAL(x)      ((x) + CPU_PCI_IO_ADRS)/* 24-bit PCI network class ethernet subclass and prog. I/F code */#define PCI_NET_ETHERNET_CLASS \    ((PCI_CLASS_NETWORK_CTLR << 16) | (PCI_SUBCLASS_NET_ETHERNET << 8))#define BOARD_TYPE_UNKNOWN   (-1)    /* unknown or unsupported board type *//* typedefs */typedef struct pciBoardResource      /* PCI_BOARD_RESOURCE */    {    UINT32        pciBus;            /* PCI Bus number */    UINT32        pciDevice;         /* PCI Device number */    UINT32        pciFunc;           /* PCI Function number */    UINT32        vendorID;          /* PCI Vendor ID */    UINT32        deviceID;          /* PCI Device ID */    UINT8         revisionID;        /* PCI Revision ID */    UINT32        boardType;         /* BSP-specific board type ID */    UINT8         irq;               /* Interrupt Request Level */    UINT32        irqvec;            /* Interrupt Request vector */    UINT32        bar [6];           /* PCI Base Address Registers */    void * const  pExtended;         /* pointer to extended device info */    } PCI_BOARD_RESOURCE;/* imports */IMPORT STATUS pciConfigLibInit (int, ULONG, ULONG, ULONG);IMPORT int    ffsLsb (UINT32 i);/***************************************************************************** sysPciCfgInit - pci configuration and initialization** Modify this routine as needed for special host bridge initialization if* needed.  This is the first access to PCI in a normal system.** RETURNS: N/A*/VOID sysPciCfgInit    (    int	   mechanism,	/* mechanism 1 or 2 */    UINT32 addr1,	/* address 1 */    UINT32 addr2,	/* address 2 */    UINT32 addr3	/* address 3 */    )    {    /*     * TODO: Any special host bridge initialization should be done here. Or     * it can be in a separate component, if it is done before     * INCLUDE_PCI_CFG_LIB     */    /* Initialize PCI driver library. */    if (pciConfigLibInit (mechanism, addr1, addr2, addr3) != OK)        {	sprintf (sysExcMsg, "pciCfgStub.c: PCI configuration failure\n");        sysToMonitor (BOOT_NO_AUTOBOOT);        }    }