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#ifndef CYGONCE_PLF_IO_H

#define CYGONCE_PLF_IO_H

//=============================================================================

//

//      plf_io.h

//

//      Platform specific IO support

//

//=============================================================================

//####ECOSGPLCOPYRIGHTBEGIN####

// -------------------------------------------

// This file is part of eCos, the Embedded Configurable Operating System.

// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.

//

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// 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

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// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.

//

// As a special exception, if other files instantiate templates or use macros

// or inline functions from this file, or you compile this file and link it

// with other works to produce a work based on this file, this file does not

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//####ECOSGPLCOPYRIGHTEND####

//=============================================================================

//#####DESCRIPTIONBEGIN####

//

// Author(s):    msalter

// Contributors: msalter

// Date:         2002-01-10

// Purpose:      Intel IQ80321 PCI IO support macros

// Description: 

// Usage:        #include <cyg/hal/plf_io.h>

//

//####DESCRIPTIONEND####

//

//=============================================================================

#include <pkgconf/hal.h>

#include <cyg/hal/hal_io.h>             // IO macros

#include <cyg/hal/iq80321.h>

#include CYGBLD_HAL_PLF_INTS_H

// Initialize the PCI bus.

externC void cyg_hal_plf_pci_init(void);

#define HAL_PCI_INIT() cyg_hal_plf_pci_init()

//-----------------------------------------------------------------------------

// Resources

#define _PCI_MEM_BASE       0x80000000

#define _PCI_MEM_DAC_BASE   0x00000000

#define _PCI_IO_BASE        0x90000000

#define _PCI_MEM_LIMIT      0x83ffffff

#define _PCI_IO_LIMIT       0x9000ffff

extern cyg_uint32 hal_pci_alloc_base_memory;

extern cyg_uint32 hal_pci_alloc_base_io;

extern cyg_uint32 hal_pci_physical_memory_base;

extern cyg_uint32 hal_pci_physical_io_base;

extern cyg_uint32 hal_pci_inbound_window_base;

extern cyg_uint32 hal_pci_inbound_window_mask;

#define HAL_PCI_PHYSICAL_MEMORY_BASE hal_pci_physical_memory_base

#define HAL_PCI_PHYSICAL_IO_BASE     hal_pci_physical_io_base

// Map PCI device resources starting from these addresses in PCI space.

#define HAL_PCI_ALLOC_BASE_MEMORY hal_pci_alloc_base_memory

#define HAL_PCI_ALLOC_BASE_IO     hal_pci_alloc_base_io

#ifdef CYGSEM_HAL_ARM_IQ80321_FAB_C

#define __INTA_ROUTING CYGNUM_HAL_INTERRUPT_XINT0

#define __INTB_ROUTING CYGNUM_HAL_INTERRUPT_XINT1

#define __NIC_PUB  3

#define __NIC_PRIV 5

#define __SLOT_PUB  4

#define __SLOT_PRIV 6

#else

#define __INTA_ROUTING CYGNUM_HAL_INTERRUPT_XINT2

#define __INTB_ROUTING CYGNUM_HAL_INTERRUPT_XINT3

#define __NIC_PUB  8

#define __NIC_PRIV 4

#define __SLOT_PUB  2

#define __SLOT_PRIV 6

#endif

// Translate the PCI interrupt requested by the device (INTA#, INTB#,

// INTC# or INTD#) to the associated CPU interrupt (i.e., HAL vector).

#define HAL_PCI_TRANSLATE_INTERRUPT( __bus, __devfn, __vec, __valid)           \

    CYG_MACRO_START                                                            \

    cyg_uint32 __dev = CYG_PCI_DEV_GET_DEV(__devfn);                           \

    cyg_uint32 __fn  = CYG_PCI_DEV_GET_FN(__devfn);                            \

    cyg_uint32 __xbus = ((*ATU_PCIXSR >> 8) & 0xff);                           \

    if (__xbus == 0xff) __xbus = 0;                                            \

    __valid = false;                                                           \

    if (__fn==0 && (__dev==__NIC_PUB || __dev==__NIC_PRIV) && __bus==__xbus) { \

        __vec = CYGNUM_HAL_INTERRUPT_ETHERNET;                                 \

        __valid = true;                                                        \

    } else {                                                                   \

        cyg_uint8 __req;                                                       \

        HAL_PCI_CFG_READ_UINT8(__bus, __devfn, CYG_PCI_CFG_INT_PIN, __req);    \

        switch(__req) {                                                        \

          case 1: /* INTA */                                                   \

            __vec=CYGNUM_HAL_INTERRUPT_XINT0; __valid=true; break;             \

          case 2: /* INTB */                                                   \

            __vec=CYGNUM_HAL_INTERRUPT_XINT1; __valid=true; break;             \

        }                                                                      \

    }                                                                          \

    CYG_MACRO_END

// SDRAM is aliased as uncached memory for drivers.

#ifdef CYG_HAL_MEMORY_MAP_NORMAL

#define CYGARC_UNCACHED_ADDRESS(_x_) \

  (((((unsigned long)(_x_)) >> 29)==0x0) ? (((unsigned long)(_x_))|0xC0000000) : (_x_))

#else

#define CYGARC_UNCACHED_ADDRESS(_x_) \

  (((((unsigned long)(_x_)) >> 29)==0x5) ? (((unsigned long)(_x_))+0x20000000) : (_x_))

#endif

#define CYGARC_VIRT_TO_BUS(_x_) \

  (((unsigned long)(_x_) & 0x1fffffff) | hal_pci_inbound_window_base)

#define CYGARC_BUS_TO_VIRT(_x_) \

  (((unsigned long)(_x_) & hal_pci_inbound_window_mask) | 0xC0000000)

static inline unsigned cygarc_physical_address(unsigned va)

{

    unsigned *ram_mmutab = (unsigned *)(SDRAM_BASE | 0x4000);

    unsigned pte;

    pte = ram_mmutab[va >> 20];

    return (pte & 0xfff00000) | (va & 0xfffff);

}

#define CYGARC_PHYSICAL_ADDRESS(_x_) cygarc_physical_address(_x_)

#ifdef CYG_HAL_MEMORY_MAP_NORMAL

static inline unsigned cygarc_virtual_address(unsigned pa)

{

    if (0xa0000000 <= pa && pa < 0xc0000000)

        return pa - 0xa0000000;

    if (pa < 0x90100000)

        return pa + 0x20000000;

    return pa;

}

#define CYGARC_VIRTUAL_ADDRESS(_x_) cygarc_virtual_address(_x_)

#else

#define CYGARC_VIRTUAL_ADDRESS(_x_) (_x_)

#endif    

//-----------------------------------------------------------------------------

// end of plf_io.h

#endif // CYGONCE_PLF_IO_H