include/asm-m68knommu/mcfpci.h

   1 /****************************************************************************/
   2
   3 /*
   4  *      mcfpci.h -- PCI bridge on ColdFire eval boards.
   5  *
   6  *      (C) Copyright 2000, Greg Ungerer (gerg@snapgear.com)
   7  *      (C) Copyright 2000, Lineo Inc. (www.lineo.com)
   8  */
   9
  10 /****************************************************************************/
  11 #ifndef mcfpci_h
  12 #define mcfpci_h
  13 /****************************************************************************/
  14
  15
  16 #ifdef CONFIG_PCI
  17
  18 /*
  19  *      Address regions in the PCI address space are not mapped into the
  20  *      normal memory space of the ColdFire. They must be accessed via
  21  *      handler routines. This is easy for I/O space (inb/outb/etc) but
  22  *      needs some code changes to support ordinary memory. Interrupts
  23  *      also need to be vectored through the PCI handler first, then it
  24  *      will call the actual driver sub-handlers.
  25  */
  26
  27 /*
  28  *      Un-define all the standard I/O access routines.
  29  */
  30 #undef  inb
  31 #undef  inw
  32 #undef  inl
  33 #undef  inb_p
  34 #undef  inw_p
  35 #undef  insb
  36 #undef  insw
  37 #undef  insl
  38 #undef  outb
  39 #undef  outw
  40 #undef  outl
  41 #undef  outb_p
  42 #undef  outw_p
  43 #undef  outsb
  44 #undef  outsw
  45 #undef  outsl
  46
  47 #undef  request_irq
  48 #undef  free_irq
  49
  50 #undef  bus_to_virt
  51 #undef  virt_to_bus
  52
  53
  54 /*
  55  *      Re-direct all I/O memory accesses functions to PCI specific ones.
  56  */
  57 #define inb     pci_inb
  58 #define inw     pci_inw
  59 #define inl     pci_inl
  60 #define inb_p   pci_inb
  61 #define inw_p   pci_inw
  62 #define insb    pci_insb
  63 #define insw    pci_insw
  64 #define insl    pci_insl
  65
  66 #define outb    pci_outb
  67 #define outw    pci_outw
  68 #define outl    pci_outl
  69 #define outb_p  pci_outb
  70 #define outw_p  pci_outw
  71 #define outsb   pci_outsb
  72 #define outsw   pci_outsw
  73 #define outsl   pci_outsl
  74
  75 #define request_irq     pci_request_irq
  76 #define free_irq        pci_free_irq
  77
  78 #define virt_to_bus     pci_virt_to_bus
  79 #define bus_to_virt     pci_bus_to_virt
  80
  81 #define CONFIG_COMEMPCI 1
  82
  83
  84 /*
  85  *      Prototypes of the real PCI functions (defined in bios32.c).
  86  */
  87 unsigned char   pci_inb(unsigned int addr);
  88 unsigned short  pci_inw(unsigned int addr);
  89 unsigned int    pci_inl(unsigned int addr);
  90 void            pci_insb(void *addr, void *buf, int len);
  91 void            pci_insw(void *addr, void *buf, int len);
  92 void            pci_insl(void *addr, void *buf, int len);
  93
  94 void            pci_outb(unsigned char val, unsigned int addr);
  95 void            pci_outw(unsigned short val, unsigned int addr);
  96 void            pci_outl(unsigned int val, unsigned int addr);
  97 void            pci_outsb(void *addr, void *buf, int len);
  98 void            pci_outsw(void *addr, void *buf, int len);
  99 void            pci_outsl(void *addr, void *buf, int len);
 100
 101 int             pci_request_irq(unsigned int irq,
 102                         void (*handler)(int, void *, struct pt_regs *),
 103                         unsigned long flags,
 104                         const char *device,
 105                         void *dev_id);
 106 void            pci_free_irq(unsigned int irq, void *dev_id);
 107
 108 void            *pci_bmalloc(int size);
 109 void            pci_bmfree(void *bmp, int len);
 110 void            pci_copytoshmem(unsigned long bmp, void *src, int size);
 111 void            pci_copyfromshmem(void *dst, unsigned long bmp, int size);
 112 unsigned long   pci_virt_to_bus(volatile void *address);
 113 void            *pci_bus_to_virt(unsigned long address);
 114 void            pci_bmcpyto(void *dst, void *src, int len);
 115 void            pci_bmcpyfrom(void *dst, void *src, int len);
 116
 117 #endif /* CONFIG_PCI */
 118 /****************************************************************************/
 119 #endif  /* mcfpci_h */