include/asm-i386/mach-visws/lithium.h

   1 #ifndef __I386_SGI_LITHIUM_H
   2 #define __I386_SGI_LITHIUM_H
   3
   4 #include <asm/fixmap.h>
   5
   6 /*
   7  * Lithium is the SGI Visual Workstation I/O ASIC
   8  */
   9
  10 #define LI_PCI_A_PHYS           0xfc000000      /* Enet is dev 3 */
  11 #define LI_PCI_B_PHYS           0xfd000000      /* PIIX4 is here */
  12
  13 /* see set_fixmap() and asm/fixmap.h */
  14 #define LI_PCIA_VADDR   (fix_to_virt(FIX_LI_PCIA))
  15 #define LI_PCIB_VADDR   (fix_to_virt(FIX_LI_PCIB))
  16
  17 /* Not a standard PCI? (not in linux/pci.h) */
  18 #define LI_PCI_BUSNUM   0x44                    /* lo8: primary, hi8: sub */
  19 #define LI_PCI_INTEN    0x46
  20
  21 /* LI_PCI_INTENT bits */
  22 #define LI_INTA_0       0x0001
  23 #define LI_INTA_1       0x0002
  24 #define LI_INTA_2       0x0004
  25 #define LI_INTA_3       0x0008
  26 #define LI_INTA_4       0x0010
  27 #define LI_INTB         0x0020
  28 #define LI_INTC         0x0040
  29 #define LI_INTD         0x0080
  30
  31 /* More special purpose macros... */
  32 extern __inline void li_pcia_write16(unsigned long reg, unsigned short v)
  33 {
  34         *((volatile unsigned short *)(LI_PCIA_VADDR+reg))=v;
  35 }
  36
  37 extern __inline unsigned short li_pcia_read16(unsigned long reg)
  38 {
  39          return *((volatile unsigned short *)(LI_PCIA_VADDR+reg));
  40 }
  41
  42 extern __inline void li_pcib_write16(unsigned long reg, unsigned short v)
  43 {
  44         *((volatile unsigned short *)(LI_PCIB_VADDR+reg))=v;
  45 }
  46
  47 extern __inline unsigned short li_pcib_read16(unsigned long reg)
  48 {
  49         return *((volatile unsigned short *)(LI_PCIB_VADDR+reg));
  50 }
  51
  52 #endif
  53