| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame^] | 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 | |