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1da177e4 LT |
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 |