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lithium.h
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1 #ifndef _ASM_X86_VISWS_LITHIUM_H
2 #define _ASM_X86_VISWS_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 static inline void li_pcia_write16(unsigned long reg, unsigned short v)
33 {
34  *((volatile unsigned short *)(LI_PCIA_VADDR+reg))=v;
35 }
36 
37 static inline unsigned short li_pcia_read16(unsigned long reg)
38 {
39  return *((volatile unsigned short *)(LI_PCIA_VADDR+reg));
40 }
41 
42 static inline void li_pcib_write16(unsigned long reg, unsigned short v)
43 {
44  *((volatile unsigned short *)(LI_PCIB_VADDR+reg))=v;
45 }
46 
47 static inline unsigned short li_pcib_read16(unsigned long reg)
48 {
49  return *((volatile unsigned short *)(LI_PCIB_VADDR+reg));
50 }
51 
52 #endif /* _ASM_X86_VISWS_LITHIUM_H */
53