1 #ifndef __I386_LITHIUM_H
2 #define __I386_LITHIUM_H
3
4 #include <linux/config.h>
5
6 /*
7 * Lithium is the I/O ASIC on the SGI 320 and 540 Visual Workstations
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 #ifdef CONFIG_X86_VISWS_APIC
22 /* More special purpose macros... */
23 extern __inline void li_pcia_write16(unsigned long reg, unsigned short v)
24 {
25 *((volatile unsigned short *)(LI_PCIA_VADDR+reg))=v;
26 }
27
28 extern __inline unsigned short li_pcia_read16(unsigned long reg)
29 {
30 return *((volatile unsigned short *)(LI_PCIA_VADDR+reg));
31 }
32
33 extern __inline void li_pcib_write16(unsigned long reg, unsigned short v)
34 {
35 *((volatile unsigned short *)(LI_PCIB_VADDR+reg))=v;
36 }
37
38 extern __inline unsigned short li_pcib_read16(unsigned long reg)
39 {
40 return *((volatile unsigned short *)(LI_PCIB_VADDR+reg));
41 }
42 #endif
43
44 #endif
45
46
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