54 lines
1.3 KiB
C
54 lines
1.3 KiB
C
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#ifndef __I386_SGI_LITHIUM_H
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#define __I386_SGI_LITHIUM_H
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#include <asm/fixmap.h>
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/*
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* Lithium is the SGI Visual Workstation I/O ASIC
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*/
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#define LI_PCI_A_PHYS 0xfc000000 /* Enet is dev 3 */
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#define LI_PCI_B_PHYS 0xfd000000 /* PIIX4 is here */
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/* see set_fixmap() and asm/fixmap.h */
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#define LI_PCIA_VADDR (fix_to_virt(FIX_LI_PCIA))
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#define LI_PCIB_VADDR (fix_to_virt(FIX_LI_PCIB))
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/* Not a standard PCI? (not in linux/pci.h) */
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#define LI_PCI_BUSNUM 0x44 /* lo8: primary, hi8: sub */
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#define LI_PCI_INTEN 0x46
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/* LI_PCI_INTENT bits */
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#define LI_INTA_0 0x0001
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#define LI_INTA_1 0x0002
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#define LI_INTA_2 0x0004
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#define LI_INTA_3 0x0008
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#define LI_INTA_4 0x0010
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#define LI_INTB 0x0020
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#define LI_INTC 0x0040
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#define LI_INTD 0x0080
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/* More special purpose macros... */
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extern __inline void li_pcia_write16(unsigned long reg, unsigned short v)
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{
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*((volatile unsigned short *)(LI_PCIA_VADDR+reg))=v;
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}
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extern __inline unsigned short li_pcia_read16(unsigned long reg)
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{
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return *((volatile unsigned short *)(LI_PCIA_VADDR+reg));
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}
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extern __inline void li_pcib_write16(unsigned long reg, unsigned short v)
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{
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*((volatile unsigned short *)(LI_PCIB_VADDR+reg))=v;
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}
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extern __inline unsigned short li_pcib_read16(unsigned long reg)
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{
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return *((volatile unsigned short *)(LI_PCIB_VADDR+reg));
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}
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#endif
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