2 * linux/include/asm-i386/ide.h
4 * Copyright (C) 1994-1996 Linus Torvalds & authors
8 * This file contains the i386 architecture specific IDE code.
11 #ifndef __ASMi386_IDE_H
12 #define __ASMi386_IDE_H
18 # ifdef CONFIG_BLK_DEV_IDEPCI
25 #define IDE_ARCH_OBSOLETE_DEFAULTS
27 static __inline__ int ide_default_irq(unsigned long base)
30 case 0x1f0: return 14;
31 case 0x170: return 15;
32 case 0x1e8: return 11;
33 case 0x168: return 10;
35 case 0x160: return 12;
41 static __inline__ unsigned long ide_default_io_base(int index)
44 * If PCI is present then it is not safe to poke around
45 * the other legacy IDE ports. Only 0x1f0 and 0x170 are
46 * defined compatibility mode ports for PCI. A user can
47 * override this using ide= but we must default safe.
49 if (no_pci_devices()) {
65 #define ide_default_io_ctl(base) ((base) + 0x206) /* obsolete */
67 #ifdef CONFIG_BLK_DEV_IDEPCI
68 #define ide_init_default_irq(base) (0)
70 #define ide_init_default_irq(base) ide_default_irq(base)
73 #include <asm-generic/ide_iops.h>
75 #endif /* __KERNEL__ */
77 #endif /* __ASMi386_IDE_H */