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1/*
2 * Copyright (C) 1994-1996 Linus Torvalds & authors
3 *
4 * This file contains the powerpc architecture specific IDE code.
5 */
6#ifndef _ASM_POWERPC_IDE_H
7#define _ASM_POWERPC_IDE_H
8
9#ifdef __KERNEL__
10
11#ifndef __powerpc64__
12#include <linux/sched.h>
13#include <asm/mpc8xx.h>
14#endif
15#include <asm/io.h>
16
17#ifndef MAX_HWIFS
18#ifdef __powerpc64__
19#define MAX_HWIFS 10
20#else
21#define MAX_HWIFS 8
22#endif
23#endif
24
25#define __ide_mm_insw(p, a, c) readsw((void __iomem *)(p), (a), (c))
26#define __ide_mm_insl(p, a, c) readsl((void __iomem *)(p), (a), (c))
27#define __ide_mm_outsw(p, a, c) writesw((void __iomem *)(p), (a), (c))
28#define __ide_mm_outsl(p, a, c) writesl((void __iomem *)(p), (a), (c))
29
30#ifndef __powerpc64__
31#include <linux/hdreg.h>
32#include <linux/ioport.h>
33
34/* FIXME: use ide_platform host driver */
35static __inline__ int ide_default_irq(unsigned long base)
36{
37#ifdef CONFIG_PPLUS
38 switch (base) {
39 case 0x1f0: return 14;
40 case 0x170: return 15;
41 }
42#endif
43#ifdef CONFIG_PPC_PREP
44 switch (base) {
45 case 0x1f0: return 13;
46 case 0x170: return 13;
47 case 0x1e8: return 11;
48 case 0x168: return 10;
49 case 0xfff0: return 14; /* MCP(N)750 ide0 */
50 case 0xffe0: return 15; /* MCP(N)750 ide1 */
51 }
52#endif
53 return 0;
54}
55
56/* FIXME: use ide_platform host driver */
57static __inline__ unsigned long ide_default_io_base(int index)
58{
59#ifdef CONFIG_PPLUS
60 switch (index) {
61 case 0: return 0x1f0;
62 case 1: return 0x170;
63 }
64#endif
65#ifdef CONFIG_PPC_PREP
66 switch (index) {
67 case 0: return 0x1f0;
68 case 1: return 0x170;
69 case 2: return 0x1e8;
70 case 3: return 0x168;
71 }
72#endif
73 return 0;
74}
75
76#ifdef CONFIG_BLK_DEV_MPC8xx_IDE
77#define IDE_ARCH_ACK_INTR 1
78#define ide_ack_intr(hwif) ((hwif)->ack_intr ? (hwif)->ack_intr(hwif) : 1)
79#endif
80
81#endif /* __powerpc64__ */
82
83#endif /* __KERNEL__ */
84
85#endif /* _ASM_POWERPC_IDE_H */