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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-sparc/ide.h
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'include/asm-sparc/ide.h')
-rw-r--r--include/asm-sparc/ide.h100
1 files changed, 100 insertions, 0 deletions
diff --git a/include/asm-sparc/ide.h b/include/asm-sparc/ide.h
new file mode 100644
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+++ b/include/asm-sparc/ide.h
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1/* $Id: ide.h,v 1.7 2002/01/16 20:58:40 davem Exp $
2 * ide.h: SPARC PCI specific IDE glue.
3 *
4 * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
5 * Copyright (C) 1998 Eddie C. Dost (ecd@skynet.be)
6 * Adaptation from sparc64 version to sparc by Pete Zaitcev.
7 */
8
9#ifndef _SPARC_IDE_H
10#define _SPARC_IDE_H
11
12#ifdef __KERNEL__
13
14#include <linux/config.h>
15#include <asm/pgtable.h>
16#include <asm/io.h>
17#include <asm/psr.h>
18
19#undef MAX_HWIFS
20#define MAX_HWIFS 2
21
22#define IDE_ARCH_OBSOLETE_INIT
23#define ide_default_io_ctl(base) ((base) + 0x206) /* obsolete */
24
25#define __ide_insl(data_reg, buffer, wcount) \
26 __ide_insw(data_reg, buffer, (wcount)<<1)
27#define __ide_outsl(data_reg, buffer, wcount) \
28 __ide_outsw(data_reg, buffer, (wcount)<<1)
29
30/* On sparc, I/O ports and MMIO registers are accessed identically. */
31#define __ide_mm_insw __ide_insw
32#define __ide_mm_insl __ide_insl
33#define __ide_mm_outsw __ide_outsw
34#define __ide_mm_outsl __ide_outsl
35
36static __inline__ void __ide_insw(unsigned long port,
37 void *dst,
38 unsigned long count)
39{
40 volatile unsigned short *data_port;
41 /* unsigned long end = (unsigned long)dst + (count << 1); */ /* P3 */
42 u16 *ps = dst;
43 u32 *pi;
44
45 data_port = (volatile unsigned short *)port;
46
47 if(((unsigned long)ps) & 0x2) {
48 *ps++ = *data_port;
49 count--;
50 }
51 pi = (u32 *)ps;
52 while(count >= 2) {
53 u32 w;
54
55 w = (*data_port) << 16;
56 w |= (*data_port);
57 *pi++ = w;
58 count -= 2;
59 }
60 ps = (u16 *)pi;
61 if(count)
62 *ps++ = *data_port;
63
64 /* __flush_dcache_range((unsigned long)dst, end); */ /* P3 see hme */
65}
66
67static __inline__ void __ide_outsw(unsigned long port,
68 const void *src,
69 unsigned long count)
70{
71 volatile unsigned short *data_port;
72 /* unsigned long end = (unsigned long)src + (count << 1); */
73 const u16 *ps = src;
74 const u32 *pi;
75
76 data_port = (volatile unsigned short *)port;
77
78 if(((unsigned long)src) & 0x2) {
79 *data_port = *ps++;
80 count--;
81 }
82 pi = (const u32 *)ps;
83 while(count >= 2) {
84 u32 w;
85
86 w = *pi++;
87 *data_port = (w >> 16);
88 *data_port = w;
89 count -= 2;
90 }
91 ps = (const u16 *)pi;
92 if(count)
93 *data_port = *ps;
94
95 /* __flush_dcache_range((unsigned long)src, end); */ /* P3 see hme */
96}
97
98#endif /* __KERNEL__ */
99
100#endif /* _SPARC_IDE_H */