Commit | Line | Data |
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64d329ee | 1 | /* ide.h: SPARC PCI specific IDE glue. |
1da177e4 | 2 | * |
64d329ee | 3 | * Copyright (C) 1997 David S. Miller (davem@davemloft.net) |
1da177e4 LT |
4 | * Copyright (C) 1998 Eddie C. Dost (ecd@skynet.be) |
5 | * Adaptation from sparc64 version to sparc by Pete Zaitcev. | |
6 | */ | |
7 | ||
8 | #ifndef _SPARC_IDE_H | |
9 | #define _SPARC_IDE_H | |
10 | ||
11 | #ifdef __KERNEL__ | |
12 | ||
1da177e4 LT |
13 | #include <asm/pgtable.h> |
14 | #include <asm/io.h> | |
15 | #include <asm/psr.h> | |
16 | ||
17 | #undef MAX_HWIFS | |
18 | #define MAX_HWIFS 2 | |
19 | ||
1da177e4 LT |
20 | #define __ide_insl(data_reg, buffer, wcount) \ |
21 | __ide_insw(data_reg, buffer, (wcount)<<1) | |
22 | #define __ide_outsl(data_reg, buffer, wcount) \ | |
23 | __ide_outsw(data_reg, buffer, (wcount)<<1) | |
24 | ||
25 | /* On sparc, I/O ports and MMIO registers are accessed identically. */ | |
26 | #define __ide_mm_insw __ide_insw | |
27 | #define __ide_mm_insl __ide_insl | |
28 | #define __ide_mm_outsw __ide_outsw | |
29 | #define __ide_mm_outsl __ide_outsl | |
30 | ||
64d329ee | 31 | static inline void __ide_insw(unsigned long port, |
1da177e4 LT |
32 | void *dst, |
33 | unsigned long count) | |
34 | { | |
35 | volatile unsigned short *data_port; | |
36 | /* unsigned long end = (unsigned long)dst + (count << 1); */ /* P3 */ | |
37 | u16 *ps = dst; | |
38 | u32 *pi; | |
39 | ||
40 | data_port = (volatile unsigned short *)port; | |
41 | ||
42 | if(((unsigned long)ps) & 0x2) { | |
43 | *ps++ = *data_port; | |
44 | count--; | |
45 | } | |
46 | pi = (u32 *)ps; | |
47 | while(count >= 2) { | |
48 | u32 w; | |
49 | ||
50 | w = (*data_port) << 16; | |
51 | w |= (*data_port); | |
52 | *pi++ = w; | |
53 | count -= 2; | |
54 | } | |
55 | ps = (u16 *)pi; | |
56 | if(count) | |
57 | *ps++ = *data_port; | |
58 | ||
59 | /* __flush_dcache_range((unsigned long)dst, end); */ /* P3 see hme */ | |
60 | } | |
61 | ||
64d329ee | 62 | static inline void __ide_outsw(unsigned long port, |
1da177e4 LT |
63 | const void *src, |
64 | unsigned long count) | |
65 | { | |
66 | volatile unsigned short *data_port; | |
67 | /* unsigned long end = (unsigned long)src + (count << 1); */ | |
68 | const u16 *ps = src; | |
69 | const u32 *pi; | |
70 | ||
71 | data_port = (volatile unsigned short *)port; | |
72 | ||
73 | if(((unsigned long)src) & 0x2) { | |
74 | *data_port = *ps++; | |
75 | count--; | |
76 | } | |
77 | pi = (const u32 *)ps; | |
78 | while(count >= 2) { | |
79 | u32 w; | |
80 | ||
81 | w = *pi++; | |
82 | *data_port = (w >> 16); | |
83 | *data_port = w; | |
84 | count -= 2; | |
85 | } | |
86 | ps = (const u16 *)pi; | |
87 | if(count) | |
88 | *data_port = *ps; | |
89 | ||
90 | /* __flush_dcache_range((unsigned long)src, end); */ /* P3 see hme */ | |
91 | } | |
92 | ||
93 | #endif /* __KERNEL__ */ | |
94 | ||
95 | #endif /* _SPARC_IDE_H */ |