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91a9fec0 RH |
1 | /* |
2 | * arch/arm/include/debug/icedcc.S | |
3 | * | |
4 | * Copyright (C) 1994-1999 Russell King | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License version 2 as | |
8 | * published by the Free Software Foundation. | |
9 | * | |
10 | */ | |
11 | ||
12 | @@ debug using ARM EmbeddedICE DCC channel | |
13 | ||
14 | .macro addruart, rp, rv, tmp | |
15 | .endm | |
16 | ||
17 | #if defined(CONFIG_CPU_V6) || defined(CONFIG_CPU_V6K) || defined(CONFIG_CPU_V7) | |
18 | ||
19 | .macro senduart, rd, rx | |
20 | mcr p14, 0, \rd, c0, c5, 0 | |
21 | .endm | |
22 | ||
23 | .macro busyuart, rd, rx | |
24 | 1001: | |
25 | mrc p14, 0, \rx, c0, c1, 0 | |
26 | tst \rx, #0x20000000 | |
27 | beq 1001b | |
28 | .endm | |
29 | ||
30 | .macro waituart, rd, rx | |
31 | mov \rd, #0x2000000 | |
32 | 1001: | |
33 | subs \rd, \rd, #1 | |
34 | bmi 1002f | |
35 | mrc p14, 0, \rx, c0, c1, 0 | |
36 | tst \rx, #0x20000000 | |
37 | bne 1001b | |
38 | 1002: | |
39 | .endm | |
40 | ||
41 | #elif defined(CONFIG_CPU_XSCALE) | |
42 | ||
43 | .macro senduart, rd, rx | |
44 | mcr p14, 0, \rd, c8, c0, 0 | |
45 | .endm | |
46 | ||
47 | .macro busyuart, rd, rx | |
48 | 1001: | |
49 | mrc p14, 0, \rx, c14, c0, 0 | |
50 | tst \rx, #0x10000000 | |
51 | beq 1001b | |
52 | .endm | |
53 | ||
54 | .macro waituart, rd, rx | |
55 | mov \rd, #0x10000000 | |
56 | 1001: | |
57 | subs \rd, \rd, #1 | |
58 | bmi 1002f | |
59 | mrc p14, 0, \rx, c14, c0, 0 | |
60 | tst \rx, #0x10000000 | |
61 | bne 1001b | |
62 | 1002: | |
63 | .endm | |
64 | ||
65 | #else | |
66 | ||
67 | .macro senduart, rd, rx | |
68 | mcr p14, 0, \rd, c1, c0, 0 | |
69 | .endm | |
70 | ||
71 | .macro busyuart, rd, rx | |
72 | 1001: | |
73 | mrc p14, 0, \rx, c0, c0, 0 | |
74 | tst \rx, #2 | |
75 | beq 1001b | |
76 | ||
77 | .endm | |
78 | ||
79 | .macro waituart, rd, rx | |
80 | mov \rd, #0x2000000 | |
81 | 1001: | |
82 | subs \rd, \rd, #1 | |
83 | bmi 1002f | |
84 | mrc p14, 0, \rx, c0, c0, 0 | |
85 | tst \rx, #2 | |
86 | bne 1001b | |
87 | 1002: | |
88 | .endm | |
89 | ||
90 | #endif /* CONFIG_CPU_V6 */ |