diff options
Diffstat (limited to 'arch/arm/include/debug/icedcc.S')
| -rw-r--r-- | arch/arm/include/debug/icedcc.S | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/arch/arm/include/debug/icedcc.S b/arch/arm/include/debug/icedcc.S new file mode 100644 index 000000000000..43afcb021fa3 --- /dev/null +++ b/arch/arm/include/debug/icedcc.S | |||
| @@ -0,0 +1,90 @@ | |||
| 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 */ | ||