/*
* arch/arm/include/debug/icedcc.S
*
* Copyright (C) 1994-1999 Russell King
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
*/

@@ debug using ARM EmbeddedICE DCC channel

.macro addruart, rp, rv, tmp
.endm

#if defined(CONFIG_CPU_V6) || defined(CONFIG_CPU_V6K) || defined(CONFIG_CPU_V7)

.macro senduart, rd, rx
mcr p14, 0, \rd, c0, c5, 0
.endm

.macro busyuart, rd, rx
1001:
mrc p14, 0, \rx, c0, c1, 0
tst \rx, #0x20000000
beq 1001b
.endm

.macro waituart, rd, rx
mov \rd, #0x2000000
1001:
subs \rd, \rd, #1
bmi 1002f
mrc p14, 0, \rx, c0, c1, 0
tst \rx, #0x20000000
bne 1001b
1002:
.endm

#elif defined(CONFIG_CPU_XSCALE)

.macro senduart, rd, rx
mcr p14, 0, \rd, c8, c0, 0
.endm

.macro busyuart, rd, rx
1001:
mrc p14, 0, \rx, c14, c0, 0
tst \rx, #0x10000000
beq 1001b
.endm

.macro waituart, rd, rx
mov \rd, #0x10000000
1001:
subs \rd, \rd, #1
bmi 1002f
mrc p14, 0, \rx, c14, c0, 0
tst \rx, #0x10000000
bne 1001b
1002:
.endm

#else

.macro senduart, rd, rx
mcr p14, 0, \rd, c1, c0, 0
.endm

.macro busyuart, rd, rx
1001:
mrc p14, 0, \rx, c0, c0, 0
tst \rx, #2
beq 1001b

.endm

.macro waituart, rd, rx
mov \rd, #0x2000000
1001:
subs \rd, \rd, #1
bmi 1002f
mrc p14, 0, \rx, c0, c0, 0
tst \rx, #2
bne 1001b
1002:
.endm

#endif /* CONFIG_CPU_V6 */