ARM: move debug macros to common location

Based on suggestion by Russell King, create a common location for debug
macros and select the included debug macro file using config option.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Russell King <linux@arm.linux.org.uk>

arch/arm/include/debug/icedcc.S

@@ -0,0 +1,90 @@
+/*
+ *  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 */