[PATCH] ARM: 2686/2: AAEC-2000 Core support

Patch from Bellido Nicolas

Core support for AAEC-2000 based platforms.
This is an updated version of the previous patch, and takes
into account Russell's comments.
AAED-2000 default configuration will follow as soon
as some problems with the bootloader are sorted out...

Signed-off-by: Nicolas Bellido
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

include/asm-arm/arch-aaec2000/entry-macro.S

@@ -0,0 +1,33 @@
+/*
+ *  linux/include/asm-arm/arch-aaec2000/entry-macro.S
+ *
+ *  Low-level IRQ helper for aaec-2000 based platforms
+ *
+ *  Copyright (c) 2005 Nicolas Bellido Y Ortega
+ *
+ *  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.
+ *
+ */
+
+		.macro	disable_fiq
+		.endm
+
+		.macro	get_irqnr_and_base, irqnr, irqstat, base, tmp
+		mov	r4, #0xf8000000
+		add	r4, r4, #0x00000500
+		mov	\base, r4
+		ldr	\irqstat, [\base, #0]
+		cmp	\irqstat, #0
+		bne	1001f
+		ldr	\irqnr, =NR_IRQS+1
+		b       1003f
+1001:		mov	\irqnr, #0
+1002:		ands	\tmp, \irqstat, #1
+		mov	\irqstat, \irqstat, LSR #1
+		add	\irqnr, \irqnr, #1
+		beq	1002b
+		sub	\irqnr, \irqnr, #1
+1003:
+		.endm