--- linux-2.6.22.14/arch/mips/rb/cr/IRQ.S	1970-01-01 03:00:00.000000000 +0300
+++ linux/arch/mips/rb/cr/IRQ.S	2008-01-15 11:01:09.000000000 +0200
@@ -0,0 +1,58 @@
+/*
+ * Copyright 2001 MontaVista Software Inc.
+ * Author: stevel@mvista.com
+ *
+ * Interrupt dispatcher for CR board.
+ *
+ * This program is free software; you can redistribute	it and/or modify it
+ * under  the terms of	the GNU General	 Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#define __ASSEMBLY__ 1
+
+#include <asm/asm.h>
+#include <asm/mipsregs.h>
+#include <asm/regdef.h>
+#include <asm/stackframe.h>
+#include <asm/irqflags.h>
+
+	.text
+	.set	noreorder
+	.set	noat
+	.align	5
+	NESTED(cr_IRQ, PT_SIZE, sp)
+	SAVE_ALL
+	CLI
+	TRACE_IRQS_OFF
+	LONG_L	s0, TI_REGS($28)
+	LONG_S	sp, TI_REGS($28)
+	PTR_LA	ra, ret_from_irq
+
+	.set	at
+
+	/* Get the pending interrupts */
+	mfc0    t0, CP0_CAUSE
+	nop
+			 
+	/* Isolate the allowed ones by anding the irq mask */
+	mfc0    t2, CP0_STATUS
+	nop
+	andi    t0, CAUSEF_IP
+	and     t0, t2
+								  
+	/* check for r4k counter/timer IRQ. */
+	
+	andi    t1, t0, CAUSEF_IP7
+	beqz    t1, 1f
+	nop
+
+	j	ll_timer_interrupt	 
+	li	a0, 7
+
+1:
+	j	cr_irqdispatch
+	move	a0, t0
+
+	END(cr_IRQ)