[ARM] Use new get_irqnr_preamble

Use the new get_irqnr_preamble macro to move the address of the IRQ
controller outside the IRQ handling loop.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/include/asm-arm/arch-rpc/entry-macro.S b/include/asm-arm/arch-rpc/entry-macro.S
index 0cfb89b..038b761 100644
--- a/include/asm-arm/arch-rpc/entry-macro.S
+++ b/include/asm-arm/arch-rpc/entry-macro.S
@@ -1,6 +1,14 @@
 #include <asm/hardware.h>
 #include <asm/hardware/entry-macro-iomd.S>
+
+	.equ	ioc_base_high, IOC_BASE & 0xff000000
+	.equ	ioc_base_low, IOC_BASE & 0x00ff0000
+
 	.macro  get_irqnr_preamble, base, tmp
+	mov	\base, #ioc_base_high		@ point at IOC
+	.if	ioc_base_low
+	orr	\base, \base, #ioc_base_low
+	.endif
 	.endm
 
 	.macro  arch_ret_to_user, tmp1, tmp2