ARM: __io abuse cleanup

Several platforms incorrectly use __io() for casting to 'void __iomem *'.
This converts all of those uses to use the common IOMEM macro.

Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Anton Vorontsov <cbouatmailru@gmail.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Magnus Damm <magnus.damm@gmail.com>
Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-sh@vger.kernel.org
Acked-by: Arnd Bergmann <arnd@arndb.de>
diff --git a/arch/arm/mach-shmobile/intc-r8a7779.c b/arch/arm/mach-shmobile/intc-r8a7779.c
index 5d92fcd..550b23d 100644
--- a/arch/arm/mach-shmobile/intc-r8a7779.c
+++ b/arch/arm/mach-shmobile/intc-r8a7779.c
@@ -42,8 +42,8 @@
 
 void __init r8a7779_init_irq(void)
 {
-	void __iomem *gic_dist_base = __io(0xf0001000);
-	void __iomem *gic_cpu_base = __io(0xf0000100);
+	void __iomem *gic_dist_base = IOMEM(0xf0001000);
+	void __iomem *gic_cpu_base = IOMEM(0xf0000100);
 
 	/* use GIC to handle interrupts */
 	gic_init(0, 29, gic_dist_base, gic_cpu_base);