arm: mach-orion5x: use IOMEM() for base address definitions

We now define all virtual base address constants using IOMEM() so that
those are naturally typed as void __iomem pointers, and we do the
necessary adjustements in the mach-orion5x code.

Note that we introduce a few temporary additional "unsigned long"
casts when calling into plat-orion functions. Those are removed by
followup patches converting plat-orion functions to void __iomem
pointers as well.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>

arch/arm/mach-orion5x/irq.c

@@ -12,6 +12,7 @@
 #include <linux/gpio.h>
 #include <linux/kernel.h>
 #include <linux/irq.h>
+#include <linux/io.h>
 #include <mach/bridge-regs.h>
 #include <plat/irq.h>
 
@@ -24,11 +25,11 @@ static int __initdata gpio0_irqs[4] = {
 
 void __init orion5x_init_irq(void)
 {
-	orion_irq_init(0, (void __iomem *)MAIN_IRQ_MASK);
+	orion_irq_init(0, MAIN_IRQ_MASK);
 
 	/*
 	 * Initialize gpiolib for GPIOs 0-31.
 	 */
-	orion_gpio_init(NULL, 0, 32, (void __iomem *)GPIO_VIRT_BASE, 0,
+	orion_gpio_init(NULL, 0, 32, GPIO_VIRT_BASE, 0,
 			IRQ_ORION5X_GPIO_START, gpio0_irqs);
 }