Davinci: gpio - use ioremap()

This patch modifies the gpio_base definition in davinci_soc_info to be a
physical address, which is then ioremap()ed by the gpio initialization
function.

Signed-off-by: Cyril Chemparathy <cyril@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
diff --git a/arch/arm/mach-davinci/include/mach/common.h b/arch/arm/mach-davinci/include/mach/common.h
index a58bd88..2dd2226 100644
--- a/arch/arm/mach-davinci/include/mach/common.h
+++ b/arch/arm/mach-davinci/include/mach/common.h
@@ -60,7 +60,7 @@
 	unsigned long			intc_irq_num;
 	struct davinci_timer_info	*timer_info;
 	int				gpio_type;
-	void __iomem			*gpio_base;
+	u32				gpio_base;
 	unsigned			gpio_num;
 	unsigned			gpio_irq;
 	unsigned			gpio_unbanked;