ARM: imx: remove last explicit users of virtual base address defines

This allows changing the mapping without the need to adapt all users.

While at it remove some unneeded casts to void __iomem *, this is already
taken care for in the IO_ADDRESS macros

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
diff --git a/arch/arm/mach-mx25/devices.c b/arch/arm/mach-mx25/devices.c
index 1d0eb3e..92eb1a9 100644
--- a/arch/arm/mach-mx25/devices.c
+++ b/arch/arm/mach-mx25/devices.c
@@ -182,22 +182,22 @@
 static struct mxc_gpio_port imx_gpio_ports[] = {
 	{
 		.chip.label = "gpio-0",
-		.base = (void __iomem *)MX25_GPIO1_BASE_ADDR_VIRT,
+		.base = MX25_IO_ADDRESS(MX25_GPIO1_BASE_ADDR),
 		.irq = 52,
 		.virtual_irq_start = MXC_GPIO_IRQ_START,
 	}, {
 		.chip.label = "gpio-1",
-		.base = (void __iomem *)MX25_GPIO2_BASE_ADDR_VIRT,
+		.base = MX25_IO_ADDRESS(MX25_GPIO2_BASE_ADDR),
 		.irq = 51,
 		.virtual_irq_start = MXC_GPIO_IRQ_START + 32,
 	}, {
 		.chip.label = "gpio-2",
-		.base = (void __iomem *)MX25_GPIO3_BASE_ADDR_VIRT,
+		.base = MX25_IO_ADDRESS(MX25_GPIO3_BASE_ADDR),
 		.irq = 16,
 		.virtual_irq_start = MXC_GPIO_IRQ_START + 64,
 	}, {
 		.chip.label = "gpio-3",
-		.base = (void __iomem *)MX25_GPIO4_BASE_ADDR_VIRT,
+		.base = MX25_IO_ADDRESS(MX25_GPIO4_BASE_ADDR),
 		.irq = 23,
 		.virtual_irq_start = MXC_GPIO_IRQ_START + 96,
 	}
diff --git a/arch/arm/mach-mx25/mm.c b/arch/arm/mach-mx25/mm.c
index 11cd335..2edec6c 100644
--- a/arch/arm/mach-mx25/mm.c
+++ b/arch/arm/mach-mx25/mm.c
@@ -56,7 +56,7 @@
 
 void __init mx25_init_irq(void)
 {
-	mxc_init_irq((void __iomem *)MX25_AVIC_BASE_ADDR_VIRT);
+	mxc_init_irq(MX25_IO_ADDRESS(MX25_AVIC_BASE_ADDR));
 	imx25_register_gpios();
 }