ARM: EXYNOS: Bring exynos4-dt up to date

This commit brings exynos4-dt in line with recent changes to
mach-exynos tree, specifically:

 - Fixes build break related to replacing plat/exynos4.h with
   common.h in commit cc511b8d84 ("ARM: 7257/1: EXYNOS:
   introduce arch/arm/mach-exynos/common.[ch]")

 - Converts machine to use CONFIG_MULTI_IRQ_HANDLER as done for
   other machines in commit 4e44d2cb95 ("ARM: exynos4: convert
   to CONFIG_MULTI_IRQ_HANDLER")

 - Adds restart specifier as done for other machines in commit
   9eb4859564 ("ARM: 7262/1: restart: EXYNOS: use new restart hook")

Signed-off-by: Karol Lewandowski <k.lewandowsk@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Thomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

arch/arm/mach-exynos/mach-exynos4-dt.c

@@ -15,11 +15,13 @@
 #include <linux/serial_core.h>
 
 #include <asm/mach/arch.h>
+#include <asm/hardware/gic.h>
 #include <mach/map.h>
 
 #include <plat/cpu.h>
 #include <plat/regs-serial.h>
-#include <plat/exynos4.h>
+
+#include "common.h"
 
 /*
  * The following lookup table is used to override device names when devices
@@ -60,7 +62,7 @@ static const struct of_dev_auxdata exynos4210_auxdata_lookup[] __initconst = {
 
 static void __init exynos4210_dt_map_io(void)
 {
-	s5p_init_io(NULL, 0, S5P_VA_CHIPID);
+	exynos_init_io(NULL, 0);
 	s3c24xx_init_clocks(24000000);
 }
 
@@ -79,7 +81,9 @@ DT_MACHINE_START(EXYNOS4210_DT, "Samsung Exynos4 (Flattened Device Tree)")
 	/* Maintainer: Thomas Abraham <thomas.abraham@linaro.org> */
 	.init_irq	= exynos4_init_irq,
 	.map_io		= exynos4210_dt_map_io,
+	.handle_irq	= gic_handle_irq,
 	.init_machine	= exynos4210_dt_machine_init,
 	.timer		= &exynos4_timer,
 	.dt_compat	= exynos4210_dt_compat,
+	.restart        = exynos4_restart,
 MACHINE_END