ARM: EXYNOS: Remove legacy interrupt initialization code

This patch removes legacy IRQ initialization code that was used to set
up interrupt handling when booting with ATAGS, which is not supported
any more.

Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

arch/arm/mach-exynos/common.c

@@ -41,7 +41,6 @@
 #include <mach/regs-irq.h>
 #include <mach/regs-pmu.h>
 #include <mach/regs-gpio.h>
-#include <mach/irqs.h>
 
 #include <plat/cpu.h>
 #include <plat/devs.h>
@@ -486,41 +485,14 @@ void __init exynos_init_time(void)
 	}
 }
 
-static unsigned int max_combiner_nr(void)
-{
-	if (soc_is_exynos5250())
-		return EXYNOS5_MAX_COMBINER_NR;
-	else if (soc_is_exynos4412())
-		return EXYNOS4412_MAX_COMBINER_NR;
-	else if (soc_is_exynos4212())
-		return EXYNOS4212_MAX_COMBINER_NR;
-	else
-		return EXYNOS4210_MAX_COMBINER_NR;
-}
-
-
 void __init exynos4_init_irq(void)
 {
-	unsigned int gic_bank_offset;
-
-	gic_bank_offset = soc_is_exynos4412() ? 0x4000 : 0x8000;
-
-	if (!of_have_populated_dt())
-		gic_init_bases(0, IRQ_PPI(0), S5P_VA_GIC_DIST, S5P_VA_GIC_CPU, gic_bank_offset, NULL);
-	else
-		irqchip_init();
-
-	if (!of_have_populated_dt())
-		combiner_init(S5P_VA_COMBINER_BASE, NULL,
-			      max_combiner_nr(), COMBINER_IRQ(0, 0));
-
-	gic_arch_extn.irq_set_wake = s3c_irq_wake;
+	irqchip_init();
 }
 
 void __init exynos5_init_irq(void)
 {
 	irqchip_init();
-	gic_arch_extn.irq_set_wake = s3c_irq_wake;
 }
 
 struct bus_type exynos_subsys = {