ARM: shmobile: marzen: Use DT for GIC

Current Marzen is using DT booting,
and r8a7779.dtsi already has GIC settings.

So, we can remove the C version of the GIC setup code,
instead rely on GIC information provided by DT.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

3 files changed, 5 insertions, 21 deletions

diff --git a/arch/arm/mach-shmobile/board-marzen.c b/arch/arm/mach-shmobile/board-marzen.c
index bcd07c065224..f3027295f60c 100644
--- a/arch/arm/mach-shmobile/board-marzen.c
+++ b/arch/arm/mach-shmobile/board-marzen.c
@@ -247,8 +247,7 @@ DT_MACHINE_START(MARZEN, "marzen")
         .smp            = smp_ops(r8a7779_smp_ops),
         .map_io         = r8a7779_map_io,
         .init_early     = r8a7779_add_early_devices,
-        .nr_irqs        = NR_IRQS_LEGACY,
-        .init_irq       = r8a7779_init_irq,
+        .init_irq       = r8a7779_init_irq_dt,
         .init_machine   = marzen_init,
         .init_late      = r8a7779_init_late,
         .dt_compat      = marzen_boards_compat_dt,
diff --git a/arch/arm/mach-shmobile/include/mach/r8a7779.h b/arch/arm/mach-shmobile/include/mach/r8a7779.h
index fc47073c7ba9..c62252f77c85 100644
--- a/arch/arm/mach-shmobile/include/mach/r8a7779.h
+++ b/arch/arm/mach-shmobile/include/mach/r8a7779.h
@@ -25,7 +25,6 @@ static inline struct r8a7779_pm_ch *to_r8a7779_ch(struct generic_pm_domain *d)
 }
 
 extern void r8a7779_init_delay(void);
-extern void r8a7779_init_irq(void);
 extern void r8a7779_init_irq_extpin(int irlm);
 extern void r8a7779_init_irq_dt(void);
 extern void r8a7779_map_io(void);
diff --git a/arch/arm/mach-shmobile/intc-r8a7779.c b/arch/arm/mach-shmobile/intc-r8a7779.c
index b86dc8908724..8a082f032414 100644
--- a/arch/arm/mach-shmobile/intc-r8a7779.c
+++ b/arch/arm/mach-shmobile/intc-r8a7779.c
@@ -90,15 +90,18 @@ void __init r8a7779_init_irq_extpin(int irlm)
                 pr_warn("r8a7779: unable to setup external irq pin mode\n");
 }
 
+#ifdef CONFIG_OF
 static int r8a7779_set_wake(struct irq_data *data, unsigned int on)
 {
         return 0; /* always allow wakeup */
 }
 
-static void __init r8a7779_init_irq_common(void)
+void __init r8a7779_init_irq_dt(void)
 {
         gic_arch_extn.irq_set_wake = r8a7779_set_wake;
 
+        irqchip_init();
+
         /* route all interrupts to ARM */
         __raw_writel(0xffffffff, INT2NTSR0);
         __raw_writel(0x3fffffff, INT2NTSR1);
@@ -109,23 +112,6 @@ static void __init r8a7779_init_irq_common(void)
         __raw_writel(0xfffbffdf, INT2SMSKCR2);
         __raw_writel(0xbffffffc, INT2SMSKCR3);
         __raw_writel(0x003fee3f, INT2SMSKCR4);
-}
-
-void __init r8a7779_init_irq(void)
-{
-        void __iomem *gic_dist_base = IOMEM(0xf0001000);
-        void __iomem *gic_cpu_base = IOMEM(0xf0000100);
 
-        /* use GIC to handle interrupts */
-        gic_init(0, 29, gic_dist_base, gic_cpu_base);
-
-        r8a7779_init_irq_common();
-}
-
-#ifdef CONFIG_OF
-void __init r8a7779_init_irq_dt(void)
-{
-        irqchip_init();
-        r8a7779_init_irq_common();
 }
 #endif