ARM: mach-shmobile: Run-time IRQ handler for GIC

Break-out GIC specific IRQ demux code from the file
entry-macro-intc.S and register during run-time.

Covers sh73a0.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

arch/arm/mach-shmobile/Makefile

@@ -22,6 +22,7 @@ pfc-$(CONFIG_ARCH_SH73A0)	+= pfc-sh73a0.o
 obj-$(CONFIG_ARCH_SH7367)	+= entry-intc.o
 obj-$(CONFIG_ARCH_SH7377)	+= entry-intc.o
 obj-$(CONFIG_ARCH_SH7372)	+= entry-intc.o
+obj-$(CONFIG_ARCH_SH73A0)	+= entry-gic.o
 
 # Board objects
 obj-$(CONFIG_MACH_G3EVM)	+= board-g3evm.o

arch/arm/mach-shmobile/board-ag5evm.c

@@ -309,6 +309,7 @@ struct sys_timer ag5evm_timer = {
 MACHINE_START(AG5EVM, "ag5evm")
 	.map_io		= ag5evm_map_io,
 	.init_irq	= ag5evm_init_irq,
+	.handle_irq	= shmobile_handle_irq_gic,
 	.init_machine	= ag5evm_init,
 	.timer		= &ag5evm_timer,
 MACHINE_END

arch/arm/mach-shmobile/entry-gic.S

@@ -0,0 +1,20 @@
+/*
+ * ARM Interrupt demux handler using GIC
+ *
+ * Copyright (C) 2010 Magnus Damm
+ * Copyright (C) 2010 Renesas Solutions Corp.
+ *
+ * This file is licensed under  the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <asm/entry-macro-multi.S>
+#include <asm/hardware/gic.h>
+#include <asm/hardware/entry-macro-gic.S>
+
+	.macro	get_irqnr_preamble, base, tmp
+	ldr	\base, =(0xf0000100)
+	.endm
+
+	arch_irq_handler shmobile_handle_irq_gic

arch/arm/mach-shmobile/include/mach/common.h

@@ -6,6 +6,7 @@ extern void shmobile_setup_console(void);
 struct clk;
 extern int clk_init(void);
 extern void shmobile_handle_irq_intc(struct pt_regs *);
+extern void shmobile_handle_irq_gic(struct pt_regs *);
 
 extern void sh7367_init_irq(void);
 extern void sh7367_add_early_devices(void);