m68knommu: use common interrupt controller code for older ColdFire CPU's

The old ColdFire CPU's (5206, 5307, 5407, 5249 etc) use a simple
interrupt controller. Use common setup code for them. This addition
means that all ColdFire CPU's now have some specific type of interrupt
controller code.
Signed-off-by: NGreg Ungerer <gerg@uclinux.org>

arch/m68knommu/kernel/irq.c

@@ -29,9 +29,7 @@ asmlinkage void do_IRQ(int irq, struct pt_regs *regs)
 	set_irq_regs(oldregs);
 }
 
-#if !defined(CONFIG_M520x) && !defined(CONFIG_M523x) && \
-    !defined(CONFIG_M527x) && !defined(CONFIG_M528x) && \
-    !defined(CONFIG_M532x)
+#if !defined(CONFIG_COLDFIRE)
 
 static struct irq_chip m_irq_chip = {
 	.name		= "M68K-INTC",

arch/m68knommu/platform/coldfire/Makefile

@@ -15,17 +15,17 @@
 asflags-$(CONFIG_FULLDEBUG) := -DDEBUGGER_COMPATIBLE_CACHE=1
 
 obj-$(CONFIG_COLDFIRE)	+= clk.o dma.o entry.o vectors.o
-obj-$(CONFIG_M5206)	+= timers.o
-obj-$(CONFIG_M5206e)	+= timers.o
+obj-$(CONFIG_M5206)	+= timers.o intc.o
+obj-$(CONFIG_M5206e)	+= timers.o intc.o
 obj-$(CONFIG_M520x)	+= pit.o intc-simr.o
 obj-$(CONFIG_M523x)	+= pit.o dma_timer.o intc-2.o
-obj-$(CONFIG_M5249)	+= timers.o
+obj-$(CONFIG_M5249)	+= timers.o intc.o
 obj-$(CONFIG_M527x)	+= pit.o intc-2.o
-obj-$(CONFIG_M5272)	+= timers.o
+obj-$(CONFIG_M5272)	+= timers.o intc.o
 obj-$(CONFIG_M528x)	+= pit.o intc-2.o
-obj-$(CONFIG_M5307)	+= timers.o
+obj-$(CONFIG_M5307)	+= timers.o intc.o
 obj-$(CONFIG_M532x)	+= timers.o intc-simr.o
-obj-$(CONFIG_M5407)	+= timers.o
+obj-$(CONFIG_M5407)	+= timers.o intc.o
 
 obj-y			+= pinmux.o gpio.o
 extra-y := head.o

arch/m68knommu/platform/coldfire/intc.c

+/*
+ * intc.c
+ *
+ * (C) Copyright 2009, Greg Ungerer <gerg@snapgear.com>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file COPYING in the main directory of this archive
+ * for more details.
+ */
+
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/io.h>
+#include <asm/traps.h>
+#include <asm/coldfire.h>
+#include <asm/mcfsim.h>
+
+static void intc_irq_mask(unsigned int irq)
+{
+}
+
+static void intc_irq_unmask(unsigned int irq)
+{
+}
+
+static int intc_irq_set_type(unsigned int irq, unsigned int type)
+{
+	return 0;
+}
+
+static struct irq_chip intc_irq_chip = {
+	.name		= "CF-INTC",
+	.mask		= intc_irq_mask,
+	.unmask		= intc_irq_unmask,
+	.set_type	= intc_irq_set_type,
+};
+
+void __init init_IRQ(void)
+{
+	int irq;
+
+	init_vectors();
+
+	for (irq = 0; (irq < NR_IRQS); irq++) {
+		irq_desc[irq].status = IRQ_DISABLED;
+		irq_desc[irq].action = NULL;
+		irq_desc[irq].depth = 1;
+		irq_desc[irq].chip = &intc_irq_chip;
+		intc_irq_set_type(irq, 0);
+	}
+}
+

arch/m68knommu/platform/coldfire/vectors.c

 /***************************************************************************/
 
 /*
- *	linux/arch/m68knommu/platform/5307/vectors.c
+ *	linux/arch/m68knommu/platform/coldfire/vectors.c
  *
  *	Copyright (C) 1999-2007, Greg Ungerer <gerg@snapgear.com>
  */
@@ -15,7 +15,6 @@
 #include <asm/machdep.h>
 #include <asm/coldfire.h>
 #include <asm/mcfsim.h>
-#include <asm/mcfdma.h>
 #include <asm/mcfwdebug.h>
 
 /***************************************************************************/
@@ -79,20 +78,3 @@ void __init init_vectors(void)
 }
 
 /***************************************************************************/
-
-void enable_vector(unsigned int irq)
-{
-	/* Currently no action on ColdFire */
-}
-
-void disable_vector(unsigned int irq)
-{
-	/* Currently no action on ColdFire */
-}
-
-void ack_vector(unsigned int irq)
-{
-	/* Currently no action on ColdFire */
-}
-
-/***************************************************************************/