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authorGreg Ungerer <gerg@uclinux.org>2009-04-30 16:22:24 +1000
committerGreg Ungerer <gerg@uclinux.org>2009-09-16 09:43:44 +1000
commit33a21263bf74177209c11f08246fc308916d9ffa (patch)
treee17343a09cb5f0a0faaeb2985b91368cc32cbda1 /arch/m68knommu
parent6589c1d71581618dfc344628fb425ee4f09ce904 (diff)
downloadop-kernel-dev-33a21263bf74177209c11f08246fc308916d9ffa.zip
op-kernel-dev-33a21263bf74177209c11f08246fc308916d9ffa.tar.gz
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: Greg Ungerer <gerg@uclinux.org>
Diffstat (limited to 'arch/m68knommu')
-rw-r--r--arch/m68knommu/kernel/irq.c4
-rw-r--r--arch/m68knommu/platform/coldfire/Makefile12
-rw-r--r--arch/m68knommu/platform/coldfire/intc.c55
-rw-r--r--arch/m68knommu/platform/coldfire/vectors.c20
4 files changed, 63 insertions, 28 deletions
diff --git a/arch/m68knommu/kernel/irq.c b/arch/m68knommu/kernel/irq.c
index 93d567b..73daaf0 100644
--- a/arch/m68knommu/kernel/irq.c
+++ b/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",
diff --git a/arch/m68knommu/platform/coldfire/Makefile b/arch/m68knommu/platform/coldfire/Makefile
index 6c5f699..24ea95a 100644
--- a/arch/m68knommu/platform/coldfire/Makefile
+++ b/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
diff --git a/arch/m68knommu/platform/coldfire/intc.c b/arch/m68knommu/platform/coldfire/intc.c
new file mode 100644
index 0000000..c81ab6e
--- /dev/null
+++ b/arch/m68knommu/platform/coldfire/intc.c
@@ -0,0 +1,55 @@
+/*
+ * 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);
+ }
+}
+
diff --git a/arch/m68knommu/platform/coldfire/vectors.c b/arch/m68knommu/platform/coldfire/vectors.c
index bdca029..a21d3f8 100644
--- a/arch/m68knommu/platform/coldfire/vectors.c
+++ b/arch/m68knommu/platform/coldfire/vectors.c
@@ -1,7 +1,7 @@
/***************************************************************************/
/*
- * 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 */
-}
-
-/***************************************************************************/
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