ARM: orion: use SPARSE_IRQ everywhere

As a preparation for multiplatform support, this moves all the
code using plat-orion over to use sparse irq support, which is
enabled implicitly for multiplatform.

In particular, the hardcoded NR_IRQS macro gets replaced with
a machine specific one that is set in the machine descriptor
in order to set up a static mapping for all legacy interrupts.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>

6 files changed, 7 insertions, 3 deletions

diff --git a/arch/arm/mach-dove/cm-a510.c b/arch/arm/mach-dove/cm-a510.c
index 0dc39cf30fdd..b9a7c33db29a 100644
--- a/arch/arm/mach-dove/cm-a510.c
+++ b/arch/arm/mach-dove/cm-a510.c
@@ -88,6 +88,7 @@ static void __init cm_a510_init(void)
 
 MACHINE_START(CM_A510, "Compulab CM-A510 Board")
 	.atag_offset	= 0x100,
+	.nr_irqs	= DOVE_NR_IRQS,
 	.init_machine	= cm_a510_init,
 	.map_io		= dove_map_io,
 	.init_early	= dove_init_early,
diff --git a/arch/arm/mach-dove/dove-db-setup.c b/arch/arm/mach-dove/dove-db-setup.c
index 76e26f949c27..bcb678fd2415 100644
--- a/arch/arm/mach-dove/dove-db-setup.c
+++ b/arch/arm/mach-dove/dove-db-setup.c
@@ -94,6 +94,7 @@ static void __init dove_db_init(void)
 
 MACHINE_START(DOVE_DB, "Marvell DB-MV88AP510-BP Development Board")
 	.atag_offset	= 0x100,
+	.nr_irqs	= DOVE_NR_IRQS,
 	.init_machine	= dove_db_init,
 	.map_io		= dove_map_io,
 	.init_early	= dove_init_early,
diff --git a/arch/arm/mach-dove/include/mach/dove.h b/arch/arm/mach-dove/include/mach/dove.h
index 0c4b35f4ee5b..00f45458b3ec 100644
--- a/arch/arm/mach-dove/include/mach/dove.h
+++ b/arch/arm/mach-dove/include/mach/dove.h
@@ -11,6 +11,8 @@
 #ifndef __ASM_ARCH_DOVE_H
 #define __ASM_ARCH_DOVE_H
 
+#include <mach/irqs.h>
+
 /*
  * Marvell Dove address maps.
  *
diff --git a/arch/arm/mach-dove/include/mach/irqs.h b/arch/arm/mach-dove/include/mach/irqs.h
index 3f29e6bca058..8ff0fa8b4fcd 100644
--- a/arch/arm/mach-dove/include/mach/irqs.h
+++ b/arch/arm/mach-dove/include/mach/irqs.h
@@ -90,7 +90,7 @@
 #define NR_PMU_IRQS		7
 #define IRQ_DOVE_RTC		(IRQ_DOVE_PMU_START + 5)
 
-#define NR_IRQS			(IRQ_DOVE_PMU_START + NR_PMU_IRQS)
+#define DOVE_NR_IRQS		(IRQ_DOVE_PMU_START + NR_PMU_IRQS)
 
 
 #endif
diff --git a/arch/arm/mach-dove/include/mach/pm.h b/arch/arm/mach-dove/include/mach/pm.h
index b47f75038686..9834ba10cd13 100644
--- a/arch/arm/mach-dove/include/mach/pm.h
+++ b/arch/arm/mach-dove/include/mach/pm.h
@@ -63,7 +63,7 @@ static inline int pmu_to_irq(int pin)
 
 static inline int irq_to_pmu(int irq)
 {
-	if (IRQ_DOVE_PMU_START <= irq && irq < NR_IRQS)
+	if (IRQ_DOVE_PMU_START <= irq && irq < DOVE_NR_IRQS)
 		return irq - IRQ_DOVE_PMU_START;
 
 	return -EINVAL;
diff --git a/arch/arm/mach-dove/irq.c b/arch/arm/mach-dove/irq.c
index b1c7cae1486b..ad785d34c1e7 100644
--- a/arch/arm/mach-dove/irq.c
+++ b/arch/arm/mach-dove/irq.c
@@ -160,7 +160,7 @@ void __init dove_init_irq(void)
 	writel(0, PMU_INTERRUPT_MASK);
 	writel(0, PMU_INTERRUPT_CAUSE);
 
-	for (i = IRQ_DOVE_PMU_START; i < NR_IRQS; i++) {
+	for (i = IRQ_DOVE_PMU_START; i < DOVE_NR_IRQS; i++) {
 		irq_set_chip_and_handler(i, &pmu_irq_chip, handle_level_irq);
 		irq_set_status_flags(i, IRQ_LEVEL);
 		irq_clear_status_flags(i, IRQ_NOREQUEST);