ARM: s3c64xx: enable sparse IRQ support

This is another prerequisite for enabling multiplatform
support, and it is the part I am least certain about.

I assume it will cause the extra boot message "Cannot
allocate irq_descs @ IRQ%d, assuming pre-allocated" to
be printed, but otherwise work ok. This definitely needs
to be tested on real hardware to see if it works.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

1 files changed, 2 insertions, 1 deletions

diff --git a/arch/arm/mach-s3c64xx/mach-smdk6400.c b/arch/arm/mach-s3c64xx/mach-smdk6400.c
index 6f425126a735..7d8a74fd8915 100644
--- a/arch/arm/mach-s3c64xx/mach-smdk6400.c
+++ b/arch/arm/mach-s3c64xx/mach-smdk6400.c
@@ -27,6 +27,7 @@
 #include <asm/mach/map.h>
 #include <asm/mach/irq.h>
 
+#include <mach/irqs.h>
 #include <mach/hardware.h>
 #include <mach/map.h>
 
@@ -88,7 +89,7 @@ static void __init smdk6400_machine_init(void)
 MACHINE_START(SMDK6400, "SMDK6400")
         /* Maintainer: Ben Dooks <ben-linux@fluff.org> */
         .atag_offset    = 0x100,
-
+        .nr_irqs        = S3C64XX_NR_IRQS,
         .init_irq       = s3c6400_init_irq,
         .map_io         = smdk6400_map_io,
         .init_machine   = smdk6400_machine_init,