MIPS: ralink: add PCI IRQ handling

The Ralink IRQ code was not handling the PCI IRQ yet. Add this functionaility
to make PCI work on rt3883.

Signed-off-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/5165/

1 files changed, 4 insertions, 0 deletions

diff --git a/arch/mips/ralink/irq.c b/arch/mips/ralink/irq.c
index 6d054c5ec9ab..d9807d0587cd 100644
--- a/arch/mips/ralink/irq.c
+++ b/arch/mips/ralink/irq.c
@@ -31,6 +31,7 @@
 #define INTC_INT_GLOBAL         BIT(31)
 
 #define RALINK_CPU_IRQ_INTC     (MIPS_CPU_IRQ_BASE + 2)
+#define RALINK_CPU_IRQ_PCI      (MIPS_CPU_IRQ_BASE + 4)
 #define RALINK_CPU_IRQ_FE       (MIPS_CPU_IRQ_BASE + 5)
 #define RALINK_CPU_IRQ_WIFI     (MIPS_CPU_IRQ_BASE + 6)
 #define RALINK_CPU_IRQ_COUNTER  (MIPS_CPU_IRQ_BASE + 7)
@@ -104,6 +105,9 @@ asmlinkage void plat_irq_dispatch(void)
         else if (pending & STATUSF_IP6)
                 do_IRQ(RALINK_CPU_IRQ_WIFI);
 
+        else if (pending & STATUSF_IP4)
+                do_IRQ(RALINK_CPU_IRQ_PCI);
+
         else if (pending & STATUSF_IP2)
                 do_IRQ(RALINK_CPU_IRQ_INTC);