ARM: OMAP3: Fix get_irqnr_and_base to clear spurious interrupt bits

[linux-2.6-omap-h63xx.git] / arch / arm / plat-omap / include / mach / entry-macro.S

diff --git a/arch/arm/plat-omap/include/mach/entry-macro.S b/arch/arm/plat-omap/include/mach/entry-macro.S
index a8fca9d9845b00102ba036958736452a78b89a54..47aa62c333e932c0f90bb236f74e3b7fe067c69b 100644 (file)
--- a/arch/arm/plat-omap/include/mach/entry-macro.S
+++ b/arch/arm/plat-omap/include/mach/entry-macro.S
@@ -65,7 +65,8 @@
 #include <mach/omap34xx.h>
 #endif
 
-#define INTCPS_SIR_IRQ_OFFSET  0x0040          /* Active interrupt number */
+#define INTCPS_SIR_IRQ_OFFSET  0x0040          /* Active interrupt offset */
+#define        ACTIVEIRQ_MASK          0x7f            /* Active interrupt bits */
 
                .macro  disable_fiq
                .endm
@@ -88,6 +89,7 @@
                cmp     \irqnr, #0x0
 2222:
                ldrne   \irqnr, [\base, #INTCPS_SIR_IRQ_OFFSET]
+               and     \irqnr, \irqnr, #ACTIVEIRQ_MASK /* Clear spurious bits */
 
                .endm