[ARM] pxa: initialize default interrupt priority and use ICHP for IRQ handling
Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
diff --git a/arch/arm/mach-pxa/irq.c b/arch/arm/mach-pxa/irq.c
index f6e0300..d694ce2 100644
--- a/arch/arm/mach-pxa/irq.c
+++ b/arch/arm/mach-pxa/irq.c
@@ -120,7 +120,7 @@
void __init pxa_init_irq(int irq_nr, set_wake_t fn)
{
- int irq;
+ int irq, i;
pxa_internal_irq_nr = irq_nr;
@@ -129,6 +129,12 @@
_ICLR(irq) = 0; /* all IRQs are IRQ, not FIQ */
}
+ /* initialize interrupt priority */
+ if (cpu_is_pxa27x() || cpu_is_pxa3xx()) {
+ for (i = 0; i < irq_nr; i++)
+ IPR(i) = i | (1 << 31);
+ }
+
/* only unmasked interrupts kick us out of idle */
ICCR = 1;