1 files changed, 3 insertions, 0 deletions

diff --git a/arch/powerpc/sysdev/ipic.c b/arch/powerpc/sysdev/ipic.c
index 69e2630c9062..ebb7e5844012 100644
--- a/arch/powerpc/sysdev/ipic.c
+++ b/arch/powerpc/sysdev/ipic.c
@@ -781,6 +781,9 @@ struct ipic * __init ipic_init(struct device_node *node, unsigned int flags)
         primary_ipic = ipic;
         irq_set_default_host(primary_ipic->irqhost);
 
+        ipic_write(ipic->regs, IPIC_SIMSR_H, 0);
+        ipic_write(ipic->regs, IPIC_SIMSR_L, 0);
+
         printk ("IPIC (%d IRQ sources) at %p\n", NR_IPIC_INTS,
                         primary_ipic->regs);