diff --git a/arch/powerpc/sysdev/ipic.c b/arch/powerpc/sysdev/ipic.c
index 16f1edd78c40e52a126e2d40f70242e3f6c82533..535cf1f6941c01fd1b2b70b7e630cf2f8fea0e64 100644
--- a/arch/powerpc/sysdev/ipic.c
+++ b/arch/powerpc/sysdev/ipic.c
@@ -846,12 +846,12 @@ void ipic_disable_mcp(enum ipic_mcp_irq mcp_irq)
 
 u32 ipic_get_mcp_status(void)
 {
-	return ipic_read(primary_ipic->regs, IPIC_SERMR);
+	return ipic_read(primary_ipic->regs, IPIC_SERSR);
 }
 
 void ipic_clear_mcp_status(u32 mask)
 {
-	ipic_write(primary_ipic->regs, IPIC_SERMR, mask);
+	ipic_write(primary_ipic->regs, IPIC_SERSR, mask);
 }
 
 /* Return an interrupt vector or 0 if no interrupt is pending. */