diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index bfcec8d9bfe4bb4f202bf61c501f49738e12611c..d3e087115023ad0ef6867b5bd12c504ac3b070c5 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -488,6 +488,9 @@ static inline void resource_init(void)
 {
 	int i;
 
+	if (UNCAC_BASE != IO_BASE)
+		return;
+
 	code_resource.start = virt_to_phys(&_text);
 	code_resource.end = virt_to_phys(&_etext) - 1;
 	data_resource.start = virt_to_phys(&_etext);