diff --git a/arch/openrisc/kernel/setup.c b/arch/openrisc/kernel/setup.c
index b29aa3237e76..766ad9797200 100644
--- a/arch/openrisc/kernel/setup.c
+++ b/arch/openrisc/kernel/setup.c
@@ -266,6 +266,9 @@ void calibrate_delay(void)
 
 void __init setup_arch(char **cmdline_p)
 {
+	/* setup memblock allocator */
+	setup_memory();
+
 	unflatten_and_copy_device_tree();
 
 	setup_cpuinfo();
@@ -286,9 +289,6 @@ void __init setup_arch(char **cmdline_p)
 	initrd_below_start_ok = 1;
 #endif
 
-	/* setup memblock allocator */
-	setup_memory();
-
 	/* paging_init() sets up the MMU and marks all pages as reserved */
 	paging_init();