diff --git a/arch/powerpc/platforms/85xx/ge_imp3a.c b/arch/powerpc/platforms/85xx/ge_imp3a.c
index 11790e074c8a..55eefef0c0c7 100644
--- a/arch/powerpc/platforms/85xx/ge_imp3a.c
+++ b/arch/powerpc/platforms/85xx/ge_imp3a.c
@@ -47,9 +47,8 @@ void __init ge_imp3a_pic_init(void)
 	struct mpic *mpic;
 	struct device_node *np;
 	struct device_node *cascade_node = NULL;
-	unsigned long root = of_get_flat_dt_root();
 
-	if (of_flat_dt_is_compatible(root, "fsl,MPC8572DS-CAMP")) {
+	if (of_machine_is_compatible("fsl,MPC8572DS-CAMP")) {
 		mpic = mpic_alloc(NULL, 0,
 			MPIC_NO_RESET |
 			MPIC_BIG_ENDIAN |