diff --git a/arch/arm64/src/common/arm64_gicv3.c b/arch/arm64/src/common/arm64_gicv3.c
index 49b9d51335..81fe66bb49 100644
--- a/arch/arm64/src/common/arm64_gicv3.c
+++ b/arch/arm64/src/common/arm64_gicv3.c
@@ -1004,3 +1004,16 @@ void up_send_smp_call(cpu_set_t cpuset)
 }
 #  endif
 #endif
+
+/***************************************************************************
+ * Name: up_get_legacy_irq
+ *
+ * Description:
+ *   Reserve vector for legacy
+ *
+ ***************************************************************************/
+
+int up_get_legacy_irq(uint32_t devfn, uint8_t line, uint8_t pin)
+{
+  return -ENOTSUP;
+}