diff --git a/arch/sandbox/dts/test.dts b/arch/sandbox/dts/test.dts
index 4bccfbe6e1..9c00e94501 100644
--- a/arch/sandbox/dts/test.dts
+++ b/arch/sandbox/dts/test.dts
@@ -218,6 +218,24 @@
 		compatible = "denx,u-boot-fdt-test1";
 	};
 
+	i-test {
+		compatible = "mediatek,u-boot-fdt-test";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		subnode@0 {
+			reg = <0>;
+		};
+
+		subnode@1 {
+			reg = <1>;
+		};
+
+		subnode@2 {
+			reg = <2>;
+		};
+	};
+
 	devres-test {
 		compatible = "denx,u-boot-devres-test";
 	};
diff --git a/test/dm/ofnode.c b/test/dm/ofnode.c
index 1c49eaf38b..07d5c7d7a6 100644
--- a/test/dm/ofnode.c
+++ b/test/dm/ofnode.c
@@ -113,3 +113,24 @@ static int dm_test_ofnode_read_chosen(struct unit_test_state *uts)
 	return 0;
 }
 DM_TEST(dm_test_ofnode_read_chosen, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
+
+static int dm_test_ofnode_get_child_count(struct unit_test_state *uts)
+{
+	ofnode node, child_node;
+	u32 val;
+
+	node = ofnode_path("/i-test");
+	ut_assert(ofnode_valid(node));
+
+	val = ofnode_get_child_count(node);
+	ut_asserteq(3, val);
+
+	child_node = ofnode_first_subnode(node);
+	ut_assert(ofnode_valid(child_node));
+	val = ofnode_get_child_count(child_node);
+	ut_asserteq(0, val);
+
+	return 0;
+}
+DM_TEST(dm_test_ofnode_get_child_count,
+	DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);