diff --git a/tools/dtoc/dtoc_test_simple.dts b/tools/dtoc/dtoc_test_simple.dts
index c736686..6afe674 100644
--- a/tools/dtoc/dtoc_test_simple.dts
+++ b/tools/dtoc/dtoc_test_simple.dts
@@ -9,6 +9,8 @@
  /dts-v1/;
 
 / {
+	#address-cells = <1>;
+	#size-cells = <1>;
 	spl-test {
 		u-boot,dm-pre-reloc;
 		compatible = "sandbox,spl-test";
@@ -45,4 +47,16 @@
 		compatible = "sandbox,spl-test.2";
 	};
 
+	i2c@0 {
+		compatible = "sandbox,i2c-test";
+		u-boot,dm-pre-reloc;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		pmic@9 {
+			compatible = "sandbox,pmic-test";
+			u-boot,dm-pre-reloc;
+			reg = <9>;
+			low-power;
+		};
+	};
 };
diff --git a/tools/dtoc/test_dtoc.py b/tools/dtoc/test_dtoc.py
index 09cfdda..62460ac 100644
--- a/tools/dtoc/test_dtoc.py
+++ b/tools/dtoc/test_dtoc.py
@@ -121,6 +121,12 @@
             data = infile.read()
         self.assertEqual('''#include <stdbool.h>
 #include <libfdt.h>
+struct dtd_sandbox_i2c_test {
+};
+struct dtd_sandbox_pmic_test {
+\tbool\t\tlow_power;
+\tfdt64_t\t\treg[2];
+};
 struct dtd_sandbox_spl_test {
 \tbool\t\tboolval;
 \tunsigned char\tbytearray[3];
@@ -192,6 +198,24 @@
 \t.platdata_size\t= sizeof(dtv_spl_test4),
 };
 
+static struct dtd_sandbox_i2c_test dtv_i2c_at_0 = {
+};
+U_BOOT_DEVICE(i2c_at_0) = {
+\t.name\t\t= "sandbox_i2c_test",
+\t.platdata\t= &dtv_i2c_at_0,
+\t.platdata_size\t= sizeof(dtv_i2c_at_0),
+};
+
+static struct dtd_sandbox_pmic_test dtv_pmic_at_9 = {
+\t.low_power\t\t= true,
+\t.reg\t\t\t= {0x9, 0x0},
+};
+U_BOOT_DEVICE(pmic_at_9) = {
+\t.name\t\t= "sandbox_pmic_test",
+\t.platdata\t= &dtv_pmic_at_9,
+\t.platdata_size\t= sizeof(dtv_pmic_at_9),
+};
+
 ''', data)
 
     def test_phandle(self):