diff --git a/dts/arm/silabs/efm32_jg_pg_12b.dtsi b/dts/arm/silabs/efm32_jg_pg_12b.dtsi
index 90d75bbe0a8..f9e51e98ce2 100644
--- a/dts/arm/silabs/efm32_jg_pg_12b.dtsi
+++ b/dts/arm/silabs/efm32_jg_pg_12b.dtsi
@@ -178,6 +178,30 @@
 				gpio-controller;
 				#gpio-cells = <2>;
 			};
+
+			gpioi: gpio@4000a180 {
+				compatible = "silabs,efm32-gpio-port";
+				reg = <0x4000a180 0x30>;
+				label = "GPIO_I";
+				gpio-controller;
+				#gpio-cells = <2>;
+			};
+
+			gpioj: gpio@4000a1c0 {
+				compatible = "silabs,efm32-gpio-port";
+				reg = <0x4000a1c0 0x30>;
+				label = "GPIO_J";
+				gpio-controller;
+				#gpio-cells = <2>;
+			};
+
+			gpiok: gpio@4000a1f0 {
+				compatible = "silabs,efm32-gpio-port";
+				reg = <0x4000a1f0 0x30>;
+				label = "GPIO_K";
+				gpio-controller;
+				#gpio-cells = <2>;
+			};
 		};
 	};
 };
diff --git a/soc/arm/silabs_exx32/efm32jg12b/dts_fixup.h b/soc/arm/silabs_exx32/efm32jg12b/dts_fixup.h
index f72de756107..b1a483c6fa5 100644
--- a/soc/arm/silabs_exx32/efm32jg12b/dts_fixup.h
+++ b/soc/arm/silabs_exx32/efm32jg12b/dts_fixup.h
@@ -25,5 +25,9 @@
 #define DT_GPIO_GECKO_PORTD_NAME	DT_SILABS_EFM32_GPIO_PORT_4000A090_LABEL
 #define DT_GPIO_GECKO_PORTE_NAME	DT_SILABS_EFM32_GPIO_PORT_4000A0C0_LABEL
 #define DT_GPIO_GECKO_PORTF_NAME	DT_SILABS_EFM32_GPIO_PORT_4000A0F0_LABEL
+#define DT_GPIO_GECKO_PORTI_NAME	DT_SILABS_EFM32_GPIO_PORT_4000A180_LABEL
+#define DT_GPIO_GECKO_PORTJ_NAME	DT_SILABS_EFM32_GPIO_PORT_4000A1C0_LABEL
+#define DT_GPIO_GECKO_PORTK_NAME	DT_SILABS_EFM32_GPIO_PORT_4000A1F0_LABEL
+
 
 /* End of SoC Level DTS fixup file */
diff --git a/soc/arm/silabs_exx32/efm32pg12b/dts_fixup.h b/soc/arm/silabs_exx32/efm32pg12b/dts_fixup.h
index 7fea7bed0eb..64b5703941d 100644
--- a/soc/arm/silabs_exx32/efm32pg12b/dts_fixup.h
+++ b/soc/arm/silabs_exx32/efm32pg12b/dts_fixup.h
@@ -25,5 +25,8 @@
 #define DT_GPIO_GECKO_PORTD_NAME	DT_SILABS_EFM32_GPIO_PORT_4000A090_LABEL
 #define DT_GPIO_GECKO_PORTE_NAME	DT_SILABS_EFM32_GPIO_PORT_4000A0C0_LABEL
 #define DT_GPIO_GECKO_PORTF_NAME	DT_SILABS_EFM32_GPIO_PORT_4000A0F0_LABEL
+#define DT_GPIO_GECKO_PORTI_NAME	DT_SILABS_EFM32_GPIO_PORT_4000A180_LABEL
+#define DT_GPIO_GECKO_PORTJ_NAME	DT_SILABS_EFM32_GPIO_PORT_4000A1C0_LABEL
+#define DT_GPIO_GECKO_PORTK_NAME	DT_SILABS_EFM32_GPIO_PORT_4000A1F0_LABEL
 
 /* End of SoC Level DTS fixup file */