diff --git a/board/czechlight/clearfog/czechlight-clearfog.dts b/board/czechlight/clearfog/czechlight-clearfog.dts
index e690045..983773c 100644
--- a/board/czechlight/clearfog/czechlight-clearfog.dts
+++ b/board/czechlight/clearfog/czechlight-clearfog.dts
@@ -40,6 +40,23 @@
 			};
 		};
 	};
+
+	gpio_i2c {
+		compatible = "i2c-gpio";
+		sda-gpios = <&gpio0 25 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+		scl-gpios = <&gpio0 24 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+		i2c-gpio.delay-us = <1>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+	};
+};
+
+&uart1_pins {
+	status = "disabled";
+};
+
+&uart1 {
+	status = "disabled";
 };
 
 &gpio1 {
diff --git a/board/czechlight/clearfog/linux.fragment b/board/czechlight/clearfog/linux.fragment
index b2db091..724d3c5 100644
--- a/board/czechlight/clearfog/linux.fragment
+++ b/board/czechlight/clearfog/linux.fragment
@@ -14,3 +14,6 @@
 
 # SPI-to-Quad-UART
 CONFIG_SERIAL_MAX310X=y
+
+# Extra I2C bus for the PSUs
+CONFIG_I2C_GPIO=y