diff --git a/include/arm11/hardware/mcu.h b/include/arm11/hardware/mcu.h
index 89ff014..d4dde5b 100644
--- a/include/arm11/hardware/mcu.h
+++ b/include/arm11/hardware/mcu.h
@@ -22,6 +22,7 @@
 
 
 
+void MCU_init(void);
 void MCU_disableLEDs(void);
 void MCU_powerOnLCDs(void);
 void MCU_powerOffLCDs(void);
diff --git a/source/arm11/hardware/i2c.c b/source/arm11/hardware/i2c.c
index e9ceae1..156a647 100644
--- a/source/arm11/hardware/i2c.c
+++ b/source/arm11/hardware/i2c.c
@@ -93,6 +93,12 @@
 
 void I2C_init(void)
 {
+	static bool initialized;
+	
+	/* run-once */
+	if(initialized)
+		return;
+
 	I2cRegs *regs = i2cGetBusRegsBase(0); // Bus 1
 	i2cWaitBusy(regs);
 	regs->REG_I2C_CNTEX = 2;  // ?
@@ -107,6 +113,8 @@
 	i2cWaitBusy(regs);
 	regs->REG_I2C_CNTEX = 2;  // ?
 	regs->REG_I2C_SCL = 1280; // ?
+	
+	initialized = true;
 }
 
 static bool i2cStartTransfer(I2cDevice devId, u8 regAddr, bool read, I2cRegs *const regs)
diff --git a/source/arm11/hardware/mcu.c b/source/arm11/hardware/mcu.c
index 81bb220..7e1b5aa 100644
--- a/source/arm11/hardware/mcu.c
+++ b/source/arm11/hardware/mcu.c
@@ -38,6 +38,11 @@
 
 
 
+void MCU_init(void)
+{
+	I2C_init();
+}
+
 void MCU_disableLEDs(void)
 {
 	// disable wifi LED
diff --git a/source/arm11/system.c b/source/arm11/system.c
index 02c5ad5..32f45cc 100644
--- a/source/arm11/system.c
+++ b/source/arm11/system.c
@@ -42,6 +42,7 @@
 		I2C_init();
 		hidInit();
 		PXI_init();
+		MCU_init();
 		systemRestoreHwState();
 	}
 	else