diff --git a/include/mgba/internal/gba/hardware.h b/include/mgba/internal/gba/hardware.h
index 0edb89003..c2a3f655f 100644
--- a/include/mgba/internal/gba/hardware.h
+++ b/include/mgba/internal/gba/hardware.h
@@ -177,7 +177,6 @@ struct GBACartridgeHardware {
 
 void GBAHardwareInit(struct GBACartridgeHardware* gpio, uint16_t* gpioBase);
 void GBAHardwareClear(struct GBACartridgeHardware* gpio);
-int32_t GBAHardwareProcessEvents(struct GBA* gba, int32_t cycles);
 
 void GBAHardwareInitRTC(struct GBACartridgeHardware* gpio);
 void GBAHardwareInitGyro(struct GBACartridgeHardware* gpio);
diff --git a/src/gba/hardware.c b/src/gba/hardware.c
index 9ac10dbe6..bd23dfa63 100644
--- a/src/gba/hardware.c
+++ b/src/gba/hardware.c
@@ -40,7 +40,6 @@ static void _eReaderReset(struct GBACartridgeHardware* hw);
 static void _eReaderWriteControl0(struct GBACartridgeHardware* hw, uint8_t value);
 static void _eReaderWriteControl1(struct GBACartridgeHardware* hw, uint8_t value);
 static void _eReaderReadData(struct GBACartridgeHardware* hw);
-static int32_t _eReaderProcessEvents(struct GBACartridgeHardware* hw, int32_t cycles);
 
 static const int RTC_BYTES[8] = {
 	0, // Force reset
@@ -82,13 +81,6 @@ void GBAHardwareClear(struct GBACartridgeHardware* hw) {
 	}
 }
 
-int32_t GBAHardwareProcessEvents(struct GBA* gba, int32_t cycles) {
-	if (gba->memory.hw.devices & HW_EREADER) {
-		return _eReaderProcessEvents(&gba->memory.hw, cycles);
-	}
-	return INT_MAX;
-}
-
 void GBAHardwareGPIOWrite(struct GBACartridgeHardware* hw, uint32_t address, uint16_t value) {
 	if (!hw->gpioBase) {
 		return;
@@ -795,17 +787,6 @@ void _eReaderReadData(struct GBACartridgeHardware* hw) {
 	}
 }
 
-static int32_t _eReaderProcessEvents(struct GBACartridgeHardware* hw, int32_t cycles) {
-	if (hw->eReaderState != EREADER_SERIAL_INACTIVE) {
-		hw->eReaderDelay += cycles;
-		if (hw->eReaderDelay > 1024) {
-			mLOG(GBA_HW, DEBUG, "[e-Reader] Command timed out");
-			hw->eReaderState = EREADER_SERIAL_INACTIVE;
-		}
-	}
-	return INT_MAX;
-}
-
 // == Serialization
 
 void GBAHardwareSerialize(const struct GBACartridgeHardware* hw, struct GBASerializedState* state) {