diff --git a/hw/alpha_dp264.c b/hw/alpha_dp264.c
index 876335a..4c0efd3 100644
--- a/hw/alpha_dp264.c
+++ b/hw/alpha_dp264.c
@@ -14,6 +14,7 @@
 #include "sysemu.h"
 #include "mc146818rtc.h"
 #include "ide.h"
+#include "i8254.h"
 
 #define MAX_IDE_BUS 2
 
diff --git a/hw/hpet.c b/hw/hpet.c
index 39b291f..c921ec9 100644
--- a/hw/hpet.c
+++ b/hw/hpet.c
@@ -31,6 +31,7 @@
 #include "hpet_emul.h"
 #include "sysbus.h"
 #include "mc146818rtc.h"
+#include "i8254.h"
 
 //#define HPET_DEBUG
 #ifdef HPET_DEBUG
diff --git a/hw/i82378.c b/hw/i82378.c
index 99b453a..652970e 100644
--- a/hw/i82378.c
+++ b/hw/i82378.c
@@ -19,6 +19,7 @@
 
 #include "pci.h"
 #include "pc.h"
+#include "i8254.h"
 
 //#define DEBUG_I82378
 
diff --git a/hw/i8254.c b/hw/i8254.c
index d4a08d7..df83880 100644
--- a/hw/i8254.c
+++ b/hw/i8254.c
@@ -25,6 +25,7 @@
 #include "pc.h"
 #include "isa.h"
 #include "qemu-timer.h"
+#include "i8254.h"
 
 //#define DEBUG_PIT
 
diff --git a/hw/i8254.h b/hw/i8254.h
new file mode 100644
index 0000000..cd3111c
--- /dev/null
+++ b/hw/i8254.h
@@ -0,0 +1,54 @@
+/*
+ * QEMU 8253/8254 interval timer emulation
+ *
+ * Copyright (c) 2003-2004 Fabrice Bellard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef HW_I8254_H
+#define HW_I8254_H
+
+#include "hw.h"
+#include "isa.h"
+
+#define PIT_FREQ 1193182
+
+static inline ISADevice *pit_init(ISABus *bus, int base, int irq)
+{
+    ISADevice *dev;
+
+    dev = isa_create(bus, "isa-pit");
+    qdev_prop_set_uint32(&dev->qdev, "iobase", base);
+    qdev_prop_set_uint32(&dev->qdev, "irq", irq);
+    qdev_init_nofail(&dev->qdev);
+
+    return dev;
+}
+
+void pit_set_gate(ISADevice *dev, int channel, int val);
+int pit_get_gate(ISADevice *dev, int channel);
+int pit_get_initial_count(ISADevice *dev, int channel);
+int pit_get_mode(ISADevice *dev, int channel);
+int pit_get_out(ISADevice *dev, int channel, int64_t current_time);
+
+void hpet_pit_disable(void);
+void hpet_pit_enable(void);
+
+#endif /* !HW_I8254_H */
diff --git a/hw/mips_fulong2e.c b/hw/mips_fulong2e.c
index 163a668..ead72ae 100644
--- a/hw/mips_fulong2e.c
+++ b/hw/mips_fulong2e.c
@@ -40,6 +40,7 @@
 #include "elf.h"
 #include "vt82c686.h"
 #include "mc146818rtc.h"
+#include "i8254.h"
 #include "blockdev.h"
 #include "exec-memory.h"
 
diff --git a/hw/mips_jazz.c b/hw/mips_jazz.c
index 63165b9..61dee4d 100644
--- a/hw/mips_jazz.c
+++ b/hw/mips_jazz.c
@@ -36,6 +36,7 @@
 #include "mips-bios.h"
 #include "loader.h"
 #include "mc146818rtc.h"
+#include "i8254.h"
 #include "blockdev.h"
 #include "sysbus.h"
 #include "exec-memory.h"
diff --git a/hw/mips_malta.c b/hw/mips_malta.c
index 64603ce..32f9f65 100644
--- a/hw/mips_malta.c
+++ b/hw/mips_malta.c
@@ -45,6 +45,7 @@
 #include "loader.h"
 #include "elf.h"
 #include "mc146818rtc.h"
+#include "i8254.h"
 #include "blockdev.h"
 #include "exec-memory.h"
 #include "sysbus.h"             /* SysBusDevice */
diff --git a/hw/mips_r4k.c b/hw/mips_r4k.c
index 1c0615c..1b3ec2d 100644
--- a/hw/mips_r4k.c
+++ b/hw/mips_r4k.c
@@ -22,6 +22,7 @@
 #include "loader.h"
 #include "elf.h"
 #include "mc146818rtc.h"
+#include "i8254.h"
 #include "blockdev.h"
 #include "exec-memory.h"
 
diff --git a/hw/pc.c b/hw/pc.c
index 31608d3..080a731 100644
--- a/hw/pc.c
+++ b/hw/pc.c
@@ -36,6 +36,7 @@
 #include "elf.h"
 #include "multiboot.h"
 #include "mc146818rtc.h"
+#include "i8254.h"
 #include "msi.h"
 #include "sysbus.h"
 #include "sysemu.h"
diff --git a/hw/pc.h b/hw/pc.h
index c666ec9..b08708d 100644
--- a/hw/pc.h
+++ b/hw/pc.h
@@ -81,31 +81,6 @@ typedef struct GSIState {
 
 void gsi_handler(void *opaque, int n, int level);
 
-/* i8254.c */
-
-#define PIT_FREQ 1193182
-
-static inline ISADevice *pit_init(ISABus *bus, int base, int irq)
-{
-    ISADevice *dev;
-
-    dev = isa_create(bus, "isa-pit");
-    qdev_prop_set_uint32(&dev->qdev, "iobase", base);
-    qdev_prop_set_uint32(&dev->qdev, "irq", irq);
-    qdev_init_nofail(&dev->qdev);
-
-    return dev;
-}
-
-void pit_set_gate(ISADevice *dev, int channel, int val);
-int pit_get_gate(ISADevice *dev, int channel);
-int pit_get_initial_count(ISADevice *dev, int channel);
-int pit_get_mode(ISADevice *dev, int channel);
-int pit_get_out(ISADevice *dev, int channel, int64_t current_time);
-
-void hpet_pit_disable(void);
-void hpet_pit_enable(void);
-
 /* vmport.c */
 static inline void vmport_init(ISABus *bus)
 {
diff --git a/hw/pcspk.c b/hw/pcspk.c
index acb0167..43df818 100644
--- a/hw/pcspk.c
+++ b/hw/pcspk.c
@@ -27,6 +27,7 @@
 #include "isa.h"
 #include "audio/audio.h"
 #include "qemu-timer.h"
+#include "i8254.h"
 
 #define PCSPK_BUF_LEN 1792
 #define PCSPK_SAMPLE_RATE 32000
