diff --git a/hw/timer/cmsdk-apb-timer.c b/hw/timer/cmsdk-apb-timer.c
index ae9c54225408..c63145ff5531 100644
--- a/hw/timer/cmsdk-apb-timer.c
+++ b/hw/timer/cmsdk-apb-timer.c
@@ -35,6 +35,7 @@
 #include "hw/sysbus.h"
 #include "hw/irq.h"
 #include "hw/registerfields.h"
+#include "hw/qdev-clock.h"
 #include "hw/timer/cmsdk-apb-timer.h"
 #include "migration/vmstate.h"
 
@@ -212,6 +213,7 @@ static void cmsdk_apb_timer_init(Object *obj)
                           s, "cmsdk-apb-timer", 0x1000);
     sysbus_init_mmio(sbd, &s->iomem);
     sysbus_init_irq(sbd, &s->timerint);
+    s->pclk = qdev_init_clock_in(DEVICE(s), "pclk", NULL, NULL);
 }
 
 static void cmsdk_apb_timer_realize(DeviceState *dev, Error **errp)
@@ -236,10 +238,11 @@ static void cmsdk_apb_timer_realize(DeviceState *dev, Error **errp)
 
 static const VMStateDescription cmsdk_apb_timer_vmstate = {
     .name = "cmsdk-apb-timer",
-    .version_id = 1,
-    .minimum_version_id = 1,
+    .version_id = 2,
+    .minimum_version_id = 2,
     .fields = (VMStateField[]) {
         VMSTATE_PTIMER(timer, CMSDKAPBTimer),
+        VMSTATE_CLOCK(pclk, CMSDKAPBTimer),
         VMSTATE_UINT32(ctrl, CMSDKAPBTimer),
         VMSTATE_UINT32(value, CMSDKAPBTimer),
         VMSTATE_UINT32(reload, CMSDKAPBTimer),
diff --git a/include/hw/timer/cmsdk-apb-timer.h b/include/hw/timer/cmsdk-apb-timer.h
index baa009bb2dae..fc2aa97acaca 100644
--- a/include/hw/timer/cmsdk-apb-timer.h
+++ b/include/hw/timer/cmsdk-apb-timer.h
@@ -15,11 +15,19 @@
 #include "hw/qdev-properties.h"
 #include "hw/sysbus.h"
 #include "hw/ptimer.h"
+#include "hw/clock.h"
 #include "qom/object.h"
 
 #define TYPE_CMSDK_APB_TIMER "cmsdk-apb-timer"
 OBJECT_DECLARE_SIMPLE_TYPE(CMSDKAPBTimer, CMSDK_APB_TIMER)
 
+/*
+ * QEMU interface:
+ *  + QOM property "pclk-frq": frequency at which the timer is clocked
+ *  + Clock input "pclk": clock for the timer
+ *  + sysbus MMIO region 0: the register bank
+ *  + sysbus IRQ 0: timer interrupt TIMERINT
+ */
 struct CMSDKAPBTimer {
     /*< private >*/
     SysBusDevice parent_obj;
@@ -29,6 +37,7 @@ struct CMSDKAPBTimer {
     qemu_irq timerint;
     uint32_t pclk_frq;
     struct ptimer_state *timer;
+    Clock *pclk;
 
     uint32_t ctrl;
     uint32_t value;