diff --git a/hw/m68k/q800.c b/hw/m68k/q800.c
index 4ca8678007..8f3eb6bfe7 100644
--- a/hw/m68k/q800.c
+++ b/hw/m68k/q800.c
@@ -239,7 +239,8 @@ static void q800_init(MachineState *machine)
     qdev_set_nic_properties(dev, &nd_table[0]);
     qdev_prop_set_uint8(dev, "it_shift", 2);
     qdev_prop_set_bit(dev, "big_endian", true);
-    qdev_prop_set_ptr(dev, "dma_mr", get_system_memory());
+    object_property_set_link(OBJECT(dev), OBJECT(get_system_memory()),
+                             "dma_mr", &error_abort);
     qdev_init_nofail(dev);
     sysbus = SYS_BUS_DEVICE(dev);
     sysbus_mmio_map(sysbus, 0, SONIC_BASE);
diff --git a/hw/mips/mips_jazz.c b/hw/mips/mips_jazz.c
index 291fd6c1b8..66fd4d867d 100644
--- a/hw/mips/mips_jazz.c
+++ b/hw/mips/mips_jazz.c
@@ -290,7 +290,8 @@ static void mips_jazz_init(MachineState *machine,
             dev = qdev_create(NULL, "dp8393x");
             qdev_set_nic_properties(dev, nd);
             qdev_prop_set_uint8(dev, "it_shift", 2);
-            qdev_prop_set_ptr(dev, "dma_mr", rc4030_dma_mr);
+            object_property_set_link(OBJECT(dev), OBJECT(rc4030_dma_mr),
+                                     "dma_mr", &error_abort);
             qdev_init_nofail(dev);
             sysbus = SYS_BUS_DEVICE(dev);
             sysbus_mmio_map(sysbus, 0, 0x80001000);
diff --git a/hw/net/dp8393x.c b/hw/net/dp8393x.c
index 3d991af163..cdc2631c0c 100644
--- a/hw/net/dp8393x.c
+++ b/hw/net/dp8393x.c
@@ -175,7 +175,7 @@ typedef struct dp8393xState {
     int loopback_packet;
 
     /* Memory access */
-    void *dma_mr;
+    MemoryRegion *dma_mr;
     AddressSpace as;
 } dp8393xState;
 
@@ -948,7 +948,8 @@ static const VMStateDescription vmstate_dp8393x = {
 
 static Property dp8393x_properties[] = {
     DEFINE_NIC_PROPERTIES(dp8393xState, conf),
-    DEFINE_PROP_PTR("dma_mr", dp8393xState, dma_mr),
+    DEFINE_PROP_LINK("dma_mr", dp8393xState, dma_mr,
+                     TYPE_MEMORY_REGION, MemoryRegion *),
     DEFINE_PROP_UINT8("it_shift", dp8393xState, it_shift, 0),
     DEFINE_PROP_BOOL("big_endian", dp8393xState, big_endian, false),
     DEFINE_PROP_END_OF_LIST(),
@@ -963,8 +964,6 @@ static void dp8393x_class_init(ObjectClass *klass, void *data)
     dc->reset = dp8393x_reset;
     dc->vmsd = &vmstate_dp8393x;
     dc->props = dp8393x_properties;
-    /* Reason: dma_mr property can't be set */
-    dc->user_creatable = false;
 }
 
 static const TypeInfo dp8393x_info = {