Index: head/sys/arm/conf/ARMADA38X
===================================================================
--- head/sys/arm/conf/ARMADA38X
+++ head/sys/arm/conf/ARMADA38X
@@ -72,6 +72,10 @@
 device		pass
 device		da
 
+# I2C
+device		iic
+device		iicbus
+
 #FDT
 options 	FDT
 options 	FDT_DTB_STATIC
Index: head/sys/arm/mv/twsi.c
===================================================================
--- head/sys/arm/mv/twsi.c
+++ head/sys/arm/mv/twsi.c
@@ -141,6 +141,12 @@
 	{ -1, 0 }
 };
 
+static struct ofw_compat_data compat_data[] = {
+	{ "mrvl,twsi",			true },
+	{ "marvell,mv64xxx-i2c",	true },
+	{ NULL,				false }
+};
+
 static device_method_t mv_twsi_methods[] = {
 	/* device interface */
 	DEVMETHOD(device_probe,		mv_twsi_probe),
@@ -308,7 +314,7 @@
 	if (!ofw_bus_status_okay(dev))
 		return (ENXIO);
 
-	if (!ofw_bus_is_compatible(dev, "mrvl,twsi"))
+	if (!ofw_bus_search_compatible(dev, compat_data)->ocd_data)
 		return (ENXIO);
 
 	device_set_desc(dev, "Marvell Integrated I2C Bus Controller");