diff --git a/import-layers/meta-raspberrypi/classes/linux-raspberrypi-base.bbclass b/import-layers/meta-raspberrypi/classes/linux-raspberrypi-base.bbclass
index 40beef1..dc2330a 100644
--- a/import-layers/meta-raspberrypi/classes/linux-raspberrypi-base.bbclass
+++ b/import-layers/meta-raspberrypi/classes/linux-raspberrypi-base.bbclass
@@ -1,7 +1,8 @@
 inherit linux-kernel-base
 
+def get_dts(d, ver=None):
+    import re
 
-def get_dts(d, ver):
     staging_dir = d.getVar("STAGING_KERNEL_BUILDDIR", True)
     dts = d.getVar("KERNEL_DEVICETREE", True)
 
@@ -13,27 +14,16 @@
         from the kernel staging '''
         ver = get_kernelversion_file(staging_dir)
 
-    if ver is not None:
-        min_ver = ver.split('.', 3)
-    else:
-        return dts
-
-    # Always turn off device tree support for kernel's < 3.18
-    try:
-        if int(min_ver[0]) <= 3:
-            if int(min_ver[1]) < 18:
-                dts = ""
-    except IndexError:
-        min_ver = None
-
     return dts
 
 
-def split_overlays(d, out):
-    dts = get_dts(d, None)
+def split_overlays(d, out, ver=None):
+    dts = get_dts(d, ver)
     if out:
         overlays = oe.utils.str_filter_out('\S+\-overlay\.dtb$', dts, d)
+        overlays = oe.utils.str_filter_out('\S+\.dtbo$', overlays, d)
     else:
-        overlays = oe.utils.str_filter('\S+\-overlay\.dtb$', dts, d)
+        overlays = oe.utils.str_filter('\S+\-overlay\.dtb$', dts, d) + \
+                   " " + oe.utils.str_filter('\S+\.dtbo$', dts, d)
 
     return overlays