1 files changed, 16 insertions, 0 deletions

diff --git a/conf/machine/include/utilities.inc b/conf/machine/include/utilities.inc
new file mode 100644
index 00000000..e6cfda80
--- /dev/null
+++ b/conf/machine/include/utilities.inc
@@ -0,0 +1,16 @@
+### Machine definition file utilities
+
+def make_dtb_boot_files(d):
+    # Generate IMAGE_BOOT_FILES entries for device tree files listed in
+    # KERNEL_DEVICETREE.
+    # Use only the basename for dtb files:
+    alldtbs = d.getVar('KERNEL_DEVICETREE')
+
+    def transform(dtb):
+        if dtb.endswith('dtb') or dtb.endswith('dtbo'):
+            # eg: whatever/bcm2708-rpi-b.dtb has:
+            #     DEPLOYDIR file: bcm2708-rpi-b.dtb
+            #     destination: bcm2708-rpi-b.dtb
+            return os.path.basename(dtb)
+
+    return ' '.join([transform(dtb) for dtb in alldtbs.split(' ') if dtb])