Add overlay initial support (#23)

* Add overlay initial support

* Create load

* Cleanup NL

* Reorg dts files

* Update update-dtb.sh

buildroot-external/barebox-env/bin/init

@@ -10,6 +10,9 @@ for i in /env/init/*; do
 	. $i
 done
 
+# Overlays
+. /env/overlay/load
+
 echo "- Hit m for menu or wait for autoboot -"
 timeout -a 1 -s -v key
 

buildroot-external/barebox-env/overlay/load

@@ -0,0 +1,5 @@
+#!/bin/sh
+
+for i in /env/overlay/*.dbto; do
+	oftree -o $i
+done

buildroot-external/board/ova/post-image.sh

@@ -18,7 +18,7 @@ mkdir -p ${BOOT_DATA}/EFI/BOOT
 mkdir -p ${BOOT_DATA}/EFI/barebox
 
 cp ${BINARIES_DIR}/barebox.bin ${BOOT_DATA}/EFI/BOOT/BOOTx64.EFI
-cp ${BOARD_DIR}/barebox-state.dtb ${BOOT_DATA}/EFI/barebox/state.dtb
+cp ${BR2_EXTERNAL_HASSOS_PATH}/fdt/barebox-state-efi.dtb ${BOOT_DATA}/EFI/barebox/state.dtb
 
 # Create other layers
 create_boot_image ${BINARIES_DIR}

buildroot-external/fdt/barebox-state-efi.dts

@@ -60,7 +60,6 @@
 
 		backend_state: state {
 			partuuid = "33236519-7f32-4dff-8002-3390b62c309d";
-
 		};
 	};
 

scripts/update-dtb.sh

@@ -1,3 +1,3 @@
 #!/bin/sh
 
-dtc -O dtb -o buildroot-external/board/ova/barebox-state.dtb buildroot-external/board/ova/barebox-state.dts
+dtc -O dtb -o buildroot-external/fdt/barebox-state-efi.dtb buildroot-external/fdt/barebox-state-efi.dts