build: image: add UBIFS kernel packer

This allows packing the kernel into UBIFS like newer
MikroTik NAND devices require.

Signed-off-by: Robert Marko <robimarko@gmail.com>

diff --git a/include/image-commands.mk b/include/image-commands.mk
index 91865e1e7eb1c09b1b1b2bcbfc262f5571f1e144..23c7bd6133dfceb173693720b81e6fd09a8fb6c4 100644 (file)
--- a/include/image-commands.mk
+++ b/include/image-commands.mk
@@ -27,6 +27,15 @@ define Build/append-kernel
        dd if=$(IMAGE_KERNEL) >> $@
 endef
 
+define Build/package-kernel-ubifs
+       mkdir $@.kernelubifs
+       cp $@ $@.kernelubifs/kernel
+       $(STAGING_DIR_HOST)/bin/mkfs.ubifs \
+               $(KERNEL_UBIFS_OPTS) \
+               -r $@.kernelubifs $@
+       rm -r $@.kernelubifs
+endef
+
 define Build/append-image
        dd if=$(BIN_DIR)/$(DEVICE_IMG_PREFIX)-$(1) >> $@
 endef