diff options
Diffstat (limited to 'target/linux/mvebu/image/Makefile')
| -rw-r--r-- | target/linux/mvebu/image/Makefile | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/target/linux/mvebu/image/Makefile b/target/linux/mvebu/image/Makefile index 9220c6c9f1..44e66a5f87 100644 --- a/target/linux/mvebu/image/Makefile +++ b/target/linux/mvebu/image/Makefile @@ -51,6 +51,63 @@ define Build/buffalo-kernel-jffs2 rm -rf $(KDIR)/kernel_jffs2 $@.fakerd endef +# Some info about Ctera firmware: +# 1. It's simple tar file (GNU standard), but it must have ".firm" suffix. +# 2. It contains two images: kernel and romdisk. Both are required. +# 3. Every image has header and trailer file. +# 4. The struct of tar firmware is: header kernel trailer header romdisk trailer +# 5. In header file are some strings used to describe image. It was decoded from +# factory image. +# 6. Version format in header file is restricted by Original FW. +# 7. Trailer file contains MD5 sum string of header and image file. +# 8. Firmware file must have <=24MB size. + +define Build/ctera-firmware + mkdir -p $@.tmp + + # Prepare header and trailer file for kernel + echo "# CTera firmware information file" > $@.tmp/header + echo "image_type=kernel" >> $@.tmp/header + echo "arch=ARM" >> $@.tmp/header + echo "board=2Drive_A" >> $@.tmp/header + echo "version=5.5.165.61499" >> $@.tmp/header + echo "kernel_cmd=console=ttyS0,115200 earlycon" >> $@.tmp/header + echo "date=$$(date $(if $(SOURCE_DATE_EPOCH),-d@$(SOURCE_DATE_EPOCH)))" \ + >> $@.tmp/header + + cp $@ $@.tmp/kernel + + echo "MD5=$$(cat $@.tmp/header $@.tmp/kernel | $(MKHASH) md5)" \ + > $@.tmp/trailer + + tar $(if $(SOURCE_DATE_EPOCH),--mtime="@$(SOURCE_DATE_EPOCH)") \ + -H gnu -C $@.tmp -cf $@.tar header kernel trailer + + # Prepare header and trailer file for fake romdisk + echo "# CTera firmware information file" > $@.tmp/header + echo "image_type=romdisk" >> $@.tmp/header + echo "initrd=yes" >> $@.tmp/header + echo "arch=ARM" >> $@.tmp/header + echo "board=2Drive_A" >> $@.tmp/header + echo "version=5.5.165.61499" >> $@.tmp/header + echo "date=$$(date $(if $(SOURCE_DATE_EPOCH),-d@$(SOURCE_DATE_EPOCH)))" \ + >> $@.tmp/header + + rm -f $@ + touch $@ + $(call Build/append-uImage-fakehdr, ramdisk) + cp $@ $@.tmp/romdisk + + echo "MD5=$$(cat $@.tmp/header $@.tmp/romdisk | $(MKHASH) md5)" \ + > $@.tmp/trailer + + tar $(if $(SOURCE_DATE_EPOCH),--mtime="@$(SOURCE_DATE_EPOCH)") \ + -H gnu -C $@.tmp -rf $@.tar header romdisk trailer + + mv $@.tar $@ + rm -rf $@.tmp +endef + define Build/sdcard-img SIGNATURE="$(IMG_PART_SIGNATURE)" \ ./gen_mvebu_sdcard_img.sh $@ \ |