mvebu: cortexa9: Add support for Ctera C200-V2

[openwrt/staging/chunkeey.git] / target / linux / mvebu / image / Makefile

diff --git a/target/linux/mvebu/image/Makefile b/target/linux/mvebu/image/Makefile
index 9220c6c9f1410bef11716364db71ce98e650f454..44e66a5f87304092497023f12c2eb1ce448bbb3d 100644 (file)
--- 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 $@ \