[OpenWrt-Devel] [PATCH RFC 09/10] image: add a build recipe to wrap an ubi image in a itb file

[Jonas Gorski]

Signed-off-by: Jonas Gorski <jogo at openwrt.org>
---
 include/image.mk     |  7 +++++
 scripts/mkits-ubi.sh | 79 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 86 insertions(+)
 create mode 100755 scripts/mkits-ubi.sh

diff --git a/include/image.mk b/include/image.mk
index 8ac3593..261cbb2 100644
--- a/include/image.mk
+++ b/include/image.mk
@@ -318,6 +318,13 @@ define Build/fit
 	@mv $@.new $@
 endef
 
+define Build/ubi-fit
+	$(TOPDIR)/scripts/mkits-ubi.sh \
+		-D $(DEVICE_NAME) -o $@.its -u $@ -A $(ARCH)
+	PATH=$(LINUX_DIR)/scripts/dtc:$(PATH) mkimage -f $@.its $@.new
+	@mv $@.new $@
+endef
+
 define Build/lzma
 	$(STAGING_DIR_HOST)/bin/lzma e $@ -lc1 -lp2 -pb2 $(1) $@.new
 	@mv $@.new $@
diff --git a/scripts/mkits-ubi.sh b/scripts/mkits-ubi.sh
new file mode 100755
index 0000000..e84a3fa
--- /dev/null
+++ b/scripts/mkits-ubi.sh
@@ -0,0 +1,79 @@
+#!/bin/bash
+#
+# Licensed under the terms of the GNU GPL License version 2 or later.
+#
+# Author: Peter Tyser <ptyser at xes-inc.com>
+#
+# U-Boot firmware supports the booting of images in the Flattened Image
+# Tree (FIT) format.  The FIT format uses a device tree structure to
+# describe a kernel image, device tree blob, ramdisk, etc.  This script
+# creates an Image Tree Source (.its file) which can be passed to the
+# 'mkimage' utility to generate an Image Tree Blob (.itb file).  The .itb
+# file can then be booted by U-Boot (or other bootloaders which support
+# FIT images).  See doc/uImage.FIT/howto.txt in U-Boot source code for
+# additional information on FIT images.
+#
+
+usage() {
+	echo "Usage: `basename $0` -A arch -D name -u ubi -o its_file"
+	echo -e "\t-A ==> set architecture to 'arch'"
+	echo -e "\t-u ==> include ubi image 'kernel'"
+	echo -e "\t-D ==> human friendly UBI 'name'"
+	echo -e "\t-o ==> create output file 'its_file'"
+	exit 1
+}
+
+while getopts ":A:D:o:u:v:" OPTION
+do
+	case $OPTION in
+		A ) ARCH=$OPTARG;;
+		D ) DEVICE=$OPTARG;;
+		u ) UBI=$OPTARG;;
+		o ) OUTPUT=$OPTARG;;
+		* ) echo "Invalid option passed to '$0' (options:$@)"
+		usage;;
+	esac
+done
+
+# Make sure user entered all required parameters
+if [ -z "${ARCH}" ] || [ -z "${UBI}" ] || [ -z "${OUTPUT}" ]; then
+	usage
+fi
+
+ARCH_UPPER=`echo $ARCH | tr '[:lower:]' '[:upper:]'`
+
+# Create a default, fully populated DTS file
+DATA="/dts-v1/;
+
+/ {
+	description = \"${ARCH_UPPER} OpenWrt FIT (Flattened Image Tree)\";
+	#address-cells = <1>;
+
+	images {
+		ubi at 1 {
+			description = \"${ARCH_UPPER} OpenWrt ${DEVICE} ubi rootfs\";
+			data = /incbin/(\"${UBI}\");
+			type = \"firmware\";
+			arch = \"${ARCH}\";
+			compression = \"none\";
+			hash at 1 {
+				algo = \"crc32\";
+			};
+			hash at 2 {
+				algo = \"sha1\";
+			};
+		};
+
+	};
+
+	configurations {
+		default = \"config at 1\";
+		config at 1 {
+			description = \"OpenWrt\";
+			ubi = \"ubi at 1\";
+		};
+	};
+};"
+
+# Write .its file to disk
+echo "$DATA" > ${OUTPUT}
-- 
2.1.4
_______________________________________________
openwrt-devel mailing list
openwrt-devel at lists.openwrt.org
https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-devel