image: add support for building FIT image with filesystem

[openwrt/openwrt.git] / scripts / mkits.sh

diff --git a/scripts/mkits.sh b/scripts/mkits.sh
index bb629d6fca6e130ccfa45bced372fc108ee3cf41..59ff3a2d15195a6eff3c3b20093b373745bfa562 100755 (executable)
--- a/scripts/mkits.sh
+++ b/scripts/mkits.sh
@@ -23,18 +23,24 @@ usage() {
        printf "\n\t-c ==> set config name 'config'"
        printf "\n\t-a ==> set load address to 'addr' (hex)"
        printf "\n\t-e ==> set entry point to 'entry' (hex)"
+       printf "\n\t-f ==> set device tree compatible string"
        printf "\n\t-v ==> set kernel version to 'version'"
        printf "\n\t-k ==> include kernel image 'kernel'"
        printf "\n\t-D ==> human friendly Device Tree Blob 'name'"
        printf "\n\t-n ==> fdt unit-address 'address'"
        printf "\n\t-d ==> include Device Tree Blob 'dtb'"
+       printf "\n\t-r ==> include RootFS blob 'rootfs'"
+       printf "\n\t-H ==> specify hash algo instead of SHA1"
        printf "\n\t-o ==> create output file 'its_file'\n"
        exit 1
 }
 
 FDTNUM=1
+ROOTFSNUM=1
+HASH=sha1
+LOADABLES=
 
-while getopts ":A:a:c:C:D:d:e:k:n:o:v:" OPTION
+while getopts ":A:a:c:C:D:d:e:f:k:n:o:v:r:S" OPTION
 do
        case $OPTION in
                A ) ARCH=$OPTARG;;
@@ -44,9 +50,12 @@ do
                D ) DEVICE=$OPTARG;;
                d ) DTB=$OPTARG;;
                e ) ENTRY_ADDR=$OPTARG;;
+               f ) COMPATIBLE=$OPTARG;;
                k ) KERNEL=$OPTARG;;
                n ) FDTNUM=$OPTARG;;
                o ) OUTPUT=$OPTARG;;
+               r ) ROOTFS=$OPTARG;;
+               S ) HASH=$OPTARG;;
                v ) VERSION=$OPTARG;;
                * ) echo "Invalid option passed to '$0' (options:$*)"
                usage;;
@@ -62,11 +71,16 @@ fi
 
 ARCH_UPPER=$(echo "$ARCH" | tr '[:lower:]' '[:upper:]')
 
+if [ -n "${COMPATIBLE}" ]; then
+       COMPATIBLE_PROP="compatible = \"${COMPATIBLE}\";"
+fi
+
 # Conditionally create fdt information
 if [ -n "${DTB}" ]; then
        FDT_NODE="
                fdt@$FDTNUM {
                        description = \"${ARCH_UPPER} OpenWrt ${DEVICE} device tree blob\";
+                       ${COMPATIBLE_PROP}
                        data = /incbin/(\"${DTB}\");
                        type = \"flat_dt\";
                        arch = \"${ARCH}\";
@@ -75,13 +89,34 @@ if [ -n "${DTB}" ]; then
                                algo = \"crc32\";
                        };
                        hash@2 {
-                               algo = \"sha1\";
+                               algo = \"${HASH}\";
                        };
                };
 "
        FDT_PROP="fdt = \"fdt@$FDTNUM\";"
 fi
 
+if [ -n "${ROOTFS}" ]; then
+       dd if="${ROOTFS}" of="${ROOTFS}.pagesync" bs=4096 conv=sync
+       ROOTFS_NODE="
+               rootfs@$ROOTFSNUM {
+                       description = \"${ARCH_UPPER} OpenWrt ${DEVICE} rootfs\";
+                       ${COMPATIBLE_PROP}
+                       data = /incbin/(\"${ROOTFS}.pagesync\");
+                       type = \"filesystem\";
+                       arch = \"${ARCH}\";
+                       compression = \"none\";
+                       hash@1 {
+                               algo = \"crc32\";
+                       };
+                       hash@2 {
+                               algo = \"${HASH}\";
+                       };
+               };
+"
+       LOADABLES="${LOADABLES:+$LOADABLES, }\"rootfs@${ROOTFSNUM}\""
+fi
+
 # Create a default, fully populated DTS file
 DATA="/dts-v1/;
 
@@ -103,18 +138,21 @@ DATA="/dts-v1/;
                                algo = \"crc32\";
                        };
                        hash@2 {
-                               algo = \"sha1\";
+                               algo = \"$HASH\";
                        };
                };
 ${FDT_NODE}
+${ROOTFS_NODE}
        };
 
        configurations {
                default = \"${CONFIG}\";
                ${CONFIG} {
-                       description = \"OpenWrt\";
+                       description = \"OpenWrt ${DEVICE}\";
                        kernel = \"kernel@1\";
                        ${FDT_PROP}
+                       ${LOADABLES:+loadables = ${LOADABLES};}
+                       ${COMPATIBLE_PROP}
                };
        };
 };"