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-rwxr-xr-xscripts/mkits.sh58
1 files changed, 56 insertions, 2 deletions
diff --git a/scripts/mkits.sh b/scripts/mkits.sh
index e5369548d7..7533baf799 100755
--- a/scripts/mkits.sh
+++ b/scripts/mkits.sh
@@ -32,7 +32,9 @@ usage() {
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"
+ printf "\n\t-o ==> create output file 'its_file'"
+ printf "\n\t-O ==> create config with dt overlay 'name:dtb'"
+ printf "\n\t\t(can be specified more than once)\n"
exit 1
}
@@ -41,8 +43,10 @@ ROOTFSNUM=1
INITRDNUM=1
HASH=sha1
LOADABLES=
+DTOVERLAY=
+DTADDR=
-while getopts ":A:a:c:C:D:d:e:f:i:k:n:o:v:r:S" OPTION
+while getopts ":A:a:c:C:D:d:e:f:i:k:n:o:O:v:r:S" OPTION
do
case $OPTION in
A ) ARCH=$OPTARG;;
@@ -57,6 +61,7 @@ do
k ) KERNEL=$OPTARG;;
n ) FDTNUM=$OPTARG;;
o ) OUTPUT=$OPTARG;;
+ O ) DTOVERLAY="$DTOVERLAY ${OPTARG}";;
r ) ROOTFS=$OPTARG;;
S ) HASH=$OPTARG;;
v ) VERSION=$OPTARG;;
@@ -78,6 +83,11 @@ if [ -n "${COMPATIBLE}" ]; then
COMPATIBLE_PROP="compatible = \"${COMPATIBLE}\";"
fi
+[ "$DTOVERLAY" ] && {
+ dtbsize=$(wc -c "$DTB" | cut -d' ' -f1)
+ DTADDR=$(printf "0x%08x" $(($LOAD_ADDR - $dtbsize)) )
+}
+
# Conditionally create fdt information
if [ -n "${DTB}" ]; then
FDT_NODE="
@@ -86,6 +96,7 @@ if [ -n "${DTB}" ]; then
${COMPATIBLE_PROP}
data = /incbin/(\"${DTB}\");
type = \"flat_dt\";
+ ${DTADDR:+load = <${DTADDR}>;}
arch = \"${ARCH}\";
compression = \"none\";
hash@1 {
@@ -141,6 +152,47 @@ if [ -n "${ROOTFS}" ]; then
LOADABLES="${LOADABLES:+$LOADABLES, }\"rootfs-${ROOTFSNUM}\""
fi
+# add DT overlay blobs
+FDTOVERLAY_NODE=""
+OVCONFIGS=""
+[ "$DTOVERLAY" ] && for overlay in $DTOVERLAY ; do
+ overlay_blob=${overlay##*:}
+ ovname=${overlay%%:*}
+ ovnode="fdt-$ovname"
+ ovsize=$(wc -c "$overlay_blob" | cut -d' ' -f1)
+ echo "$ovname ($overlay_blob) : $ovsize" >&2
+ DTADDR=$(printf "0x%08x" $(($DTADDR - $ovsize)))
+ FDTOVERLAY_NODE="$FDTOVERLAY_NODE
+
+ $ovnode {
+ description = \"${ARCH_UPPER} OpenWrt ${DEVICE} device tree overlay $ovname\";
+ ${COMPATIBLE_PROP}
+ data = /incbin/(\"${overlay_blob}\");
+ type = \"flat_dt\";
+ arch = \"${ARCH}\";
+ load = <${DTADDR}>;
+ compression = \"none\";
+ hash@1 {
+ algo = \"crc32\";
+ };
+ hash@2 {
+ algo = \"${HASH}\";
+ };
+ };
+"
+ OVCONFIGS="$OVCONFIGS
+
+ config-$ovname {
+ description = \"OpenWrt ${DEVICE} with $ovname\";
+ kernel = \"kernel-1\";
+ fdt = \"fdt-$FDTNUM\", \"$ovnode\";
+ ${LOADABLES:+loadables = ${LOADABLES};}
+ ${COMPATIBLE_PROP}
+ ${INITRD_PROP}
+ };
+ "
+done
+
# Create a default, fully populated DTS file
DATA="/dts-v1/;
@@ -167,6 +219,7 @@ DATA="/dts-v1/;
};
${INITRD_NODE}
${FDT_NODE}
+${FDTOVERLAY_NODE}
${ROOTFS_NODE}
};
@@ -180,6 +233,7 @@ ${ROOTFS_NODE}
${COMPATIBLE_PROP}
${INITRD_PROP}
};
+ ${OVCONFIGS}
};
};"