Mayank Grover | f3b7818 | 2017-12-19 13:31:30 +0530 | [diff] [blame^] | 1 | #!/bin/bash |
| 2 | |
| 3 | PROG_NAME=`basename $0` |
| 4 | |
| 5 | function usage() { |
| 6 | echo "Usage:" |
| 7 | echo " $PROG_NAME <Base DTS> <Overlay DTS> <Output DTS>" |
| 8 | } |
| 9 | |
| 10 | function on_exit() { |
| 11 | rm -rf "$TEMP_DIR" |
| 12 | } |
| 13 | |
| 14 | # |
| 15 | # Start |
| 16 | # |
| 17 | |
| 18 | if [[ $# -lt 3 ]]; then |
| 19 | usage |
| 20 | exit 1 |
| 21 | fi |
| 22 | |
| 23 | BASE_DTS=$1 |
| 24 | OVERLAY_DTS=$2 |
| 25 | OUT_DTS=$3 |
| 26 | |
| 27 | TEMP_DIR=`mktemp -d` |
| 28 | # The script will exit directly if any command fails. |
| 29 | set -e |
| 30 | trap on_exit EXIT |
| 31 | |
| 32 | # Finds '/dts-v1/; and /plugin/;' then replace them with '/* REMOVED */' |
| 33 | OVERLAY_DTS_DIR=`dirname "$OVERLAY_DTS"` |
| 34 | OVERLAY_DTS_NAME=`basename "$OVERLAY_DTS"` |
| 35 | OVERLAY_DT_WO_HEADER_DTS="$TEMP_DIR/$OVERLAY_DTS_NAME" |
| 36 | sed "s/\\(\\/dts-v1\\/\\s*;\\|\\/plugin\\/\\s*;\\)/\\/\\* REMOVED \\*\\//g" \ |
| 37 | "$OVERLAY_DTS" > "$OVERLAY_DT_WO_HEADER_DTS" |
| 38 | |
| 39 | # Appends /include/ ...; |
| 40 | BASE_DTS_DIR=`dirname "$BASE_DTS"` |
| 41 | BASE_DTS_NAME=`basename "$BASE_DTS"` |
| 42 | BASE_DT_WITH_INC_DTS="$TEMP_DIR/$BASE_DTS_NAME" |
| 43 | cp "$BASE_DTS" "$BASE_DT_WITH_INC_DTS" |
| 44 | echo "/include/ \"$OVERLAY_DT_WO_HEADER_DTS\"" >> "$BASE_DT_WITH_INC_DTS" |
| 45 | |
| 46 | # Simulate device tree overlay |
| 47 | MERGED_DTB="$BASE_DT_WITH_INC_DTS.dtb" |
| 48 | dtc -@ -i "$BASE_DTS_DIR" -i "$OVERLAY_DTS_DIR" -O dtb -o "$MERGED_DTB" "$BASE_DT_WITH_INC_DTS" |
| 49 | |
| 50 | # Dump |
| 51 | dtc -s -O dts -o "$OUT_DTS" "$MERGED_DTB" |