65 lines
1.8 KiB
Bash
Executable File
65 lines
1.8 KiB
Bash
Executable File
#!/bin/bash
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# Copyright (C) 2016 The Android Open Source Project
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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PROG_NAME=`basename $0`
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function usage() {
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echo "Usage:"
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echo " $PROG_NAME <Base DTS> <Overlay DTS> <Output DTS>"
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}
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function on_exit() {
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rm -rf "$TEMP_DIR"
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}
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#
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# Start
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#
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if [[ $# -lt 3 ]]; then
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usage
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exit 1
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fi
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BASE_DTS=$1
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OVERLAY_DTS=$2
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OUT_DTS=$3
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TEMP_DIR=`mktemp -d`
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# The script will exit directly if any command fails.
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set -e
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trap on_exit EXIT
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# Finds '/dts-v1/; and /plugin/;' then replace them with '/* REMOVED */'
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OVERLAY_DTS_DIR=`dirname "$OVERLAY_DTS"`
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OVERLAY_DTS_NAME=`basename "$OVERLAY_DTS"`
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OVERLAY_DT_WO_HEADER_DTS="$TEMP_DIR/$OVERLAY_DTS_NAME"
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sed "s/\\(\\/dts-v1\\/\\s*;\\|\\/plugin\\/\\s*;\\)/\\/\\* REMOVED \\*\\//g" \
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"$OVERLAY_DTS" > "$OVERLAY_DT_WO_HEADER_DTS"
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# Appends /include/ ...;
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BASE_DTS_DIR=`dirname "$BASE_DTS"`
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BASE_DTS_NAME=`basename "$BASE_DTS"`
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BASE_DT_WITH_INC_DTS="$TEMP_DIR/$BASE_DTS_NAME"
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cp "$BASE_DTS" "$BASE_DT_WITH_INC_DTS"
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echo "/include/ \"$OVERLAY_DT_WO_HEADER_DTS\"" >> "$BASE_DT_WITH_INC_DTS"
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# Simulate device tree overlay
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MERGED_DTB="$BASE_DT_WITH_INC_DTS.dtb"
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dtc -@ -i "$BASE_DTS_DIR" -i "$OVERLAY_DTS_DIR" -O dtb -o "$MERGED_DTB" "$BASE_DT_WITH_INC_DTS"
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# Dump
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dtc -s -O dts -o "$OUT_DTS" "$MERGED_DTB"
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