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-rwxr-xr-xtools/generate_json/generate_json.sh32
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diff --git a/tools/generate_json/generate_json.sh b/tools/generate_json/generate_json.sh
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+#!/bin/bash
+
+#
+# Copyright (c) 2020, Arm Limited. All rights reserved.
+#
+# SPDX-License-Identifier: BSD-3-Clause
+#
+
+# Generate a JSON file which will be fed to TF-A as SPM_LAYOUT_FILE to package
+# Secure Partitions as part of FIP.
+
+# $1 = Secure Partition (cactus)
+# $2 = Platform (fvp)
+# $3 = Build Type
+# Output = build/plat/<Build Type>/sp_layout.json
+
+GENERATED_JSON=build/$2/$3/sp_layout.json
+
+# To demonstrate communication between SP's, two cactus S-EL1 instances used.
+# cactus-primary and cactus-secondary has same binary but different
+# partition manifest.
+if [ "$1" == "cactus" ]; then
+ echo -e "{\n\t\"$1-primary\" : {\n \
+ \t\"image\": \"$1.bin\",\n \
+ \t\"pm\": \"../../../spm/$1/$1.dts\"\n\t},\n\n\t\"$1-secondary\" : {\n \
+ \t\"image\": \"$1.bin\",\n \
+ \t\"pm\": \"../../../spm/$1/$1-secondary.dts\" \n \
+ }\n}" \
+ > "$GENERATED_JSON"
+else
+ echo -e "\nWarning: Only Cactus is supported as Secure Partition\n"
+fi