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@@ -0,0 +1,123 @@
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+#!/bin/sh
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+# SPDX-License-Identifier: GPL-2.0+
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+#
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+# script to generate FIT image source for Xilinx ZynqMP boards with
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+# ARM Trusted Firmware and multiple device trees (given on the command line)
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+#
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+# usage: $0 <dt_name> [<dt_name> [<dt_name] ...]
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+
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+BL33="u-boot-nodtb.bin"
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+[ -z "$BL31" ] && BL31="bl31.bin"
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+# Can be also done as ${CROSS_COMPILE}readelf -l bl31.elf | awk '/Entry point/ { print $3 }'
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+[ -z "$ATF_LOAD_ADDR" ] && ATF_LOAD_ADDR="0xfffea000"
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+
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+if [ -z "$BL33_LOAD_ADDR" ];then
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+ BL33_LOAD_ADDR=`awk '/CONFIG_SYS_TEXT_BASE/ { print $3 }' include/generated/autoconf.h`
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+fi
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+
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+DTB_LOAD_ADDR=`awk '/CONFIG_XILINX_OF_BOARD_DTB_ADDR/ { print $3 }' include/generated/autoconf.h`
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+if [ ! -z "$DTB_LOAD_ADDR" ]; then
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+ DTB_LOAD="load = <$DTB_LOAD_ADDR>;"
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+else
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+ DTB_LOAD=""
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+fi
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+
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+if [ -z "$*" ]; then
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+ DT=arch/arm/dts/${DEVICE_TREE}.dtb
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+else
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+ DT=$*
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+fi
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+
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+if [ ! -f $BL31 ]; then
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+ echo "WARNING: BL31 file $BL31 NOT found, resulting binary is non-functional" >&2
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+ BL31=/dev/null
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+ # But U-Boot proper could be loaded in EL3 by specifying
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+ # firmware = "uboot";
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+ # instead of "atf" in config node
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+fi
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+
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+cat << __HEADER_EOF
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+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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+
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+/dts-v1/;
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+
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+/ {
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+ description = "Configuration to load ATF before U-Boot";
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+
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+ images {
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+ uboot {
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+ description = "U-Boot (64-bit)";
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+ data = /incbin/("$BL33");
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+ type = "firmware";
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+ os = "u-boot";
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+ arch = "arm64";
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+ compression = "none";
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+ load = <$BL33_LOAD_ADDR>;
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+ entry = <$BL33_LOAD_ADDR>;
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+ hash {
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+ algo = "md5";
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+ };
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+ };
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+ atf {
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+ description = "ARM Trusted Firmware";
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+ data = /incbin/("$BL31");
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+ type = "firmware";
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+ os = "arm-trusted-firmware";
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+ arch = "arm64";
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+ compression = "none";
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+ load = <$ATF_LOAD_ADDR>;
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+ entry = <$ATF_LOAD_ADDR>;
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+ hash {
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+ algo = "md5";
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+ };
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+ };
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+__HEADER_EOF
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+
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+DEFAULT=1
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+cnt=1
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+for dtname in $DT
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+do
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+ cat << __FDT_IMAGE_EOF
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+ fdt_$cnt {
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+ description = "$(basename $dtname .dtb)";
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+ data = /incbin/("$dtname");
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+ type = "flat_dt";
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+ arch = "arm64";
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+ compression = "none";
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+ $DTB_LOAD
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+ hash {
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+ algo = "md5";
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+ };
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+ };
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+__FDT_IMAGE_EOF
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+
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+[ "x$(basename $dtname .dtb)" = "x${DEVICE_TREE}" ] && DEFAULT=$cnt
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+
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+cnt=$((cnt+1))
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+done
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+
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+cat << __CONF_HEADER_EOF
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+ };
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+ configurations {
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+ default = "config_$DEFAULT";
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+
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+__CONF_HEADER_EOF
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+
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+cnt=1
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+for dtname in $DT
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+do
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+cat << __CONF_SECTION1_EOF
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+ config_$cnt {
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+ description = "$(basename $dtname .dtb)";
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+ firmware = "atf";
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+ loadables = "uboot";
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+ fdt = "fdt_$cnt";
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+ };
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+__CONF_SECTION1_EOF
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+cnt=$((cnt+1))
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+done
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+
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+cat << __ITS_EOF
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+ };
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+};
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+__ITS_EOF
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