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