u-boot/arch/riscv/lib/mkimage_fit_opensbi.sh
Lukas Auer 89fe196c99 riscv: add a generic FIT generator script
Add a generic FIT generator script for RISC-V to generate images
containing U-Boot, OpenSBI FW_DYNAMIC firmware, and optionally one or
more device trees. The location of the OpenSBI firmware binary can be
specified with the OPENSBI environment variable. By default, it is
assumed to be "fw_dynamic.bin", located in the U-Boot top-level. Device
trees are passed as arguments to the generator script. A separate
configuration entry is created for each device tree.

The load addresses of U-Boot and OpenSBI are parsed from the U-Boot
configuration. They can be overwritten with the UBOOT_LOAD_ADDR and
OPENSBI_LOAD_ADDR environment variables.

The script is based on the i.MX (arch/arm/mach-imx/mkimage_fit_atf.sh)
and Allwinner sunxi (board/sunxi/mksunxi_fit_atf.sh) FIT generator
scripts.

Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Anup Patel <anup.patel@wdc.com>
2019-08-26 16:07:42 +08:00

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#!/bin/sh
# SPDX-License-Identifier: GPL-2.0+
#
# script to generate FIT image source for RISC-V boards with OpenSBI
# and, optionally, multiple device trees (given on the command line).
#
# usage: $0 [<dt_name> [<dt_name] ...]
[ -z "$OPENSBI" ] && OPENSBI="fw_dynamic.bin"
if [ -z "$UBOOT_LOAD_ADDR" ]; then
UBOOT_LOAD_ADDR="$(grep "^CONFIG_SYS_TEXT_BASE=" .config | awk 'BEGIN{FS="="} {print $2}')"
fi
if [ -z "$OPENSBI_LOAD_ADDR" ]; then
OPENSBI_LOAD_ADDR="$(grep "^CONFIG_SPL_OPENSBI_LOAD_ADDR=" .config | awk 'BEGIN{FS="="} {print $2}')"
fi
if [ ! -f $OPENSBI ]; then
echo "WARNING: OpenSBI binary \"$OPENSBI\" not found, resulting binary is not functional." >&2
OPENSBI=/dev/null
fi
cat << __HEADER_EOF
/dts-v1/;
/ {
description = "Configuration to load OpenSBI before U-Boot";
images {
uboot {
description = "U-Boot";
data = /incbin/("u-boot-nodtb.bin");
type = "standalone";
os = "U-Boot";
arch = "riscv";
compression = "none";
load = <$UBOOT_LOAD_ADDR>;
};
opensbi {
description = "RISC-V OpenSBI";
data = /incbin/("$OPENSBI");
type = "firmware";
os = "opensbi";
arch = "riscv";
compression = "none";
load = <$OPENSBI_LOAD_ADDR>;
entry = <$OPENSBI_LOAD_ADDR>;
};
__HEADER_EOF
cnt=1
for dtname in $*
do
cat << __FDT_IMAGE_EOF
fdt_$cnt {
description = "$(basename $dtname .dtb)";
data = /incbin/("$dtname");
type = "flat_dt";
compression = "none";
};
__FDT_IMAGE_EOF
cnt=$((cnt+1))
done
cat << __CONF_HEADER_EOF
};
configurations {
default = "config_1";
__CONF_HEADER_EOF
if [ $# -eq 0 ]; then
cat << __CONF_SECTION_EOF
config_1 {
description = "U-Boot FIT";
firmware = "opensbi";
loadables = "uboot";
};
__CONF_SECTION_EOF
else
cnt=1
for dtname in $*
do
cat << __CONF_SECTION_EOF
config_$cnt {
description = "$(basename $dtname .dtb)";
firmware = "opensbi";
loadables = "uboot";
fdt = "fdt_$cnt";
};
__CONF_SECTION_EOF
cnt=$((cnt+1))
done
fi
cat << __ITS_EOF
};
};
__ITS_EOF