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" and 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 ---
Changes in v2: None
arch/riscv/lib/mkimage_fit_opensbi.sh | 100 ++++++++++++++++++++++++++ 1 file changed, 100 insertions(+) create mode 100755 arch/riscv/lib/mkimage_fit_opensbi.sh
diff --git a/arch/riscv/lib/mkimage_fit_opensbi.sh b/arch/riscv/lib/mkimage_fit_opensbi.sh new file mode 100755 index 0000000000..d6f95e5bfd --- /dev/null +++ b/arch/riscv/lib/mkimage_fit_opensbi.sh @@ -0,0 +1,100 @@ +#!/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