U-Boot

# SPDX-License-Identifier: MIT
# Copyright 2026 Canonical Ltd.
# Written by Simon Glass <simon.glass@canonical.com>
#
# Helper script sourced by console.qemu for EFI-application boards.
#
# Sets up a staging directory with:
#   - u-boot-app.efi copied from the build directory
#   - startup.nsh that launches the EFI app
#   - a writable copy of the UEFI firmware variables file
#
# Required variables (set by the board conf.*):
#   efi_app_binary  - name of the EFI app (default: u-boot-app.efi)
#   efi_fw_code     - path to UEFI firmware code (pflash, read-only)
#   efi_fw_vars     - path to UEFI firmware vars (pflash template)
#
# Optional:
#   efi_use_blockdev - set to "y" for machines that need blockdev-style
#                      pflash (e.g. RISC-V virt)
#   efi_virtio_blk   - set to "y" to use virtio-blk for the FAT drive

efi_app_binary="${efi_app_binary:-u-boot-app.efi}"

efi_stage="${U_BOOT_BUILD_DIR}/efi_stage"
rm -rf "${efi_stage}"
mkdir -p "${efi_stage}"

cp "${U_BOOT_BUILD_DIR}/${efi_app_binary}" "${efi_stage}/"
printf 'fs0:%s\n' "${efi_app_binary}" > "${efi_stage}/startup.nsh"
cp "${efi_fw_vars}" "${efi_stage}/vars.fd"

if [ "${efi_use_blockdev}" = "y" ]; then
	ARGS+=" -blockdev node-name=pflash0,driver=file,read-only=on,filename=${efi_fw_code}"
	ARGS+=" -blockdev node-name=pflash1,driver=file,filename=${efi_stage}/vars.fd"
else
	ARGS+=" -drive if=pflash,format=raw,file=${efi_fw_code},readonly=on"
	ARGS+=" -drive if=pflash,format=raw,file=${efi_stage}/vars.fd"
fi

if [ "${efi_virtio_blk}" = "y" ]; then
	ARGS+=" -device virtio-blk-device,drive=efi_fat"
	ARGS+=" -drive id=efi_fat,if=none,file=fat:rw:${efi_stage},format=raw"
else
	ARGS+=" -drive file=fat:rw:${efi_stage},format=raw"
fi