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#!/bin/bash
# vim:sw=8:noet
BBL=2E54B353-1271-4842-806F-E436D6AF6985
FSBL=5B193300-FC78-40CD-8002-E86C45580B47
SPL=$FSBL
UBOOT_CODE=$BBL
MEDIATABLE=gpt
ROOTPART_NUM=1
# ~1 MiB for U-Boot SPL
# ~4 MiB for OpenSBI + U-Boot
# + some overhead for future usage
START_SECTOR=34 # MiB
[ -n "$EFI" ] || BOOTFLAG=legacy_boot
[ -n "$VNC" ] ||
case "$TARGET" in
sifive_unleashed) VNC=1;;
*) VNC=0;;
esac
CONSOLE=1
[ -n "$SYSCON" ] || SYSCON=ttySIF0,115200n8
soc_write_bootloader() {
unmount_partition
[ -n "$ROOTFS" ] || clear_riscv64_bootloader_partition
print_message "Creating partitions for U-Boot SPL and OpenSBI + U-Boot..."
LASTPART_NUM=$(sgdisk -p "$MEDIA" | tail -n1 | tr -s ' ' | cut -f 2 -d ' ')
let 'SPLPART_NUM = LASTPART_NUM + 1'
let 'UBOOTPART_NUM = LASTPART_NUM + 2'
sgdisk -a 1 \
--new=$SPLPART_NUM:34:2081 --change-name=$SPLPART_NUM:spl \
--typecode=$SPLPART_NUM:"$SPL" \
--new=$UBOOTPART_NUM:2082:10273 --change-name=$UBOOTPART_NUM:uboot \
--typecode=$UBOOTPART_NUM:"$UBOOT_CODE" \
"$MEDIA" ||
fatal_error "failed to create U-Boot SPL and OpenSBI + U-Boot partitions"
print_done
sync_partitions
mount_partition
set_path_to_uboot
print_message "Writing U-Boot SPL for ${TARGET-}..."
SPL_BLOB="$(readlink -e "$UBOOT/u-boot-spl.bin")"
[ -f "${SPL_BLOB-}" ] || fatal_error "${SPL_BLOB-} was not found"
SPLPART="${MEDIA}${partsuffix-}${SPLPART_NUM}"
[ -b "${SPLPART-}" ] || fatal_error "${SPLPART-} is not a block device or does not exist"
dd if="$SPL_BLOB" of="$SPLPART" bs=4M status=none || fatal_error "failed to write U-Boot SPL"
print_done
print_message "Writing OpenSBI + U-Boot for ${TARGET-}..."
UBOOT_BLOB="$(readlink -e "$UBOOT/u-boot.itb")"
[ -f "${UBOOT_BLOB-}" ] || fatal_error "${UBOOT_BLOB-}} was not found"
UBOOTPART="${MEDIA}${partsuffix-}${UBOOTPART_NUM}"
[ -b "${UBOOTPART-}" ] || fatal_error "${UBOOTPART-} is not a block device or does not exist"
dd if="$UBOOT_BLOB" of="$UBOOTPART" bs=4M status=none || fatal_error "failed to write OpenSBI+U-Boot"
sync
print_done
}
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