diff options
Diffstat (limited to 'include/mrc.sh')
| -rwxr-xr-x | include/mrc.sh | 41 |
1 files changed, 40 insertions, 1 deletions
diff --git a/include/mrc.sh b/include/mrc.sh index 6a9b0a12..32c68a83 100755 --- a/include/mrc.sh +++ b/include/mrc.sh @@ -1,11 +1,25 @@ # SPDX-License-Identifier: GPL-2.0-only # Logic based on util/chromeos/crosfirmware.sh in coreboot cfc26ce278. -# Modifications in this version are Copyright 2021 and 2023 Leah Rowe. +# Modifications in this version are Copyright 2021, 2023 and 2024 Leah Rowe. # Original copyright detailed in repo: https://review.coreboot.org/coreboot/ eval "$(setvars "" MRC_url MRC_url_bkup MRC_hash MRC_board SHELLBALL)" +extract_ref() +{ + # refcode needed on broadwell, but not needed on haswell + + # we check mrc twice, because each check only verifies one file, + # but refcode is downloaded alongside mrc. in cases where lbmk + # erred, downloading only mrc, we must ensure downloading refcode + [ -n "$CONFIG_MRC_FILE" ] || \ + err "extract_ref $board: CONFIG_MRC_FILE not defined" + + # the extract_mrc function actually downloads the refcode + fetch "mrc" "$MRC_url" "$MRC_url_bkup" "$MRC_hash" "$CONFIG_MRC_FILE" +} + extract_mrc() { [ -z "$MRC_board" ] && err "extract_mrc $MRC_hash: MRC_board not set" @@ -22,6 +36,8 @@ extract_mrc() "${cbfstool}" "${appdir}/"bios.bin extract -n mrc.bin \ -f "$_dest" -r RO_SECTION || err "extract_mrc: cbfstool $_dest" + + [ -n "$CONFIG_REFCODE_BLOB_FILE" ] && extract_refcode; return 0 } extract_partition() @@ -40,3 +56,26 @@ extract_partition() printf "cd /usr/sbin\ndump chromeos-firmwareupdate ${SHELLBALL}\nquit" \ | debugfs "root-a.ext2" || err "can't extract shellball" } + +extract_refcode() +{ + _refdest="${CONFIG_REFCODE_BLOB_FILE##*../}" + [ -f "$_refdest" ] && return 0 + + # cbfstool changed the attributes scheme for stage files, + # incompatible with older versions before coreboot 4.14, + # so we need coreboot 4.13 cbfstool for certain refcode files + [ -n "$cbfstoolref" ] || \ + err "extract_refcode $board: MRC_refcode_cbtree not set" + mkdir -p "${_refdest%/*}" || \ + err "extract_refcode $board: !mkdir -p ${_refdest%/*}" + + "$cbfstoolref" "$appdir/bios.bin" extract \ + -m x86 -n fallback/refcode -f "$_refdest" -r RO_SECTION \ + || err "extract_refcode $board: !cbfstoolref $_refdest" + + # enable the Intel GbE device, if told by offset MRC_refcode_gbe + [ -z "$MRC_refcode_gbe" ] || dd if="config/ifd/hp820g2/1.bin" \ + of="$_refdest" bs=1 seek=$MRC_refcode_gbe count=1 conv=notrunc || \ + err "extract_refcode $_refdest: byte $MRC_refcode_gbe"; return 0 +} |