#!/bin/ash # # based off of flashrom-x230 # # NOTE: This script is used on legacy-flash boards and runs with busybox ash, # not bash set -e -o pipefail . /etc/ash_functions . /tmp/config TRACE "Under /bin/flash.sh" case "$CONFIG_FLASHROM_OPTIONS" in -* ) [ "$1" != "-s" ] && echo "Board $CONFIG_BOARD detected, continuing..." ;; * ) die "ERROR: No board has been configured!\n\nEach board requires specific flashrom options and it's unsafe to flash without them.\n\nAborting." ;; esac flashrom_progress() { local current=0 local total_bytes=0 local percent=0 local IN='' local spin='-\|/' local spin_idx=0 local progressbar='' local progressbar2='' local status='init' local prev_word='' local prev_prev_word='' local spaces=' ' local hashes='##################################################' progressbar2=$(for i in `seq 48` ; do echo -ne ' ' ; done) echo -e "\nInitializing Flash Programmer" while true ; do prev_prev_word=$prev_word prev_word=$IN read -r -d' ' IN if [ "$total_bytes" != "0" ]; then current=$(echo "$IN" | sed -nE 's/.*(0x[0-9a-f]+).*/\1/p') if [ "${current}" != "" ]; then percent=$((100 * (current + 1) / total_bytes)) pct1=$((percent / 2)) pct2=$((50 - percent / 2)) progressbar=${hashes:0:$pct1} progressbar2=${spaces:0:$pct2} fi else if [ "$prev_prev_word" == "Reading" ] && [ "$IN" == "bytes" ]; then # flashrom may read the descriptor first, so ensure total_bytes is at least 4MB if [[ $prev_word -gt 4194303 ]]; then total_bytes=$prev_word echo "Total flash size : $total_bytes bytes" fi fi if [ "$prev_word" == "total_size:" ]; then # Next is total size in bytes total_bytes=$(echo "$IN" | grep -E -o '[0-9]+') echo "Total flash size : $total_bytes bytes" fi fi if [ "$percent" -gt 99 ]; then spin_idx=4 else spin_idx=$(( (spin_idx+1) %4 )) fi if [ "$status" == "init" ]; then if [ "$IN" == "contents..." ]; then status="reading" echo "Reading old flash contents. Please wait..." fi fi if [ "$status" == "reading" ]; then if echo "${IN}" | grep "done." > /dev/null ; then status="writing" fi fi if [ "$status" == "writing" ]; then echo -ne "Flashing: [${progressbar}${spin:$spin_idx:1}${progressbar2}] (${percent}%)\\r" if echo "$IN" | grep "Verifying" > /dev/null ; then status="verifying" echo "" echo "Verifying flash contents. Please wait..." fi if echo "$IN" | grep "identical" > /dev/null ; then status="done" echo "" echo "The flash contents are identical to the image being flashed." break fi fi if [ "$status" == "verifying" ]; then if echo "${IN}" | grep "VERIFIED." > /dev/null ; then status="done" echo "The flash contents were verified and the image was flashed correctly." break elif echo "${IN}" | grep "FAILED" > /dev/null ; then echo 'Error while verifying flash content' break fi fi done echo "" if [ "$status" == "done" ]; then return 0 else echo 'Error flashing coreboot -- see timestampped flashrom log in /tmp for more info' echo "" return 1 fi } flash_rom() { ROM=$1 if [ "$READ" -eq 1 ]; then flashrom $CONFIG_FLASHROM_OPTIONS -r "${ROM}" \ || die "Backup to $ROM failed" elif [ "$SHA" -eq 1 ]; then flashrom $CONFIG_FLASHROM_OPTIONS -r "${ROM}" 1&>2 >/dev/null \ || die "$ROM: Read failed" sha256sum ${ROM} | cut -f1 -d ' ' else cp "$ROM" /tmp/${CONFIG_BOARD}.rom sha256sum /tmp/${CONFIG_BOARD}.rom if [ "$CLEAN" -eq 0 ]; then preserve_rom /tmp/${CONFIG_BOARD}.rom \ || die "$ROM: Config preservation failed" fi # persist serial number from CBFS if cbfs.sh -r serial_number > /tmp/serial 2>/dev/null; then echo "Persisting system serial" cbfs.sh -o /tmp/${CONFIG_BOARD}.rom -d serial_number 2>/dev/null || true cbfs.sh -o /tmp/${CONFIG_BOARD}.rom -a serial_number -f /tmp/serial fi # persist PCHSTRP9 from flash descriptor if [ "$CONFIG_BOARD" = "librem_l1um" ]; then echo "Persisting PCHSTRP9" flashrom $CONFIG_FLASHROM_OPTIONS -r /tmp/ifd.bin --ifd -i fd >/dev/null 2>&1 \ || die "Failed to read flash descriptor" dd if=/tmp/ifd.bin bs=1 count=4 skip=292 of=/tmp/pchstrp9.bin >/dev/null 2>&1 dd if=/tmp/pchstrp9.bin bs=1 count=4 seek=292 of=/tmp/${CONFIG_BOARD}.rom conv=notrunc >/dev/null 2>&1 fi flashrom $CONFIG_FLASHROM_OPTIONS -w /tmp/${CONFIG_BOARD}.rom \ -V -o "/tmp/flashrom-$(date '+%Y%m%d-%H%M%S').log" 2>&1 | flashrom_progress \ || die "$ROM: Flash failed" fi } if [ "$1" == "-c" ]; then CLEAN=1 READ=0 SHA=0 ROM="$2" elif [ "$1" == "-r" ]; then CLEAN=0 READ=1 SHA=0 ROM="$2" touch $ROM elif [ "$1" == "-s" ]; then CLEAN=0 READ=0 SHA=1 ROM="$2" touch $ROM else CLEAN=0 READ=0 SHA=0 ROM="$1" fi if [ ! -e "$ROM" ]; then die "Usage: $0 [-c|-r|-s] " fi if [ "$READ" -eq 0 ] && [ "${ROM##*.}" = tgz ]; then if [ "${CONFIG_BOARD%_*}" = talos-2 ]; then rm -rf /tmp/verified_rom mkdir /tmp/verified_rom tar -C /tmp/verified_rom -xf $ROM || die "Rom archive $ROM could not be extracted" if ! (cd /tmp/verified_rom/ && sha256sum -cs hashes.txt); then die "Provided tgz image did not pass hash verification" fi echo "Reading current flash and building an update image" flashrom $CONFIG_FLASHROM_OPTIONS -r /tmp/flash.sh.bak \ || die "Read of flash has failed" # ROM and bootblock already have ECC bootblock=$(echo /tmp/verified_rom/*.bootblock) rom=$(echo /tmp/verified_rom/*.rom) kernel=$(echo /tmp/verified_rom/*-zImage.bundled) pnor /tmp/flash.sh.bak -aw HBB < $bootblock pnor /tmp/flash.sh.bak -aw HBI < $rom pnor /tmp/flash.sh.bak -aw BOOTKERNEL < $kernel rm -rf /tmp/verified_rom ROM=/tmp/flash.sh.bak else die "$CONFIG_BOARD doesn't support tgz image format" fi fi flash_rom $ROM # don't leave temporary files lying around rm -f /tmp/flash.sh.bak exit 0