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150 lines
3.1 KiB
150 lines
3.1 KiB
#!/bin/bash
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# SPDX-License-Identifier: GPL-3.0+
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# Copyright (C) 2018, Martin Kepplinger <martink@posteo.de>
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RED='\033[0;31m'
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GREEN='\033[0;32m'
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NC='\033[0m'
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set -e
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IFDTOOL_PATH=./util/ifdtool/ifdtool
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ME_CLEANER_PATH=./util/me_cleaner/me_cleaner.py
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have_chipname=0
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have_backupname=0
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me_clean=0
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lock=0
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usage()
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{
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echo "Usage: $0 -c <chipname> [-m] [-k <backup_filename>] [-l]"
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echo ""
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echo "-m apply me_cleaner -S"
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echo "-l lock the flash instead of unlocking it"
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}
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args=$(getopt -o mlc:k:h -- "$@")
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if [ $? -ne 0 ] ; then
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usage
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exit 1
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fi
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eval set -- "$args"
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while [ $# -gt 0 ]
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do
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case "$1" in
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-m)
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me_clean=1
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;;
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-l)
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lock=1
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;;
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-c)
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CHIPNAME=$2
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have_chipname=1
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shift
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;;
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-k)
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BACKUPNAME=$2
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have_backupname=1
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shift
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;;
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-h)
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usage
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exit 1
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;;
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--)
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shift
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break
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;;
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*)
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echo "Invalid option: $1"
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exit 1
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;;
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esac
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shift
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done
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if [ ! "$have_chipname" -gt 0 ] ; then
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echo "no chipname provided. to find it out, run:"
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echo "flashrom -p linux_spi:dev=/dev/spidev0.0,spispeed=128"
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usage
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exit 1
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fi
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make -C util/ifdtool
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if [ ! -e ${IFDTOOL_PATH} ] ; then
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echo "ifdtool not found at ${IFDTOOL_PATH}"
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exit 1
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fi
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if [ ! "$me_clean" -gt 0 ] ; then
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echo "Intel ME will NOT be cleaned. Use -m if it should be."
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else
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echo -e "Intel ME will be ${GREEN}cleaned${NC}."
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fi
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if [ ! "$lock" -gt 0 ] ; then
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echo -e "The flash ROM will be ${GREEN}unlocked${NC}."
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else
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echo "The flash ROM will be LOCKED!"
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fi
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if [ "$me_clean" -gt 0 ] ; then
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if [ ! -e ${ME_CLEANER_PATH} ] ; then
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echo "me_cleaner not found at ${ME_CLEANER_PATH}"
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exit 1
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fi
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fi
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echo "Start reading 2 times. Please be patient."
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TEMP_DIR=`mktemp -d`
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if [[ ! "$TEMP_DIR" || ! -d "$TEMP_DIR" ]]; then
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echo -e "${RED}Error:${NC} Could not create temp dir"
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exit 1
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fi
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flashrom -p linux_spi:dev=/dev/spidev0.0,spispeed=128 -c ${CHIPNAME} -r ${TEMP_DIR}/test1.rom
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flashrom -p linux_spi:dev=/dev/spidev0.0,spispeed=128 -c ${CHIPNAME} -r ${TEMP_DIR}/test2.rom
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cmp --silent ${TEMP_DIR}/test1.rom ${TEMP_DIR}/test2.rom
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if [ "$have_backupname" -gt 0 ] ; then
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cp ${TEMP_DIR}/test1.rom ${BACKUPNAME}
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echo "current image saved as ${BACKUPNAME}"
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fi
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reference_size=8388608
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TEMP_SIZE=$(wc -c <"$TEMP_DIR/test1.rom")
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if [ ! "$reference_size" -eq "$TEMP_SIZE" ] ; then
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echo -e "${RED}Error:${NC} didn't read 8M. You might be at the wrong chip."
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rm -rf ${TEMP_DIR}
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exit 1
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fi
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echo -e "${GREEN}connection ok${NC}"
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echo "start unlocking ..."
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if [ "$me_clean" -gt 0 ] ; then
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${ME_CLEANER_PATH} -S -O ${TEMP_DIR}/work.rom ${TEMP_DIR}/test1.rom
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else
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cp ${TEMP_DIR}/test1.rom ${TEMP_DIR}/work.rom
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fi
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if [ ! "$lock" -gt 0 ] ; then
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${IFDTOOL_PATH} -u ${TEMP_DIR}/work.rom
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else
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${IFDTOOL_PATH} -l ${TEMP_DIR}/work.rom
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fi
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if [ ! -e ${TEMP_DIR}/work.rom.new ] ; then
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echo -e "${RED}Error:${NC} ifdtool failed. ${TEMP_DIR}/work.rom.new not found."
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rm -rf ${TEMP_DIR}
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exit 1
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fi
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if [ "$me_clean" -gt 0 ] ; then
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echo -e "${GREEN}ifdtool and me_cleaner ok${NC}"
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else
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echo -e "${GREEN}ifdtool ok${NC}"
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fi
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make clean -C util/ifdtool
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echo "start writing..."
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flashrom -p linux_spi:dev=/dev/spidev0.0,spispeed=128 -c ${CHIPNAME} -w ${TEMP_DIR}/work.rom.new
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echo -e "${GREEN}DONE${NC}"
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