You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
180 lines
4.1 KiB
180 lines
4.1 KiB
#!/bin/bash
|
|
# SPDX-License-Identifier: GPL-3.0+
|
|
# Copyright (C) 2018, Martin Kepplinger <martink@posteo.de>
|
|
RED='\033[0;31m'
|
|
GREEN='\033[0;32m'
|
|
NC='\033[0m'
|
|
|
|
set -e
|
|
|
|
IFDTOOL_PATH=./util/ifdtool/ifdtool
|
|
ME_CLEANER_PATH=./util/me_cleaner/me_cleaner.py
|
|
have_chipname=0
|
|
have_backupname=0
|
|
me_clean=0
|
|
lock=0
|
|
|
|
usage()
|
|
{
|
|
echo "Usage: $0 [-c <chipname>] [-a] [-m] [-k <backup_filename>] [-l]"
|
|
echo ""
|
|
echo "-c <chipname> flashrom chip description to use"
|
|
echo "-m apply me_cleaner -S"
|
|
echo "-l lock the flash instead of unlocking it"
|
|
echo "-k <file> save the read image as <file>"
|
|
}
|
|
|
|
args=$(getopt -o mlc:k:h -- "$@")
|
|
if [ $? -ne 0 ] ; then
|
|
usage
|
|
exit 1
|
|
fi
|
|
|
|
eval set -- "$args"
|
|
while [ $# -gt 0 ]
|
|
do
|
|
case "$1" in
|
|
-m)
|
|
me_clean=1
|
|
;;
|
|
-l)
|
|
lock=1
|
|
;;
|
|
-c)
|
|
CHIPNAME=$2
|
|
have_chipname=1
|
|
shift
|
|
;;
|
|
-k)
|
|
BACKUPNAME=$2
|
|
have_backupname=1
|
|
shift
|
|
;;
|
|
-h)
|
|
usage
|
|
exit 1
|
|
;;
|
|
--)
|
|
shift
|
|
break
|
|
;;
|
|
*)
|
|
echo "Invalid option: $1"
|
|
exit 1
|
|
;;
|
|
esac
|
|
shift
|
|
done
|
|
|
|
TEMP_DIR=`mktemp -d`
|
|
if [ ! "$have_chipname" -gt 0 ] ; then
|
|
echo "trying to detect the chip..."
|
|
flashrom -p linux_spi:dev=/dev/spidev0.0,spispeed=128 &> ${TEMP_DIR}/chips || true
|
|
flashrom_error=""
|
|
flashrom_error=$(cat ${TEMP_DIR}/chips | grep -i error || true)
|
|
if [ ! -z "${flashrom_error}" ] ; then
|
|
cat ${TEMP_DIR}/chips
|
|
rm -rf ${TEMP_DIR}
|
|
exit 1
|
|
fi
|
|
|
|
CHIPNAME=""
|
|
chip_found=0
|
|
CHIPNAME=$(cat ${TEMP_DIR}/chips | grep Found | grep "MX25L6406E/MX25L6408E" | grep -o '".*"' || true)
|
|
if [ ! -z "${CHIPNAME}" ] ; then
|
|
chip_found=1
|
|
fi
|
|
CHIPNAME=$(cat ${TEMP_DIR}/chips | grep Found | grep "EN25QH64" | grep -o '".*"' || true)
|
|
if [ ! -z "${CHIPNAME}" ] ; then
|
|
chip_found=1
|
|
fi
|
|
if [ ! "$chip_found" -gt 0 ] ; then
|
|
echo "chip not detected."
|
|
flashrom -p linux_spi:dev=/dev/spidev0.0,spispeed=128
|
|
rm -rf ${TEMP_DIR}
|
|
echo "chip not detected. Please find it manually and rerun with the -c parameter."
|
|
exit 1
|
|
else
|
|
echo -e "Detected ${GREEN}${CHIPNAME}${NC}."
|
|
fi
|
|
fi
|
|
|
|
make -C util/ifdtool
|
|
if [ ! -e ${IFDTOOL_PATH} ] ; then
|
|
echo "ifdtool not found at ${IFDTOOL_PATH}"
|
|
exit 1
|
|
fi
|
|
|
|
if [ ! "$me_clean" -gt 0 ] ; then
|
|
echo -e "Intel ME will ${RED}not${NC} be cleaned. Use -m if it should be."
|
|
else
|
|
echo -e "Intel ME will be ${GREEN}cleaned${NC}."
|
|
fi
|
|
|
|
if [ ! "$lock" -gt 0 ] ; then
|
|
echo -e "The flash ROM will be ${GREEN}unlocked${NC}."
|
|
else
|
|
echo -e "The flash ROM will be ${RED}locked${NC}."
|
|
fi
|
|
|
|
if [ "$me_clean" -gt 0 ] ; then
|
|
if [ ! -e ${ME_CLEANER_PATH} ] ; then
|
|
echo "me_cleaner not found at ${ME_CLEANER_PATH}"
|
|
rm -rf ${TEMP_DIR}
|
|
exit 1
|
|
fi
|
|
fi
|
|
|
|
echo "Start reading 2 times. Please be patient..."
|
|
if [[ ! "$TEMP_DIR" || ! -d "$TEMP_DIR" ]]; then
|
|
echo -e "${RED}Error:${NC} Could not create temp dir"
|
|
rm -rf ${TEMP_DIR}
|
|
exit 1
|
|
fi
|
|
flashrom -p linux_spi:dev=/dev/spidev0.0,spispeed=128 -c ${CHIPNAME} -r ${TEMP_DIR}/test1.rom
|
|
flashrom -p linux_spi:dev=/dev/spidev0.0,spispeed=128 -c ${CHIPNAME} -r ${TEMP_DIR}/test2.rom
|
|
cmp --silent ${TEMP_DIR}/test1.rom ${TEMP_DIR}/test2.rom
|
|
if [ "$have_backupname" -gt 0 ] ; then
|
|
cp ${TEMP_DIR}/test1.rom ${BACKUPNAME}
|
|
echo "current image saved as ${BACKUPNAME}"
|
|
fi
|
|
|
|
reference_size=8388608
|
|
TEMP_SIZE=$(wc -c <"$TEMP_DIR/test1.rom")
|
|
if [ ! "$reference_size" -eq "$TEMP_SIZE" ] ; then
|
|
echo -e "${RED}Error:${NC} didn't read 8M. You might be at the wrong chip."
|
|
rm -rf ${TEMP_DIR}
|
|
exit 1
|
|
fi
|
|
|
|
echo -e "${GREEN}connection ok${NC}"
|
|
|
|
echo "start unlocking ..."
|
|
if [ "$me_clean" -gt 0 ] ; then
|
|
${ME_CLEANER_PATH} -S -O ${TEMP_DIR}/work.rom ${TEMP_DIR}/test1.rom
|
|
else
|
|
cp ${TEMP_DIR}/test1.rom ${TEMP_DIR}/work.rom
|
|
fi
|
|
|
|
if [ ! "$lock" -gt 0 ] ; then
|
|
${IFDTOOL_PATH} -u ${TEMP_DIR}/work.rom
|
|
else
|
|
${IFDTOOL_PATH} -l ${TEMP_DIR}/work.rom
|
|
fi
|
|
|
|
if [ ! -e ${TEMP_DIR}/work.rom.new ] ; then
|
|
echo -e "${RED}Error:${NC} ifdtool failed. ${TEMP_DIR}/work.rom.new not found."
|
|
rm -rf ${TEMP_DIR}
|
|
exit 1
|
|
fi
|
|
if [ "$me_clean" -gt 0 ] ; then
|
|
echo -e "${GREEN}ifdtool and me_cleaner ok${NC}"
|
|
else
|
|
echo -e "${GREEN}ifdtool ok${NC}"
|
|
fi
|
|
make clean -C util/ifdtool
|
|
|
|
echo "start writing..."
|
|
flashrom -p linux_spi:dev=/dev/spidev0.0,spispeed=128 -c ${CHIPNAME} -w ${TEMP_DIR}/work.rom.new
|
|
rm -rf ${TEMP_DIR}
|
|
echo -e "${GREEN}DONE${NC}"
|