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141 lines
3.3 KiB
141 lines
3.3 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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have_input_image=0
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have_chipname=0
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have_backupname=0
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autodetect_chip=0
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usage()
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{
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echo "Usage: $0 -i <image.rom> [-c <chipname>] [-a] [-k <backup_filename>]"
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echo ""
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echo " -i <path to image to flash>"
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echo " -c <chipname> for flashrom"
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echo " -a ... try autodetecting the chipname"
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echo " -k <path to backup to save>"
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}
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args=$(getopt -o i:c:ak: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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-i)
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INPUT_IMAGE_PATH=$2
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have_input_image=1
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shift
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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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-a)
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autodetect_chip=1
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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_input_image" -gt 0 ] ; then
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echo "no input image provided"
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usage
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exit 1
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fi
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TEMP_DIR=`mktemp -d`
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if [ ! "$have_chipname" -gt 0 ] ; then
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if [ ! "$autodetect_chip" -gt 0 ] ; then
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echo -e "${RED}no chipname provided${NC}. To get it, we run:"
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echo "flashrom -p linux_spi:dev=/dev/spidev0.0,spispeed=128"
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flashrom -p linux_spi:dev=/dev/spidev0.0,spispeed=128
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usage
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rm -rf ${TEMP_DIR}
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exit 1
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else
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echo "trying to detect the chip..."
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flashrom -p linux_spi:dev=/dev/spidev0.0,spispeed=128 &> ${TEMP_DIR}/chips || true
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flashrom_error=""
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flashrom_error=$(cat ${TEMP_DIR}/chips | grep -i error)
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if [ ! -z "${flashrom_error}" ] ; then
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cat ${TEMP_DIR}/chips
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rm -rf ${TEMP_DIR}
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exit 1
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fi
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CHIPNAME=""
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chip_found=0
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CHIPNAME=$(cat ${TEMP_DIR}/chips | grep Found | grep "MX25L3206E" | grep -o '".*"')
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if [ ! -z "${CHIPNAME}" ] ; then
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chip_found=1
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fi
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if [ ! "$chip_found" -gt 0 ] ; then
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echo -e "${RED}Error:${NC} chip not detected. Please find it manually:"
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flashrom -p linux_spi:dev=/dev/spidev0.0,spispeed=128
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rm -rf ${TEMP_DIR}
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exit 1
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else
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echo -e "Detected ${GREEN}${CHIPNAME}${NC}."
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fi
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fi
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fi
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INPUT_IMAGE_NAME=$(basename ${INPUT_IMAGE_PATH})
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INPUT_IMAGE_SIZE=$(wc -c <"$INPUT_IMAGE_PATH")
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reference_filesize=4194304
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if [ ! "$INPUT_IMAGE_SIZE" -eq "$reference_filesize" ] ; then
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echo -e "${RED}Error:${NC} input file must be 4MB of size"
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exit 1
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fi
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echo "verifying SPI connection by reading 2 times. please wait."
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if [[ ! "$TEMP_DIR" || ! -d "$TEMP_DIR" ]]; then
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echo "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 ${BACKUPNAME}"
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fi
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TEMP_SIZE=$(wc -c <"$TEMP_DIR/test1.rom")
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if [ ! "$INPUT_IMAGE_SIZE" -eq "$TEMP_SIZE" ] ; then
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echo -e "${RED}Error:${NC} read image (${TEMP_SIZE}) has different size that new image $INPUT_IMAGE_NAME (${INPUT_IMAGE_SIZE})"
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exit 1
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fi
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rm -rf ${TEMP_DIR}
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echo -e "${GREEN}connection ok${NC}. flashing ${INPUT_IMAGE_NAME}"
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flashrom -p linux_spi:dev=/dev/spidev0.0,spispeed=128 -c ${CHIPNAME} -w ${INPUT_IMAGE_PATH}
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echo -e "${GREEN}DONE${NC}"
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