mirror of
https://github.com/Dasharo/flashrom.git
synced 2026-03-06 14:49:20 -08:00
Maciej Pijanowski
10ea2acaaa
Change-Id: I0f5a8f760660eae77e97c8b1a5c7dcf3dc6ba61d Signed-off-by: Maciej Pijanowski <maciej.pijanowski@3mdeb.com>
146 lines
3.2 KiB
Bash
Executable File
146 lines
3.2 KiB
Bash
Executable File
#!/bin/sh
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# Set these according to the chip you want to use
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CHIP_THINKPAD_SPI1="MX25L6406E/MX25L6408E"
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CHIP_THINKPAD_SPI2="MX25L3206E/MX25L3208E"
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FLASHROM_CHIP="-c $CHIP_THINKPAD_SPI2"
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WP_RANGE="0,0x00400000"
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errorExit() {
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errorMessage="$1"
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echo "$errorMessage"
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exit 1
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}
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errorCheck() {
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errorCode=$?
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errorMessage="$1"
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[ "$errorCode" -ne 0 ] && errorExit "$errorMessage : ($errorCode)"
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}
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usage() {
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echo "${0} command [FILE]"
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echo "Available commands:"
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echo " - probe - probe flash"
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echo " - read FILE - read flash to FILE"
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echo " - write FILE - flash to FILE"
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echo "For example:"
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echo "${0} probe"
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echo "${0} read flash.rom"
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echo "${0} write flash.rom"
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exit 0
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}
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SPI_DEV="/dev/spidev1.0"
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SPI_SPEED="16000"
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FLASHROM_PROGRAMMER="linux_spi:dev=$SPI_DEV,spispeed=$SPI_SPEED"
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[ $# -eq 0 ] && usage
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spiON() {
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echo "set SPI Vcc to 3.3V"
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# 0 - 1.8V , 1 - 3.3V
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echo 1 > /sys/class/gpio/gpio405/value
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sleep 1
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echo "SPI lines ON"
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echo 1 > /sys/class/gpio/gpio404/value
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sleep 1
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echo "SPI Vcc ON"
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echo 1 > /sys/class/gpio/gpio406/value
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sleep 2
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}
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spiOFF() {
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echo "SPI Vcc OFF"
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echo 0 > /sys/class/gpio/gpio406/value
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echo "SPI lines OFF"
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echo 0 > /sys/class/gpio/gpio404/value
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echo 0 > /sys/class/gpio/gpio405/value
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}
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CMD="$1"
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FILE="$2"
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case "$CMD" in
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"probe")
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spiON
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echo "Probing ..."
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flashrom -p "$FLASHROM_PROGRAMMER" $FLASHROM_CHIP
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sleep 1
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spiOFF
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;;
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"read")
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[ -z "$FILE" ] && errorExit "FILE not given"
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spiON
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echo "Reading ..."
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flashrom -p "$FLASHROM_PROGRAMMER" -r "$FILE" $FLASHROM_CHIP
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sleep 1
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spiOFF
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;;
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"write")
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[ -z "$FILE" ] && errorExit "FILE not given"
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spiON
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echo "Writing ..."
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flashrom -p "$FLASHROM_PROGRAMMER" -w "$FILE" "$FLASHROM_CHIP"
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sleep 1
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spiOFF
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;;
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"wp-list")
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spiON
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echo "Checking WP list ..."
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flashrom -p "$FLASHROM_PROGRAMMER" --wp-list $FLASHROM_CHIP
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sleep 1
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spiOFF
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;;
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"wp-status")
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spiON
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echo "Checking WP status ..."
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flashrom -p "$FLASHROM_PROGRAMMER" --wp-status $FLASHROM_CHIP
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sleep 1
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spiOFF
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;;
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"wp-enable")
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spiON
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echo "Setting WP region ..."
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flashrom -p "$FLASHROM_PROGRAMMER" --wp-range="$WP_RANGE" $FLASHROM_CHIP
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sleep 1
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echo "Enabling WP region ..."
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flashrom -p "$FLASHROM_PROGRAMMER" --wp-enable $FLASHROM_CHIP
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sleep 1
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spiOFF
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;;
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"wp-disable")
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spiON
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echo "Disabling WP protection ..."
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flashrom -p "$FLASHROM_PROGRAMMER" --wp-disable $FLASHROM_CHIP
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sleep 1
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echo "Clearing WP region ..."
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flashrom -p "$FLASHROM_PROGRAMMER" --wp-range=0,0 $FLASHROM_CHIP
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sleep 1
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spiOFF
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;;
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"erase")
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spiON
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echo "Erasing chip ..."
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flashrom -p "$FLASHROM_PROGRAMMER" -E $FLASHROM_CHIP
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sleep 1
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spiOFF
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;;
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"wp-high")
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echo "Setting WP pin HIGH ..."
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echo "out" > /sys/class/gpio/gpio402/direction
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# deassert WP pin to disable hardware protection of status registers
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echo "1" > /sys/class/gpio/gpio402/value
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;;
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"wp-low")
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echo "Setting WP pin LOW ..."
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echo "out" > /sys/class/gpio/gpio402/direction
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# assert WP pin to enable hardware protection of status registers
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echo "0" > /sys/class/gpio/gpio402/value
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;;
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*)
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echo "Command \"$CMD\" is not supported"
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usage
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;;
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esac
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