heads/initrd/bin/flash.sh
Sebastian McMillan f0d85ba2d7
Flash.sh cleanup : flashrom specifics now in board configs (#592)
Flash.sh cleanup : flashrom specifics now in board configs (#592)
2020-02-19 12:04:56 -05:00

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#!/bin/sh
#
# based off of flashrom-x230
#
set -e -o pipefail
. /etc/functions
. /tmp/config
case "$FLASHROM_OPTIONS" in
-* )
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
flash_rom() {
ROM=$1
if [ "$READ" -eq 1 ]; then
flashrom $FLASHROM_OPTIONS -r "${ROM}.1" \
|| die "$ROM: Read failed"
flashrom $FLASHROM_OPTIONS -r "${ROM}.2" \
|| die "$ROM: Read failed"
flashrom $FLASHROM_OPTIONS -r "${ROM}.3" \
|| die "$ROM: Read failed"
if [ `sha256sum ${ROM}.[123] | cut -f1 -d ' ' | uniq | wc -l` -eq 1 ]; then
mv ${ROM}.1 $ROM
rm ${ROM}.[23]
else
die "$ROM: Read inconsistent"
fi
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 -r serial_number > /tmp/serial 2>/dev/null; then
echo "Persisting system serial"
cbfs -o /tmp/${CONFIG_BOARD}.rom -d serial_number 2>/dev/null || true
cbfs -o /tmp/${CONFIG_BOARD}.rom -a serial_number -f /tmp/serial
fi
flashrom $FLASHROM_OPTIONS -w /tmp/${CONFIG_BOARD}.rom \
|| die "$ROM: Flash failed"
fi
}
if [ "$1" == "-c" ]; then
CLEAN=1
READ=0
ROM="$2"
elif [ "$1" == "-r" ]; then
CLEAN=0
READ=1
ROM="$2"
touch $ROM
else
CLEAN=0
READ=0
ROM="$1"
fi
if [ ! -e "$ROM" ]; then
die "Usage: $0 [-c|-r] <path_to_image.rom>"
fi
flash_rom $ROM
exit 0