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rpi-eeprom-update: Add retries and verification to flashrom stage

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Retry flashrom updates on failure and explicitly verify the images.
So far, there haven't been any reports of flashrom failures but
retrying is the best course of action in case this failure ever
occurs.
This commit is contained in:
Tim Gover
2024-12-08 18:36:39 +00:00
committed by timg236
parent fe7bfc7201
commit af0426b473
1 changed files with 27 additions and 2 deletions
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29
rpi-eeprom-update
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@@ -189,6 +189,32 @@ prepareImage()
fi
}
runFlashrom()
{
attempts=5
freq=16000
# If flashrom fails then retry at a lower speed.
while [ ${attempts} -gt 0 ]; do
echo "flashrom -p linux_spi:dev=${SPIDEV},spispeed=${freq} -w ${BOOTFS}/pieeprom.upd"
if flashrom -p linux_spi:dev=${SPIDEV},spispeed=${freq} -w "${BOOTFS}/pieeprom.upd" >> "${FLASHROM_LOG}"; then
echo "Verifying update"
if flashrom -p linux_spi:dev=${SPIDEV},spispeed=${freq} -v "${BOOTFS}/pieeprom.upd" >> "${FLASHROM_LOG}"; then
echo "VERIFY: SUCCESS"
return 0
else
echo "VERIFY: FAIL"
fi
fi
freq=8000
attempts=$((attempts - 1))
if [ ${attempts} -gt 0 ]; then
echo "Failed to update bootloader using flashrom. Retrying."
fi
done
return 1
}
applyRecoveryUpdate()
{
[ -n "${BOOTLOADER_UPDATE_IMAGE}" ] || [ -n "${VL805_UPDATE_IMAGE}" ] || die "No update images specified"
@@ -266,8 +292,7 @@ applyRecoveryUpdate()
echo "a bootloader rescue SD card image which restores the default bootloader image."
echo
FLASHROM_LOG="$(mktemp)"
echo "flashrom -p linux_spi:dev=${SPIDEV},spispeed=16000 -w ${BOOTFS}/pieeprom.upd"
if flashrom -p linux_spi:dev=${SPIDEV},spispeed=16000 -w "${BOOTFS}/pieeprom.upd" > "${FLASHROM_LOG}"; then
if runFlashrom; then
# Success - remove update files from the boot partition
removePreviousUpdates
echo "UPDATE SUCCESSFUL"