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flash_ec: Set a 10-minute timeout for flashing EC

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The flash_ec script is called by the lab infrastructure to flash
the EC firmware of DUT. To prevent the EC flashing tool hanged
forever (may be caused by some bugs), set a 10-minute timeout to
force it to be killed.

BRANCH=none
BUG=chromium:514810
TEST=Patched the change to servo v3. Triggered flash_ec to flash EC
on Jerry. Set the timeout to a small value to force to kill itself.

test2:
  ./flash_ec --board=hadoken   # or samus, anything using openocd
  remove the USB cable half way through (openocd hangs)
  ps au | grep openocd

Change-Id: I39ad8659b41764fd0dba30a86eca301fbbc5243f
Signed-off-by: Tom Wai-Hong Tam <waihong@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/289247
Commit-Queue: Myles Watson <mylesgw@chromium.org>
This commit is contained in:
Tom Wai-Hong Tam
2015-07-29 05:26:24 +08:00
committed by ChromeOS Commit Bot
parent b61de792ef
commit 12495e2b40
1 changed files with 12 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
util/flash_ec
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@@ -100,6 +100,8 @@ DEFINE_string chip "" \
"The chip to run debugger on."
DEFINE_string image "" \
"Full pathname of the EC firmware image to flash."
DEFINE_integer timeout 600 \
"Timeout for flashing the EC, measured in seconds."
DEFINE_string offset "0" \
"Offset where to program the image from."
DEFINE_integer port 9999 \
@@ -328,7 +330,8 @@ function flash_openocd() {
dut_control jtag_buf_on_flex_en:on
dut_control jtag_buf_en:on
sudo openocd -s "${OCD_PATH}" -f "${OCD_CFG}" -f "${OCD_CHIP_CFG}" \
sudo timeout -k 10 -s 9 "${FLAGS_timeout}" \
openocd -s "${OCD_PATH}" -f "${OCD_CFG}" -f "${OCD_CHIP_CFG}" \
-c "${OCD_CMDS}" || \
die "Failed to program ${IMG}"
}
@@ -356,7 +359,8 @@ function flash_stm32() {
# Reset the EC
ec_reset
# Unprotect flash, erase, and write
${STM32MON} -d ${EC_UART} -U -u -e -w "${IMG}"
timeout -k 10 -s 9 "${FLAGS_timeout}" \
${STM32MON} -d ${EC_UART} -U -u -e -w "${IMG}"
# Remove the Application processor reset
# TODO(crosbug.com/p/30738): we cannot rely on servo_VARS to restore it
if $(servo_has_warm_reset); then
@@ -382,11 +386,13 @@ function flash_stm32_dfu() {
SIZE=$(wc -c ${IMG} | cut -d' ' -f1)
# Remove read protection
sudo $DFU_UTIL -a 0 -s ${ADDR}:${SIZE}:force:unprotect -D "${IMG}"
sudo timeout -k 10 -s 9 "${FLAGS_timeout}" \
$DFU_UTIL -a 0 -s ${ADDR}:${SIZE}:force:unprotect -D "${IMG}"
# Wait for mass-erase and reboot after unprotection
sleep 1
# Actual image flashing
sudo $DFU_UTIL -a 0 -s ${ADDR}:${SIZE} -D "${IMG}"
sudo timeout -k 10 -s 9 "${FLAGS_timeout}" \
$DFU_UTIL -a 0 -s ${ADDR}:${SIZE} -D "${IMG}"
}
function flash_lm4() {
@@ -444,7 +450,8 @@ function flash_mec1322() {
cat $IMG
} > $T
sudo ${FLASHROM} ${FLASHROM_PARAM} -w "${T}"
sudo timeout -k 10 -s 9 "${FLAGS_timeout}" \
${FLASHROM} ${FLASHROM_PARAM} -w "${T}"
rm $T