U-Boot

# Copyright 2020 Google LLC
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# This can be included by config files to set the cros_servo_port and
# console_dev variables.

# It requires:
# - standalone-hdctools to be installed at the same level as u-boot-test-hooks
#     (i.e. at /path/to/u-boot-test-hooks/../standalone-hdctools)
# - a servo board connected. Servo is used to control resetting the board and to
#     access the serial console
# - a servodrc also at the directory above u-boot-test-hooks (see sample below)
# - 'servo_name' variable set to the board name, before including this script

# Install hdctools here
# https://chromium.googlesource.com/a/chromiumos/platform/standalone-hdctools

# Information on servo here:
# https://chromium.googlesource.com/chromiumos/third_party/hdctools/+/refs/heads/master/README.md

# the ubtest directory holds u-boot-test-hooks and other things
UBTEST_DIR="$(dirname "$(dirname "$(dirname "${BASH_SOURCE[0]}")")")"
RCFILE="${UBTEST_DIR}/servodrc"
DUT_CONTROL="${UBTEST_DIR}/standalone-hdctools/dut-control"

# Look up the servo_name and get the port number
cros_servo_port="$(grep ^${cros_servo_name}, ${RCFILE} |cut -f3 -d,)"
if [ -z "${cros_servo_port}" ]; then
    echo "Failed to find servo port for ${cros_servo_name}"
    exit 1
fi

# Find the console
console_dev="$(${DUT_CONTROL} -p ${cros_servo_port} cpu_uart_pty |cut -f2 -d:)"
if [ -z "${console_dev}" ]; then
    echo "Failed to find console for ${cros_servo_name}"
    exit 1
fi


# Here is a sample servodrc
# This file describes servo boards connected to this host.
#
# Line text starting with # to end of line is ignored, as well as empy lines.
#
# Configuration lines consist of up to 4 comma separated fields, the last
# two are optional:
#
# name serial-number port-number board
#
# Remove the # from the next line
# link, 905537-00223, 9902, link