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https://github.com/Telecominfraproject/OpenCellular.git
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01dc818924
Replace commands using gbb_utility by the new 'gbb' futility command. BRANCH=none BUG=None TEST=USE=test emerge-$BOARD vboot_reference Change-Id: I8c1547d295a955373413482509a33964b0e0c06f Signed-off-by: Hung-Te Lin <hungte@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/538442 Reviewed-by: Stefan Reinauer <reinauer@google.com>
116 lines
3.6 KiB
Bash
Executable File
116 lines
3.6 KiB
Bash
Executable File
#!/bin/sh
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#
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# Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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#
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# This script can change GBB flags in system live firmware or a given image
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# file.
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SCRIPT_BASE="$(dirname "$0")"
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. "$SCRIPT_BASE/common_minimal.sh"
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load_shflags || exit 1
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# DEFINE_string name default_value description flag
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DEFINE_string file "" "Path to firmware image. Default to system firmware." "f"
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DEFINE_boolean check_wp $FLAGS_TRUE "Check write protection states first." ""
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# Globals
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# ----------------------------------------------------------------------------
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set -e
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# Values from vboot_reference/firmware/include/gbb_header.h
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GBBFLAGS_DESCRIPTION="
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Defined flags (some values may be not supported by all systems):
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GBB_FLAG_DEV_SCREEN_SHORT_DELAY 0x00000001
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GBB_FLAG_LOAD_OPTION_ROMS 0x00000002
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GBB_FLAG_ENABLE_ALTERNATE_OS 0x00000004
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GBB_FLAG_FORCE_DEV_SWITCH_ON 0x00000008
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GBB_FLAG_FORCE_DEV_BOOT_USB 0x00000010
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GBB_FLAG_DISABLE_FW_ROLLBACK_CHECK 0x00000020
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GBB_FLAG_ENTER_TRIGGERS_TONORM 0x00000040
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GBB_FLAG_FORCE_DEV_BOOT_LEGACY 0x00000080
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GBB_FLAG_FAFT_KEY_OVERIDE 0x00000100
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GBB_FLAG_DISABLE_EC_SOFTWARE_SYNC 0x00000200
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GBB_FLAG_DEFAULT_DEV_BOOT_LEGACY 0x00000400
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GBB_FLAG_DISABLE_PD_SOFTWARE_SYNC 0x00000800
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GBB_FLAG_DISABLE_LID_SHUTDOWN 0x00001000
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GBB_FLAG_FORCE_DEV_BOOT_FASTBOOT_FULL_CAP 0x00002000
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GBB_FLAG_ENABLE_SERIAL 0x00004000
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To get a developer-friendly device, try 0x11 (short_delay + boot_usb).
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For factory-related tests (always DEV), try 0x39.
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For early development (disable EC/PD software sync), try 0xa39.
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"
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FLAGS_HELP="Changes ChromeOS Firmware GBB Flags value.
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Usage: $0 [option_flags] GBB_FLAGS_VALUE
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$GBBFLAGS_DESCRIPTION"
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FLASHROM_COMMON_OPT="-p host"
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FLASHROM_READ_OPT="$FLASHROM_COMMON_OPT -i GBB -r"
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FLASHROM_WRITE_OPT="$FLASHROM_COMMON_OPT -i GBB --fast-verify -w"
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# Check write protection
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# ----------------------------------------------------------------------------
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check_write_protection() {
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local hw_wp="" sw_wp=""
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if ! crossystem "wpsw_boot?0"; then
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hw_wp="on"
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fi
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local wp_states="$(flashrom $FLASHROM_COMMON_OPT --wp-status 2>/dev/null \
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| grep WP)"
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local wp_disabled="$(echo "$wp_states" | grep "WP:.*is disabled.")"
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local wp_zero_len="$(echo "$wp_states" | grep "WP:.*, len=0x00000000")"
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if [ -z "$wp_disabled" -a -z "$wp_zero_len" ]; then
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sw_wp="on"
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fi
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if [ -n "$hw_wp" -a -n "$sw_wp" ]; then
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return $FLAGS_FALSE
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fi
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return $FLAGS_TRUE
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}
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# Main
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# ----------------------------------------------------------------------------
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main() {
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if [ "$#" != "1" ]; then
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flags_help
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exit 1
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fi
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local value="$(($1))"
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local image_file="$FLAGS_file"
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if [ -z "$FLAGS_file" ]; then
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image_file="$(make_temp_file)"
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flashrom $FLASHROM_READ_OPT "$image_file"
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fi
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# Process file
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local old_value="$(futility gbb -g --flags "$image_file")"
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printf "Setting GBB flags from %s to 0x%x.." "$old_value" "$value" >&2
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futility gbb -s --flags="$value" "$image_file"
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if [ -z "$FLAGS_file" ]; then
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if [ "$FLAGS_check_wp" = "$FLAGS_TRUE" ]; then
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if ! check_write_protection; then
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echo ""
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echo "WARNING: System GBB Flags are NOT changed!!!"
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echo "ERROR: You must disable write protection before setting flags."
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exit 1
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fi
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fi
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flashrom $FLASHROM_WRITE_OPT "$image_file"
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fi
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}
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# Parse command line
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FLAGS "$@" || exit 1
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ORIGINAL_PARAMS="$@"
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eval set -- "$FLAGS_ARGV"
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main "$@"
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