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# Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""This utility writes a firmware image to a tegra-based board.
This utility uses a number of libraries for its activity.
# Python imports
import optparse
import os
import sys
from fdt import Fdt
import write_firmware
from bundle_firmware import Bundle
import cros_output
from tools import Tools
from tools import CmdError
def _CheckTools(tools, options):
"""Check that all required tools are present.
This just does a simple presence test on the external tools we thing we
might need.
tools: Tools object to use to check tools.
Options: Command line options provided.
CmdError if a required tool is not found.
tools.CheckTool('fdtput', 'dtc')
tools.CheckTool('fdtget', 'dtc')
def _DoWriteFirmware(options, output, tools, update, verify, dest):
"""The main part of the cros_write_firmware code.
This takes the supplied options and performs the firmware write.
options: Parser options.
output: cros_output object to use.
tools: Tools object to use.
update: Use faster update algorithm rather then full device erase
verify: Verify the write by doing a readback and CRC
_CheckTools(tools, options)
tools.PrepareOutputDir(options.outdir, options.preserve)
bundle = Bundle(tools, output)
bundle.SetFiles(board=options.board, bct=options.bct,
exynos_bl1=options.exynos_bl1, exynos_bl2=options.exynos_bl2)
bundle.spl_source = options.spl_source
# Set up the fdt and options that we want.
fdt = bundle.SelectFdt(options.fdt)
# Write it to the board.
flasher = options.uboot_flasher
if not flasher:
flasher = bundle.uboot_fname
file_list = bundle.GetFiles()
write_firmware.DoWriteFirmware(output, tools, fdt, flasher,
file_list, options.image, bundle, update, verify, dest,
except (CmdError, ValueError) as err:
# For verbosity 4 we want to display all possible information
if options.verbosity >= 4:
def main():
"""Main function for cros_bundle_firmware."""
parser = optparse.OptionParser()
parser.add_option('-b', '--board', dest='board', type='string',
action='store', help='Board name to use (e.g. tegra2_kaen)')
parser.add_option('-B', '--boot', dest='spl_source', type='string',
action='store', help='Device for SPL to boot from (straps, spi, emmc)',
parser.add_option('--bl1', dest='exynos_bl1', type='string',
action='store', help='Exynos preboot (BL1) file')
parser.add_option('--bl2', dest='exynos_bl2', type='string',
action='store', help='Exynos Secondary Program Loader (SPL / BL2) file')
parser.add_option('-c', '--bct', dest='bct', type='string', action='store',
help='Path to BCT file for flasher: only one can be given')
parser.add_option('-d', '--dt', dest='fdt', type='string', action='store',
help='Path to fdt binary blob .dtb file to use for flasher')
parser.add_option('-f', '--full-erase', dest='full_erase',
action='store_true', help='Erase entire flash before writing (slow)')
parser.add_option('-F', '--flash', dest='flash_dest', type='string',
action='store', help='Create a flasher to flash the device (spi, mmc)')
parser.add_option('-i', '--image', dest='image', type='string',
action='store', help='Firmware image to write')
parser.add_option('-I', '--includedir', dest='includedirs', type='string',
action='append', help='Include directory to search for files')
parser.add_option('-O', '--outdir', dest='outdir', type='string',
action='store', help='Path to directory to use for intermediate and '
'output files')
parser.add_option('-p', '--preserve', dest='preserve', action='store_true',\
help='Preserve temporary output directory')
parser.add_option('-U', '--uboot-flasher', dest='uboot_flasher',
type='string', action='store', help='Executable bootloader file '
"(U-Boot) to use for flashing (defaults to board's u-boot.bin)")
parser.add_option('-v', '--verbosity', dest='verbosity', default=1,
type='int', help='Control verbosity: 0=silent, 1=progress, 3=full, '
parser.add_option('-V', '--verify', dest='verify', action='store_true',
help='Verify flash after writing')
parser.add_option('-w', '--write', dest='write', type='string',
action='store', default='usb', help='Write firmware to device (usb, sd)')
(options, args) = parser.parse_args(sys.argv)
if not options.image and len(args) > 1:
options.image = args[1]
del args[1]
if not options.image:
parser.error('Please use --image to specify a firmware image to flash');
if not options.board:
parser.error('Please use --board to specify the board type to flash');
if len(args) > 1:
parser.error("Unrecognized arguments '%s'" % ' '.join(args[1:]))
with cros_output.Output(options.verbosity) as output:
with Tools(output) as tools:
if options.includedirs:
tools.search_paths += options.includedirs
_DoWriteFirmware(options, output, tools, not options.full_erase,
options.verify, dest=options.write)
def _Test():
"""Run any built-in tests."""
import doctest
if __name__ == '__main__':
# If first argument is --test, run testing code.
if sys.argv[1:2] == ["--test"]: