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# SPDX-License-Identifier: GPL-2.0+
# Copyright 2023-2024 Marek Vasut <[email protected]>
# Written with much help from Simon Glass <[email protected]>
#
# Entry-type module for generating the i.MX8M mkimage -T imx8mimage
# configuration file and invocation of mkimage -T imx8mimage on the
# configuration file and input data.
#
from collections import OrderedDict
from binman.entry import Entry
from binman.etype.mkimage import Entry_mkimage
from binman.etype.section import Entry_section
from binman import elf
from dtoc import fdt_util
from u_boot_pylib import tools
class Entry_nxp_imx8mimage(Entry_mkimage):
"""NXP i.MX8M imx8mimage .cfg file generator and mkimage invoker
Properties / Entry arguments:
- nxp,boot-from - device to boot from (e.g. 'sd')
- nxp,loader-address - loader address (SPL text base)
- nxp,rom-version - BootROM version ('2' for i.MX8M Nano and Plus)
"""
def __init__(self, section, etype, node):
super().__init__(section, etype, node)
self.required_props = ['nxp,boot-from', 'nxp,rom-version',
'nxp,loader-address']
def ReadNode(self):
super().ReadNode()
self.boot_from = fdt_util.GetString(self._node, 'nxp,boot-from')
self.loader_address = fdt_util.GetInt(self._node, 'nxp,loader-address')
self.rom_version = fdt_util.GetInt(self._node, 'nxp,rom-version')
self.ReadEntries()
def BuildSectionData(self, required):
data, input_fname, uniq = self.collect_contents_to_file(
self._entries.values(), 'input')
# Generate mkimage configuration file similar to imx8mimage.cfg
# and pass it to mkimage to generate SPL image for us here.
cfg_fname = tools.get_output_filename('nxp.imx8mimage.cfg.%s' % uniq)
with open(cfg_fname, 'w') as outf:
print('ROM_VERSION v%d' % self.rom_version, file=outf)
print('BOOT_FROM %s' % self.boot_from, file=outf)
print('LOADER %s %#x' % (input_fname, self.loader_address), file=outf)
output_fname = tools.get_output_filename(f'cfg-out.{uniq}')
args = ['-d', input_fname, '-n', cfg_fname, '-T', 'imx8mimage',
output_fname]
if self.mkimage.run_cmd(*args) is not None:
return tools.read_file(output_fname)
else:
# Bintool is missing; just use the input data as the output
self.record_missing_bintool(self.mkimage)
return data
def SetImagePos(self, image_pos):
# Customized SoC specific SetImagePos which skips the mkimage etype
# implementation and removes the 0x48 offset introduced there. That
# offset is only used for uImage/fitImage, which is not the case in
# here.
upto = 0x00
for entry in super().GetEntries().values():
entry.SetOffsetSize(upto, None)
# Give up if any entries lack a size
if entry.size is None:
return
upto += entry.size
Entry_section.SetImagePos(self, image_pos)
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