Add new binman etype derived from mkimage etype which generates configuration input file for mkimage -T imx8mimage, and runs the mkimage on input data. The mkimage -T imx8mimage is used to generate combined image with SPL and DDR PHY blobs which is bootable on i.MX8M.
The configuration file generated here is equivalent of imx8mimage.cfg, which is the file passed to '$ mkimage -T imx8mimage -n imx8mimage.cfg ...' . The settings generated into the imx8mimage.cfg file are configured via supported binman DT properties, nxp,boot-from, nxp,loader-address, nxp,rom-version.
Signed-off-by: Marek Vasut marex@denx.de --- Cc: "NXP i.MX U-Boot Team" uboot-imx@nxp.com Cc: Adam Ford aford173@gmail.com Cc: Alper Nebi Yasak alpernebiyasak@gmail.com Cc: Andrejs Cainikovs andrejs.cainikovs@toradex.com Cc: Angus Ainslie angus@akkea.ca Cc: Emanuele Ghidoli emanuele.ghidoli@toradex.com Cc: Fabio Estevam festevam@gmail.com Cc: Francesco Dolcini francesco.dolcini@toradex.com Cc: Marcel Ziswiler marcel.ziswiler@toradex.com Cc: Rasmus Villemoes rasmus.villemoes@prevas.dk Cc: Simon Glass sjg@chromium.org Cc: Stefan Eichenberger stefan.eichenberger@toradex.com Cc: Stefano Babic sbabic@denx.de Cc: Tim Harvey tharvey@gateworks.com Cc: Tom Rini trini@konsulko.com Cc: kernel@puri.sm Cc: u-boot@dh-electronics.com Cc: u-boot@lists.denx.de --- V2: Fix pylint errors --- tools/binman/etype/nxp_imx8mimage.py | 74 ++++++++++++++++++++++++++++ 1 file changed, 74 insertions(+) create mode 100644 tools/binman/etype/nxp_imx8mimage.py
diff --git a/tools/binman/etype/nxp_imx8mimage.py b/tools/binman/etype/nxp_imx8mimage.py new file mode 100644 index 00000000000..3585120b79b --- /dev/null +++ b/tools/binman/etype/nxp_imx8mimage.py @@ -0,0 +1,74 @@ +# SPDX-License-Identifier: GPL-2.0+ +# Copyright 2023-2024 Marek Vasut marex@denx.de +# Written with much help from Simon Glass sjg@chromium.org +# +# 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)