From: Simon Glass <sjg@chromium.org>
To: linux-arm-kernel@lists.infradead.org
Cc: Masahiro Yamada <masahiroy@kernel.org>,
Ahmad Fatoum <a.fatoum@pengutronix.de>,
Nicolas Schier <nicolas@fjasle.eu>,
Simon Glass <sjg@chromium.org>,
Catalin Marinas <catalin.marinas@arm.com>,
Jonathan Corbet <corbet@lwn.net>,
Nathan Chancellor <nathan@kernel.org>,
Nick Terrell <terrelln@fb.com>, Will Deacon <will@kernel.org>,
linux-doc@vger.kernel.org, linux-kbuild@vger.kernel.org,
linux-kernel@vger.kernel.org, workflows@vger.kernel.org
Subject: [PATCH v12 0/2] arm64: Add a build target for Flat Image Tree
Date: Fri, 29 Mar 2024 16:28:34 +1300 [thread overview]
Message-ID: <20240329032836.141899-1-sjg@chromium.org> (raw)
Flat Image Tree (FIT) is a widely used file format for packaging a
kernel and associated devicetree files[1]. It is not specific to any
one bootloader, as it is supported by U-Boot, coreboot, Linuxboot,
Tianocore and Barebox.
This series adds support for building a FIT as part of the kernel
build. This makes it easy to try out the kernel - just load the FIT
onto your tftp server and it will run automatically on any supported
arm64 board.
The script is written in Python, since it is easy to build a FIT using
the Python libfdt bindings. For now, no attempt is made to compress
files in parallel, so building the 900-odd files takes a while, about
6 seconds with my testing.
The series also includes a minor clean-up patch.
[1] https://github.com/open-source-firmware/flat-image-tree
Changes in v12:
- Avoid showing FIT message if V=0
Changes in v11:
- Use dtbslist file in image.fit rule
- Update cmd_fit rule as per Masahiro
- Don't mention ignoring files without a .dtb prefix
- Use argparse fromfile_prefix_chars feature
- Add a -v option and use it for output (with make V=1)
- rename srcdir to dtbs
- Use -o for the output file instead of -f
Changes in v10:
- Make use of dtbs-list file
- Mention dtbs-list and FIT_COMPRESSION
- Update copyright year
- Update cover letter to take account of an applied patch
Changes in v9:
- Move the compression control into Makefile.lib
Changes in v8:
- Drop compatible string in FDT node
- Correct sorting of MAINTAINERS to before ARM64 PORT
- Turn compress part of the make_fit.py comment in to a sentence
- Add two blank lines before parse_args() and setup_fit()
- Use 'image.fit: dtbs' instead of BUILD_DTBS var
- Use '$(<D)/dts' instead of '$(dir $<)dts'
- Add 'mkimage' details Documentation/process/changes.rst
- Allow changing the compression used
- Tweak cover letter since there is only one clean-up patch
Changes in v7:
- Drop the kbuild tag
- Add Image as a dependency of image.fit
- Drop kbuild tag
- Add dependency on dtbs
- Drop unnecessary path separator for dtbs
- Rebase to -next
Changes in v6:
- Drop the unwanted .gz suffix
Changes in v5:
- Drop patch previously applied
- Correct compression rule which was broken in v4
Changes in v4:
- Use single quotes for UIMAGE_NAME
Changes in v3:
- Drop temporary file image.itk
- Drop patch 'Use double quotes for image name'
- Drop double quotes in use of UIMAGE_NAME
- Drop unnecessary CONFIG_EFI_ZBOOT condition for help
- Avoid hard-coding "arm64" for the DT architecture
Changes in v2:
- Drop patch previously applied
- Add .gitignore file
- Move fit rule to Makefile.lib using an intermediate file
- Drop dependency on CONFIG_EFI_ZBOOT
- Pick up .dtb files separately from the kernel
- Correct pylint too-many-args warning for write_kernel()
- Include the kernel image in the file count
- Add a pointer to the FIT spec and mention of its wide industry usage
- Mention the kernel version in the FIT description
Simon Glass (2):
arm64: Add BOOT_TARGETS variable
arm64: boot: Support Flat Image Tree
Documentation/process/changes.rst | 9 +
MAINTAINERS | 7 +
arch/arm64/Makefile | 11 +-
arch/arm64/boot/.gitignore | 1 +
arch/arm64/boot/Makefile | 6 +-
scripts/Makefile.lib | 16 ++
scripts/make_fit.py | 290 ++++++++++++++++++++++++++++++
7 files changed, 337 insertions(+), 3 deletions(-)
create mode 100755 scripts/make_fit.py
--
2.34.1
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next reply other threads:[~2024-03-29 3:29 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-29 3:28 Simon Glass [this message]
2024-03-29 3:28 ` [PATCH v12 1/2] arm64: Add BOOT_TARGETS variable Simon Glass
2024-03-29 3:28 ` [PATCH v12 2/2] arm64: boot: Support Flat Image Tree Simon Glass
2024-03-29 10:00 ` Masahiro Yamada
2024-04-12 16:06 ` [PATCH v12 0/2] arm64: Add a build target for " Will Deacon
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