summaryrefslogtreecommitdiff
path: root/scripts/dtc
AgeCommit message (Collapse)Author
2025-06-26pylibfdt: correct license information (further)Quentin Schulz
Since commit 51ec8db23280 ("pylibfdt: correct license information"), the License classifiers are gone so I assume setuptools now extract the license from the license argument to setuptools.setup() function. It's always been incorrect as far as I could tell, so let's fix this with the appropriate info from the SPDX License identifier at the top of the file. It was missing GPL-2.0-or-later and we disambiguate by using BSD-2-Clause instead of simply BSD. Fixes: 6b08fb5cc44f ("fdt: Move to setuptools") Signed-off-by: Quentin Schulz <quentin.schulz@cherry.de>
2025-06-09pylibfdt: correct license informationHeinrich Schuchardt
Setuptools 78.1.1 shows warnings: * Pattern 'GPL' did not match any files. * Pattern 'BSD-2-Clause' did not match any files. * SetuptoolsDeprecationWarning: License classifiers are deprecated. Cf. https://packaging.python.org/en/latest/guides/writing-pyproject-toml/#license Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com> Reviewed-by: Bryan Brattlof <bb@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com>
2025-04-10dtc: introduce label relative path referencesPatrice Chotard
Since introduction of OF_UPSTREAM flag, U-Boot's dtc must be able to compile Kernel's device tree. Since kernel commit 7de129f5389b ("ARM: dts: stm32: stm32mp151a-prtt1l: Fix QSPI configuration"), label relative path references has been introduced. These label relative path references is not supported by current U-Boot dtc version 1.5.0: (see mailing list discussion [1]). In order to support such label relative patch references adds following commit from upstream DTC tree: commit 651410e54cb9 ("util: introduce xstrndup helper") commit ec7986e682cf ("dtc: introduce label relative path references") [1] https://lore.kernel.org/all/20250115144428.GZ3476@bill-the-cat/T/ Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com> Cc: Tom Rini <trini@konsulko.com> Cc: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2024-10-30scripts/dtc/pylibfdt/libfdt.i_shipped: Use SWIG_AppendOutputMarkus Volk
Swig has changed language specific AppendOutput functions. The helper macro SWIG_AppendOutput remains unchanged. Use that instead of SWIG_Python_AppendOutput, which would require an extra parameter since swig 4.3.0. /home/flk/poky/build-test/tmp/work/qemux86_64-poky-linux/u-boot/2024.10/git/arch/x86/cpu/u-boot-64.lds | scripts/dtc/pylibfdt/libfdt_wrap.c: In function ‘_wrap_fdt_next_node’: | scripts/dtc/pylibfdt/libfdt_wrap.c:5581:17: error: too few arguments to function ‘SWIG_Python_AppendOutput’ | 5581 | resultobj = SWIG_Python_AppendOutput(resultobj, val); | | ^~~~~~~~~~~~~~~~~~~~~~~~ Signed-off-by: Markus Volk <f_l_k@t-online.de> Reported-by: Rudi Heitbaum <rudi@heitbaum.com> Link: https://github.com/dgibson/dtc/pull/154
2024-07-15scripts: Remove duplicate newlinesMarek Vasut
Drop all duplicate newlines. No functional change. Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
2024-03-01pylibfdt: Fix "invalid escape sequence '\w'" in setup.pyFlorian Schmaus
Once u-boot's build system invokes python3 scripts/dtc/pylibfdt/setup.py --quiet build_ext --inplace it may fail with scripts/dtc/pylibfdt/setup.py:40: SyntaxWarning: invalid escape sequence '\w' RE_KEY_VALUE = re.compile('(?P<key>\w+) *(?P<plus>[+])?= *(?P<value>.*)$') depending on the used Python version. Explicitly mark the regex string as raw string to avoid the warning. Signed-off-by: Florian Schmaus <flo@geekplace.eu> Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2023-09-22Allow Python packages to be droppedSimon Glass
When building in a portage chroot, we do not have the environment needed to build pylibfdt. It is instead build as a separate package. Provide a build option to tell U-Boot to skip this part of the build. We still need it to use binman, etc. but don't need it to build its dependencies. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Mike Frysinger <vapier@chromium.org> [s/build bytes/builds bytes in tools.rst] Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2023-01-07pylibfdt: Allow version normalization to failTom Rini
In some cases, we might not have the sic portion of setuputils available. Make our import and use of this be done in try/except blocks as this is done to suppress a run-time warning that is otherwise non-fatal. Reported-by: Pali Rohár <pali@kernel.org> Fixes: 141659187667 ("pylibfdt: Fix disable version normalization") Signed-off-by: Tom Rini <trini@konsulko.com>
2023-01-06pylibfdt: Fix disable version normalizationPhilippe Schenker
On Arch Linux based systems python setuptools does not contain "setuptools.extern" hence it is failing with the following error-message: " ModuleNotFoundError: No module named 'setuptools.extern' " According to a eschwartz `setuptools.extern` is not a public API and shall not be assumed to be present in the setuptools package. He mentions that the setuptools project anyway wants to drop this. [1] Use the correct solution introduced by python setuptools developers to disable normalization. [2] [1] https://bbs.archlinux.org/viewtopic.php?id=259608 [2] https://github.com/pypa/setuptools/pull/2026 Fixes: 440098c42e73 ("pylibfdt: Fix version normalization warning") Signed-off-by: Philippe Schenker <philippe.schenker@toradex.com> Reviewed-by: Marek Vasut <marex@denx.de> Reviewed-by: Simon Glass <sjg@chromium.org>
2022-12-22pylibfdt: Fix version normalization warningMarek Vasut
Fix the following version normalization warning: " /usr/lib/python3/dist-packages/setuptools/dist.py:530: UserWarning: Normalizing '2023.01' to '2023.1' " Using suggestion from Richard Jones: https://github.com/pypa/setuptools/issues/308#issuecomment-405817468 Signed-off-by: Marek Vasut <marex@denx.de> Reviewed-by: Simon Glass <sjg@chromium.org>
2022-10-29fdt: Move to setuptoolsSimon Glass
The distutils package is deprecated. The upstream libfdt repo uses setuptools for building the pylibfdt module, so bring in that code, suitably modified for U-Boot. Also bring in the README. The modifications include setting the version correctly, making use of the environment variables provided by the Makefile and various tweaks to the directories. Note that the version omits the minus character at the start of EXTRAVERSION, since this creates a warning. The build is really just used within U-Boot itself, so it doesn't matter too much if the version matches upstream, or exactly matches U-Boot. Signed-off-by: Simon Glass <sjg@chromium.org>
2022-10-29libfdt: Fix build with python 3.10Michal Suchanek
Python 3.10 requires defining PY_SSIZE_T_CLEAN. This will be fixed in swig 4.10 but it is not clear when it will be released. There was a warning since python 3.8. Link: https://github.com/swig/swig/pull/2277 Signed-off-by: Michal Suchanek <msuchanek@suse.de> Reviewed-by: Simon Glass <sjg@chromium.org>
2022-10-29libfdt: Fix invalid version warningMichal Suchanek
python does not like the u-boot- prefix in the version, drop it. /usr/lib/python3.10/site-packages/setuptools/dist.py:544: UserWarning: The version specified ('u-boot-2022.10') is an invalid version, this may not work as expected with newer versions of setuptools, pip, and PyPI. Please see PEP 440 for more details. Signed-off-by: Michal Suchanek <msuchanek@suse.de> Reviewed-by: Simon Glass <sjg@chromium.org>
2022-02-22scripts: dtc: libfdt: fdt_ro.c: always define fdt_check_fullPhilippe Reynes
On some configs (like stm32mp15_dhcom_basic_defconfig), if configs SPL_LOAD_FIT_FULL and SPL_FIT_FULL_CHECK are enabled. Then the compilatio fails with the following error: arm-linux-gnueabi-ld.bfd: boot/image-fit.o: in function `fit_check_format': <PATH>/uboot/u-boot-stm/boot/image-fit.c:1641: undefined reference to `fdt_check_full' scripts/Makefile.spl:509: recipe for target 'spl/u-boot-spl' failed This issue happens because the function fdt_check_full is only defined if "!defined(FDT_ASSUME_MASK) || FDT_ASSUME_MASK != 0xff". But this function may be called even if this condition are not verified. To avoid this issue, the function fdt_check_full is always defined. Signed-off-by: Philippe Reynes <philippe.reynes@softathome.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2022-01-19doc: replace @return by Return:Heinrich Schuchardt
Sphinx expects Return: and not @return to indicate a return value. find . -name '*.c' -exec \ sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \; find . -name '*.h' -exec \ sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \; Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2021-09-30WS cleanup: remove trailing empty linesWolfgang Denk
Signed-off-by: Wolfgang Denk <wd@denx.de>
2021-05-24pylibfdt: Rework "avoid unused variable warning" linesTom Rini
Clang has -Wself-assign enabled by default under -Wall and so when building with -Werror we would get an error here. Inspired by Linux kernel git commit a21151b9d81a ("tools/build: tweak unused value workaround") make use of the fact that both Clang and GCC support casting to `void` as the method to note that something is intentionally unused. Signed-off-by: Tom Rini <trini@konsulko.com>
2021-04-06dtc: Update the build rule for pylibfdtSimon Glass
Some versions of make complain about using a grouped target without a recipe: .../pylibfdt/Makefile:36: *** grouped targets must provide a recipe. Stop. Fix this by adding a dummy recipe. Signed-off-by: Simon Glass <sjg@chromium.org>
2021-03-26libfdt: Tidy up pylibfdt build ruleSimon Glass
At present the build rule for pylibfdt depends on _libfdt.so but modern Python versions add a different suffix to the output file, resulting in something like _libfdt.cpython-38-x86_64-linux-gnu.so The result is that pylibfdt is rebuilt every time. Rename the file the standard name so that the rule works correctly. Also add libfdt.py to the dependencies, so that file is always created if missing. Signed-off-by: Simon Glass <sjg@chromium.org>
2021-02-15libfdt: Check for multiple/invalid root nodesSimon Glass
It is possible to construct a devicetree blob with multiple root nodes. Update fdt_check_full() to check for this, along with a root node with an invalid name. CVE-2021-27097 Signed-off-by: Simon Glass <sjg@chromium.org> Reported-by: Bruce Monroe <bruce.monroe@intel.com> Reported-by: Arie Haenel <arie.haenel@intel.com> Reported-by: Julien Lenoir <julien.lenoir@intel.com>
2020-11-10libfdt: Fix signedness comparison warningsAndre Przywara
This is a combination of upstream libfdt commits to fix warnings about comparing signed and unsigned integers: ========== scripts/dtc/libfdt/fdt.c: In function ‘fdt_offset_ptr’: scripts/dtc/libfdt/fdt.c:137:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if ((absoffset < offset) ... ========== For a detailed description of the fixes, see the dtc repo: https://git.kernel.org/pub/scm/utils/dtc/dtc.git/log/?id=73e0f143b73d808 For this patch the commits between 73e0f143b73d8088 and ca19c3db2bf62000 have been combined and adjusted for the slight differences in U-Boot's libfdt code base. Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2020-09-22libfdt: Detected out-of-space with fdt_finish()Simon Glass
At present the Python sequential-write interface can produce an error when it calls fdt_finish(), since this needs to add a terminating tag to the end of the struct section. Fix this by automatically expanding the buffer if needed. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-07-24binman: Adjust pylibfdt for incremental buildSimon Glass
If the pylibfdt shared-object file is detected, then Python assumes that the libfdt.py file exists also. Sometimes when an incremental build aborts, the shared-object file is built but the libfdt.py is not. The only way out at this point is to use 'make mkproper', or similar. Fix this by removing the .so file before it is built. This seems to make Python rebuild everything. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2020-07-24Revert "Merge tag 'dm-pull-20jul20' of git://git.denx.de/u-boot-dm"Tom Rini
This reverts commit 5d3a21df6694ebd66d5c34c9d62a26edc7456fc7, reversing changes made to 56d37f1c564107e27d873181d838571b7d7860e7. Unfortunately this is causing CI failures: https://travis-ci.org/github/trini/u-boot/jobs/711313649 Signed-off-by: Tom Rini <trini@konsulko.com>
2020-07-20binman: Adjust pylibfdt for incremental buildSimon Glass
If the pylibfdt shared-object file is detected, then Python assumes that the libfdt.py file exists also. Sometimes when an incremental build aborts, the shared-object file is built but the libfdt.py is not. The only way out at this point is to use 'make mkproper', or similar. Fix this by removing the .so file before it is built. This seems to make Python rebuild everything. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2020-06-11libfdt: Remove superfluous NUL character from overlay symbolsMarcus Comstedt
The symbol path already ends with a NUL character (something which is actually checked by the code) and this NUL is included in rel_path_len, so there is no need to add a second one. This change fixes incorrect display in "fdt list /__symbols" after applying an overlay with symbols. Signed-off-by: Marcus Comstedt <marcus@mc.pp.se> Reviewed-by: Simon Glass <sjg@chromium.org>
2020-05-20libfdt: Export overlay_apply_node() as fdt_overlay_apply_node()Marek Vasut
This function is useful to merge a subset of DT into another DT, for example if some prior-stage firmware passes a DT fragment to U-Boot and U-Boot needs to merge it into its own DT. Export this function to permit implementing such functionality. Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com> Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org> Cc: Simon Glass <sjg@chromium.org> Cc: Tom Rini <trini@konsulko.com>
2020-04-10kconfig / kbuild: Re-sync with Linux 4.19Tom Rini
Align Kconfig and Kbuild logic to Linux 4.19 release with minimal impact on files outside of this scope. Our previous Kconfig sync was done by commit 5972ff077e0f ("kconfig / kbuild: re-sync with Linux 4.18"). In this particular re-sync in order to keep clang support working a number of related changes needed to be pulled in that had been missed previously. Not all of these changes we easily traceable and so have been omitted from the list below. The imported Linux commits are: [From prior to v4.18] 9f3f1fd29976 kbuild: Add __cc-option macro d7f14c66c273 kbuild: Enable Large File Support for hostprogs 6d79a7b424a5 kbuild: suppress warnings from 'getconf LFS_*' 24403874316a Shared library support 86a9df597cdd kbuild: fix linker feature test macros when cross compiling with Clang 0294e6f4a000 kbuild: simplify ld-option implementation [From v4.18 to v4.19] 96f14fe738b6 kbuild: Rename HOSTCFLAGS to KBUILD_HOSTCFLAGS 10844aebf448 kbuild: Rename HOSTCXXFLAGS to KBUILD_HOSTCXXFLAGS b90a368000ab kbuild: Rename HOSTLDFLAGS to KBUILD_HOSTLDFLAGS 8377bd2b9ee1 kbuild: Rename HOST_LOADLIBES to KBUILD_HOSTLDLIBS f92d19e0ef9b kbuild: Use HOST*FLAGS options from the command line 4ab3b80159d4 kconfig: check for pkg-config on make {menu,n,g,x}config 693359f7ac90 kconfig: rename SYMBOL_AUTO to SYMBOL_NO_WRITE f60b992e30ff kbuild: replace $(LDFLAGS) $(ldflags-y) with $(ld_flags) 2fb9279f2c3e kbuild: change ld_flags to contain LDFLAGS_$(@F) c931d34ea085 arm64: build with baremetal linker target instead of Linux when available 5accd7f3360e kconfig: handle format string before calling conf_message_callback() a2ff4040151a kconfig: rename file_write_dep and move it to confdata.c 0608182ad542 kconfig: split out useful helpers in confdata.c adc18acf42a1 kconfig: remove unneeded directory generation from local*config 79123b1389cc kconfig: create directories needed for syncconfig by itself 16952b77d8b5 kconfig: make syncconfig update .config regardless of sym_change_count d6c6ab93e17f kbuild: remove deprecated host-progs variable 56869d45e364 kconfig: fix the rule of mainmenu_stmt symbol c151272d1687 kconfig: remove unused sym_get_env_prop() function 1880861226c1 kconfig: remove P_ENV property type e3fd9b5384f3 scripts/dtc: consolidate include path options in Makefile 4bf6a9af0e91 kconfig: add build-only configurator targets f1575595d156 kconfig: error out when seeing recursive dependency 5e8c5299d315 kconfig: report recursive dependency involving 'imply' f498926c47aa kconfig: improve the recursive dependency report 98a4afbfafd2 kconfig: fix "Can't open ..." in parallel build 9a9ddcf47831 kconfig: suppress "configuration written to .config" for syncconfig 87a32e624037 kbuild: pass LDFLAGS to recordmcount.pl d503ac531a52 kbuild: rename LDFLAGS to KBUILD_LDFLAGS 217c3e019675 disable stringop truncation warnings for now bc8d2e20a3eb kconfig: remove a spurious self-assignment fd65465b7016 kconfig: do not require pkg-config on make {menu,n}config 5a4630aadb9a ftrace: Build with CPPFLAGS to get -Qunused-arguments Note that this adds new cleanup work to do in that we should adapt the shared library support we have to what is now upstream. Signed-off-by: Tom Rini <trini@konsulko.com> Reviewed-by: Masahiro Yamada <masahiroy@kernel.org>
2020-03-16scripts/dtc: Update to upstream version v1.4.6-21-g84e414b0b5bcRob Herring
This adds the following commits from upstream: 84e414b0b5bc tests: Add a test case for the omit-if-no-ref keyword 4038fd90056e dtc: add ability to make nodes conditional on them being referenced e1f139ea4900 checks: drop warning for missing PCI bridge bus-range f4eba68d89ee checks: Print duplicate node name instead of parent name 46df1fb1b211 .travis.yml: Run valgrind checks via Travis 14a3002a1aee tests: Update valgrind suppressions for sw_tree1 02c5fe9debc0 tests: Remove valgrind error from tests/get_path df536831d02c checks: add graph binding checks 2347c96edcbe checks: add a check for duplicate unit-addresses of child nodes 8f1b35f88395 Correct overlay syntactic sugar for generating target-path fragments afbddcd418fb Suppress warnings on overlay fragments 119e27300359 Improve tests for dtc overlay generation [From Linux Kernel commit 50aafd60898a8b3edf2f60e014a8288da3b2e5e3] Signed-off-by: Rob Herring <robh@kernel.org> [For applying to U-Boot] Signed-off-by: Tom Rini <trini@konsulko.com>
2020-02-05dtc: add ability to make nodes conditional on them being referencedMaxime Ripard
This is needed when importing mainline DTs into U-Boot, as some started using this /omit-if-no-ref/ tag, so won't compile with U-Boot's current dtc copy. This is just a cherry-pick of the patch introducing this feature. Original commit message from Maxime: ------------------ A number of platforms have a need to reduce the number of DT nodes, mostly because of two similar constraints: the size of the DT blob, and the time it takes to parse it. As the DT is used in more and more SoCs, and by more projects, some constraints start to appear in bootloaders running from SRAM with an order of magnitude of 10kB. A typical DT is in the same order of magnitude, so any effort to reduce the blob size is welcome in such an environment. Some platforms also want to reach very fast boot time, and the time it takes to parse a typical DT starts to be noticeable. Both of these issues can be mitigated by reducing the number of nodes in the DT. The biggest provider of nodes is usually the pin controller and its subnodes, usually one for each valid pin configuration in a given SoC. Obviously, a single, fixed, set of these nodes will be used by a given board, so we can introduce a node property that will tell the DT compiler to drop the nodes when they are not referenced in the tree, and as such wouldn't be useful in the targetted system. Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Andre Przywara <andre.przywara@arm.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2020-01-30Remove redundant YYLOC global declarationPeter Robinson
Same as the upstream fix for building dtc with gcc 10. Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
2020-01-30libfdt: Revert 6dcb8ba4 from upstream libfdtTom Rini
In upstream libfdt, 6dcb8ba4 "libfdt: Add helpers for accessing unaligned words" introduced changes to support unaligned reads for ARM platforms and 11738cf01f15 "libfdt: Don't use memcpy to handle unaligned reads on ARM" improved the performance of these helpers. In practice however, this only occurs when the user has forced the device tree to be placed in memory in a non-aligned way, which in turn violates both our rules and the Linux Kernel rules for how things must reside in memory to function. This "in practice" part is important as handling these other cases adds visible (1 second or more) delay to boot in what would be considered the fast path of the code. Cc: Patrice CHOTARD <patrice.chotard@st.com> Cc: Patrick DELAUNAY <patrick.delaunay@st.com> Link: https://www.spinics.net/lists/devicetree-compiler/msg02972.html Signed-off-by: Tom Rini <trini@konsulko.com> Tested-by: Patrice Chotard <patrice.chotard@st.com>
2019-11-23scripts: dtc: ignore files generated generated by pythonBartosz Golaszewski
Add __pycache__ to ignored files and extend the rule for _libfdt to also include generated shared objects (e.g. _libfdt.cpython-37m-x86_64-linux-gnu.so). Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2019-11-04pylibfdt: Correct the type for fdt_property_stub()Simon Glass
This function should use a void * type, not char *. This causes an error: TypeError: in method 'fdt_property_stub', argument 3 of type 'char const *' Fix it. Signed-off-by: Simon Glass <sjg@chromium.org>
2019-11-04pylibfdt: Sync up with upstreamSimon Glass
Sync up the libfdt Python bindings with upstream, commit: 430419c (tests: fix some python warnings) Signed-off-by: Simon Glass <sjg@chromium.org>
2019-11-04pylibfdt: Convert to Python 3Simon Glass
Build this swig module with Python 3. Signed-off-by: Simon Glass <sjg@chromium.org>
2019-11-04fdt: Sync up to the latest libfdtSimon Glass
Bring over the fdt from this commit: 430419c (origin/master) tests: fix some python warnings adding in the 'assumptions' series designed to reduce code size. Signed-off-by: Simon Glass <sjg@chromium.org>
2019-10-15libfdt: fix typo on commentGiulio Benetti
Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
2019-10-15libfdt: Allow #size-cells of 0Matthias Brugger
The commit "libfdt: fdt_address_cells() and fdt_size_cells()" introduced a bug as it consolidated code between the helpers for getting be 0, and is frequently found so in practice for /cpus. IEEE1275 only requires implementations to handle 1..4 for #address-cells, although one could make a case for #address-cells == #size-cells == 0 being used to represent a bridge with a single port. While we're there, it's not totally obvious that the existing implicit cast of a u32 to int will give the correct results according to strict C, although it does work in practice. Straighten that up to cast only after we've made our range checks. This is based on upstream commit: b8d6eca ("libfdt: Allow #size-cells of 0") but misses the test cases,as we don't implement them in U-Boot. Signed-off-by: Matthias Brugger <mbrugger@suse.com>
2019-10-15libfdt: return correct value if #size-cells property is not presentMatthias Brugger
According to the device tree specification, the default value for was not present. This patch also makes fdt_address_cells() and fdt_size_cells() conform to the behaviour documented in libfdt.h. The defaults are only returned if fdt_getprop() returns -FDT_ERR_NOTFOUND, otherwise the actual error is returned. This is based on upstream commit: aa7254d ("libfdt: return correct value if #size-cells property is not present") but misses the test case part, as we don't implement them in U-Boot. Signed-off-by: Matthias Brugger <mbrugger@suse.com>
2019-10-15libfdt: fdt_address_cells() and fdt_size_cells()Matthias Brugger
Add internal fdt_cells() to avoid copy and paste. Fix typo in fdt_size_cells() documentation comment. This is based in upstream commit: c12b2b0 ("libfdt: fdt_address_cells() and fdt_size_cells()") but misses the test cases, as we don't implement them in U-Boot. Signed-off-by: Matthias Brugger <mbrugger@suse.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2019-07-29libfdt: Copy the struct region in fdt_resize()Simon Glass
At present this function appears to copy only the data before the struct region and the data in the string region. It does not seem to copy the struct region itself. >From the arguments of this function it seems that it should support fdt and buf being different. This patch attempts to fix this problem. Upstream commit: c72fa77 libfdt: Copy the struct region in fdt_resize() Signed-off-by: Simon Glass <sjg@chromium.org>
2019-04-11libfdt: Add phandle generation helperThierry Reding
The new fdt_generate_phandle() function can be used to generate a new, unused phandle given a specific device tree blob. The implementation is somewhat naive in that it simply walks the entire device tree to find the highest phandle value and then returns a phandle value one higher than that. A more clever implementation might try to find holes in the current set of phandle values and fill them. But this implementation is relatively simple and works reliably. Also add a test that validates that phandles generated by this new API are indeed unique. Signed-off-by: Thierry Reding <treding@nvidia.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2019-01-15pylibfdt: Use Python 2 in MakefileJosef Lusticky
pylibfdt needs Python 2 to build. Replace $(PYTHON) with $(PYTHON2) in pylibfdt Makefile to ensure Python 2 is used to build it. This fixes build on systems where Python 3 is the default version of the "python" interpreter. Reviewed-by: Simon Glass <sjg@chromium.org>
2018-09-28fdt: Add Python support for adding/removing nodesSimon Glass
Pull this support from these upstream commits: bfbfab0 pylibfdt: Add a means to add and delete notes 9005f41 pylibfdt: Allow delprop() to return errors Signed-off-by: Simon Glass <sjg@chromium.org>
2018-08-08libfdt: Update to latest pylibfdt implementationSimon Glass
The enhanced pylibfdt support in U-Boot needed for binman was a placeholder while upstreaming of this work continued. This is now complete, so bring in the changes and update the tools as needed. There are quite a few changes since we decided to split the implementation into three fdt classes instead of two. The Fdt.del_node() method was unfortunately missed in this process and will be dealt with later. It exists in U-Boot but not upstream. Further syncing of libfdt probably needs to wait until we assess the code-size impact of all the new checking code on SPL and possibly provide a way to disable it. Signed-off-by: Simon Glass <sjg@chromium.org>
2018-07-09libfdt: Add get_property() and del_node()Simon Glass
Add support for these functions in the Python binding. This patch stands in for a pending upstream change. Signed-off-by: Simon Glass <sjg@chromium.org>
2018-07-09libfdt: Fix the Python pack() functionSimon Glass
This currently fails to reduce the device-tree bytearray size. Fix this. This stands in for a pending upstream change. Signed-off-by: Simon Glass <sjg@chromium.org>
2018-07-09libfdt: Bring in proposed pylibfdt changesSimon Glass
This provides various patches sent to the devicetree-compiler mailing list to enhance the Python bindings. A final version of this patch may be created once upstreaming is complete, but if it takes too long, this can act as a placeholder. New pylibfdt features: - Support for most remaining, relevant libfdt functions - Support for sequential-write functions Changes are applied to existing U-Boot tools as needed. Signed-off-by: Simon Glass <sjg@chromium.org>
2018-05-31scripts/dtc: Re-sync with Linux 4.17-rc4Eugeniu Rosca
To achieve a DTC state (more or less) equivalent to Linux 4.17-rc4, backport the DTC-specific part from below Linux commits: b23d1a241f4eb4 ("kbuild: add %.lex.c and %.tab.[ch] to 'targets' automatically") 9a8dfb394c0467 ("kbuild: clean up *.lex.c and *.tab.[ch] patterns from top-level Makefile") 59889300274569 (".gitignore: move *.lex.c *.tab.[ch] patterns to the top-level .gitignore") e039139be8c251 ("scripts/dtc: generate lexer and parser during build instead of shipping") b24413180f5600 ("License cleanup: add SPDX GPL-2.0 license identifier to files with no license") With this commit, the diff between Linux and U-boot common DTC files is: $ git diff --stat --diff-filter=M v4.17-rc4 <this-commit> -- scripts/dtc scripts/dtc/.gitignore | 2 +- scripts/dtc/Makefile | 3 +++ The delta is coming from U-boot commits: * v2017.11 de163ecedb8a ("scripts: dtc: Add .gitignore") * v2018.01 15b97f5c5e6d ("pylibfdt: move pylibfdt to scripts/dtc/pylibfdt and refactor makefile") Signed-off-by: Eugeniu Rosca <erosca@de.adit-jv.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Masahiro Yamada <yamada.masahiro@socionext.com>
generated by cgit v1.2.3 (git 2.0.4) at 2025-07-14 05:54:24 +0000