summaryrefslogtreecommitdiff
path: root/src/lib/device_tree.c
AgeCommit message (Collapse)Author
2022-12-22lib/device_tree.c: Change log level messageElyes Haouas
Move a "NOTE" message from BIOS_DEBUG to BIOS_NOTICE log level. Change-Id: If92c1ccb5b10a4b29a5006a41ebd0855294f354e Signed-off-by: Elyes Haouas <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/69498 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
2022-03-22lib/device_tree.c: zero-initialize new DT nodesSergii Dmytruk
Prevents bad things from happening later when these new nodes are used. This issue is hard to observe because: 1. Heap is zero-initialized, so you need to use allocated memory filling it with non-zero values, free, allocate it again, use uninitialized. 2. Most of allocated memory is not freed. 3. Implementation of free() does something only for one last malloc'ed block, making most of freed memory unavailable for future allocation. Change-Id: I38a7ec1949d80f7a2564fac380ce94de6056a0c7 Signed-off-by: Sergii Dmytruk <sergii.dmytruk@3mdeb.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/62928 Reviewed-by: Krystian Hebel <krystian.hebel@3mdeb.com> Reviewed-by: Julius Werner <jwerner@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2022-02-11lib/device_tree.c: Change 'printk(BIOS_DEBUG, "ERROR:' to printk(BIOS_ERR, "'Elyes HAOUAS
Change-Id: Ie20a2c35afc2b849396ddb023b99aab33836b8de Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/61723 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Paul Menzel <paulepanter@mailbox.org> Reviewed-by: Julius Werner <jwerner@chromium.org>
2021-10-05src/acpi to src/lib: Fix spelling errorsMartin Roth
These issues were found and fixed by codespell, a useful tool for finding spelling errors. Signed-off-by: Martin Roth <martin@coreboot.org> Change-Id: I5b8ecdfe75d99028fee820a2034466a8ad1c5e63 Reviewed-on: https://review.coreboot.org/c/coreboot/+/58080 Reviewed-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2021-01-18lib/device_tree.c: Remove repeated wordElyes HAOUAS
Change-Id: Id5279587231c539bd3ffc75b75b29d88ef30e56a Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/49534 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Jacob Garber <jgarber1@ualberta.ca>
2020-05-06treewide: replace GPLv2 long form headers with SPDX headerPatrick Georgi
This replaces GPLv2-or-later and GPLv2-only long form text with the short SPDX identifiers. Commands used: perl -i -p0e 's|/\*[*\n\t ]*This program is free software[:;].*you.*can.*redistribute.*it.*and/or.*modify.*it.*under.*the.*terms.*of.*the.*GNU.*General.*Public.*License.*as.*published.*by.*the.*Free.*Software.*Foundation[;,].*version.*2.*of.*the.*License.*or.*(at.*your.*option).*any.*later.*version.+This.*program.*is.*distributed.*in.*the.*hope.*that.*it.*will.*be.*useful,.*but.*;.*without.*even.*the.*implied.*warranty.*of.*MERCHANTABILITY.*or.*FITNESS.*FOR.*A.*PARTICULAR.*PURPOSE..*.*See.*the.*GNU.*General.*Public.*License for more details.[\n\t ]*\*/|/* SPDX-License-Identifier: GPL-2.0-or-later */|s' $(cat filelist) perl -i -p0e 's|/\*[*\n\t ]*This program is free software[:;].*you.*can.*redistribute.*it.*and/or.*modify.*it.*under.*the.*terms.*of.*the.*GNU.*General.*Public.*License.*as.*published.*by.*the.*Free.*Software.*Foundation[;,].*version.*2.+This.*program.*is.*distributed.*in.*the.*hope.*that.*it.*will.*be.*useful,.*but.*;.*without.*even.*the.*implied.*warranty.*of.*MERCHANTABILITY.*or.*FITNESS.*FOR.*A.*PARTICULAR.*PURPOSE..*.*See.*the.*GNU.*General.*Public.*License for more details.[\n\t ]*\*/|/* SPDX-License-Identifier: GPL-2.0-only */|s' $(cat filelist) perl -i -p0e 's|/\*[*\n\t ]*This program is free software[:;].*you.*can.*redistribute.*it.*and/or.*modify.*it.*under.*the.*terms.*of.*the.*GNU.*General.*Public.*License.*version.*2.*as.*published.*by.*the.*Free.*Software.*Foundation[.;,].+This.*program.*is.*distributed.*in.*the.*hope.*that.*it.*will.*be.*useful,.*but.*;.*without.*even.*the.*implied.*warranty.*of.*MERCHANTABILITY.*or.*FITNESS.*FOR.*A.*PARTICULAR.*PURPOSE..*.*See.*the.*GNU.*General.*Public.*License for more details.[\n\t ]*\*/|/* SPDX-License-Identifier: GPL-2.0-only */|s' $(cat filelist) perl -i -p0e 's|/\*[*\n\t ]*This software is licensed under.*the.*terms.*of.*the.*GNU.*General.*Public.*License.*version.*2.*as.*published.*by.*the.*Free.*Software.*Foundation,.+This.*program.*is.*distributed.*in.*the.*hope.*that.*it.*will.*be.*useful,.*but.*;.*without.*even.*the.*implied.*warranty.*of.*MERCHANTABILITY.*or.*FITNESS.*FOR.*A.*PARTICULAR.*PURPOSE..*.*See.*the.*GNU.*General.*Public.*License for more details.[\n\t ]*\*/|/* SPDX-License-Identifier: GPL-2.0-only */|s' $(cat filelist) Change-Id: I7a746088a35633c11fc7ebe86006e96458a1abf8 Signed-off-by: Patrick Georgi <pgeorgi@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/41066 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: David Hendricks <david.hendricks@gmail.com> Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
2020-05-06treewide: move copyrights and authors to AUTHORSPatrick Georgi
Also split "this is part of" line from copyright notices. Change-Id: Ibc2446410bcb3104ead458b40a9ce7819c61a8eb Signed-off-by: Patrick Georgi <pgeorgi@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/41067 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: David Hendricks <david.hendricks@gmail.com> Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
2019-06-24add ctype.h headerJoel Kitching
Sometimes coreboot needs to compile external code (e.g. vboot_reference) using its own set of system header files. When these headers don't line up with C Standard Library, it causes problems. Create ctype.h header file. Relocate ctype.h functions from string.h into ctype.h. Update source files which call ctype.h functions accordingly. Note that ctype.h still lacks five functions which are not used in coreboot source: isalnum, isalpha, iscntrl, isgraph, ispunct BUG=b:124141368 TEST=make clean && make test-abuild BRANCH=none Change-Id: I31b5e8af49956ec024a392a73c3c9024b9a9c194 Signed-off-by: Joel Kitching <kitching@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/33525 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Julius Werner <jwerner@chromium.org>
2019-06-21device_tree: Update comment style to C89Julius Werner
This code was copied from depthcharge which uses C99 comment style, but coreboot uses C89 comment style. Update to match coreboot. Change-Id: Ib67bb9ff17b7688826071453ab58894a0835ce10 Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/32875 Reviewed-by: Patrick Rudolph <siro@das-labor.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-06-21device_tree: Add overlay supportJulius Werner
This patch adds support for merging a device tree overlay (as defined in Documentation/dt-object-internal.txt in the dtc repository) into a base device tree. It was adapted from depthcharge's http://crosreview.com/1536387. Change-Id: Ibec833cd471201bcc7a79eebf360d5f12adb8ff9 Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/32869 Reviewed-by: Hung-Te Lin <hungte@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-06-21lib: Prevent memory leak on error pathJacob Garber
Free the tree before returning to prevent a leak. Change-Id: I1132c0e7404eec1af3adc19a83257f28563f8a58 Signed-off-by: Jacob Garber <jgarber1@ualberta.ca> Found-by: Coverity CID 1401799 Reviewed-on: https://review.coreboot.org/c/coreboot/+/33298 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Julius Werner <jwerner@chromium.org>
2019-06-04device_tree: Make FDT property data non-constJulius Werner
FDT property data should not be const -- sometimes we need to update it, for example when fixing up phandles in an overlay. On the other hand it's occasionally desirable to put a string constant in there without having to strdup() it all the time... let's just live with the tiny implicit assumption that the data we'd want to modify (phandle references, mostly) will never be added from string constants, and put a cast in dt_add_string_prop(). Change-Id: Ifac103fcff0520cc427ab9a2aa141c65e12507ac Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/32868 Reviewed-by: Hung-Te Lin <hungte@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-06-04device_tree: Match debug output format to dtc -O dts outputJulius Werner
This patch updates the device tree dumping functions (not compiled by default but available for debugging) to output properties and nodes in a format similar to .dts files that is very close to what dtc outputs when you decompile a .dtb with it. This makes it easier to match device tree dumps from coreboot with device tree dumps generated by other device tree tooling. This patch was adapted from depthcharge's http://crosreview.com/1536386 Change-Id: Ib40e50d906aff05473a70c4fc9b124d63232558c Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/32867 Reviewed-by: Hung-Te Lin <hungte@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-06-04device_tree: Add support for aliasesJulius Werner
This patch adds support to lookup nodes via the "/aliases" mechanism in device trees. This may be required for overlay support (don't quite remember tbh) and is also just a generally useful feature. It was adapted from depthcharge's http://crosreview.com/1249703 and http://crosreview.com/1542702. Change-Id: I1289ab2f02c4877a2d0111040384827e2b48a34a Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/32866 Reviewed-by: Hung-Te Lin <hungte@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-06-04device_tree: Have absolute paths start with '/'Julius Werner
Currently DT paths are *not* expected to start with '/'. This is not what the spec says (see Devicetree Specification v0.2, 2.2.3 Path Names) and also not what is done by Linux. Change dt_find_node_by_path() to expect paths to start with '/' and add a leading '/' to all DT path strings. Besides the compatibility with the spec this change is also needed to support aliases in the future. This patch was adapted from depthcharge's http://crosreview.com/1252770 Change-Id: Ibdf59ccbb4ead38c6193b630642fd1f1e847dd89 Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/32865 Reviewed-by: Hung-Te Lin <hungte@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-06-04device_tree: Drop sub-node path lookup from dt_find_node_by_path()Julius Werner
Besides looking up a node with an absolute path dt_find_node_by_path() currently also supports finding a sub-node of a non-root node. All callers of the function pass the root node though, so it seems there is no real need for this functionality. Also it is planned to support DT path names with aliases, which would become messy in combination with the lookup from a sub-node. Change the interface of dt_find_node_by_path() to receive the DT tree object instead of a parent node and adapt all callers accordingly. This patch was adapted from depthcharge's http://crosreview.com/1252769 Change-Id: Iff56be4da2461ae73a7301dcaa315758d2a8c999 Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/32864 Reviewed-by: Hung-Te Lin <hungte@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-06-04device_tree: Add phandle caching and lookupsJulius Werner
This patch caches phandles when unflattening the device tree, so we don't have to look up the phandle property again every time we're trying to find the phandle of a node. This is especially important when supporting phandle lookups, which are also added. In addition we keep track of the highest phandle in the whole tree, which will be important for applying overlays later. With this, dt_get_phandle(node) becomes obsolete because the phandle is already available as a member variable in the node. This patch was adapted from depthcharge's http://crosreview.com/1536385 Change-Id: I9cbd67d1d13e57c25d068b3db18bb75c709d7ebe Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/32863 Reviewed-by: Hung-Te Lin <hungte@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-06-04device_tree: Add version checksJulius Werner
This patch adds a few more sanity checks to the FDT header parsing to make sure that our code can support the version that is passed in. This patch was adapted from depthcharge's http://crosreview.com/1536384 Change-Id: I06c112f540213c8db7c2455c2e8a4e8e4f337b78 Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/32862 Reviewed-by: Hung-Te Lin <hungte@chromium.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-06-04device_tree: Switch allocations to xzalloc()Julius Werner
The FIT code is already using xzalloc() everywhere, and that's the only real consumer of device tree code right now. Chances are if you're trying to unflatten an FDT and it doesn't fit into the heap you're pretty much screwed anyway, so all the OOM handling feels a bit unnecessary (and some functions will just silently fail because they don't have a return value, which is bad). Let's just switch this all to die on failed allocations. Change-Id: I738f24d550a776653b2becd3d4f7d4d2cb3cc048 Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/32861 Reviewed-by: Hung-Te Lin <hungte@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-05-23device_tree: Use be32dec/be32enc where appropriateJulius Werner
This patch rewrites some of the device tree code to use the new be32dec/be32enc helpers where they can make the code cleaner. Change-Id: I437bbd6645a556ae9a0cfe6ea14638098e4c3606 Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/32860 Reviewed-by: Hung-Te Lin <hungte@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-08-24device_tree/fit: Constify data structuresPatrick Rudolph
* Add const quailifier to arguments and elements. * Add casts where necessary in cn81xx/soc. Tested on Cavium CN81xx EVB SFF. Change-Id: Id27966427fb97457fe883be32685d1397fb0781f Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com> Reviewed-on: https://review.coreboot.org/28267 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2018-08-10lib/fit: support booting initrd placed above 4GiBPatrick Rudolph
Store initrd offset as 64bit integer. Tested on Cavium CN81XX EVB: The initrd could be loaded when placed above 4GiB. Previously it failed to find the initrd. Change-Id: I5d1ae860ae4a4465546bc0ef89937d611d1e56ab Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com> Reviewed-on: https://review.coreboot.org/28002 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
2018-08-09src/lib: Fix typoElyes HAOUAS
Change-Id: Ie5bf036a63a254dd95b45a0823086c8079eeafe2 Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/27913 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin Roth <martinroth@google.com>
2018-07-12Coverity: Fix CID1393979Patrick Rudolph
Fix resource leak in dt_set_bin_prop_by_path(). Change-Id: I1c4d7e01b25847a2091ad90d2d70711beae55905 Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com> Reviewed-on: https://review.coreboot.org/27445 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
2018-07-02src: Get rid of unneeded whitespaceElyes HAOUAS
Change-Id: I3873cc8ff82cb043e4867a6fe8c1f253ab18714a Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/27295 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2018-06-28devicetree: Add method to delete property by namePatrick Rudolph
Will be used on Cavium SoC to delete devicetree entries that aren't available with the board/configuration. Change-Id: I7c58a2411206bca62d0e96fa627530e937383ac9 Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com> Reviewed-on: https://review.coreboot.org/26693 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Julius Werner <jwerner@chromium.org>
2018-06-14lib/device_tree: Add method to get phandlePatrick Rudolph
Add a method to retrieve a node's phandle. Useful for board specific devicetree manipulations. Change-Id: I966151ad7e82fc678ab4f56cf9b5868ef39398e0 Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com> Reviewed-on: https://review.coreboot.org/26191 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Julius Werner <jwerner@chromium.org>
2018-04-30lib/devicetree: Integrate flattened devicetree supportPatrick Rudolph
* Adapt to coreboot coding style. * Use coreboot's endian conversion functions. * Fix header and header guards. * Get rid of unused functions. * Add Kconfig to build it on ramstage. * Replace size32 with ALIGN_UP and DIV_ROUND_UP. * Add NULL pointer checks * Convert constants to defines Required for Cavium's BDK and uImage FIT support. Change-Id: I6e6cd9f78fb402bd54d684097326d26eb78d552a Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com> Reviewed-on: https://review.coreboot.org/25523 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Julius Werner <jwerner@chromium.org>
2018-04-30lib: Raw import FDT devicetree from depthchargePatrick Rudolph
Import from https://chromium.googlesource.com/chromiumos/platform/depthcharge Required for general devicetree patching and FIT support. Coding style and coreboot integration will be done in a separate commit. Change-Id: Ida75d4786eae38d84bfc71bf53573dafca8eda40 Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com> Reviewed-on: https://review.coreboot.org/25632 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Julius Werner <jwerner@chromium.org>
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-11 17:55:08 +0000