06 Nov, 2017
1 commit
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U-Boot bundles a patched copy of libfdt, so it's wrong to attempt to
include it . This breaks the build for me when I have dtc
fully installed in my host -- as happened earlier tonight with
Buildroot, for example.There are several other occurrences throughout the code where ' include style is being used -- IMHO wrongly.
Signed-off-by: Jan Kundrát
03 Jun, 2017
2 commits
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These header files are actually part of libfdt. Move them there to make
it easier to build pylibfdt and easier to merge changes from upstream.Update the license header to use SPDX at the same time.
Signed-off-by: Simon Glass
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These should follow the UBoot standard. Update them.
Signed-off-by: Simon Glass
24 Oct, 2016
1 commit
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Now that the overlay code has been merge upstream, update our copy to
what's been merged, since a significant number of issues have been fixed
during the merge process.Signed-off-by: Maxime Ripard
Acked-by: Simon Glass
14 Oct, 2016
4 commits
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The fdt_path_offset() function is not inlined in upstream libfdt. Adjust
U-Boot's version to match.Signed-off-by: Simon Glass
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The signature for this macro has changed. Bring in the upstream version and
adjust U-Boot's usages to suit.Signed-off-by: Simon Glass
Update to drivers/power/pmic/palmas.c:
Signed-off-by: KeerthyChange-Id: I6cc9021339bfe686f9df21d61a1095ca2b3776e8
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These have now landed upstream. The naming is different and in one case the
function signature has changed. Update the code to match.This applies the following upstream commits by
Thierry Reding :604e61e fdt: Add functions to retrieve strings
8702bd1 fdt: Add a function to get the index of a string
2218387 fdt: Add a function to count stringsSigned-off-by: Simon Glass
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This includes small changes to the following functions, from upstream
commit 6d1832c:- fdt_get_max_phandle() (upstream commit 84e0e134)
- fdt_node_check_compatible (upstream commit 53bf130b)
- fdt_setprop_inplace_namelen_partial() to remove useless brackets and
use idx instead of index
- _fdt_resize_property() to use idx instead of index
- _fdt_splice() (upstream commit d4c7c25c)It also includes various typo fixes in libfdt.h
Signed-off-by: Simon Glass
20 Aug, 2016
6 commits
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The device tree overlays are a good way to deal with user-modifyable
boards or boards with some kind of an expansion mechanism where we can
easily plug new board in (like the BBB, the Raspberry Pi or the CHIP).Add a new function to merge overlays with a base device tree.
Signed-off-by: Maxime Ripard
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Add a function to modify inplace only a portion of a property..
This is especially useful when the property is an array of values, and you
want to update one of them without changing the DT size.Signed-off-by: Maxime Ripard
Acked-by: Simon Glass -
Add a function to retrieve a writeable property only by the first
characters of its name.Signed-off-by: Maxime Ripard
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Add a namelen variant of fdt_path_offset to retrieve the node offset using
only a fixed number of characters.Reviewed-by: Simon Glass
Signed-off-by: Maxime Ripard -
Add a function to retrieve the highest phandle in a given device tree.
Signed-off-by: Maxime Ripard
Reviewed-by: Stefan Agner
Acked-by: Simon Glass -
Implement a macro based on fdt_first_property_offset and
fdt_next_property_offset that provides a convenience to iterate over all
the properties of a given node.Signed-off-by: Maxime Ripard
Acked-by: Simon Glass
15 Mar, 2016
1 commit
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The existing function to add a new property to a tree being built requires
that the entire contents of the new property be passed in. For some
applications it is more convenient to be able to add the property contents
later, perhaps by reading from a file. This avoids double-buffering of the
contents.Add a new function to support this and adust the existing fdt_property() to
use it.Signed-off-by: Simon Glass
22 Jul, 2015
2 commits
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These have been sent upstream but not accepted to libfdt. For now, bring
these into U-Boot to enable fdtgrep to operate. We will use fdtgrep to
cut device tree files down for SPL.Signed-off-by: Simon Glass
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Property names are stored in a string table. When a node property is
removed, the string table is not updated since other nodes may have a
property with the same name.Thus it is possible for the string table to build up a number of unused
strings. Add a function to remove these. This works by building a new device
tree from the old one, adding strings one by one as needed.Signed-off-by: Simon Glass
20 Jul, 2015
1 commit
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Looks like this comment was copied from that of
fdt_get_string_index().Signed-off-by: Masahiro Yamada
Fixes: 5094eb408a5d ("fdt: Add functions to retrieve strings")
Acked-by: Simon Glass
23 Oct, 2014
4 commits
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The fdt_for_each_subnode() iterator macro provided by this patch can be
used to iterate over a device tree node's subnodes. At each iteration a
loop variable will be set to the next subnode.Acked-by: Simon Glass
Signed-off-by: Thierry Reding -
Given a device tree node, a property name and an index, the new function
fdt_get_string_index() will return in an output argument a pointer to
the index'th string in the property's value.The fdt_get_string() is a shortcut for the above with the index being 0.
Signed-off-by: Thierry Reding
Acked-by: Simon Glass -
Given a device tree node and a property name, the new fdt_find_string()
function will look up a given string in the string list contained in the
property's value and return its index.Signed-off-by: Thierry Reding
Acked-by: Simon Glass -
Given a device tree node and a property name, the fdt_count_strings()
function counts the number of strings found in the property value.Signed-off-by: Thierry Reding
Acked-by: Simon Glass
09 Aug, 2014
1 commit
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This brings in changes up to commit f9e91a48 in the libfdt repo.
Mostly this is whitespace/minor changes. But there are a few new
features:- fdt_size_cells() and fdt_address_cells()
- fdt_resize()Signed-off-by: Simon Glass
20 Sep, 2013
1 commit
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Typoes fixed:
"partion" -> "partition"
"retrive", "retreive" -> "retrieve"
"th" -> "to"Signed-off-by: Robert P. J. Day
26 Jun, 2013
1 commit
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Add a function to find regions in device tree given a list of nodes to
include and properties to exclude.See the header file for full documentation.
Signed-off-by: Simon Glass
15 May, 2013
1 commit
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Iterating through subnodes with libfdt is a little painful to write as we
need something like this:for (depth = 0, count = 0,
offset = fdt_next_node(fdt, parent_offset, &depth);
(offset >= 0) && (depth > 0);
offset = fdt_next_node(fdt, offset, &depth)) {
if (depth == 1) {
/* code body */
}
}Using fdt_next_subnode() we can instead write this, which is shorter and
easier to get right:for (offset = fdt_first_subnode(fdt, parent_offset);
offset >= 0;
offset = fdt_next_subnode(fdt, offset)) {
/* code body */
}Also, it doesn't require two levels of indentation for the loop body.
Signed-off-by: Simon Glass
(Cherry-picked from dtc commit 4e76ec79)
Acked-by: Gerald Van Baren
11 May, 2013
2 commits
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Ref: DTC commit cc11e522
Signed-off-by: François Revol
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This function is useful outside libfdt, so export it.
Ref: DTC commit b7aa300e
Signed-off-by: Simon Glass
Acked-by: David Gibson
08 Feb, 2013
1 commit
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commit 142419e "dtc/libfdt: sparse fixes", for u-boot's libfdt copy.
Signed-off-by: Kim Phillips
Cc: Jerry Van Baren
16 Oct, 2012
3 commits
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The libfdt read/write functions are now usable enough that it's become a
moderately common pattern to use them to build and manipulate a device
tree from scratch. For example, we do so ourself in our rw_tree1 testcase,
and qemu is starting to use this model when building device trees for some
targets such as e500.However, the read/write functions require some sort of valid tree to begin
with, so this necessitates either having a trivial canned dtb to begin with
or, more commonly, creating an empty tree using the serial-write functions
first.This patch adds a helper function which uses the serial-write functions to
create a trivial, empty but complete and valid tree in a supplied buffer,
ready for manipulation with the read/write functions.Signed-off-by: David Gibson
From git://git.jdl.com/software/dtc.git patch hash be6026838 with
adaptations to include/libfdt.h and lib/libfdt/Makefile for the U-Boot
environment.Signed-off-by: Gerald Van Baren
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In device trees in the world, properties consisting of a single 64-bit
integer are not as common as those consisting of a single 32-bit, cell
sized integer, but they're common enough that they're worth including
convenience functions for.This patch adds helper wrappers of fdt_setprop_inplace(), fdt_setprop() and
fdt_appendprop() for handling 64-bit integer quantities in properties. For
better consistency with the names of these new *_u64() functions we also
add *_u32() functions as alternative names for the existing *_cell()
functions handling 32-bit integers.Signed-off-by: David Gibson
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Some properties may contain multiple values, these values may need
to be added to the property respectively. this patch provides this
functionality. The main purpose of fdt_append_prop() is to append
the values to a existing property, or create a new property if it
dose not exist.Signed-off-by: Minghuan Lian
Signed-off-by: David Gibson
15 Jul, 2011
1 commit
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For ages, we've been talking about adding functions to libfdt to allow
iteration through properties. So, finally, here are some.I got bogged down on this for a long time because I didn't want to
expose offsets directly to properties to the callers. But without
that, attempting to make reasonable iteration functions just became
horrible. So eventually, I settled on an interface which does now
expose property offsets. fdt_first_property_offset() and
fdt_next_property_offset() are used to step through the offsets of the
properties starting from a particularly node offset. The details of
the property at each offset can then be retrieved with either
fdt_get_property_by_offset() or fdt_getprop_by_offset() which have
interfaces similar to fdt_get_property() and fdt_getprop()
respectively.No explicit testcases are included, but we do use the new functions to
reimplement the existing fdt_get_property() function.Signed-off-by: David Gibson
This was extracted from the DTC commit:
73dca9ae0b9abe6924ba640164ecce9f8df69c5a Mon Sep 17 00:00:00 2001Signed-off-by: Gerald Van Baren
02 Apr, 2009
1 commit
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Allow the inclusion of libfdt.h in C++ source.
Signed-off-by: Laurent Gregoire
Acked-by: David Gibson
04 Oct, 2008
1 commit
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Oops, screwed up the function name in the documenting comment for this
function. Trivial correction in this patch.Signed-off-by: David Gibson
Acked-by: Gerald Van Baren
03 Oct, 2008
1 commit
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Kumar has already added alias expansion to fdt_path_offset().
However, in some circumstances it may be convenient for the user of
libfdt to explicitly get the string expansion of an alias. This patch
adds a function to do this, fdt_get_alias(), and uses it to implement
fdt_path_offset().Signed-off-by: David Gibson
02 Oct, 2008
1 commit
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Using Gcc 4.3 detected this problem:
../dtc/libfdt/fdt.c: In function 'fdt_next_tag':
../dtc/libfdt/fdt.c:82: error: assuming signed overflow does not
occur when assuming that (X + c) < X is always falseTo fix the problem, treat the offset as an unsigned int.
The problem report and proposed fix were provided
by Steve Papacharalambous .Signed-off-by: Jon Loeliger
25 Aug, 2008
3 commits
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As well as fdt_subnode_offset(), libfdt includes an
fdt_subnode_offset_namelen() function that takes the subnode name to
look up not as a NUL-terminated string, but as a string with an
explicit length. This can be useful when the caller has the name as
part of a longer string, such as a full path.However, we don't have corresponding 'namelen' versions for
fdt_get_property() and fdt_getprop(). There are less obvious use
cases for these variants on property names, but there are
circumstances where they can be useful e.g. looking up property names
which need to be parsed from a longer string buffer such as user input
or a configuration file, or looking up an alias in a path with
IEEE1275 style aliases.So, since it's very easy to implement such variants, this patch does
so. The original NUL-terminated variants are, of course, implemented
in terms of the namelen versions.Signed-off-by: David Gibson
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Fix a few typos and mistakes.
Signed-off-by: Wolfram Sang
Acked-by: David Gibson -
Enabling -Wcast-qual warnings in dtc shows up a number of places where
we are incorrectly discarding a const qualification. There are also
some places where we are intentionally discarding the 'const', and we
need an ugly cast through uintptr_t to suppress the warning. However,
most of these are pretty well isolated with the *_w() functions. So
in the interests of maximum safety with const qualifications, this
patch enables the warnings and fixes the existing complaints.Signed-off-by: David Gibson
Acked-by: Gerald Van Baren
