At present dtoc writes only a single file on each invocation. U-Boot
writes the two files it needs by separate invocations of dtoc. Since dtoc
now scans all U-Boot driver source, this is fairly slow (about 1 second
per file).
It would be better if dtoc could write all the files at once.
In preparation for this, add a way to specify an output directory for the
files.
Signed-off-by: Simon Glass <sjg@chromium.org>
Normally dtoc outputs to a file but it also offers a way to write output
to stdout. At present the test for that does not actually check that the
output is correct. Add this to the test.
This uses a member variable to hold the expected text, so it can be used
in muitiple places.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present dtoc uses '-' internally to mean that output should go to
stdout. This is not necessary and None is more convenient. Update it.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present this member holds a simple list of driver names. Update it to
be a dict of DriverInfo, with the name being the key. This will allow more
information to be added about each driver, in future patches.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reduce the length of output_node() futher by moving the struct-output
functionality into a two separate functions.
Signed-off-by: Simon Glass <sjg@chromium.org>
It is annoying to have this function inside its parent since it makes the
parent longer and hard to read. Move it to the top level.
Signed-off-by: Simon Glass <sjg@chromium.org>
These have crept in again. Update the file to fix all but these ones:
dtb_platdata.py:143:0: R0902: Too many instance attributes (10/7)
(too-many-instance-attributes)
dtb_platdata.py:713:0: R0913: Too many arguments (6/5)
(too-many-arguments)
Signed-off-by: Simon Glass <sjg@chromium.org>
The spl-test4 node deliberately has an invalid compatible string. This
causes a warning from dtoc and the check it does is not really necessary.
Drop it, to avoid the warning and associated confusion.
Signed-off-by: Simon Glass <sjg@chromium.org>
We use 'priv' for private data but often use 'platdata' for platform data.
We can't really use 'pdata' since that is ambiguous (it could mean private
or platform data).
Rename some of the latter variables to end with 'plat' for consistency.
Signed-off-by: Simon Glass <sjg@chromium.org>
Update this file to reduce the number of pylint warnings. Also add a few
missing comments while we are here.
Signed-off-by: Simon Glass <sjg@chromium.org>
Update this, mostly to add comments for argument and return types. It is
probably still too early to use type hinting since it was introduced in
3.5.
Signed-off-by: Simon Glass <sjg@chromium.org>
This is useful anymore, since we always want to call chr() in Python 3.
Drop it and adjust callers to use chr().
Also drop ToChars() which is no-longer used.
Signed-off-by: Simon Glass <sjg@chromium.org>
We don't need these now that everything uses Python 3. Remove them and
the extra code in GetBytes() and ToBytes() too.
Signed-off-by: Simon Glass <sjg@chromium.org>
Use an Enum instead of the current ad-hoc constants, so that there is a
data type associated with each 'type' value.
Signed-off-by: Simon Glass <sjg@chromium.org>
With of-platdata, the devicetree is supposed to specify all the devices
in the system. So far this hasn't really mattered since of-platdata still
works correctly.
However, new of-platdata features rely on numbering the devices in a
particular order so that they can be referenced by a single integer. It is
tricky to implement this efficiently when other devices are present in the
build.
To address this, disable use of U_BOOT_DEVICE() when of-platdata is
enabled. This seems acceptable as it is not supposed to be used at all,
except in SPL/TPL, where of-platdata is the recommended approach.
This breaks one non-compliant boards at present: mx6cuboxi
Signed-off-by: Simon Glass <sjg@chromium.org>
(disable CONFIG_IMX_THERMAL for mx6cuboxi to avoid a build error)
At present we use a 'node' pointer in the of-platadata phandle_n_arg
structs. This is a pointer to the struct driver_info for a particular
device, and we can use it to obtain the struct udevice pointer itself.
Since we don't know the struct udevice pointer until it is allocated in
memory, we have to fix up the phandle_n_arg.node at runtime. This is
annoying since it requires that SPL's data is writable and adds a small
amount of extra (generated) code in the dm_populate_phandle_data()
function.
Now that we can find a driver_info by its index, it is easier to put the
index in the phandle_n_arg structures.
Update dtoc to do this, add a new device_get_by_driver_info_idx() to look
up a device by drive_info index and update the tests to match.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present of-platdata does not provide parent information. But this is
useful for I2C devices, for example, since it allows them to determine
which bus they are on.
Add support for setting the parent correctly, by storing the parent
driver_info index in dtoc and reading this in lists_bind_drivers(). This
needs multiple passes since we must process children after their parents
already have been bound.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present an integer is converted to bytes incorrectly. The whole 32-bit
integer is inserted as the first element of the byte array, and the other
three bytes are skipped. This was not noticed because the unit test did
not check it, and the functional test was checking for wrong values.
Update the code to handle this as a special case. Add one more test to
cover all code paths.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present the structures are written in name order, but parents have to
be written before their children, so the file does not end up being in
order. The order of nodes in _valid_nodes matches the order of the
devicetree.
Update the code so that _valid_nodes is in sorted order, by C name of
the structure. This allows us to assign a sequential ordering to each
U_BOOT_DEVICE() declaration.
U-Boot's linker lists are also ordered alphabetically, which means that
the order in the driver_info list will match the order used by dtoc. This
defines an index ('idx') for the U_BOOT_DEVICE declarations. They appear
in alphabetical order, numbered from 0 in _valid_nodes and in the
driver_info linker list.
Add a comment against each declaration, showing the idx value.
Signed-off-by: Simon Glass <sjg@chromium.org>
Add documentation to this function as well as generate_structs(), where
the return value is ultimately passed in.
Signed-off-by: Simon Glass <sjg@chromium.org>
Currently, binman always runs the compile tools like cc, objcopy, strip,
etc. using their literal name. Instead, this patch makes it use the
target-specific versions by default, derived from the tool-specific
environment variables (CC, OBJCOPY, STRIP, etc.) or from the
CROSS_COMPILE environment variable.
For example, the u-boot-elf etype directly uses 'strip'. Trying to run
the tests with 'CROSS_COMPILE=i686-linux-gnu- binman test' on an arm64
host results in the '097_elf_strip.dts' test to fail as the arm64
version of 'strip' can't understand the format of the x86 ELF file.
This also adjusts some command.Output() calls that caused test errors or
failures to use the target versions of the tools they call. After this,
patch, an arm64 host can run all tests with no errors or failures using
a correct CROSS_COMPILE value.
Signed-off-by: Alper Nebi Yasak <alpernebiyasak@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
After latest improvements in dtoc, compatible strings are checked
against driver and driver alias list to get a valid driver name. With
this new feature the list of compatible string aliases seems not
useful any more.
Signed-off-by: Walter Lozano <walter.lozano@collabora.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Currently dtoc checks if the first compatible string in a dtb node
matches either a driver o driver alias name, without taking into account
any other compatible string in the list. In the case that no driver matches
the first compatible string a warning is printed and the U_BOOT_DEVICE is
not being declared correctly.
This patch adds dtoc's support for try all the compatible strings in the
dtb node, in an effort to find the correct driver.
Signed-off-by: Walter Lozano <walter.lozano@collabora.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Add an additional test to dtoc in order improve the coverage,
specifically to take into account the case of unicode error when
scanning drivers.
Signed-off-by: Walter Lozano <walter.lozano@collabora.com>
Add a method for adding a property containing arbitrary bytes. Make sure
that the tree can expand as needed in this case.
Signed-off-by: Simon Glass <sjg@chromium.org>
Add a method for adding a property containing arbitrary bytes. Make sure
that the tree can expand as needed in this case.
Signed-off-by: Simon Glass <sjg@chromium.org>
The start of an ACPI path typically has backslashes in it. These are not
preserved during the translation from device tree to C code, since dtc
(correctly) uses the first backslash as an escape character, and dtoc
therefore leaves it out of the C string.
Fix this with special-case handling.
Signed-off-by: Simon Glass <sjg@chromium.org>
Add a test for dtoc taking into account the cd-gpios property.
Signed-off-by: Walter Lozano <walter.lozano@collabora.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Currently dtoc does not support the property cd-gpios used to declare
the gpios for card detect in mmc.
This patch adds support to cd-gpios property.
Signed-off-by: Walter Lozano <walter.lozano@collabora.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
In the current implementation, when dtoc parses a dtb to generate a struct
platdata it converts the information related to linked nodes as pointers
to struct platdata of destination nodes. By doing this, it makes
difficult to get pointer to udevices created based on these
information.
This patch extends dtoc to use struct driver_info when populating
information about linked nodes, which makes it easier to later get
the devices created. In this context, reimplement functions like
clk_get_by_index_platdata() which made use of the previous approach.
Signed-off-by: Walter Lozano <walter.lozano@collabora.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
As dtoc now performs checks for valid driver names, when running dtoc
tests several warnings arise as these tests don't use valid driver
names.
This patch adds an option to disable those warning, which is only
intended for running tests.
Signed-off-by: Walter Lozano <walter.lozano@collabora.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Currently dtoc scans dtbs to convert them to struct platdata and
to generate U_BOOT_DEVICE entries. These entries need to be filled
with the driver name, but at this moment the information used is the
compatible name present in the dtb. This causes that only nodes with
a compatible name that matches a driver name generate a working
entry.
In order to improve this behaviour, this patch adds to dtoc the
capability of scan drivers source code to generate a list of valid driver
names and aliases. This allows to generate U_BOOT_DEVICE entries using
valid driver names and rise a warning in the case a name is not valid.
Signed-off-by: Walter Lozano <walter.lozano@collabora.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Open files in utf-8 mode:
Signed-off-by: Simon Glass <sjg@chromium.org>
Add missing information about internal class members in order to make
the code easier to follow.
Signed-off-by: Walter Lozano <walter.lozano@collabora.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Now that we are using absolute paths we can remove some of the sys.path
mangling that appears in the tools.
We only need to add the path to 'tools/' so that everything can find
modules relative to that directory.
The special paths for finding pylibfdt remain.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present patman sets the python path on startup so that it can access
the libraries it needs. If we convert to use absolute imports this is not
necessary.
Move patman to use absolute imports. This requires changes in tools which
use the patman libraries (which is most of them).
Signed-off-by: Simon Glass <sjg@chromium.org>
Python does not like the module name being the same as the module
directory. To allow dtoc modules to be used from other tools, rename
it.
Signed-off-by: Simon Glass <sjg@chromium.org>
Fix some errors pointed out by 'make refcheckdocs'.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Since the state module holds references to all the device trees used by
binman, it must be updated when the device trees are updated. Add support
for this.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present EnsureCompiled() uses an file from the 'output' directory (in
the tools module) when compiling the device tree. This is fine in most
cases, allowing useful inspection of the output files from binman.
However in functional tests, _SetupDtb() creates an output directory and
immediately removes it afterwards. This serves no benefit and just
confuses things, since the 'official' output directory is supposed to be
created and destroyed in control.Binman().
Add a new parameter for the optional temporary directory to use, and use a
separate temporary directory in _SetupDtb().
Signed-off-by: Simon Glass <sjg@chromium.org>
This function currently fails if the root node is requested. Requesting
the root node is sometimes useful, so fix the bug.
Signed-off-by: Simon Glass <sjg@chromium.org>
It is confusing when something goes wrong with a device tree which was
created from data rather than a file, since there is no identifying
filename. Add an option to provide this. Use the filename as the name,
where available
Signed-off-by: Simon Glass <sjg@chromium.org>
At present a Python exception is raised which does not show the node
information. Add a more helpful exception in this case.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present 'dtoc -t' return a success code even if some of the tests fail.
Fix this by checking the test result and setting the exit code. This
allows 'make qcheck' to function as expected.
Signed-off-by: Simon Glass <sjg@chromium.org>
The only change needed is to update get_value() to support the 'bytes'
type correctly with Python 3.
With this the dtoc unit tests pass with both Python 2 and 3:
PYTHONPATH=/tmp/b/sandbox_spl/scripts/dtc/pylibfdt python \
./tools/dtoc/dtoc -t
PYTHONPATH=~/cosarm/dtc/pylibfdt:tools/patman python3 \
./tools/dtoc/dtoc -t
Signed-off-by: Simon Glass <sjg@chromium.org>
Since we are now using the bytes type in Python 3, the conversion in
fdt32_to_cpu() is not necessary, so drop it.
Also use 'int' instead of 'long' to convert the integer value, since
'long' is not present in Python 3.
With this, test_fdt passes with both Python 2 and 3:
PYTHONPATH=/tmp/b/sandbox_spl/scripts/dtc/pylibfdt python \
./tools/dtoc/test_fdt -t
PYTHONPATH=~/cosarm/dtc/pylibfdt:tools/patman python3 \
./tools/dtoc/test_fdt -t
Signed-off-by: Simon Glass <sjg@chromium.org>
Add a simple unit test for one of the cases of this function, so that any
fault can be seen directly, rather than appearing through the failure of
another test.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present this test does not check the upper 32 bits of the returned
value. Add some additional tests to cover this.
Signed-off-by: Simon Glass <sjg@chromium.org>
The .dtb files are binary so we should open them as binary files. This
allows Python 3 to use the correct 'bytes' type.
Signed-off-by: Simon Glass <sjg@chromium.org>
Update this class to work correctly on Python 3 and to pass its unit
tests. The only required change is to deal with a difference in the
behaviour of sorting with a None value.
Signed-off-by: Simon Glass <sjg@chromium.org>
In Python 3 bytes and str are separate types. Use bytes to ensure that
the code functions correctly with Python 3.
Signed-off-by: Simon Glass <sjg@chromium.org>
The difference between the bytes and str types in Python 3 requires a
number of minor changes to this function. Update it to handle the input
data using the 'bytes' type. Create two useful helper functions which can
be used by other modules too.
Signed-off-by: Simon Glass <sjg@chromium.org>
This method does not actually use any members of the Prop class. Move it
out of the class so that it is easier to add unit tests.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present the order of struct field emitted by this tool depends on the
internal workings of a Python dictionary. Sort the fields to remove this
uncertainty, so that tests are deterministic.
Signed-off-by: Simon Glass <sjg@chromium.org>
Update a few things in this tool so that they support Python 3:
- print statements
- iteritems()
- xrange()
Signed-off-by: Simon Glass <sjg@chromium.org>
generate define for an alias only if the struct is not
created already.
This prevents compilerwarning:
PLAT spl/dts/dt-platdata.o
spl/dts/dt-platdata.c:11:46: error: missing braces around initializer [-Werror=missing-braces]
static const struct dtd_simple_bus dtv_ahb = {
^
spl/dts/dt-platdata.c:20:46: error: missing braces around initializer [-Werror=missing-braces]
static const struct dtd_simple_bus dtv_apb = {
^
cc1: all warnings being treated as errors
on the at91 based taurus board. Reason is in at91sam9260.dtsi
is defined:
ahb {
compatible = "simple-bus";
ranges;
and later:
pinctrl: pinctrl@fffff400 {
compatible = "atmel,at91rm9200-pinctrl", "simple-bus";
ranges = <0xfffff400 0xfffff400 0x600>;
without this patch dtoc generates:
struct dtd_atmel_at91rm9200_pinctrl {
fdt32_t atmel_mux_mask[6];
fdt32_t ranges[3];
fdt32_t reg[6];
};
struct dtd_simple_bus {
bool ranges;
};
"#define dtd_simple_bus dtd_atmel_at91rm9200_pinctrl"
and the line with "define dtd_simple_bus..." introduces
the warning. This define is not needed.
Signed-off-by: Heiko Schocher <hs@denx.de>
The dtoc tests need to be adapted to dtoc being changed to output platdata
structs as const, which has been introduced in commit 7d05d3a8e3 ("dtoc:
make generated platdata structs const").
Fixes: 7d05d3a8e3 ("dtoc: make generated platdata structs const")
Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
The platdata initialization structs are currently generated into .rwdata.
Make sure the are put into .rodata by generating them as const.
Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
At present the tests run one after the other using a single CPU. This is
not very efficient. Bring in the concurrencytest module and run the tests
concurrently, using one process for each CPU by default. A -P option
allows this to be overridden, which is necessary for code-coverage to
function correctly.
This requires fixing a few tests which are currently not fully
independent.
At some point we might consider doing this across all pytests in U-Boot.
There is a pytest version that supports specifying the number of processes
to use, but it did not work for me.
Signed-off-by: Simon Glass <sjg@chromium.org>
There are a few test cases which print output. Suppress this so that tests
can run silently in the normal case.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present 'make check' leaves some temporary directories around. Part of
this is because we call tools.PrepareOutputDir() twice in some cases,
without calling tools.FinaliseOutputDir() in between.
Fix this.
Signed-off-by: Simon Glass <sjg@chromium.org>
This module is often available in the sandbox_spl build created by
'make check'. Use this as a default path so that just typing 'binman -t'
(without setting PYTHONPATH) will generally run the tests.
Signed-off-by: Simon Glass <sjg@chromium.org>
Add a few more functions which allow creating and modifying property
values. If only we could do this so easily in the real world.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present we require the caller to manually update the device tree using
individual calls to libfdt functions. This is not ideal. It would be
better if we could make changes using the Python structure and then call a
Sync() function to write them back.
Add this feature to the Fdt class. Update binman and the tests to match.
Signed-off-by: Simon Glass <sjg@chromium.org>
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>
Add a function which can decode a property containing a list of phandles.
This is useful for finding nodes linked to a property. Also provide a way
to look up a single phandle and get the Fdt object from a Node.
Signed-off-by: Simon Glass <sjg@chromium.org>
It is sometimes useful to have an area of the image which is all zeroes,
or all 0xff. This can often be achieved by padding the size of an an
existing entry and setting the pad byte for an entry or image.
But it is useful to have an explicit means of adding blocks of repeating
data to the image. Add a 'fill' entry type to handle this.
Signed-off-by: Simon Glass <sjg@chromium.org>
Sometimes it is useful to pass binman the value of an entry property from
the command line. For example some entries need access to files and it is
not always convenient to put these filenames in the image definition
(device tree).
Add a -a option which can be used like this:
-a<prop>=<value>
where
<prop> is the property to set
<value> is the value to set it to
Signed-off-by: Simon Glass <sjg@chromium.org>
At present some warnings are printed to indicate failures which are a
known part of running the tests. Suppress these.
Signed-off-by: Simon Glass <sjg@chromium.org>
Add more tests to increase dtoc code coverage to 100%.
Correct a whitespace error in some test .dts files at the same time.
Signed-off-by: Simon Glass <sjg@chromium.org>
Add a -T option to run a code-coverage test on dtoc. At present this is
about 96%. Future work will increase it to 100%.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present a property with a single phandle looks like an integer value
to dtoc. Correct this by adjusting it in the phandle-processing code.
Add a test for this.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present the algortihm is not correct since it will return the root node
if the requested node is not found and there are no slashes in the
requested node name. Fix this and add a test.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present the Fdt class does not keep track of property offsets if they
change due to removal of properties. Update the code to handle this, and
add a test.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present only some of the fdt functionality is tested. Add more tests to
cover the rest of it. Also turn on test coverage, which is now 100% with
a small exclusion for a Python 3 feature.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present the Fdt class has its own copy of the device tree. This is
confusing an unnecessary now that pylibfdt has its own. Drop it and
provide access functions to the buffer.
This allows us to move the rest of the implementation to use pylibfdt
methods instead of directly calling libfdt stubs.
Signed-off-by: Simon Glass <sjg@chromium.org>
Now that pylibfdt supports a fuller API we don't need to directly call
the libfdt stubs. Update the code to use the Fdt methods instead.
Some other cases remain which will be tidied up in a later commit, since
they need larger changes.
Signed-off-by: Simon Glass <sjg@chromium.org>
When a test fails due to an output mismatch (e.g. due to a new property
being adding to a test file) it is currently hard to update the test to
the new output. In particular the tabs in the file are written as \t in
the Python tests.
To make this easier, write both the expected and actual results to /tmp
to allow use of meld, and copying into the test.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present this module is tested via the dtoc tests. This is a bit painful
since the tests are at a higher level and so failures are more difficult
to diagnose.
Add some tests that exercise the fdt module directly.
Signed-off-by: Simon Glass <sjg@chromium.org>
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>
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from. So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry. Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.
In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.
This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents. There's also a few places where I found we did not have a tag
and have introduced one.
Signed-off-by: Tom Rini <trini@konsulko.com>
Thomas reported U-Boot failed to build host tools if libfdt-devel
package is installed because tools include libfdt headers from
/usr/include/ instead of using internal ones.
This commit moves the header code:
include/libfdt.h -> include/linux/libfdt.h
include/libfdt_env.h -> include/linux/libfdt_env.h
and replaces include directives:
#include <libfdt.h> -> #include <linux/libfdt.h>
#include <libfdt_env.h> -> #include <linux/libfdt_env.h>
Reported-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
All of these host tools are apparently written for Python2,
not Python3.
Use 'python2' in the shebang line according to PEP 394
(https://www.python.org/dev/peps/pep-0394/).
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
The system device-tree compiler may not be new enough to run the tests we
use in U-Boot (e.g. with binman). Allow use of a DTC environment variable
to point to the correct dtc. If not defined, the dtc on the default PATH
is used.
Signed-off-by: Simon Glass <sjg@chromium.org>
Add a header that indicates that the files generated by dtoc should not be
modified.
Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Kever Yang <kever.yang@rock-chips.com>
At present dtoc has a very simplistic view of phandles. It assumes that
a property has only a single phandle with a single argument (i.e. two
cells per property).
This is not true in many cases. Enhance the implementation to scan all
phandles in a property and to use the correct number of arguments (which
can be 0, 1, 2 or more) when generating the C code. For the struct
definitions, use a struct which can hold the maximum number of arguments
used by the property.
Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Kever Yang <kever.yang@rock-chips.com>
We want to support more than one phandle argument. It makes sense to use
an array for this rather than discrete struct members. Adjust the code to
support this. Rename the member to 'arg' instead of 'id'.
Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Kever Yang <kever.yang@rock-chips.com>
When writing values from properties which contain phandles, dtoc currently
writes 8 phandles per line. Change this to write one phandle per line.
This helps reduce line length, since phandles are generally longer and may
have arguments.
Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Kever Yang <kever.yang@rock-chips.com>
Rather than naming the phandle struct according to the number of cells it
uses (e.g. struct phandle_2_cell) name it according to the number of
arguments it has (e.g. struct phandle_1_arg). This is a more intuitive
naming.
Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Kever Yang <kever.yang@rock-chips.com>
Update this function to return more detail about a property that contains
phandles. This will allow (in a future commit) more accurate handling of
these properties.
Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Kever Yang <kever.yang@rock-chips.com>
This function will need to have access to class members once we enhance it
to support multiple phandle values. In preparation for that, move it into
the class.
Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Kever Yang <kever.yang@rock-chips.com>
Now that the Fdt class can map phandles to the associated nodes, use that
instead of a separate implementation.
Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Kever Yang <kever.yang@rock-chips.com>
Add a map from phandles to nodes. This can be used by clients of the the
class instead of maintaining this themselves.
Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Kever Yang <kever.yang@rock-chips.com>
At present dtoc assumes that all 'reg' properties have both an address and
a size. For I2C devices we do not have this. Adjust dtoc to cope.
Reported-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Kever Yang <kever.yang@rock-chips.com>
When using 32-bit addresses dtoc works correctly. For 64-bit addresses it
does not since it ignores the #address-cells and #size-cells properties.
Update the tool to use fdt64_t as the element type for reg properties when
either the address or size is larger than one cell. Use the correct value
so that C code can obtain the information from the device tree easily.
Alos create a new type, fdt_val_t, which is defined to either fdt32_t or
fdt64_t depending on the word size of the machine. This type corresponds
to fdt_addr_t and fdt_size_t. Unfortunately we cannot just use those types
since they are defined to phys_addr_t and phys_size_t which use
'unsigned long' in the 32-bit case, rather than 'unsigned int'.
Add tests for the four combinations of address and size values (32/32,
64/64, 32/64, 64/32). Also update existing uses for rk3399 and rk3368
which now need to use the new fdt_val_t type.
Signed-off-by: Simon Glass <sjg@chromium.org>
Suggested-by: Heiko Stuebner <heiko@sntech.de>
Reported-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Tested-by: Kever Yang <kever.yang@rock-chips.com>
Large arrays can result in lines with hundreds or thousands of characters
which is not very editor-friendly. To avoid this, addjust the tool to
group values 8 per line.
Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Kever Yang <kever.yang@rock-chips.com>
When dealing with multi-cell values we need a type that can hold this
value. Add this and a function to process it from a list of cell values.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Tested-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Tested-by: Kever Yang <kever.yang@rock-chips.com>
We need to be able to search back up the tree for #address-cells and
#size-cells. Record the parent of each node to make this easier.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Tested-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Tested-by: Kever Yang <kever.yang@rock-chips.com>
This function uses several separate string replaces where a regular
expression might seem more reasonable. Add a comment justifying the way it
is currently done.
Signed-off-by: Simon Glass <sjg@chromium.org>
Collect the main logic of dtoc into a function and put it into
dtb_platdata. This will allow tests to use this function instead of
duplicating the code themselves.
Signed-off-by: Simon Glass <sjg@chromium.org>
Rather than using static functions within the class, move them out of the
class. This will make it slightly easier for tests to call them.
Signed-off-by: Simon Glass <sjg@chromium.org>
This option is the only one actually used by the dtb_platdata class. Pass
it explicitly to avoid needing to pass the whole option object to the
constructor.
Signed-off-by: Simon Glass <sjg@chromium.org>
To simplify running tests we should move this class into its own file.
This allows the tests to import it without having to import dtoc.py, which
runs the tests.
Signed-off-by: Simon Glass <sjg@chromium.org>
Sometimes a node will have multiple compatible strings. Drivers may use
one or the other so the best approach seems to be to #define them to be
equivalent.
Update dtoc to support this.
Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Kever Yang <kever.yang@rock-chips.com>
This file was used to select between the normal and fallback libfdt
implementations. Now that we only have one, it is not needed.
Drop it and fix up all users.
Signed-off-by: Simon Glass <sjg@chromium.org>
Since we only have one Fdt implementation now we don't need to have a base
class. Merge the implementation and the base class together.
Signed-off-by: Simon Glass <sjg@chromium.org>
Now that this module has been accepted upstream we should stop using the
local U-Boot one. In preparation for this, rename it to indicate it is for
legacy use.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present dtoc assumes that nodes which are phandles do not themselves
reference other phandle nodes. Unfortunately this is not necessarilly
true. As a result we can currently output C code which does not compile
because a node declaration can be referenced before it is declared.
Adjust the code to explicitly output all phandle nodes needed by node
before the node itself is output.
This fixes building with the latest rk3399-firefly.dts from Linux, which
has reordered the nodes.
Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Kever Yang <kever.yang@rock-chips.com>
The code to generate the tables is quite long. Move the node-output code
into its own function.
Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Kever Yang <kever.yang@rock-chips.com>
With Python 3.5.2 encode will throw an exception if val is a byte array.
Decode it to a string first. This assumes it's utf-8, if it's not valid
utf-8 it will throw an exception.
Signed-off-by: George McCollister <george.mccollister@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
Previously, dtoc could only process the top-level nodes which led to
device nodes in hierarchical trees to be ignored. E.g. the mmc0 node
in the following example would be ignored, as only the soc node was
processed:
/ {
soc {
mmc0 {
/* ... */
};
};
};
This introduces a recursive helper method ScanNode, which is used by
ScanTree to recursively parse the entire tree hierarchy.
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Right now the u-boot,dm-pre-reloc flag will make each marked node
always appear in both spl and tpl. But systems needing an additional
tpl might have special constraints for each, like the spl needing to
be very tiny.
So introduce two additional flags to mark nodes for only spl or tpl
environments and introduce a function dm_fdt_pre_reloc to automate
the necessary checks in code instances checking for pre-relocation
flags.
The behaviour of the original flag stays untouched and still marks
a node for both spl and tpl.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Kever Yang <kever.yang@rock-chips.com>
If there is a '.' in a compatible string, then dtoc will produce a struct
with a name containing a '.'. This won't work, so replace it with '_'.
Also add a suitable test to the sandbox device tree to catch this.
Signed-off-by: Simon Glass <sjg@chromium.org>
If we use the '/' operator then python 3.x will produce a float, and
refuse to multiply the string sequence in Conv_name_to_c by it with:
TypeError: can't multiply sequence by non-int of type 'float'
Use the '//' operator instead to enforce that we want integer rather
than floating point division.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Acked-by: Simon Glass <sjg@chromium.org>
On python 3.x struct.unpack will complain if we provide it with a
string since it expects to operate on a bytes object. In order to
satisfy this requirement, encode the string to a bytes object when
running on python 3.x.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Acked-by: Simon Glass <sjg@chromium.org>
In python 3.x the iteritems() method has been removed from dictionaries,
and the items() method does effectively the same thing. On python 2.x
using items() is a little less efficient since it involves copying data,
but as speed isn't a concern in the affected code switch to using
items() anyway for simplicity.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Acked-by: Simon Glass <sjg@chromium.org>
We need to test both the normal (Python libfdt module) and fallback (fdtget)
implementations of the Fdt class. Add a way to select which implementation
to use.
Signed-off-by: Simon Glass <sjg@chromium.org>
