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>
