Commit graph

29 commits

Author SHA1 Message Date
Simon Glass
6101253818 dtoc: Make GetArgs() more flexible
At present it is not possible to have arguments which include spaces.
Update the function to only split the args if the property is a single
string. This is a bit inconsistent, but might still be useful.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Alper Nebi Yasak <alpernebiyasak@gmail.com>
Suggested-by: Alper Nebi Yasak <alpernebiyasak@gmail.com>
2022-03-18 19:24:24 -06:00
Simon Glass
7e4b66aa87 dtoc: Support reading a list of arguments
It is helpful to support a string or stringlist containing a list of
space-separated arguments, for example:

   args = "-n fred", "-a", "123";

This resolves to the list:

   -n fred -a 123

which can be passed to a program as arguments.

Add a helper to do the required processing.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-02-22 10:05:44 -07:00
Simon Glass
d98006997c patman: Convert camel case in command.py
Convert this file to snake case and update all files which use it.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-02-09 12:26:12 -07:00
Simon Glass
c1aa66e75d patman: Convert camel case in tools.py
Convert this file to snake case and update all files which use it.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-02-09 12:26:12 -07:00
Simon Glass
1b5a5331f3 dtoc: Add support for reading string-list properties
Add a function to read a list of strings from the devicetree.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-12-05 09:22:41 -07:00
Simon Glass
40b4d647c6 dtoc: Add support for reading fixed-length bytes properties
Add functions to read a sequence of bytes from the devicetree.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-12-02 09:16:22 -07:00
Simon Glass
d866e62917 dtoc: Add support for reading 64-bit ints
Add functions to read a 64-bit integer property from the devicetree.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-12-02 09:15:43 -07:00
Alper Nebi Yasak
1e4687aa47 binman: Use target-specific tools when cross-compiling
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>
2020-09-22 12:54:13 -06:00
Simon Glass
bf776679a7 patman: Move to absolute imports
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>
2020-04-26 14:25:21 -06:00
Simon Glass
a004f29464 binman: Tidy up _SetupDtb() to use its own temporary file
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>
2019-07-29 09:38:06 -06:00
Simon Glass
209a55976b dtoc: Update fdt_util for Python 3
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>
2019-07-10 16:52:58 -06:00
Simon Glass
94a7c603b4 dtoc: Add a function to obtain a list of phandles
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>
2018-08-01 16:30:48 -06:00
Simon Glass
3af8e49cef binman: Add an entry filled with a repeating byte
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>
2018-08-01 16:30:48 -06:00
Simon Glass
53af22a995 binman: Add support for passing arguments to entries
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>
2018-08-01 16:30:47 -06:00
Simon Glass
dc08ecc90c dtoc: Add missing comments to fdt_util
This module has a few missing comments. Add them.

Signed-off-by: Simon Glass <sjg@chromium.org>
2018-08-01 16:30:47 -06:00
Simon Glass
fe57c784ad dtoc: Avoid unwanted output during tests
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>
2018-07-09 09:11:00 -06:00
Simon Glass
2a2d91d0d6 dtoc: Update fdt tests to increase code coverage
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>
2018-07-09 09:11:00 -06:00
Tom Rini
83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
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>
2018-05-07 09:34:12 -04:00
Simon Glass
3ed0de31b4 dtoc: Allow DTC environment variable to provide path to dtc
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>
2018-01-15 18:29:21 -07:00
Simon Glass
d09682ef8c binman: Disable the no-unit_address_vs_reg warnings
These warnings are not useful for binman tests. Disable them.

Signed-off-by: Simon Glass <sjg@chromium.org>
2017-11-22 18:05:38 -07:00
Simon Glass
c20ee0ed07 dtoc: Add support for 32 or 64-bit addresses
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>
2017-09-15 05:27:38 -06:00
Simon Glass
fbdfd228fb dtoc: Add a 64-bit type and a way to convert cells into 64 bits
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>
2017-09-15 05:24:39 -06:00
George McCollister
f156b5b597 dtoc: Decode val if it's a byte string
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>
2017-04-13 11:43:49 -06:00
Paul Burton
c4c5f9eefb dtoc: Decode strings for struct.unpack on python 3.x
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>
2016-10-09 09:30:32 -06:00
Simon Glass
8f224b3734 dtoc: Add methods for reading data from properties
Provide easy helpers for reading integer, string and boolean values from
device-tree properties.

Signed-off-by: Simon Glass <sjg@chromium.org>
2016-09-18 21:04:39 -06:00
Simon Glass
20024daee5 dtoc: Correct quotes in fdt_util
The style is to use single quotes for strings where possible. Adjust this
function.

Signed-off-by: Simon Glass <sjg@chromium.org>
2016-09-18 21:04:39 -06:00
Simon Glass
355c67c35a dtoc: Allow the device tree to be compiled from source
If a source device tree is provide to the Fdt() constructors, compile it
automatically. This will be used in tests, where we want to build a
particular test .dts file and check that it works correctly in binman.

Signed-off-by: Simon Glass <sjg@chromium.org>
2016-09-18 21:04:39 -06:00
Simon Glass
bc1dea3656 dtoc: Move BytesToValue() and GetEmpty() into PropBase
These functions are currently in a separate fdt_util file. Since they are
only used from PropBase and subclasses, it makes sense for them to be in the
PropBase class.

Move these functions into fdt.py along with the list of types.

Signed-off-by: Simon Glass <sjg@chromium.org>
2016-09-18 21:04:38 -06:00
Simon Glass
ec564b47da dm: Add a library to provide simple device-tree access
This Python library provides a way to access the contents of the device
tree. It uses fdtget, so is inefficient for larger device tree files.

Signed-off-by: Simon Glass <sjg@chromium.org>
2016-07-14 20:40:24 -06:00