The build system already automatically looks for and includes an
in-tree *-u-boot.dtsi when building the control .dtb. However, there
are some things that are awkward to maintain in such an in-tree file,
most notably the metadata associated to public keys used for verified
boot.
The only "official" API to get that metadata into the .dtb is via
mkimage, as a side effect of building an actual signed image. But
there are multiple problems with that. First of all, the final U-Boot
(be it U-Boot proper or an SPL) image is built based on a binary
image, the .dtb, and possibly some other binary artifacts. So
modifying the .dtb after the build requires the meta-buildsystem
(Yocto, buildroot, whatnot) to know about and repeat some of the steps
that are already known to and handled by U-Boot's build system,
resulting in needless duplication of code. It's also somewhat annoying
and inconsistent to have a .dtb file in the build folder which is not
generated by the command listed in the corresponding .cmd file (that
of course applies to any generated file).
So the contents of the /signature node really needs to be baked into
the .dtb file when it is first created, which means providing the
relevant data in the form of a .dtsi file. One could in theory put
that data into the *-u-boot.dtsi file, but it's more convenient to be
able to provide it externally: For example, when developing for a
customer, it's common to use a set of dummy keys for development,
while the consultants do not (and should not) have access to the
actual keys used in production. For such a setup, it's easier if the
keys used are chosen via the meta-buildsystem and the path(s) patched
in during the configure step. And of course, nothing prevents anybody
from having DEVICE_TREE_INCLUDES point at files maintained in git, or
for that matter from including the public key metadata in the
*-u-boot.dtsi directly and ignore this feature.
There are other uses for this, e.g. in combination with ENV_IMPORT_FDT
it can be used for providing the contents of the /config/environment
node, so I don't want to tie this exclusively to use for verified
boot.
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Fix doc formatting error (make htmldocs)
Signed-off-by: Simon Glass <sjg@chromium.org>
For whatever reason, usb_setup_ehci_gadget removes and probes USB device
0. However, not all systems have a device 0. Use the first device
instead.
The device probed should probably have something to do with the
controller (as specified by e.g. ums <controller> or fastboot
<controller>). In fact, I find it odd that we probe the USB device in
the first place, because this is just to set up the gadget itself.
Presumably, the controller should be probed by usb_gadget_initialize
somehow.
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Add some tables needed for ARM devices, including more MADT subtables,
a CSRT descriptor, GTDT and PPTT.
WIP: This needs comments added.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present this list is used to collect items within the DSDT and SSDT
tables. It is useful for it to collect the whole tables as well, so there
is a list of what was created and which write created each one.
Refactor the code accordingly.
Signed-off-by: Simon Glass <sjg@chromium.org>
Move this over to use a writer file, moving the code from the x86
implementation.
There is no need to store a separate variable since we can simply access
the ACPI context.
With this, the original monolithic x86 function for writing ACPI tables
is gone.
Note that QEMU has its own implementation.
Signed-off-by: Simon Glass <sjg@chromium.org>
Update this function to the newer style, so we can avoid passing and
returning an address through this function.
Also move this function out of the x86 code so it can be used by other
archs.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Each board has its own way of creating this table. Rather than calling the
acpi_create_fadt() function for each one from a common acpi_write_fadt()
function, just move the writer into the board-specific code.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Move this table over to use a writer function, moving the code from the
x86 implementation.
Add a pointer to the DSDT in struct acpi_ctx so we can reference it later.
Disable this table for sandbox since we don't actually compile real ASL
code.
Signed-off-by: Simon Glass <sjg@chromium.org>
Move this table over to use a writer function, moving the code from the
x86 implementation.
Add a pointer to the DSDT in struct acpi_ctx so we can reference it later.
Signed-off-by: Simon Glass <sjg@chromium.org>
Use the new ACPI writer to write the base tables at the start of the area,
moving this code from the x86 implementation.
Signed-off-by: Simon Glass <sjg@chromium.org>
Use the new ACPI writer to write the ACPI tables. At present this is all
done in one monolithic function. Future work will split this out.
Unfortunately the QFW write_acpi_tables() function conflicts with the
'writer' version, so disable that for sandbox.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present acpi_setup_base_tables() both sets up the ACPI context and
writes out the base tables.
We want to use an ACPI writer to write the base tables, so split this
function into two, with acpi_setup_ctx() doing the context set, and
acpi_setup_base_tables() just doing the base tables.
Disable the writer's write_acpi_tables() function for now, to avoid
build errors. It is enabled in a following patch.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present we call lots of functions to generate the required ACPI tables.
It would be better to standardise these functions and allow them to be
automatically collected and used when needed.
Add a linker list to handle this.
Signed-off-by: Simon Glass <sjg@chromium.org>
It is useful to record the start of an ACPI table so that offsets from
that point can be easily calculated.
Add this to the context and set it before calling the writer method.
Signed-off-by: Simon Glass <sjg@chromium.org>
Some .asl files include others using the iasl 'include' directive. This
needs to be able to find the files referenced.
For an out-of-tree build the source directory is not the current
directory. Moreover, U-Boot preprocesses the input file and puts the
result in the output directory. So iasl does not know where the real
source file came from.
Add a -I option to produce the correct behaviour. We could add an option
to not preprocess the .asl source, but for now that seems unnecessary.
Signed-off-by: Simon Glass <sjg@chromium.org>
Rather than keying everything off ACPIGEN, use the main
GENERATE_ACPI_TABLE option to determine whether the core ACPI code
is included. Make sure these option are not enabled in SPL/TPL since we
never generate tables there.
Signed-off-by: Simon Glass <sjg@chromium.org>
The current EFI implementation confuses pointers and addresses. Normally
we can get away with this but in the case of sandbox it causes failures.
Despite the fact that efi_allocate_pages() returns a u64, it is actually
a pointer, not an address. Add special handling to avoid a crash when
running 'bootefi hello'.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present this option is missing a header file, a function prototype and
the qfw driver needs a header included.
Fix these problems so we can enable this option on sandbox. This will
increase the build coverage.
Signed-off-by: Simon Glass <sjg@chromium.org>
This is enabled for quite a few boards which don't create ACPI tables.
Tidy this up by dropping the option for some boards.
Signed-off-by: Simon Glass <sjg@chromium.org>
Some ARM boards are using ACPI now. It seems that U-Boot should support
this method. Add ARM to the list of archs which can generate ACPI tables.
Signed-off-by: Simon Glass <sjg@chromium.org>
Allow this to be used on any arch. Also convert to using macros so that
we can check the CONFIG option in C code.
Signed-off-by: Simon Glass <sjg@chromium.org>
These have sadly found their way to ARM now. Allow any arch to support
generating ACPI tables.
Disable this for the tools build.
Signed-off-by: Simon Glass <sjg@chromium.org>
- A number of cleanups to Python code based on running pylint
- Integrate changes so that we can run "make pylint" and compare the
results to a current baseline. Keep this as a manual check for now.
- Improve functionality of moveconfig.py
- pci: iproc: Set all 24 bits of PCI class code
There are over 200 errors in this file. Fix some of them, starting at the
beginning of the file. Future work can continue this effort.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present there is quite a bit of ad-hoc code reading from files. The
most common case is to read the file as lines. Put it in a function and
set the unicode encoding correctly.
Avoid writing back to a file when there are obviously no changes as this
speeds things up slightly.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present there is quite a bit of ad-hoc code writing to files. The
treatment of newlines is different in some of them. Put it in a function
and set the unicode encoding correctly.
Signed-off-by: Simon Glass <sjg@chromium.org>
Python 2 is not supported anymore and Python 3 has had subprocess.DEVNULL
since version 3.3 which was released in 2012. Drop the unnecessary check.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
This is a newer library and is now preferred for Python scripts. Update
the code to use it instead of optparse
Use 'args' instead of 'options' throughout, since this is the term used
in that module. Also it helps to avoid confusion with CONFIG options, a
term that is used in this file.
Signed-off-by: Simon Glass <sjg@chromium.org>
Quite a few places use double quotes. Fix this to be consistent with
other Python code in U-Boot.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
It is useful to be able to find out which boards define a particular
option, or combination of options. This is not as easy as grepping the
defconfig files since many options are implied by others.
Add a -f option to the moveconfig tool to permit this. Update the
documentation to cover this, including a better title for the doc page.
Signed-off-by: Simon Glass <sjg@chromium.org>
This doesn't work anymore, since the Kconfig update. The script has no
tests so we did not notice. Fix it.
Signed-off-by: Simon Glass <sjg@chromium.org>
* assert does not need parentheses
* add module docstring
* fix misspelled constant True
* limit lines to 100 characters
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
