At present we always use the main devicetree for SPL/TPL as well when
setting up the state. But this it not needed if there is a real devicetree
for SPL or TPL. In fact it confuses things since we cannot distinguish
between one being provided and using the fake one.

Update the code to create the fakes only when requested. Put the mapping
in a constant so we can use it elsewhere.

Rename 'other_fname' to 'fname' while we are here since there is nothing
'other' about it.
Signed-off-by: Simon Glass <sjg@chromium.org>

A few tests declare a type when this can be inferred from the node name.
Drop these lines, since it might cause confusion.
Signed-off-by: Simon Glass <sjg@chromium.org>

This entry holds the padding between the end of of TPL binary and the
end of BSS. This region must be left empty so that the devicetree can be
appended correctly and remain accessible without interfering with BSS.
Signed-off-by: Simon Glass <sjg@chromium.org>

Allow this entry type to be placed in an image. This is the TPL binary,
without a devicetree appended.
Signed-off-by: Simon Glass <sjg@chromium.org>

Since this is an execuable we should be able insert symbol values into it.
Add support for this.

Use common code for this test and the original testSymbols. Use hex
consistently for the values and add some more comments.
Signed-off-by: Simon Glass <sjg@chromium.org>

The documentation for this entry indicates that the SPL binary is included
along with the padding. It is not, so update it to correct the error.
Signed-off-by: Simon Glass <sjg@chromium.org>

Several entries currently use an underscore in the entry-type name, but in
fact a hyphen is used. Update the docs to fix this as it might be
confusing.

Also simplify the 'filename' comment and fix the 'operation' typo.
Signed-off-by: Simon Glass <sjg@chromium.org>

Regenerate the entry documentation, which step was missed when the
files-align feature was added.

Fixes: 6eb99326

 ("binman: Support alignment of files")
Signed-off-by: Simon Glass <sjg@chromium.org>

Move the documentation to the base method as it is with other methods.
Also update it a little while we are here.
Signed-off-by: Simon Glass <sjg@chromium.org>

Extracting files to the current directory is not normally a very friendly
thing to do, but it can be warranted, e.g. in a new temporary dir. At
present binman reports an error when such an attempt is made. Fix it.
Signed-off-by: Simon Glass <sjg@chromium.org>

With Apollo Lake, SPL is placed in read-only memory. Set this new option
so that OF_PLATDATA_INST can be used.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>

These devices are not actually built in TPL but are currently active in
the TPL devicetree. For of-platdata-inst this means that we will try to
generate devices for them, which fails.

Update them to be active only in U-Boot proper.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>

We don't use these in TPL or SPL, so drop them.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>

We don't normally need this driver in TPL/SPL, so drop it for now. It can
be enabled by individual boards if needed.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>

With TPL we don't need full PCI support and it adds to code size. Instead,
a simple_bus driver is good enough to be able to read and write the PCI
config and do a little basic setup.

So at present there are two drivers in U-Boot called pci_x86. One is in
UCLASS_PCI, used in SPL and U-Boot proper. The other is in
UCLASS_SIMPLE_BUS and used only in TPL.

Add a tag to tell dtoc about this, so it knows which one to use when
generating the devices and uclasses.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>

With the standard of-platdata we must fix up driver_data manually. With
of-platadata-inst this is not necessary, since it is added to the device
by dtoc.

Update the code to handle this.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>

This enum is needed to generate build-time devices. Tell dtoc where to
find the header, to avoid compile errors in the generated code.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>

The dm.h header should come first. In fact it needs to, since otherwise
the driver model definitions are not available to dt-structs.h

Fix this, since it causes problems with OF_PLATDATA_INST.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>

Collect this together in one place, so driver model can access set it up
in a new place if needed.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>

Add a description of the new features, along with internal technical
documentation.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>

This doc has a few pieces that are out-of-date. Fix these. Also we have
started to use 'devicetree' instead of 'device tree' or 'device-tree'
since it is easier to see as a single term, so replace all ocurrences
accordingly.

Also move the caveats to the end, since this is a fairly solid part of
U-Boot now.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>

Add a warning to each of these functions so that people do not attempt to
use them outside driver model.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>

Make use of the new priv/plat data region if enabled. This is implemented
as a simple offset from the position set up by dtoc to the new position.

So long as all access goes through dm_priv_to_rw() this is safe.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>

Collect this together in one place, so driver model can access set it up
in a new place if needed.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>

At present the device priv/data data allocated by dtoc is stored in the
data section along with other variables. On some platforms it is better
to allocate space for it separately, e.g. if SPL is running from read-only
memory.

Create a new space with the same size as that allocated by dtoc, ready for
use.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>

When of-platdata-inst is active, use the flags in the new udevice_rt
table, dropping them from the main struct udevice. This ensures that the
latter is not updated at runtime.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>

At present when driver model needs to change a device it simply updates
the struct udevice structure. But with of-platdata-inst most of the fields
are not modified at runtime. In fact, typically only the flags need to
change.

For systems running SPL from read-only memory it is convenient to separate
out the runtime information, so that the devices don't need to be copied
before being used.

Create a new udevice_rt table, similar to the existing driver_rt. For now
it just holds the flags, although they are not used in this patch.

Add a new Kconfig for the driver_rt data, since this is not needed when
of-platdata-inst is used.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>

Some systems (e.g. x86 APL) run SPL from read-only memory. The device
instances created by dtoc are therefore not writeable. To make things work
we would need to copy the devices to read/write memory.

To avoid this, add an option to use a separate runtime struct for devices,
just as is done for drivers. This can be used to hold information that
changes at runtime, avoiding the need for a copy.

Also add a Kconfig option for read-only SPL, which selects this feature.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>

Add this new board to the test plans. Travis-CI is left out, since it is
being removed soon due to lack of capacity.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>

Run the tests on this build too, to prevent regressions.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>

Move sandbox_spl over to use OF_PLATDATA_INST. Create a new board to
test the case when this is not enabled, since we will be keeping that
code around for several months and want to avoid regressions.

Skip the dm_test_of_plat_dev() test since driver info is not available
for OF_PLATDATA_INST.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>

With recent changes this can be supported again. Add it back.

This reverts commit d85f2c4f

.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>

At present the i2c emulators require access to the devicetree, which is
not possible (by design) with of-platdata.

Add a way for drivers to record the of-platdata index of their emulator,
so that we can still find the emulator.

This allows i2c emulation to work with of-platdata.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>

The test framework reinits driver model tests before running each test.
Since malloc_simple does not support free(), this eventually runs out of
memory.

Fix it for now by increasing the space to 32KB.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

This function finds a device by its driver_info index. With
of-platdata-inst we do not use driver_info, but instead instantiate
udevice records at build-time.

However the semantics of using the function are the same in each case:
the caller provides an index and gets back a device.

So rename the function to device_get_by_ofplat_idx(), so that it can be
used for both situations. The caller does not really need to worry about
the details.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>

At present the structs used by these drivers are declared in the C files
and so are not accessible to dtoc. Move them to header files, as required.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>

At present this function is included in the build but with of-platdata it
only services to produce a confusing link error complaining about a call
to dev_read_u32_default().

Drop it so that any call to uclass_find_device_by_phandle() is flagged as
an error, making it easier to see what is going on.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>

This function is now only used in a test. Drop it. Also drop
DM_DRVINFO_GET() which was the only purpose for having the function.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>

Create a version of this driver for sandbox so that it can use the
of-platdata struct.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>

We need to allow SoCs to create their own drivers for this so that they
can use their own of-platdata structs. To minimise code duplication,
export the driver operations and the ofdata_to_plat() setup function.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>