dtoc: Update the Fdt class to record phandles

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@

dtoc: Update the Fdt class to record phandles

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>

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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

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>

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dtoc: Adjust Node to record its parent

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 Gl

dtoc: Adjust Node to record its parent

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>

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Merge git://git.denx.de/u-boot-fdt

fdt: Drop fdt_select.py

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-b

fdt: Drop fdt_select.py

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>

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fdt: Merge fdt_normal with its base class

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: Simo

fdt: Merge fdt_normal with its base class

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>

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fdt: Drop fdt_fallback library

Drop this now-unused library and associated tests.

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

fdt: Support use of the new python libfdt library

Use the new library if available, while retaining backwards compatibility
with the old library for now.

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

fdt: Support use of the new python libfdt library

Use the new library if available, while retaining backwards compatibility
with the old library for now.

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

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Merge git://git.denx.de/u-boot-dm

dtoc: Support finding the offset of a property

Add a way to find the byte offset of a property within the device tree. This
is only supported with the normal libfdt implementation since fdtget does

dtoc: Support finding the offset of a property

Add a way to find the byte offset of a property within the device tree. This
is only supported with the normal libfdt implementation since fdtget does
not provide this information.

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

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dtoc: Support packing the device tree

After any node/property deletion the device tree can be packed to remove
spare space. Add a way to perform this operation.

Note that for fdt_fallback, fdtput a

dtoc: Support packing the device tree

After any node/property deletion the device tree can be packed to remove
spare space. Add a way to perform this operation.

Note that for fdt_fallback, fdtput automatically packs the device tree after
deletion, so no action is required here.

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

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dtoc: Support deleting device tree properties

Add support for deleting a device tree property. With the fallback
implementation this uses fdtput. With libfdt it uses the API call and
updates the off

dtoc: Support deleting device tree properties

Add support for deleting a device tree property. With the fallback
implementation this uses fdtput. With libfdt it uses the API call and
updates the offsets afterwards.

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

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dtoc: Move a few more common functions into fdt.py

Some functions have the same code in the subclasses. Move these into the
superclass to avoid duplication.

Signed-off-by: Simon Glass <sjg@chromium

dtoc: Move a few more common functions into fdt.py

Some functions have the same code in the subclasses. Move these into the
superclass to avoid duplication.

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

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dtoc: Move Widen() and GetPhandle() into the base class

These functions are identical in both subclasses. Move them into the base
class.

Note: In fact there is a bug in one version, which was fixed

dtoc: Move Widen() and GetPhandle() into the base class

These functions are identical in both subclasses. Move them into the base
class.

Note: In fact there is a bug in one version, which was fixed by this patch:

https://patchwork.ozlabs.org/patch/651697/

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

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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

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>

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dtoc: Create a base class for Fdt

At present we have two separate implementations of the Fdt library, one which
uses fdtget/fdtput and one which uses libfdt (via swig).

Before adding more functiona

dtoc: Create a base class for Fdt

At present we have two separate implementations of the Fdt library, one which
uses fdtget/fdtput and one which uses libfdt (via swig).

Before adding more functionality it makes sense to create a base class for
these. This will allow common functions to be shared, and make the Fdt API
a little clearer.

Create a new fdt.py file with the base class, and adjust fdt_normal.py and
fdt_fallback.py to use it.

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

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Merge git://git.denx.de/u-boot-dm

dm: Add a more efficient libfdt library

Add a Python version of the libfdt library which contains enough features to
support the dtoc tool. This is only a very bare-bones implementation. It
requires

dm: Add a more efficient libfdt library

Add a Python version of the libfdt library which contains enough features to
support the dtoc tool. This is only a very bare-bones implementation. It
requires the 'swig' to build.

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

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