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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 <[email protected]>
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Now that this is no-longer available, stop looking for it. The new module
will be used if available.
Signed-off-by: Simon Glass <[email protected]>
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Use the new library if available, while retaining backwards compatibility
with the old library for now.
Signed-off-by: Simon Glass <[email protected]>
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Now that this module has been accepted upstream we should stop using the
local U-Boot one. In preparation for this, rename it to indicate it is for
legacy use.
Signed-off-by: Simon Glass <[email protected]>
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There is no need to pass a node path separately. Instead we should use the
path for the node provided. Correct this.
Signed-off-by: Simon Glass <[email protected]>
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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 <[email protected]>
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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 <[email protected]>
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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 <[email protected]>
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Since we want to be able to change the in-memory device tree using libfdt,
use a bytearray instead of a string. This makes interfacing from Python
easier.
Signed-off-by: Simon Glass <[email protected]>
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For binman we need to support deleting properties in the device tree. This
will change the offsets of nodes after the deletion. In preparation, add
code to keep track of when the offsets are invalid, and regenerate them.
Signed-off-by: Simon Glass <[email protected]>
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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 <[email protected]>
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Some functions have the same code in the subclasses. Move these into the
superclass to avoid duplication.
Signed-off-by: Simon Glass <[email protected]>
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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 <[email protected]>
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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 <[email protected]>
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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 <[email protected]>
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In preparation for creating an Fdt base class, rename this file to indicate
it is the normal Fdt implementation.
Signed-off-by: Simon Glass <[email protected]>
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