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path: root/tools/dtoc/fdt.py
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2018-05-07SPDX: Convert all of our single license tags to Linux Kernel styleTom Rini
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>
2017-09-15dtoc: Update the Fdt class to record phandlesSimon Glass
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> Tested-by: Kever Yang <kever.yang@rock-chips.com>
2017-09-15dtoc: Add a 64-bit type and a way to convert cells into 64 bitsSimon Glass
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>
2017-09-15dtoc: Adjust Node to record its parentSimon Glass
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> Tested-by: Kever Yang <kever.yang@rock-chips.com>
2017-06-02fdt: Drop fdt_select.pySimon Glass
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>
2017-06-02fdt: Merge fdt_normal with its base classSimon Glass
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>
2017-06-02fdt: Drop fdt_fallback librarySimon Glass
Drop this now-unused library and associated tests. Signed-off-by: Simon Glass <sjg@chromium.org>
2017-06-02fdt: Support use of the new python libfdt librarySimon Glass
Use the new library if available, while retaining backwards compatibility with the old library for now. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-09-18dtoc: Support finding the offset of a propertySimon Glass
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>
2016-09-18dtoc: Support packing the device treeSimon Glass
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>
2016-09-18dtoc: Support deleting device tree propertiesSimon Glass
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>
2016-09-18dtoc: Move a few more common functions into fdt.pySimon Glass
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>
2016-09-18dtoc: Move Widen() and GetPhandle() into the base classSimon Glass
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>
2016-09-18dtoc: Move BytesToValue() and GetEmpty() into PropBaseSimon Glass
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>
2016-09-18dtoc: Create a base class for FdtSimon Glass
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>
2016-09-18dtoc: Rename fdt.py to fdt_normal.pySimon Glass
In preparation for creating an Fdt base class, rename this file to indicate it is the normal Fdt implementation. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-07-14dm: Add a more efficient libfdt librarySimon Glass
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>