Commit graph

11 commits

Author SHA1 Message Date
Paul Burton
4ae6549f8e dtoc: Use items() to iterate over dictionaries in python 3.x
In python 3.x the iteritems() method has been removed from dictionaries,
and the items() method does effectively the same thing. On python 2.x
using items() is a little less efficient since it involves copying data,
but as speed isn't a concern in the affected code switch to using
items() anyway for simplicity.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Acked-by: Simon Glass <sjg@chromium.org>
2016-10-09 09:30:32 -06:00
Simon Glass
0734b70c9c dtoc: Fix bug in GetProp()
This does not actually call fdtget correctly when requesting a particular
type. Fix it.

Signed-off-by: Simon Glass <sjg@chromium.org>
2016-10-09 09:30:32 -06:00
Simon Glass
2a70d897ed 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>
2016-09-18 21:04:39 -06:00
Simon Glass
6b93c55f59 dtoc: Drop the convert_dash parameter to GetProps()
This is not used anywhere in dtoc, so drop it.

Signed-off-by: Simon Glass <sjg@chromium.org>
2016-09-18 21:04:39 -06:00
Simon Glass
355c67c35a dtoc: Allow the device tree to be compiled from source
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 <sjg@chromium.org>
2016-09-18 21:04:39 -06:00
Simon Glass
f7a2aeeeb8 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>
2016-09-18 21:04:38 -06:00
Simon Glass
c322a850af 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>
2016-09-18 21:04:38 -06:00
Simon Glass
bc1dea3656 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>
2016-09-18 21:04:38 -06:00
Simon Glass
a06a34b203 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>
2016-09-18 21:04:38 -06:00
Simon Glass
d6a33918fb dtoc: Correct the type widening code in fdt_fallback
This code does not match the fdt version in fdt.py. When dtoc is unable to
use the Python libfdt library, it uses the fallback version, which does not
widen arrays correctly.

Fix this to avoid a warning 'excess elements in array initialize' in
dt-platdata.c which happens on some platforms.

Reported-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Tom Rini <trini@konsulko.com>
2016-07-25 12:05:55 -04:00
Simon Glass
ec564b47da dm: Add a library to provide simple device-tree access
This Python library provides a way to access the contents of the device
tree. It uses fdtget, so is inefficient for larger device tree files.

Signed-off-by: Simon Glass <sjg@chromium.org>
2016-07-14 20:40:24 -06:00