u-boot/tools/dtoc/fdt_select.py
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

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Python

#!/usr/bin/python
#
# Copyright (C) 2016 Google, Inc
# Written by Simon Glass <sjg@chromium.org>
#
# SPDX-License-Identifier: GPL-2.0+
#
# Bring in either the normal fdt library (which relies on libfdt) or the
# fallback one (which uses fdtget and is slower). Both provide the same
# interface for this file to use.
try:
import fdt_normal
have_libfdt = True
except ImportError:
have_libfdt = False
import fdt_fallback
def FdtScan(fname):
"""Returns a new Fdt object from the implementation we are using"""
if have_libfdt:
dtb = fdt_normal.FdtNormal(fname)
else:
dtb = fdt_fallback.FdtFallback(fname)
dtb.Scan()
return dtb