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dtoc: Update the Fdt class to record phandles

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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>
This commit is contained in:
Simon Glass 2017-08-29 14:15:52 -06:00
parent 5ec741fd84
commit 09264e0433
1 changed files with 5 additions and 0 deletions
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5
tools/dtoc/fdt.py
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@ -212,6 +212,10 @@ class Node:
searching into subnodes so that the entire tree is built.
"""
self.props = self._fdt.GetProps(self)
phandle = self.props.get('phandle')
if phandle:
val = fdt_util.fdt32_to_cpu(phandle.value)
self._fdt.phandle_to_node[val] = self
offset = libfdt.fdt_first_subnode(self._fdt.GetFdt(), self.Offset())
while offset >= 0:
@ -263,6 +267,7 @@ class Fdt:
def __init__(self, fname):
self._fname = fname
self._cached_offsets = False
self.phandle_to_node = {}
if self._fname:
self._fname = fdt_util.EnsureCompiled(self._fname)