dtoc: Rename fdt.py to fdt_normal.py

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>

1 files changed, 0 insertions, 180 deletions

diff --git a/tools/dtoc/fdt.py b/tools/dtoc/fdt.py
deleted file mode 100644
index 1d913a925e..0000000000
--- a/tools/dtoc/fdt.py
+++ /dev/null
@@ -1,180 +0,0 @@
-#!/usr/bin/python
-#
-# Copyright (C) 2016 Google, Inc
-# Written by Simon Glass <sjg@chromium.org>
-#
-# SPDX-License-Identifier:      GPL-2.0+
-#
-
-import fdt_util
-import libfdt
-import sys
-
-# This deals with a device tree, presenting it as a list of Node and Prop
-# objects, representing nodes and properties, respectively.
-#
-# This implementation uses a libfdt Python library to access the device tree,
-# so it is fairly efficient.
-
-class Prop:
-    """A device tree property
-
-    Properties:
-        name: Property name (as per the device tree)
-        value: Property value as a string of bytes, or a list of strings of
-            bytes
-        type: Value type
-    """
-    def __init__(self, name, bytes):
-        self.name = name
-        self.value = None
-        if not bytes:
-            self.type = fdt_util.TYPE_BOOL
-            self.value = True
-            return
-        self.type, self.value = fdt_util.BytesToValue(bytes)
-
-    def GetPhandle(self):
-        """Get a (single) phandle value from a property
-
-        Gets the phandle valuie from a property and returns it as an integer
-        """
-        return fdt_util.fdt32_to_cpu(self.value[:4])
-
-    def Widen(self, newprop):
-        """Figure out which property type is more general
-
-        Given a current property and a new property, this function returns the
-        one that is less specific as to type. The less specific property will
-        be ble to represent the data in the more specific property. This is
-        used for things like:
-
-            node1 {
-                compatible = "fred";
-                value = <1>;
-            };
-            node1 {
-                compatible = "fred";
-                value = <1 2>;
-            };
-
-        He we want to use an int array for 'value'. The first property
-        suggests that a single int is enough, but the second one shows that
-        it is not. Calling this function with these two propertes would
-        update the current property to be like the second, since it is less
-        specific.
-        """
-        if newprop.type < self.type:
-            self.type = newprop.type
-
-        if type(newprop.value) == list and type(self.value) != list:
-            self.value = [self.value]
-
-        if type(self.value) == list and len(newprop.value) > len(self.value):
-            val = fdt_util.GetEmpty(self.type)
-            while len(self.value) < len(newprop.value):
-                self.value.append(val)
-
-
-class Node:
-    """A device tree node
-
-    Properties:
-        offset: Integer offset in the device tree
-        name: Device tree node tname
-        path: Full path to node, along with the node name itself
-        _fdt: Device tree object
-        subnodes: A list of subnodes for this node, each a Node object
-        props: A dict of properties for this node, each a Prop object.
-            Keyed by property name
-    """
-    def __init__(self, fdt, offset, name, path):
-        self.offset = offset
-        self.name = name
-        self.path = path
-        self._fdt = fdt
-        self.subnodes = []
-        self.props = {}
-
-    def Scan(self):
-        """Scan a node's properties and subnodes
-
-        This fills in the props and subnodes properties, recursively
-        searching into subnodes so that the entire tree is built.
-        """
-        self.props = self._fdt.GetProps(self.path)
-
-        offset = libfdt.fdt_first_subnode(self._fdt.GetFdt(), self.offset)
-        while offset >= 0:
-            sep = '' if self.path[-1] == '/' else '/'
-            name = libfdt.Name(self._fdt.GetFdt(), offset)
-            path = self.path + sep + name
-            node = Node(self._fdt, offset, name, path)
-            self.subnodes.append(node)
-
-            node.Scan()
-            offset = libfdt.fdt_next_subnode(self._fdt.GetFdt(), offset)
-
-
-class Fdt:
-    """Provides simple access to a flat device tree blob.
-
-    Properties:
-      fname: Filename of fdt
-      _root: Root of device tree (a Node object)
-    """
-
-    def __init__(self, fname):
-        self.fname = fname
-        with open(fname) as fd:
-            self._fdt = fd.read()
-
-    def GetFdt(self):
-        """Get the contents of the FDT
-
-        Returns:
-            The FDT contents as a string of bytes
-        """
-        return self._fdt
-
-    def Scan(self):
-        """Scan a device tree, building up a tree of Node objects
-
-        This fills in the self._root property
-        """
-        self._root = Node(self, 0, '/', '/')
-        self._root.Scan()
-
-    def GetRoot(self):
-        """Get the root Node of the device tree
-
-        Returns:
-            The root Node object
-        """
-        return self._root
-
-    def GetProps(self, node):
-        """Get all properties from a node.
-
-        Args:
-            node: Full path to node name to look in.
-
-        Returns:
-            A dictionary containing all the properties, indexed by node name.
-            The entries are Prop objects.
-
-        Raises:
-            ValueError: if the node does not exist.
-        """
-        offset = libfdt.fdt_path_offset(self._fdt, node)
-        if offset < 0:
-            libfdt.Raise(offset)
-        props_dict = {}
-        poffset = libfdt.fdt_first_property_offset(self._fdt, offset)
-        while poffset >= 0:
-            dprop, plen = libfdt.fdt_get_property_by_offset(self._fdt, poffset)
-            prop = Prop(libfdt.String(self._fdt, dprop.nameoff), libfdt.Data(dprop))
-            props_dict[prop.name] = prop
-
-            poffset = libfdt.fdt_next_property_offset(self._fdt, poffset)
-        return props_dict