fdthelper.py (13719:74853963ddcf) fdthelper.py (14151:1c08ca99b7f2)
1# Copyright (c) 2016 ARM Limited
1# Copyright (c) 2016,2019 ARM Limited
2# All rights reserved.
3#
4# The license below extends only to copyright in the software and shall
5# not be construed as granting a license to any other intellectual
6# property including but not limited to intellectual property relating
7# to a hardware implementation of the functionality of the software
8# licensed hereunder. You may use the software subject to the license
9# terms below provided that you ensure that this notice is replicated

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82class FdtState(object):
83 """Class for maintaining state while recursively generating a flattened
84 device tree. The state tracks address, size and CPU address cell sizes, and
85 maintains a dictionary of allocated phandles."""
86
87 phandle_counter = 0
88 phandles = dict()
89
2# All rights reserved.
3#
4# The license below extends only to copyright in the software and shall
5# not be construed as granting a license to any other intellectual
6# property including but not limited to intellectual property relating
7# to a hardware implementation of the functionality of the software
8# licensed hereunder. You may use the software subject to the license
9# terms below provided that you ensure that this notice is replicated

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82class FdtState(object):
83 """Class for maintaining state while recursively generating a flattened
84 device tree. The state tracks address, size and CPU address cell sizes, and
85 maintains a dictionary of allocated phandles."""
86
87 phandle_counter = 0
88 phandles = dict()
89
90 def __init__(self, addr_cells, size_cells, cpu_cells):
90 def __init__(self, **kwargs):
91 """Instantiate values of this state. The state can only be initialized
92 once."""
93
91 """Instantiate values of this state. The state can only be initialized
92 once."""
93
94 self.addr_cells = addr_cells
95 self.size_cells = size_cells
96 self.cpu_cells = cpu_cells
94 self.addr_cells = kwargs.pop('addr_cells', 0)
95 self.size_cells = kwargs.pop('size_cells', 0)
96 self.cpu_cells = kwargs.pop('cpu_cells', 0)
97 self.interrupt_cells = kwargs.pop('interrupt_cells', 0)
97
98 def phandle(self, obj):
99 """Return a unique phandle number for a key. The key can be a SimObject
100 or any value that is castable to a string. If the phandle doesn't exist
101 a new one is created, otherwise the existing one is returned."""
102
103 if isinstance(obj, SimObject):
104 key = str(id(obj))

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137 state."""
138 return self.int_to_cells(addr, self.cpu_cells)
139
140 def sizeCells(self, size):
141 """Format an integer type according to the size_cells value of this
142 state."""
143 return self.int_to_cells(size, self.size_cells)
144
98
99 def phandle(self, obj):
100 """Return a unique phandle number for a key. The key can be a SimObject
101 or any value that is castable to a string. If the phandle doesn't exist
102 a new one is created, otherwise the existing one is returned."""
103
104 if isinstance(obj, SimObject):
105 key = str(id(obj))

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138 state."""
139 return self.int_to_cells(addr, self.cpu_cells)
140
141 def sizeCells(self, size):
142 """Format an integer type according to the size_cells value of this
143 state."""
144 return self.int_to_cells(size, self.size_cells)
145
146 def interruptCells(self, interrupt):
147 """Format an integer type according to the interrupt_cells value
148 of this state."""
149 return self.int_to_cells(interrupt, self.interrupt_cells)
150
145 def addrCellsProperty(self):
146 """Return an #address-cells property with the value of this state."""
147 return FdtPropertyWords("#address-cells", self.addr_cells)
148
149 def sizeCellsProperty(self):
150 """Return an #size-cells property with the value of this state."""
151 return FdtPropertyWords("#size-cells", self.size_cells)
152
153 def CPUCellsProperty(self):
154 """Return an #address-cells property for cpu nodes with the value
155 of this state."""
156 return FdtPropertyWords("#address-cells", self.cpu_cells)
157
151 def addrCellsProperty(self):
152 """Return an #address-cells property with the value of this state."""
153 return FdtPropertyWords("#address-cells", self.addr_cells)
154
155 def sizeCellsProperty(self):
156 """Return an #size-cells property with the value of this state."""
157 return FdtPropertyWords("#size-cells", self.size_cells)
158
159 def CPUCellsProperty(self):
160 """Return an #address-cells property for cpu nodes with the value
161 of this state."""
162 return FdtPropertyWords("#address-cells", self.cpu_cells)
163
164 def interruptCellsProperty(self):
165 """Return an #interrupt-cells property for cpu nodes with the value
166 of this state."""
167 return FdtPropertyWords("#interrupt-cells", self.interrupt_cells)
168
169
158class FdtNop(pyfdt.FdtNop):
159 """Create an empty node."""
160 pass
161
162class FdtNode(pyfdt.FdtNode):
163 def __init__(self, name, obj=None):
164 """Create a new node and immediately set the phandle property, if obj
165 is supplied"""

--- 94 unchanged lines hidden --- 		170class FdtNop(pyfdt.FdtNop):
171 """Create an empty node."""
172 pass
173
174class FdtNode(pyfdt.FdtNode):
175 def __init__(self, name, obj=None):
176 """Create a new node and immediately set the phandle property, if obj
177 is supplied"""

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