#!/usr/bin/python
+# SPDX-License-Identifier: GPL-2.0+
#
# Copyright (C) 2017 Google, Inc
# Written by Simon Glass <sjg@chromium.org>
#
-# SPDX-License-Identifier: GPL-2.0+
-#
"""Device tree to platform data class
self._lines = []
return lines
+ def out_header(self):
+ """Output a message indicating that this is an auto-generated file"""
+ self.out('''/*
+ * DO NOT MODIFY
+ *
+ * This file was generated by dtoc from a .dtb (device tree binary) file.
+ */
+
+''')
+
def get_phandle_argc(self, prop, node_name):
"""Check if a node contains phandles
Number of argument cells is this is a phandle, else None
"""
if prop.name in ['clocks']:
+ if not isinstance(prop.value, list):
+ prop.value = [prop.value]
val = prop.value
- if not isinstance(val, list):
- val = [val]
i = 0
max_args = 0
args = []
while i < len(val):
phandle = fdt_util.fdt32_to_cpu(val[i])
+ # If we get to the end of the list, stop. This can happen
+ # since some nodes have more phandles in the list than others,
+ # but we allocate enough space for the largest list. So those
+ # nodes with shorter lists end up with zeroes at the end.
+ if not phandle:
+ break
target = self._fdt.phandle_to_node.get(phandle)
if not target:
raise ValueError("Cannot parse '%s' in node '%s'" %
total = na + ns
if reg.type != fdt.TYPE_INT:
- raise ValueError("Node '%s' reg property is not an int")
+ raise ValueError("Node '%s' reg property is not an int" %
+ node.name)
if len(reg.value) % total:
raise ValueError("Node '%s' reg property has %d cells "
'which is not a multiple of na + ns = %d + %d)' %
continue
info = self.get_phandle_argc(prop, node.name)
if info:
- if not isinstance(prop.value, list):
- prop.value = [prop.value]
# Process the list as pairs of (phandle, id)
- value_it = iter(prop.value)
- for phandle_cell, _ in zip(value_it, value_it):
+ pos = 0
+ for args in info.args:
+ phandle_cell = prop.value[pos]
phandle = fdt_util.fdt32_to_cpu(phandle_cell)
target_node = self._fdt.phandle_to_node[phandle]
node.phandles.add(target_node)
+ pos += 1 + args
def generate_structs(self, structs):
definitions for node in self._valid_nodes. See the documentation in
README.of-plat for more information.
"""
+ self.out_header()
self.out('#include <stdbool.h>\n')
- self.out('#include <libfdt.h>\n')
+ self.out('#include <linux/libfdt.h>\n')
# Output the struct definition
for name in sorted(structs):
info = self.get_phandle_argc(prop, structs[name])
if info:
# For phandles, include a reference to the target
- self.out('\t%s%s[%d]' % (tab_to(2, 'struct phandle_2_cell'),
+ struct_name = 'struct phandle_%d_arg' % info.max_args
+ self.out('\t%s%s[%d]' % (tab_to(2, struct_name),
conv_name_to_c(prop.name),
- len(prop.value) / 2))
+ len(info.args)))
else:
ptype = TYPE_NAMES[prop.type]
self.out('\t%s%s' % (tab_to(2, ptype),
self.out('};\n')
for alias, struct_name in self._aliases.iteritems():
- self.out('#define %s%s %s%s\n'% (STRUCT_PREFIX, alias,
- STRUCT_PREFIX, struct_name))
+ if alias not in sorted(structs):
+ self.out('#define %s%s %s%s\n'% (STRUCT_PREFIX, alias,
+ STRUCT_PREFIX, struct_name))
def output_node(self, node):
"""Output the C code for a node
"""
struct_name, _ = get_compat_name(node)
var_name = conv_name_to_c(node.name)
- self.buf('static struct %s%s %s%s = {\n' %
+ self.buf('static const struct %s%s %s%s = {\n' %
(STRUCT_PREFIX, struct_name, VAL_PREFIX, var_name))
for pname, prop in node.props.items():
if pname in PROP_IGNORE_LIST or pname[0] == '#':
info = self.get_phandle_argc(prop, node.name)
if info:
# Process the list as pairs of (phandle, id)
- value_it = iter(prop.value)
- for phandle_cell, id_cell in zip(value_it, value_it):
+ pos = 0
+ for args in info.args:
+ phandle_cell = prop.value[pos]
phandle = fdt_util.fdt32_to_cpu(phandle_cell)
- id_num = fdt_util.fdt32_to_cpu(id_cell)
target_node = self._fdt.phandle_to_node[phandle]
name = conv_name_to_c(target_node.name)
- vals.append('{&%s%s, %d}' % (VAL_PREFIX, name, id_num))
+ arg_values = []
+ for i in range(args):
+ arg_values.append(str(fdt_util.fdt32_to_cpu(prop.value[pos + 1 + i])))
+ pos += 1 + args
+ vals.append('\t{&%s%s, {%s}}' % (VAL_PREFIX, name,
+ ', '.join(arg_values)))
+ for val in vals:
+ self.buf('\n\t\t%s,' % val)
else:
for val in prop.value:
vals.append(get_value(prop.type, val))
- # Put 8 values per line to avoid very long lines.
- for i in xrange(0, len(vals), 8):
- if i:
- self.buf(',\n\t\t')
- self.buf(', '.join(vals[i:i + 8]))
+ # Put 8 values per line to avoid very long lines.
+ for i in xrange(0, len(vals), 8):
+ if i:
+ self.buf(',\n\t\t')
+ self.buf(', '.join(vals[i:i + 8]))
self.buf('}')
else:
self.buf(get_value(prop.type, prop.value))
See the documentation in doc/driver-model/of-plat.txt for more
information.
"""
+ self.out_header()
self.out('#include <common.h>\n')
self.out('#include <dm.h>\n')
self.out('#include <dt-structs.h>\n')
projects / platform / kernel / u-boot.git / blobdiff