from dtoc import fdt
from dtoc import fdt_util
+from dtoc import src_scan
+from dtoc.src_scan import conv_name_to_c
# When we see these properties we ignore them - i.e. do not create a structure
# member
STRUCT_PREFIX = 'dtd_'
VAL_PREFIX = 'dtv_'
+# Properties which are considered to be phandles
+# key: property name
+# value: name of associated #cells property in the target node
+#
+# New phandle properties must be added here; otherwise they will come through as
+# simple integers and finding devices by phandle will not work.
+# Any property that ends with one of these (e.g. 'cd-gpios') will be considered
+# a phandle property.
+PHANDLE_PROPS = {
+ 'clocks': '#clock-cells',
+ 'gpios': '#gpio-cells',
+ 'sandbox,emul': '#emul-cells',
+ }
+
class Ftype(IntEnum):
SOURCE, HEADER = range(2)
# This holds information about each type of output file dtoc can create
# type: Type of file (Ftype)
-# fname: Filename excluding directory, e.g. 'dt-platdata.c'
-OutputFile = collections.namedtuple('OutputFile', ['ftype', 'fname'])
+# fname: Filename excluding directory, e.g. 'dt-plat.c'
+# hdr_comment: Comment explaining the purpose of the file
+OutputFile = collections.namedtuple('OutputFile',
+ ['ftype', 'fname', 'method', 'hdr_comment'])
# This holds information about a property which includes phandles.
#
PhandleLink = collections.namedtuple('PhandleLink', ['var_node', 'dev_name'])
-class Driver:
- """Information about a driver in U-Boot
-
- Attributes:
- name: Name of driver. For U_BOOT_DRIVER(x) this is 'x'
- """
- def __init__(self, name):
- self.name = name
-
- def __eq__(self, other):
- return self.name == other.name
-
- def __repr__(self):
- return "Driver(name='%s')" % self.name
-
-
-def conv_name_to_c(name):
- """Convert a device-tree name to a C identifier
-
- This uses multiple replace() calls instead of re.sub() since it is faster
- (400ms for 1m calls versus 1000ms for the 're' version).
-
- Args:
- name (str): Name to convert
- Return:
- str: String containing the C version of this name
- """
- new = name.replace('@', '_at_')
- new = new.replace('-', '_')
- new = new.replace(',', '_')
- new = new.replace('.', '_')
- return new
-
def tab_to(num_tabs, line):
"""Append tabs to a line of text to reach a tab stop.
val = '%#x' % value
return val
-def get_compat_name(node):
- """Get the node's list of compatible string as a C identifiers
-
- Args:
- node (fdt.Node): Node object to check
- Return:
- list of str: List of C identifiers for all the compatible strings
- """
- compat = node.props['compatible'].value
- if not isinstance(compat, list):
- compat = [compat]
- return [conv_name_to_c(c) for c in compat]
-
class DtbPlatdata():
"""Provide a means to convert device tree binary data to platform data
code is not affordable.
Properties:
+ _scan: Scan object, for scanning and reporting on useful information
+ from the U-Boot source code
_fdt: Fdt object, referencing the device tree
_dtb_fname: Filename of the input device tree binary file
- _valid_nodes: A list of Node object with compatible strings. The list
- is ordered by conv_name_to_c(node.name)
+ _valid_nodes_unsorted: A list of Node object with compatible strings,
+ ordered by devicetree node order
+ _valid_nodes: A list of Node object with compatible strings, ordered by
+ conv_name_to_c(node.name)
_include_disabled: true to include nodes marked status = "disabled"
_outfile: The current output file (sys.stdout or a real file)
- _warning_disabled: true to disable warnings about driver names not found
_lines: Stashed list of output lines for outputting in the future
- _drivers: Dict of valid driver names found in drivers/
- key: Driver name
- value: Driver for that driver
- _driver_aliases: Dict that holds aliases for driver names
- key: Driver alias declared with
- U_BOOT_DRIVER_ALIAS(driver_alias, driver_name)
- value: Driver name declared with U_BOOT_DRIVER(driver_name)
- _drivers_additional: List of additional drivers to use during scanning
_dirname: Directory to hold output files, or None for none (all files
go to stdout)
+ _struct_data (dict): OrderedDict of dtplat structures to output
+ key (str): Node name, as a C identifier
+ value: dict containing structure fields:
+ key (str): Field name
+ value: Prop object with field information
+ _basedir (str): Base directory of source tree
+ _valid_uclasses (list of src_scan.Uclass): List of uclasses needed for
+ the selected devices (see _valid_node), in alphabetical order
+ _instantiate: Instantiate devices so they don't need to be bound at
+ run-time
"""
- def __init__(self, dtb_fname, include_disabled, warning_disabled,
- drivers_additional=None):
+ def __init__(self, scan, dtb_fname, include_disabled, instantiate=False):
+ self._scan = scan
self._fdt = None
self._dtb_fname = dtb_fname
self._valid_nodes = None
+ self._valid_nodes_unsorted = None
self._include_disabled = include_disabled
self._outfile = None
- self._warning_disabled = warning_disabled
self._lines = []
- self._drivers = {}
- self._driver_aliases = {}
- self._drivers_additional = drivers_additional or []
self._dirnames = [None] * len(Ftype)
-
- def get_normalized_compat_name(self, node):
- """Get a node's normalized compat name
-
- Returns a valid driver name by retrieving node's list of compatible
- string as a C identifier and performing a check against _drivers
- and a lookup in driver_aliases printing a warning in case of failure.
-
- Args:
- node (Node): Node object to check
- Return:
- Tuple:
- Driver name associated with the first compatible string
- List of C identifiers for all the other compatible strings
- (possibly empty)
- In case of no match found, the return will be the same as
- get_compat_name()
- """
- compat_list_c = get_compat_name(node)
-
- for compat_c in compat_list_c:
- if not compat_c in self._drivers.keys():
- compat_c = self._driver_aliases.get(compat_c)
- if not compat_c:
- continue
-
- aliases_c = compat_list_c
- if compat_c in aliases_c:
- aliases_c.remove(compat_c)
- return compat_c, aliases_c
-
- if not self._warning_disabled:
- print('WARNING: the driver %s was not found in the driver list'
- % (compat_list_c[0]))
-
- return compat_list_c[0], compat_list_c[1:]
+ self._struct_data = collections.OrderedDict()
+ self._basedir = None
+ self._valid_uclasses = None
+ self._instantiate = instantiate
def setup_output_dirs(self, output_dirs):
"""Set up the output directories
self._lines = []
return lines
- def out_header(self):
- """Output a message indicating that this is an auto-generated file"""
+ def out_header(self, outfile):
+ """Output a message indicating that this is an auto-generated file
+
+ Args:
+ outfile: OutputFile describing the file being generated
+ """
self.out('''/*
* DO NOT MODIFY
*
- * This file was generated by dtoc from a .dtb (device tree binary) file.
+ * %s.
+ * This was generated by dtoc from a .dtb (device tree binary) file.
*/
-''')
+''' % outfile.hdr_comment)
def get_phandle_argc(self, prop, node_name):
"""Check if a node contains phandles
ValueError: if the phandle cannot be parsed or the required property
is not present
"""
- if prop.name in ['clocks', 'cd-gpios']:
+ cells_prop = None
+ for name, cprop in PHANDLE_PROPS.items():
+ if prop.name.endswith(name):
+ cells_prop = cprop
+ if cells_prop:
if not isinstance(prop.value, list):
prop.value = [prop.value]
val = prop.value
if not target:
raise ValueError("Cannot parse '%s' in node '%s'" %
(prop.name, node_name))
- cells = None
- for prop_name in ['#clock-cells', '#gpio-cells']:
- cells = target.props.get(prop_name)
- if cells:
- break
+ cells = target.props.get(cells_prop)
if not cells:
raise ValueError("Node '%s' has no cells property" %
- (target.name))
+ target.name)
num_args = fdt_util.fdt32_to_cpu(cells.value)
max_args = max(max_args, num_args)
args.append(num_args)
return PhandleInfo(max_args, args)
return None
- def scan_driver(self, fname):
- """Scan a driver file to build a list of driver names and aliases
-
- This procedure will populate self._drivers and self._driver_aliases
-
- Args
- fname: Driver filename to scan
- """
- with open(fname, encoding='utf-8') as inf:
- try:
- buff = inf.read()
- except UnicodeDecodeError:
- # This seems to happen on older Python versions
- print("Skipping file '%s' due to unicode error" % fname)
- return
-
- # The following re will search for driver names declared as
- # U_BOOT_DRIVER(driver_name)
- drivers = re.findall(r'U_BOOT_DRIVER\((.*)\)', buff)
-
- for driver in drivers:
- self._drivers[driver] = Driver(driver)
-
- # The following re will search for driver aliases declared as
- # U_BOOT_DRIVER_ALIAS(alias, driver_name)
- driver_aliases = re.findall(
- r'U_BOOT_DRIVER_ALIAS\(\s*(\w+)\s*,\s*(\w+)\s*\)',
- buff)
-
- for alias in driver_aliases: # pragma: no cover
- if len(alias) != 2:
- continue
- self._driver_aliases[alias[1]] = alias[0]
-
- def scan_drivers(self):
- """Scan the driver folders to build a list of driver names and aliases
-
- This procedure will populate self._drivers and self._driver_aliases
-
- """
- basedir = sys.argv[0].replace('tools/dtoc/dtoc', '')
- if basedir == '':
- basedir = './'
- for (dirpath, _, filenames) in os.walk(basedir):
- for fname in filenames:
- if not fname.endswith('.c'):
- continue
- self.scan_driver(dirpath + '/' + fname)
-
- for fname in self._drivers_additional:
- if not isinstance(fname, str) or len(fname) == 0:
- continue
- if fname[0] == '/':
- self.scan_driver(fname)
- else:
- self.scan_driver(basedir + '/' + fname)
-
def scan_dtb(self):
"""Scan the device tree to obtain a tree of nodes and properties
"""
self._fdt = fdt.FdtScan(self._dtb_fname)
- def scan_node(self, root, valid_nodes):
+ def scan_node(self, node, valid_nodes):
"""Scan a node and subnodes to build a tree of node and phandle info
- This adds each node to self._valid_nodes.
+ This adds each subnode to self._valid_nodes if it is enabled and has a
+ compatible string.
Args:
- root (Node): Root node for scan
+ node (Node): Node for scan for subnodes
valid_nodes (list of Node): List of Node objects to add to
"""
- for node in root.subnodes:
- if 'compatible' in node.props:
- status = node.props.get('status')
+ for subnode in node.subnodes:
+ if 'compatible' in subnode.props:
+ status = subnode.props.get('status')
if (not self._include_disabled and not status or
status.value != 'disabled'):
- valid_nodes.append(node)
+ valid_nodes.append(subnode)
# recurse to handle any subnodes
- self.scan_node(node, valid_nodes)
+ self.scan_node(subnode, valid_nodes)
- def scan_tree(self):
+ def scan_tree(self, add_root):
"""Scan the device tree for useful information
This fills in the following properties:
- _valid_nodes: A list of nodes we wish to consider include in the
- platform data
+ _valid_nodes_unsorted: A list of nodes we wish to consider include
+ in the platform data (in devicetree node order)
+ _valid_nodes: Sorted version of _valid_nodes_unsorted
+
+ Args:
+ add_root: True to add the root node also (which wouldn't normally
+ be added as it may not have a compatible string)
"""
+ root = self._fdt.GetRoot()
valid_nodes = []
- self.scan_node(self._fdt.GetRoot(), valid_nodes)
+ if add_root:
+ valid_nodes.append(root)
+ self.scan_node(root, valid_nodes)
+ self._valid_nodes_unsorted = valid_nodes
self._valid_nodes = sorted(valid_nodes,
key=lambda x: conv_name_to_c(x.name))
+
+ def prepare_nodes(self):
+ """Add extra properties to the nodes we are using
+
+ The following properties are added for use by dtoc:
+ idx: Index number of this node (0=first, etc.)
+ struct_name: Name of the struct dtd used by this node
+ var_name: C name for this node
+ child_devs: List of child devices for this node, each a None
+ child_refs: Dict of references for each child:
+ key: Position in child list (-1=head, 0=first, 1=second, ...
+ n-1=last, n=head)
+ seq: Sequence number of the device (unique within its uclass), or
+ -1 not not known yet
+ dev_ref: Reference to this device, e.g. 'DM_DEVICE_REF(serial)'
+ driver: Driver record for this node, or None if not known
+ uclass: Uclass record for this node, or None if not known
+ uclass_seq: Position of this device within the uclass list (0=first,
+ n-1=last)
+ parent_seq: Position of this device within it siblings (0=first,
+ n-1=last)
+ parent_driver: Driver record of the node's parent, or None if none.
+ We don't use node.parent.driver since node.parent may not be in
+ the list of valid nodes
+ """
for idx, node in enumerate(self._valid_nodes):
node.idx = idx
+ node.struct_name, _ = self._scan.get_normalized_compat_name(node)
+ node.var_name = conv_name_to_c(node.name)
+ node.child_devs = []
+ node.child_refs = {}
+ node.seq = -1
+ node.dev_ref = None
+ node.driver = None
+ node.uclass = None
+ node.uclass_seq = None
+ node.parent_seq = None
+ node.parent_driver = None
@staticmethod
def get_num_cells(node):
Once the widest property is determined, all other properties are
updated to match that width.
- Returns:
- dict of dict: dict containing structures:
- key (str): Node name, as a C identifier
- value: dict containing structure fields:
- key (str): Field name
- value: Prop object with field information
+ The results are written to self._struct_data
"""
- structs = collections.OrderedDict()
+ structs = self._struct_data
for node in self._valid_nodes:
- node_name, _ = self.get_normalized_compat_name(node)
fields = {}
# Get a list of all the valid properties in this node.
if name not in PROP_IGNORE_LIST and name[0] != '#':
fields[name] = copy.deepcopy(prop)
- # If we've seen this node_name before, update the existing struct.
- if node_name in structs:
- struct = structs[node_name]
+ # If we've seen this struct_name before, update the existing struct
+ if node.struct_name in structs:
+ struct = structs[node.struct_name]
for name, prop in fields.items():
oldprop = struct.get(name)
if oldprop:
# Otherwise store this as a new struct.
else:
- structs[node_name] = fields
+ structs[node.struct_name] = fields
for node in self._valid_nodes:
- node_name, _ = self.get_normalized_compat_name(node)
- struct = structs[node_name]
+ struct = structs[node.struct_name]
for name, prop in node.props.items():
if name not in PROP_IGNORE_LIST and name[0] != '#':
prop.Widen(struct[name])
- return structs
-
def scan_phandles(self):
"""Figure out what phandles each node uses
pos += 1 + args
- def generate_structs(self, structs):
+ def generate_structs(self):
"""Generate struct defintions for the platform data
This writes out the body of a header file consisting of structure
definitions for node in self._valid_nodes. See the documentation in
doc/driver-model/of-plat.rst for more information.
-
- Args:
- structs (dict): dict containing structures:
- key (str): Node name, as a C identifier
- value: dict containing structure fields:
- key (str): Field name
- value: Prop object with field information
-
"""
- self.out_header()
+ structs = self._struct_data
self.out('#include <stdbool.h>\n')
self.out('#include <linux/libfdt.h>\n')
self.buf(', '.join(vals[i:i + 8]))
self.buf('}')
- def _declare_device(self, var_name, struct_name, node_parent):
+ def _declare_device(self, node):
"""Add a device declaration to the output
This declares a U_BOOT_DRVINFO() for the device being processed
Args:
- var_name (str): C name for the node
- struct_name (str): Name for the dt struct associated with the node
- node_parent (Node): Parent of the node (or None if none)
+ node: Node to process
"""
- self.buf('U_BOOT_DRVINFO(%s) = {\n' % var_name)
- self.buf('\t.name\t\t= "%s",\n' % struct_name)
- self.buf('\t.plat\t= &%s%s,\n' % (VAL_PREFIX, var_name))
- self.buf('\t.plat_size\t= sizeof(%s%s),\n' % (VAL_PREFIX, var_name))
+ self.buf('U_BOOT_DRVINFO(%s) = {\n' % node.var_name)
+ self.buf('\t.name\t\t= "%s",\n' % node.struct_name)
+ self.buf('\t.plat\t= &%s%s,\n' % (VAL_PREFIX, node.var_name))
+ self.buf('\t.plat_size\t= sizeof(%s%s),\n' %
+ (VAL_PREFIX, node.var_name))
idx = -1
- if node_parent and node_parent in self._valid_nodes:
- idx = node_parent.idx
+ if node.parent and node.parent in self._valid_nodes:
+ idx = node.parent.idx
self.buf('\t.parent_idx\t= %d,\n' % idx)
self.buf('};\n')
self.buf('\n')
self.buf(get_value(prop.type, prop.value))
self.buf(',\n')
- def _output_values(self, var_name, struct_name, node):
+ def _output_values(self, node):
"""Output the definition of a device's struct values
Args:
- var_name (str): C name for the node
- struct_name (str): Name for the dt struct associated with the node
- node (Node): Node being output
+ node (Node): Node to output
"""
self.buf('static struct %s%s %s%s = {\n' %
- (STRUCT_PREFIX, struct_name, VAL_PREFIX, var_name))
+ (STRUCT_PREFIX, node.struct_name, VAL_PREFIX, node.var_name))
for pname in sorted(node.props):
self._output_prop(node, node.props[pname])
self.buf('};\n')
- def output_node(self, node):
+ def read_aliases(self):
+ """Read the aliases and attach the information to self._alias
+
+ Raises:
+ ValueError: The alias path is not found
+ """
+ alias_node = self._fdt.GetNode('/aliases')
+ if not alias_node:
+ return
+ re_num = re.compile('(^[a-z0-9-]+[a-z]+)([0-9]+)$')
+ for prop in alias_node.props.values():
+ m_alias = re_num.match(prop.name)
+ if not m_alias:
+ raise ValueError("Cannot decode alias '%s'" % prop.name)
+ name, num = m_alias.groups()
+ node = self._fdt.GetNode(prop.value)
+ result = self._scan.add_uclass_alias(name, num, node)
+ if result is None:
+ raise ValueError("Alias '%s' path '%s' not found" %
+ (prop.name, prop.value))
+ elif result is False:
+ print("Could not find uclass for alias '%s'" % prop.name)
+
+ def generate_decl(self):
+ nodes_to_output = list(self._valid_nodes)
+
+ self.buf('#include <dm/device-internal.h>\n')
+ self.buf('#include <dm/uclass-internal.h>\n')
+ self.buf('\n')
+ self.buf(
+ '/* driver declarations - these allow DM_DRIVER_GET() to be used */\n')
+ for node in nodes_to_output:
+ self.buf('DM_DRIVER_DECL(%s);\n' % node.struct_name);
+ self.buf('\n')
+
+ if self._instantiate:
+ self.buf(
+ '/* device declarations - these allow DM_DEVICE_REF() to be used */\n')
+ for node in nodes_to_output:
+ self.buf('DM_DEVICE_DECL(%s);\n' % node.var_name)
+ self.buf('\n')
+
+ uclass_list = self._valid_uclasses
+
+ self.buf(
+ '/* uclass driver declarations - needed for DM_UCLASS_DRIVER_REF() */\n')
+ for uclass in uclass_list:
+ self.buf('DM_UCLASS_DRIVER_DECL(%s);\n' % uclass.name)
+
+ if self._instantiate:
+ self.buf('\n')
+ self.buf('/* uclass declarations - needed for DM_UCLASS_REF() */\n')
+ for uclass in uclass_list:
+ self.buf('DM_UCLASS_DECL(%s);\n' % uclass.name)
+ self.out(''.join(self.get_buf()))
+
+ def assign_seqs(self):
+ """Assign a sequence number to each node"""
+ for node in self._valid_nodes_unsorted:
+ seq = self._scan.assign_seq(node)
+ if seq is not None:
+ node.seq = seq
+
+ def process_nodes(self, need_drivers):
+ nodes_to_output = list(self._valid_nodes)
+
+ # Figure out which drivers we actually use
+ self._scan.mark_used(nodes_to_output)
+
+ for node in nodes_to_output:
+ node.dev_ref = 'DM_DEVICE_REF(%s)' % node.var_name
+ driver = self._scan.get_driver(node.struct_name)
+ if not driver:
+ if not need_drivers:
+ continue
+ raise ValueError("Cannot parse/find driver for '%s'" %
+ node.struct_name)
+ node.driver = driver
+ uclass = self._scan._uclass.get(driver.uclass_id)
+ if not uclass:
+ raise ValueError("Cannot parse/find uclass '%s' for driver '%s'" %
+ (driver.uclass_id, node.struct_name))
+ node.uclass = uclass
+ node.uclass_seq = len(node.uclass.devs)
+ node.uclass.devs.append(node)
+ uclass.node_refs[node.uclass_seq] = \
+ '&%s->uclass_node' % node.dev_ref
+
+ parent_driver = None
+ if node.parent in self._valid_nodes:
+ parent_driver = self._scan.get_driver(node.parent.struct_name)
+ if not parent_driver:
+ if not need_drivers:
+ continue
+ raise ValueError(
+ "Cannot parse/find parent driver '%s' for '%s'" %
+ (node.parent.struct_name, node.struct_name))
+ node.parent_seq = len(node.parent.child_devs)
+ node.parent.child_devs.append(node)
+ node.parent.child_refs[node.parent_seq] = \
+ '&%s->sibling_node' % node.dev_ref
+ node.parent_driver = parent_driver
+
+ for node in nodes_to_output:
+ ref = '&%s->child_head' % node.dev_ref
+ node.child_refs[-1] = ref
+ node.child_refs[len(node.child_devs)] = ref
+
+ uclass_set = set()
+ for driver in self._scan._drivers.values():
+ if driver.used and driver.uclass:
+ uclass_set.add(driver.uclass)
+ self._valid_uclasses = sorted(list(uclass_set),
+ key=lambda uc: uc.uclass_id)
+
+ for seq, uclass in enumerate(uclass_set):
+ ref = '&DM_UCLASS_REF(%s)->dev_head' % uclass.name
+ uclass.node_refs[-1] = ref
+ uclass.node_refs[len(uclass.devs)] = ref
+
+ def output_node_plat(self, node):
"""Output the C code for a node
Args:
node (fdt.Node): node to output
"""
- struct_name, _ = self.get_normalized_compat_name(node)
- var_name = conv_name_to_c(node.name)
- self.buf('/* Node %s index %d */\n' % (node.path, node.idx))
+ driver = node.driver
+ parent_driver = node.parent_driver
+
+ line1 = 'Node %s index %d' % (node.path, node.idx)
+ if driver:
+ self.buf('/*\n')
+ self.buf(' * %s\n' % line1)
+ self.buf(' * driver %s parent %s\n' % (driver.name,
+ parent_driver.name if parent_driver else 'None'))
+ self.buf(' */\n')
+ else:
+ self.buf('/* %s */\n' % line1)
- self._output_values(var_name, struct_name, node)
- self._declare_device(var_name, struct_name, node.parent)
+ self._output_values(node)
+ self._declare_device(node)
self.out(''.join(self.get_buf()))
- def generate_tables(self):
+ def check_instantiate(self, require):
+ """Check if self._instantiate is set to the required value
+
+ If not, this outputs a message into the current file
+
+ Args:
+ require: True to require --instantiate, False to require that it not
+ be enabled
+ """
+ if require != self._instantiate:
+ self.out(
+ '/* This file is not used: --instantiate was %senabled */\n' %
+ ('not ' if require else ''))
+ return False
+ return True
+
+ def generate_plat(self):
"""Generate device defintions for the platform data
This writes out C platform data initialisation data and
See the documentation in doc/driver-model/of-plat.rst for more
information.
"""
- self.out_header()
+ if not self.check_instantiate(False):
+ return
self.out('/* Allow use of U_BOOT_DRVINFO() in this file */\n')
- self.out('#define DT_PLATDATA_C\n')
+ self.out('#define DT_PLAT_C\n')
self.out('\n')
self.out('#include <common.h>\n')
self.out('#include <dm.h>\n')
self.out('#include <dt-structs.h>\n')
self.out('\n')
- nodes_to_output = list(self._valid_nodes)
- # Keep outputing nodes until there is none left
- while nodes_to_output:
- node = nodes_to_output[0]
- # Output all the node's dependencies first
- for req_node in node.phandles:
- if req_node in nodes_to_output:
- self.output_node(req_node)
- nodes_to_output.remove(req_node)
- self.output_node(node)
- nodes_to_output.remove(node)
-
- # Define dm_populate_phandle_data() which will add the linking between
- # nodes using DM_GET_DEVICE
- # dtv_dmc_at_xxx.clocks[0].node = DM_GET_DEVICE(clock_controller_at_xxx)
- self.buf('void dm_populate_phandle_data(void) {\n')
- self.buf('}\n')
+ for node in self._valid_nodes:
+ self.output_node_plat(node)
self.out(''.join(self.get_buf()))
# key: Command used to generate this file
# value: OutputFile for this command
OUTPUT_FILES = {
- 'struct': OutputFile(Ftype.HEADER, 'dt-structs-gen.h'),
- 'platdata': OutputFile(Ftype.SOURCE, 'dt-platdata.c'),
+ 'decl':
+ OutputFile(Ftype.HEADER, 'dt-decl.h', DtbPlatdata.generate_decl,
+ 'Declares externs for all device/uclass instances'),
+ 'struct':
+ OutputFile(Ftype.HEADER, 'dt-structs-gen.h',
+ DtbPlatdata.generate_structs,
+ 'Defines the structs used to hold devicetree data'),
+ 'platdata':
+ OutputFile(Ftype.SOURCE, 'dt-plat.c', DtbPlatdata.generate_plat,
+ 'Declares the U_BOOT_DRIVER() records and platform data'),
}
-def run_steps(args, dtb_file, include_disabled, output, output_dirs,
- warning_disabled=False, drivers_additional=None):
+def run_steps(args, dtb_file, include_disabled, output, output_dirs, phase,
+ instantiate, warning_disabled=False, drivers_additional=None,
+ basedir=None, scan=None):
"""Run all the steps of the dtoc tool
Args:
output_dirs (tuple of str):
Directory to put C output files
Directory to put H output files
+ phase: The phase of U-Boot that we are generating data for, e.g. 'spl'
+ or 'tpl'. None if not known
+ instantiate: Instantiate devices so they don't need to be bound at
+ run-time
warning_disabled (bool): True to avoid showing warnings about missing
drivers
drivers_additional (list): List of additional drivers to use during
scanning
+ basedir (str): Base directory of U-Boot source code. Defaults to the
+ grandparent of this file's directory
+ scan (src_src.Scanner): Scanner from a previous run. This can help speed
+ up tests. Use None for normal operation
+
+ Returns:
+ DtbPlatdata object
+
Raises:
ValueError: if args has no command, or an unknown command
"""
if output and output_dirs and any(output_dirs):
raise ValueError('Must specify either output or output_dirs, not both')
- plat = DtbPlatdata(dtb_file, include_disabled, warning_disabled,
- drivers_additional)
- plat.scan_drivers()
+ if not scan:
+ scan = src_scan.Scanner(basedir, warning_disabled, drivers_additional,
+ phase)
+ scan.scan_drivers()
+ do_process = True
+ else:
+ do_process = False
+ plat = DtbPlatdata(scan, dtb_file, include_disabled, instantiate)
plat.scan_dtb()
- plat.scan_tree()
+ plat.scan_tree(add_root=instantiate)
+ plat.prepare_nodes()
plat.scan_reg_sizes()
plat.setup_output_dirs(output_dirs)
- structs = plat.scan_structs()
+ plat.scan_structs()
plat.scan_phandles()
+ plat.process_nodes(instantiate)
+ plat.read_aliases()
+ plat.assign_seqs()
cmds = args[0].split(',')
if 'all' in cmds:
(cmd, ', '.join(sorted(OUTPUT_FILES.keys()))))
plat.setup_output(outfile.ftype,
outfile.fname if output_dirs else output)
- if cmd == 'struct':
- plat.generate_structs(structs)
- elif cmd == 'platdata':
- plat.generate_tables()
+ plat.out_header(outfile)
+ outfile.method(plat)
plat.finish_output()
+ return plat
projects / J-u-boot.git / blobdiff