diff --git a/tools/buildman/builder.py b/tools/buildman/builder.py
index 620b7b8..80c05fb 100644
--- a/tools/buildman/builder.py
+++ b/tools/buildman/builder.py
@@ -134,7 +134,7 @@
         for fname in config_filename:
             self.config[fname] = {}
 
-    def Add(self, fname, key, value):
+    def add(self, fname, key, value):
         self.config[fname][key] = value
 
     def __hash__(self):
@@ -151,7 +151,7 @@
         self.target = target
         self.environment = {}
 
-    def Add(self, key, value):
+    def add(self, key, value):
         self.environment[key] = value
 
 class Builder:
@@ -315,7 +315,7 @@
         else:
             self._working_dir = os.path.join(base_dir, '.bm-work')
         self.threads = []
-        self.do_make = make_func or self.Make
+        self.do_make = make_func or self.make
         self.gnu_make = gnu_make
         self.checkout = checkout
         self.num_threads = num_threads
@@ -401,7 +401,7 @@
     def signal_handler(self, signal, frame):
         sys.exit(1)
 
-    def SetDisplayOptions(self, show_errors=False, show_sizes=False,
+    def set_display_options(self, show_errors=False, show_sizes=False,
                           show_detail=False, show_bloat=False,
                           list_error_boards=False, show_config=False,
                           show_environment=False, filter_dtb_warnings=False,
@@ -434,7 +434,7 @@
         self._filter_migration_warnings = filter_migration_warnings
         self._ide = ide
 
-    def _AddTimestamp(self):
+    def _add_timestamp(self):
         """Add a new timestamp to the list and record the build period.
 
         The build period is the length of time taken to perform a single
@@ -463,14 +463,14 @@
             self._timestamps.popleft()
             count -= 1
 
-    def SelectCommit(self, commit, checkout=True):
+    def select_commit(self, commit, checkout=True):
         """Checkout the selected commit for this build
         """
         self.commit = commit
         if checkout and self.checkout:
             gitutil.checkout(commit.hash)
 
-    def Make(self, commit, brd, stage, cwd, *args, **kwargs):
+    def make(self, commit, brd, stage, cwd, *args, **kwargs):
         """Run make
 
         Args:
@@ -515,7 +515,7 @@
             result.combined = '%s\n' % (' '.join(cmd)) + result.combined
         return result
 
-    def ProcessResult(self, result):
+    def process_result(self, result):
         """Process the result of a build, showing progress information
 
         Args:
@@ -536,8 +536,8 @@
             if self._verbose:
                 terminal.print_clear()
                 boards_selected = {target : result.brd}
-                self.ResetResultSummary(boards_selected)
-                self.ProduceResultSummary(result.commit_upto, self.commits,
+                self.reset_result_summary(boards_selected)
+                self.produce_result_summary(result.commit_upto, self.commits,
                                           boards_selected)
         else:
             target = '(starting)'
@@ -556,7 +556,7 @@
             line += ' ' * 8
 
         # Add our current completion time estimate
-        self._AddTimestamp()
+        self._add_timestamp()
         if self._complete_delay:
             line += '%s  : ' % self._complete_delay
 
@@ -565,7 +565,7 @@
             terminal.print_clear()
             tprint(line, newline=False, limit_to_line=True)
 
-    def _GetOutputDir(self, commit_upto):
+    def _get_output_dir(self, commit_upto):
         """Get the name of the output directory for a commit number
 
         The output directory is typically .../<branch>/<commit>.
@@ -580,7 +580,7 @@
         if self.commits:
             commit = self.commits[commit_upto]
             subject = commit.subject.translate(trans_valid_chars)
-            # See _GetOutputSpaceRemovals() which parses this name
+            # See _get_output_space_removals() which parses this name
             commit_dir = ('%02d_g%s_%s' % (commit_upto + 1,
                     commit.hash, subject[:20]))
         elif not self.no_subdirs:
@@ -589,7 +589,7 @@
             return self.base_dir
         return os.path.join(self.base_dir, commit_dir)
 
-    def GetBuildDir(self, commit_upto, target):
+    def get_build_dir(self, commit_upto, target):
         """Get the name of the build directory for a commit number
 
         The build directory is typically .../<branch>/<commit>/<target>.
@@ -598,30 +598,30 @@
             commit_upto: Commit number to use (0..self.count-1)
             target: Target name
         """
-        output_dir = self._GetOutputDir(commit_upto)
+        output_dir = self._get_output_dir(commit_upto)
         if self.work_in_output:
             return output_dir
         return os.path.join(output_dir, target)
 
-    def GetDoneFile(self, commit_upto, target):
+    def get_done_file(self, commit_upto, target):
         """Get the name of the done file for a commit number
 
         Args:
             commit_upto: Commit number to use (0..self.count-1)
             target: Target name
         """
-        return os.path.join(self.GetBuildDir(commit_upto, target), 'done')
+        return os.path.join(self.get_build_dir(commit_upto, target), 'done')
 
-    def GetSizesFile(self, commit_upto, target):
+    def get_sizes_file(self, commit_upto, target):
         """Get the name of the sizes file for a commit number
 
         Args:
             commit_upto: Commit number to use (0..self.count-1)
             target: Target name
         """
-        return os.path.join(self.GetBuildDir(commit_upto, target), 'sizes')
+        return os.path.join(self.get_build_dir(commit_upto, target), 'sizes')
 
-    def GetFuncSizesFile(self, commit_upto, target, elf_fname):
+    def get_func_sizes_file(self, commit_upto, target, elf_fname):
         """Get the name of the funcsizes file for a commit number and ELF file
 
         Args:
@@ -629,10 +629,10 @@
             target: Target name
             elf_fname: Filename of elf image
         """
-        return os.path.join(self.GetBuildDir(commit_upto, target),
+        return os.path.join(self.get_build_dir(commit_upto, target),
                             '%s.sizes' % elf_fname.replace('/', '-'))
 
-    def GetObjdumpFile(self, commit_upto, target, elf_fname):
+    def get_objdump_file(self, commit_upto, target, elf_fname):
         """Get the name of the objdump file for a commit number and ELF file
 
         Args:
@@ -640,20 +640,20 @@
             target: Target name
             elf_fname: Filename of elf image
         """
-        return os.path.join(self.GetBuildDir(commit_upto, target),
+        return os.path.join(self.get_build_dir(commit_upto, target),
                             '%s.objdump' % elf_fname.replace('/', '-'))
 
-    def GetErrFile(self, commit_upto, target):
+    def get_err_file(self, commit_upto, target):
         """Get the name of the err file for a commit number
 
         Args:
             commit_upto: Commit number to use (0..self.count-1)
             target: Target name
         """
-        output_dir = self.GetBuildDir(commit_upto, target)
+        output_dir = self.get_build_dir(commit_upto, target)
         return os.path.join(output_dir, 'err')
 
-    def FilterErrors(self, lines):
+    def filter_errors(self, lines):
         """Filter out errors in which we have no interest
 
         We should probably use map().
@@ -676,7 +676,7 @@
             out_lines.append(line)
         return out_lines
 
-    def ReadFuncSizes(self, fname, fd):
+    def read_func_sizes(self, fname, fd):
         """Read function sizes from the output of 'nm'
 
         Args:
@@ -700,7 +700,7 @@
                         sym[name] = sym.get(name, 0) + int(size, 16)
         return sym
 
-    def _ProcessConfig(self, fname):
+    def _process_config(self, fname):
         """Read in a .config, autoconf.mk or autoconf.h file
 
         This function handles all config file types. It ignores comments and
@@ -737,7 +737,7 @@
                     config[key] = value
         return config
 
-    def _ProcessEnvironment(self, fname):
+    def _process_environment(self, fname):
         """Read in a uboot.env file
 
         This function reads in environment variables from a file.
@@ -762,7 +762,7 @@
                         pass
         return environment
 
-    def GetBuildOutcome(self, commit_upto, target, read_func_sizes,
+    def get_build_outcome(self, commit_upto, target, read_func_sizes,
                         read_config, read_environment):
         """Work out the outcome of a build.
 
@@ -776,8 +776,8 @@
         Returns:
             Outcome object
         """
-        done_file = self.GetDoneFile(commit_upto, target)
-        sizes_file = self.GetSizesFile(commit_upto, target)
+        done_file = self.get_done_file(commit_upto, target)
+        sizes_file = self.get_sizes_file(commit_upto, target)
         sizes = {}
         func_sizes = {}
         config = {}
@@ -791,10 +791,10 @@
                     # Try a rebuild
                     return_code = 1
                 err_lines = []
-                err_file = self.GetErrFile(commit_upto, target)
+                err_file = self.get_err_file(commit_upto, target)
                 if os.path.exists(err_file):
                     with open(err_file, 'r') as fd:
-                        err_lines = self.FilterErrors(fd.readlines())
+                        err_lines = self.filter_errors(fd.readlines())
 
                 # Decide whether the build was ok, failed or created warnings
                 if return_code:
@@ -823,30 +823,30 @@
                             sizes[values[5]] = size_dict
 
             if read_func_sizes:
-                pattern = self.GetFuncSizesFile(commit_upto, target, '*')
+                pattern = self.get_func_sizes_file(commit_upto, target, '*')
                 for fname in glob.glob(pattern):
                     with open(fname, 'r') as fd:
                         dict_name = os.path.basename(fname).replace('.sizes',
                                                                     '')
-                        func_sizes[dict_name] = self.ReadFuncSizes(fname, fd)
+                        func_sizes[dict_name] = self.read_func_sizes(fname, fd)
 
             if read_config:
-                output_dir = self.GetBuildDir(commit_upto, target)
+                output_dir = self.get_build_dir(commit_upto, target)
                 for name in self.config_filenames:
                     fname = os.path.join(output_dir, name)
-                    config[name] = self._ProcessConfig(fname)
+                    config[name] = self._process_config(fname)
 
             if read_environment:
-                output_dir = self.GetBuildDir(commit_upto, target)
+                output_dir = self.get_build_dir(commit_upto, target)
                 fname = os.path.join(output_dir, 'uboot.env')
-                environment = self._ProcessEnvironment(fname)
+                environment = self._process_environment(fname)
 
             return Builder.Outcome(rc, err_lines, sizes, func_sizes, config,
                                    environment)
 
         return Builder.Outcome(OUTCOME_UNKNOWN, [], {}, {}, {}, {})
 
-    def GetResultSummary(self, boards_selected, commit_upto, read_func_sizes,
+    def get_result_summary(self, boards_selected, commit_upto, read_func_sizes,
                          read_config, read_environment):
         """Calculate a summary of the results of building a commit.
 
@@ -877,7 +877,7 @@
                     key: environment variable
                     value: value of environment variable
         """
-        def AddLine(lines_summary, lines_boards, line, board):
+        def add_line(lines_summary, lines_boards, line, board):
             line = line.rstrip()
             if line in lines_boards:
                 lines_boards[line].append(board)
@@ -894,7 +894,7 @@
         environment = {}
 
         for brd in boards_selected.values():
-            outcome = self.GetBuildOutcome(commit_upto, brd.target,
+            outcome = self.get_build_outcome(commit_upto, brd.target,
                                            read_func_sizes, read_config,
                                            read_environment)
             board_dict[brd.target] = outcome
@@ -911,15 +911,15 @@
                         is_note = self._re_note.match(line)
                         if is_warning or (last_was_warning and is_note):
                             if last_func:
-                                AddLine(warn_lines_summary, warn_lines_boards,
+                                add_line(warn_lines_summary, warn_lines_boards,
                                         last_func, brd)
-                            AddLine(warn_lines_summary, warn_lines_boards,
+                            add_line(warn_lines_summary, warn_lines_boards,
                                     line, brd)
                         else:
                             if last_func:
-                                AddLine(err_lines_summary, err_lines_boards,
+                                add_line(err_lines_summary, err_lines_boards,
                                         last_func, brd)
-                            AddLine(err_lines_summary, err_lines_boards,
+                            add_line(err_lines_summary, err_lines_boards,
                                     line, brd)
                         last_was_warning = is_warning
                         last_func = None
@@ -927,19 +927,19 @@
             for fname in self.config_filenames:
                 if outcome.config:
                     for key, value in outcome.config[fname].items():
-                        tconfig.Add(fname, key, value)
+                        tconfig.add(fname, key, value)
             config[brd.target] = tconfig
 
             tenvironment = Environment(brd.target)
             if outcome.environment:
                 for key, value in outcome.environment.items():
-                    tenvironment.Add(key, value)
+                    tenvironment.add(key, value)
             environment[brd.target] = tenvironment
 
         return (board_dict, err_lines_summary, err_lines_boards,
                 warn_lines_summary, warn_lines_boards, config, environment)
 
-    def AddOutcome(self, board_dict, arch_list, changes, char, color):
+    def add_outcome(self, board_dict, arch_list, changes, char, color):
         """Add an output to our list of outcomes for each architecture
 
         This simple function adds failing boards (changes) to the
@@ -969,19 +969,19 @@
                 arch_list[arch] += str
 
 
-    def ColourNum(self, num):
+    def colour_num(self, num):
         color = self.col.RED if num > 0 else self.col.GREEN
         if num == 0:
             return '0'
         return self.col.build(color, str(num))
 
-    def ResetResultSummary(self, board_selected):
+    def reset_result_summary(self, board_selected):
         """Reset the results summary ready for use.
 
         Set up the base board list to be all those selected, and set the
         error lines to empty.
 
-        Following this, calls to PrintResultSummary() will use this
+        Following this, calls to print_result_summary() will use this
         information to work out what has changed.
 
         Args:
@@ -998,7 +998,7 @@
         self._base_config = None
         self._base_environment = None
 
-    def PrintFuncSizeDetail(self, fname, old, new):
+    def print_func_size_detail(self, fname, old, new):
         grow, shrink, add, remove, up, down = 0, 0, 0, 0, 0, 0
         delta, common = [], {}
 
@@ -1032,7 +1032,7 @@
         args = [add, -remove, grow, -shrink, up, -down, up - down]
         if max(args) == 0 and min(args) == 0:
             return
-        args = [self.ColourNum(x) for x in args]
+        args = [self.colour_num(x) for x in args]
         indent = ' ' * 15
         tprint('%s%s: add: %s/%s, grow: %s/%s bytes: %s/%s (%s)' %
               tuple([indent, self.col.build(self.col.YELLOW, fname)] + args))
@@ -1046,7 +1046,7 @@
                 tprint(msg, colour=color)
 
 
-    def PrintSizeDetail(self, target_list, show_bloat):
+    def print_size_detail(self, target_list, show_bloat):
         """Show details size information for each board
 
         Args:
@@ -1079,12 +1079,12 @@
                     outcome = result['_outcome']
                     base_outcome = self._base_board_dict[target]
                     for fname in outcome.func_sizes:
-                        self.PrintFuncSizeDetail(fname,
+                        self.print_func_size_detail(fname,
                                                  base_outcome.func_sizes[fname],
                                                  outcome.func_sizes[fname])
 
 
-    def PrintSizeSummary(self, board_selected, board_dict, show_detail,
+    def print_size_summary(self, board_selected, board_dict, show_detail,
                          show_bloat):
         """Print a summary of image sizes broken down by section.
 
@@ -1185,10 +1185,10 @@
             if printed_arch:
                 tprint()
                 if show_detail:
-                    self.PrintSizeDetail(target_list, show_bloat)
+                    self.print_size_detail(target_list, show_bloat)
 
 
-    def PrintResultSummary(self, board_selected, board_dict, err_lines,
+    def print_result_summary(self, board_selected, board_dict, err_lines,
                            err_line_boards, warn_lines, warn_line_boards,
                            config, environment, show_sizes, show_detail,
                            show_bloat, show_config, show_environment):
@@ -1224,7 +1224,7 @@
             show_config: Show config changes
             show_environment: Show environment changes
         """
-        def _BoardList(line, line_boards):
+        def _board_list(line, line_boards):
             """Helper function to get a line of boards containing a line
 
             Args:
@@ -1243,7 +1243,7 @@
                         board_set.add(brd)
             return brds
 
-        def _CalcErrorDelta(base_lines, base_line_boards, lines, line_boards,
+        def _calc_error_delta(base_lines, base_line_boards, lines, line_boards,
                             char):
             """Calculate the required output based on changes in errors
 
@@ -1267,17 +1267,17 @@
             worse_lines = []
             for line in lines:
                 if line not in base_lines:
-                    errline = ErrLine(char + '+', _BoardList(line, line_boards),
+                    errline = ErrLine(char + '+', _board_list(line, line_boards),
                                       line)
                     worse_lines.append(errline)
             for line in base_lines:
                 if line not in lines:
                     errline = ErrLine(char + '-',
-                                      _BoardList(line, base_line_boards), line)
+                                      _board_list(line, base_line_boards), line)
                     better_lines.append(errline)
             return better_lines, worse_lines
 
-        def _CalcConfig(delta, name, config):
+        def _calc_config(delta, name, config):
             """Calculate configuration changes
 
             Args:
@@ -1295,7 +1295,7 @@
                 out += '%s=%s ' % (key, config[key])
             return '%s %s: %s' % (delta, name, out)
 
-        def _AddConfig(lines, name, config_plus, config_minus, config_change):
+        def _add_config(lines, name, config_plus, config_minus, config_change):
             """Add changes in configuration to a list
 
             Args:
@@ -1312,13 +1312,13 @@
                     value: config value
             """
             if config_plus:
-                lines.append(_CalcConfig('+', name, config_plus))
+                lines.append(_calc_config('+', name, config_plus))
             if config_minus:
-                lines.append(_CalcConfig('-', name, config_minus))
+                lines.append(_calc_config('-', name, config_minus))
             if config_change:
-                lines.append(_CalcConfig('c', name, config_change))
+                lines.append(_calc_config('c', name, config_change))
 
-        def _OutputConfigInfo(lines):
+        def _output_config_info(lines):
             for line in lines:
                 if not line:
                     continue
@@ -1330,7 +1330,7 @@
                     col = self.col.YELLOW
                 tprint('   ' + line, newline=True, colour=col)
 
-        def _OutputErrLines(err_lines, colour):
+        def _output_err_lines(err_lines, colour):
             """Output the line of error/warning lines, if not empty
 
             Also increments self._error_lines if err_lines not empty
@@ -1388,9 +1388,9 @@
                 new_boards.append(target)
 
         # Get a list of errors and warnings that have appeared, and disappeared
-        better_err, worse_err = _CalcErrorDelta(self._base_err_lines,
+        better_err, worse_err = _calc_error_delta(self._base_err_lines,
                 self._base_err_line_boards, err_lines, err_line_boards, '')
-        better_warn, worse_warn = _CalcErrorDelta(self._base_warn_lines,
+        better_warn, worse_warn = _calc_error_delta(self._base_warn_lines,
                 self._base_warn_line_boards, warn_lines, warn_line_boards, 'w')
 
         # For the IDE mode, print out all the output
@@ -1403,26 +1403,26 @@
         elif any((ok_boards, warn_boards, err_boards, unknown_boards, new_boards,
                 worse_err, better_err, worse_warn, better_warn)):
             arch_list = {}
-            self.AddOutcome(board_selected, arch_list, ok_boards, '',
+            self.add_outcome(board_selected, arch_list, ok_boards, '',
                     self.col.GREEN)
-            self.AddOutcome(board_selected, arch_list, warn_boards, 'w+',
+            self.add_outcome(board_selected, arch_list, warn_boards, 'w+',
                     self.col.YELLOW)
-            self.AddOutcome(board_selected, arch_list, err_boards, '+',
+            self.add_outcome(board_selected, arch_list, err_boards, '+',
                     self.col.RED)
-            self.AddOutcome(board_selected, arch_list, new_boards, '*', self.col.BLUE)
+            self.add_outcome(board_selected, arch_list, new_boards, '*', self.col.BLUE)
             if self._show_unknown:
-                self.AddOutcome(board_selected, arch_list, unknown_boards, '?',
+                self.add_outcome(board_selected, arch_list, unknown_boards, '?',
                         self.col.MAGENTA)
             for arch, target_list in arch_list.items():
                 tprint('%10s: %s' % (arch, target_list))
                 self._error_lines += 1
-            _OutputErrLines(better_err, colour=self.col.GREEN)
-            _OutputErrLines(worse_err, colour=self.col.RED)
-            _OutputErrLines(better_warn, colour=self.col.CYAN)
-            _OutputErrLines(worse_warn, colour=self.col.YELLOW)
+            _output_err_lines(better_err, colour=self.col.GREEN)
+            _output_err_lines(worse_err, colour=self.col.RED)
+            _output_err_lines(better_warn, colour=self.col.CYAN)
+            _output_err_lines(worse_warn, colour=self.col.YELLOW)
 
         if show_sizes:
-            self.PrintSizeSummary(board_selected, board_dict, show_detail,
+            self.print_size_summary(board_selected, board_dict, show_detail,
                                   show_bloat)
 
         if show_environment and self._base_environment:
@@ -1450,10 +1450,10 @@
                         desc = '%s -> %s' % (value, new_value)
                         environment_change[key] = desc
 
-                _AddConfig(lines, target, environment_plus, environment_minus,
+                _add_config(lines, target, environment_plus, environment_minus,
                            environment_change)
 
-            _OutputConfigInfo(lines)
+            _output_config_info(lines)
 
         if show_config and self._base_config:
             summary = {}
@@ -1516,9 +1516,9 @@
                     arch_config_minus[arch][name].update(config_minus)
                     arch_config_change[arch][name].update(config_change)
 
-                    _AddConfig(lines, name, config_plus, config_minus,
+                    _add_config(lines, name, config_plus, config_minus,
                                config_change)
-                _AddConfig(lines, 'all', all_config_plus, all_config_minus,
+                _add_config(lines, 'all', all_config_plus, all_config_minus,
                            all_config_change)
                 summary[target] = '\n'.join(lines)
 
@@ -1538,20 +1538,20 @@
                     all_plus.update(arch_config_plus[arch][name])
                     all_minus.update(arch_config_minus[arch][name])
                     all_change.update(arch_config_change[arch][name])
-                    _AddConfig(lines, name, arch_config_plus[arch][name],
+                    _add_config(lines, name, arch_config_plus[arch][name],
                                arch_config_minus[arch][name],
                                arch_config_change[arch][name])
-                _AddConfig(lines, 'all', all_plus, all_minus, all_change)
+                _add_config(lines, 'all', all_plus, all_minus, all_change)
                 #arch_summary[target] = '\n'.join(lines)
                 if lines:
                     tprint('%s:' % arch)
-                    _OutputConfigInfo(lines)
+                    _output_config_info(lines)
 
             for lines, targets in lines_by_target.items():
                 if not lines:
                     continue
                 tprint('%s :' % ' '.join(sorted(targets)))
-                _OutputConfigInfo(lines.split('\n'))
+                _output_config_info(lines.split('\n'))
 
 
         # Save our updated information for the next call to this function
@@ -1572,9 +1572,9 @@
             tprint("Boards not built (%d): %s" % (len(not_built),
                   ', '.join(not_built)))
 
-    def ProduceResultSummary(self, commit_upto, commits, board_selected):
+    def produce_result_summary(self, commit_upto, commits, board_selected):
             (board_dict, err_lines, err_line_boards, warn_lines,
-             warn_line_boards, config, environment) = self.GetResultSummary(
+             warn_line_boards, config, environment) = self.get_result_summary(
                     board_selected, commit_upto,
                     read_func_sizes=self._show_bloat,
                     read_config=self._show_config,
@@ -1583,13 +1583,13 @@
                 msg = '%02d: %s' % (commit_upto + 1,
                         commits[commit_upto].subject)
                 tprint(msg, colour=self.col.BLUE)
-            self.PrintResultSummary(board_selected, board_dict,
+            self.print_result_summary(board_selected, board_dict,
                     err_lines if self._show_errors else [], err_line_boards,
                     warn_lines if self._show_errors else [], warn_line_boards,
                     config, environment, self._show_sizes, self._show_detail,
                     self._show_bloat, self._show_config, self._show_environment)
 
-    def ShowSummary(self, commits, board_selected):
+    def show_summary(self, commits, board_selected):
         """Show a build summary for U-Boot for a given board list.
 
         Reset the result summary, then repeatedly call GetResultSummary on
@@ -1601,16 +1601,16 @@
         """
         self.commit_count = len(commits) if commits else 1
         self.commits = commits
-        self.ResetResultSummary(board_selected)
+        self.reset_result_summary(board_selected)
         self._error_lines = 0
 
         for commit_upto in range(0, self.commit_count, self._step):
-            self.ProduceResultSummary(commit_upto, commits, board_selected)
+            self.produce_result_summary(commit_upto, commits, board_selected)
         if not self._error_lines:
             tprint('(no errors to report)', colour=self.col.GREEN)
 
 
-    def SetupBuild(self, board_selected, commits):
+    def setup_build(self, board_selected, commits):
         """Set up ready to start a build.
 
         Args:
@@ -1623,7 +1623,7 @@
         self.upto = self.warned = self.fail = 0
         self._timestamps = collections.deque()
 
-    def GetThreadDir(self, thread_num):
+    def get_thread_dir(self, thread_num):
         """Get the directory path to the working dir for a thread.
 
         Args:
@@ -1634,7 +1634,7 @@
             return self._working_dir
         return os.path.join(self._working_dir, '%02d' % max(thread_num, 0))
 
-    def _PrepareThread(self, thread_num, setup_git):
+    def _prepare_thread(self, thread_num, setup_git):
         """Prepare the working directory for a thread.
 
         This clones or fetches the repo into the thread's work directory.
@@ -1647,7 +1647,7 @@
                'clone' to set up a git clone
                'worktree' to set up a git worktree
         """
-        thread_dir = self.GetThreadDir(thread_num)
+        thread_dir = self.get_thread_dir(thread_num)
         builderthread.Mkdir(thread_dir)
         git_dir = os.path.join(thread_dir, '.git')
 
@@ -1684,7 +1684,7 @@
             else:
                 raise ValueError("Can't setup git repo with %s." % setup_git)
 
-    def _PrepareWorkingSpace(self, max_threads, setup_git):
+    def _prepare_working_space(self, max_threads, setup_git):
         """Prepare the working directory for use.
 
         Set up the git repo for each thread. Creates a linked working tree
@@ -1710,14 +1710,14 @@
 
         # Always do at least one thread
         for thread in range(max(max_threads, 1)):
-            self._PrepareThread(thread, setup_git)
+            self._prepare_thread(thread, setup_git)
 
-    def _GetOutputSpaceRemovals(self):
+    def _get_output_space_removals(self):
         """Get the output directories ready to receive files.
 
         Figure out what needs to be deleted in the output directory before it
         can be used. We only delete old buildman directories which have the
-        expected name pattern. See _GetOutputDir().
+        expected name pattern. See _get_output_dir().
 
         Returns:
             List of full paths of directories to remove
@@ -1726,7 +1726,7 @@
             return
         dir_list = []
         for commit_upto in range(self.commit_count):
-            dir_list.append(self._GetOutputDir(commit_upto))
+            dir_list.append(self._get_output_dir(commit_upto))
 
         to_remove = []
         for dirname in glob.glob(os.path.join(self.base_dir, '*')):
@@ -1737,14 +1737,14 @@
                     to_remove.append(dirname)
         return to_remove
 
-    def _PrepareOutputSpace(self):
+    def _prepare_output_space(self):
         """Get the output directories ready to receive files.
 
         We delete any output directories which look like ones we need to
         create. Having left over directories is confusing when the user wants
         to check the output manually.
         """
-        to_remove = self._GetOutputSpaceRemovals()
+        to_remove = self._get_output_space_removals()
         if to_remove:
             tprint('Removing %d old build directories...' % len(to_remove),
                   newline=False)
@@ -1752,7 +1752,7 @@
                 shutil.rmtree(dirname)
             terminal.print_clear()
 
-    def BuildBoards(self, commits, board_selected, keep_outputs, verbose):
+    def build_boards(self, commits, board_selected, keep_outputs, verbose):
         """Build all commits for a list of boards
 
         Args:
@@ -1771,15 +1771,15 @@
         self.commits = commits
         self._verbose = verbose
 
-        self.ResetResultSummary(board_selected)
+        self.reset_result_summary(board_selected)
         builderthread.Mkdir(self.base_dir, parents = True)
-        self._PrepareWorkingSpace(min(self.num_threads, len(board_selected)),
+        self._prepare_working_space(min(self.num_threads, len(board_selected)),
                 commits is not None)
-        self._PrepareOutputSpace()
+        self._prepare_output_space()
         if not self._ide:
             tprint('\rStarting build...', newline=False)
-        self.SetupBuild(board_selected, commits)
-        self.ProcessResult(None)
+        self.setup_build(board_selected, commits)
+        self.process_result(None)
         self.thread_exceptions = []
         # Create jobs to build all commits for each board
         for brd in board_selected.values():
diff --git a/tools/buildman/builderthread.py b/tools/buildman/builderthread.py
index 635865c..5f1200a 100644
--- a/tools/buildman/builderthread.py
+++ b/tools/buildman/builderthread.py
@@ -77,7 +77,7 @@
         """
         while True:
             result = self.builder.out_queue.get()
-            self.builder.ProcessResult(result)
+            self.builder.process_result(result)
             self.builder.out_queue.task_done()
 
 
@@ -176,7 +176,7 @@
             out_dir = os.path.join(work_dir, out_rel_dir)
 
         # Check if the job was already completed last time
-        done_file = self.builder.GetDoneFile(commit_upto, brd.target)
+        done_file = self.builder.get_done_file(commit_upto, brd.target)
         result.already_done = os.path.exists(done_file)
         will_build = (force_build or force_build_failures or
             not result.already_done)
@@ -194,7 +194,7 @@
             if result.return_code == RETURN_CODE_RETRY:
                 will_build = True
             elif will_build:
-                err_file = self.builder.GetErrFile(commit_upto, brd.target)
+                err_file = self.builder.get_err_file(commit_upto, brd.target)
                 if os.path.exists(err_file) and os.stat(err_file).st_size:
                     result.stderr = 'bad'
                 elif not force_build:
@@ -270,7 +270,7 @@
                 # SPL image. If we don't remove it (i.e. see do_config and
                 # self.mrproper below) then it will appear to be the output of
                 # this build, even if it does not produce SPL images.
-                build_dir = self.builder.GetBuildDir(commit_upto, brd.target)
+                build_dir = self.builder.get_build_dir(commit_upto, brd.target)
                 for elf in BASE_ELF_FILENAMES:
                     fname = os.path.join(out_dir, elf)
                     if os.path.exists(fname):
@@ -345,9 +345,9 @@
             return
 
         # Write the output and stderr
-        output_dir = self.builder._GetOutputDir(result.commit_upto)
+        output_dir = self.builder._get_output_dir(result.commit_upto)
         Mkdir(output_dir)
-        build_dir = self.builder.GetBuildDir(result.commit_upto,
+        build_dir = self.builder.get_build_dir(result.commit_upto,
                 result.brd.target)
         Mkdir(build_dir)
 
@@ -356,7 +356,7 @@
             if result.stdout:
                 fd.write(result.stdout)
 
-        errfile = self.builder.GetErrFile(result.commit_upto,
+        errfile = self.builder.get_err_file(result.commit_upto,
                 result.brd.target)
         if result.stderr:
             with open(errfile, 'w') as fd:
@@ -370,7 +370,7 @@
 
         if result.toolchain:
             # Write the build result and toolchain information.
-            done_file = self.builder.GetDoneFile(result.commit_upto,
+            done_file = self.builder.get_done_file(result.commit_upto,
                     result.brd.target)
             with open(done_file, 'w') as fd:
                 if maybe_aborted:
@@ -403,7 +403,7 @@
                         capture_stderr=True, cwd=result.out_dir,
                         raise_on_error=False, env=env)
                 if nm_result.stdout:
-                    nm = self.builder.GetFuncSizesFile(result.commit_upto,
+                    nm = self.builder.get_func_sizes_file(result.commit_upto,
                                     result.brd.target, fname)
                     with open(nm, 'w') as fd:
                         print(nm_result.stdout, end=' ', file=fd)
@@ -414,7 +414,7 @@
                         raise_on_error=False, env=env)
                 rodata_size = ''
                 if dump_result.stdout:
-                    objdump = self.builder.GetObjdumpFile(result.commit_upto,
+                    objdump = self.builder.get_objdump_file(result.commit_upto,
                                     result.brd.target, fname)
                     with open(objdump, 'w') as fd:
                         print(dump_result.stdout, end=' ', file=fd)
@@ -447,7 +447,7 @@
             # adds an additional hex value at the end of each line for the
             # rodata size
             if len(lines):
-                sizes = self.builder.GetSizesFile(result.commit_upto,
+                sizes = self.builder.get_sizes_file(result.commit_upto,
                                 result.brd.target)
                 with open(sizes, 'w') as fd:
                     print('\n'.join(lines), file=fd)
@@ -502,7 +502,7 @@
         if self.thread_num != -1:
             self.builder.out_queue.put(result)
         else:
-            self.builder.ProcessResult(result)
+            self.builder.process_result(result)
 
     def RunJob(self, job):
         """Run a single job
@@ -516,7 +516,7 @@
             List of Result objects
         """
         brd = job.brd
-        work_dir = self.builder.GetThreadDir(self.thread_num)
+        work_dir = self.builder.get_thread_dir(self.thread_num)
         self.toolchain = None
         if job.commits:
             # Run 'make board_defconfig' on the first commit
diff --git a/tools/buildman/control.py b/tools/buildman/control.py
index 4bceaea..e6c20d6 100644
--- a/tools/buildman/control.py
+++ b/tools/buildman/control.py
@@ -513,15 +513,14 @@
         tprint(get_action_summary(args.summary, commit_count, board_selected,
                                   args.threads, args.jobs))
 
-    builder.SetDisplayOptions(
-        args.show_errors, args.show_sizes, args.show_detail,
-        args.show_bloat, args.list_error_boards, args.show_config,
-        args.show_environment, args.filter_dtb_warnings,
-        args.filter_migration_warnings, args.ide)
+    builder.set_display_options(
+        args.show_errors, args.show_sizes, args.show_detail, args.show_bloat,
+        args.list_error_boards, args.show_config, args.show_environment,
+        args.filter_dtb_warnings, args.filter_migration_warnings, args.ide)
     if args.summary:
-        builder.ShowSummary(commits, board_selected)
+        builder.show_summary(commits, board_selected)
     else:
-        fail, warned, excs = builder.BuildBoards(
+        fail, warned, excs = builder.build_boards(
             commits, board_selected, args.keep_outputs, args.verbose)
         if excs:
             return 102
diff --git a/tools/buildman/func_test.py b/tools/buildman/func_test.py
index 56e9f00..07b4ac0 100644
--- a/tools/buildman/func_test.py
+++ b/tools/buildman/func_test.py
@@ -509,7 +509,7 @@
         for commit in range(self._commits):
             for brd in self._boards.get_list():
                 if brd.arch != 'sandbox':
-                  errfile = self._builder.GetErrFile(commit, brd.target)
+                  errfile = self._builder.get_err_file(commit, brd.target)
                   fd = open(errfile)
                   self.assertEqual(fd.readlines(),
                           ['No tool chain for %s\n' % brd.arch])
diff --git a/tools/buildman/test.py b/tools/buildman/test.py
index 3f55035..7ac6726 100644
--- a/tools/buildman/test.py
+++ b/tools/buildman/test.py
@@ -208,8 +208,8 @@
 
         # Build the boards for the pre-defined commits and warnings/errors
         # associated with each. This calls our Make() to inject the fake output.
-        build.BuildBoards(self.commits, board_selected, keep_outputs=False,
-                          verbose=False)
+        build.build_boards(self.commits, board_selected, keep_outputs=False,
+                           verbose=False)
         lines = terminal.get_print_test_lines()
         count = 0
         for line in lines:
@@ -219,8 +219,8 @@
         # We should get two starting messages, an update for every commit built
         # and a summary message
         self.assertEqual(count, len(commits) * len(BOARDS) + 3)
-        build.SetDisplayOptions(**kwdisplay_args);
-        build.ShowSummary(self.commits, board_selected)
+        build.set_display_options(**kwdisplay_args);
+        build.show_summary(self.commits, board_selected)
         if echo_lines:
             terminal.echo_print_test_lines()
         return iter(terminal.get_print_test_lines())
@@ -528,17 +528,17 @@
                                                    'sandbox']),
                          ({'all': ['board4'], 'sandbox': ['board4']}, []))
     def CheckDirs(self, build, dirname):
-        self.assertEqual('base%s' % dirname, build._GetOutputDir(1))
+        self.assertEqual('base%s' % dirname, build._get_output_dir(1))
         self.assertEqual('base%s/fred' % dirname,
-                         build.GetBuildDir(1, 'fred'))
+                         build.get_build_dir(1, 'fred'))
         self.assertEqual('base%s/fred/done' % dirname,
-                         build.GetDoneFile(1, 'fred'))
+                         build.get_done_file(1, 'fred'))
         self.assertEqual('base%s/fred/u-boot.sizes' % dirname,
-                         build.GetFuncSizesFile(1, 'fred', 'u-boot'))
+                         build.get_func_sizes_file(1, 'fred', 'u-boot'))
         self.assertEqual('base%s/fred/u-boot.objdump' % dirname,
-                         build.GetObjdumpFile(1, 'fred', 'u-boot'))
+                         build.get_objdump_file(1, 'fred', 'u-boot'))
         self.assertEqual('base%s/fred/err' % dirname,
-                         build.GetErrFile(1, 'fred'))
+                         build.get_err_file(1, 'fred'))
 
     def testOutputDir(self):
         build = builder.Builder(self.toolchains, BASE_DIR, None, 1, 2,
@@ -622,7 +622,7 @@
         build = builder.Builder(self.toolchains, base_dir, None, 1, 2)
         build.commits = self.commits
         build.commit_count = len(commits)
-        result = set(build._GetOutputSpaceRemovals())
+        result = set(build._get_output_space_removals())
         expected = set([os.path.join(base_dir, f) for f in to_remove])
         self.assertEqual(expected, result)