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-rw-r--r--tools/dtoc/dtb_platdata.py10
-rw-r--r--tools/dtoc/src_scan.py39
-rwxr-xr-xtools/dtoc/test_dtoc.py23
-rw-r--r--tools/dtoc/test_src_scan.py7
4 files changed, 59 insertions, 20 deletions
diff --git a/tools/dtoc/dtb_platdata.py b/tools/dtoc/dtb_platdata.py
index af21156659..e08b92cf8a 100644
--- a/tools/dtoc/dtb_platdata.py
+++ b/tools/dtoc/dtb_platdata.py
@@ -350,16 +350,22 @@ class DtbPlatdata():
# recurse to handle any subnodes
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_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 = []
+ 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,
@@ -839,7 +845,7 @@ def run_steps(args, dtb_file, include_disabled, output, output_dirs, phase,
do_process = False
plat = DtbPlatdata(scan, dtb_file, include_disabled)
plat.scan_dtb()
- plat.scan_tree()
+ plat.scan_tree(add_root=False)
plat.prepare_nodes()
plat.scan_reg_sizes()
plat.setup_output_dirs(output_dirs)
diff --git a/tools/dtoc/src_scan.py b/tools/dtoc/src_scan.py
index 8619206a8d..114212cfe2 100644
--- a/tools/dtoc/src_scan.py
+++ b/tools/dtoc/src_scan.py
@@ -33,6 +33,8 @@ def conv_name_to_c(name):
new = new.replace('-', '_')
new = new.replace(',', '_')
new = new.replace('.', '_')
+ if new == '/':
+ return 'root'
return new
def get_compat_name(node):
@@ -250,7 +252,10 @@ class Scanner:
In case of no match found, the return will be the same as
get_compat_name()
"""
- compat_list_c = get_compat_name(node)
+ if not node.parent:
+ compat_list_c = ['root_driver']
+ else:
+ compat_list_c = get_compat_name(node)
for compat_c in compat_list_c:
if not compat_c in self._drivers.keys():
@@ -509,21 +514,23 @@ class Scanner:
elif m_hdr:
driver.headers.append(m_hdr.group(1))
elif '};' in line:
- if driver.uclass_id and compat:
- if compat not in of_match:
- raise ValueError(
- "%s: Unknown compatible var '%s' (found: %s)" %
- (fname, compat, ','.join(of_match.keys())))
- driver.compat = of_match[compat]
-
- # This needs to be deterministic, since a driver may
- # have multiple compatible strings pointing to it.
- # We record the one earliest in the alphabet so it
- # will produce the same result on all machines.
- for compat_id in of_match[compat]:
- old = self._compat_to_driver.get(compat_id)
- if not old or driver.name < old.name:
- self._compat_to_driver[compat_id] = driver
+ is_root = driver.name == 'root_driver'
+ if driver.uclass_id and (compat or is_root):
+ if not is_root:
+ if compat not in of_match:
+ raise ValueError(
+ "%s: Unknown compatible var '%s' (found: %s)" %
+ (fname, compat, ','.join(of_match.keys())))
+ driver.compat = of_match[compat]
+
+ # This needs to be deterministic, since a driver may
+ # have multiple compatible strings pointing to it.
+ # We record the one earliest in the alphabet so it
+ # will produce the same result on all machines.
+ for compat_id in of_match[compat]:
+ old = self._compat_to_driver.get(compat_id)
+ if not old or driver.name < old.name:
+ self._compat_to_driver[compat_id] = driver
drivers[driver.name] = driver
else:
# The driver does not have a uclass or compat string.
diff --git a/tools/dtoc/test_dtoc.py b/tools/dtoc/test_dtoc.py
index b077cf0e76..ed8c7e4788 100755
--- a/tools/dtoc/test_dtoc.py
+++ b/tools/dtoc/test_dtoc.py
@@ -974,10 +974,10 @@ U_BOOT_DRVINFO(spl_test2) = {
output = tools.GetOutputFilename('output')
# Take a copy before messing with it
- scan = copy.deepcopy(saved_scan)
+ scan = copy_scan()
plat = dtb_platdata.DtbPlatdata(scan, dtb_file, False)
plat.scan_dtb()
- plat.scan_tree()
+ plat.scan_tree(False)
plat.prepare_nodes()
return plat, scan
@@ -1123,3 +1123,22 @@ U_BOOT_DRVINFO(spl_test2) = {
self.assertEqual(4, i2c.seq)
spl = plat._fdt.GetNode('/spl-test')
self.assertEqual(0, spl.seq)
+
+ def test_process_root(self):
+ """Test assignment of sequence numnbers"""
+ dtb_file = get_dtb_file('dtoc_test_simple.dts')
+ output = tools.GetOutputFilename('output')
+
+ # Take a copy before messing with it
+ scan = copy_scan()
+ plat = dtb_platdata.DtbPlatdata(scan, dtb_file, False)
+ plat.scan_dtb()
+ root = plat._fdt.GetRoot()
+
+ plat.scan_tree(False)
+ self.assertNotIn(root, plat._valid_nodes)
+
+ plat.scan_tree(True)
+ self.assertIn(root, plat._valid_nodes)
+ self.assertEqual('root_driver',
+ scan.get_normalized_compat_name(root)[0])
diff --git a/tools/dtoc/test_src_scan.py b/tools/dtoc/test_src_scan.py
index d32aa58400..0af86dcf0c 100644
--- a/tools/dtoc/test_src_scan.py
+++ b/tools/dtoc/test_src_scan.py
@@ -161,6 +161,10 @@ class TestSrcScan(unittest.TestCase):
prop.value = 'rockchip,rk3288-grf'
node = FakeNode()
node.props = {'compatible': prop}
+
+ # get_normalized_compat_name() uses this to check for root node
+ node.parent = FakeNode()
+
scan = src_scan.Scanner(None, False, None)
with test_util.capture_sys_output() as (stdout, _):
name, aliases = scan.get_normalized_compat_name(node)
@@ -419,6 +423,9 @@ U_BOOT_DRIVER(%s) = {
node.name = 'testing'
node.props = {'compatible': prop}
+ # get_normalized_compat_name() uses this to check for root node
+ node.parent = FakeNode()
+
return scan, drv1, driver2, node
def test_dup_drivers(self):