dtoc: Add a function to obtain a list of phandles
Add a function which can decode a property containing a list of phandles.
This is useful for finding nodes linked to a property. Also provide a way
to look up a single phandle and get the Fdt object from a Node.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/tools/dtoc/test_fdt.py b/tools/dtoc/test_fdt.py
index abec9e5..6fe03ac 100755
--- a/tools/dtoc/test_fdt.py
+++ b/tools/dtoc/test_fdt.py
@@ -115,6 +115,9 @@
fdt.CheckErr(-libfdt.NOTFOUND, 'hello')
self.assertIn('FDT_ERR_NOTFOUND: hello', str(e.exception))
+ def testGetFdt(self):
+ node = self.dtb.GetNode('/spl-test')
+ self.assertEqual(self.dtb, node.GetFdt())
class TestNode(unittest.TestCase):
"""Test operation of the Node class"""
@@ -188,6 +191,14 @@
self.assertIn("Internal error, property 'notstring' missing, offset ",
str(e.exception))
+ def testLookupPhandle(self):
+ """Test looking up a single phandle"""
+ dtb = fdt.FdtScan('tools/dtoc/dtoc_test_phandle.dts')
+ node = dtb.GetNode('/phandle-source2')
+ prop = node.props['clocks']
+ target = dtb.GetNode('/phandle-target')
+ self.assertEqual(target, dtb.LookupPhandle(fdt32_to_cpu(prop.value)))
+
class TestProp(unittest.TestCase):
"""Test operation of the Prop class"""
@@ -394,6 +405,15 @@
self.assertIn("property 'intval' has length 4, expecting 1",
str(e.exception))
+ def testGetPhandleList(self):
+ dtb = fdt.FdtScan('tools/dtoc/dtoc_test_phandle.dts')
+ node = dtb.GetNode('/phandle-source2')
+ self.assertEqual([1], fdt_util.GetPhandleList(node, 'clocks'))
+ node = dtb.GetNode('/phandle-source')
+ self.assertEqual([1, 2, 11, 3, 12, 13, 1],
+ fdt_util.GetPhandleList(node, 'clocks'))
+ self.assertEqual(None, fdt_util.GetPhandleList(node, 'missing'))
+
def testGetDataType(self):
self.assertEqual(1, fdt_util.GetDatatype(self.node, 'intval', int))
self.assertEqual('message', fdt_util.GetDatatype(self.node, 'stringval',