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Diffstat (limited to 'doc/driver-model')
| -rw-r--r-- | doc/driver-model/README.txt | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/doc/driver-model/README.txt b/doc/driver-model/README.txt index d6fa5c4857..e949ff63ba 100644 --- a/doc/driver-model/README.txt +++ b/doc/driver-model/README.txt @@ -449,6 +449,15 @@ The driver model tree is intended to mirror that of the device tree. The root driver is at device tree offset 0 (the root node, '/'), and its children are the children of the root node. +In order for a device tree to be valid, the content must be correct with +respect to either device tree specification +(https://www.devicetree.org/specifications/) or the device tree bindings that +are found in the doc/device-tree-bindings directory. When not U-Boot specific +the bindings in this directory tend to come from the Linux Kernel. As such +certain design decisions may have been made already for us in terms of how +specific devices are described and bound. In most circumstances we wish to +retain compatibility without additional changes being made to the device tree +source files. Declaring Uclasses ------------------ |