[PATCHv5 2/6] dt-bindings: pci: layerscape-pci: Add a optional property big-endian

[Zhiqiang Hou]

From: Hou Zhiqiang <Zhiqiang.Hou@xxxxxxx>

This property is to indicate the endianness when accessing the
PEX_LUT and PF register block, so if these registers are
implemented in big-endian, specify this property.

Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@xxxxxxx>
Acked-by: Rob Herring <robh@xxxxxxxxxx>
---
V5:
 - No change

 Documentation/devicetree/bindings/pci/layerscape-pci.txt | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/pci/layerscape-pci.txt b/Documentation/devicetree/bindings/pci/layerscape-pci.txt
index 6d898dd4a8e2..d633c1fabdb4 100644
--- a/Documentation/devicetree/bindings/pci/layerscape-pci.txt
+++ b/Documentation/devicetree/bindings/pci/layerscape-pci.txt
@@ -40,6 +40,10 @@ Required properties:
   of the data transferred from/to the IP block. This can avoid the software
   cache flush/invalid actions, and improve the performance significantly.
 
+Optional properties:
+- big-endian: If the PEX_LUT and PF register block is in big-endian, specify
+  this property.
+
 Example:
 
 	pcie@3400000 {
-- 
2.17.1