powerpc/fsl: Added aliased MSIIR register address to MSI node in dts

[karo-tx-linux.git] / Documentation / devicetree / bindings / powerpc / fsl / msi-pic.txt

diff --git a/Documentation/devicetree/bindings/powerpc/fsl/msi-pic.txt b/Documentation/devicetree/bindings/powerpc/fsl/msi-pic.txt
index 5d586e1ccaf504d6a6834b38605f864fd168eb23..5693877ab377d6007cdb9e7f4ae7705faec581d7 100644 (file)
--- a/Documentation/devicetree/bindings/powerpc/fsl/msi-pic.txt
+++ b/Documentation/devicetree/bindings/powerpc/fsl/msi-pic.txt
@@ -6,8 +6,10 @@ Required properties:
   etc.) and the second is "fsl,mpic-msi" or "fsl,ipic-msi" depending on
   the parent type.
 
-- reg : should contain the address and the length of the shared message
-  interrupt register set.
+- reg : It may contain one or two regions. The first region should contain
+  the address and the length of the shared message interrupt register set.
+  The second region should contain the address of aliased MSIIR register for
+  platforms that have such an alias.
 
 - msi-available-ranges: use <start count> style section to define which
   msi interrupt can be used in the 256 msi interrupts. This property is