Define a ranges property to specify the mapping between
the MC address space and the system address space.
Signed-off-by: Stuart Yoder <stuart.yoder@xxxxxxxxxxxxx>
---
.../devicetree/bindings/misc/fsl,qoriq-mc.txt | 30 +++++++++++++++++++++-
1 file changed, 29 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/misc/fsl,qoriq-mc.txt b/Documentation/devicetree/bindings/misc/fsl,qoriq-mc.txt
index 6aac955..848975f 100644
--- a/Documentation/devicetree/bindings/misc/fsl,qoriq-mc.txt
+++ b/Documentation/devicetree/bindings/misc/fsl,qoriq-mc.txt
@@ -35,6 +35,26 @@ Required properties:
Definition: Must be present and point to the MSI controller node
handling message interrupts for the MC.
+ - ranges
+ Value type: <prop-encoded-array>
+ Definition: A standard property. Defines the mapping between the child
+ MC address space and the parent system address space.
+
+ The MC address space is defined by 3 components:
+ <region type> <offset hi> <offset lo>
+
+ Valid values for region type are
+ 0x0 - MC portals
+ 0x1 - QBMAN portals
+
+ - #address-cells
+ Value type: <u32>
+ Definition: Must be 3. (see definition in 'ranges' property)
+
+ - #size-cells
+ Value type: <u32>
+ Definition: Must be 1.
+
Example:
fsl_mc: fsl-mc@80c000000 {
@@ -42,5 +62,13 @@ Example:
reg = <0x00000008 0x0c000000 0 0x40>, /* MC portal base */
<0x00000000 0x08340000 0 0x40000>; /* MC control reg */
msi-parent = <&its>;
- };
+ #address-cells = <3>;
+ #size-cells = <1>;
+ /*
+ * Region type 0x0 - MC portals
+ * Region type 0x1 - QBMAN portals
+ */
+ ranges = <0x0 0x0 0x0 0x8 0x0c000000 0x4000000
+ 0x1 0x0 0x0 0x8 0x18000000 0x8000000>;
+ };
--
2.3.3
--
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