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Date: Tue, 19 Apr 2016 16:53:08 -0500
From: Stuart Yoder <stuart.yoder@....com>
To: <devicetree@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>
CC: <leoyang.li@....com>, <robh+dt@...nel.org>,
<german.rivera@...escale.com>, <linux-kernel@...r.kernel.org>,
<shawnguo@...nel.org>, Stuart Yoder <stuart.yoder@...escale.com>,
Stuart Yoder <stuart.yoder@....com>
Subject: [PATCH 1/2 v3] Documentation: fsl-mc: binding updates for MSIs, ranges, PHYs
From: Stuart Yoder <stuart.yoder@...escale.com>
-The Freescale Management Complex and all associated objects
use message interrupts, and thus an msi-parent is required.
-Define a ranges property to specify the mapping between
the MC address space and the system address space.
-The fsl-mc node may optionally have dpmac sub-nodes that describe
the relationship between the Ethernet MACs which belong to the MC
and the Ethernet PHYs on the system board.
Signed-off-by: Stuart Yoder <stuart.yoder@....com>
Acked-by: J. German Rivera <German.Rivera@....com>
Acked-by: Rob Herring <robh@...nel.org>
---
-v3
-no changes
.../devicetree/bindings/misc/fsl,qoriq-mc.txt | 81 +++++++++++++++++++++-
1 file changed, 80 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/misc/fsl,qoriq-mc.txt b/Documentation/devicetree/bindings/misc/fsl,qoriq-mc.txt
index c7a26ca..6611a7c 100644
--- a/Documentation/devicetree/bindings/misc/fsl,qoriq-mc.txt
+++ b/Documentation/devicetree/bindings/misc/fsl,qoriq-mc.txt
@@ -30,11 +30,90 @@ Required properties:
region may not be present in some scenarios, such
as in the device tree presented to a virtual machine.
+ - msi-parent
+ Value type: <phandle>
+ 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.
+
+Sub-nodes:
+
+ The fsl-mc node may optionally have dpmac sub-nodes that describe
+ the relationship between the Ethernet MACs which belong to the MC
+ and the Ethernet PHYs on the system board.
+
+ The dpmac nodes must be under a node named "dpmacs" which contains
+ the following properties:
+
+ - #address-cells
+ Value type: <u32>
+ Definition: Must be present if dpmac sub-nodes are defined and must
+ have a value of 1.
+
+ - #size-cells
+ Value type: <u32>
+ Definition: Must be present if dpmac sub-nodes are defined and must
+ have a value of 0.
+
+ These nodes must have the following properties:
+
+ - compatible
+ Value type: <string>
+ Definition: Must be "fsl,qoriq-mc-dpmac".
+
+ - reg
+ Value type: <prop-encoded-array>
+ Definition: Specifies the id of the dpmac.
+
+ - phy-handle
+ Value type: <phandle>
+ Definition: Specifies the phandle to the PHY device node associated
+ with the this dpmac.
+
Example:
fsl_mc: fsl-mc@...000000 {
compatible = "fsl,qoriq-mc";
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>;
+ dpmacs {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ dpmac@1 {
+ compatible = "fsl,qoriq-mc-dpmac";
+ reg = <1>;
+ phy-handle = <&mdio0_phy0>;
+ }
+ }
+ };
--
1.9.0
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