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[anybus,v2,4/5] dt-bindings: anybuss-host: document devicetree binding.

Message ID 20181031194425.32132-5-TheSven73@googlemail.com
State Superseded, archived
Headers show
Series Support HMS Profinet Card over Anybus | expand

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Commit Message

Sven Van Asbroeck Oct. 31, 2018, 7:44 p.m. UTC 
From: Sven Van Asbroeck <svendev@arcx.com>

This patch adds devicetree binding documentation for the
Arcx Anybus-S host.

Signed-off-by: Sven Van Asbroeck <svendev@arcx.com>
---
 .../bindings/bus/arcx,anybuss-host.txt        | 36 +++++++++++++++++++
 1 file changed, 36 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/bus/arcx,anybuss-host.txt
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Patch

diff --git a/Documentation/devicetree/bindings/bus/arcx,anybuss-host.txt b/Documentation/devicetree/bindings/bus/arcx,anybuss-host.txt
new file mode 100644
index 000000000000..5c28e4e09bb2
--- /dev/null
+++ b/Documentation/devicetree/bindings/bus/arcx,anybuss-host.txt
@@ -0,0 +1,36 @@ 
+* Arcx Anybus-S host
+
+This host communicates with the SoC over a parallel bus. It is
+expected that its Device Tree node is specified as the child of a node
+corresponding to the parallel bus used for communication.
+
+Required properties:
+
+  - compatible : The following string:
+        "arcx,anybuss-host"
+
+  - reg : bus memory area where the Anybus-S host dpram is located.
+
+  - interrupts : interrupt connected to the Anybus-S host interrupt line.
+	Generic interrupt client node bindings are described in
+		interrupt-controller/interrupts.txt
+
+  - resets : the reset line associated with the Anybus-S host.
+
+Example of usage:
+
+This example places the Anybus-S host on top of the i.MX WEIM parallel bus, see:
+Documentation/devicetree/bindings/bus/imx-weim.txt
+
+&weim {
+	anybus-host@0 {
+		compatible = "arcx,anybuss-host";
+		reg = <0 0x400000 0x800>;
+		interrupt-parent = <&gpio1>;
+		interrupts = <1 IRQ_TYPE_LEVEL_LOW>;
+		resets = <&anybus_bridge 0>;
+		/* fsl,weim-cs-timing is a i.MX WEIM bus specific property */
+		fsl,weim-cs-timing = <0x024400b1 0x00001010 0x20081100
+				0x00000000 0xa0000240 0x00000000>;
+	};
+};