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[PATCH v3 mailbox+firmware 6/6] dt-bindings: firmware: Document cznic,turris-mox-rwtm binding




This adds device tree binding documentation for the driver communicating
with the rWTM firmware on Turris Mox.

Signed-off-by: Marek Behún <marek.behun@xxxxxx>
Cc: Rob Herring <robh+dt@xxxxxxxxxx>
Cc: devicetree@xxxxxxxxxxxxxxx
---
 .../firmware/cznic,turris-mox-rwtm.txt        | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/firmware/cznic,turris-mox-rwtm.txt

diff --git a/Documentation/devicetree/bindings/firmware/cznic,turris-mox-rwtm.txt b/Documentation/devicetree/bindings/firmware/cznic,turris-mox-rwtm.txt
new file mode 100644
index 000000000000..338169dea7bb
--- /dev/null
+++ b/Documentation/devicetree/bindings/firmware/cznic,turris-mox-rwtm.txt
@@ -0,0 +1,19 @@
+Turris Mox rWTM firmware driver
+
+Required properties:
+ - compatible		: Should be "cznic,turris-mox-rwtm"
+ - mboxes		: Must contain a reference to associated mailbox
+
+This device tree node should be used on Turris Mox, or potentially another A3700
+compatible device running the Mox's rWTM firmware in the secure processor (for
+example it is possible to flash this firmware into EspressoBin).
+
+Example:
+
+	firmware {
+		turris-mox-rwtm {
+			compatible = "cznic,turris-mox-rwtm";
+			mboxes = <&rwtm 0>;
+			status = "okay";
+		};
+	};
-- 
2.19.2