[PATCH v1 2/3] dt-bindings: mailbox: Document armada-37xx-rwtm-mailbox binding

[Marek BehÃn]

This adds device tree binding documentation for the rWTM BIU mailbox
driver on the Armada 37xx SOC (EspressoBin, Turris Mox).

Signed-off-by: Marek BehÃn <marek.behun@xxxxxx>
Cc: Rob Herring <robh+dt@xxxxxxxxxx>
Cc: devicetree@xxxxxxxxxxxxxxx
---
 .../mailbox/armada-37xx-rwtm-mailbox.txt         | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mailbox/armada-37xx-rwtm-mailbox.txt

diff --git a/Documentation/devicetree/bindings/mailbox/armada-37xx-rwtm-mailbox.txt b/Documentation/devicetree/bindings/mailbox/armada-37xx-rwtm-mailbox.txt
new file mode 100644
index 000000000000..2d182d61eb3f
--- /dev/null
+++ b/Documentation/devicetree/bindings/mailbox/armada-37xx-rwtm-mailbox.txt
@@ -0,0 +1,16 @@
+* rWTM BIU Mailbox driver for Armada 37xx
+
+Required properties:
+- compatible :	must be "marvell,armada-37xx-rwtm-mailbox"
+- reg : 	physical base address of the mailbox and length of memory mapped
+		region
+- interrupts:	the IRQ line for the mailbox
+- #mbox-cells:	must be 1
+
+Example:
+	rwtm: mailbox@b0000 {
+		compatible = "marvell,armada-37xx-rwtm-mailbox";
+		reg = <0xb0000 0x100>;
+		interrupts = <GIC_SPI 18 IRQ_TYPE_LEVEL_HIGH>;
+		#mbox-cells = <1>;
+	};
-- 
2.18.1