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-rw-r--r--Documentation/devicetree/bindings/mailbox/omap-mailbox.txt8
-rw-r--r--Documentation/devicetree/bindings/mailbox/sti-mailbox.txt51
2 files changed, 59 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/mailbox/omap-mailbox.txt b/Documentation/devicetree/bindings/mailbox/omap-mailbox.txt
index d1a043339..9b40c4925 100644
--- a/Documentation/devicetree/bindings/mailbox/omap-mailbox.txt
+++ b/Documentation/devicetree/bindings/mailbox/omap-mailbox.txt
@@ -75,6 +75,14 @@ data that represent the following:
Cell #3 (usr_id) - mailbox user id for identifying the interrupt line
associated with generating a tx/rx fifo interrupt.
+Optional Properties:
+--------------------
+- ti,mbox-send-noirq: Quirk flag to allow the client user of this sub-mailbox
+ to send messages without triggering a Tx ready interrupt,
+ and to control the Tx ticker. Should be used only on
+ sub-mailboxes used to communicate with WkupM3 remote
+ processor on AM33xx/AM43xx SoCs.
+
Mailbox Users:
==============
A device needing to communicate with a target processor device should specify
diff --git a/Documentation/devicetree/bindings/mailbox/sti-mailbox.txt b/Documentation/devicetree/bindings/mailbox/sti-mailbox.txt
new file mode 100644
index 000000000..b61eec920
--- /dev/null
+++ b/Documentation/devicetree/bindings/mailbox/sti-mailbox.txt
@@ -0,0 +1,51 @@
+ST Microelectronics Mailbox Driver
+
+Each ST Mailbox IP currently consists of 4 instances of 32 channels. Messages
+are passed between Application and Remote processors using shared memory.
+
+Controller
+----------
+
+Required properties:
+- compatible : Should be "st,stih407-mailbox"
+- reg : Offset and length of the device's register set
+- mbox-name : Name of the mailbox
+- #mbox-cells: : Must be 2
+ <&phandle instance channel direction>
+ phandle : Label name of controller
+ instance : Instance number
+ channel : Channel number
+
+Optional properties
+- interrupts : Contains the IRQ line for a Rx mailbox
+
+Example:
+
+mailbox0: mailbox@0 {
+ compatible = "st,stih407-mailbox";
+ reg = <0x08f00000 0x1000>;
+ interrupts = <GIC_SPI 1 IRQ_TYPE_NONE>;
+ #mbox-cells = <2>;
+ mbox-name = "a9";
+};
+
+Client
+------
+
+Required properties:
+- compatible : Many (See the client docs)
+- reg : Shared (between Application and Remote) memory address
+- mboxes : Standard property to specify a Mailbox (See ./mailbox.txt)
+ Cells must match 'mbox-cells' (See Controller docs above)
+
+Optional properties
+- mbox-names : Name given to channels seen in the 'mboxes' property.
+
+Example:
+
+mailbox_test {
+ compatible = "mailbox_test";
+ reg = <0x[shared_memory_address], [shared_memory_size]>;
+ mboxes = <&mailbox2 0 1>, <&mailbox0 2 1>;
+ mbox-names = "tx", "rx";
+};